Process for the production of color prints by the dye-diffusion

Details Process for the production of color prints by the dye-diffusion Process for the production of color prints by the dye-diffusion

1982-05-13

1984-01-31

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, 430214, 430393, G03C 700, G03C 140, G03C 110, G03C 554

Patent

active

044290330

ABSTRACT:
Color prints are prepared in the form of retained images by the dye diffusion transfer process using a photographic recording material comprising in that order a transparent layer support, a light-sensitive element containing at least one silver halide emulsion layer and a non-diffusing color-providing compound associated thereto, a light-reflecting opaque layer and a mordant layer. The recording material is subjected to imagewise exposure through the transparent layer support. During development a colored moiety is released from the color-providing compound in imagewise distribution and transferred to the mordant layer. Silver and silver halide is removed by bleaching and fixing. The colored color-providing compounds retained in the light-sensitive element in imagewise distribution complementary to the transferred colored moiety form the color image visible through the transparent layer support against the light-reflecting background of the opaque layer. The mordant layer prevents contamination of the developer by diffusible dyes.

REFERENCES:
patent: 4139379 (1979-02-01), Chasman et al.
patent: 4329411 (1982-05-01), Land

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