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Annular polychromatic photochromic anti-counterfeit paper and preparation method thereof

A technology of multi-color light and anti-counterfeiting paper, applied in the field of anti-counterfeiting labels, can solve the problem that fibers do not have multi-color effect, etc., and achieve the effect of increasing the anti-counterfeiting effect and increasing the difficulty of imitation

Active Publication Date: 2018-11-06
SHANDONG TAIBAO PREVENTING COUNTERFEIT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, the fibers in the existing fluorescent fiber anti-counterfeiting paper do not have a multi-color effect, but a simple monochrome effect

Method used

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  • Annular polychromatic photochromic anti-counterfeit paper and preparation method thereof
  • Annular polychromatic photochromic anti-counterfeit paper and preparation method thereof
  • Annular polychromatic photochromic anti-counterfeit paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The ring-shaped polychromatic optical angle color-changing anti-counterfeiting paper is made of the following raw materials in parts by weight:

[0037]

[0038] The preparation method is as follows:

[0039] The circular fluorescent fiber, bleached kraft hardwood pulp, bleached kraft softwood pulp, triphenylpyrrole derivatives, polyvinyl alcohol, alkaline hydrogen peroxide mechanical pulp and deionized water were mixed and stirred to make pulp. In the papermaking process, the anti-counterfeit paper with ring-shaped polychromatic light angle changes is obtained.

Embodiment 2

[0041] The ring-shaped polychromatic optical angle color-changing anti-counterfeiting paper is made of the following raw materials in parts by weight:

[0042]

[0043]

[0044] The preparation method is the same as in Example 1.

Embodiment 3

[0046] The ring-shaped polychromatic optical angle color-changing anti-counterfeiting paper is made of the following raw materials in parts by weight:

[0047]

[0048] The preparation method is the same as in Example 1.

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Abstract

The invention relates to security labels, in particular to annular polychromatic photochromic anti-counterfeit paper and a preparation method thereof. The annular polychromatic photochromic anti-counterfeit paper is prepared from, by weight, 10-60 parts of annular fluorescent fiber, 20-50 parts of bleached sulphate hardwood pulp, 10-20 parts of bleached sulphate coniferous pulp, 10-15 parts of triphenyl pyrrole derivatives, 5-8 parts of polyvinyl alcohol, 10-20 parts of alkaline peroxide mechanical pulp and 3-5 parts of deionized water. The annular fluorescent fiber is distributed in the paperbody and can be picked out with a needle; the annular fluorescent fiber is colored by natural light, and under the fluorescent irradiation, bright color appears on the annular fluorescent fiber by rotating the labels or changing the irradiation angle of a fluorescent lamp; when phosphors of various colors are used, polychrome is formed, and anti-counterfeit effect and imitation difficulty are increased. The preparation method is scientific and reasonable and simple and easy to implement.

Description

technical field [0001] The invention relates to an anti-counterfeit mark, in particular to an annular polychromatic optical angle-changing anti-counterfeit paper and a preparation method thereof. Background technique [0002] At present, the anti-counterfeiting substrates of special materials mainly include fiber paper, watermark paper, fragile paper, holographic materials, etc. These substrates play the role of carriers in the production process of anti-counterfeiting marks. The processing is simple, the cost is low and the efficiency is high. However, at present, fiber paper mainly adopts the method of adding colored fibers and fluorescent short fibers to realize the anti-counterfeiting function. Counterfeiters can easily imitate the visual effect of ordinary colored fibers and single monochromatic fluorescent fibers by printing thin lines. [0003] In addition, the fibers in the existing fluorescent fiber anti-counterfeiting paper do not have a multi-color effect, but a ...

Claims

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Application Information

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IPC IPC(8): D21H27/00
CPCD21H27/00
Inventor 巩端洲宋庆涛孙建修田亮巩曰东
Owner SHANDONG TAIBAO PREVENTING COUNTERFEIT
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