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Manufacturing method of anti-counterfeiting paper

A manufacturing method and technology of anti-counterfeiting paper, which is applied in papermaking, textiles and papermaking, fiber raw material processing, etc., can solve the problems of not being able to reflect the fineness of the original image and the fineness of the graphics, so as to achieve clear anti-counterfeiting graphics and reduce the possibility of falling off small effect

Active Publication Date: 2016-05-04
KUNSHAN BANKNOTE PAPER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect of this method is that the area of ​​the paper produced by this method is composed of anti-counterfeiting fibers. The pattern does not reflect the fineness of the original image

Method used

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  • Manufacturing method of anti-counterfeiting paper
  • Manufacturing method of anti-counterfeiting paper
  • Manufacturing method of anti-counterfeiting paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An anti-counterfeit paper, such as Figure 5 As shown, the surface of the anti-counterfeiting paper contains first, second, third, and fourth strip-shaped areas 13a, 13b, 13c, 13d, and the first, second, third, and fourth strip-shaped areas all contain discontinuous wet paper sheets 4 The discontinuous paper layer 12 of a specific shape is formed after drying. There is no overlap between the discontinuous paper layers of a specific shape. Each paper layer of a specific shape contains an anti-counterfeiting material 16, and the anti-counterfeiting paper in this embodiment The paper layer 12 with a discontinuous pattern contains the following raw materials by absolute dry weight: 4 parts of cotton fiber and 1 part of anti-counterfeiting material; the anti-counterfeiting material 16 used in this embodiment is colorless fluorescent fiber, and the papermaking fiber used is beaten Cotton fiber;

[0032] The manufacturing method of the aforementioned anti-counterfeiting paper is...

Embodiment 2

[0042] Step 1: Copy discontinuous wet paper 4:

[0043] (1) Add 1 part of anti-counterfeiting material and 4 parts of cotton fiber to water, stir and disperse, and mix into a suspension containing anti-counterfeit material;

[0044] (2). Design and process the sheet-like article 7 containing the hollowed-out area 6, and fit the side of the sheet-like article 7 with the hollowed-out area 6 to the Fourdrinier;

[0045] (3) Install the duct 9 on the cylinder paper machine. The outlet of the duct 9 is close to the other side of the sheet 7 containing the hollow area 6 and at the corresponding position on the other side of the fourdrinier 3 of the cylinder paper machine. Install vacuum suction device 8;

[0046] (4) The suspension containing the anti-counterfeiting material 16 is continuously flowed through the conduit 9 to the other side of the moving sheet 7 containing the hollow area 6, and under the action of the vacuum suction 8, the suspension containing the anti-counterfeiting mater...

Embodiment 3

[0052] Step 1: Copy discontinuous wet paper 4:

[0053] (1). Add 1 part of anti-counterfeiting material and 10 parts of flax fiber into water, stir and disperse, and mix into a suspension containing anti-counterfeit material;

[0054] (2). Design and process the sheet-like article 7 containing the hollowed-out area 6. The side of the sheet-like article 7 with the hollowed-out area 6 is attached to the Fourdrinier. The shape of the hollowed-out area 6 on the side surface is irregular Geometric figures and regular geometric figures, there is no overlap between irregular geometric figures and regular geometric figures;

[0055] (3) According to the width and spacing of the hollow area 6, five ducts 9 with appropriate outlet widths are used. The duct outlets are rectangular, and the length direction is the same as the movement direction of the cylinder paper machine, and the width is 8mm. The ducts 9 are arranged at the appropriate spacing. And the position is installed on the cylinder ...

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Abstract

The invention discloses an anti-counterfeit paper making method. In a paper molding step, a first wet paper sheet is made on the cylinder surface of a cylinder papermaking machine, a discontinuous wet paper scrip is made on the fourdrinier surface of the cylinder papermaking machine, and the discontinuous wet paper scrip and the first wet paper sheet are compounded to form a second wet paper sheet when the first wet paper sheet on the cylinder surface is thrown from the fourdrinier wire attached with the discontinuous wet paper scrip; and a process for making the discontinuous wet paper scrip on the fourdrinier surface comprises the following steps: applying one side of a tablet containing a hollow-out area to the fourdrinier wire, allowing a suspension containing an anti-counterfeit material to flow to the side of the tablet applied to the fourdrinier wire from the other side of the tablet, and allowing the suspension containing the anti-counterfeit material to form the wet paper scrip in the hollow-out area under vacuum suction, wherein the wet paper scrip is attached to the surface of the fourdrinier wire and moves with the fourdrinier wire. Anti-counterfeit paper produced in the invention has a clear anti-counterfeit pattern, and the authenticity of the anti-counterfeit paper can be easily identified through naked eyes of the public or by means of the detection of a simple hand-held apparatus.

Description

Technical field [0001] The invention relates to a method for manufacturing anti-counterfeiting paper such as banknote paper, security paper, passport paper, receipt paper, and certificate paper. Background technique [0002] Anti-counterfeiting materials, such as anti-counterfeiting fibers, anti-counterfeiting pigments, anti-counterfeiting discs, anti-counterfeiting dots, etc., are known technologies as security features of banknotes and securities, and they are generally introduced into paper during papermaking. The method of adding anti-counterfeiting materials is to apply anti-counterfeiting materials to the pulp during the papermaking process. The anti-counterfeiting materials are evenly mixed with the pulp and enter the wet paper during the papermaking process, thereby distributing the anti-counterfeiting materials inside and on the surface of the paper to achieve anti-counterfeiting purpose. However, the use of this method causes the problem of uneven distribution of anti-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/44
Inventor 王都义陆春宇王坤李鸿斌
Owner KUNSHAN BANKNOTE PAPER
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