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Anti-counterfeiting fiber and manufacturing method thereof as well as safety paper using anti-counterfeiting fiber and safety article

A technology of anti-counterfeiting fiber and manufacturing method, which is applied in papermaking, non-fiber pulp addition, and other household appliances, etc., can solve the problems of affecting anti-counterfeiting performance, degree of difficulty and fineness of fiber color segments, inconsistent fibers, etc.

Active Publication Date: 2014-06-11
KUNSHAN BANKNOTE PAPER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this anti-counterfeiting fiber is that inks of various colors can be printed on the surface of the film by over-printing, and then the film is cut into fibers, and the printed layer is also easy to fall off from the surface of the fiber, thus affecting the anti-counterfeiting performance
[0007] Printing inks of various colors on the surface of the film by printing, and then cutting the film into fibers, its segmentation characteristics come from the ink printed on the film substrate, and the film substrate does not have segmentation characteristics, the fiber In the length direction, only part of the structure has segmental features, and there are segmental features that are different when the viewing direction is different. When the film substrate has color or opaque features, the directional difference is more obvious, resulting in the characteristics of the fiber being detected and observed. showing inconsistency
In addition, the segmentation fineness of the above-mentioned fibers is determined by the fineness of the printing lines, so it is difficult to achieve very fine fiber color segments in segmentation

Method used

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  • Anti-counterfeiting fiber and manufacturing method thereof as well as safety paper using anti-counterfeiting fiber and safety article
  • Anti-counterfeiting fiber and manufacturing method thereof as well as safety paper using anti-counterfeiting fiber and safety article
  • Anti-counterfeiting fiber and manufacturing method thereof as well as safety paper using anti-counterfeiting fiber and safety article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of anti-counterfeiting fiber (such as figure 2 As shown), the anti-counterfeiting fiber is fixedly connected aluminum thin 3, chromium-zirconium copper foil 4 and titanium nitride thin 5 in the length direction. It is 2um.

[0042] A kind of anti-counterfeit fiber manufacturing method, concrete steps are as follows:

[0043] Step 1: Make a sheet with a multi-layer structure in the thickness direction: first process the aluminum thin and chromium-zirconium copper foil respectively, and then fix the aluminum thin and chromium-zirconium copper foil by ultrasonic welding, and then use ion plating The method is to plate titanium nitride on the outer surface of the chromium-zirconium copper foil;

[0044] Step 2: The sheet is cut into anti-counterfeiting fibers with three metal layers in the length direction by cutting method, the length of the anti-counterfeiting fibers is 3mm, and the thickness of the titanium nitride layer is 2um.

Embodiment 2

[0046] A kind of anti-counterfeiting fiber (such as image 3 shown), followed by the red PA layer 7 containing colorless fluorescent red material, the blue PA layer 8 of colorless fluorescent blue material and the yellow PA layer 9 of colorless fluorescent yellow material, which are fixedly connected in turn. The anti-counterfeiting fiber The length is 4mm, and the thickness of the yellow PA layer is 2um. The colors of the colorless fluorescent materials in the above three layers are red, blue and yellow respectively when excited by the excitation light.

[0047] A kind of anti-counterfeit fiber manufacturing method, concrete steps are as follows:

[0048] Step 1: Make a sheet with a multi-layer structure in the thickness direction: First, add colorless fluorescent red material, colorless fluorescent blue material and colorless fluorescent yellow material to three parts of molten PA liquid respectively, and wait for each colorless fluorescent The fluorescent material is distr...

Embodiment 3

[0051] A kind of anti-counterfeiting fiber (such as Figure 4 shown), followed by the red PA layer 7 containing colorless fluorescent red material, the blue PE layer 11 of colorless fluorescent blue material, the yellow PA layer 9 of colorless fluorescent yellow material, and the PA layer without any additives. The EVOH layer 10 and the red PE layer 12 containing a colorless fluorescent red material inside, the anti-counterfeiting fiber is 6mm in length, and the thickness of the yellow PA layer is 2um.

[0052] A kind of anti-counterfeit fiber manufacturing method, concrete steps are as follows:

[0053] Step 1: Make a sheet with a multi-layer structure in the thickness direction: first add the colorless fluorescent red material to two molten PA liquids, and add the colorless fluorescent blue material to one molten PE liquid, colorless The fluorescent yellow material is added to a molten PA liquid, and after various colorless fluorescent materials are distributed in the corre...

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Abstract

The invention discloses an anti-counterfeiting fiber and a manufacturing method thereof as well as safety paper using the anti-counterfeiting fiber and a safety article. The anti-counterfeiting fiber has a multilayered structure in the length direction, wherein any two adjacent layers of the multilayered structure are fixedly combined and at least one layer has chemical components which are different from those of the adjacent layer; at least one layer contains additives with anti-counterfeiting information. The manufacturing method comprises the following steps: firstly, manufacturing a sheet material with the multilayered structure in the thickness direction; machining the sheet material into the anti-counterfeiting fiber with the multilayered structure in the length direction through a cutting manner. The safety paper and the safety article using the anti-counterfeiting fiber and the safety article manufactured by the safety paper adopt counterfeiting methods including printing and the like and the anti-counterfeiting characteristics of the anti-counterfeiting fiber do not occur, so that the anti-counterfeiting capability is improved.

Description

technical field [0001] The invention relates to an anti-counterfeiting fiber and a manufacturing method thereof, in particular to an anti-counterfeiting fiber with a multi-layer structure and a manufacturing method thereof. Background technique [0002] Security objects, such as banknotes, securities or the like, need to be provided with specific security features in order to prevent counterfeiting and to verify their authenticity. It is a known technology to use anti-counterfeiting fibers as the anti-counterfeiting features of banknotes and securities. They are generally composed of short organic synthetic polymers and cotton fibers, and are introduced into paper during papermaking. [0003] Anti-counterfeiting fibers with a single structure in the length direction and anti-counterfeiting fibers with a single anti-counterfeiting feature have been widely used in anti-counterfeiting papers such as banknote paper, bond paper, and bill paper, but paper containing this type of a...

Claims

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Application Information

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IPC IPC(8): D21B1/30D21H15/00D21H21/48
CPCD21H21/42B32B29/002B32B2307/4026B32B2307/422B32B2554/00B42D25/36B42D25/369B42D25/373B42D25/382B42D25/387
Inventor 王都义陆春宇刘刚
Owner KUNSHAN BANKNOTE PAPER
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