Anti-counterfeit paper and its manufacturing method

A manufacturing method and technology for anti-counterfeiting paper, which are applied in the directions of papermaking, papermaking, textiles and papermaking, etc., can solve the problems of anti-counterfeiting fibers falling off, easily exposed anti-counterfeiting fibers, unable to solve the problems such as hooking and entanglement of curved fibers, and reducing the risk of falling off. effect of possibility

Active Publication Date: 2016-06-08
KUNSHAN BANKNOTE PAPER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method still cannot solve the problem of hooking and entanglement of curved fibers in dispersion and flow. In addition, in the paper produced by this method, some anti-counterfeiting fibers are easily exposed on the surface of the paper, and the application of paper in the printing process and subsequent products In the middle, there is a risk of the anti-counterfeiting fiber falling off

Method used

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  • Anti-counterfeit paper and its manufacturing method
  • Anti-counterfeit paper and its manufacturing method
  • Anti-counterfeit paper and its manufacturing method

Examples

Experimental program
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Effect test

Embodiment 1

[0044] In this embodiment, during the copying step, a square plastic sheet with a side length of 0.3 mm and a thickness of 0.01 mm (the plastic sheet has a pearlescent anti-counterfeiting feature), the plastic sheet is dispersed at a concentration of 0.001% by mass, and an appropriate amount of cotton fiber, poly Aryl ether (PAE) and dispersant are dispersed with water to form a uniform dispersion. The plastic sheet dispersion is sent to the surface of the moving Fourdrinier 7 through the flow pipe 5 and the release port 8 at a flow rate of 600ml / min. Simultaneously adopt vacuum suction device 13 to carry out vacuum suction at the other side corresponding position of fourdrinier net 7, make the anti-counterfeit material dispersion dehydration that is main body be attached on fourdrinier net 7 surface, form the width that contains anti-counterfeit material and be 15 millimeters The belt-shaped first wet paper sheet 9, when the fourdrinier wire 7 of the belt-shaped first wet pape...

Embodiment 2

[0046] In this embodiment, during the copying process, a circular plastic sheet with a diameter of 3.0 mm and a thickness of 0.02 mm is dispersed at a concentration of 0.1% by mass, and an appropriate amount of wood pulp fiber, polyarylether (PAE), and dispersant are added. After dispersing with water, a uniform dispersion is formed, and the plastic flake dispersion is sent to the surface of the moving fourdrinier 7 through the flow pipeline 5 through the discharge port 8 at a flow rate of 400ml / min. Use vacuum suction device 13 to carry out vacuum suction at the corresponding position on the side, so that the anti-counterfeiting material dispersion mainly composed of water is dehydrated and adhered to the surface of Fourdrinier 7 to form a strip-shaped first wet paper page 9 with a width of 18 mm containing anti-counterfeiting material , when the fourdrinier wire 7 lifts the second wet paper sheet 10 formed on the cylinder wire 6 by the peeling roller 11, the strip-shaped firs...

Embodiment 3

[0048] In this embodiment, during the copying step, the anti-counterfeiting fiber with a length of 3 mm and a thickness of 1.2 dtex is dispersed at a concentration of 0.03% by mass, and an appropriate amount of hemp pulp fiber, polyarylether (PAE), and dispersant are added, and water is added. After dispersion, a uniform dispersion is formed, and the fiber sheet dispersion is sent to the surface of the moving Fourdrinier 7 through the flow pipe 5 through the discharge port 8 at a flow rate of 300ml / min, and at the same time, it is on the other side of the Fourdrinier 7. The position adopts vacuum suction device 13 to carry out vacuum suction, so that the anti-counterfeit material dispersion mainly composed of water is dehydrated and attached to the surface of Fourdrinier 7 to form a band-shaped first wet paper page 9 containing anti-counterfeit material with a width of 10 mm. When the Fourdrinier 7 lifts the second wet paper sheet 10 formed on the cylinder wire 6 by the peeling...

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Abstract

The invention discloses a method for manufacturing anti-counterfeiting paper, which sequentially includes a pulping step, a pulping step, a papermaking step, a drying step, a sizing step and a finishing processing step, wherein the papermaking step is as follows: firstly, a liquid with water as the main body is used The dispersion medium disperses the anti-counterfeiting material to form a liquid dispersion; then the dispersion is sent to the fourdrinier surface of the rotary paper machine, and then the anti-counterfeiting material is dehydrated and attached to the fourdrinier surface by vacuum suction to form the first wet paper sheet ; When the fourdrinier attached to the strip-shaped first wet paper sheet lifts the second wet paper sheet attached to the cylinder, the first and second wet paper sheets are combined to form the third wet paper sheet, and the anti-counterfeiting material is located at the third wet paper sheet The surface is distributed in a band shape. The surface of the anti-counterfeiting paper formed by the method contains a band-shaped area formed by a band-shaped wet paper sheet, and the band-shaped area contains anti-counterfeiting materials. The anti-counterfeiting material of the anti-counterfeiting paper of the present invention is on the surface layer of the paper. And after sizing treatment, it is easy to observe, count, detect and identify the anti-counterfeit material.

Description

technical field [0001] The present invention relates to a method for manufacturing anti-counterfeiting paper such as banknote paper, security paper, passport paper, bill paper, certificate paper, etc., in particular to a kind of anti-counterfeiting paper containing anti-counterfeiting materials distributed in bands on the surface of the paper and its manufacturing method . Background technique [0002] At present, anti-counterfeiting materials such as anti-counterfeiting fibers, anti-counterfeiting discs, anti-counterfeiting powders, and ring-shaped anti-counterfeiting materials of known anti-counterfeiting papers are generally mixed with anti-counterfeiting materials in the pulp and applied to the paper in a full-scale manner in the paper, using the above method For the anti-counterfeiting paper produced, some anti-counterfeiting materials are covered by paper fibers, which will have a certain adverse effect on the anti-counterfeiting features of some anti-counterfeiting ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F11/08D21H21/40
Inventor 王都义王坤陆春宇刘刚萧声涛
Owner KUNSHAN BANKNOTE PAPER
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