Fluorescent items with several layers of film

FIELD: polymer items possessing fluorescent properties and property of reflection in opposite direction; information and signaling appliances.

SUBSTANCE: proposed sheet item has sublayer of film coated with fluorescent paint at concentration of from 0.001 to 1.5 wt-% relative to polymer matrix of sublayer, film of overlayer coated with fluorescent paint at concentration of from 0.001 to 1.5 wt-% relative to polymer matrix of overlayer. Fluorescent film of overlayer coated with paint possesses higher resistance to light as compared with sublayer film. Sheet of painted fluorescent film of overlayer lies over sheet of sublayer fluorescent film. Sheet item has selected fluorescent color different from color of overlayer fluorescent film and from color of sublayer fluorescent film. Specification gives description of production of such items.

EFFECT: enhanced resistance to action of atmospheric conditions; enhanced durability of color; wide range of color.

53 cl, 17 dwg, 8 tbl, 15 ex

 

Background of invention

The technical field to which the invention relates

This invention relates to polymers, incorporating fluorescent dyes. More specifically the invention relates to products having the properties of fluorescence and composed of multiple layers that work together to allow you to obtain important properties. Such properties provide the desired brightness and chromaticity, which allows you to show excellent resistance to atmospheric conditions and/or the overall color durability.

The level of technology

Product in which fluorescent dye embedded in a polymeric matrix, are widely known in the field of various applications, including traffic signs, marking of vehicles, markup carriageways of roads and other applications where good visibility is desirable for a number of reasons, including security, information dissemination, review, visual alarm and rapid detection. Extremely bright appearance of the fluorescent materials is the reason that provides enhanced visibility, which is especially apparent at dawn and dusk. In some applications, it is important to ensure and maintain compliance with some color standards and/or certain standards of durability.

Often these polymer systems containing a fluorescent coloring matter, is structured in the form of a sheet material that exhibits the properties of fluorescence. Particularly suitable application for these types of films, endowed with a fluorescent coloring substances are associated with use cases, in which the alarm system is the main function of the product. Typically, these products take the form of road signs, which can benefit by exercising its fluorescent effect. Known warning and indicator signs, including film, incorporating fluorescent dyes that enhance the visibility of signs. Road signs some types have to have the durability outdoors, which is a serious obstacle for their implementation, because most fluorescent dyes have low stability when exposed to ultraviolet radiation. Some of these products have the features of the reflection in the opposite direction.

For many years developed technical solutions in the field of products having the property of reflection in the opposite direction. Generally speaking, in the industry of transport there are three types of sheet materials having the property of reflection in the opposite the second direction, i.e. sheet material with closed lens sheeting with encapsulated lens and prismatic sheet material. In U.S. patent No. 2407680 (Palmquist) illustrates the so-called articles containing sheet material with closed lens having the property of reflection in the opposite direction. Assemblies of this type are also known as industrial products quality, life quality and increased industrial quality, and they have a typical reflectance in the opposite direction at an angle of entrance, comprising -4°and at the observation angle of 0.2°in the range between 50 and 160 CD/Lux/m2for the white sheet material, depending on the particular product.

In U.S. patent No. 3190178 (McKenzie) is illustrated in the General form of the so-called product with encapsulated lens with the property reflected in the opposite direction. These include sheet materials with granules embedded in the polymer, sometimes referred to as high-intensity products. In the case of a white sheet materials have typical reflectance in the opposite direction approximately 300 CD/Lux/m2.

The third common category of sheet materials having the property of reflection in the opposite direction, includes microprismatic optical elements, materiaalaspecten exceptional reflectivity, typically, in the range between about 400 and about 1600 CD/Lux/m2depending on the design of a particular product and the geometry of the elements of the vertices of the cube. Sheet materials containing vertices of a cube and having the property of reflection in the opposite direction, is described in U.S. patent No. 3684348 (Rowland), U.S. patent No. 4588258 (Hoopman), U.S. patent No. 5605761 (Burns) and U.S. patent No. 6110566 (White). Manufacturer of products of this type is illustrated in publications such as U.S. patent No. 3810804 (Rowland) and U.S. patent No. 4601861 and No. 4486363 (both Pricone). Note that in the art known to the formation of sheet materials having the property of reflection in the opposite direction, ensuring the implementation of thermoplastics in prismatic sheet materials. The present invention finds application in products that includes these basic types of structures that have the property to reflect in the opposite direction.

There are also technical solutions, how to increase the durability of ultraviolet light sheet material having the property of reflection in the opposite direction, which includes fluorescent dyes. In some known solutions of this type refers to the use of a layer of shielding ultraviolet (UV) light, on top of the fluorescent layer or in front of him. These are the solutions include Japanese patent publication No. 2-16042 (application No. 63-165914) (Koshiji), PCT publication no WO 99/48961 and # WO 00/47407 (Phillips) and U.S. patent No. 5387458 (Pavelka). In Japanese patent application States that to protect the fluorescent sheet materials are UV additives. PCT publication relate to fluorescent polyvinyl chloride (PVC) tape with a layer of shielding UV light with UV absorbing additives that escape at a wavelength of 425 nanometers (nm) and below. The above-mentioned U.S. patent No. 5387458 involves the use of a layer of shielding UV light, for a film selected from polymers containing the selected fluorescent paint.

In the art also recognized other ways to increase the durability of fluorescent colors by using the locking amine light stabilizers of the type (BSAT). Known technical solutions in this area include U.S. patent No. 5605761 (Burns) and U.S. patent No. 6110566 (White). The first one is to create a set of specific fluorescent dyes and BSAT in the polycarbonate matrix. The last of these patents is aimed at the introduction of low-molecular BSCAT and thioxanthenes paint inside PVC resin containing no solvent.

All of these patents, other technical solutions and patent publications, and any other mentioned in this description are in it for reference.

In the field of engineering, which includes technical is the cue solutions mentioned type, to some extent it is recognized that the provision of fluorescence road signs that have the property to reflect in the opposite direction, causes enhanced visibility in most lighting conditions. Characterized by a bright light and/or fluorescence characteristics of the fluorescent materials attract attention to fluorescent traffic signs or other products. For example, products that represent symbols which are used outdoors and stained with a fluorescent coloring substances that increase visual contrast, making the content more visible than in the case of fluorescent colors. When such sign is intended for applications in outdoor, we have to consider two main obstacles. One of them is the durability in the open air, and the other is the existence of a specific color.

Unfortunately, most fluorescent dyes have poor stability when exposed to UV light. When exposed to sunlight or other sources of UV light fluorescent dyes can quickly fade. Special problems this creates in the case of traffic signs and roadway markings of the road, because fast Tuscania fluorescent color can dramatically shorten the life of the sign or marking. Although some fluorescent lighting is the following substances have greater stability when exposed to UV light, than others, even the best fluorescent dyes are commercially available, can not meet the requirements of increased durability outdoors, imposed by an application associated with road signs, when these substances are used separately in the layer of polymer matrix to create a fluorescent film having the property of reflection in the opposite direction. To increase the durability of such films should take additional measures to protect the fluorescent dyes.

Common practice method of increasing the durability outdoors is the use of a layer of shielding UV light, such as the one described in the above-mentioned known technical solutions in the context of attempts to protect the core layer of the fluorescent polymer matrix. Typically, such a layer of shielding UV light produced by the dissolution of compounds which absorb UV light in a transparent polymer matrix. In the known technical solutions disclosed fluorescent product, consisting of a layer, the shielding of UV light applied before fluorescent colored layer. Layer, shielding UV light, is designed to absorb UV light in a certain range. UV light has a wavelength range from 290 to 380 nm. In some known technical solutions site is assumed shielding some part of light in the visible light range, for example, up to 400 or 410 nm. Often approaches such as this, do not take into account the possible interaction between substance that absorbs UV light shielding layer and the fluorescent dye within the underlying colored layer and/or determine the measures that should be taken against this interaction.

Although the shielding of UV light is designed to solve the durability outdoors, this may lead to some difficulties. One of them is due to the fact that participants in these shielding layers of compounds that absorb UV light and may eventually disappear or to diffuse or migrate into the underlying fluorescent layer. This diffusion may in reality accelerate Tuscania fluorescent coloring matter in some circumstances.

In such renowned publications as U.S. patent No. 5605761 (Burns) and U.S. patent No. 6110566 (White)proposed articles containing fluorescent sheet materials, which according to these patents do not necessarily have to include a separate layer, shielding UV light. In a typical case we are talking about specific combinations of polymers and fluorescent inks, often together with materials BSAT, in the same film. In particular, in the first of these patents it comes to fluorescent products containing fluorescent dyes and BSAT in the polycarbonate matrix. In the last of these patents the idea is that some combination of fluorescent thioxanthenes paint and material BSAT in PVC matrix, solvent improves the stability of fluorescent colors in the PVC when exposed to light.

In the art it is also known that some of the polymer matrix more suitable as a host for fluorescent inks in the context of the durability of the resulting product when exposed to UV light. However, in the art, generally speaking, there is no information on whether acrylic polymers such as polymethylmethacrylate (PMMA), suitable for creating a polymer matrix suitable for fluorescent colors when you want durability when exposed to light in the open air. For example, in U.S. patent No. 5387458 (Pavelka) proposed fluorescent products containing fluorescent dye dispersed in various polymer matrices. The idea is that the durability of the fluorescence of the fluorescent dyes in PMMA is low even in the presence of the overlay layer, the shielding of UV light. Burns in U.S. patent No. 5605761 offers fluorescent products containing fluorescent dye and a compound BSCAT and polycarbonate and PMMA. This patent suggests that the introduction of the connection BSAT in polycarbonate matrix, which greatly increases the durability of the fluorescence of the products obtained, but it doesn't give the same effect when embedded in PMMA. In such sources, as just mentioned, it is concluded that PMMA is not a suitable polymer matrix for fluorescent colors, because these products are acrylic-based do not show adequate durability fluorescence when subjected to prolonged exposure to atmospheric conditions outdoors.

Conclusion according to which the acrylic polymers may not be suitable "host" for the fluorescent colors, inappropriate, because acrylic polymers have advantages over other polymers, such as polycarbonate. Compared with other polymers, such as polycarbonate, acrylic polymers are inexpensive, easier handled due to the relatively low glass transition temperature and, usually, have greater stability when exposed to UV light. For example, after several years of use outdoors in the polycarbonate can be discoloration, cracking and the development of turbidity and/or yellowness. But the acrylic polymers can withstand such atmospheric conditions in the open air for a much longer time before you have such defects. However, the main drawback of the use of acrylic polymers is that while Silovye polymers tend to be more brittle, than other polymers, such as polycarbonate.

