Triple anti-forge material and triple anti-forge paper product thereof

A technology for anti-counterfeiting paper and products, applied in textiles and papermaking, papermaking, fiber raw material processing, etc., can solve problems such as poor publicity, and achieve the effects of enhanced bonding, high bonding fastness, and good acid resistance.

Active Publication Date: 2007-07-18
CHINA BANKNOTE PRINTING & MINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] On the basis of researching the anti-counterfeiting ability of existing anti-counterfeiting materials, the inventor has developed a multifunctional anti-counterfeiting material, which not only enhances the anti-counterfeiti

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Make polyvinyl alcohol into a solution of about 35%, and add anti-counterfeiting powder (all particle sizes are less than 3 μm, can directly withstand 365nm ultraviolet light continuous irradiation for 60 hours; can withstand 140°C for 30 minutes) into the solution:

[0029] Temperature-changing powder (produced by Beijing Chenlei Technology Co., Ltd.): reversible discoloration in the temperature range of 50-60 ° C, red at room temperature, red disappears after heating, the amount added is equivalent to about 3% of the polyvinyl alcohol content by weight;

[0030] Phosphor powder (produced by Peking University Deli Technology Co., Ltd.): the amount added is equivalent to about 1% by weight of the polyvinyl alcohol content, and it shows blue fluorescence under ultraviolet light;

[0031] Infrared powder (produced by Peking University Deli Technology Co., Ltd.): the amount added is equivalent to about 1% of the weight of polyvinyl alcohol, and it will show green fluorescen...

Embodiment 2

[0039] Polyvinyl alcohol is prepared into a solution of about 30-40%, and anti-counterfeiting powder is added to the solution (the particle size should be less than 3 μm):

[0040] Temperature-changing powder (produced by Beijing Chenlei Technology Co., Ltd.): reversible discoloration in the temperature range of 50-60°C, blue at room temperature, and disappears after heating. The amount added is equivalent to 3-4% by weight of polyvinyl alcohol content about;

[0041] Phosphor powder (produced by Peking University Deli Technology Co., Ltd.): the amount added is equivalent to about 2% by weight of the polyvinyl alcohol content, and it shows yellow fluorescence under ultraviolet light;

[0042] Infrared powder (produced by Peking University Deli Technology Co., Ltd.): the amount added is equivalent to about 1.5% by weight of the polyvinyl alcohol content, and it will show red fluorescence under infrared irradiation;

[0043] The above-mentioned polyvinyl alcohol solution added ...

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Abstract

The present invention provides one kind of triple anti-fake material including carrier and anti-fake powder. The carrier is made with polyvinyl alcohol, polypropenyl alcohol, polyamide or viscose fiber; and the anti-fake powder includes thermochromic material, fluorescent material and infrared material. Of the anti-fake powder, the thermochromic material is 1-6 wt% of the carrier, and each of the fluorescent material and the infrared material is 0.5-3 wt% of the carrier. The multifunctional anti-fake material of the present invention has raised anti-fake effect and fast combination with paper base.

Description

technical field [0001] The invention relates to an anti-counterfeiting material, in particular to a multifunctional anti-counterfeiting material applied to paper-based products. The anti-counterfeiting material has triple anti-counterfeiting functions of temperature change, fluorescence and infrared, and can be especially used in the manufacture of anti-counterfeiting paper. Background technique [0002] The anti-counterfeiting methods of paper-based products can be roughly divided into physical and chemical methods in terms of identification principles, such as watermarks in banknotes, anti-counterfeiting threads, anti-counterfeiting fibers that can be seen directly by the naked eye, laser holography of credit cards, invisible barcodes of commodities, etc. It belongs to the physical anti-counterfeiting method, and the chemical anti-counterfeiting method is to reveal the product characteristics by checking the chemical reaction of the anti-counterfeiting components under cert...

Claims

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Application Information

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IPC IPC(8): D21H21/48
Inventor 曹秀痕刘永红
Owner CHINA BANKNOTE PRINTING & MINTING
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