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Watermark high-definition copperplate paper and manufacture technique thereof

A high-definition, manufacturing technology, applied in the direction of mechanical processing/deformation, coating, etc., can solve the problems of printing quality, printing cost, adaptability and anti-counterfeiting and anti-counterfeiting functions, uneven distribution of pulp fiber density, base paper base surface Concave-convex uneven problem, to achieve the effect of low tightness, good for ink absorption, and thick coating

Inactive Publication Date: 2007-08-15
石家庄中康纸业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The printing quality, printing cost, adaptability and anti-counterfeiting anti-counterfeiting functions of the increasing number of high-end books, picture albums, wrapping paper, and tickets can no longer meet the needs. How to apply traditional and effective anti-counterfeiting technologies, such as watermarking technology used on banknotes, to Applied to the production of coated paper has become a topic of concern in this industry
However, watermark paper is made by pressing and finishing the wet paper web with engraved watermark rollers during the papermaking process, resulting in uneven distribution of pulp fiber density
After the paper is dried, the watermark pattern can be displayed, but the obvious unevenness of the base surface of the original paper is retained
For high-grade coated paper used to print fine and beautiful pictures, it is obvious that it cannot be used as base paper for coating processing, because in the art paper process in the prior art, only special coated base paper can be used as the base paper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The ink-absorbing layer coating mentioned in the operation 1. can be prepared according to the following weight component ratio:

[0016] Silica: 20-90 parts

[0017] China clay: 40-5 parts

[0018] Light calcium carbonate: 40-5 parts

[0019] Polyvinyl alcohol 10%: 50-170 parts

[0020] Vinyl acetate-ethylene copolymer emulsion: 35-80 parts

[0021] Cationic color fixing agent: 15-20 parts

[0022] Hexasulfonic acid: 3-6 parts

[0023] n-Butanol: 2-6 parts.

[0024] The ink-absorbing layer coating mentioned in the operation 1. can also be prepared according to the following weight component ratio:

[0025] Polyvinyl alcohol 10%: 50-80 parts

[0026] Silica: 30 parts

[0027] Polyvinylpyrrolidone 10%: 20-50 parts

[0028] Cationic color fixing agent: 5-10 parts

[0029] Hexasulfonic acid: 3-5 parts.

[0030] The average particle size of the above-mentioned silica is 2-9 µm.

[0031] The high-gloss layer coating mentioned in the above process ② is prepared ac...

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Abstract

The invention relates to a method for producing watermark high-resolution copper plate paper, wherein the copper plate paper is made by uniformly coating the high-solid-content paint of mixed white paint and adhesive on the base paper, to be dried and composed with watermark paper. The invention comprises following steps that 1, selecting glazed printing paper as base paper, using coating machine to mix white paint and adhesive into ink adsorption paint to be coated, 2, uniformly coating the highlight layer made fro mixing silicon gel or aluminum gel and adhesive via casting machine on the ink-adsorption paint. And the step 3 has a process synchronous with the step 2 comprises that using auxiliary press roller of casting machine to compose the watermark paper with back adhesive and the base paper not coated with paint into single-face watermark high-resolution copper plate paper, 4, using the mirror cylinder of casting machine to dry and dewater the base paper with secondary coating to complete rolling and polishing, 5, furnishing, cutting and coiling.

Description

technical field [0001] The invention relates to the improvement of the art paper and its production process, in particular to the improvement of the special art paper with anti-counterfeiting function and its production process. Background technique: [0002] With the development of society and the diversification of economic activities, the use of coated paper with high-grade color printing performance is increasing, and the reduction of the printed image is required to be higher and higher. At the same time, it is also required to have a certain anti-counterfeiting function to protect the author's copyright from being violated. Traditional coated paper uses special copper base paper as the base paper, coated with a layer of white paint composed of calcium carbonate, china clay white pigments and binders. There are two types of one-side coating and double-side coating. After drying, it is polished by a super calender to make high-grade printing coated paper. The coated pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B31F1/00C09D131/04C09D5/00C09D129/04
Inventor 康文朝徐永射崔敏康文玺王明杰
Owner 石家庄中康纸业有限公司
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