Although fluorescent acrylic products with modern technology and promise some hope, issues related to color stabilization and/or stabilization of fluorescence when exposed to ultraviolet radiation and visible light, present a problem of considerable importance. In the ideal case, if it were possible to find a solution, it would be possible to obtain technological and economic benefits of the application of the acrylic polymer. In addition, since the acrylic materials are, of course, will be more resistant to atmospheric conditions than other polymers, such decision will potentially become even more important and significant, because the coating that protects from UV light, can be optional.

Referring now to the problem of obtaining products that meet the standards, requirements, or needs painting, we note that the considerations coloring put a formidable task to suppliers of fluorescent products, especially those products that should be very durable. And this was the case regardless of whether the state standards coloring or other industry standards.

In this regard, it is assumed that there are three main approaches to obtaining the desired fluorescent color typical of the beam, when specified additive available fluorescent dyes does not lead to the achievement of the target fluorescent color. One approach is to correct the added amount of the coloring matter. This solution is often simply inadequate, because the color tone of the resulting product is essentially unchanged.

The second approach consists in mixing with each other several fluorescent colours. This approach may raise serious questions of compatibility as between colors and between one or more colors and a polymer matrix in which they should be added. Different paints have different compatibility with various polymers due to differences between their chemical structures or in them. Thus, the durability of a given dye pigments when exposed to UV light will be different in different polymer matrices. Even if the desired fluorescent dye is obtained by mixing several fluorescent colours with each other, introducing them in a single polymer matrix, can not achieve the desired durability when exposed to light, if one of the fluorescent ink fades faster than other fluorescent dye in a polymer matrix. Similarly, one fluorescent dye may have an adverse STRs what oblastjami to interact with another dye within the polymer matrix. Even if stability when exposed to UV light inside the polymer matrix can be achieved when fluorescent paints are used separately, compatibility issues between colors can cause the finished product will have a low stability when exposed to UV light, when these colors are mixed with each other by typing them in the same polymer matrix.

It should be noted that in such well-known technical solutions, as described in U.S. patent No. 5672643, No. 5674622, No. 5754377 and No. 5920429 (everything Burns), it is proposed to produce fluorescent yellow product by mixing prelinking paints shades of orange or red shades with yellow-green fluorescent paints. However, information about attainable durability of such products in the specified source is missing.

The third possible approach implies that the polymer matrix comprises a mixture of afluorescent paint with fluorescent paint. The issues mentioned above in connection with multiple fluorescent dyes in the same polymer matrix arise in this scenario. The decision can be even more difficult due to more typical chemical differences between the fluorescent dye and afluorescent paint. In addition, there is a possibility that afluorescent paint can interfere with p is oyavleniy fluorescence properties of the fluorescent dye, that can dramatically reduce the brightness of the sheet material. Afluorescent paint can significantly reduce the fluorescence of the fluorescent paint.

Therefore, in the present stage of technological development the need to solve this problem, the color still remains. As a rule, the supplier of products of this type it is not necessary to solve the problem of color in accordance with those requirements, which the consumer fluorescent products dictate the standards of painting. On the contrary, the consumer dictates the color of the manufacturer of such products, and the palette of colors is limited suppliers of paints. For example, government agencies that can become potential consumers of fluorescent traffic signs for highways, and often will determine the color standards and/or durability for such characters.

It should be recognized that attempts to solve two main problems - durability when exposed to light and color compatibility within the same product only exacerbate difficulties in solving these problems. In addition, a viable solution to these problems will be even more important if the same product will successfully solve the problems of both mentioned types.

Disclosure of invention

In accordance with the present invention proposed ed is lia, ensuring the achievement of fluorescent paint, which can be manipulated to meet the needs of the target color at simultaneous high stability of fluorescent light when exposed to light and resistance to discoloration and clouding after a long stay in the open air. The invention uses the approach of multiple layers. Provided at least two layers, such as films, one on top of another. Each layer includes a dye or pigment. In many applications, each of the multiple layers will contain a fluorescent dye. One of the layers exhibits excellent stability of fluorescent light. In a preferred embodiment, a layer that lies on top of another layer. If you look on the outside, the color shown by the combined colored layers, it provides options of color needed to match the target color is dictated to some specified standard.

The General objective of the present invention is to develop products or products that are sitosterolemia and reach the desired color, and the way to obtain such products or articles.

One aspect of the present invention is that the proposed improved fluorescent colored products, which is ostiguy desired color values, while maintaining the attributes of durability, and which is exceptionally well suited for use indoors or outdoors, including operating under the influence of a wide range of atmospheric conditions.

Another aspect of the present invention is that an improved fluorescent colored sheet material having the property of reflection in the opposite direction, suitable for use in the manufacture of warning and indicator signs.

Another aspect of the present invention is that the proposed stable when exposed to light fluorescent yellow sheet material having the property of reflection in the opposite direction, suitable for use in the manufacture of road warning shields, such as warning V-signs, signs, railroad crossings, etc. that provide the color desired for signs of this type.

Another aspect of the present invention is that the approach to the use of weatherproof polymer such as acrylic polymer matrix, in fluorescent system, which is stable when exposed to light, and stable enough for long-term operation in harsh atmospheric conditions, such as those that come what steps to consider in the production of signs, designed for use outdoors.

Another aspect of the present invention is that the proposed products contain several layers, of which one is unfit and fit together to create a durable when exposed to light and properly painted objects.

Another aspect of the present invention is that the proposed layered sheets of film that are fluorescent yellow color, sheet material having the property of reflection in the opposite direction, which has suitable durability and color when the said sheets are combined, but not when they are used separately.

Another aspect of the present invention is the increased fluorescence and color stability of the United sheets of film that are not achieved by selecting the film in a single layer.

Another aspect of the present invention is the ability to extend the range of available fluorescent colors without mixing colors.

Another aspect of the present invention is the introduction of fluorescent acrylic layer in the structure of the product to improve performance during the manufacture of the product.

Another aspect of the present invention is that the selected fluorescent okra is ka products selected from the group consisting of fluorescent yellow, fluorescent yellow-green, fluorescent orange, fluorescent red, fluorescent blue and fluorescent green, provide a paint selected from the group consisting of benzoxanthenes, benzothiazines, perylenes, perylenediimides, complex Pereladova esters, thioxanthones, thioindigo and their combinations.

Another aspect of the present invention is that the selected fluorescent coloration of the product is fluorescent yellow, with chromaticity coordinates, "x" and "y"that are restricted to the following chromaticity coordinates, "x" and "y": (x=0,479, y=0,520), (x=0,466, y=0,483), (x=0,512, y=0,421) and (x=0,557, y=0,422).

Another aspect of the present invention is that colored fluorescent film overlay layer, essentially blocking light having a wavelength from about 280 nm to about 450 nm.

Another aspect of the present invention is that the product is a sign, suitable for use outdoors, at least for three years, and the film overlay layer and the film substrate together to provide a yellow color within the palette limited to the following chromaticity coordinates, "x" and "y": (x=0,479, y=0,520), (x=0,466, y=0,483), (x=0,512, y=0,421) and (x=0,557, y=0,422).

Another aspect of the present invention is that polymer clay is Naya film sealing layer contains a polymer resin, moreover, the aforementioned polymer resin contains at least one polymer or mixture of polymers selected from the group consisting of:

(i) polymers having a main chain of a polymer containing the following recurring part As:

where R is not interfering with the Deputy, and R is the remainder of the polymer, these polymers are able to absorb ultraviolet light,

(ii) polymers having a main chain of a polymer containing the following recurring part In:

where R is not interfering with the Deputy, and R is the remainder of the polymer, and referred to part b is transformed in part a by photopresspro, resulting in the above-mentioned polymer containing part can be transformed into a polymer that absorbs ultraviolet light and containing part a,

while the product has mentioned colored fluorescent film overlay layer above mentioned colored fluorescent film substrate and said film sealing layer over the said substrate, and

the said product is selected fluorescent coloration that is different from the aforementioned colored fluorescent film overlay layer, and of said colored fluorescent film sublayer.

Another aspect of the present invention is that the poly is Ratna resin contains, at least one polymer selected from the group consisting of polyarylate polymers containing one of the following repeating structures I and II or both:

Other aspects, objectives and advantages of the present invention will become clear from the following description, the respective preferred specific variants of implementation of the present invention, relevant information of which is illustrated in the accompanying drawings.

Brief description of drawings

Throughout this description will be made reference to the accompanying drawings, in which:

figure 1 presents an illustration of the cross section of the fluorescent sheet material having painted several layers of film, showing the overlay layer containing a fluorescent dye, a sublayer having a coloring matter, and made it microprismatic elements that have the property to reflect in the opposite direction;

on figa presents an illustration of the cross section of the fluorescent sheet material having painted several layers of transparent tape over microprismatic elements that have the property to reflect in the opposite direction;

figure 2 presents an illustration of the cross section of the fluorescent sheet material, it is found several layers of film and includes additional external protective layer;

figure 3 presents an illustration of a section of sheet material with closed lens having the property of reflection in the opposite direction, in a particular embodiment of the present invention, in which the fluorescent sheet material having multiple layers of film, is located on top of the structure hidden lenses;

figure 4 presents an illustration of a section of sheet material with encapsulated lens with the property reflected in the opposite direction, in a particular embodiment of the present invention, in which the fluorescent sheet material having multiple layers of film, is located on top of the structure is encapsulated lens;

figure 5 presents the coordinates "x" and "y" schedule of values of chromaticity, built according to the standard color coordinate system adopted by the International Commission on illumination (CIE) in 1931 (CIE-1931), for thin film structures with respect to the values of the fluorescent yellow-green colour;

figure 6 presents the coordinates "x" and "y" schedule of values of chromaticity, built according to the standard color coordinate system of the ice-1931, types of sheet materials having the property of reflection in the opposite direction with respect to the overlay layer with the target values fluorescent yellow and selenag the colors;

figure 7 presents the curve of the transmittance of light of the fluorescent yellow-green acrylic polymer, illustrating the effect of blocking the light, projected film corresponding to the invention;

on Fig presents a plot of the degree of color shift from time accelerated or artificial atmospheric conditions, illustrating the various effects of exposure to certain film and the same film, but with an overlay layer of fluorescent polymer matrix;

figure 9 presents a plot of the degree of color shift from time accelerated or artificial atmospheric conditions, illustrating the various effects of exposure to certain film and the same film, but with an overlay of the fluorescent layer of the polymer matrix, while the underlying film comprises a UV light absorber;

figure 10 presents a plot of the degree of color shift from time accelerated or artificial atmospheric conditions, illustrating the various effects of exposure to certain film and the same film, but with an overlay of the fluorescent layer of the polymer matrix, while the underlying film comprises a UV light absorber component and SAT;

figure 11 presents a graph of the dependence of the degree of color shift from time accelerated or artificial atmospheric conditions, illustrating the various effects of exposure to certain film and the same film, but with an overlay of the fluorescent layer of the polymer matrix, while the underlying layer includes a component BSAT;

on Fig presents a plot of the degree of color shift from time accelerated or artificial aging for a single layer of yellow-green fluorescent acrylic film and sheet material having this film as an overlay layer deposited on a polymeric matrix containing a yellow dye;

on Fig presents a plot of the degree of color shift from time accelerated or artificial aging for a single layer of yellow-green fluorescent acrylic film and sheet material having this film as an overlay layer deposited on a polymeric matrix containing a yellow dye, which differs from that described in Fig;

on Fig represented in the coordinates "x" and "y" graph color values for films, are built in relation to the target values fluorescent yellow;

on Fig represented in the coordinate of the "x" and "y" graph color values for films, built with respect to the target values fluorescent yellow;

on Fig represented in the coordinates "x" and "y" graph color values for films having the property of reflection in the opposite direction, is constructed in relation to the target values fluorescent yellow; and

on Fig presents the curve of the transmittance of light of the fluorescent yellow-green polycarbonate illustrating the effect of blocking the light, projected film component corresponding to the invention.

