When the solvent started to erode the membrane of emulsion…
The edge turned blue was eroded by solvent
And this will lead to a gradual decline in the quality of printing with the number of printing
The ultimate resolution of the emulsion may not be able to stabilize the printing quality. Analysis of self demand, choose the suitable photo emulsion and materials is the most important for screen printing and the correct of materials used in the process is the optimization of continuous printing.