Photopolymer plate making for hot foil stamping press
It is used for printed ruling film and macromolecular photopolymer plate. When the ultra-violet rays shine in through the film on the photopolymer plate, part of the macromolecular photopolymer plate (the light part of the film) will have a photochemical reaction and produce macromolecular chain that is insoluble (weak alkaline solution). After cleaning the plate, this part can be left as a raised part. While the light-tight part of the film stops the light and the corresponding part on the plate can be dissolved.
Steel plate or blade making for pad printing
It is used for printed ruling film and steel plate or blade covered by photosensitive coating. When the ultra-violet rays shine in through the film on the steel plate or blade, part of the photosensitive coating on the plate or blade (the light part of the film) will have a photochemical reaction and coagulate, While the light-tight part of the film stops the light and the corresponding photosensitive coating on the plate or blade can dissolve into developer, then you can carry on the corroding of plate or blade etc.