Multilayer direct-positive photographic material and process for

Details Multilayer direct-positive photographic material and process for Multilayer direct-positive photographic material and process for

1995-04-12

1996-06-04

Chea, Thorl

Joints and connections

Interfitted members with external bridging piece

430503, 430507, 430508, 430523, 430589, 430596, 430598, 430940, G03C 1035, G03C 1485

Patent

active

055231977

ABSTRACT:
In order to provide a direct-positive material having low contrast and extended latitude that can be manufactured in a consistent and reproducable way a multilayer direct-positive photographic material is disclosed as well as the process to provide it, characterized by the steps of coating on one side of a support at least two layers of direct positive silver halide emulsions of the externally fogged type, at least one layer of which comprises a mixture of direct positive silver halide emulsions of the externally fogged type and at least one layer of which comprises one or more filter dyes; overcoating said emulsion layers with at least one protective layer; coating on the other side of the support at least one backing layer.

REFERENCES:
patent: 3615573 (1971-10-01), Smith, Jr. et al.
patent: 3647463 (1972-03-01), Taber et al.
patent: 4273862 (1981-06-01), Yoshida et al.
patent: 4311787 (1982-01-01), Lemahieu et al.
patent: 5043259 (1991-08-01), Arai

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