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Anti-counterfeiting material

A technology of organic materials and patterns, applied in fiber raw material processing, textiles and papermaking, non-fiber pulp addition, etc., can solve the problems of not being able to change from red to black, limited selection of pattern transformation, and inability to disappear, etc., achieving obvious anti-counterfeiting effects Effect

Active Publication Date: 2008-03-26
SHANGHAI KOS SECURITY PAPER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its specific limitation is that because the invention only prints one printing pattern on the main body of the material, specifically, the invention only shows that a single-color straight line printing pattern is printed, and other patterns are essentially concave-convex. The pattern formed by the image, therefore, when viewed from different angles, one specific printed pattern cannot be changed into two specific printed patterns, for example, it cannot disappear a whole piece of black or red; it cannot change a whole piece of red into a whole piece of black; It can't turn a colorful landscape painting into a colorful portrait of people
Therefore, the transformation options of its patterns are very limited.

Method used

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Examples

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Embodiment Construction

[0042] Figures 1a to 3a list three embodiments in which the concave-convex shielding structure 2 of the anti-counterfeiting material 1 of the present invention is a different three-dimensional structure.

[0043] The concave-convex occlusion structure 2 shown in Figure 1a is a three-dimensional two-sided cone, which shows a plurality of two-sided cones of the same size side by side, with a single concave-convex structure image, and each two-sided cone is equivalent to a shading element. The visual surface is composed of many shading elements facing the same micro-surfaces. In Figure 1a, the micro-surfaces a1, a2, a3, and a4 with the same orientation and with the same or different imprints constitute a visible surface; with the same orientation, they can be printed with Microsurfaces b1, b2, b3, and b4 of the same or different imprints constitute another visible surface, and two characteristic patterns A and B are respectively distributed on the two visible surfaces at different...

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Abstract

A false proof material has concave and convex structure on surface of false proof material. It features that said concave and convex structure with shielding function has two fixed character patterns of A and B set at two different angles of visible surface on false proof material for making obvious visual difference to raise false proof effect.

Description

technical field [0001] The invention relates to a material with an anti-counterfeit function, in particular to an anti-counterfeit material with a concave-convex structure. Background technique: [0002] The existing technology that has a concave-convex structure and uses a change in viewing angle to achieve pattern transformation to achieve anti-counterfeiting functions can be summarized as follows: [0003] 1. Three-dimensional printing: It is characterized by covering a piece of transparent organic material with a convex lens function and a convex shape on a special printing pattern. When the viewing angle is changed, the light refraction angle changes, so that different corresponding patterns can be seen, thereby realizing the pattern change. The limitation of this technology is that it must have a certain thickness to achieve this change in refraction angle. The existing material of the convex lens layer cannot be less than 0.5 millimeters, and can only achieve one-wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H19/66D21H21/42D21H21/40
Inventor 孙显林
Owner SHANGHAI KOS SECURITY PAPER TECH CO LTD
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