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Negative photosensitive composition and negative photosensitive lithography plate

A photosensitive composition and negative-type technology, applied in lithographic printing equipment, printing, printing technology, etc., can solve the problems of reduced sensitivity and poor storage stability, and achieve high sensitivity, excellent printing resistance, and excellent storage stability. Effect

Inactive Publication Date: 2007-05-02
柯达彩色绘图日本株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, this negative-tone photosensitive lithographic printing plate has a problem that the sensitivity decreases with time from the time of manufacture, and the storage stability is poor.

Method used

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  • Negative photosensitive composition and negative photosensitive lithography plate
  • Negative photosensitive composition and negative photosensitive lithography plate
  • Negative photosensitive composition and negative photosensitive lithography plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0192] As shown in the compounding table of Table 1, 0.2 g (2% by mass) of near-infrared-absorbing cationic dye (A) represented by the following formula (A) (manufactured by Showa Denko, IRT) as (A) infrared absorbing agent 0.6 g (0.6% by mass) of an organoboron compound (B1) represented by the following formula (B1) (manufactured by Showa Denko, P3B) as (B) an organoboron compound, and the above-mentioned [Chem. 15] as a  salt 0.9 g (9 mass %) of the indicated  salt (manufactured by Wako Pure Chemical Industries, Ltd.), 3.0 g (30 mass %) of dipentaerythritol hexaacrylate (manufactured by Nippon Kayaku) as (C) a compound having a polymerizable unsaturated group ), as (D) binder resin, 4.8 g (48 mass %) of the above-mentioned binder resin (D1), as a surfactant, DC-190 (10%, ethylene glycol monomethyl ether solution, i 0.2 g of ストトマンコダツクカソパニニ) and 0.3 g of crystal violet (manufactured by Hodo Ketani Chemical Co., Ltd.) as a coloring material were dissolved in a solvent consist...

Embodiment 2-5

[0199] [Example 2-5, Comparative Example 1-2]

[0200] Except having changed the compounding of the coating liquid like Table 1, it carried out similarly to Example 1, the negative photosensitive planographic printing plate was produced, and it evaluated. Table 2 shows the evaluation results. Here, the organoboron compound (B2) in Table 1 is a compound (manufactured by Showa Denko, NP3B) represented by the following formula (B2), and the  salt (2) is the  salt represented by the following formula (2) ( manufactured by Wako Pure Chemical Industries, Ltd.), and the  salt (3) is a  salt represented by the following formula (3) (manufactured by Wako Pure Chemical Industries, Ltd.).

[0201] Element

[0202] [chemical 19]

[0203]

[0204] [chemical 20]

[0205]

[0206] [chem 21]

[0207]

[0208] [chem 22]

[0209]

[0210] [chem 23]

[0211]

[0212] [chem 24]

[0213]

[0214]

[0215] It is clear from the results in Table 2 tha...

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Abstract

Disclosed is a negative working photosensitive composition comprising (A) an infrared absorber, (B) an organic boron compound, (C) a compound having a polymerizable unsaturated group, and (D) a binder resin having a sulfonamide or active imino group.

Description

technical field [0001] The present invention relates to a negative-type photosensitive composition and a negative-type photosensitive lithographic printing plate used in the field of lithography, and in particular to a so-called photosensitive lithographic printing plate capable of directly forming an image by irradiating infrared rays from a solid-state laser or a semiconductor laser based on a digital signal. A negative-tone photosensitive lithographic printing plate for use in computer-to-printing plate (CTP) plates, and a negative-tone photosensitive composition very suitable for use in the photosensitive layer of such a lithographic printing plate. [0002] This application claims priority to Patent Application No. 2004-155270 filed with Japan Patent Office on May 25, 2004, the contents of which are incorporated herein by reference. Background technique [0003] In recent years, with the advancement of computer image processing technology, a method of directly writing a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/033C08F2/50C08F20/00G03F7/00G03F7/004G03F7/029G03F7/038B41C1/10
CPCC08F220/36C08F220/40G03F7/033G03F7/029C08F220/38B41C1/1008B41C1/1016B41C2201/02B41C2201/14B41C2210/04B41C2210/06B41C2210/22B41C2210/24C08F220/387
Inventor 樱井荣男早川英次
Owner 柯达彩色绘图日本株式会社
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