SCREEN PRINTING OF HEAT TRANSFERABLE LABELS

摘要

A screen printing process for imprinting an ink design over release coat substrates carried on a web to form heat transferable labels. The process includes screen printing an ink design image onto the substrate followed by passing the imprinted substrates through a drying section. The ink formulation used in the screen printing step is composed of a base ink vehicle containing a polyamide adhesive resin and a nitrocellulose film forming component, a thixotropic filler and a plasticizer. The formulation exhibits fluidity, adhesive and plasticity characteristics which make the ink particularly suitable to imprint and form heat transferable labels by silk screen printing.