The implementation of the invention

The present invention is devoted to the creation of fluorescent sheet material having multiple film layers, which provide excellent stability when exposed to light and the settings of the target fluorescent color. Various specific embodiments of the invention illustrated in the drawings. In each case, the polymer overlay layer with fluorescent paint, combined with the underlayer polymer matrix having the attributes of painting, which in combination with the overlay layer provides the target color and excellent stability fluorescent color after a long stay in the open air.

Figure 1 illustrates a multilayer film sheet material, designated as a whole by position 21. This Fox is new material embodied in the form determining the property of the reflection in the opposite direction. Shows the overlay layer 22 and the underlayer 23. Each layer includes a dye, preferably a fluorescent dye. In this particular embodiment, painted sublayer 23 itself has elements that have the property to reflect in the opposite direction.

In other specific embodiments, the implementation of elements that have the property to reflect in the opposite direction, such as those shown in this particular embodiment, may be uncolored or transparent. For example, on figa presents layer 23a having the property of reflection in the opposite direction, consisting of a transparent polymer which is suitable for stamping or forming the vertices of a cube. With this arrangement of multiple layers of colored polymer constitute a separate overlay layer 22A and the sublayer 22b, none of which has any elements that have the property to reflect in the opposite direction.

The underlayer 23 or layer 23a has a set microprismatic elements that have the property to reflect in the opposite direction, located on the back surface of this layer. These elements have the property to reflect in the opposite direction, known in the art and described in such sources as U.S. patent No. 4588258 (Hoopman)and U.S. patent No. 4775219 (Appledorn). This prismatic design can be manufactured, for example, in accordance with U.S. patent No. 3810804 (Rowland) and U.S. patent No. 4896363 and No. 4601861 (both Pricone). For forming the sublayer layer 23 or 23a of prismatic elements 24, having the property of reflection in the opposite direction, you can use any suitable method and equipment or to ensure their presence on this layer in some other way.

The peculiarity of the reflection in the opposite direction, provide microprismatic elements 24, is illustrated by the line passing light supplied by the arrows shown in figures 1 and 1A. For simplicity, the illustration shows only two dimensions of this three-dimensional reflection. This is a simplified optical image shows the incident beam is twice reflected by the product with the receipt of the reflected parallel beam.

Figure 2 shows a similar multi-layer film having the property of reflection in the opposite direction. In this particular embodiment, the introduced sealing or covering layer 25. It is introduced when there is a need for improved shielding of UV light to prevent deterioration of the overlay layer of the polymer, for example, due to discoloration, turbidity, cracking or yellowing of the polymer. In addition, suitable sealing or Pokrywa is a first layer 25 can improve the durability of fluorescent dyes, as well as to improve resistance to scratching and protection from unauthorized labels. Such sealing or covering layer can be chosen so that it has other properties that are desirable for the front surface of the sign and the like, for example, resistance to irrigation and/or ease of printing on it.

In a typical case, the layers are layered on each other, for example by application of heat and/or pressure using conventional equipment. Depending on the specific needs or requests in connection with multi-layer sheet material film in accordance with the invention between the above layers can be submitted optional binder layers. To the extent that this is necessary for a particular design or the needs of the consumer, it is possible to provide an adhesive for a layup. Wherever he was provided any such layer or layers should be selected so that it was not caused by a significant reduction properties, seeks to achieve a multilayer fluorescent product in accordance with the invention.

On the surface one or more layers may be printed with desired characters, so the finished layered or multi-layered structure will have the desired characters on the inner surface, such as described in U.S. patent No. 5213872 and No. 5310436. Other options - poem is these - or other alternative structural layout of interest for products relevant to the invention will be obvious to experts in the field of sheet materials having the property of reflection in the opposite direction.

One such structural arrangement is shown in figure 3. Here is how you can implement the present invention in a product containing sheet material with closed lens having the property of reflection in the opposite direction. Sheet material with closed lens having the property of reflection in the opposite direction, is well known in the art, and the earliest source in this area is U.S. patent No. 2407680 (Palmquist). This technology may provide such lenses as glass microspheres embedded in the structure of the sheet material with a flat transparent cover film. In the specific embodiment shown in figure 3, glass microspheres 26 embedded in the sublayer 23. In accordance with the prior art provides a specularly reflecting layer 27; for example, it can be aluminum, deposited in vacuum. Providing the reflection in the reverse direction, the nature of this structure hidden lenses is illustrated a simplified two-dimensional arrows shown by the light beam, which is shown passing through overl any layer 22, the underlayer 23 in microspheres and through them on Wednesday 28 and through it back and forth.

This overlay layer sublayer 22 and 23 can also be layering on each other and thus to provide a layer of glue (not shown), which is transparent to connect the balls 26 and the substrate. In this case, the balls are embedded in the adhesive so that the underlayer 23 accommodates the tops of the balls, as shown in figure 3.

Figure 4 shows how you can implement the present invention in a product with encapsulated lens with the property reflected in the opposite direction. Features of the reflection in the opposite direction, which has a sheet material with closed lens, and the corresponding structure is well known in the art. A monolayer of lenses, such as glass microspheres partially embedded in a binder layer, and the film is soldered to the layer of binder so that the lenses are encapsulated within a hermetically sealed cells. In the illustrated specific embodiment, glass microspheres 31 embedded in the layer of binder 32. For the hermetic prepaymania lenses to the layer of binder soldered sublayer 23. The depicted lens 31 have their own reflective surface 33 to provide reflection in accordance with the image shown by labeled arrows the path of light, which is illustrated in figure 4.

Fluoresc ntoe product corresponding to the invention, includes several polymer matrices. In one of the underlay or overlay layer or both of them included fluorescent paint. Fluorescent paint is preferably enclosed in a polymeric matrix overlay layer 22 and inside the polymer matrix of the underlayer 23. In a typical product-based paint in each layer is different. This facilitates the implementation of the important features of the present invention having a multilayer film, which shows the fluorescent light is needed for a particular application, without having to physically paint in the same polymer matrix.

The polymer matrix may be different. Their examples include polycarbonates, polyesters, polystyrenes, copolymers of styrene and Acrylonitrile, polyurethanes, polyvinyl chloride, polymers formed from acrylic resins, polyarylate, as well as their copolymers and combinations. The overlay layer, a sublayer and any sealing layer can be composed of different polymers.

The overlay layer is a polymer comprising polycarbonates, acrylic polymers, polyarylate, as well as their copolymers and combinations. In a preferred aspect of the invention, the polymer overlay layer is formed from polycarbonate, which was found to provide excellent stabil the ability of fluorescent light. Suitable acrylic resin, which provides very good resistance to atmospheric conditions, provided proper selection of a specific acrylic resin and fluorescent paint. The sublayer should not give excellent stability of fluorescent light layered material and therefore can be made of a material of the type which needs to be protected from exposure to atmospheric conditions in aggressive environments. The preferred polymer substrate include acrylic polymer, polystyrene and polyvinyl chloride. The acrylic polymer is particularly preferred as a substrate, if this sublayer will be introduced microprismatic elements, as shown in figure 1.

Polymers, including polyarylate and other matrix types, as well as members of the components discussed in the application filed by the Applicant of this application and simultaneously considering applications No. 09/710510 and No. 09/710560 on U.S. patents, each of which is filed November 9, 2000, Information about them is given in this specification for reference.

The composition of any of the overlay layer and the substrate, or both may include other widely known components. This UV light absorbers and components BSAT. One or more such components for any of these types, or both of them may be part of any given polymer clay is Noah matrix.

The polymer matrix is a significant percentage of the layer by weight. The content of polymer component is in the range between about and about 90 to 99.99 weight percent of the composition constituting each polymeric matrix, and in the preferred embodiment is in the range between about 95 and about 99 weight percent. The level of presence of each ink is between about 0.001 and about 1.5 weight percent of the total weight of the composition of each matrix, and in the preferred embodiment, is between about 0,002 and about 1.0 mass percent. When it is present in the composition, the content of the UV light absorber is provided at levels between about 0.1 and about 5 mass percent, and in the preferred embodiment, is between about 0.3 and about 3 mass% of the total weight of the composition of the polymer matrix. When there is a component of BSCAT, its content will be between about 0.1 and about 2 mass percent, and in the preferred embodiment, is between about 0.3 and about 1.5 mass percent of the total weight of the composition of the polymer matrix.

When it is necessary to provide the acrylic matrix, in the General case, it is preferable that the acrylic resin composition was provided by the minimization of the quantities of such substances-amplifiers operating characteristics, as m is defecatory influence or external lubricants, etc. When such additives are present, you should pay special attention to possible negative interactions when selecting fluorescent paint. Also considered useful to minimise the number present acrylic monomer. Without limiting the generality of reasoning to any specific theory, we note that at the present time believe that such substances-amplifiers operating characteristics or residual monomers may affect the fluorescent dye in an acrylic matrix, thereby creating the potential to accelerate the degradation of the fluorescence when exposed to light, particularly UV light. Currently consider that this effect is enhanced when it is combined with humidity, temperature cycles and ultraviolet radiation. The preferred acrylic resin is polymethylmethacrylate. Specific acrylic resin, which meets the requirements of these tasks, sold under the trade designation "ZKV-001E" firm Cyro Industries. There are other resins, such as Atoglass PSR-9 from the company Atofina.

