Printed form for continuous sealing surfaces of large area, a method of its manufacture, storage medium printed with the image of a large area and method of metallographic printing

 

The invention relates to the field of printing. In the proposed printed form on engraved, filled with paint areas provided by the partition separating the engraved areas into smaller sections and vertically protruding above the bottom surface of the engraved section to the height component of at least 50% of the depth of engraving, these partitions do not have surfaces lying at the level of the surface of the printing form. These partitions provide no print defects in the paint, can effectively prevent the removal of printing ink from the engraved areas when erasing this excess ink from the surface of the printing form, and allow to completely cover the layers of paint a large surface area of the printed image on the media. 4 C. and 67 C.p. f-crystals, 8 ill.

The invention relates to a printed form, which is designed for the continuous sealing surface of the interconnected areas of the printed image by the method of metallographic printing and played by means of which a printed image printed on its surface in the form of engraved custennin method of metallographic printing the printed image, having at least one area with a layer of colorful area of over one square millimeter, with the specified at least one paint layer covering the surface of this area of the printed image on the whole area. In addition, the invention relates to a method of metallographic printing.

When metallographic printing flat images are, as is known, by using located close to each other, i.e., with high density, engraved lines, the width of the individual engraved lines, which are separated from each other naprawianie partitions is typically a few tenths of a millimeter.

For process printing engraved lines of the printing form fill paint. Excess paint is removed from the printing plate washing roller or squeegee so that the engraved lines were filled to the brim with paint. At the same time during the working operation clean and partitions located between the engraved lines.

At the end of the printing process to print the form of a pressure cylinder having a resilient surface with high pressure, so the pressure is pressed on the printing medium, usually paper. This is by contact with the printing ink. The Department of media, from printed forms printing ink out of the grooves of the engraved lines. The resulting imprint consists of printed lines, the thickness of the paint layer which varies depending on the depth of engraving.

If metallographic printing use semi-transparent printing inks, for the sealing of the white media paint with a small layer thickness receive light hue, and with the sealing thick layer of paint get darker hue.

Compared to other common methods of printing metallographic printing allows you to get prints with a very thick layer of paint. Obtained with this printing method prints when using the appropriate engraving depth even noticeable to the touch. On the other hand, using an appropriate fine engraving allows you to print extremely fine lines perfect clarity.

Despite the ability to get through metallographic printing high-quality, decomposed into linear patterns prints the downside to this printing method is the impossibility of obtaining a continuous sealed surface Bytca paint with sakatani paint the printing plate on the cylinder engraving with a large surface area is removed not only the excess paint, but also removes the ink from the engraved recesses. The paint on these etched areas below the surface of the printing form. Since in this case pressed into the engraved areas of the printing plate and the paper is not in all places reaches the surface of the paint, in the impression formed in the gaps or spaces that make this impression is unsuitable.

Based on the foregoing, the present invention was based on the task of developing appropriate measures, which under metallographic printing would provide a continuous sealing of large areas of the impression so that the sealed surface is visually perceived as a uniformly colored.

In relation to the printing form, which is designed for the continuous sealing surface of the interconnected areas of the printed image by the method of metallographic printing and played by means of which a printed image printed on its surface in the form of engraved areas, this problem is solved due to the fact that engraved fill paint sections of the printing form provided by the partition separating the engraved areas on a more m is at the level of the surface of the printing form.

The basic idea of the invention is to wipe excess ink from the printing cylinder, respectively, from the printing plate, to prevent the unwanted removal of printing ink from the depressions in the engraved area, which in the engraving include the so-called partitions that prevent or at least minimize the impact of the erase roller on the printing ink, which is filled engraved recesses of the printing form. Not based on any theory, I believe, that formed by the excess paint wave, raising the erase roller and moving before him in the course of its movement on the surface of the printing form, under the action of hydrodynamic forces captures and part of the ink from the engraved recesses. Obviously, partitions prevent movement of the total volume in the engraving of printing ink, preventing the generated erase roller wave paints to get her with him. In the partitions divide the engraving more space on adjacent cameras or channels, which, on the one hand, allow the extraction of ink perpendicular to the surface of the printing plate in the printing process, but which, on the other Scania excess paint.

In accordance with one of the preferred variants of the engraved areas are engraved lines and/or engraved items large area. In this case, it is advisable that the width of the engraved lines was more than 0.5 mm, preferably more than 1.0 mm

The partitions are preferably positioned transverse to the direction of rotation of the wiping roller. It is obvious that with this arrangement, they allow you to trim arise in the process of removing excess paint wave and thus has been proposed to separate the filling engraving printing ink from the excess water removed from the surface of the printing form. In line with this, according to another variant of the proposed in the invention of the printing plate engraved areas are engraved lines and bulkhead are held transversely engraved lines, resulting in the formation are located in a number of smaller areas, and walls are transversely or diagonally to the direction of removal of excess paint.

In cases where walls cannot be placed transversely to the direction of abrasion, such walls provide at least split up into smaller sections engravings great Patarini have engraving with minor (high-lineature) structure. In line with this, according to another variant of the proposed in the invention of the printing plate engraved areas are engraved lines and bulkhead are held in parallel engraved lines and transversely or diagonally to the direction of removal of excess paint.

Thus, given the basic idea of the invention engraved areas it is reasonable to provide partitions, having them preferably transversely to the direction of wipe excess paint. In the case of engraved lines, which run along the direction of erasing such partitions provide a split of these engraved lines are located in a number of smaller areas. In line with this, according to the following variant of the proposed in the invention of the printing plate engraved areas are engraved lines and bulkhead are held transversely engraved lines, resulting in the formation are located in a number of smaller areas, and walls are transversely or diagonally to the direction of removal of excess paint. Engraving passing transversely or diagonally to the direction of wipe excess paint, broken up into smaller sections at least sell the engraving. In line with this, according to another variant of the proposed in the invention of the printing plate engraved areas are engraved lines and bulkhead are held in parallel engraved lines and transversely or diagonally to the direction of removal of excess paint.

