Photosensitive grain-free printing plate and manufacturing method and application thereof

A non-grit, photosensitive technology, applied in the fields of printing and printing plate preparation, can solve problems such as environmental pollution and increase in plate cost, and achieve the effects of protecting the environment, saving electricity consumption, and simplifying the preparation process.

Inactive Publication Date: 2014-02-19
BEIJING ZHONGKE NANO THINK PRINT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of acid and alkali must be used to pretreat the aluminum plate during anodic oxidation, and the waste liquid of acid and alkali not only easily causes great pollution to the environment, but also increases the overall cost of the plate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Evenly spray zinc oxide with a particle size of 3000nm on the aluminum plate, and then coat a layer of photosensitive liquid on it by spin coating method, and dry it to obtain a photosensitive non-gritty printing plate.

[0033] Described photosensitive liquid is by 2-diazo-1-naphthol-4-sulfonyl chloride and the product 8g that BTB225 phenolic resin reacts and obtains (2-diazo-1-naphthol-4-sulfonyl chloride and the hydroxyl The molar ratio of functional groups is 1:1), 0.5g of oil-soluble blue, 20g of epoxy resin, 35g of ethylene glycol monomethyl ether, and 35g of ethylene glycol monoethyl ether.

Embodiment 2

[0035] Evenly spray cerium oxide with a particle size of 200nm on an aluminum plate, and then coat a layer of photosensitive liquid on it by spin coating, and dry it to obtain a photosensitive non-gritty printing plate.

[0036]Described photosensitive liquid is obtained by the product 8g that 2-diazo-1-naphthol-4-sulfonyl chloride and butanol react (the mol ratio of 2-diazo-1-naphthol-4-sulfonyl chloride and butanol is 1:20), 0.5g of oil-soluble blue, 20g of epoxy resin, 35g of methyl ethyl ketone, and 35g of dioxane.

Embodiment 3

[0038] Evenly disperse alumina with a particle size of 3000nm in phenolic resin, and then coat it on a copper plate. The mass ratio of alumina and phenolic resin is 1:10; finally, coat a layer of photosensitive liquid on it by spin coating, and dry it. , That is, a photosensitive non-gritty printing plate.

[0039] The photosensitive liquid is 10g (2-diazo-1-naphthol-4 - The molar ratio of sulfonyl chloride and the hydroxyl functional group of poly(p-hydroxystyrene) is 1:5), 0.4g of Victoria pure blue, 15g of polyvinyl formal resin, and 80g of solvent dioxane.

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PUM

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Abstract

The invention discloses a photosensitive grain-free printing plate and a manufacturing method of the photosensitive grain-free printing plate. The photosensitive grain-free printing plate is composed of a printing plate substrate, a hydrophilic layer and a photosensitive layer, wherein the printing plate substrate is sequentially coated by the hydrophilic layer and the photosensitive layer. According to the photosensitive grain-free printing plate and the manufacturing method of the photosensitive grain-free printing plate, the surface of the printing plate substrate is coated with nanoscale and / or micron-scale particles or composition containing nanoscale and / or micron-scale particles to obtain the hydrophilic coating, and the obtained hydrophilic layer has proper roughness, so that the surface of the printing plate substrate has hydrophilia and water retentivity. Due to the existence of the nanoscale and / or micron-scale hydrophile particles in the hydrophilic layer, not only is the ink absorption requirement met, but also the abrasion performance of the surface of the printing plate substrate is improved, and meanwhile, the adhesive force between the hydrophilic layer and the printing plate substrate as well as the photosensitive layer is good. According to the photosensitive grain-free printing plate and the manufacturing method of the photosensitive grain-free printing plate, not only is the performance of an existing photosensitive printing plate improved, but also it is avoided that the environment is polluted by waste acid and waste lye generated when an aluminum printing plate is electrolyzed and oxidized by the existing photosensitive printing plate, meanwhile, water using amount is saved by 70%, and electricity using amount is saved by 50% or so.

Description

technical field [0001] The invention belongs to the technical field of printing plate preparation, and in particular relates to a photosensitive non-gritty printing plate and a preparation method thereof, which are applied in the printing field. Background technique [0002] With the wide application of computer technology in the printing industry, CTP technology has gradually gained the attention of printing companies. For CTP technology, the quality and application of CTP plates are the key to ensure the quality of plate making. After more than ten years of development, CTP technology has gradually formed three categories: thermal CTP plates, silver salt CTP plates and photosensitive CTP plates. The production process of the photosensitive plate is: plate base cleaning - degreasing - cleaning - electrolytic sand mesh - washing - ash removal - washing - oxidation - washing - sealing - washing - drying - coating solution - drying - cutting - packaging . The main features ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41N3/03G03F7/004
CPCG03F7/11G03F7/022G03F7/0233G03F7/038
Inventor 宋延林杨明沙栩正刘云霞吴为王坤婵
Owner BEIJING ZHONGKE NANO THINK PRINT TECH
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