Multilayer polymer material with raster structure

FIELD: physics.

SUBSTANCE: disclosed is a multilayer polymer material with a raster structure, having a transparent polymer layer with a micro-raster relief structure in form of spherical lenses and a superimposed transparent polymer layer with printed raster. The layer with printed raster lies at a distance from the surface of the lens raster close to the focal distance of its lenses. The material is made with micro-image raster with resolution of 10-20 mcm. Regions are selected in the field of the printed raster, said regions forming latent images, inside of which the orientation of the raster grid differs from the orientation of the raster grid outside said regions by an angle ranging from 1 to 20 degrees. The latent images become visible upon superimposing the printed raster with the lens raster to form different visual effects.

EFFECT: improved security of articles.

3 dwg

 

The invention relates to the manufacture of paper with hidden items, such as guarding the hidden elements, i.e. identify or become apparent only when using special tests or methods or devices for intervention, i.e. in relation to protected paper, and can be used in the manufacture of banknotes, securities, passports, excise stamps, identification documents.

The prior art hidden guarding items for paper, thin-film transparent and reflective elements made in the form of protective threads, Windows, laminating polymeric films and flat polymer inclusions-applications. Such polymeric elements enable you to generate various difficult faked security features. One of the interesting and popular destinations is the creation of thin-film polymer protective elements on the basis of relief raster structures. Such patterns in combination with printed and embossed bitmaps create original hard simulated protective effects.

An example is the widely known protective polymeric protecting elements "Motion™" company Crane & Co., Inc. (EN 2420411 C2, 10.06.2011), "HALS™" company GRAPAC Japan Co.Inc. (EP 2172340 A1, 07.04.2010), a protective element for a paper company OVD KINEGRAM AG (EN 2376642 C2, 20.12.2009).

It is known that when alum is making paper and printed or embossed raster microimages and raster microlenses with the same period that and raster microimages, at a certain distance between them and under certain raster orientations relative to each other experiencing the effects of the so-called moire magnification microimages. In polymer films, made according to the technology described in the EN 2420411 C2, 10.06.2011, the distance between the films is determined by the thickness of the polymer film, and the orientation of the raster collinear. The protective effect is the formation of a floating enlarged images of the printed image. Changing the orientation of images and their distance from each other will change the size of the enlarged image, they can both increase and decrease. It appears most clearly in the samples in which a lenticular screen and raster images generated in different films, superimposed on each other in the identification (EP 2172340 A1, 07.04.2010, EN 2376642 C2, 20.12.2009).

Closest to the proposed technical solution is the hidden element on paper made according to the technology described in EN 2376642 C2, 20.12.2009. On site paper protected sample form printed or embossed image, made in the form of raster elements which are the simplest micro. For example, in the form of tiny dots round or square shape with a size of about several tens of microns. When observing the surface of such a raster across is imposed on him transparent microlensing raster will be floating raster increased points up to several millimeters. The disadvantage of these technologies for the protective effect is the inability of the formation of hidden information symbols.

The technical result achieved by the invention is to increase the degree of protection products due to the formation of latent images.

The technical result is achieved in that the multilayer polymeric material with a bitmap structure that contains at least one transparent polymer layer with microreservoir relief structure in the form of spherical lenses, and shared with him a transparent polymer layer with the printed pattern with the same spatial period, located at a distance from the surface of the lenticular close to the focal length of its lens, characterized by the fact that it is made with rasters microimages with a resolution of 10-20 μm, in the field of printing raster selection, forming a latent image in which the orientation of the raster grid is different from the orientation of the raster grid is outside the specified areas on the angle from 1 to 20 degrees, the latent image becomes visible when combining the printed image with the lens pattern with the formation of visual effects, motion, or color changes, or increased floating images.

For this proposed hidden multilayer element containing, as a minimum, the Dean transparent polymer layer with microreservoir relief structure in the form of spherical lenses, and shared with him a transparent polymer layer with the printed pattern with the same spatial period, located at a distance from the surface of the lenticular close to the focal length of its lens. According to the invention, in the field of printing raster selection, forming a latent image in which the orientation of the raster grid is different from the orientation of the raster grid outside the specified areas, the latent image becomes visible when combining the printed image with the lens pattern with the formation of visual effects, motion, or color changes, or increased floating images.