In those cases, when the engraving is not only very wide engraved lines, but also from large engraved elements of approximately the same dimensions in the x and y directions, partitioning can be performed in a raster, i.e., to provide overlapping partitions, passing, for example, longitudinally and transversely relative to the direction of rubbing. Equally there is the ability to perform a partition in the form of concentric circles, cell structure, etc., the Advantage of this implementation of the partitions is not only that these partitions will in any case be perform intended for them to function regardless of the direction in which the wipe is removed the excess paint, but also in making the walls higher mechanical strength. In line with this, according to the following variant of the proposed in the invention of the printing form walls are stationary picture. The specified raster preferably represents a linear raster or raster with intersecting lines. In the latter case, it is preferable that a raster with intersecting lines consisted of the first engraving in parallel, preferably straight, engraved lines and superimposed on the first second engraving engraving parallel, preferably straight, engraved lines. It is helpful to first line engraving crossed the line second engraving at an angle from 20 to 90preferably from 40 to 70.

As described above, the septum is most preferable to provide in the engraving of the printing form for metallographic printing, since the width of the engraved lines more than 0.5 mm When the width of the engraved lines of 1 mm or more, the presence of these partitions becomes almost mandatory.

The height of these walls is possible, as shown by experiments, vary within relatively wide limits. If the partition ends at the level of the surface of the printing form, the partitions should be given in the section of the wedge-pointed form. In this form, on the one hand, partitions provide obostrennym the edges of the partitions eliminates the gaps in the printed surface.

If the upper edge of the partitions positioned below the surface of the printing form, the partitions in principle, you can give almost any non-wedge-shaped profile in cross-section, i.e., to perform their trapezoidal, circular or other cross section shapes. Since the upper edge of the partitions in this case are always located below the surface of the printing form, and therefore are always below the level of the printing ink, in this implementation of the partitions in any case, there is provided a corresponding sealing surface throughout its area without gaps and spaces.

It was found that the use of partitions, the upper edge of which terminates exactly at the level of the surface of the printing form, leads to relatively rapid wear of the surface of the wiping roller. So to solve this problem, the upper edges of the partitions should be placed below the surface of the printing form by the amount of not less than 2-5 microns. Such minimum reducing the height of the partitions in any case is appropriate.

Preferably, the height of the walls ranged from 3 to 150 μm, more preferably from 8 to 60 μm. The ratio between the height of the walls and provided, that the upper edges of the partitions can be placed on a much lower level. In accordance with this value, you can reduce the height of the walls below the surface of the printing plate can be up to 50% of the depth of engraving.

It was found also that the partition wall, the height of which, below also called amplitude is more than 50% of the depth of engraving, lead to the emergence of a sort of "notches" on the surface of the paint layer on the substrate using them surface. Although the surface is sealed with the help of such a large area engraving, and completely covered with paint, partitions give this surface a certain relief. However, this surface has the most pronounced relief in the case, when the amplitude of the partition walls is from 75 to 100% of the depth of engraving. At lower amplitudes, for example about 60%, such a relief surface gradually becomes less pronounced and eventually fizzles with amplitude of approximately 50%. At values less than 50%, especially at deeper engraving, increases the probability of occurrence of print defects in the form of gaps or omissions, making an imprint of the unfit. the E. the print quality is achieved in the case when the depth of engraving is from 5 to about 150 microns. It was found that for the most common printing images, respectively impressions engraving depth should preferably be from 10 to 60 μm. When using normal paints for metallographic printing engraving such depth allows you to get the colorful layers that are mostly perceived as translucent, semi-transparent, and a slight change of the depth of engraving allows you to get the distinct eyes change color tone. Engraving depth from about 60 to 100 μm is most suitable for printing colorful layers that produce the impression of rich, opaque ink. Accurate depth, obviously, will vary depending on, whether it's light or dark paint.

The etching depth of 100 μm or more is most suitable to receive paint layers with a distinct touch of a relief structure.

Preferably next to the upper edge of the partitions were located at some distance from each other that is greater than or equal to the width of contact of the engraving tool used for engraving sootvetstvoval less than 500 μm, more preferably from 20 to 150 μm, most preferably 50 microns. In principle, the smaller thin (high-lineature) structure embossed sealed surface, the more difficult it is to discern without the aid of auxiliary means (e.g. magnifying glass). This applies at least to the thin correspondingly small structures obtained using partitions, the step between which is approximately from 20 to 150 μm and which are wedge-shaped. The plates arranged with a pitch in the range from 150 to about 400 microns, although visible to the naked eye, nevertheless they in no way degrade the overall impression created by a continuous sealed the paint surface. When using partitions are not wedge-shaped, and trapezoidal in cross-section profile, available on the relief surface cracks become wider, i.e., occupy a large area. Such structures will affect the appearance of the printed surface through the use of, for example, formed by the walls of the raster as a visible design element. When engraving partitions not in the form of a raster, but in the form of font characters, graphic symbols, etc., similar to font characters or graphical si is about values, significantly exceeding 500 μm, increases the number listed at the beginning of the description of print defects in the form of gaps, gaps, stains, etc.,

Preferably next to the proposed in the invention of the printing form partitions due to their parallel arrangement formed small linear structure. In this case, the printed form must be approved for use with the pressure cylinder so that the linear fine structure was located mainly parallel to the axis of rotation of the clamping cylinder.

In accordance with another preferred implementation proposed in the invention of the printing form and the length and width of the engraved area is more than 1 mm

According to another variant proposed in the invention of the printing form has at least first and second engraved areas differing in form and/or the location of partitions. In this case, it is preferable that the orientation of the partitions on the first engraved area was different from the orientation of the partitions on the second engraved area. It is more preferable to arrange the partitions on the first engraved area at right angles to the partitions on the second Graniczna from the depth of engraving on the second engraved area. While it is preferable that the upper edges of the partitions on the first engraved area distance from each other a greater distance than the upper edges of the partitions on the second engraved area. In addition, it is preferable that the upper edges of the partitions on the second engraved area defended from the surface of the printing form to a greater distance than the upper edges of the partitions on the first engraved area. The first and second engraved areas preferably also run adjacent to each other.

The invention also proposes the recording media obtained by the method of metallographic printing a printed image having at least one area with a layer of colorful area of over one square millimeter, with the specified at least one paint layer covering the surface of this area of the printed image on the whole area. Such an information carrier is characterized by the fact that the size of the parties to a given surface, such as its length and width, amounting to more than 0.5 mm, and the paint layer is held in one direction by at least one notch, the location where the paint layer has a minimum thickness.

