Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Post imaging radiant energy exposure
Patent
1982-08-19
1983-11-15
Kittle, John E.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Post imaging radiant energy exposure
430309, 430331, G03C 514
Patent
active
044156545
ABSTRACT:
Disclosed is the improvement in post-exposing relief printing plates prepared from photosensitive polymeric compositions which comprises immersing the relief printing plate in a dilute aqueous solution of a persulfate salt and a sufficient amount of a water-soluble carboxylic acid to provide a pH of about 1.5 to about 2.5 during exposure to actinic radiation.
REFERENCES:
patent: 3051603 (1962-08-01), Michaels
patent: 3061595 (1962-10-01), Dorion et al.
patent: 3723120 (1973-03-01), Hummel
Craft Jeffrey F.
Hamilton Cynthia
Hercules Incorporated
Kittle John E.
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