PS пластины

Applications: Long-run,color printing. Thinkness:.27mm, 0.15mm Exposure time :Put the stouffer 21step-gray scale (0.15 step difference ) or UGRA, PCW 82wedge at the bottom of the film and edge of the plate, then exposing and developing accoding to the recommended conditions .The optimum exposure for the positive plate can be obtained when the teird step of grey scale is clear after exposure,or when the 15-20um line appears on the wedge. Dilution ratio: PD:water =1:4(by machine),PD:water=1:6(manua) Developing TEMP: 23±2