Preferably, chief of the preferred embodiments of the media specified at least one paint layer has a relief surface, formed small structure with regularly repeating structural elements. In this case, it is preferable that the structural elements were repeated in increments of less than 0.5 mm

In accordance with the following preferred implementation proposed in the invention of the media mentioned above fine structure forms a raster or regular pattern. Preferably, this raster was a linear raster or raster with intersecting lines. Preferably next to a small structure formed raster with a line width of less than 150 microns.

According to another preferred variant the execution of the media provided he printed image has at least a first section with a first small structure and a second section with a second small structure that is different from the first. In this case, it is preferable that the first and second areas of the printed image was represented by one or more font characters or graphic image. It is preferable that the orientation of the fine structure on the first area of the printed image was different from the orientation of the fine structure in the second area of the printed image. In with the of zobrazenie different width lines. In addition, it is preferable that the first and second areas of the printed image differed in the thickness of the paint layer.

Taking into account the fact that the technology of the manufacture of printed forms for metallographic printing as such is already the case for most complex methods of production of printing forms, it is obvious that the presence of additional partitions in the engraving creates significant additional problems. The severity of such problems increases also due to the fact that to perform the proposed invention the function requires not only the existence of partitions of corresponding form, amplitude and location, but micron accuracy of their production. Manually or etching such printed forms to make it is impossible. Therefore, proposed in the invention of the printing products and printing forms provide them with a high degree of protection against forgery and copying.

However, to produce such printing forms by means of engraving devices described in the application WO 97/48555. This device allows you to produce printed forms for metallographic printing milling with computer control. To this end, in the computer, you enter the location of the lines on the two-dimensional crazy tool for example, rotating chisel or laser beam, a first engraved outer contour of these surfaces to obtain their exact shape or outline. Then edged the surface area the same or a different engraving tool is removed the material results in the entire line, just engraved in accordance with dashed original. However, depending on the type of engraving tool and control it by moving the bottom surface of the engraving can be given a defined surface roughness (instead of getting a smooth surface), as well as get proposed in the invention partitions of any amplitude, with different angles of inclination of the lateral surfaces or the precise profile in cross section. The important point however, as mentioned in the beginning of the description, is that to perform the proposed invention features minimum amplitude partitions should be approximately 50% of the depth of engraving. If the value is significantly less than the specified, engraved large-area elements will inevitably lead to the emergence of these early descriptions print defects even though the printing ink and held in the stew.

In accordance with this invention there is a method of manufacturing a printed form designed for the continuous sealing method of metallographic printing surfaces, namely, that prepare the workpiece for a printed form with the appropriate surface and then on the surface of the blank printing plate engraving tool to engrave at least one appropriate substrate of large surface area so that remained of the walls, the speakers in the engraved area and dividing it into smaller sections, with the specified partitions in the engraving give such a manner that they had no surfaces, lying at the level of the surface of the printing form.

Engraved areas preferably engraving in the form of lines and/or large-area elements. In this case, engraved lines it is advisable to perform a width of more than 0.5 mm, preferably more than 1.0 mm

In accordance with another preferred embodiment of the proposed invention in a method of manufacturing a printing plate engraved areas engrave in the form of engraved lines, and Perigord ASDI, while walls are transversely or diagonally to the direction of removal of excess paint.

In another embodiment, the engraved areas are encouraged to engrave in the form of lines and bulkhead run in parallel engraved lines and transversely or diagonally to the direction of removal of excess paint.

However, according to another variant implementation of the present invention in a method of manufacturing a printed form partitions perform so that they form a uniform fine structure in the form of raster or regular pattern. In this case, preferably, the same raster was a linear raster bitmap raster or raster with intersecting lines. Raster with intersecting lines are preferably formed by using the first engraving in parallel, preferably straight, engraved lines and superimposed on the first second engraving engraving parallel, preferably straight, engraved lines. The first line of engraving is preferably performed so that they crossed the line second engraving at an angle from 20 to 90especially from 40 to 70.

In the form of a partition is preferably performed so to the angle of inclination of the lateral surfaces relative to the perpendicular conducted to the surface of the printing form, ranged from 15 to 60, preferably from 30 to 50. In this case, etching is preferably used an engraving tool with a corresponding angle of its sides. As such engraving tool is preferable to use a chisel pointed shape.

In accordance with another embodiment of the proposed invention in a method of manufacturing a printing plate on a surface of the workpiece to perform the printing form the first etching and the adjacent area on the workpiece surface for printing forms perform the second etching so that between the first and second engraved on the surface of the printing form or slightly below it remained partition pointed shape.

On the engraving area before or after the execution of the partition material is preferably removed from the surface of the blank printing plate at a depth of 2-5 microns.

Preferably, the maximum distance that are separated from each other by partitions, was less than 500 μm, more the method of manufacturing a printed form within the site of one engraving provide partitions of different heights.

Preferably, the depth of the engraving engraved on the surface of the printing form plot ranged from 5 to 150 μm, more preferably from 10 to 60 μm.

Preferably, the septum due to their parallel arrangement formed on the surface of the printing form small linear structure.

In accordance with another embodiment of the proposed invention in a method of manufacturing a printing form by at least one first cuts plot engrave the first fine structure and at least one second engraved area engrave the second fine structure different from the first. When this partition on the first of the engraving area is preferably performed with an orientation different from the orientation of the partitions on the second of the engraving area. In this case, the spacers on the first of the engraving area is preferably positioned at right angles to the partitions on the second of the engraving area.

The first of the engraving area, it is preferable to etch to a depth different from the depth of the engraving on the second of the engraving area.

Partitions on the first of the engraving area preferably then be placed on a larger maximum distance preferably continue to do so, to their upper edges defended from the surface of the printing form to a greater distance than the upper edges of the partitions on the first of the engraving area.

In the invention it is also proposed a method of metallographic printing for continuous sealing the entire surface of the interconnected areas of the printed image using the proposed in the invention of the printing form.

