Developing solution for light-sensitive printing plates

Details Developing solution for light-sensitive printing plates Developing solution for light-sensitive printing plates

1983-04-29

1984-09-04

Downey, Mary F.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

430193, 430331, G03F 708, G03C 524

Patent

active

044697767

ABSTRACT:
A developing solution for a light-sensitive printing plate having an o-quinonediazide-containing light-sensitive layer is disclosed. The developing solution is comprized of an aqueous solution of alkali silicate and a chelating agent. By including the chelating agent within the developing solution it is possible to carry out development utilizing water which contains typical impurities such as insoluble calcium silicate or magnesium silicate for a long period of time which substantially has no formation of insoluble matter within the developing machine. Use of the developing solution substantially eliminate the formation of any deposit within the spraying pipes and nozzles of the developing machine which it is used in connection with.

REFERENCES:
patent: 3201241 (1965-08-01), Munder et al.
patent: 3475171 (1969-10-01), Alles
patent: 3615480 (1971-10-01), Lam
patent: 4093464 (1978-06-01), Ruckert et al.
patent: 4123279 (1978-10-01), Kobayashi
patent: 4259434 (1981-03-01), Yamasue et al.
patent: 4314022 (1982-02-01), Fisch
patent: 4374920 (1983-02-01), Wanat et al.

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