To illustrate the invention figure 1 and figure 2 shows the types of printed image area of the latent image (1) the symbol "P"is formed by turning the printed image (2), formed as arrays of circular spots with a diameter of 20 μm, the inside of the latent image on the angle 6 degrees (figure 1) and 20 degrees (figure 2). Figure 3 shows a view of the same section of the printing raster, as in figure 1, when applying a polymer film with a lens raster.

The claimed invention is as follows. On the surface of the polymer layer coated printed or embossed pattern microimages (dots, spots, characters) assigned areas, configuration cat is which form a latent image, and fill their microimages in the form of a raster grid with the same period and the same or other raster elements, and out of selections. The orientation of the raster grid inside selections make excellent on the orientation of the raster grid outside the selected areas, in particular, at an angle of several degrees, mainly, from 1 to 20 degrees. When observing such a complex raster pattern with the selected fields to the naked eye hidden image almost to vary will not be, since the size of raster elements is less than or approximately equal to the resolution of the eye (a few tens of microns).

After application of the described layer printed raster another polymer layer with microwindows pattern with the same spatial period of the latent image becomes clearly visible, as the size increased floating images inside and outside of the selected areas is different, and may significantly exceed the resolution of the eye (from a few tenths of a mm to several mm). Thus, there is a visualization of the latent image. Formed in this manner, the latent images are proposed protective sign. This characteristic is difficult to forge because of the complexity of manufacturing technology microlensing raster and technology pectinata microimages with resolution at the level of 10-20 μm, that is virtually impossible for counterfeiters. We do not know how to simulate such a protective sign.

An example of the proposed latent polymer multilayer material. Transparent polymer layer contains a plot with the printed pattern of the microimages in the form of dark spots rounded. Figure 1 and figure 2 shows the selected area in the form of the letter "P"inside which changed the orientation of the printed image. When applying such a printing dot transparent polymer film to be formed on its surface raster structure with elements in the form of spherical lenses with the same spatial period and symmetry, and that the period of the raster microimages, the size of the rendered floating points inside and outside the characters will be different. This leads to the fact that the characters are clearly distinguishable (Fig 3).

Multilayer polymeric material with a bitmap structure that contains at least one transparent polymer layer with microreservoir relief structure in the form of spherical lenses, and shared with him a transparent polymer layer with the printed pattern with the same spatial period, located at a distance from the surface of the lenticular close to the focal length of its lens, characterized in that it is made with rasters microimages with the resolution is of 10-20 μm, in the field of printing raster selection, forming a latent image in which the orientation of the raster grid is different from the orientation of the raster grid outside the specified areas on the angle from 1 to 20 degrees, the latent image becomes visible when combining the printed image with the lens pattern with the formation of visual effects, motion, or color changes, or increased floating images.



 

Same patents:

FIELD: textile, paper.

SUBSTANCE: polymer sandwich element for paper, which has optically variable effect, is made in the form of a sandwich polymer structure containing at least one layer with microraster relief structure. It has an additional layer with printed or embossed raster of microimages, which is spatially combined with microraster relief structure. Microraster structure is made in the form of raster of spherical transparent polymer lenses or prisms or raster of Fresnel diffraction polymer structures. Printed microimages located in nodes of the printed raster consist of elements of different colours with diametre of 20-100 mcm, which are located at the distance of 40-400 mcm from each other. Mutual location of colourful elements in nodes of the printed raster is discernible in different places of a representational printed field. Inside the defined areas the mutual location of colourful elements differs from mutual location of elements outside the defined areas.

EFFECT: invention allows increasing protection degree of products with protective elements without any increase in prime cost of their production process.

3 cl, 4 dwg, 1 ex

FIELD: textiles, paper.

SUBSTANCE: method of papermaking and the method of production of the protecting element are proposed. The protrusions or recesses in the form of a light watermark are formed on a paper, and these protrusions or recesses are sealed. On some parts of the paper surface, containing the recesses, a paint layer with a negative image is applied. The paint layer covers no more than 80% of the recesses surface. The protecting element is a composite image consisting of protrusions or recesses formed on the paper in the form of a light watermark, and a paint layer with a negative image applied on these protrusions or recesses, covering not more than 80% of the recesses surface.

EFFECT: elimination of difficulties connected with printing and processing of printed products, simplification of identification of the watermark while maintaining its protective properties.

5 cl, 5 dwg

FIELD: textiles, paper.

