Carrier Sheet - What is a carrier sheet?

Answer:

The bottom layer in a pressure sensitive construction. The carrier sheet (or simply carrier) carries the adhesive and face material of a pressure sensitive label. The carrier always has a release coating that prevents the adhesive from sticking permanently to the backing, which allows the face material and adhesive to be removed together when a label is being applied to a substrate. The carrier protects the adhesive and supports the face material during the die cutting process, storage, and the printing process.

Carriers are usually made of paper, although film may be used in order to reduce the overall thickness of a sheet of labels and to provide a base that is stronger and more durable - which is particularly important during the die cutting process - than paper. However, film carriers are more expensive than paper carriers.