Double UV exposure for screen printing

From Jenny

Double UV exposure for screen printing

How to grasp double UV exposure time?

Go through plate burning made-up silk screen printing plates, In order to improve the plates waterproof, rub resistance, solvent resistance and increase silk screen plate’s strength, fastness, improve pressrun, usual adopts double UV exposure method to hardening treatment the silk screen printing plates(except double UV exposure method, also adopts medicine to hardening treatment the silk screen plates).

Double UV exposure time usually according silk screen mesh, includes select and use silk screen mesh density, thickness of film and some other element.  General, 2nd UV exposure time is 1-3 double of 1^st UV exposure time.

Silk screen printing plates hardening treatment suitable for large printing and disposable silk screen plates.

What kind of situation silk screen plates can be hardening treatment ?

First, in small batch silk screen printing may needn’t silk screen printing plates hardening treatment.

Second, After silk screen printed, silk screen plates will proceed demould treatment. And reuse silk screen plates, it can not double UV exposure hardening treatment, otherwise, it is very difficult for demould treatment.