SUBSTANCE: method of manufacturing a sheet material comprising at least two superimposed fibrous layers, including the following steps: the first paper layer is produced, having at least one elongated zone of zero thickness, by means of filtering of the aqueous suspension of fibers on the grid of the first drum or farmer. And in the process of formation of the said layer, a transparent element is at least partially inserted into it. And the said at least partially transparent element is located at least in the said elongated zone of zero thickness, the second paper layer is produced on the grid of the second drum to form at least one recess in the said second layer, both layers are combined so that at least one recess of the second layer is placed in front of the said at least one elongated zone of zero thickness of the first layer comprising at least partially transparent element, with the formation of the window at this time, and the structure thus obtained is dried.

EFFECT: improvement of the method.

43 cl, 7 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to production of sheet material composed of, at least, two superimposed fibrous layers. Proposed method comprises the following steps. First paper layer is made with, at least, one elongated zero-thickness zone by filtering water suspension at first drum screen. Second paper layer is made at second drum screen to make, at least, one recess in second layer. At least, one transparent element is arranged between two still wet layers to bind both layers so that said recess of second layer, one said transparent element and said elongated zero-thickness zone of first layer are opposed. Made structure is dried.

EFFECT: sheet material with protective element without structure peeling.

43 cl, 6 dwg

Covered instrument // 2448840

FIELD: printing.

SUBSTANCE: invention relates to a covered instrument, in particular, to a banknote, bank card, identification card, certificate, passport, security or certificate. The document contains a translucent carrier substrate made of paper and/or plastic, and at least one protective element applied on the carrier substrate or embedded in the carrier substrate which when seen from at least one side of the covered instrument in transmitted light shows at least one first image and simulates the presence of at least one first watermark in the carrier substrate. At least in some areas the document has at least one layer simulating first watermark, giving it unexpected optical effects in comparison with protective elements with conventional water marks.

EFFECT: document is provided, which is especially hard-to-copy, having simulated effect of the watermark using the protective element.

38 cl, 8 dwg

FIELD: textile, paper.

SUBSTANCE: counterfeit-proof paper comprises a transparent, at least at some areas, film element, which is freely accessible, at least at some areas, via counterfeit-proof paper. The film element is connected to counterfeit-proof paper by means of an adhesive layer, which is highly transparent and clear in the region of freely accessible areas. The adhesive layer for at least one of freely accessible areas includes a groove, which substantially covers this area surface. The groove in the form of a freely accessible area has an adhesive layer, which is 1-2 mm less or 1-2 mm more than this area. The adhesive layer in the area of at least one of freely accessible areas, apart from the groove, has an ornamental area, on which the adhesive layer is applied in the form of ornaments, symbols or a code. Also a film elements is proposed, and a method to manufacture counterfeit-proof paper or a valuable documents (its version).

EFFECT: improved counterfeit protection of paper.

70 cl, 20 dwg

FIELD: physics.

SUBSTANCE: protected document comprises structural layer and first and second diffraction relief structures. Note here that said relief structures, if seen parallel with structural layer plane, stay at different levels of protection element. Note also that first relief structure borders first reflecting layer, while second relief structure borders second partially reflecting layer. Besides, if spectator faces first reflecting layer, second data generated by second relief structure is partially hidden, while, if spectator faces second reflecting layer, partially hidden is first data generated by first relief structure.

EFFECT: higher degree of protection.

15 cl, 26 dwg

FIELD: textile, paper.

SUBSTANCE: structure is intended for secured and/or valuable documents. It contains at least one substrate of fibre material, optionally, at least one surface layer applied onto one surface of substrate. At the same time the specified surface layer comprises coating or surface pigments and at least one binder. It also contains multiple various elements of substrate and/or optionally of a surface layer, distributed in a random manner inside the substrate and/or optionally the surface layer, and at least one portion of authenticating and/or identifying information is related to at least one spatial and/or physical criterion of at least part of specified various elements. Also a document, a packing facility and a sheet material are proposed with application of the above-specified structure. A method to make such a structure, its versions and a method to authenticate and/or identify the structure are also proposed.

EFFECT: improved extent of protection.

31 cl, 12 dwg

FIELD: textile, paper.