In a preferred embodiment, the color is provided in each of the overlay layer and sublayer by means of fluorescent paint. Paint, suitable for this purpose include benzoxanthene, benzothiazine, perilene, tioksantena, thioindigo, naphthalimide and coumarins. OBN is hidden, that the unification of the films of paints having different properties color, it is useful in the context of the invention to create products fluorescent colors that can be adapted to meet certain existing or prospective needs of industry.

Found that when creating a fluorescent yellow layered material, particularly suitable for encapsulation within the component overlay layer in accordance with the present invention are paints benzothiazinones type and benzoxanthenes type. Specifically preferred colors for the overlay layer are fluorescent yellow-green paint. These include those that come under the trademarks "Huron Yellow" and "Lumofast Yellow" firm DayGlo Color Corporation. These include paint "Huron Yellow D-417" and "Lumofast Yellow D-150". Can occur in numerous ways. When included in the composition of the polymer matrix overlay layer according to the invention this paint gives excellent brightness in the daytime. It can be used in the range from about 0.02 to about 1.5 weight percent, and preferably in the range from about 0.03 to about 1.3 weight percent of the total weight of the composition matrix. Hitch weight will depend on the thickness of the sheet and the desired intensity of color for a specific target application. For example the EP, products with the property of reflection in the opposite direction, as a rule, require that this fluorescent dye necessarily have sufficient transparency so as not to have a material adverse effect on the running product of the reflection function in the opposite direction.

Another class of dyes, which found particular application in the offered products are perrenially paint. Found that a very useful color and the color of the fluorescence is provided in the context of multi-layer products using prelinking paints supplied by BASF under the trademark "Lumogen". Their examples include "Lumogen F Orange 240" and "Lumogen F Red 300". The combination of colors in the sublayer and benzothiazinones or benzoxanthene yellow-green colors in the overlay layer leads to values of color and color that are properly aligned with industry standards on fluorescent yellow sheet materials.

Other examples of colors for the overlay layer may include other fluorescent dyes orange and/or red. Orange thioxanthenes paint is Marigold Orange D-315 from DayGlo Color Corporation. Color that is different from the fluorescent yellow, can be obtained by using different color matching. For example, a yellow-green color can be obtained with SIP is utilized benzoxanthenes paint Lumofast Yellow D-150" from DayGlo in the overlay layer and benzothiazinones paint "Huron Yellow D-417" from DayGlo in the sublayer. Other paint is "Lumogen F Orange 170" from BASF. You can also use fluorescent blue and green paint.

It is assumed that the inclusion of the UV absorbers of light in the composition of the layers can lead to delay or prevent degradation of a component of the fluorescent paint. In particular, it is assumed that appropriate benzotriazole, benzophenone and oxalanilide are absorbers of UV light, which can delay the dimming of fluorescent dyes to increase the longevity of fluorescence.

Benzotryazolyl absorbers of UV light is useful within systems of fluorescent dyed polycarbonate matrices, in particular in the overlay layer of the proposed multi-layer products. The UV absorbers of light, has good compatibility with benzothiazinone colors used in case, when such ink is embedded in the layer of polymer matrix. Examples of suitable benzotryazolyl UV light absorbers include 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol, supplied under the trade name "Tinuvin 234" by the company Ciba-Geigy, and 2-(4,6-diphenyl-1,3,5-triazine-2-yl)-5(hexyl)oxyfuel supplied by the company Ciba-Geigy as Tinuvin 1577".

Examples of industrial supply benzophenone UV light absorbers include 2-hydroxy-4-n-acetoxybenzoic supplied by the company Great Lakes Chemical Corporation under the trade the Oh mark "Lowilite 22", 2,2-dihydroxy-4,4-dimethoxybenzophenone supplied under the trademark Uvinul 3049" by BASF, and 2,2',2,4'-tetrahydroxybenzophenone supplied under the trademark Uvinul 3050" by BASF. Found that the UV absorbers of light, related to these types of benzophenone, specifically useful for fluorescent dyed acrylic matrix.

Example oxalanilide of the UV light absorber is 2-etil,2'-ethoxy-oxalanilide supplied under the trademark Sanduvor VSU" by the company Clariant. Issued and other oxalanilide absorbers of UV light. Specialists in the art will understand that there are many other absorbers of UV light, which may be suitable for use in the present invention.

Generally speaking, I found that to delay Tuscania fluorescent dyes useful locking amine light stabilizers of the type (BSAT). Oligomeric or polymeric compound BSAT having a molecular weight of about 1500 or more, provide enhanced durability fluorescence. The combination of UV light absorber and connections BSAT contributes further to prevent Tuscania color and increases the durability of the color. Specifically suitable connections BSAT are oligomeric locking connection amine type from the company Great Lakes Chemical, supplied under the trade mark "Lowlite 62", or "Tinuvin 722" from Ciba-Geigy.

Connection BSAT include: polydimethylsilane with 4-hydroxy-2,2,6,6-tetramethyl-1-piperazineethanol obtained industrially from a special company Ciba additives under the trade name "Tinuvin 622"; poly[[6-(1,1,3,3,-TETRAMETHYLBUTYL)amino]-s-triazine-2,4-diyl][[(2,2,6,6-tetramethyl-4-piperidyl)imino]hexamethylene[(2,2,6,6-tetramethyl-4-piperidyl) aminol]], industrial supplied by the company Ciba Specialty Additives under the trade name Chimassorb 944; "Tinuvin 791", supplied by the company Ciba Specialty Additives and represents a mixture of poly[[6-(1,1,3,3,-TETRAMETHYLBUTYL)amino]-s-triazine-2,4-diyl][[(2,2,6,6-tetramethyl-4-piperidyl)imino]hexamethylene[(2,2,6,6-tetramethyl-4-piperidyl) iminal]] and bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate; and "Hostavin N30"supplied by the company Clariant. Specialists in the art will understand that suitable for use in the present invention may be many other locking amine light stabilizers of the type.

When provided its presence, covering or sealing layer provides shielding of UV light to prevent polymer degradation of the polycarbonate when it contains the overlay layer. We are talking about the discoloration, turbidity, cracking or yellowing with the decrease in the brightness of the color of the polycarbonate. Covering or sealing layer can additionally increase durability a is here the fluorescence of the product due to the fact, that ensures the presence of a layer of shielding ultraviolet color and having a connection or connections, absorbing or absorbing ultraviolet light, introduced into this layer. In an alternative embodiment, sealing or covering layer may include a polymer, which itself is an absorber of ultraviolet light. Suitable in this context is polyarylate matrix, as described above.

In the invention proposed long-lasting fluorescent product with the desired colors. In a preferred specific arrangement of the two fluorescent films of different colors to form a durable fluorescent product. Each film contains a fluorescent dye and can contain optional additives that absorb UV light, inside the polymer matrix. The overlay layer is a colored fluorescent film having a color overstability fluorescence, and the underlayer is a colored fluorescent film of any satisfactory type. When they combine together, they provide the desired fluorescent color. Each color separately should not provide the desired fluorescent color. One of the reasons that the stability of the fluorescence sublayer should not be as pronounced as the stability of fluore is zenzie overlay layer, is that fluorescent colored film overlay layer itself acts as a screen for harmful UV light and a significant amount of visible colors, as shown in Fig.7 and 17.

With appropriate colors within a single polymer matrices eliminates any negative interaction, which otherwise would be expected due to the blending of two colors with each other. The combination of the overlay layer and sublayer in accordance with the invention provides a fluorescent product with excellent stability when exposed to light, the color, for example, fluorescent yellow, which is available to order, using fluorescent paint colors, supplied by the manufacturers of paints. Each individual film itself alone does not achieve these properties.

When for specific applications, for example, perfectly visible road index or warning signs required fluorescent yellow sheet material having the property of reflection in the opposite direction, in the preferred embodiment, this material combined two layers, none of which would be suitable by itself to obtain characters of this type. In this preferred specific embodiment, the overlay layer is particularly the polycarbonate or acrylic matrix, having benzothiazinone or benzoxanthenes paint, and the underlayer is an acrylic matrix with perilesional paint. When they are combined in a single product, it is very durable and properly painted product road sign with the desired color.

One of the advantages of using polycarbonate as an overlay layer for fluorescent yellow layered material is that it increases the overall resistance of the products to the shock when the substrate used acrylic polymer. Acrylic polymers are, as a rule, brittle polymers with very low resistance to shock. On the other hand, the polycarbonate polymer is very durable polymers with a high degree of resistance to shock. Through the use of polycarbonate as the overlay layer is achieved a very high degree of strength and durability of the obtained fluorescent layered material to shock.

In addition, when the present invention is used to create fluorescent microprismatic sheet material shown in figure 1, one advantage of using an acrylic polymer as a substrate is that acrylic polymers have a lower glass transition temperature than the other polymers, such the AK polycarbonate. Therefore, in acrylic sublayer can be easier to form microprismatic elements.

The thickness of the overlay layer 22, the underlayer 23 and the sealing layer 25 (if provided) may undergo some changes depending on the specific product that you should take. Typically, the overlay layer will have a thickness in the range between about 2 mils and about 20 mils (0.05 to 0.5 mm), and in the more common case is between about 3 mils and about 10 mils (from of 0.075 to 0.25 mm). Typical sublayer will have a thickness in the range between about 2 mils and about 20 mils (0.05 to 0.5 mm), and in the more common case is between about 3 mils and about 10 mils (from of 0.075 to 0.25 mm). When provided a sealing layer, its thickness is in the range between about 1 mil and about 10 mils (0.025 to 0.25 mm), and in the more common case is between about 2 mils and about 5 mils (0.05 to 0.125 mm), and typically is in the range between about 2 mils and about 4 mils (0.05 to 0,100 mm).

The following examples are included for purposes of illustration and explanation. The film used in these examples were produced using a laboratory screw Killion extruder with three heating zones or using a Brabender mixer. To install with a single screw extruder was extrudible mixture of these polymer clay is different resins, these colors and other additives, such as light to UV light and/or BSAT, obtaining a film thickness of about 6 mils (0.15 mm). For example, a zone of elevated temperature to obtain a film with a matrix of acrylic resin was 490, 460 and 440°F. a zone of elevated temperature to obtain a polycarbonate film, as a rule, was 530, 540 and 560°F. the rotation Speed of the screw of the extruder was 27 rpm When using this mixer was the unit Plasti-Corder Prep-Mixer company C.W. Brabender Instruments, Inc. Material prepared by mixing in a state of melt polymer resins and other components, and then transformed to a film thickness of approximately 6 mils (0.150 mm). Mixing temperature was in the range of between about 220°and about 270°C, depending on the particular polymer resin, and the speed of mixing was 100 rpm during the time of mixing, were in the range between about 3 and about 6 minutes. Different film, thus obtained, was layered on each other at a temperature of about 185°with the unit Hot Roll Laminator M from the firm Cheminstruments.