Proposed in the invention, the solution creates completely new possibilities of engraving printing forms for metallographic printing. The use of engraved large print area allows you to get engraved line width from 1 to 10 mm or more when the thickness of the paint layer 40 microns, and more. Similarly in the process of metallographic printing becomes possible to obtain without any problems sealed over the entire area of the geometric surfaces of several square centimeters.

Small (high-lineature) the structure of the sealed surface may take the form of raster or it may be present font characters or graphic symbols. Even when choosing the most flagrant of all small structures (with the distance between the partitions of the order of 500 microns) it is impossible to forge any Izv the printed media. Thus, the presence of such small structures is evidenced by not only the use itself of high-quality method of metallographic printing, but also on the application described in WO 97/48555 engraving device, which due to its high cost is not available to counterfeiters.

Other advantages of the invention discussed below in more detail by the example of some variants of its implementation with reference to the accompanying drawings, in which Fig.1-7 in cross section depicts the respective parts of the printing plate with engraving.

In Fig.1 shows a portion of the printing form 1, surface 2 which has an engraving 3 preset depth t that is populated printed paint. Shown in the cross section of engraved items are lines perpendicular to the plane of the drawing, and is designed so that between the parallel grooves remain partitions 4, the upper edge 5 which is located at the level of the surface 2 of the printing form. Partitions 4, on the one hand, prevents the removal of printing ink in the erase process of the formed by etching recesses 3, and on the other hand, provide structuring portable on the canvas is painted.

The step between parallel elements engraving 3 corresponds to the distance d between the upper edges 5 of the partitions. In the form shown in Fig.1-3 embodiment, when the step is in the process of etching recesses offset engraving tool, corresponds to the distance d between the upper edges of the partitions, the distance d is preferably from 20 to 150 μm, to obtain a thin, small patterns that cannot be distinguished without the aid of auxiliary means, a distance of approximately 50 μm is most preferable.

Received by ordered partitions or periodic variation in thickness of the paint layer allows you to create printed colorful layer of fine structure, which taking into account the resolution of the human eye is unable to distinguish with the naked eye when viewed normally, and which therefore can serve as a hidden protective element or attribute that is not reproducible nor electrophotographic or any other method of printing.

Despite the availability of printed ink layer of fine patterns, it is perceived by the human eye as a homogeneous layer of paint. The intensity of the CEE the layer, and at a given anglethe inclination of the side surfaces of the etched elements can be adjusted by changing the depth t of the engraving.

In Fig.2 in cross section shows a printing form, which allows you to print an average of more than a thin layer of paint, creating a lighter hue. Engraved surface is shown in Fig.1 and 2 printed forms have the same dimensions at the same anglethe inclination of the side surfaces of elements engraving 3. Due to the smaller depth t engraving in Fig.2, the distance d between the engraved lines are selected less. When printing interconnected continuous sealed surfaces is important given anglethe inclination of the side surfaces of the engraving to choose such a depth t of the engraving and the distance d between the upper edges 5 of the partitions, so that in the engraved area on level surface 2 of the printing form is not formed flat area.

In Fig.3 engraved surface has the same length as in the examples shown in Fig.1 and 2. This engraving has the same depth t, as in Fig.1. Although the partitions 4 and have another cornerdecl what I corresponds to the thickness of the layer, printed using a printing plate shown in Fig.1. Despite various distance d between the partitions 5, and thus various small or high-lineature the structure of the surface to be printed using a shown in Fig.1 and 3 in the printed form, have the same color tone.

In contrast, the printing plate shown in Fig.2 and 3, have the same distance d between the partitions and therefore allow to reproduce the fine structure with the same periodicity of the elements, but because of the different angles (,) of inclination of the side surfaces of engraved items printed with their help colorful layers are medium thickness and shade.

Engraving 3 preferably perform rotating gravers, the angle at the apex of which is measured relative to the centerline of stichele, corresponds to the angle of inclination of the side surfaces of the engraving. These angles are preferably from 15 to 60, more preferably from 30 to 50. Mechanical engraving tools, primarily with the above preferred values of the angle at the top of them, are men, accordingly, partitions, more simply multiply by the production of secondary forms, but from the point of view of the technique of printing they also have the highest properties. Partitions is most preferable to give a wedge-shaped (in cross section) form, respectively, of the profile. However, you can use profiles and any other forms, in particular wave-like or sinusoidal profile. The cross-sectional shape of the partition walls 4 are limited only by your ability to make the engraving tool is required in the external circuit.

If you need to reduce only the thickness of the paint layer on the transition area from one line of fine patterns adjacent to values other than zero, for this purpose, suitable structure shown in Fig.4 and 5.

The original form to matriciana or printed pattern shown in Fig.4, is made, after removing the etching forming a fine structure of the recesses material with facing outward ends of the partitions. In another embodiment, first you remove the material on all of the engraving area on the depth and and then engrave forming a fine structure of deepening. In the face outward ends of the partitions are razpolojenieto b, represents the difference between the depth t of the engraving and the value and reduce the height of the partitions. Sealed by the use of such printed forms the Foundation has on site engraving covering the surface of the solid paint layer thickness and additionally "modulated" fine structure of the maximum amplitude b. Made in this example in the form of a flat sites the upper ends of the partitions left on the imprint of the thin bright line. In the corresponding passage forming walls 4 engraved lines and bright lines, leaving the imprint of trapezoidal dividers 4, can reproduce the drawings, font characters or graphic symbols.

In the form shown in Fig.5 embodiment, to reduce the height of the partitions on the value and you can also by given anglethe inclination of the side surfaces and at a given depth t of the engraving, the distance between the individual engraved lines so small that the upper edge 5 of the partitions was situated below the surface 2 of the printing form.

The advantage associated with reducing the height of the partitions, is that the plastic surface of the wiping roller does not contact directly the displacement of the wiping roller, but small engraved structures of the printing form. Value and that the height of the walls is reduced relative to the level surface 2 of the printing plate is preferably from 2 to 5 μm. In order to ensure clear reproduction of an engraving in the form of small patterns transferred on the basis of the paint layer, the amplitude of b must be more than 50% of the depth t of the engraving.

