Silver halide photographic material containing a non-...

Details Silver halide photographic material containing a non-... Silver halide photographic material containing a non-...

G - Physics

03

C

96/130, 96/37

G03C 7/00 (2006.01) C07D 213/85 (2006.01) C09B 29/42 (2006.01) G03C 8/10 (2006.01)

Patent

CA 1112498

ABSTRACT OF THE DISCLOSURE Non-diffusible dye-providing compounds for the dye diffusion trans- fer process yielding yellow to red color images of wanted absorption charac- teristics and improved light fastness correspond to the formula (A1)n - D - N = N - Py - (A1)1-n in which A1 represents an oxidizable organic carrier residue which may be attached through a connecting member X and containing a group which confers diffusion resistance, from which carrier residue, either in its oxidized or in its unoxidized form, a part is split off together with the group which confers diffusion resistance under alkaline photographic development condi- tions, a diffusible azo dye represented by the formula P-N=N-B being released imagewise at the same time; D represents a heterocyclic or carbocyclic aroma- tic group; Py represents a pyridine or 1,2-dihydropyridine group which is attached to the azo group through its 3-position and carries an amino or hydroxyl group in its 6-position; n = 0 or 1.

291038

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