Deleting agents for printing plates and method for deletion

Details Deleting agents for printing plates and method for deletion Deleting agents for printing plates and method for deletion

1982-09-27

1984-04-17

Downey, Mary F.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430205, 430309, 430331, G03F 700

Patent

active

044435312

ABSTRACT:
Disclosed are a deletion fluid for offset printing plates which contains an S-triazine compound represented by the following general formula: ##STR1## (wherein R.sub.1 and R.sub.2 represent --SH or --OH and when either one of R.sub.1 or R.sub.2 is --SH, the other may be NHR wherein R is H or --R'---COOH wherein R' is an alkylene group or arylene group) and a method for deletion of undesired portion of images formed on an offset printing plate with said deletion fluid.

REFERENCES:
patent: 2375733 (1945-05-01), Kaiser
patent: 2476536 (1949-07-01), Dersch
patent: 2676150 (1954-04-01), Loughran et al.
patent: 2996505 (1961-08-01), Schwarze
patent: 3017270 (1962-01-01), Tregillus et al.
patent: 3778368 (1973-12-01), Nakamura et al.
patent: 4230792 (1980-10-01), Tsubai

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