Method for removing photopolymers from metal substrates

Details Method for removing photopolymers from metal substrates Method for removing photopolymers from metal substrates

1977-07-18

1978-09-26

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

Using solid work treating agents

101423, 101424, 101467, 134 38, B08B 100, B08B 310

Patent

active

041167155

ABSTRACT:
A developed photopolymer layer is completely removed from a support substrate of a printing plate. Such photopolymer is developed by photoinitiated polymerization from at least one water-soluble ethylenic monomer and includes a partially saponified polyvinyl acetate. For removal, the photopolymer layer is immersed in boiling water for sufficient time to swell the layer and then the swollen polymer is scraped from the printing plate.

REFERENCES:
patent: 3063873 (1962-11-01), Saroyan
patent: 3766076 (1973-10-01), Murphy
patent: 3796602 (1974-03-01), Briney et al.
patent: 3801328 (1974-04-01), Takimoto et al.
patent: 3928113 (1975-12-01), Rosenberg
patent: 3980587 (1976-09-01), Sullivan

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