Example 1

Received film overlay layer with polymetylmetacrylate matrix by mixing acrylic resin (Acrylite Plus ZK-V-001E, trade designation product company Cyro) and 0.8 mass percent is and benzoxanthenes fluorescent paint (Lumofast Yellow D-150, trade designation product company DayGlo) with 1.0 mass% of UV light absorber (Lowlite 22, vending product designation company Great Lakes Chemical) and 0.5 mass percent BSAT (Lowlite 62, trade designation product company Great Lakes Chemical). This single layer of polymethylmethacrylate (PMMA) is called the sample 1-1.

Got a film substrate with a polycarbonate matrix by mixing the polycarbonate resin (Calibre 303EP, trade designation product of Dow Chemical) with 0.06 mass percent of benzothiazinones fluorescent paint (Huron Yellow D-417, trade designation product company DayGlo). This single-layer polycarbonate (PC) film called sample 1-2-1. Sample 1-2-2 was layered material multilayer film consisting of sample 1-1 to sample 1-2-1.

Another PC film substrate received from the same polycarbonate resin as in the sample 1-2-1, from 0.05 weight percent of the fluorescent paint Huron Yellow D-417 and 1.5 weight percent of the UV light absorber (Tinuvin 1577, trade designation product company Ciba Geigy). This film was called sample 1-3-1. Example 1-3-2 was a multilayer film consisting of sample 1-1, layered on sample 1-3-1.

Additional PC film substrate received from the same polycarbonate resin, this time combined with a 0.05 weight percent of the fluorescent paint Huron Yellow D-417 and 1 mass% of the UV light absorber Tinuvin 1577 and 0.3 mass is the first percentage of a component BSAT (Tinuvin 622, trade designation product company Ciba Geigy). This film was a model of 1-4-1. Example 1-4-2 was a multilayer film of PMMA sample 1-1, layered on the film sample 1-4-1.

Got another PC film. It consisted of a polycarbonate resin (Calibre-302, trade designation product of Dow Chemical), and 0.08 mass% Huron Yellow D-417 and 0.3 mass% of a component BSAT (Tinuvin 622). It was a sample 1-5-1. Sample 1-5-2 was the juxtaposition of sample 1-1 films on the sample 1-5-1 film.

Each of the five single-layer films, symbols are shown above, and each of the four two-layer film obtained by layering, were subjected to accelerated testing under atmospheric conditions. Each sample was placed in an atmospheric chamber accelerated exposure with a xenon arc and operatively controlled parameter Tuscania through the normal color measurements on the HunterLab colorimeter LS-600. Were used in the instrument light source D65, viewing angle 2° and geometrical configuration 0/45, and all color measurements were recorded according to the standard color coordinate system of the ice-1931. To determine the extent of Tuscany and color shifts were determined by the degree ΔE*the color shift from time artificial atmospheric conditions. Small value of the color change is a Δ E*for example, the color shift ΔE*approximately 2-3 units, barely visible to the human eye. The test methodology used in the atmospheric chamber with xenon arc presented in the ASTM G-26-90, section 1.3.1. Used borosilicate inner and outer filters, and exposure was set equal to 0.35 W/m2at a wavelength of 340 nm.

The obtained results were recorded in accordance with the color difference, appropriate laboratory technique of the ice, measuring ΔE*. For certain one-layer and two-layer films was determined values ΔE*at three different time periods of accelerated atmospheric conditions, namely, 500 hours, 1000 hours and 1500 hours. These data are presented in table I.

Table I
SampleThe film structureΔE*samples at the specified period of time (hours)
50010001500
1-1Single layer PMMA film23,0421,4521,63
1-2-1Single-layer PC film9,89of 12.2611,96
1-2-2Two-layer PMMA/PC film3,362,484,89
1-3-1Single-layer PC film8,04a 10.7412,64
1-3-2Two-layer PMMA/PC film4,513,906,89
1-4-1Single-layer PC film5,278,765,62
1-4-2Two-layer PMMA/PC film5,034,05to 7.84
1-5-1Single-layer PC film4,5411,4811,47
1-5-2Two-layer PMMA/PC film2,773,003,99

The data of table I show that the observed large color shifts for single-layer film components. Two-layer film showed increased durability fluorescent properties compared to separately apply the single-layer films. This can be seen in Fig, where we plot the dependence of the values ΔE*from the time of accelerated atmospheric conditions for single-layer PC film 1-2-1 and for two-layer PMMA/PC film 1-2-2. Graph of the same type are presented in Fig.9 for single-layer PC p is Enki 1-3-1 and for two-layer PMMA/PC film 1-3-2. Figure 10, we plot the data of table I for a single-layer PC film 1-4-1 and for two-layer PMMA/PC film 1-4-2. Figure 11, we plot the data of the influence of atmospheric conditions for single-layer PC film 1-5-1 and for two-layer PMMA/PC film 1-5-2, and the influence of atmospheric conditions on the last film was minimal. These data demonstrate the durability of fluorescence and color, significantly increasing when using the approach, determining existence of the multilayer film, in comparison with the values ΔE*multilayer film structure in the case of a single-layer film components.

Example 2

Received the single-layer matrix polymetylmetacrylate film by combining an acrylic resin, namely, Acrylite Plus ZK-V-001E - trade designation product company Cyro, having included to 0.8 mass percent fluorescent paint Lumofast Yellow 3G from the company DayGlo. This mixture is called the sample 2-1. Received a single-layer film of polycarbonate matrix tablets Calibre 303EP from Dow Chemical from 0.05 mass% Huron Yellow D-417 and 1.5 weight percent of a UV absorber colors, Tinuvin 1577 (this is a trade designation of the firm's product DayGlo). This film was called sample 2-2. Sample 2-3 was two-layer PMMA/AK film sample 2-1, layered on sample 2-2.

Conducted testing to determine the color and "Y%" for these t the ex film specimens. These data are presented in table II.

Table II
SampleThe film structure"x""y"Y%
2-1Single layer PMMA film0,37060,503494,15
2-2Single-layer PC film0,42200,505082,53
2-3Two-layer PMMA/PC film0,41520,525489,62

To compare these films with the color standard used and recognized in the art, use of the proposed MCO coordinates "x" and "y" chromaticity color. These films can be compared with the films target fluorescent yellow-green color that meet the color requirements of the industry. These color coordinates for the fluorescent yellow-green color are: (0,387, 0,610), (0,460, 0,540), (0,421, 0,486) and (0,368, 0,539).

Figure 5 presents a graph palette of fluorescent yellow-green color that matches the requirements of the industry, which are determined by these color coordinates "x" and "y", noted above. Film showing the chromaticity coordinates ("x" and "y") within this particular PAL is the format, can be considered acceptable in the General case.

Coordinate "Y%" is the third dimension, which can be visualized as projected upward from two dimensions two-dimensional palette, shown in figure 5. In the General case, a larger value of "Y%" indicates a greater degree of fluorescence and, therefore, of greater durability in the context of this description. The value "Y%" is the total reflectance. It is a standard measure of the amount of light (the power of electromagnetic radiation that is visually detected in the normal human observer)emitted from the surface and carried with amendment on the efficacy of view, to convert the readings of light in the integral luminous sensitivity. The mentioned value is defined as the ratio of the total brightness of the sample to the total brightness of an ideal diffuser, illuminated and observed under the same conditions.

From figure 5 it is obvious that a single layer of PMMA film was not included in the scope of the coordinate "x" and "y" palette of fluorescent yellow-green color, and a single-layer PC film gives an edge line within the coordinates of this palette. It was unexpectedly found that a two-layer film consisting of these two films that have unacceptable or borderline-acceptable coordinates "x" and "y", turned out to be a two-layer film, is much more suitable to the text of target coordinates "x" and "y". Interestingly, the value "x" is not simply the arithmetic mean of the values "x" of the two films that make up the two-layer film. Even more unexpected was the fact that the value "y" of the resulting film is larger than the value "y" for any single film, which is critical for maintaining color within the desired color palette during exposure to atmospheric conditions. For example, in the case of single-layer PC film even small color shift under the influence of atmospheric conditions will color this film beyond the desired color palette.

As for the parameter "Y%", then double-layer film provides Tuscania fluorescent yellow-green color, characterized by favorable values. Note that the value of "Y%" two-layer film is larger than the arithmetic mean of the two values "Y%" for individual films.

Example 3

The film according to example 2 was converted to sheet material a road sign that has the property of reflection in the opposite direction, through the use of well-known way of stamping obtaining the structure shown in General form in figure 1. During this process, the embossing was formed and embedded in the back surface of the fluorescent film set microprismatic elements of the vertices of the cube. Then got ready leaf the second material, having the property of reflection in the opposite direction, by bonding the film to the substrate with an embossed film in the form of a repeating pattern of cells. The values of the color coordinates ("x", "y") and reflectance ("Y%") of the finished sheet material having the property of reflection in the opposite direction, are shown in table III. For comparison, the values "x", "y" and "Y%" for industrial supply fluorescent yellow-green products. In this respect, particularly interesting is the value of "Y%" for two-color two-layer PMMA/PC product. His "Y%" more than any painted film that this product contains, and it is closer to the corresponding parameters of industrial products than to the same parameters of the individual films.

td align="center"> 85,95
Table III
The type of sheet material having the property of reflection in the opposite direction"x""y"Y%
Fluorescent yellow-green material Avery Dennison, T-75130,40760,564192,94
Fluorescent yellow-green material 3M 39830,40690,570495,28
Monochrome PMMA film0,34040,5260
Monochrome PC film0,43020,541783,9
Two-color two-layer PMMA/PC film0,40670,543389,75

The values "x" and "y" in accordance with table III are displayed in the form of schedule 6 in respect of the same industrial standard palette of fluorescent yellow-green color, as in figure 5. Coordinates do not compare products figure 6 are somewhat different from the coordinates for similar films shown on figure 5. This illustrates the expected difference between the coordinates shown the original films and those films, which are converted into sheet material for road signs that have the property to reflect in the opposite direction. As can be seen from tables III and 6, two-tone two-layer product corresponding to the invention has the chroma and "Y%", similar to those that have existing products that can be considered as a reference when trying to create a product of this type. None of the single-layer products, which is made up of a two-ply product, separately would be appropriate to create a fluorescent yellow-green sheet of material having the property of reflection in the opposite direction to the desired coordinate colors and "Y%". Zwetna the TB sheet materials, having the property of reflection in the opposite direction and obtained from one of these single fluorescent yellow-green PMMA layers or PC layers, far from Venosta products derived from these layers and having chromaticity, which is a desirable goal for this kind of products.

