Method for making negative working O-quinone diazide containing

Details Method for making negative working O-quinone diazide containing Method for making negative working O-quinone diazide containing

1985-02-13

1987-09-01

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

430166, 430292, 430309, 430328, G03F 708

Patent

active

046908862

ABSTRACT:
A method for making a dry planographic printing plate, which comprises: exposing through a negative transparency a dry negative working presensitized plate comprising a base substrate having provided thereon, in order, a photosensitive layer containing an orthoquinonediazide compound and a silicone rubber layer; developing the exposed plate; exposing the developed plate to light so as to make its exposure value not less than 5% of the exposure value at the time of the exposure through the negative transparency; and then treating the exposed plate with a basic compound.

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patent: 4496647 (1985-01-01), Kowabe et al.

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