RU2450936C1 - Data media with optically variable pigment and method of producing data media with optically variable pigment - Google Patents

Abstract

FIELD: printing.

SUBSTANCE: invention relates to printing products protected from counterfeiting, and refers to data media with an optically variable pigment and method of its manufacture. It comprises a protective element having at least one part of the information made in colour contrasting with the media, and one transparent layer applied to at least one of the parts of the information located below it. The protective element contains an information element which is made with structure and a width of lines provided by optically variable pigments, and having a typical width of whitespace elements forming the proper information, from 40 to 200 microns, and the integrated optical density of parts with information value of between 60 and 90% of optical density of colourful items without information.

EFFECT: invention enables to improve manufacturability by using a wider range of equipment for application of part of information and a transparent layer while reducing the cost of both the product and the proper protective element with the information element due to use of cheaper printing materials.

9 cl, 2 dwg, 2 ex

Description

The invention relates to the manufacture of information carriers, in particular banknotes, identity cards or other fake-protected printing products based on paper with optically variable pigment, and their protection against falsification.

An optically variable image is known, for example, from document RU 2161092 C2, 12.27.2000, where a storage medium is described: a banknote that contains a printed pattern made of parallel lines and an additionally embossed three-dimensional linear structure. Due to a certain relative position of the printed and three-dimensional structures, when viewing the information carrier perpendicular to the surface, the printed lines are visible, and when viewed from an acute angle, they are not visible.

Also known is a storage medium with an optically variable structure (CA 1019012 A, 10/11/1997) formed by printed rasters.

A known method of manufacturing media using metallographic printing, in which colorful or inkless metallographic stamping is applied to a previously applied coating. This combination allows you to get a security paper with a variable image used to protect against counterfeiting and to determine their authenticity (RU 2235021 C2, 08.27.2004).

The disadvantage of this method of manufacturing protected from counterfeiting valuable products is the inability to achieve perfectly accurate relative positioning of the pre-printed image and metallographic image.

The prior art solutions that ensure the labeling of products - media and their protection against unauthorized reproduction or counterfeiting - the use of elements with optically variable properties that create an optically variable effect in multilayer products (EP 0317514 A1, EP 0435029 A3).

Elements, such as those claimed in this application, could be printed metallographically using ink with color-changing pigments, but this is impractical, since it should be noted that the ink is expensive and the equipment must be special.

The objective of the invention is to increase manufacturability by using a wider range of equipment for applying a piece of information and a transparent layer while cheapening the cost of both the product itself and the protective element with the information element through the use of cheaper printing materials.

The technical result is to achieve a higher degree of contrast due to the graphical execution of the details of the protective element itself, namely, due to the visual optimized width of the gap elements, i.e. increasing the contrast of the security element with respect to the information carrier itself.

The technical result is achieved due to the fact that the storage medium with an optically variable pigment, in particular a banknote, an identity card or other fake-protected printing products containing a security element having at least one section with information made in color contrasting with information carrier, and one transparent layer containing optically variable pigments deposited on at least one of the sections of information located beneath it, is additionally characterized in that the protective element contains an information element, which is made with the structure and width of lines provided by means of optically variable pigments, having a characteristic width of blank elements that form the information itself, from 40 to 200 μm and an integrated optical density of sections with information of 60 to 90% optical density of colorful elements without information.

In addition, in such a multilayer product, a graphic object and / or text element, and / or geometric element, and / or guilloche element, and / or pattern, and / or logo, and / or coat of arms can be applied to the information element as information. , and / or raster, including in the form of a graphic object, and / or element of engraving, etc .;

a graphic object that is used as an information element has a positive and / or negative execution;

information on the information element can be applied by offset printing and / or metallographic printing and / or letterpress printing;

information on the information element can be applied by hot pressing of metallized opaque foil;

a transparent layer is applied by screen or flexographic printing;

paints and varnishes with a degree of transparency of at least 70% were used as a transparent layer;

as a transparent layer used paints and varnishes containing inclusions and / or pigments, such as liquid crystal pigments and / or phosphors, and / or iridescence pigments, and / or other color-changing pigments.