In Fig.6 shows another variant proposed in the invention of engraving, supplemented by partitions. In this embodiment, the partitions 4 are located at a greater distance d from each other. In contrast to the embodiments according to Fig.1-5, the distance d between the partitions does not match in this case the interval, which is in the process of etching recesses offset engraving tool. The distance d is preferably less than 500 μm. Between the partitions 4 are provided horizontal bottom sections 6 engraving, which for more efficient containment of paint purposefully given a specified roughness. Such a surface roughness set by selection of the relevant geometrical parameters of the engraving tool, namely the angle at the top and corner radius of its vertices, and p is another in the direction transverse direction of the engraving.

In accordance with one of preferred embodiments of the invention engraving 3 is applied to the surface 2 of the printing form so that its depth within the engraved surface was not constant, but continuously increased, respectively, decreased in one direction (Fig.7a, 7b). In the manufacture of engraving variable depth of the lowest point of each engraved line is preferably positioned in a plane which is inclined to the surface of the printing form. The engraving depth can also be changed so that the bottom in the plane of the cross-section of the printing form points lying on the curve, the form of which can be described, for example, by using a parabola or hyperbola. Changing the depth of engraving can vary the perceived hue, respectively shade within interconnected continuous sealed surface and especially in those cases when the depth of engraving is changed to a value in the range of 5 to 60 μm.

In the form shown in Fig.7a embodiment, the distance d between the partitions and their height is constant throughout the engraved area, then as shown in Fig.7b Varian is>).

There is also the possibility to combine on a single printed form elements engraving of various types and forms, as well as partitions of different forms. Similarly engraving of different types or partitions of various shapes can be performed on adjacent parts of the surface or accordingly to vary these parameters within a closed area of the engraved surface. In addition, the first etching can be applied second. When performing the first and second engraving in the form of parallel, preferably direct, engraved lines formed the so-called raster with intersecting lines. If the first line engraving cross the line second engraving at an angle of from 20 to 90especially from 40 to 70in this case, achieving the most effective hold ink received in the engraving, which positively affects important from the point of view of equipment printing properties appropriately engraved printing plates. In addition, printed using such printed forms colorful layers differ the most uniform color tone.

The first and imposed ANAS different depths and/or different spacing between the engraved lines. In the case of the preferred raster with intersecting lines such engraving can get occasionally streaked walls.

Claims

1. Print the form (1), which is designed for the continuous sealing surface of the interconnected areas of the printed image by the method of metallographic printing and played by means of which a printed image on its surface (2) in the form of engraved areas, characterized in that the engraving filled with paint areas provided by the partition (4) separating the engraved areas into smaller sections, with the specified partition (4) is designed in such a way that they do not have surfaces lying at the level of the surface of the printing form.

2. Printed form under item 1, characterized in that the engraved areas are engraved lines and/or engraved items large area.

3. Printed form under item 2, characterized in that the width of the engraved lines is more than 0.5 mm, preferably more than 1.0 mm

4. Printing form according to any one of paragraphs.1-3, characterized in that the engraved areas are engraved lines and bulkhead (4) prochoice walls (4) are transversely or diagonally to the direction of removal of excess paint.

5. Printing form according to any one of paragraphs.1-3, characterized in that the engraved areas are engraved lines and bulkhead (4) parallel engraved lines and transversely or diagonally to the direction of removal of excess paint.

6. Printed form under item 1, characterized in that the partitions (4) are engraved on the plot in such a way that they form a uniform fine structure in the form of raster or regular pattern.

7. Printed form under item 1 or 6, characterized in that the raster is a linear raster or raster with intersecting lines.

8. Printed form under item 7, characterized in that the raster with intersecting lines consists of the first engraving in parallel, preferably straight, engraved lines and superimposed on the first second engraving engraving parallel, preferably straight, engraved lines.

9. Printed form under item 8, characterized in that the first line engraving cross the line second engraving angle of 20-90preferably 40-70.

10. Printing form according to any one of paragraphs.1-9, characterized in that the upper edge of the walls (4) are located on some of rectanglefigure the appropriate section.

11. Printing form according to any one of paragraphs.1-10, characterized in that the distance (d), which are separated from each other by the upper edge (5) of the partitions (4), is less than 500 microns.

12. Printed form under item 11, characterized in that the distance (d), which are separated from each other by the upper edge (5) of the partitions (4), is 20-150 microns.

13. Printed form under item 12, characterized in that the distance (d), which are separated from each other by the upper edge (5) of the partitions (4), 50 ám.

14. Printing form according to any one of paragraphs.1-13, characterized in that the upper edge (5) of the partitions (4) located below the surface (2) of the printing form by the amount of not less than 2-5 microns.

15. Printing form according to any one of paragraphs.1-14, characterized in that the height (b) partition (4) is 3-150 μm.

16. Printed form on p. 15, characterized in that the height (b) of partitions is 8-60 mm.

17. Printed form under item 15 or 16, characterized in that the ratio (b:t) between the height (b) walls and a depth (t) engraving is 0.5 to 1.

18. Printing form according to any one of paragraphs.1-17, characterized in that the depth (t) engraving is 5-150 microns.

19. Printed form under item 18, characterized in that the depth (t) engraving is 10-60 μm.

20. Printing form according to any of serpentara, conducted to the surface (2) of the printing form, is 15-60.

21. Printed form on p. 20, characterized in that the angle (a) of inclination of the side surfaces of the partitions (4) 30-50.

22. Printing form according to any one of paragraphs.1-21, characterized in that the partitions (4) due to their parallel arrangement to form a small linear structure.

23. Printed form on p. 22, characterized in that it is tuned for use with the pressure cylinder so that the linear fine structure was located mainly parallel to the axis of rotation of the clamping cylinder.

24. Printing form according to any one of paragraphs.1-23, characterized in that the length and width of the engraved area is more than 1 mm

25. Printing form according to any one of paragraphs.1-24, characterized by the presence of at least first and second engraved plots differing in form and/or arrangement of the partitions (4).

26. Printed form on p. 25, characterized in that the orientation of the partitions (4) on the first engraved area is different from the orientation of the partitions (4) on the second engraved area.

27. Printed form under item 26, characterized in that the partitions (4) on the first engraved area mu PP.25-27, characterized in that the depth (t) engraving on the first engraved area is different from the depth of engraving on the second engraved area.

