Light-sensitive lithographic printing plate having a light sensi

Details Light-sensitive lithographic printing plate having a light sensi Light-sensitive lithographic printing plate having a light sensi

1995-06-19

1997-10-14

Chu, John S.

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

430165, 430302, G03F 711, G03F 7023

Patent

active

056771010

ABSTRACT:
Disclosed is a light-sensitive lithographic printing plate which comprises an aluminum plate having a surface subjected to roughening treatment and then anodization treatment and colored by a solution containing a UV absorber so that at an absorption local maximum wavelength between 340 and 450 nm, reflection optical density DS is higher by 0.02 to 0.5 than that obtained when the surface is not colored, and a positive light-sensitive composition layer containing an o-quinonediazide compound and a clathrate compound provided by coating on the aluminum plate after coloration.

REFERENCES:
patent: 3181461 (1965-05-01), Fromson
patent: 3250727 (1966-05-01), Noll et al.
patent: 3511661 (1970-05-01), Rauner et al.
patent: 3545970 (1970-12-01), Giorgianni et al.
patent: 4968584 (1990-11-01), Nagashima et al.
patent: 5230988 (1993-07-01), Akiyama et al.
patent: 5254430 (1993-10-01), Nagashima et al.

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