Burn-in gumming composition for offset printing plates

Details Burn-in gumming composition for offset printing plates Burn-in gumming composition for offset printing plates

1988-09-06

1989-12-05

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

430325, 430326, 430331, G03C 152

Patent

active

048852309

ABSTRACT:
A burn-in gumming composition for irradiated and developed offset printing plates comprises water and a water-soluble polymer or copolymer for protecting the plate surface during the burning-in step and during long-term storage. The polymer or copolymer used contains sulfonic acid groups and/or alkali metal sulfonate or ammonium sulfonate groups.

REFERENCES:
patent: 3885969 (1975-05-01), Kruck
patent: 4191570 (1980-03-01), Herting et al.
patent: 4340655 (1982-07-01), Hamster et al.
patent: 4424273 (1984-01-01), Franco et al.
patent: 4520088 (1985-05-01), Senga et al.
patent: 4578342 (1986-03-01), Sekiya

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