29. Printing form according to any one of paragraphs.25 to 28, characterized in that the upper edge (5) of the partitions on the first engraved area are separated from each other at a greater distance (d) than the upper edge (5) of the partitions on the second engraved area.

30. Printing form according to any one of paragraphs.25 to 29, characterized in that the upper edge (5) of the partitions on the second engraved area distant from the surface (2) of the printing form at a greater distance (a) than the upper edge (5) of the partitions on the first engraved area.

31. Printing form according to any one of paragraphs.25-30, wherein the first and second engraved areas are adjacent to each other.

32. Media information obtained by the method of metallographic printing a printed image having at least one area with a layer of colorful area of over one square millimeter, with the specified at least one paint layer covering the surface of this area of the printed image on the whole area, wherein the dimensions of the sides of a given surface, such as its length and width, amounting to more than 0.5 mm, and kr is the paint layer has a minimum thickness.

33. Media in p. 32, characterized in that the dimensions of the sides of a given surface, such as its length and width is more than 1 mm

34. Media under item 32 or 33, characterized in that the at least one paint layer has an embossed surface which is formed a shallow structure with regularly repeating structural elements.

35. Media in p. 34, characterized in that the structural elements are repeated in increments of less than 0.5 mm

36. Media in p. 34 or 35, characterized in that the fine structure forms a raster or regular pattern.

37. Media in p. 36, characterized in that the raster is a linear raster or raster with intersecting lines.

38. Media in p. 36 or 37, characterized in that the fine structure forms a raster with a line width of less than 150 microns.

39. The information carrier according to any one of paragraphs.34-38, wherein the printed image has at least a first section with a first small structure and a second section with a second small structure that is different from the first.

40. Media in p. 39, wherein the first and second areas of the printed image, predstavili 40, characterized in that the orientation of the small structure on the first area of the printed image is different from the orientation of the fine structure in the second area of the printed image.

42. The information carrier according to any one of paragraphs.39-41, wherein the fine patterns on the first and second areas of the printed image differ in the width of the lines.

43. The information carrier according to any one of paragraphs.39-42, wherein the first and second areas of the printed image differ in the thickness of the paint layer.

44. A method of manufacturing the printing plate (1) intended for continuous sealing method of metallographic printing surfaces, namely, that prepare the workpiece for a printed form with the appropriate surface (2) and then on the surface (2) of the blank printing plate engraving tool to engrave at least one appropriate substrate of large surface area so that remained of the partition (4) acting in the engraved area and dividing it into smaller sections, with the specified partitions (4) in the engraving gives this form, so they did not have surfaces lying at the level of p is e lines and/or large-area elements.

46. The method according to p. 45, characterized in that the engraved lines perform a width of more than 0.5 mm, preferably more than 1.0 mm

47. The method according to any of paragraphs.44-46, wherein the engraved areas engrave in the form of engraved lines and bulkhead (4) perform cross engraved lines, resulting in the formation are located in a number of smaller areas, while the walls are transversely or diagonally to the direction of removal of excess paint.

48. The method according to any of paragraphs.44-46, wherein the engraved areas engrave in the form of lines and bulkhead execute in parallel engraved lines and transversely or diagonally to the direction of removal of excess paint.

49. The method according to p. 44, characterized in that the partitions (4) perform in such a way that they form a uniform fine structure in the form of raster or regular pattern.

50. The method according to p. 49, characterized in that the raster is a linear raster bitmap raster or raster with intersecting lines.

51. The method according to p. 50, characterized in that the raster with intersecting lines form with the first engraving in parallel, preferably straight, engraved lines and superimposed on this 2. The method according to p. 51, characterized in that the first line engraving perform so that they crossed the line second engraving angle of 20-90primarily 40-70.

53. The method according to any of paragraphs.44-50, characterized in that the partition (4) is performed so that the angle of inclination of the lateral surfaces relative to the perpendicular conducted to the surface (2) of the printing plate was 15-60.

54. The method according to p. 53, characterized in that the partition (4) is performed so that the angle of inclination of the lateral surfaces was 30-50.

55. The method according to p. 53 or 54, characterized in that for engraving use engraving tool with a corresponding angle of inclination of its sides.

56. The method according to p. 55, characterized in that for engraving using a rotating chisel pointed shape.

57. The method according to any of paragraphs.44-56, characterized in that the surface (2) of the workpiece to perform the printing form the first etching and the adjacent area on the surface (2) blanks for printing forms perform the second etching so that between the first and second passes on the level of the procedure according to any one of paragraphs.44-57, characterized in that the engraving area before or after the execution of the partitions (4) the material removed from the workpiece surface of the printing form to a depth of 2-5 microns.

59. The method according to any of paragraphs.44-58, characterized in that the maximum distance (d), which are separated from each other by a partition (4) is less than 500 microns.

60. The method according to p. 59, characterized in that the maximum distance (d), which are separated from each other by a partition (4) is 20-150 microns.

61. The method according to any of paragraphs.44-60, characterized in that within the area of one engraving include partitions (4) different height.

62. The method according to any of paragraphs.44-60, characterized in that the depth of the engraving engraved on the surface (2) of the printing form plot is 5-150 microns.

63. The method according to p. 62, characterized in that the depth of the engraving is 10-60 μm.

64. The method according to any of paragraphs.49-63, characterized in that the partitions (4) due to their parallel arrangement to form a small linear structure.

65. The method according to any of paragraphs.49-64, characterized in that at least one of the first cuts plot engrave the first fine structure and at least one second engraved area engrave the second small structurepoint with orientation, different from the orientation of the partitions (4) on the second of the engraving area.

67. The method according to p. 66, characterized in that the partitions (4) on the ground of the engraving area are placed at right angles to the partitions (4) on the second of the engraving area.

68. The method according to any of paragraphs.65-67, characterized in that the first cuts plot engrave on the depth (t) that is different from the depth of the engraving on the second of the engraving area.

69. The method according to any of paragraphs.65-68, characterized in that the partitions (4) on the ground of the engraving area have a larger maximum distance (d) from each other than the partition on the second of the engraving area.

