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Imaging liquid for thermosensitive CTP (cytidine triphosphate) plate

An imaging solution and plate technology, which is applied in the direction of photosensitive materials used in optomechanical equipment, can solve the problem that the printing endurance needs to be improved, and achieve the effects of improving the printing endurance, saving production costs and good application value.

Active Publication Date: 2012-12-26
成都星科印刷器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inventors found that the printing durability of this type of imaging liquid still needs to be improved.

Method used

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  • Imaging liquid for thermosensitive CTP (cytidine triphosphate) plate
  • Imaging liquid for thermosensitive CTP (cytidine triphosphate) plate
  • Imaging liquid for thermosensitive CTP (cytidine triphosphate) plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 Preparation of imaging liquid of the present invention

[0030] Get 75g film-forming resin, 2g infrared dye, 5g polyamide, 2g crosslinking agent, 1g surfactant, 2g colored background dye, 704g of mixed solvent of 70% propylene glycol methyl ether and 30% butanone, each component is dissolved in In the mixed solvent, the imaging liquid is obtained;

[0031] Wherein, the film-forming resin is BTB-25 phenolic resin;

[0032] The infrared dye is (model: TR-8131)

[0033]

[0034] Polyamide is an acid generator with a weight average molecular weight of 1200~4000.

[0035] The crosslinking agent is a copolymer of methyl methacrylate and ethyl methacrylate, and its weight average molecular weight is 6800~12000.

[0036] Surfactant is siloxane, and its structural formula is as follows:

[0037]

[0038] n is 15-25.

[0039] The coloring background dye is crystal violet.

Embodiment 2

[0040] Embodiment 2 Preparation of imaging liquid of the present invention

[0041] As in Example 1, wherein the film-forming resin is BTB-26G, and the colored background dye is Basic Brilliant Blue. The beneficial effects of the present invention will be specifically described below through test examples.

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Abstract

The invention provides an imaging liquid for a thermosensitive CTP (cytidine triphosphate) plate, which comprises the following components by weight: the solute of the imaging liquid comprising 75-90 parts of film forming resin, 2-5 parts of infrared dye, 5-10 parts of acid production agent, 2-6 parts of cross-linking agent, 1-2 parts of surface active agent, and 2-5 parts of background coloring dye solvent, and the imaging liquid with the weight ratio of the solute to the solvent being (10-15) to (85-90); and the acid production agent is polyamide. According to the imaging liquid, after components in the imaging liquid such as the acid production agent and the like are improved and on the basis that the imaging effect is ensured, the pressrun of the imaging liquid is effectively improved, and the production cost is greatly saved, therefore, the imaging liquid provided for the thermosensitive CTP plate has good application value.

Description

technical field [0001] The invention provides an imaging liquid for heat-sensitive CTP plates. Background technique [0002] Thermal plates utilize thermal imaging technology so they can be processed under yellow light or UV-filtered daylight. The thermal CTP plate is divided into two types: negative working type and positive working type. The negative working CTP plate exposes part of the image and text during infrared scanning, and the positive working type exposes the non-image and text part. Positive thermal plates are cross-linked photosensitive polymer plates. On this plate, a laser images the non-printed parts of the plate, and the thermal laser beam breaks down the photopolymer, making the imaged areas soluble during development, while the unexposed parts remain insoluble. Since this process is the same as making a printing plate with a positive film, it is called a "positive" heat-sensitive plate. The laser beam power required by this plate is relatively small. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/004
Inventor 叶平
Owner 成都星科印刷器材有限公司
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