- Brand Name: Longma
- Style: Positive
- Type: PS Plate
- Place of Origin: Hebei China (Mainland)
- Use: Offset Printing
- Material: Aluminum
import high -quality Al substrate for special surpose,multi-layer ultra fine-grain,even Coating ,high speed
Applications: Long-run,color printing. Thinkness:.27mm , 0.15mm
Exposure time :Put the stouffer 21step-gray scale (0.15 step difference ) or UGRA, PCW 82 wedge 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