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A heat-sensitive plate that can be directly printed on the machine without processing

A process-free, heat-sensitive technology, applied in the direction of photosensitive materials used in optomechanical equipment, which can solve the problems of poor plate developing ability and printing durability.

Active Publication Date: 2019-12-10
LUCKY HUAGUANG GRAPHICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to solve the shortcomings of poor developing ability and printing durability of the plate existing in the existing process-free thermal CTP plate technology. The present invention designs a process-free thermal plate that can be directly printed on the machine. The plate includes Support, thermosensitive layer and protective layer, wherein the thermosensitive layer mainly contains water-soluble thermally crosslinked copolymer, crosslinking agent, multifunctional monomer, thermosensitive initiator and infrared radiation absorbing dye

Method used

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  • A heat-sensitive plate that can be directly printed on the machine without processing
  • A heat-sensitive plate that can be directly printed on the machine without processing
  • A heat-sensitive plate that can be directly printed on the machine without processing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Embodiment 1 (copolymer P01)

[0074] 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 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, dropwise time 20 minutes, 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

[0075] Embodiment 2 (copolymer P02)

[0076] Add 344.8g of methyl ethyl ketone and 10g (10% by weight) of the exemplary compound D4 (n about 50) in 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) example compound C3, 0.7g AIBN (azobisisobutyronitrile), adding time 20 After another 7.5 hours of reaction, 0.3g of AIBN (azobisisobutyronitrile) was added, and the reaction was continued for another 12 hours before ending. See attached table 1 for performance.

Embodiment 3

[0077] Embodiment 3 (copolymer P03)

[0078] Add 384.6g of methyl ethyl ketone and 10g (10% by weight) of the exemplary compound D4 (n about 40) to a 1000ml four-necked flask with temperature-controlled heating, mechanical stirring, condensing 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) example compound C2, 0.7g AIBN (azobisisobutyronitrile), adding time 20 After another 7.5 hours of reaction, 0.3g of AIBN (azobisisobutyronitrile) was added, and the reaction was continued for another 12 hours before ending. See attached table 1 for performance.

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Abstract

The invention discloses a processless thermal sensitive plate used for direct printing on a printer. The processless thermal sensitive plate comprises a support body, a thermal sensitive layer and a protective layer, wherein the thermal sensitive layer mainly comprises 30-70% of water soluble thermo-crosslinking polymer, 1-15% of cross-linking agent, 10-30% of polyfunctional group monomer, 1-20% of thermal sensitive initator and 1-20% of infrared light radiation absorbing dye according to percentage by weight based on the composition solid total weight. The shortcomings of low plate developing capacity and bad printing durability in the existing processless thermal sensitive CTP (computer to plate) technology are solved.

Description

technical field [0001] The invention belongs to the technical field of lithographic printing, and relates to a heat-sensitive plate that can be directly printed on a machine without processing. 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 a new generation of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/004
Inventor 宋小伟张刚高峰杨青海许文然李喜乐刘阳孙国敏
Owner LUCKY HUAGUANG GRAPHICS