Method for making direct-positive photographic images

Details Method for making direct-positive photographic images Method for making direct-positive photographic images

1994-06-29

1995-09-12

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Positive

430378, 430547, 430589, 430598, 430940, G03C 550

Patent

active

054495954

ABSTRACT:
The present invention relates to a method for making direct-positive photographic images by developing light-sensitive materials in the presence of development nucleators which do not cause loss of sensitivity during exposure or unevenness of development. More specifically the invention relates to the formation of direct-positive images having a high maximum density and high exposure latitude and to photographic materials for use in said formation, which is accomplished by a method for making direct-positive images comprising:

REFERENCES:
patent: 4996137 (1991-02-01), Inoue et al.
patent: 5254443 (1993-10-01), Kok et al.
patent: 5306608 (1994-04-01), Kato

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