Processing compositions for silver complex diffusion transfer process

摘要

Disclosed is a processing composition for silver complex diffusion transfer process which contains the following constituents (A) to (E) or (A) to (F): -(A) MOH (M is an alkali metal) 0.05-0.2 mole/l -(B) an alkanolamine 0.25-0.7 mole/l -(C) a sulfite 0.4-0.7 mole/l -(D) a thiosulfate 0.03-0.08 mole/l -(E) a p-dihydroxybenzene >/=0.07 mole/l -(F) a benzotriazole 10-4-10-2 mole/l, - the sum of (A) and (B) being 0.4 to 0.8 mole/l and the molar ratio of (B) to (A) being above 2.0. This composition can produce images and tone without scumming.