Annular polychromatic optical angle-changing anti-counterfeiting paper and preparation method thereof
A multi-color light, anti-counterfeiting paper technology, applied in the field of anti-counterfeiting signs, can solve the problem that the fiber does not have multi-color effect, and achieve the effect of increasing the anti-counterfeiting effect and the difficulty of imitation
Active Publication Date: 2021-05-28
SHANDONG TAIBAO PREVENTING COUNTERFEIT
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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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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 an anti-counterfeit mark, in particular to an annular polychromatic optical angle-changing anti-counterfeit paper and a preparation method thereof. The annular polychromatic optical angle color-changing anti-counterfeiting paper is made of the following raw materials in parts by weight: 10-60 parts of annular fluorescent fiber; 20-50 parts of bleached kraft hardwood pulp; 10-20 parts of bleached kraft softwood pulp 10-15 parts of triphenylpyrrole derivatives; 5-8 parts of polyvinyl alcohol; 10-20 parts of alkaline hydrogen peroxide mechanical pulp; 3-5 parts of deionized water. Annular fibers are distributed in the paper body of the present invention, and can be picked out with a needle; the annular fibers are colored under natural light, and under the irradiation of fluorescent light, when the label is rotated or the irradiation angle of the fluorescent lamp is changed, the annular fluorescent fibers will appear brightly colored. When phosphors of various colors are used, multiple colors will be formed, which increases the anti-counterfeiting effect and the difficulty of imitation. The preparation method of the invention is scientific, reasonable, 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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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