Photographic dye diffusion transfer process

Details Photographic dye diffusion transfer process Photographic dye diffusion transfer process

C - Chemistry, Metallurgy

09

B

96/106, 96/37, 2

C09B 1/16 (2006.01) C07D 487/04 (2006.01) C09B 29/00 (2006.01) C09B 43/00 (2006.01) G03C 1/06 (2006.01) G03C 8/10 (2006.01)

Patent

CA 1076106

(Abstract of the Disclosure) Useful non-dissusible die-giving compounds for the photo- graphic dye diffusion transfer process are dye sulfonamides derived from enolamines or endiamines or tautomers thereof. The dye-giving compounds are oxidized by developer oxidation products and subsequently split under the conditions of alkaline development to release diffusible dyes. The compounds are of the following formula Image in which X is a dye moiety and R1, R2 and R3 have meandings given thereinafter.

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