Positive Ps Plates - Ps Material, Variable Dimensions, Green, 75s Exposure | Long Life, High Color Contrast, Sharp Dot Reproduction

Our companya s Positive PS Plates have good plate life, high color contrast, and perfect dot reproduction abilities. In order to make the plate reached the best printing state, please use it under the following requirements.

1. Exposure level
Aided by the Fuji Fifteen-steps step guide (recommended) or other compatible step guide, then under the correct developer concentration, temperature and the developing time, you should control the exposure level between the first two steps white and the third step shallow appearance.
Positive Type (the first two steps clear) FUJI fifteen-steps step guide

(1) Exposing time
The exposing time under 3000W lodine gallium lamp at 1 meter is about 75S. If the power of the lamp and the distance to the plate are different, please expose the plate abiding the data in the following table.

Before Exposing, please notice the efficiency of the vacuum-pumping, the film must be engaged with the PS plate without any cracks, or it will produce some halation, then the halation will influence the dot reproducing and decrease the plate life. So please keep the vacuum degree below 20.