Example 4

Received two single-layer film using the same fluorescent dye, namely to 0.06 weight percent Huron Yellow D-417. One of the polymer matrix was polycarbonate - Calibre 303-EP, and another polymer was acrylic matrix, obtained from the resin Acrylite Plus ZK-V-001E from the company Cyro. Colored polymethylmethacrylate showed increased Tuscania just over 200 hours of accelerated exposure to atmospheric conditions, the value of ΔE*was 36,70, indicating that the stability of the fluorescent dye when exposed to light in the acrylic matrix of host was very low. In contrast to this result is the same benzothiazinone paint showed much better stability when exposed to light in the polycarbonate resin, indicating that this resin is a suitable "host" for this fluorescent paint. At around 200 hours of accelerated aging is ΔE*amounted to 2.55. At around 500 hours, it was 9,89, and at around 1000 hours is ΔE*for polycarbonate plait the key was of 12.26.

Example 5

Received polymetylmetacrylate film thickness of 6 mils. It consisted of 0.8 mass% paint Lumofast Yellow D-150, and 1.0 mass% of a UV absorber of the light - Lowlite 22 - and 0.5 mass% of a component BSAT - Lowlite 62. Recorded data light transmittance. They are presented graphically figure 7 in the form of a curve of light transmission. It is noticeable that almost all of the light at wavelengths of less than 460 nm blocked this film due to the presence of paint and UV light absorber. This example shows that the fluorescent yellow-green PMMA film is a reliable light screen for other fluorescent dyed films that illustrate the effectiveness of this film as an overlay layer in accordance with the invention.

Example 6

Received fluorescent yellow-green film overlay layer with the same composition as sample 1-1 in example 1. This polymetylmetacrylate film called sample 4-1. Fluorescent orange PMMA film substrate was obtained by mixing pills acrylic resin (Atohaas V045, trade designation product company Atohaas) with orange fluorescent thioxanthenes paint, namely with 0.25 weight percent Marigold Orange D-314 (trade designation product company DayGlo), 1 mass% of the UV light absorber is Tinuvin 234 and 0.5 mass% of another absorber UV light - Tinuin T-144. This film was called sample 4-2-1. Received a two-ply product by layering the film sample 4-1 on the film sample 4-2-1. The resulting film was called sample 4-2-2.

Another fluorescent orange film substrate received in the PMMA matrix. Acrylic resin was Plexiglas PSR-9 (trade designation product company Atofina), mixed with perylenediimide fluorescent dyes from BASF, namely to 0.2 mass% Lumogen Orange 240 and 0.025 mass% Lumogen F Red 300. This film is called the sample 4-3-1. Two-layer film was obtained by stratifying the overlay layer of the sample 4-1 on the sublayer sample 4-3-1. This film was called sample 4-3-2.

Each of these single-layer films and both a double-layered product was subjected to accelerated aging in General accordance with example 1. The results are shown in table IV.

Table IV
SampleThe film structureΔE*samples at the specified period of time (hours)
50010001500
4-1A single layer of fluorescent yellow-green (FIS) PMMA film23,0421,4521,63
4-2-1Single-layer fluorescent orange (FO) p is a child, containing resin VO-4525,431,3236,94
4-2-2Two-layer FGS PMMA/PC film comprising the resin VO-4510,0622,3324,38
4-3-1Single-layer FD film comprising the resin PSR-95,7911,8225,75
4-3-2Two-layer FGS PMMA/PC film comprising the resin PSR-93,23of 2.51of 6.71

Data analysis ΔE*resulting from this test in the atmospheric chamber with xenon arc for single-layer FGS PMMA film, gave the corresponding significantly worse results. Single-layer sample 4-2-1 turned out to be bad according to its structure, and the single-layer sample 4-3-1 could not withstand prolonged exposure to atmospheric conditions. However, both two-layer product gave the best results, and specifically has been effective sample 4-3-2. On Fig shows a graph of the results of table IV for the two samples containing FD film comprising the resin VO-45. On Fig graph of these results is built for products containing FD film comprising the resin PSR-9.

Example 7

The results of accelerated testing atmospheric conditions received by us is Oronogo testing two different two-layer thin film structures on the atmospheric conditions in the QUV device. QUV - a device for accelerated testing atmospheric conditions, in which samples of polymers exposed to UV light. Light bulbs used in the test to be emitting light at a wavelength of 340 nm. Test conditions were based on the standard ASTM G 53-88.

One of the film structures consisted of a two-layer PMMA/PC product, namely the sample 1-3-2 example 1. The other was a sample 4-3-2 example 6, i.e. a two-ply product containing FIS PMMA film and FD film comprising the resin PSR-9. The test results on the atmospheric conditions have been very good. Sample 1-3-2 gave testimony ΔE*amounting 0,83 at around 200 hours of accelerated exposure, reading ΔE*that amounted to 1.63 at around 1500 hours, and the reading ΔE*amounting 3,23 at around 3000 hours. Reading ΔE*for products based on the sample 4-3-2 amounted to 1.27 at around 200 hours. At around 1500 hours reading ΔE*3.8, and at around 3000 hours reading ΔE*amounted to 3.56. All these indications suggest excellent durability when exposed to light.

Example 8

Received fluorescent yellow sheet material having multiple layers of films. The overlay layer, not only is l an acrylic matrix, consisting of Acrylite Plus ZK-V-001E from the company Cyro, to 0.8 mass percent Lumofast Yellow D150 from the company DayGlo, 1 weight percent of the UV light absorber and 0.5 mass% of a component BSAT. The sublayer was an acrylic matrix, consisting of Acrylite Plus Exp-140 from company Cyro and 0.3 mass% Lumogen F Orange 240 (Pereladova paint from BASF). If it were desired, added the UV light absorbers selected from such as Lowilite 22, Tinuvin 234 and Tinuvin P. If necessary, it was also possible to add component BSAT selected from such as Lowilite 62 and Tinuvin 770.

Example 9

Got another fluorescent yellow sheet material having multiple layers of films. The overlay layer was an acrylic matrix, consisting of Acrylite Plus EXP-140 from company Cyro and 0.16 weight percent Lumogen F Orange 240 from BASF. The sublayer was an acrylic matrix, consisting of Acrylite Plus EXP-140 from company Cyro and 0.3 mass% Lumogen F Yellow from BASF. If it were desired, added the UV light absorbers selected from such as Tinuvin 234, Tinuvin P, Uvinul 3049 and Lowilite 22. If necessary, it was also possible to add component BSAT, which, as a rule, was such as Lowilite 62, Tinuvin 770 and Tinuvin 622.

Example 10

Received fluorescent yellow sheet material having multiple layers of films. The overlay layer was represented by a matrix polymer mixture, astavrou of the U-Polymer U-6000 from Unitika company, Japan and 0.8 mass% Lumofast Yellow 3G from the company DayGlo. The addition of UV light absorber is not required. The sublayer was a polycarbonate matrix consisting of polycarbonate and 0.05 % Huron Yellow D-417. The addition of UV light absorber is not required.

Example 11

Received fluorescent yellow film overlay layer polycarbonate matrix by mixing pellets of polycarbonate (Makrolon 3108, trade designation product from Bayer), and 0.09 weight percent benzothiazinones fluorescent paint (Huron Yellow D-417, trade designation product company DayGlo) together with 1.5 mass percent benzotryazolyl of the UV light absorber (Tinuvin 1577, trade designation product company Ciba Geigy). This single-layer PC called sample 5-1.

Received fluorescent orange polymetylmetacrylate film substrate by mixing acrylic resin (PSR-9, trade designation product company Autofina) c 0,175 mass percent perilesional fluorescent dye (Lumogen F Orange 240, trade designation product of BASF). This single-layer PC called sample 5-2-1. Sample 5-2-2 was layered material multilayer film consisting of sample 5-1 on the sample 5-2-1.

Another fluorescent orange PMMA film sublayer received from the same acrylic resin as in the sample 5-2-1, together with 0,136 weight percent of the fluorescent dye Lumogen F Orange 240 ,0025 mass% Lumogen F Red 300 (trade designation prelinking paint from BASF). This film was called sample 5-3-1. Sample 5-3-2 was a multilayer film consisting of sample 5-1, layered on sample 5-3-1.

Conducted testing to determine the color and "Y%" for these five samples of the films. The results are shown in table V.

Table V
SampleThe film structure"x""y"Y%
5-1Single-layer FGS PC film0,43520,520587,17
5-2-1Single-layer FD acrylic film0,48060,418371,80
5-2-2The film obtained by layering samples 5-1 and 5-2-10,51180,468564,35
5-3-1Single-layer FD acrylic film0,48220,409669,52
5-3-2The film obtained by layering samples 5-1 and 5-3-10,51650,468963,73

To compare these films with the color standard used and recognized in the art, use of the proposed MCO coordinates "x" and "y" chromaticity color. These films can be compared with the films target fluorescently what about the yellow-green color, which meet the requirements of the color set by the industry. These color coordinates for the fluorescent yellow color are: (0,479, 0,520), (0,466, 0,483), (0,512, 0,421) and (0,557, 0,422). Limitations the color of the technical characteristics defined in the Bulletin of the final decisions of the Federal office of roads (FHWA) of the United States for July 2002, published in the U.S. Federal register, volume 67, No. 147, S. 49569.

On Fig presents a graph palette fluorescent yellow color, satisfying the requirements of industry, which are determined by these color coordinates "x" and "y", noted above. Film showing the chromaticity coordinates ("x" and "y") within this particular palette, can be regarded as generally acceptable.

Coordinate "Y%" is the third dimension, which can be visualized as projected upward from two dimensions two-dimensional palette, shown in Fig. In General, a larger value of "Y%" indicates a greater degree of fluorescence and, therefore, of greater durability in the context of this description. The value "Y%" is the total reflectance, as described above.