SUBSTANCE: paper with counterfeit protection is used in production of securities and documents. Method to make paper with locally arranged protective elements includes formation of the first paper cloth on the first meshy cylinder. Deposition of water dispersion containing protective elements via nozzles at certain sections of moist paper cloth. Formation of the second paper cloth at the second meshy cylinder. Joining first paper cloth with deposited protective elements with the second paper cloth, and also pressing and drying. Water dispersion of protective elements contains at least one water-soluble polymer in amount of 0.1-3.0 wt %. At the same time dispersion of protective elements is supplied with controlled speed via nozzles, every of which is equipped with pump of auger type.

EFFECT: increased quality of paper due to reduction of pulsations of flow dispersion and increased stability of protective elements deposition process in strictly required amount at certain sections of paper cloth.

8 cl, 1 dwg, 1 tbl

FIELD: printing industry.

SUBSTANCE: counterfeit-proof document relates to data media. It contains graphical ornament for visual reproduction of data on a person and/or item. Ornament includes at least one image and/or text data, and with the help of specified printing logic it is applied onto secured document so that it has electromagnet characteristic specified by printing logic and read by means of logical circuit contained in secured document. Electromagnetic characteristic of electroconductive ornament is inductance, capacitance or frequency characteristic. Graphical ornament is applied onto secured document in the form of linear raster. At the same time lines of linear raster are joined to each other in the form of meander or are arranged in parallel. Version of counterfeit-proof document is the document with graphical ornament applied by electroconductive invisible paint transparent for human eye onto counterfeit-proof document. Other characteristics of this document are identical to characteristics of the first version document specified above.

EFFECT: enhanced protection against document forgery.

10 cl, 7 dwg

FIELD: process engineering.

SUBSTANCE: set of inventions relates to security elements designed to protect documents, securities, polygraphic products etc, against counterfeit. Security element comprises outer transparent polymer base with transparent lacquer ply secured thereto and provided with micro relief with thin layers of reflecting and magnetic materials applied thereto. External transparent laminar ply is bonded to said layers with the help of adhesion layer. Depth of micro relief makes 0.01 mcm to 0.5 mcm. Micro relief represents a system of alternating magnetic strips. Security element cam additionally comprises transparent protective breakable ply. Sais security element can comprise two or more plies of magnetic material. Note here that latent info in every magnetic ply differs from latent info in other magnetic layers.

EFFECT: security element resistant to mechanical, chemical and thermal effects, reliable identification.

8 cl, 1 dwg

FIELD: printing.

SUBSTANCE: invention relates to a protection element for bank notes, cards-passes, etc. The protection element comprises a first substrate which at least partly is opaque when viewed in transmitted light, and a plurality of magnetic zones placed on the said substrate, at that each of the said magnetic zones is formed using the first magnetic material, the second magnetic material or composition of the first and second magnetic materials which are at least partially superimposed. The first magnetic material and the second magnetic material exhibit different coercivity values which are determined by the sensor, at that the first and second magnetic materials are magnetically saturated, so that one of the first and second magnetic materials is not affected by the other.

EFFECT: protection element has a high ability to protect against counterfeiting.

25 cl, 10 dwg

FIELD: printing.

SUBSTANCE: invention relates to information, identification cards and can be used for non-cash payments, such in credit bank transactions, in shops, as fare in public transport, etc. The chip card comprises a flat card of preferably rectangular shape, a microchip, a dielectric substrate on which a microchip is mounted, an antenna formed of an electrical conductor located along the periphery in the plane of the flat card and connected to the microchip. The antenna is made in the form of a frame of an electrical conductor and a dielectric layer located inside the electrical conductor to form a space inside the frame at least one partition is entered which is mounted in the space inside the frame to form the through openings in a transverse direction relative to the plane of the flat card. At least one end of the partition is connected to the frame dielectric layer, and the electrical conductor of the antenna is made of a noble metal.

EFFECT: proposed card enables to improve its service life, to improve performance specifications and reliability.

25 cl, 8 dwg

FIELD: printing.

SUBSTANCE: present invention relates to a sheet (1) with counterfeit protection suitable for gravure printing. The sheet comprises a coextrusion substrate (2) which is made of at least one polymeric material and has an inner layer (10) and at least one surface layer (11, 12). The inner layer (10) has pores (14), and the imprint (20) is attached to the sheet by the method of gravure printing, at that the height of the imprint relief formed with gravure printing exceeds 20 microns.

