A web or sheet of material covering the adhesive side of a tape. t is removed prior to application. Most frequently found on double-coated tapes and label stock.
A backing coated on one or both sides that protects the adhesive until use. The liner is removed and discarded before application. Most frequently found on double-coated tapes and labels.
The component of the pressure sensitive label material which functions as a carrier for the pressure sensitive label. Usually silicone coated, it readily separates from the label when the label is removed for application.