Shree Mahavir Chemical Screen Printing Chemicals

Exposing is one of the most important factors in achieving fine image & sharpness in Textile Printing. The important aspect is deciding exposing time which depends on mesh of the screen, thickness of coating, light source for Photography & image pattern. Photo Emulsion is extremely sensitive to ultraviolet light & takes little time for photography. If exposing machines are fitted with metal halide lamps or xenon lamps then exposing time of 2 to 4 minutes are sufficient. Thus time of exposing varies from 2 minutes to 7 minutes depending upon light sources & exposure should himself determine the time.