EFFECT: sheet with counterfeit protection can comprise different protective elements and optical means which enables to obtain the sheets with original appearance and a greater degree of protection.

46 cl, 11 dwg, 5 ex

FIELD: printing.

SUBSTANCE: invention relates to production of a security feature on a flat substrate. The particles forming cryptographic random pattern are applied to the substrate. On the substrate on the label site corresponding to the security feature and pretreated with the adhesive, flexible pieces of metal wire, such as copper wire, are poured, at that the pretreatment with adhesive is carried out by local application limited by the label site.

EFFECT: proposed invention provides creation of the simple and inexpensive security feature, easily detected and accurately processed by cryptographic method.

7 cl, 7 dwg

Security document // 2507075

FIELD: printing.

SUBSTANCE: security document comprises a protective device attached to the first part of the document, at that the protective device comprises an area of piezochromic material and a contact structure attached to the second part of the document, which is different than the first part, at that on the contact structure a relief is formed. The security document is made with the ability to provide pressing of the protective device against the contact structure. The piezochromic material is arranged so that when pressing of the protective device and the contact structure to each other in the piezochromic material an optical effect is created, at that the said optical effect displays the said contact structure relief. The said optical effect is caused by deformation of areas of the piezochromic material so that to correspond to the relief of the contact structure.

EFFECT: proposed security document provides enhancement of its protection against forgery, as well as ease of establishing of its authenticity.

22 cl, 6 dwg

FIELD: printing.

SUBSTANCE: invention relates to a method of manufacturing a security or valuable document, which includes the following steps: B) multilayer material is produced, which comprises a paper substrate, a masking layer provided on the paper substrate in the masking area, and marking substance modified by laser radiation, provided in the marked area, at that the marked area covers the masking area, and L) the multilayer material in the marked area is subjected to laser action in order to create the negative signs in the masking area simultaneously in register and discolored signs on unmasked areas of the marked area. At that before performing the step L) on the masking layer at least in the marked area the recesses are made in the form of patterns, signs or a code.

EFFECT: invention provides a high degree of protection against forgery.

25 cl, 22 dwg

FIELD: printing industry.

SUBSTANCE: invention describes an elongated protective element for papers, security papers and other documents. The protective element has longitudinal direction and transverse direction perpendicular to the longitudinal direction; with that, it includes a magnetic layer located on a substrate and having machine readable magnetic sections. The magnetic layer includes a set of frame magnetic elements that have machine readable magnetic sections and are located in longitudinal direction of the elongated protective element; with that, frame magnetic elements form closed magnetic frames located at some distance from each other; with that, each of the above frames is located around additional protective elements, thus containing the above elements inside itself.

EFFECT: proposed invention provides easy and accurate reading of magnetic sections of the protective element at its supply in any reading direction.

20 cl, 11 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to object formed by stencils of concealed image applied on valuable printed paper, said, bank notes, stock, etc, to be protected against counterfeit. Proposed object comprises, at least on a part of substrate surface, a concealed image area located along at least a part of said concealed image and background area located against the background of said concealed image area and said outline area. In concealed image area, multiple first elements of convex or concave profile are arranged at first spacing in first direction. In background area, multiple first elements are arranged at first spacing in first direction in phase that differ from that of first elements in said concealed image area. In outline area, multiple first elements are arranged at first spacing in first direction in phase that differ from that of first elements in said concealed image or background area that adjoins said outline area. In concealed image area, background area and outline area, multiple second elements feature coloring that differs from that of substrate and are located at second spacing in second direction.

EFFECT: better protection against counterfeit.

19 cl, 80 dwg, 11 ex

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to a data carrier, in particular a valuable or security document. The data carrier has window which extends from a lower side to an upper side of the data carrier, and a film element having a security element which covers the window on the upper side of the data carrier. One portion of the security element lies over the window and one portion of the security element lies adjacent to the window. The portion of the security element lying over the window has a radiation-modified region which is superimposed with the window, wherein the visual appearance of the security element is modified by means of electromagnetic radiation on said portion.

EFFECT: data carrier provides high counterfeit protection.

29 cl, 22 dwg

FIELD: protective marks.

SUBSTANCE: method for making protective marks on carrier having first surface and second surface opposite to first surface, includes sealing of first surface with high-resolution varnish, carrier is then electrolyzed and then washed and dried.

EFFECT: higher level of protection of forgery.

3 cl, 25 dwg

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