Product Main

Specifications

Product name: positive ps plate
Thickness:0.15mm-0.3mm
Size: under 1250mm
Color: blue and green are avalable
Package: 100 pieces/package for 0.15mm; 50 pieces/package for above 0.15mm
 
Transportation package: standard carton in plywood with reglet in it to reinforce
 
Delivery time:within 15-20 days after receiving prepayment
Payment:T/T, L/C is prefered, the other payment way is acceptable.
 
Technical Data Description:
 
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 20Kpa.
 
The lamp distance to the plate must be longer than the diagonal line, and the lamp aligns to the plate positively. Or it will produce the halation and the exposure stage of plate will be non-homogeneous.
When the lodine gallium have been used for a long period, because of the ageing processing, you should notice to elongate the exposing time. When the exposing time is 20% longer than the normal exposing time, so as not to influence the working efficiency, you should consider to replace the lodine gallium lamp.
2.Developing
 
Developer: Fuji DP-4 developer or our company's ARFA-Ⅱ developer
 
Temperature: 25±1℃ Time of Developing: 30+/-10s
The developer's dilution ratio
 
Automatic plate processor: 1:6
 
Manual plate processor: 1:10
 
Notes: Our PS plates required weak alkalinity developing; the developer's concentration, temperature and the developing time should be paid much attention, or it will decrease the run length and the printing efficiency. On the developer or developing powder which are produced by other companies, please use it under the condition they required to achieve our standard.
 
3. Run Length: 50000-80000 .