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Troubleshooting Guide - Pressroom Conventional
On Press Issue: Back Trap Mottling
| Solution: Use a more stable, slower setting ink with lower solvent content. | Product Recommendation |
Advantage Pure Performance |
Solution: Change ink sequence. Run darker colors last in sequence if possible.
Solution: Change layout and/or sequence if possible to print lighter coverage forms before heavier coverage forms.
Solution: Use tack graded inks, printing highest tack inks first, or use properly formulated uniform tack inks
Solution: Clean press and shorten make ready times
Solution: Reduce press speed and use fresh ink
Solution: High gloss substrates are prone to back trapping. Try a lower gloss substrate if possible.
Solution: Change to a quicker release conventional blanket with high solvent resistance
Solution: Back off pressure on back cylinder slightly
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