From Fig it is obvious that a single-layer PC film and a single layer of acrylic films were not included in the scope of the coordinate "x" and "y" palette fluorescent yellow flowers. This graph clearly illustrates that the factor is, that the desired fluorescent yellow color was achieved by using two combinations of fluorescent yellow-green film and fluorescent orange or orange-red film. It was unexpectedly found that both two-layer film consisting of these single film having unacceptable coordinates "x" and "y", turned out to be two films, much more appropriate in the context of the target coordinates "x" and "y". Interestingly, the value of "x" for each of the appropriate films is not simply the arithmetic mean of the values "x" of the two films, of which this film is.

Example 12

The matrix of a single layer of yellow-green polymetylmetacrylate films were obtained by combining an acrylic resin, namely tablets resin PSR-9, having introduced her to 0.6 mass percent Lumofast Yellow D-150 - benzoxanthene fluorescent paint from the company DayGlo. The resulting film was called sample 6-1. Another film of PMMA matrix, which is fluorescent orange acrylic film was obtained from the PSR-9 with the addition of prelinking paints - 0,123 mass% Lumogen F Orange 240 and 0.005 mass% Lumogen F Red 300. This film was called sample 6-2. Example 6-3 was two-layer PMMA/PMMA film, consisting of sample 6-1, layered on sample 6-2.

Conducted testing to determine the chromaticity and Y%for these three sample films. These are the data presented in table VI and in the form of a graph on Fig.

Table VI
SampleThe film structureCoordinates color
"x""y"Y%
6-1Single-layer FGS acrylic film0,36250,492692,15
6-2Single-layer FD acrylic film0,48550,404466,53
6-3The film obtained by layering samples 6-1 and 6-20,49510,455765,55

To compare these films with the color standard used and recognized in the art, use of the proposed MCO coordinates "x" and "y" chromaticity colors specified in example 12. From these data it is evident that each of the two-layer PMMA films was not included in the scope of the coordinate "x" and "y" palette of fluorescent yellow and dvojplotna the combination of these PMMA films clearly fell within these coordinates. It was unexpectedly found that the value of "x" PMMA/PMMA film is not simply the arithmetic mean of the values "x" of two separate films, of which this film is.

Example 13

Two-layer film according to example 11 and example 12 transformed razbivali intended for road signs sheet material, having the property of reflection in the opposite direction, through the use of well-known way of stamping obtaining the structure shown in General form in figure 1. During this process, the embossing was formed and embedded in the back surface of the fluorescent film set microprismatic elements of the vertices of the cube. Then got ready sheet material having the property of reflection in the opposite direction, by bonding the film to the substrate with an embossed film in the form of a repeating pattern of cells.

The values of the color coordinates ("x", "y") and reflectance ("Y%") of the finished sheet material having the property of reflection in the opposite direction, are shown in table VII and presented graphically on Fig. Example 7-1 is this sheet material having the property of reflection in the opposite direction and consisting of PC/PMMA film sample 5-2-2. Sample 7-2 consists of PC/PMMA film sample 5-3-2. Sample 7-3 consists of PMMA/PMMA film.

Table VII
SampleThe type of sheet material having the property of reflection in the opposite direction"x""y"Y%
7-1The finished sheet mother is l, having the property of reflection in the opposite direction, on the basis of the film sample 5-2-20,52060,471876,28
7-2The finished sheet material having the property of reflection in the opposite direction, on the basis of the film sample 5-3-20,52800,464476,29
7-3The finished sheet material having the property of reflection in the opposite direction, on the basis of the film of sample 5-30,52050,445473,00

The values "x" and "y" in accordance with table VII displayed as a graph on Fig in connection with the same industry standard palette of fluorescent yellow-green flowers that Fig and 15. Coordinates unambiguously show that the sheet material having the property of reflection in the opposite direction, with the desired fluorescent yellow color is achieved by using each of the two obtained by layering films having the property of reflection in the opposite direction and corresponding to this example.

Example 14

This example illustrates the durability of fluorescent yellow sheet material having the property of reflection in the opposite direction, obtained in accordance with example 13, in which the overlay layer is fluores entry yellow-green polycarbonate. The sublayer was a fluorescent orange acrylic film. Sample 8-1 is an example 7-2 sheet material having the property of reflection in the opposite direction, with a sealing layer added on top of the fluorescent yellow-green polycarbonate. The sealing layer used in this example was acrylic film thickness of 3 mils, supplied by Mitsubishi Rayon Corporation under the trademark "HBL-002".

Sample 8-1 subjected to accelerated exposure to atmospheric conditions. It was placed in the atmospheric chamber accelerated exposure with a xenon arc and operatively controlled parameter Tuscania through the normal color measurements on the HunterLab colorimeter LS-600, configuration 0/45. The results were recorded in accordance with the color difference, appropriate laboratory technique of the ice, measuring ΔE*and comparing the original color readings taken before the accelerated atmospheric conditions, and indications color after some time of exposure to atmospheric conditions. The obtained parameter ΔE*is the usual measure of color change. The less ΔE*the less color change and greater durability. The results of this test on the effect of accelerated agingare summarized in table VIII. The results of damage to the Oia atmospheric conditions, in table VIII, show that the resulting fluorescent sheet material having the property of reflection in the opposite direction, has very good durability.

Table VIII
SampleThe film structureΔE*samples at the specified period of time (hours)
50010001500
8-1PC/PMMA film with a sealing layer HBL-0024.26 deaths4,076,94

Example 15

Received polycarbonate film. It contained the fluorescent yellow-green dye. Recorded data light transmittance. They are represented graphically on Fig in the form of a curve of light transmission. It is noticeable that the fluorescent yellow-green dye absorbs light at wavelengths up to 510 nm. Thus, it shields UV light (limited to the range from 280 to 380 nm) and a significant proportion of visible light (limited to the range from 380 to 780 nm). This example shows that the fluorescent yellow-green film overlay layer is a reliable light screen for other fluorescent colored films, including those that are within a sublayer that Illus which demonstrates the effectiveness of this film as an overlay layer in accordance with the invention. It also shows that the preferred additional feature of the shielding characteristic of the overlay layer of this type, provides the introduction to the sublayer of many fluorescent dyes, which otherwise would have been relatively unstable from the point of view of durability of the color.

It should be clear that the specific embodiments of the present invention, described above, are in the nature of some illustrations of the application of the principles of the present invention. Experts in the art may make numerous changes within the essence and scope of the claims of the invention.

1. Sheet article containing a sheet of colored fluorescent film substrate containing at least one first fluorescent dye within the polymer matrix of the sublayer, and mentioned polymeric matrix substrate has a polymer structure selected from the group consisting of acrylic resin, polystyrene, polyvinyl chloride, complex polyester, polyarylate, copolymer of styrene and Acrylonitrile, polyurethane, while the aforementioned at least one first fluorescent dye has a concentration of from about 0.001 to about 1.5 wt.%, based on the total weight of the polymer matrix substrate, a sheet of colored fluorescent film overlay layer having at least odnovery fluorescent dye within the polymer matrix of the overlay layer, which has a polymeric structure, with the aforementioned at least one second fluorescent dye has a concentration of from about 0.001 to about 1.5 wt.%, based on the total weight of the polymer matrix of the overlay layer, and mentioned colored fluorescent film overlay layer has the best stability of fluorescent light than said colored film sublayer, while the above-mentioned sheet colored fluorescent film overlay layer in the product is over the said sheet is colored fluorescent film substrate, and the sheet product has a selected fluorescent coloration that is different from the color of the above-mentioned sheet colored fluorescent film overlay layer, and the painting mentioned sheet colored fluorescent film sublayer.

2. The product according to claim 1, in which the aforementioned polymer matrix substrate has a polymer structure of the acrylic resin and the aforementioned polymer matrix overlay layer has a polymeric structure of polycarbonate or acrylic resin and the above-mentioned first fluorescent dye and the second fluorescent dye is different.

3. The product according to claim 1, whereby the said product has a fluorescent yellow color referred polymeric matrix substrate is a plate made of acrylic resin and having Fluor is scannow orange color film, at least one perilesional paint in the above-mentioned polymeric matrix substrate, referred to the polymer matrix of the overlay layer is a sheet made of polycarbonate and having a fluorescent yellow-green film with at least one of benzothiazinones paint in the above-mentioned polymeric matrix overlay layer.

4. The product according to claim 1, in which the aforementioned polymer matrix overlay layer has a polymer structure selected from the group consisting of polycarbonate, acrylic resin, polyarylate resin, and combinations thereof and copolymers.

5. The product according to claim 1, in which the aforementioned polymer matrix overlay layer has a polymer structure selected from the group consisting of polycarbonate, acrylic resin, and combinations thereof and copolymers.

6. The product according to claim 1, in which the aforementioned polymer matrix overlay layer is formed from polycarbonate.

7. The product according to claim 1, in which the mentioned selected fluorescent coloration products selected from the group consisting of fluorescent yellow, fluorescent yellow-green, fluorescent orange, fluorescent red, fluorescent blue and fluorescent green, provide a paint selected from the group consisting of benzoxanthenes, benzothiazines, perylenes, perylenediimides, complex Pereladova esters of thioxanthenes, thioindigo and their combinations.

8. The product according to claim 1, in which the mentioned selected fluorescent coloration of the product is fluorescent yellow.

9. Product according to any one of claims 1 to 3, which referred to the selected fluorescent coloration of the product is fluorescent yellow, with chromaticity coordinates, "x" and "y"that are restricted to the following chromaticity coordinates, "x" and "y": (x=0,479, y=0,520), (x=0,466, y=0,483), (x=0,512, y=0,421) and (x=0,557, y=0,422).

10. Product according to any one of claims 1 to 8, in which the aforementioned colored fluorescent film overlay layer has the properties of shielding ultraviolet (UV) and visible light.

11. Product according to any one of claims 1 to 8, in which the aforementioned colored fluorescent film overlay layer, essentially blocking light having a wavelength of from about 250 to about 520 nm.

12. Product according to any one of claims 1 to 8, in which the aforementioned colored fluorescent film overlay layer, essentially blocking light having a wavelength from about 280 to about 450 nm.

13. Product according to any one of claims 1 to 8, in which the above-mentioned second fluorescent ink has a greater "Y%" is the ratio of the brightness in the daytime than said first paint.

14. The product according to claim 1 or 2, in which said film overlay layer is made of acrylic resin and less fragile than said film under the Loya, which is made from polycarbonate, and the product is more resistant to shock than said underlayer.

15. Product according to any one of claims 1 to 8, which includes elements that have the property to reflect in the opposite direction.

16. The product is indicated in paragraph 15, in which the said sheet substrate is located between the said sheet overlay layer and the above-mentioned elements, with the property that the reflections in the opposite direction so that the incident light passes through the said sheet overlay layer, and then passes in the above-mentioned underlayer, and then meets with the mentioned elements having the property of reflection in the opposite direction, and is reflected in the opposite direction in the above-mentioned sheet painted film substrate and passes through the said sheet painted film overlay layer and out of the product.

