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Poor Ink Adhesion on BOPP and PP Films / A Top Coating Can Help
- 2026-06-05 18:37:46
- admin
BOPP, PP, OPP, and PE films are widely used in flexible packaging, labels, and decorative applications due to their transparency, chemical resistance, and stable processing properties. However, printing on these films isn’t always straightforward. A printed surface may look fine initially, but problems can appear during tape tests, rewinding, die-cutting, or transport. Ink may peel, scratch, or lo...
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How to Diagnose Printing Defects on PP, PE and PET Films
- 2026-08-28 17:54:10
- admin
Printing problems on plastic film do not always come from the same part of the process. Ink may shrink immediately after transfer. A printed layer may look normal but fail a tape test after drying. Some problems only appear after water exposure, rubbing or when the press reaches normal production speed. During troubleshooting, it is useful to record when the defect first appears before changing se...