A, the same printing plate washing depth is inconsistent fault
1, printing machine is too hot, carefully check the ventilation and cooling system whether there is a fault;
2. The intensity of the printing lamp is uneven or the opening is not synchronized, and all the tubes are replaced at the same time;
3. The washing brush is not parallel or unbalanced, and the pressure and levelness of the washing brush can be adjusted.
Two, the image part blurred fault
1, the film has defects, carefully check whether the image on the film is clear;
2. Misuse the offset film for flexographic printing, and re-make qualified flexographic film.
Three, thin line bending wave fault
1, the back exposure is insufficient, to increase the back exposure time;
2, the main exposure is insufficient, to increase the time of the main exposure;
3, drying time is insufficient, to increase the drying time;
4, the washing water is not fresh, replace the fresh washing water;
5, the washing time is too long, adjust the washing time.
Four, the field, the text plate after moving and bending when the rupture fault
1, the main exposure and back exposure time is too long, can reduce the main exposure and back exposure time;
2, the removal of adhesive time is too long, reduce the removal of adhesive time;
3, the main exposure and back exposure is insufficient, check whether the lamp is damaged or aging.
Faults in plate making (I)
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