Direct dry negative color printing process and composition

Details Direct dry negative color printing process and composition Direct dry negative color printing process and composition

1990-04-16

1991-10-01

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Dye image from radiation sensitive dye or dye former by dry...

Composition or product

430167, 430293, 430333, 430337, 430156, 430341, 430345, 430962, G03C 728

Patent

active

050533207

ABSTRACT:
The invention relates to a photosensitive composition for direct dry negative color printing composition. The photosensitive composition comprises a binder containing a plurality of grains of a semiconductor material, each grain having adsorbed on its surface one of three different complexes of spiropyran with a metal salt, each complex being sensitive to a different wavelength of light, a cross-linkable polymer and free radical initiator. The composition and process enables photofinishing or printing from a negative.

REFERENCES:
patent: 4010033 (1977-03-01), Metzger
patent: 4725527 (1988-02-01), Robillard

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