Security paper and manufacturing method thereof

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

Active Publication Date: 2014-01-29
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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  • Security paper and manufacturing method thereof
  • Security paper and manufacturing method thereof
  • Security paper and manufacturing method thereof

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 3mm and a thickness of 1.2dtex is dispersed at a concentration of 0.03% by mass, and an appropriate amount of hemp pulp fiber, polyarylether (PAE), and a dispersant are 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 roller 11, the band...

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Abstract

The invention discloses a manufacturing method of security paper. The manufacturing method comprises the steps of refine pulping, pulp proportioning, paper manufacturing with the pulp, drying, sizing and finishing processing. The paper manufacturing with the pulp step further comprises the steps that first, liquid diffusing media with water as main body are used for diffusing security materials to form a liquid diffusing body; second, the diffusion body is conveyed to the fourdrinier wire surface of a cylinder paper making machine, and then the security materials are dewatered in a vacuum drawing mode so as to be attached to the fourdrinier wire surface to form a first wet paper page; when a second wet paper page attached to a cylinder mould is uncovered from the fourdrinier wire with the strip first wet paper page in an attached mode, the first wet paper page and the second wet paper page are compounded to form a third wet paper page, and the security materials are arranged on the surface of the third wet paper page in a strip mode. The surface of the security paper made through the method contains a strip area formed by the strip wet paper pages, and the security materials are arranged in the strip area. The security materials of the security paper are arranged on the surface layer of the paper and are subjected to the sizing process, and the security materials can be conveniently observed, counted, detected, and identified.

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 Applications(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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