The purpose of this study was to develop a process for screen printing PVC film with UV-curing ink. PVC film may contain additives that can migrate to the surface and reduce ink adhesion. Various surface treatments and UV-curing ink additives were investigated. Initially, screen printing failed the quality standards of Pittsburgh Plastics Mfg. (PPM). For recently manufactured film, the study showed that poor ink adhesion was a result of incomplete cure. Penetration of UV radiation was impeded by the ink's high pigment loading. Dilution of the pigment with clear base enabled complete cure. Corona treatment of the film eliminated the need for surface wipes for recently manufactured/corona treated film.
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