Negative photosensitive composition and negative photosensitive lithographic printing plate

A negative photosensitive and composition technology, which is applied in the field used in China, can solve the problems of insufficient intensity of image parts, decreased sensitivity, and decreased sensitivity, and achieves the effects of excellent storage stability and high sensitivity.
CN1898604AActive Publication Date: 2007-01-17柯达彩色绘图日本株式会社
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
柯达彩色绘图日本株式会社
Publication Date
2007-01-17

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Abstract

The present invention relates to a negative photosensitive composition comprising (A) an infrared absorber, (B) an organoboron compound that functions as a polymerization initiator by using in combination with (A) the infrared absorber, (C) an onium salt , and (D) a compound having a polymerizable unsaturated group. By using the negative photosensitive composition of the present invention, it is possible to provide a negative photosensitive composition that can be cured by infrared rays, is less likely to be inhibited by oxygen during radical polymerization, and has excellent storage stability, and provides a The negative photosensitive lithographic printing plate directly forms an image by irradiating infrared rays irradiated from a solid-state laser or a semiconductor laser based on a digital signal without preheating, has high sensitivity, and has excellent printing resistance and storage stability.
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Description

technical field

[0001] This application claims priority corresponding to Japanese Patent Application No. 2003-431478 filed on December 25, 2003, and uses its contents.

[0002] The present invention relates to a negative photosensitive composition and a negative photosensitive lithographic printing plate used in the field of offset printing, in particular to a digital signal-based method for directly forming images by irradiating infrared rays emitted from solid-state lasers or semiconductor lasers, That is, a negative photosensitive lithographic printing plate used as a so-called computer-to-plate (CTP) plate, and a negative photosensitive composition suitable for the photosensitive layer of the above-mentioned lithographic printing plate. Background technique

[0003] In recent years, with the advancement of computer image processing technology, a method of writing an image on a direct photosensitive layer by irradiating light corresponding to a digital signal has been dev...

Claims

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