Anti-forge coating white cardboard and producing method thereof

A production method and technology for white cardboard, applied in coating, paper, papermaking, etc., can solve the problems of complicated equipment, increased equipment, and large investment, and achieve the effect of uniform pattern distribution and increased imitation difficulty.

Active Publication Date: 2006-03-29
ZHUHAI S E Z HONGTA RENHENG PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The anti-counterfeiting technology of paper in the prior art includes metal anti-counterfeiting thread and watermark: (1) metal anti-counterfeiting thread, metal fiber is sprayed into the forming part of papermaking, and special equipment is required. Although the anti-counterfeiting effect is good, the equipment is complicated and the investment is large.
(2) Watermarking, which is an earlier paper anti-counterfeiting technology, installs a special watermarking roller on the screen, or uses a circular cage engraved with a pattern to generate a watermark pattern. The watermark pattern is easy to imitate and is only suitable for low-end Quantitative paper grades have certain limitations for high quantitative paper grades, and need to add equipment and carry out paper machine transformation, which requires a large investment

Method used

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  • Anti-forge coating white cardboard and producing method thereof
  • Anti-forge coating white cardboard and producing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Pulping

[0026] ① Face paper layer: The pulp board of the face paper layer is crushed by a hydropulper and beaten (if it is self-made pulp, it is directly beaten), and then it is batched, and the prepared pulp is sent to a paper machine for papermaking.

[0027] ②Bottom paper layer: The pulp board of the bottom paper layer is crushed by a hydropulper and beaten (if it is self-made pulp, it is directly beaten), and then it is batched, and the resulting pulp is sent to the paper machine for papermaking.

[0028] 2. Adding patterns

[0029] Personalized anti-counterfeiting patterns are sprayed between the surface and the bottom layer in the wire section of the paper machine through its unique flow delivery system.

[0030] 3. Papermaking

[0031] ① The top paper layer pulp and the bottom paper layer pulp made by papermaking are sent to the top wire and bottom wire of the paper machine for papermaking, and then pressed, dried, coated, and finally calendered.

[0032]...

Embodiment 2

[0036] Anti-counterfeiting coated white cardboard is composed of surface paper layer, core paper layer and bottom paper layer. Its production method is as follows:

[0037] 1. Pulping

[0038] ① Face paper layer: The pulp board of the face paper layer is crushed by a hydropulper and beaten (if it is self-made pulp, it is directly beaten), and then it is batched, and the prepared pulp is sent to a paper machine for papermaking.

[0039] ② Core paper layer: The pulp board of the core paper layer is disintegrated or beaten after being crushed by a hydraulic pulper (if it is self-made pulp, it is directly deflated or beaten), and then it is batched, and the prepared pulp is sent to the paper machine for processing. Copy.

[0040] ③Bottom paper layer: The pulp board of the bottom paper layer is crushed by a hydraulic pulper and then beaten (if it is self-made pulp, it is directly beaten), and then it is batched, and the resulting pulp is sent to the paper machine for papermaking. ...

Embodiment 3

[0049] The process conditions are the same as in Example 2. After the paper sheet is formed, a layer of pattern is sprayed on the back side of the paper sheet, and the spray point can be selected before or after the back coating.

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PUM

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Abstract

The present invention discloses a kin of anti-false coated white card paper. It is characterized by that in the coated white card paper a pattern layer is formed by means of spraying mode. The described patter layer can be colourless or coloured or fluorescent. Said pattern layer can be one layer or several layer, and can be various regular or irregular graphs of straight line, curve, company mark and LOGO of customer, etc. and can be set in the interlayer of coated white card paper or between face paper layer and core paper layer or between core paper layer and bottom paper layer. Its production method includes the following steps: (1) making pulp; (2). Making face paper layer, core paper layer and bottom paper layer; and (3). Spraying at least on layer of pattern.

Description

Background technique [0001] The invention relates to an anti-counterfeiting coated white cardboard and a production method thereof. Background technique [0002] The anti-counterfeiting technology of paper in the prior art includes metal anti-counterfeiting thread and watermark: (1) metal anti-counterfeiting thread, metal fiber is sprayed into the forming part of papermaking, and special equipment is required. Although the anti-counterfeiting effect is good, the equipment is complicated and the investment is large. (2) Watermarking, which is an earlier paper anti-counterfeiting technology, installs a special watermarking roller on the screen, or uses a circular cage engraved with a pattern to generate a watermark pattern. The watermark pattern is easy to imitate and is only suitable for low-end Quantitative paper grades have certain limitations to high quantitative paper grades, and need to add equipment and carry out paper machine transformation, which requires a large inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/40D21H19/00D21H23/24D21H23/50D21H21/30D21H27/32
Inventor 林云
Owner ZHUHAI S E Z HONGTA RENHENG PAPER
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