PHOTOGRAPHIC MATERIAL FOR THE SILVER DYE BLEACH PROCESS

摘要

A photographic silver dye bleach material which contains a compound of the formula in which R is a substituted alkyl, R1 is substituted or unsubstituted alkyl, p is 1 or 2, q is 0 or 1, p+q having to be 1 or 2, and n is 1 to 20, or a salt of this compound. The benzoquinones used deactivate bleach catalysts which diffuse beyond the silver image area produced by development of the exposed material. The silver dye bleach material containing these compounds is therefore distinguished by high contrast, high sharpness and good color reproduction.