Phenomenon: powder spray deposits on the blanket, causing severe discoloration. In some cases, dusting will be transferred to the printing plate, causing dampening and paste / dirty problems.
Reasons and measures:
The reason for this phenomenon is that too much dusting was used in the previous printing.
Can be solved with three measures:
1. Printing with pressed powder without dampening;
2. Overprint with ink and oil when necessary;
3. Remove the powder from the paper.
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