| 摘要 |
PURPOSE:To improve the stability of a processing liquid by incorporating an amine compd. expressed by the specific formula into a planographic processing liquid. CONSTITUTION:The processing liquid for the waterless planographic plate is formed by coating a photosensitive layer consisting of a material contg. quinonediazide structure as a constituting component and silicone rubber layer in this order on a base. This processing liquid contains the amine compd. expressed by the formula. In the formula, R: H or alkyl group of 1-6C, R', R'': H or alkyl group of 1-5C, R''': H or alkyl group of 1-10C or alkyl group of 6-20C, n: 2-6 constant. The processing soln. for waterless planographic plate making having the excellent stability is thus obtd. as the processing liquid for an automatic developing machine. |
