Light-sensitive lithographic printing plate wherein the support

Details Light-sensitive lithographic printing plate wherein the support Light-sensitive lithographic printing plate wherein the support

1991-05-15

1992-05-05

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430156, 430165, 430281, 430286, 430302, 205201, 205220, G03C 177, G03F 7021, G03F 7027, C25D 544

Patent

active

051107104

ABSTRACT:
Disclosed is a light-sensitive lithographic printing plate which comprises an aluminum or aluminum alloy support having been pretreated and a light-sensitive layer provided thereon, wherein the surface of the support adjacent to the light-sensitive layer is treated by use of an aqueous solution containing at least one selected from the group consisting of nitric acid, nitrate, nitrous acid and nitrite. According to this invention, lithographic printing plates which are free from stain due to residual light-sensitive layer, excellent in developability, good in water retention at image area and excellent in press life, can be obtained.

REFERENCES:
patent: 3039910 (1962-06-01), Zelley
patent: 3166444 (1965-01-01), Ehren et al.
patent: 4116695 (1978-09-01), Mori et al.
patent: 4448475 (1984-05-01), Reznick
patent: 4492616 (1985-01-01), Pliefke et al.
patent: 4793903 (1988-12-01), Holmquist et al.
patent: 4824757 (1989-04-01), Aono et al.

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