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Positive-type thermosensitive computer to plate (CPT) plate

A heat-sensitive and plate material technology, which is applied to photosensitive materials, printing plates, and printing used in optomechanical equipment, can solve the problems of poor thermal sensitivity, achieve good thermal sensitivity, high printing resistance, Printability reduction effect

Active Publication Date: 2012-11-21
ZHEJIANG KONITA NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of poor thermal sensitivity when using acrylate polymers as film-forming substances in thermal CTP plates in the prior art

Method used

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  • Positive-type thermosensitive computer to plate (CPT) plate
  • Positive-type thermosensitive computer to plate (CPT) plate
  • Positive-type thermosensitive computer to plate (CPT) plate

Examples

Experimental program
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Embodiment 1

[0029] The positive-type heat-sensitive CTP plate material described in this embodiment includes a substrate and a heat-sensitive layer coated on the substrate; the substrate described in this embodiment is an aluminum substrate, and as an optional implementation mode, also The substrate can be selected to be other substrates that can be used for thermal CTP technology;

[0030] The thermosensitive layer is composed of the following components by weight percentage:

[0031] Polymethyl acrylate, 45%;

[0032] 6-methyl-7-(2',4'-xylanilino)-3-diethylaminofluoran, 10%;

[0033] 1-p-methoxystyryl-3,5-bistrichloromethyltriazine, 40%;

[0034] Vinyl alkyl ethers of phenolic resins, 5%.

Embodiment 2

[0036] The positive-type heat-sensitive CTP plate material described in this embodiment includes an aluminum substrate and a heat-sensitive layer coated on the substrate;

[0037] The thermosensitive layer is composed of the following components by weight percentage:

[0038] Polyethylacrylate, 48%;

[0039] 3-Dibutyl-amino-6-methyl-7-anilinofluorane, 12%;

[0040] 1-p-methoxystyryl-3,5-bistrichloromethyltriazine, 36%;

[0041] Vinyl alkyl ethers of phenolic resins, 4%.

Embodiment 3

[0043] The positive-type heat-sensitive CTP plate material described in this embodiment includes an aluminum substrate and a heat-sensitive layer coated on the substrate;

[0044] The thermosensitive layer is composed of the following components by weight percentage:

[0045] Polybutylacrylate, 50%;

[0046] 3-Dibutyl-amino-6-methyl-7-anilinofluorane, 8%;

[0047] 1-methoxyphenyl-3,5-bistrichloromethyltriazine, 38%;

[0048] Vinyl alkyl ethers of phenolic resins, 4%.

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Abstract

The invention discloses a positive-type thermosensitive computer to plate (CTP) plate. The positive-type thermosensitive CTP plate comprises a base plate and a thermosensitive layer coated on the base plate; the thermosensitive layer consists of the following components in percentage by weight: 45 to 57 percent of acrylate polymer, 8 to 12 percent of substituted aniline fluorine, 30 to 40 percentof thermal acid generator, and 3 to5 percent of dissolution inhibitor. The acrylate polymer which accounts for 45 to 57 percent based on the total weight of the thermosensitive layer is used as a film forming material, so that the strain resistance capacity of the thermosensitive layer is improved, and in the printing process, when the CTP plate and a rubber blanket roller contacted with the CTP plate rotate synchronously, the problem that the thermosensitive layer is easy to wear is avoided. Meanwhile, the substituted aniline fluorine, the thermal acid generator and the dissolution inhibitorare added according to a certain weight ratio, and the several substances are matched and acted according to the certain weight ratio, so that the problems of low thermosensitivity and difficulty in dissolving during development after imaging caused by using the acrylate polymer as the film forming material are solved.

Description

technical field [0001] The invention relates to a positive-type heat-sensitive CTP plate, which belongs to the field of printing plates for lithographic offset printing. Background technique [0002] CTP plate-making technology is divided into photosensitive CTP plate-making technology and heat-sensitive CTP plate-making technology. Among them, thermal CTP plate-making technology is the most mature, most stable, and best printing effect plate-making technology. It has high printing quality and can be used in bright room. Operating under conditions and other significant advantages. In recent years, our country has been very active in the field of thermosensitive CTP plate research, but because it involves many technical problems that are not easy to solve, few products can successfully enter the market. It is of great significance to shorten the gap with the world's developed countries in terms of technological level. [0003] Thermal CTP technology mainly utilizes thermal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/09B41N1/08G03F7/004
Inventor 翁银巧胡玲玲陈翔风吴清国贾瑞丽
Owner ZHEJIANG KONITA NEW MATERIALS
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