70. The method according to any of paragraphs.65-69, characterized in that the partitions (4) on the second engraved area perform so that their upper edges (5) defended from the surface (2) of the printing form at a greater distance (a) than the upper edge (5) of the partitions on the first of the engraving area.

71. The method of metallographic printing for continuous sealing the entire surface of the interconnected areas of the printed image using the printing plate (1) according to any one of paragraphs.1-31.

 

Same patents:

The invention relates to a printed form, used as a cliché for direct imprint image
The invention relates to the art graphics and can be used in original art, industrial art, decorative or other purposes

FIELD: technological processes.

SUBSTANCE: in process of type forms manufacture for metallographer printing in machine (1) blank is retained in process of processing with the help of smooth vacuum plate (7), and temperature of processing device components that affect accuracy of processing is continuously monitored and adjusted, if necessary. Blank processing is done by means of independent shifts of processing device components along at least three axes, every of which is done by means of individual drive.

EFFECT: higher accuracy of processing.

42 cl, 6 dwg

FIELD: technological processes.

SUBSTANCE: method includes realisation of the main shape-generating displacement of tool relative to surface of functional layer of type form with application of programmatically organised coordinate executive system of displacement. In process of the main shape-generating displacement of tool modulation is realised for geometric parametres of profile and/or shape regulated by this displacement in plan of discrete profile structures by means of generation of integral shape-generating displacement of tool. At that at least one additional modulating displacement is imparted to this tool by means of cyclic turn of its longitudinal axis within the limits of specified angle at least in one plane.

EFFECT: expansion of functional resources.

21 cl, 14 dwg

FIELD: mechanics.

SUBSTANCE: proposed complex comprises appliances designed to position the tool and allow it to make a form-building and relative motion. The said appliances include a coordinate mechanical structure to make the tool primary motion relative to operating layer surface and a digital control software system to allow the tool positioning and moving. Aforesaid appliances additionally comprise, at least, one first assembly intended for additional tool motion and allowing the tool holder lengthwise axis turn through a preset angle in, at least, one axis. Note here that the said first unit represents the first appliance of modulating the profile and shape parametres, restricted by the tool primary form-building motion. The said appliance ensures forming the tool integral form-building motion and is furnished with independent drives for every plane of tool turn and software to realised the first additional modulating motion that features various cycle intervals and amplitude of tool holder differential oscillating processes in co-located turn planes.

EFFECT: expanded performances.

12 cl, 14 dwg

FIELD: process engineering.

SUBSTANCE: proposed method comprises major displacement of tool and surface of printing pattern functional layer. For this used is XYZ tool displacement actuating system. Cutting toll is displaced in the field of vision of computer TV microscope to register its cutting part at stationary check position and to register, by software means, tool tip vertical coordinate Z relative to reference plane with coordinate Z0. Printing pattern functional layer is used as said reference plane. Note here that said coordinate Z0 simultaneously with coordinate Z1. Note here that constants ΔZconst=Z1-Z0 are loaded into control program bank for entire cycle of given process. Actuating system control program is configured to allow video control, in present time intervals, over tool cutting edge wear and current coordinate Rt of tool tip relative to coordinate Z0. For this, cutting tool is lifted from current operating position and displaced into filed of vision of TV computer microscope to position corresponding to aforesaid stationary initial position. Then, ΔZT=ZT-Z0 is registered by hardware means. ΔZT is compared to ΔZconst. Control program is subjected to time correlation in coordinate Z by ΔZT=ZT-Z0. Thereafter, tool is moved back into initial position. Note here tool cutting tool is cleaned of micro particles of machined material prior to feeding tool cutting edge into field of vision of said microscope. Besides, in case tool integrity or wear are revealed by hardware means, tool is automatically replaced. Here, ΔZ is defined by Z with respect to tip of new tool.

EFFECT: higher precision and quality.

4 cl

FIELD: dyes.

SUBSTANCE: invention relates typography dyes, in particular, to dye for deep printing. Invention describes dye for deep printing comprising the first binding agent chosen from group of water-soluble or water-diluted acrylate oligomers, photoinitiating agent and, optionally, a monomer as the second binding agent chosen from group consisting of water-soluble or water-diluted monomers of polyethylene diacrylates or polyethoxylated triacrylates used for correction of the composition dye viscosity value. Dye can comprise additives, such as pigments, filling agents, photosensitizing agents, photostabilizing agents and special pigments. Dyes shows viscosity value from 7 to 60 Pa . s at temperature 40°C and dispersed completely in aqueous washing off solution with sodium hydroxide in the concentration from 0 to 0.5 wt.-%. Dyes possesses the excellent capacity for paint removing and it is can be precipitated from the indicated washing off solution.

EFFECT: improved and valuable properties of dye.

28 cl, 9 ex

FIELD: producing decorative effects.

SUBSTANCE: method comprises applying solutions of salts of alkaline metals during printing. The alkaline metals inhibit solidification.

EFFECT: improved quality of coating.

14 cl

FIELD: chemical industry; printing industry; other industries; methods of production of the composition of the paint including the optically changeable pigments.

SUBSTANCE: the invention may be used in production of the optically changeable pigments. The optically changeable pigment includes the stratified set composed of the different materials, in which, at least, one of the layers represents the reflecting layer and, at least, one of the other layers represents the dielectric layer. At least, one of the surfaces of the indicated layers is subjected to the chemical action. The indicated materials also include, at least, one of the layers, which represents the semitransparent metallic layer made out of chromium and also one or more metals and-or their inorganic compounds. At that the metal and-or its inorganic compound are subject to corrosion. The subjected to the chemical action surface of the reflecting and dielectric layer along the edge of the layering block of the edge structure of the pigment is coated with the passivating agent, which is selected from the group consisting of the organic esters and the fluorinated organic esters of the phosphoric acid, having the following structural formula: (Rf-CH2-CH2-O)xP(O)(OH)y, where Rf=F-(CF2-CF2)z, х=1 or 2, у=2 or 1, х+у=3, z=l-7. The composition of the printing paint includes the binding system, water and the optically changeable pigment. The invention allows to diminish oxidation of the metallic layers and dissolution of the dielectric layers of the optically changeable pigment and to use it in the compositions of the printing paint.

