Printing technology of self-adhesive label: The self-adhesive label material is a composite material with paper, film or other special materials as fabric, adhesive coated on the back and silicon-coated protective paper as backing paper. After printing, die cutting and other processing, it becomes a finished label. Self-adhesive materials are usually printed and processed on the label linkage machine. The most common printing form is relief printing, and other printing methods are also used. Common faults in the printing stage include: the ink layer on the surface of the printed label is not dry, drying slowly, or the ink layer is wiped off. Reasons: Too thick ink layer, too much ink, inappropriate additives used in ink, ink denaturation, or inappropriate types of ink used will all cause the ink layer of printed labels to dry, dry slowly or wipe off at once; Besides, the machine runs too fast and too dry.