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Temperature-sensitive CTP type imaging coating

A coating and imaging technology, applied in the field of thermal CTP plate imaging coating, can solve the problems of low printing durability, poor solvent resistance, poor abrasion resistance, etc., to increase mechanical strength, increase solubility, and increase resolution. Effect

Inactive Publication Date: 2019-08-30
海宁市速美印刷科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Ordinary heat-sensitive CTP plates can only be used for printing with ordinary offset printing inks. They have poor adhesion to the plate base, brittle surface film, poor wear resistance, low printing durability when used as lithography, and poor solvent resistance, especially Lower run length for UV inks

Method used

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  • Temperature-sensitive CTP type imaging coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A heat-sensitive CTP plate imaging coating, which is a single-layer heat-sensitive CTP plate imaging coating, consists of the following components by weight: solvent-resistant resin: 30 parts; alkali-soluble resin: 8 parts; film-forming resin: 20 parts; solubilizer: 5 parts; added resin: 10 parts; solvent-inhibiting and solubilizing resin: 1 part; infrared absorbing dye: 5 parts; dye: 1 part.

[0034] Among them, the solvent-resistant resin is acrylamide-acrylate polymer; the film-forming resin is o- or p-toluenesulfonamide formaldehyde resin as the solubilizer; the solubilizer is sulfonate; the added resin is polyurethane polymer with a molecular weight of 2000- 10000; the infrared absorbing dye is a cyanine dye; the dye is ethyl violet.

Embodiment 2

[0036] A heat-sensitive CTP plate imaging coating, which is a single-layer heat-sensitive CTP plate imaging coating, differs from Example 1 in that it consists of the following components by weight: solvent-resistant resin: 35 parts; alkali-soluble Resin: 8 parts; Film-forming resin: 25 parts; Solubilizer: 6 parts;

Embodiment 3

[0038] A heat-sensitive CTP plate imaging coating, which is a single-layer heat-sensitive CTP plate imaging coating, differs from Example 1 in that it consists of the following components by weight: solvent-resistant resin: 35 parts; alkali-soluble Resin: 8 parts; film-forming resin: 30 parts; solubilizer: 5 parts; additive resin: 12 parts; solvent-inhibiting and solubilizing resin: 1 part;

[0039] Wherein, the solvent-resistant resin is polyacrylamide-tert-butylphenyl acrylate.

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Abstract

The invention discloses a temperature-sensitive CTP type imaging coating having good stability and coating property. The temperature-sensitive CTP type imaging coating is characterized in that the coating is composed of following components, including solvent resistant resin, alkali soluble resin, film forming resin, solubilizer, added resin, solubility-inhibiting and solubility-promoting resin, infrared absorbing dye and dye, wherein the alkali soluble resin is modified resin obtained by copolymerizing alkali soluble structural monomer, acrylamide structural monomer, and / or sulfonamide structural monomer, and the solubility-inhibiting and solubility-promoting resin is phenol etherified resin. The coating is advantaged in that CTP plates prepared by the above formula have better printing durability and solvent resistance and have relatively low sensitivity.

Description

technical field [0001] The invention relates to the technical field of CTP imaging coatings, in particular to a thermosensitive CTP plate imaging coating with good stability and coating property. Background technique [0002] The structure principle of CTP direct plate-setting machine is similar to that of imagesetter. The plate-making equipment is directly controlled by a computer, scanned and imaged by a laser, and then developed and fixed to generate a printing plate that can be directly printed on the machine. Computer-to-plate-making uses a digital workflow to directly convert text and images into numbers and directly generate printing plates, eliminating the need for film as a material, the process of manual imposition, and the semi-automatic or fully automatic printing process. [0003] The printing plate that is directly imaged by infrared laser scanning exposure is a kind of CTP plate, called thermal CTP plate. This heat-sensitive plate usually includes a hydrophi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/09G03F7/004
CPCG03F7/09G03F7/004
Inventor 徐燕张菊明高兰英章永洁张杰杨海涛朱殷荣高国良黄艳
Owner 海宁市速美印刷科技股份有限公司
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