EFFECT: the invention allows to diminish oxidation of the metallic layers and dissolution of the dielectric layers of the optically changeable pigment and to use it in the compositions of the printing paint.

22 cl, 7 ex

FIELD: polygraphic products, in particular, methods for its manufacture, possible use for manufacturing various types of securities.

SUBSTANCE: falsification-protected information carrier has at least one section imprinted using metallographic printing method, which consists of profiled lines which constitute an image. The imprinted section is made of profiled lines, colored along whole length, alternating with profiled lines, having colored and non-colored profiled sections along their length.

EFFECT: ensured production of falsification-protected information carrier with an image, which is used for visual or machine-readable control of authenticity.

4 cl, 4 dwg

FIELD: information carriers, and methods for manufacture thereof.

SUBSTANCE: falsification-protected information carrier has at least one section, imprinted using metallographic printing method, consisting of profiled lines, which constitute an image. Given profiled lines have colored layer on part of their length and are made with production of non-imprinted continuation, while a smooth color transition is formed at the boundary between imprinted and non-imprinted section of line.

EFFECT: ensured high degree of protection of polygraphic products from falsification, with simple technology for manufacturing it.

2 cl, 1 dwg

Important document // 2324599

FIELD: textiles; paper.

SUBSTANCE: on the engraved surface of a printing form there are separate areas almost touching each other, with three different values of engraving depths. The printing form is used in metallographic printing of grey scale image, depicting a three dimensional object, by manipulating light and shade and/or plastic effects.

EFFECT: well distinguishable three dimensional image is obtained.

13 cl, 26 dwg, 10 ex

Protective element // 2419549

FIELD: printing industry.

SUBSTANCE: invention relates to a thermochromic printing ink for gravure printing, to a data carrier with a printed image made by the gravure printing method using such a printing ink, and also to method of making such a printing ink and the specified data carrier. The thermochromic printing ink for gravure printing contains a microcapsulated three-component mix with a weight ratio from 25% to 40%, made of at least one electron donor, at least one donor acceptor and at least one dissolvent.

EFFECT: proposed thermochromic printing ink provides for generation of image with fine linear pattern and a microtext, which is characterised by easily distinguishable thermochromic effect and a convex shape, which develops a counterfeit protection effect.

21 cl, 3 dwg, 2 ex

FIELD: printing.

SUBSTANCE: invention relates to a paper and method of its manufacture for covered instruments or securities, as well as to the form of intaglio print for pressing on such paper. The method consists in the fact that at the stage of intaglio print at least one protruding embossing design is applied on paper for production of covered instruments. At that during the stage of intaglio print additionally a set of leveling elements is created, which are distributed on the surface of the paper for production of covered instruments, having a convex relief structure.

EFFECT: alignment of the profile of paper for production of covered instruments documents.

30 cl, 10 dwg

FIELD: printing industry.

SUBSTANCE: invention describes a method in which an intaglio ink fixed with oxidation and an intaglio ink fixed with UV-visible light are shared on one printing form or intaglio printing cylinder for intaglio printing.

EFFECT: printing method provides the ability to create security features by intaglio printing method through the use of various types of dissimilar properties of printing ink different types under printing with a standard printing machine in one printing operation.

16 cl, 4 dwg

FIELD: printing industry.

SUBSTANCE: composition contains the first component A) and the second component B). Component A) is selected from the group consisting of: i) 0.1 to 40 wt % of the first particles plurality having a modal particle diameter of 1 to 3 mcm, ii) 1 to 20 wt % of one or more colorants which can be a material having machine-readable properties, preferably selected from the following group: IR absorption properties, luminescent properties and combinations, and iii) their combinations. Component A) can be a material having computer-readable properties, preferably selected from the group: magnetic properties, UV or IR absorption properties, optically variable properties, light polarization properties, electrically conductive, luminescent and their combinations. Component B) consists of: 0.1 to 40 wt % of a plurality of the second particles having a modal particle diameter of 6 to 25 mcm. Moreover, B) can be a material with machine-readable properties, preferably selected from the group: magnetic properties, UV or IR absorption properties, optically variable properties, light polarization properties, electrically conductive properties, luminescent properties, and their combinations. The first component A) and the second component B) have at least one differing characteristic, which is selected from the group: CIE (1976) colour index parameters, machine-readable properties, and their combinations. Wt% is based on the total weight of the paint composition for metallography.

EFFECT: invention provides metallography elements having a number of characteristics that are improved, predictable and controllable, as well as metallographic elements with a complex pattern and precise register with different physical properties, such as machine-readable ones.

21 cl, 10 dwg, 3 tbl

FIELD: metallographic printing.

SUBSTANCE: form is meant for producing printed image or imprint and has at lest one engraved portion on surface with one or more structural elements. Edge portion of structural elements is engraved for greater depth compared to depth, at which their inner portion is engraved, edge portion and inner portions are directly adjacent, directly merge into one another and inner portion is made in form of area, positioned below surface of printed form.

EFFECT: higher efficiency, lower costs.

4 cl, 4 dwg

FIELD: printing.

SUBSTANCE: method comprises exposing photosensitive layer applied on magnesium plate to ultraviolet radiation, etching in nitrogen acid, removing photosensitive layer, washing in fresh water, and drying.

EFFECT: enhanced quality of printing plate.

3 cl

FIELD: printing technologies.

SUBSTANCE: steel printing form for deep printing contains on its surface at least one first section with printing structures, meant for producing an imprint by deep printing method, and at least one second section with structures intended for stamping, size of which is less than 100 micrometers. Parts of structures which are closest to the surface of printing form are positioned at a distance from 20 to 100 micrometers below level of printing form surface.

EFFECT: ensured stamping of securities and their simultaneous printing with usage of a single steel printing form for deep printing, and also high protection of securities from forgery is ensured.

9 cl, 15 dwg

FIELD: method for manufacturing "intaglio" deep printing forms.

SUBSTANCE: in accordance to the method, a laser is used to manufacture the form on basis of brass alloy and/or with external layer of brass alloy, with recesses and/or lines, where Vickers rigidity of the brass alloy exceeds 140.

EFFECT: form manufacture stages are shortened.

2 cl, 2 dwg

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