Photographic element with gas permeable hydrophobic layer on bac

Details Photographic element with gas permeable hydrophobic layer on bac Photographic element with gas permeable hydrophobic layer on bac

1992-04-20

1994-08-02

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430212, 430213, 430215, 430539, 430523, 430531, 430930, 4283644, 4283171, 4283179, 4283184, 4284782, G03C 534, G03C 188, B32B 326

Patent

active

053344820

ABSTRACT:
A photographic element is described comprising a layer containing a hydrophilic low molecular weight compound on one surface of a support and a backing layer comprising a hydrophilic binder on the other surface of the support, wherein a gas-permeable hydrophilic layer is provided as the outermost layer of said backing layer. In addition, a dye-fixing element is described to which is transferred a mobile dye to be formed or released by heat-development of a photographic element, wherein said photographic element comprises a light-sensitive silver halide, a hydrophilic binder and a dye providing compound for forming or releasing a mobile dye in correspondence or reverse correspondence with the amount of exposure, after or simultaneously with, imagewise exposure of said photographic element in the presence of at least one of a base and a base precursor, wherein said dye-fixing element comprises a base or base precursor in a dye-fixing layer or an adjacent layer(s) on one surface of a support, and has a backing layer comprising a hydrophilic binder on the other surface of said support and comprising as the outermost layer a gas-permeable hydrophilic layer.

REFERENCES:
patent: 1939171 (1933-12-01), Hickman
patent: 2953366 (1960-12-01), Kosar et al.
patent: 3752692 (1973-08-01), Young
patent: 4868088 (1989-09-01), Aono et al.
patent: 5156939 (1992-10-01), Koide

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