In-mold labeling refer to pre-printed paper, synthetic or thin-coated labels with a special hot-melt adhesive on the back, which is placed inside the model before plastic blowing, injection molding to create a plastic bottle or basin. The label and the container form a whole, the label and the bottle are basically on the same plane. And the edge of the label is invisible, as if the graphic is printed on the surface of the bottle. The use of in-mold labels eliminates the need for labeling machines. Therefore, in-mold labeling is a new technology with great potential.