To solve this problem, the following methods can be adopted: install a balance pressure roller on the waste discharge roller, and properly balance the diameter of the waste discharge edge with external force. Add some lining paper to the winding position with less waste edges to balance the tension of waste edges. Pre-stripping process is adopted before die cutting to appropriately reduce the release force of materials, because the greater the release force of materials, the greater the tension of waste discharge, which is not conducive to the smooth discharge of waste, especially for special-shaped self-adhesive labels. There are two main methods to improve the processing technology and enhance the tensile strength of waste edges: covering the bonding surface with a film to increase the tensile strength of the surface material; The back knife is added to the die-cutting station to die-cut the base paper, so that the waste edge becomes a double-layer structure of the face paper and the base paper, and the tensile strength is greatly enhanced.