Production of non-tacky, smooth surfaces of photopolymer relief

Details Production of non-tacky, smooth surfaces of photopolymer relief Production of non-tacky, smooth surfaces of photopolymer relief

1986-06-20

1988-02-16

Kittle, John E.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

430306, 430328, 430286, 1014631, 101467, G03F 700

Patent

active

047255285

ABSTRACT:
Non-tacky, smooth, structureless surfaces of photopolymer relief printing plates for flexographic printing, whose relief layers are prepared in a conventional manner by exposing the photopolymerizable relief-forming layers of flexographic printing plates imagewise to actinic light and washing out the unpolymerized, unexposed areas with a suitable solvent, are produced by a process in which the flexographic printing plates are after-treated with a liquid medium which contains elemental bromine or is capable of forming elemental bromine, and then washed with a neutralization bath, one or more paraffinsulfonates, fatty alcohol ethersulfates or alkyl phosphates or a cationic or anionic surfactant possessing one or more perfluorinated carbon chains being employed in the bromine-containing, liquid medium.
The relief printing plates obtained according to the invention are used for flexographic printing.

REFERENCES:
patent: 4400459 (1983-08-01), Gruetzmacher et al.
patent: 4400460 (1983-08-01), Fickes et al.
patent: 4478931 (1984-10-01), Fickes et al.
patent: 4603058 (1986-07-01), Adams

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