Silver halide photographic material for tanning development and

Details Silver halide photographic material for tanning development and Silver halide photographic material for tanning development and

1986-03-11

1987-11-10

Louie, Won H.

Radiation imagery chemistry: process, composition, or product th

Silver halide colloid tanning process, composition, or product

430405, 430566, G03C 106, G03C 710

Patent

active

047057386

ABSTRACT:
In a silver halide photographic material for tanning development, comprising a support base coated with a substantially unhardened hydrophilic binder layer including a light-sensitive silver halide emulsion reactively associated with a tanning developer and a dispersion of colloidal silver, the tendency of the hydrophilic binder to become water-insoluble during storage can be prevented by adjusting the pAg of the colloidal silver dispersion to values in the range from 6.5 to 9.5 with a 1-phenyl-5-mercaptotetrazole compound before coating.

REFERENCES:
patent: 3364024 (1963-06-01), Yackel et al.
patent: 3440049 (1969-04-01), Moede
patent: 4369245 (1983-01-01), Beruto et al.
patent: 4448878 (1984-05-01), Yamamuro et al.
patent: 4456676 (1984-06-01), Ciskowski
patent: 4504572 (1985-03-01), Beruto et al.
patent: 4544620 (1985-10-01), Macioch

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