The technical result is also achieved by using the claimed method of manufacturing an information carrier, in particular a banknote, an identity card or other counterfeit printed products containing a security element with optically variable properties, having at least one section with information and one transparent optically variable layer containing optically variable pigments, according to which at least one information element is made in the security element, which is made with can be readable by means of optically variable pigments, the structure and width of the lines, having a characteristic width of white space elements forming the actual information from 40 to 200 μm and an integrated optical density of sections with information of 60 to 90% optical density of colorful elements without information.

The invention is illustrated by drawings.

Figure 1 shows an example of the execution of the element in the form of a logo. Figure 2 shows another example of the execution of the element in the form of an ornamental pattern.

Example 1

Figure 1 shows an example of a security element in the form of a logo. The information section, which is made in the form of a polygon, contains information elements printed by offset method. One element of information - a figure in negative execution (1) - is made by lines with a width of 40 to 130 microns, another element of information is a text (2) with a line width of 50 to 200 microns. The external contour of the entire piece of information in the form of a polygon consists of information elements - a negative line 200 microns wide and a positive line 150 microns wide. A transparent layer (3) with a degree of transparency of 80% containing liquid crystal pigments is applied to part of the information section. Part of the information section (4) remains free of the transparent layer. The integrated optical density of the information section in the area of applying the transparent layer is 68%.

Example 2

Figure 2 shows another example of a protective element in the form of an ornamental pattern. The entire piece of information (5), printed in a standard-printing method, consisting of information elements - negative lines (blank areas) 180 μm wide, is screen-printed with a transparent layer (6) with a transparency level of 90%, containing a phosphorus based on zinc sulfide having yellow-green luminescence under the influence of ultraviolet radiation with an excitation wavelength in the range from 330 to 370 nm.

Example 3

The example is similar to example 1, and similarly, on the information section, which is made in the form of a polygon, information elements printed by offset method are placed. One element of information - a figure in negative execution - is made with lines only 40 microns wide, another element of information is text with a line width of only 50 microns. The external contour of the entire piece of information in the form of a polygon consists of information elements - a negative line 100 microns wide and a positive line 120 microns wide. A transparent layer with a degree of transparency of 80% containing liquid crystal pigments is applied to part of the information section. Part of the piece of information remains free of the transparent layer. The integrated optical density of the information area was set as the minimum value from the interval that determines the significant distinguishing features from the analogue, and was verified by calculation and measurement and amounted to 60% in the area of the transparent layer.

Example 4

Similar to example 2, but on the entire piece of information printed in a standard-printing method, consisting of information elements - negative lines (blank areas) 200 μm wide, a transparent layer was applied by screen printing method with a maximum transparency level that is possible to achieve the specified technical result 90% . This is possible with the addition of a phosphor based on zinc sulfide, which has yellow-green luminescence, under the influence of ultraviolet radiation with an excitation wavelength in the range from 330 to 370 nm.

Example 5

An example is similar to examples 1 and 3, and similarly, on the information section, which is made in the form of a polygon, information elements printed by offset method are placed. One element of information - a figure in negative execution is made with lines only 200 microns wide, another information element is text - with a line width of 200 microns. The external contour of the entire piece of information in the form of a polygon consists of information elements - a negative line 40 microns wide and a positive line 40 microns wide. A transparent layer with liquid crystal pigments with a degree of transparency of 90% is applied to part of the information section. Part of the piece of information remains free of the transparent layer. The integrated optical density of the information section was set as the maximum value from the interval that determines the significant distinguishing features from the analogue, and was verified by calculation and measurement and amounted to 60% in the area of applying the transparent layer.

Example 6

Similar to example 4, but in contrast to it, the entire piece of information printed in a standard-printing method, consisting of information elements - negative lines (blank areas) 40 μm wide, was screen-printed using a transparent layer with a minimum degree of transparency that is possible to achieve the specified technical result 60%.

Example 7 (comparative).

