Processing compositions for color transfer processes comprising alkali metal fluorides

Abstract

Improvements in the physical characteristics of a photographic assemblage, especially an integral transfer element, are obtained by employing an alkali metal salt in the alkaline processing composition used to process the assemblage. The anion of the salt has a solubility in relation to that of sulfate such that after processing in the presence of calcium and sulfate ions, calcium will combine with said anion in preference to sulfate at any given pH. Especially preferred salts are alkali metal fluorides or oxalates.

Claims

1. In a photographic assemblage comprising:

a. a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material;

b. a dye image-receiving layer; and

c. an alkaline processing composition having a pH of at least about 11 and means for discharging same within said assemblage;

2. The assemblage of claim 1 wherein:

a. said dye image-receiving layer is located between said support and said silver halide emulsion layer; and

b. said assemblage also includes a transparent cover sheet over the layer outermost from said support.

3. The assemblage of claim 2 wherein said cover sheet is coated with, in sequence, a neutralizing layer and a timing layer.

4. The assemblage of claim 3 wherein said discharging means is a rupturable container containing said alkaline processing composition and an opacifying agent, said container being so positioned during processing of said assemblage that a compressive force applied to said container will effect a discharge of the container's contents between said transparent sheet and the layer outermost from said support.

5. The assemblage of claim 1 wherein said salt is present in said processing composition at a concentration of from about 0.01 N to about 0.5 N.