Process and device for treating a photographic recording materia

Details Process and device for treating a photographic recording materia Process and device for treating a photographic recording materia

1988-08-29

1989-08-01

Mathews, A. A.

354317, 354325, G03D 504

Patent

active

048537276

ABSTRACT:
Process and device for treating photosensitive recording material comprising a carrier layer and at least one photosensitive recording layer having a hardened image, e.g., halftone images, whereby undesirable streaks are eliminated particularly in halftone areas, the recording material while being transported flat is successively treated with washing agent in at least two separated wash sections by jets shaped and arranged so that each surface unit area of the recording layer is sequentially struck by at least two wash spray cones which do not contact each other prior to impacting the recording layer. The amount of washing agent impacting a unit area of the surface of the recording material per unit time and its impact velocity are selected so that only image free areas of the recording layer are removed. Halftone copies reproduction printing forms, etc., are produced.

REFERENCES:
patent: 3906536 (1975-09-01), Graham
patent: 3973847 (1976-08-01), Gygax
patent: 4081577 (1978-03-01), Horner
patent: 4142194 (1979-02-01), Hamlin

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