Anti-counterfeiting paper and manufacture method thereof

A manufacturing method and technology of anti-counterfeit paper, applied in chemical instruments and methods, papermaking, paper, etc., can solve the problems of poor printing performance, anti-counterfeit fiber falling off, easy forgery of anti-counterfeiting paper, etc., and achieve the effect of easy observation and detection, and not easy to fall off

Active Publication Date: 2014-03-05
KUNSHAN BANKNOTE PAPER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the known anti-counterfeiting paper is generally made by adding security thread, anti-counterfeiting fiber and other anti-counterfeiting materials during the paper manufacturing process, but the anti-counterfeiting paper is easy to forge, and the printing performance is not good
The anti-counterfeiting fibers in paper will fall off during printing or use, which will have many adverse effects on detection and identification

Method used

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  • Anti-counterfeiting paper and manufacture method thereof
  • Anti-counterfeiting paper and manufacture method thereof

Examples

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Effect test

Embodiment 1

[0036] In this embodiment, during the copying process, a square plastic sheet with a side length of 0.3mm and a thickness of 0.01mm is dispersed in water at a concentration of 0.001% by mass to form a uniform dispersion system, and passes through a release tube with a diameter of 0.8mm. According to the flow rate of 600ml / min, it is applied to the surface of the first wet paper sheet through the discharge port, and the second wet paper sheet is formed by vacuum dehydration. When the second wet paper sheet is compounded, it is clamped in the middle of the paper sheet. In the final finished paper, the sheet material is distributed in the middle of the paper in the form of bands.

Embodiment 2

[0038] In this embodiment, during the copying step, the circular plastic sheet with an area of ​​5.0 mm and a thickness of 0.02 mm is dispersed in water to form a uniform dispersion system at a concentration of 0.07% by mass percentage, and the anti-counterfeiting material dispersion is released through the discharge port The flow is sent to the surface of the first wet paper sheet, and the distance between the release port and the fourdrinier is 1.5cm, and the second wet paper sheet is formed by vacuum dehydration, and the sheet material is attached to the surface of the second wet paper sheet, and on the other first wet It is clamped in the middle of the paper when it is combined with the second wet paper. In the finished paper finally obtained, the sheet-like material is distributed in the middle of the paper in a band shape, and the width of the distribution band is between 1.5 mm and 2 mm.

Embodiment 3

[0040] In this embodiment, during the copying step, the anti-counterfeiting fiber with a length of 3mm and a thickness of 1.2dtex is dispersed in water at a concentration of 0.03% by mass to form a uniform dispersion system, and the diameter is passed through a release tube of 8mm at a rate of 300ml / min. The flow rate is applied to the surface of the first wet paper sheet through the release port, and the distance between the discharge port and the fourdrinier is 0.5cm, and the second wet paper sheet is formed through vacuum dehydration. The anti-counterfeiting fiber is attached to the surface of the second wet paper sheet, and the When the first wet paper sheet and the second wet paper sheet are compounded, they are sandwiched between the paper sheets. In the final finished paper, the anti-counterfeiting fibers are distributed in the middle of the paper in a band shape.

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Abstract

The invention discloses an anti-counterfeiting paper and a manufacture method thereof. The manufacture method comprises steps of: refining pulp, blending pulp, making paper, sizing glue and finishing processing. A paper moisture page is compounded by at least two layers of a first moisture page; an anti-counterfeiting material is applied to a first moisture page surface to form a second moisture page, when one layer of the first moisture page is vacuumed and dehydrated; during compound of the first moisture page and the second moisture page, the anti-counterfeiting material is clamped between the first moisture page and the second moisture page and is in a strip shape distribution; a final finished product paper prepared through steps of sizing glue and finishing contains the anti-counterfeiting material in a strip shape distribution. As the invention employs the above technical scheme, the anti-counterfeiting material is between the pieces of paper, in strip distribution, not easily shed and beneficial for observation, and has no influence on printing adaptability of the paper. Therefore, the anti-counterfeiting material can be widely applied to the field of manufacture of anti-counterfeiting paper.

Description

technical field [0001] The invention relates to a manufacturing method of 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 between layers and its manufacturing method. Background technique [0002] At present, the known anti-counterfeiting paper is generally made by adding anti-counterfeiting materials such as security thread and anti-counterfeiting fiber during the paper manufacturing process, but the anti-counterfeiting paper is easy to forge and has poor printing performance. The anti-counterfeiting fibers in paper will fall off during printing or use, which will have many adverse effects on detection and identification. Contents of the invention [0003] In order to overcome the above-mentioned defects, the present invention provides an anti-counterfeiting paper and its manufacturing met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/38D21H27/32B32B29/02
Inventor 王都义王坤张业录陆春宇张树荣
Owner KUNSHAN BANKNOTE PAPER
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