The main cause of this failure is caused by excessive hot stamping temperature, excessive thickness of the hot stamping paper, excessive embossing force, and loosening of the gilding paper. It is necessary to take corresponding measures to solve the problem according to the specific situation. Too hot stamping temperature is the main cause of unclear writing and paste. In the hot stamping process, if the temperature of the printing plate is too high, the base layer and other film layers will be transferred and viscous, resulting in unclear writing and paste. The hot stamping temperature should be adjusted according to the applicable range of the hot stamping paper. In addition, the hot-coated paper with a thin coating should be selected, the appropriate pressure should be adjusted, and the pressure of the pressure roller and the tension of the winding roller should be appropriately adjusted.