An example is similar to example 1, and similarly, information elements printed by offset method are placed on a piece of information in the form of a polygon. One element of information - the figure in negative execution is made with lines only 210 microns wide, the other information element is text with a line width of 230 microns. The external contour of the entire piece of information in the form of a polygon consists of information elements - a negative line 40 microns wide and a positive line 40 microns wide. A transparent layer with liquid crystal pigments with a degree of transparency of 90% is applied to part of the information section. Part of the piece of information remains free of the transparent layer. The integrated optical density of the information section was set as the maximum value from the interval that determines the significant distinguishing features from the analogue, and was verified by calculation and measurement and amounted to 60% in the area of applying the transparent layer. Measurements did not confirm an increase in the degree of contrast compared to analogues.

Example 8 (comparative).

An example is similar to example 7, and similarly, information elements printed by offset method are placed on a piece of information in the form of a polygon. One element of information - a figure in negative execution is made with lines only 200 microns wide, another element of information is text with a line width of 200 microns. The external contour of the entire piece of information in the form of a polygon consists of information elements - a negative line with a width of 50 microns and a positive line with a width of 40 microns. A transparent layer with liquid crystal pigments with a degree of transparency of 96% is applied to part of the information section. Part of the piece of information remains free of the transparent layer. The integrated optical density of the information section was set as the maximum value from the interval that determines the significant distinguishing features from the analogue, and was verified by calculation and measurement and amounted to 56% in the area of applying the transparent layer. The measurements did not show an increase in the degree of contrast compared with the known analogues.

The technical result was confirmed by instrumental measurements, which confirmed the achievement of the degree of contrast in examples 1-6 to 4-9% greater compared to analogues. This became possible due to the graphic execution of the details of the protective element itself, which is represented by the set of essential features set forth in the claims. In examples 7, 8, the expansion of the arsenal of means of the declared purpose was undoubtedly demonstrated, but the technical result, an increase in the degree of contrast, was not achieved, which confirms the materiality of each of the features given in the claims.

Thus, this invention allows to increase manufacturability by using a wider range of equipment for applying a piece of information and a transparent layer while reducing the cost of both the product itself and the protective element with the information element due to the use of cheaper printing materials.

Claims (9)

1. A storage medium with an optically variable pigment, in particular a banknote, an identity card or other fake-protected printing products containing a security element having at least one section with information made in color contrasting with the storage medium and one transparent a layer containing optically variable pigments deposited on at least one of the sections of information below it, characterized in that the protective element contains an information element that is made with the structure and width of lines provided by means of optically variable pigments, having a characteristic width of white space elements that form the information itself, from 40 to 200 μm and an integrated optical density of sections with information of 60 to 90% optical density of colorful elements without information. 2. The storage medium according to claim 1, characterized in that the graphic element and / or text element and / or geometric element and / or guilloche element and / or logo and / or logo are applied to the information element as information. , and / or coat of arms, and / or raster, including in the form of a graphic object, and / or element of engraving, etc. 3. The storage medium according to claim 1, characterized in that the graphic object that is used as the information element has a positive and / or negative execution. 4. The storage medium according to claim 1, characterized in that the information on the information element is applied by offset printing and / or metallographic printing and / or letterpress printing. 5. The storage medium according to claim 1, characterized in that the information on the information element is applied by hot pressing of a metallized opaque foil. 6. The storage medium according to claim 1, characterized in that the transparent layer is applied by screen or flexographic printing. 7. The storage medium according to claim 1, characterized in that as a transparent layer used paints and varnishes with a degree of transparency of at least 70%. 8. The storage medium according to claim 7, characterized in that the transparent layer used paints and varnishes containing inclusions and / or pigments, such as liquid crystal pigments and / or phosphors, and / or iridescence pigments, and / or other color variables pigments. 9. A method of manufacturing an information carrier with an optically variable pigment containing a protective element with optically variable properties, having at least one section with information and one transparent optically variable layer containing optically variable pigments, characterized in that the protective element is made, at least one information element, which is made with the structure and width of lines provided by means of optically variable pigments having a characteristic width of white space elements of the constituents that form the information itself from 40 to 200 μm and the integrated optical density of the sections with information of magnitude constituting from 60 to 90% of the optical density of colorful elements without information.

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