Radiation process for producing colored photopolymer systems

Details Radiation process for producing colored photopolymer systems Radiation process for producing colored photopolymer systems

1974-08-27

1976-05-04

Brammer, Jack P.

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

96 35, 96 351, 96 48R, 96115P, G03C 500, G03C 524, G03C 700, G03C 168

Patent

active

039544680

ABSTRACT:
A colored image in a polymer binder is obtained by polymerization of a mixture comprising (1) at least one polymerizable monomer, (2) a halogen containing activator (free radical source), (3) a binder, and (4) at least one normally bleachable dye, dissolved in said mixture; the polymerization being accomplished by imagewise exposure of said composition to a suitable dose of radiation, and is accompanied by fixing of the dye to the photopolymer. As a consequence, the dyes lose their bleaching characteristic and when the exposed areas are developed with a strong acid such as one which would normally bleach the dye, the dye is leached from only the unexposed areas. If the developer also includes an aliphatic alcohol, the unexposed areas may be removed, leaving a relief image with color in the raised portions.

REFERENCES:
patent: 3351467 (1967-11-01), Sprague et al.
patent: 3418118 (1968-12-01), Thommes et al.
patent: 3512975 (1970-05-01), Munder et al.
patent: 3527639 (1970-09-01), Moraw
patent: 3554752 (1971-01-01), Hachmann et al.
patent: 3600179 (1971-08-01), Yamaoa et al.
patent: 3620748 (1971-11-01), Fichter, Jr.
patent: 3769023 (1973-10-01), Lewis et al.
patent: 3820993 (1974-06-01), Lewis et al.
patent: 3833373 (1974-09-01), Hazenbosch et al.

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