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Cationic polymerization imaging composition for high-sensitive photopolymerization plate

An imaging composition and a technology of cationic polymerization, which are applied in the field of cationic polymerization imaging photosensitive compositions, can solve the problems of increasing operation steps and increasing costs, and achieve the effects of high sensitivity, high printing durability and good resolution

Active Publication Date: 2013-11-06
BEIJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coating of the protective layer not only increases the operation steps but also increases the cost

Method used

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  • Cationic polymerization imaging composition for high-sensitive photopolymerization plate
  • Cationic polymerization imaging composition for high-sensitive photopolymerization plate
  • Cationic polymerization imaging composition for high-sensitive photopolymerization plate

Examples

Experimental program
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Effect test

preparation Embodiment 1

[0039] Monomer A-13, That is, the synthetic method of 1-phenyl-1-vinyloxybutoxydimethylsilane:

[0040] Take a three-necked flask, add 8.5mL (0.0522mol) of 1-phenyldimethylchlorosilane to 200mL of tetrahydrofuran under nitrogen atmosphere, 16mL (0.1148mol) of triethylamine, magnetically stir, ice-water bath, and then add 4-hydroxybutyl Dissolve 13.5mL (0.1096mol) of vinyl ether in 80mL tetrahydrofuran, and add slowly dropwise; after the dropwise addition, remove the ice-water bath, return to room temperature and stir for 2 hours; filter, spin evaporate the solvent, and use 50mL n-hexane After extraction and filtration, the filtrate was concentrated at 70°C, and the concentrated product was decompressed with an oil pump to remove low-boiling impurities to obtain a colorless transparent liquid as a pure product with a yield of 79%.

preparation Embodiment 2

[0042] monomer That is, the synthesis of 1,1-diphenyl-7-vinyloxyethoxyheptamethyltetrasiloxane):

Embodiment 1

[0045] Get the BTB-26 m-cresol-formaldehyde resin (M W =4000, M n =1500)35g, add self-synthesized Photosensitive monomer 15g, mixed triaryl hexafluoroantimonate sulfonium salt PAG201 (provided by Changzhou Qiangli Electronic New Material Co., Ltd.) 0.5g, basic brilliant blue 0.1g, acetone 300g; first the resin was dissolved in acetone, stirred to make After it is completely dissolved, other components are added, and then filtered through filter cores with pore sizes of 10 μm, 5 μm, and 0.5 μm in sequence to obtain the cationic polymerization imaging composition PCL-1 for high-sensitivity photopolymerization plates.

[0046] A 1% NaOH aqueous solution was used as a developer.

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Abstract

The invention discloses a cationic polymerization imaging photosensitive composition for a photosensitive layer of a negative image high-sensitive photopolymerization plate for lithographic printing and belongs to the technical field of optical information recording materials. The cationic polymerization imaging composition contains a photosensitive monomer with silicon vinyl ether, film-forming resin, cationic photoinitiator, coloring background dye, and solvent. As the cationic polymerization imaging composition with the cationic polymerization photosensitive monomer is free of radical polymerization, the protection of a protective layer is not required; and as the photosensitive layer of the negative image high-sensitive photopolymerization plate, which has high sensitivity and pressrun, and good resolution factor, can be made by using the cationic polymerization imaging composition, a negative image violet laser CTP plate can be made.

Description

technical field [0001] The invention belongs to the technical field of optical information recording materials, and in particular relates to a cationic polymerization imaging photosensitive composition for a photosensitive layer of a negative high-sensitivity photopolymerization plate for lithography. Background technique [0002] In recent years, relying on digital technology to electronically process, store and output graphic information by computer, computer-to-plate technology (CTP technology) is one of them that has attracted much attention. CTP technology is a technology that uses highly directional light such as lasers to scan according to digital image information, thereby directly manufacturing printing plates without using lithographic printing films. CTP (computer to plate) plates are generally divided into three types: silver salt type, photopolymerization type, and thermal imaging type (heat sensitive). Since the launch of the Drupa2000 violet laser diode, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/075G03F7/004
Inventor 肖时卓
Owner BEIJING NORMAL UNIVERSITY
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