Structure of a Self - Adhesive Thermal Label
A self - adhesive thermal label generally consists of three main layers. The top layer is the face stock, which is the printable surface. This can be made of different materials such as paper, polyester film, or polypropylene film, depending on the application requirements. The middle layer is the heat - sensitive coating, which is responsible for the color change during printing. The bottom layer is the adhesive layer, which allows the label to stick firmly to the target surface. There may also be a release liner on the adhesive side to protect the adhesive until the label is ready to be applied.