EFFECT OF EXTRUSION COATING PARAMETERS ON ACTIVATION OF A PRIMED FILM

摘要

In the flexible plastics converting industry, primed films are commonly extrusion coated or laminated withpolyethylene or ethylene copolymers. To achieve sufficient adhesion to a primed film, the converter must insure theprocess parameters meet certain criteria. These criteria include the following extrusion variables:Melt temperatureCoating thicknessAir-gapDieip offsetAcid content of the extrudateIn this paper, we use pilot-line studies to examine the effects of these parameters on adhesion to a film primed with awater-borne extrusion primer.