17. The product is indicated in paragraph 15, in which the said elements having the property of reflection in the opposite direction, embedded in said sheet film sublayer.

18. Product by 17 in which the said elements having the property of reflection in the opposite direction, are microprismatic elements.

19. The product according to clause 16, in which the said elements having the property of reflection in the opposite direction, are making possible the creation of the design, the products, having the property of reflection in the opposite direction, with encapsulated lens.

20. The product according to clause 16, in which the said elements having the property of reflection in the opposite direction, are making possible the creation of structures that have the property to reflect in the opposite direction, with closed lens.

21. The product is indicated in paragraph 15, which is a sign, suitable for use outdoors, at least for three years.

22. The product is indicated in paragraph 15, further comprising a polymer film sealing layer, laid over the said sheet is colored fluorescent film overlay layer, and the above-mentioned product is a sign, suitable for use outdoors, at least for three years, and the film sheet overlay layer and the sheet film sublayer together to provide a yellow color within the palette limited to the following chromaticity coordinates, "x" and "y": (x=0,479, y=0,520), (x=0,466, y=0,483), (x=0,512, y=0,421) and (x=0,557, y=0,422).

23. The product according to claim 1 or 2, in which the aforementioned fluorescent paint overlay layer contains at least one benzoxanthenes paint at least one benzothiazinone paint, or a combination of both.

24. The product according to claim 1, in which the aforementioned polymer matrix of the sublayer submitted is an acrylic resin, fluorescent paint mentioned sheet film substrate contains at least one perilesional paint mentioned matrix overlay layer is a polycarbonate resin, and the fluorescent paint film sheet overlay layer contains at least one benzothiazinone paint.

25. The product according to claim 1, in which the aforementioned polymer matrix substrate is an acrylic resin, a fluorescent dye of the above-mentioned sheet film substrate contains at least one perilesional paint mentioned matrix overlay layer is an acrylic resin, and the fluorescent paint film sheet overlay layer contains at least one benzoxanthenes paint.

26. Product according to any one of claims 1 to 8, 16-22 or 24-25, further comprising a polymer film sealing layer, laid over the said colored fluorescent film overlay layer, and mentioned sealing layer is selected from the group consisting of acrylic resin, polyarylate, as well as their combinations.

27. Product according to any one of claims 1 to 8, which, once exposed to atmospheric conditions outdoors, has a value of ΔE*, which is significantly less than the same value for either of the above-mentioned sheet film sublayer, or for providing Otago film sheet overlay layer.

28. The product according to claim 1, which is a yellow fluorescent product, which mentioned polymeric matrix substrate is an acrylic resin mentioned first fluorescent dye contains at least one perilesional paint mentioned matrix overlay layer is a polycarbonate, and the aforementioned fluorescent dye contains at least one benzothiazinone paint.

29. Product according to any one of claims 1 to 8, further comprising light selected from the group consisting of a UV light absorber component of the locking sitosterolemia amine type (BSCAT) and combinations thereof, and the said light is present either in one of the mentioned film sheet substrate and said film sheet overlay layer, or both.

30. Product according to any one of claims 1 to 8, in which is mentioned the first fluorescent dye is different from the second fluorescent ink.

31. Product according to any one of claims 1 to 8, in which each of the above-mentioned sheet colored fluorescent film substrate and sheet of colored fluorescent film overlay layer separately unsuitable to meet the requirements of durability when exposed to UV light and good color for characters used outdoors and having upomyanuto the selected fluorescent coloration, as mentioned product conforms to the above requirements and standards.

32. The product according to claim 1 or 2, in which the aforementioned fluorescent paint underlayer contains at least one perilesional paint.

33. Product by p, in which said film sealing layer is a film made of acrylic resin.

34. Product by p, in which said film sealing layer is a film made of polyarylate resin.

35. Product by p, in which the aforementioned fluorescent paint overlay layer selected from the group consisting of at least one benzoxanthenes paint, at least one of benzothiazinones paint, as well as their combinations.

36. Product by p, in which the aforementioned fluorescent paint sublayer represents at least one perilesional paint.

37. The product p, in which the polymeric film sealing layer contains a polymer resin, and mentioned polymer resin contains at least one polymer or mixture of polymers selected from the group consisting of: (i) polymers having a main chain of a polymer containing the following recurring part As:

where R is not interfering with the Deputy, and R is the remainder of the polymer, these polymers are able to absorb ult is fioletowy light, (ii) polymers having a main chain of a polymer containing the following recurring part In:

where R is not interfering with the Deputy, and R is the remainder of the polymer, and referred to part b is transformed in part a by photopresspro, resulting in the above-mentioned polymer containing part can be transformed into a polymer that absorbs ultraviolet light and containing part of A.

38. The product according to clause 37, in which the mentioned sealing layer contains polyarylate resin.

39. The product according to 38, in which polyarylate resin contains at least one polymer selected from the group consisting of polyarylate polymers containing one of the following repeating structures I and II or both:

40. The product according to clause 37, in which the sealing layer contains a mixture of polyacrylate and at least one additional polymer.

41. Product by p, in which said additional polymer selected from the group consisting of polycarbonate, poly(cyclohexanedimethanol), copolymer cyclohexanedimethanol and ethyleneterephthalate and mixtures thereof.

42. The product according to paragraph 41, in which said additional polymer in the sealant layer contains polykarbon is so

43. The product according to clause 37, in which the aforementioned colored fluorescent film overlay layer has the best stability of fluorescent light than said colored film sublayer.

44. The product according to clause 37, in which the aforementioned polymer matrix substrate has a polymer structure selected from the group consisting of acrylic resin, polystyrene, polyvinyl chloride, complex polyester, polyarylate, copolymer of styrene and Acrylonitrile, polyurethane, and combinations thereof and copolymers.

45. The product according to clause 37, in which the aforementioned polymer matrix overlay layer has a polymer structure selected from the group consisting of polycarbonate, acrylic resin, polyarylate resin, and combinations thereof and copolymers.

46. The product according to clause 37, in which the aforementioned colored fluorescent film overlay layer, essentially blocking light having a wavelength of from about 250 to about 520 nm.

47. The product according to clause 37, in which the aforementioned fluorescent paint overlay layer is benzoxanthenes paint, benzothiazinone paint or a combination of both.

48. The product according to clause 37 or 47, in which the aforementioned fluorescent dye mentioned film sublayer is at least one perilesional paint.

49. A method of manufacturing a product according to any one of claims 1 to 48, namely, that the volume of inaut first polymer resin and, at least one first ink receiving composition of the sublayer, prepared from a second polymeric resin and at least one second ink composition of the overlay layer, formed from these compositions of polsloe painted film substrate, formed from these compositions overlay layer dyed film overlay layer, and mentioned the painted film overlay layer has better color stability than said colored film substrate, with at least one of these colored films is fluorescent colored film, and stack mentioned colored film overlay layer on said colored film sub-layer to obtain a multilayer fluorescent sheet material having a selected fluorescent coloration.

50. The method according to 49, additionally providing for the introduction of elements that have the property to reflect in the reverse direction, the sheet material.

51. The method according to 49, additionally providing for the introduction of elements that have the property to reflect in the opposite direction, in the above-mentioned underlayer sheet material.

52. The method according to 49, additionally providing for the introduction of elements that have the property to reflect in the opposite direction, so that the said colored film sublayer on azyvaetsja between the colored film overlay layer and elements having the property of reflection in the opposite direction.

53. The method according to 49, additionally providing for the laying of the polymeric sealing layer on said colored film overlay layer so that the said colored film overlay layer is between the sealing layer and said colored film sublayer.



 

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The invention relates to a method for ensuring the authenticity of the subject by applying to a photochromic ink

FIELD: polymer material.

SUBSTANCE: invention relates to polymeric multilayer fluorescently stained particles widely applicable for distribution of visible information and provides sheet-shaped fluorescence-emitting articles. These have at least two film layers, each of which contains fluorescent dye in polymer matrix. Stained film of the upper layer is characterized by higher resistance to UV emission than stained sublayer film, and article itself has specified fluorescent coloration differing both from coloration of said stained fluorescent sublayer film and from coloration of said stained fluorescent upper layer. Manufacturing process for such articles is also described. Articles may optionally contain light-returning elements suitable as warning signs such as pedestrian crossing signs and signs indicating school zones, which emit fluorescent yellow color.

EFFECT: ensured resistance to weather conditions, increased color durability, and improved coloration characteristics regulated by industrial standards for particular conditions.

37 cl, 14 dwg, 3 tbl, 11 ex

FIELD: manufacture of gas-permeable materials containing layer of low-stretchable fabric and microporous coat for use in construction engineering.

SUBSTANCE: microporous coat contains composition of crystalline polymer and filler. Method of manufacture of gas-permeable material includes extrusion of coat on layer of low-stretchable material. Coat is made from composition of crystalline polymer and filler. Tension of non-woven material layer is increased.

EFFECT: enhanced strength or stiffness of non-woven material layers; facilitated procedure of process.

29 cl, 2 ex

FIELD: food industry; packing.

SUBSTANCE: proposed packing material contains main layer of fibrous material, at least one gastight polymeric barrier layer protecting packed product and at least one polymeric thermosealing layer as surface layer of material. Thermosealing layer includes light-absorbing black pigment protecting product from visible light and white pigment. White and black pigments are mixed with thermosealing polymer thus forming thermosealing layer to impart gray color to layer. Invention contains description of pack for food product formed from said packing material and method of food packing.

EFFECT: provision of packing material of improved barrier layer impermeable to light and resembling aluminum foil.

18 cl, 1 tbl, 7 dwg

FIELD: packing laminated plastic, and also folding roller, including the means for applying patterns of bending lines onto packing laminated plastic, and also to layer for usage in packing laminated plastic.

SUBSTANCE: packing laminated plastic contains one of layers, composition of which includes metallic magnetizable particles, acting as information carriers. Roller contains means for application of pattern of bending lines onto packing laminated plastic, and also additionally contains means for application of magnetic fields. Device for performing technological operation over laminated plastic additionally contains device for applying magnetic field for magnetization of magnetizable particles in laminated plastic.

EFFECT: creation of layer in packing laminated plastic, by means of which it is possible to apply decorative patterns to whole surface of package without necessity to keep free spaces for guiding marks; decreased risk of damage to said marks caused by mechanical influences; it is possible to use whole surface of package as information carrier.

5 cl, 7 dwg, 6 ex

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