Self-adhesive labels have the advantages of no brushing, no paste, no dipping in water, no pollution, saving labeling time, etc. The application range is wide and convenient. All kinds of self-adhesive labels can be applied to materials that are incapable of general paper labels. Self-adhesive labels are a kind of universal labels. Self-adhesive label printing is very different from traditional printing. Adhesive labels are usually printed and processed on the label linkage machine, and multiple processes are completed at one time, such as graphic printing, die cutting, waste disposal, cutting and rewinding. Self-adhesive labels have high requirements on the printing process and printing equipment.