Water-developable chemistry-free thermosensitive board and preparation method thereof

A chemical-free, water-developing technology, which is applied to printing plates, printing, and printing processes, can solve the problems of poor water-developing ability and printing durability of plates, and achieve improved water developing ability, improved printing durability, and strong Hydrophilic effect

Active Publication Date: 2015-07-01
LUCKY HUAGUANG GRAPHICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The technical problem to be solved by the present invention is that the water developing ability and printing durability of the plate material existing in the existing chemical treatment-free thermal CTP plate technology...

Method used

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  • Water-developable chemistry-free thermosensitive board and preparation method thereof
  • Water-developable chemistry-free thermosensitive board and preparation method thereof
  • Water-developable chemistry-free thermosensitive board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment （1）

[0070] Embodiment (1) (water-soluble thermally cross-linked copolymer P01)

[0071] Add 333.3g of methyl ethyl ketone and 10g (10% by weight) of example compound D2 (n about 60) into a 1000ml four-necked flask equipped with temperature-controlled heating, mechanical stirring, reflux and nitrogen protection device, heat and stir evenly, and add dropwise at 90°C 70g (70% by weight) St (styrene), 10g (10% by weight) AN (acrylonitrile), 10g (10% by weight) example compound C2, 0.7g benzoyl peroxide BPO, adding time 20 minutes, and then After 7.5 hours of reaction, add 0.3g of benzoyl peroxide BPO, and continue to react for another 12 hours before ending. See attached table 1 for performance.

Embodiment （2）

[0072] Embodiment (2) (water-soluble thermally cross-linked copolymer P02)

[0073] Add 344.8g of methyl ethyl ketone and 10g (10% by weight) of the exemplary compound D4 (n about 50) into a 1000ml four-necked flask with temperature-controlled heating, mechanical stirring, reflux and nitrogen protection device, heat and stir evenly, and add dropwise at 80°C 60g (60% by weight) St (styrene), 20g (20% by weight) AN (acrylonitrile), 10g (10% by weight) of example compound C3, 0.7g of AIBN (azobisisobutyronitrile), and the addition time was 20 minutes After another 7.5 hours of reaction, 0.3g of AIBN (azobisisobutyronitrile) was added, and the reaction was continued for another 12 hours.

Embodiment （3）

[0074] Embodiment (3) (water-soluble thermally cross-linked copolymer P03)

[0075] Add 384.6g of methyl ethyl ketone and 10g (10% by weight) of example compound D4 (n about 40) into a 1000ml four-necked flask equipped with temperature-controlled heating, mechanical stirring, reflux and nitrogen protection device, heat and stir evenly, and add dropwise at 80°C 50g (50% by weight) St (styrene), 30g (30% by weight) AN (acrylonitrile), 10g (10% by weight) of example compound C2, 0.7g of AIBN (azobisisobutyronitrile), adding time 20 minutes After another 7.5 hours of reaction, 0.3g of AIBN (azobisisobutyronitrile) was added, and the reaction was continued for another 12 hours.

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Abstract

The invention discloses a water-developable chemistry-free thermosensitive board and a preparation method thereof. The water-developable chemistry-free thermosensitive board is environment-friendly, and by the water-developable chemistry-free thermosensitive board, cationic cross linking and free radical polymerization can be generated simultaneously. The technical problem that the water-developable capability and the pressing resistance of a chemistry-free thermosensitive CTP (computer-to-plate) board in the prior art is solved. The water-developable chemistry-free thermosensitive board comprises a supporting body, a thermosensitive layer and a protecting layer; and the thermosensitive layer comprises the following raw materials in part by weight: 30-70 parts of water-soluble thermo-crosslinking copolymers, 10-50 parts of performed polymers containing hydrophilic radicals, 10-30 parts of polyfunctional monomers, 1-20 parts of cationic initiators and 1-20 parts of infrared radiation absorption dyes. By the technical scheme, water development can be carried out directly after infrared laser scanning imaging is performed, imaging contrast is high, boards can be detected before being machined, and printing resistance is high.

Description

technical field [0001] The invention relates to the technical field of lithographic printing, in particular to a water-developable chemical-treatment-free thermosensitive plate and a manufacturing method thereof. Background technique [0002] Lithographic printing technology has moved from traditional laser phototypesetting film copying PS plate technology to computer-to-plate technology (CTP technology for short), and CTP plate materials are gradually becoming popular. There are many types of CTP plates, and the more popular ones include silver salt diffusion CTP plates, UV-CTP plates, purple laser polymerization CTP plates, thermal CTP plates, etc. The most widely used one is thermal CTP plate. [0003] CTP plate making technology requires a development process with a developer containing a variety of toxic organic substances or strong alkalis, and there are environmental problems caused by the treatment of toxic and harmful waste liquids. At present, the development of ...

Claims

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Application Information

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IPC IPC(8): B41N1/14
Inventor 宋小伟张刚杨青海高峰刘松玲张攀
Owner LUCKY HUAGUANG GRAPHICS
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