Method of forming an image

Details Method of forming an image Method of forming an image

1989-03-14

1991-10-15

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Photomechanical dye image prepared

430167, 430175, 430326, 430910, 430911, G03C 518, G03F 7008, G03F 7016

Patent

active

050573942

ABSTRACT:
Method of forming a positive-positive type image is disclosed, which is characterized in that a photosensitive layer is formed on a substrate using a composition comprising water-soluble photo-crosslinking agent, water-soluble resin and synthetic resin emulsion and further coloring agent, if necessary, said photosensitive layer is exposed to active rays through manuscript, then this is immersed into warm water of 30.degree. to 60.degree. C. for not less than 3 seconds to allow the exposed area to swell and soften sufficiently with warm water and simultaneously to allow almost all water-soluble photo-crosslinking agent in the nonexposed area to dissolve out into warm water, and successively the swollen and softened exposed area is rubbed out to form an image having no coloring originating from water-soluble photo-crosslinking agent without using the development chemicals except water.

REFERENCES:
patent: 2544877 (1951-03-01), Bryce
patent: 2937085 (1974-01-01), Seven
patent: 3591378 (1971-07-01), Altman
patent: 4551408 (1985-11-01), Mino et al.

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