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A kind of anti-counterfeiting paper containing single-level grayscale gradient watermark and its manufacturing method

A manufacturing method and single-layer technology, applied in papermaking, textile and papermaking, fiber raw material processing, etc., can solve the problems of single white watermark effect, no machine readable conditions, poor watermark stability, etc., and achieve better anti-counterfeiting effect and anti-counterfeiting effect. Improved effect, stable grayscale effect

Active Publication Date: 2011-12-07
BAODING BANKNOTE PAPER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The white watermark is produced by welding a non-dehydrating material with a certain thickness on the mesh surface. The watermark area is not dehydrated during the preparation process, but the effect of the white watermark is still relatively simple.
[0004] In foreign watermark anti-counterfeiting paper, except for multi-layer watermark and white watermark, breakthroughs have been made in the durability of paper, but in recent years there have been no other forms of high anti-counterfeiting watermarks, and the current watermarks are all first-line anti-counterfeiting. The stability of the machine is poor, so it does not have the machine-readable conditions, and it is difficult to realize the machine-readable second-line anti-counterfeiting feature

Method used

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  • A kind of anti-counterfeiting paper containing single-level grayscale gradient watermark and its manufacturing method
  • A kind of anti-counterfeiting paper containing single-level grayscale gradient watermark and its manufacturing method
  • A kind of anti-counterfeiting paper containing single-level grayscale gradient watermark and its manufacturing method

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Effect test

Embodiment 1

[0058] This embodiment provides a method for manufacturing anti-counterfeit paper containing a single-level gray-scale gradient watermark with two grayscale gradients, wherein the above-mentioned watermark pattern is a circular square-hole money, and the outer circumference of the circular square-hole money pattern is And the four sides of the central square hole are all white areas, and the other central parts are bright gray areas.

[0059] The manufacture method of this anti-counterfeit paper comprises the following steps:

[0060] Use a silver-plated copper alloy plate with a thickness of 0.6mm as the watermark metal sheet, cut the watermark metal sheet into a circle with a square hole in the center according to the watermark pattern, and then follow the watermark pattern to correspond to the bright gray area in the circular watermark metal sheet Holes are cut in part of the hollow area to form metal sheet 2 in the hollow area, and part of the metal sheet 1 corresponding t...

Embodiment 2

[0065] This embodiment provides a method for manufacturing anti-counterfeiting paper with a single-level gray-scale gradient watermark containing three gray-scale gradients, wherein the above-mentioned watermark pattern is two overlapping circular square hole coins, and the left circular square hole The outer circumference of the hole coin pattern and the four sides of the central square hole are all white areas, and the other central parts are bright gray areas. A part of the right circular square hole coin pattern is located under the left circular square hole coin and cannot be seen. In the part, the outer circumference and the four sides of the central square hole are all black areas, and the other central parts are not provided with watermark patterns, which are the same as the paper.

[0066] The manufacture method of this anti-counterfeit paper comprises the following steps:

[0067] Use a silver-plated copper alloy plate with a thickness of 0.6mm as the watermark metal...

Embodiment 3

[0072] This embodiment provides a method for manufacturing anti-counterfeiting paper with a single-level gray-scale gradient watermark containing 4 gray-scale gradients, wherein the above-mentioned watermark pattern is two overlapping circular square-hole coins, and the left circular square hole The outer circumference of the hole coin pattern and the four sides of the central square hole are all white areas, and the other central parts are bright gray areas. A part of the right circular square hole coin pattern is located under the left circular square hole coin and cannot be seen. In the part, the outer circumference and the four sides of the central square hole are all black areas, and the other central parts are heavy gray areas.

[0073] The manufacture method of this anti-counterfeit paper comprises the following steps:

[0074] Use a silver-plated copper alloy plate with a thickness of 0.6mm as the watermark metal sheet, cut the watermark metal sheet into a shape of two...

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Abstract

The invention relates to anti-counterfeit paper with a single-tier gray scale watermark and a manufacturing method of the anti-counterfeit paper. The manufacturing method comprises the following steps of: forming a single-tier gray scale watermark pattern by using a white region and a bright gray region; preparing a watermark metal sheet with a hollow region by adopting a laser cutting method according to the bright gray region in the watermark pattern; preparing a white region watermark metal sheet by adopting the laser cutting method according to the white region in the watermark pattern; pressing positioning slots for the watermark metal sheets on a metal net; welding the white region watermark metal sheet and the watermark metal sheet with the hollow region into the positioning slots on the metal net so as to obtain a compound net; and placing the compound net into a slurry tank for papermaking, and thus obtaining the anti-counterfeit paper with the single-tier gray scale watermark, wherein the watermark metal sheet with the hollow region and the white region watermark metal sheet are obtained by independently cutting or integrally cutting. The invention also provides the anti-counterfeit paper manufactured by adopting the method.

Description

technical field [0001] The invention relates to an anti-counterfeiting paper with a gray-scale gradient watermark and a manufacturing method thereof, in particular to an anti-counterfeiting paper with a single-level gray-scale gradient watermark and a manufacturing method thereof, belonging to the field of anti-counterfeiting paper manufacture. Background technique [0002] Among domestic watermark anti-counterfeiting papers, watermark anti-counterfeiting papers that require strong anti-counterfeiting features generally apply traditional multi-level watermarks, white watermarks and other watermarks. For example, the third, fourth and fifth sets of RMB in China all use Multi-level watermarks, among which, the fifth set of RMB also applies white watermarks. The single-level watermark is the most commonly used in general civilian anti-counterfeiting paper. [0003] The traditional multi-level watermark is produced by the concave-convex variation of the metal mesh surface, and ...

Claims

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Application Information

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IPC IPC(8): D21H21/40
Inventor 王平王艳英
Owner BAODING BANKNOTE PAPER CO LTD
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