Anticounterfeit document with photopermable element

An element and document technology, applied in the field of anti-counterfeiting documents with light-transmitting elements, can solve problems such as easy imitation

Inactive Publication Date: 2003-06-11
SECURITY PRINTING INST OF PEOPLES BANK OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect that the existing anti-counterfeiting technology has the advantage of being easy to identify but is easy to imitate, and to design an anti-counterfeiting document that can be easily recognized by the public and difficult to imitate, which can greatly improve its anti-counterfeiting function

Method used

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  • Anticounterfeit document with photopermable element
  • Anticounterfeit document with photopermable element
  • Anticounterfeit document with photopermable element

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0023] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment, to better understand the present invention:

[0024] figure 1 is an embodiment of the present invention, and the light-transmitting elements are represented by black dots here.

[0025] figure 2 It is an enlarged schematic diagram when the light-transmitting elements are two circular through holes and / or perspective holes.

[0026] image 3 is an enlarged schematic diagram when the light-transmitting elements are two elliptical through holes and / or perspective holes.

[0027] Figure 4 It is an enlarged cross-sectional view of small holes formed by laser drilling in the usual method.

[0028] Figure 5 It is an enlarged schematic diagram when the light-transmitting elements are two circular through holes and / or perspective holes, one large and one small.

[0029] Image 6 is an enlarged schematic diagram when the light-transmitting elements a...

Embodiment 1

[0032] Example 1: figure 1 Among them, a plurality of light-transmitting elements 1 are arranged and combined in parallel on the anti-counterfeiting document 2 to form a number "0", the interval between the light-transmitting elements is h, and the pattern composed of the above-mentioned light-transmitting elements can be set on the anti-counterfeiting document without background pattern, It can also be set on anti-counterfeiting documents with background patterns, and this embodiment is set on anti-counterfeiting documents without background patterns.

[0033] figure 2 Yes figure 1 The magnification of an embodiment of the light-transmitting element 1 in , which is closely arranged together by two circular holes 3 of the same size, the diameter φ of each circular hole is 30-120 μm, and the center of the two circular holes The spacing d=100-250μm. The diameter of the actual transmitted light of the closely arranged circular holes is 60-240 μm, so the light-transmitting e...

Embodiment 4

[0035] Embodiment 4, figure 1 The light-transmitting element 1 can be double holes arranged closely and obliquely.

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PUM

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Abstract

The present invention relates to an anti-false file with anti-false characteristics which can be used on the negotiable securities and/or identification paper, and is characterized by that on the invented anti-false file a transmitting element is set, said transmitting element can be visible to the naked eye under the condition of reflected light and transmission light, and under the condition of transmission light the visual effect of said transmitting element can be changed with change of observational angle.

Description

Technical field: [0001] The invention relates to an anti-counterfeit document, in particular to an anti-counterfeit document with light-transmitting elements. Background technique: [0002] At present, there are various anti-counterfeiting methods used on anti-counterfeiting documents such as various valuable tickets and / or identity certificates, such as setting watermarks, fluorescent marks, holographic images, etc. on anti-counterfeiting documents. The above-mentioned anti-counterfeiting means have the following defects: those that are difficult to forge often need special equipment to be identified, and those that are easy to identify are easy to be imitated, and cannot be widely used in various anti-counterfeiting documents. [0003] Chinese patent CN1202134A provides a kind of anti-counterfeit document with anti-counterfeit mark, and this anti-counterfeit mark comprises a plurality of circular or elongated small holes, and small hole is arranged in the printing area of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B42D15/00B42D25/328B42D25/346
Inventor 戴立盛赵越吴硕夫叶冠中黄有志韩绪艳鲁素英
Owner SECURITY PRINTING INST OF PEOPLES BANK OF CHINA
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