When the hot stamping is uneven, the edge of the graphic is not clear. The main performance is hot stamping, and the edge of the graphic has a burr phenomenon, which affects the printing quality. The main reasons for this phenomenon are: uneven plate pressure, mainly due to uneven layout when loading, causing uneven pressure throughout the plate, some pressure is too large, and some are too small, so that the text is subject to If the force is uneven, the surface of the hot stamping paper is not smooth, and the adhesion between the parts and the substrate is different, resulting in uneven printing. Therefore, the hot stamping plate must be leveled to ensure uniform stamping pressure to ensure clear graphics. In addition, if the plate pressure is too high during hot stamping, it can also cause the graphic imprint to be irregular. During the hot stamping process, the hot stamping pressure should be adjusted to the appropriate level. It is necessary to ensure that the padding of the imprinting machine should be precisely matched according to the area of the pattern, and it is not displaced and moves well. In this way, it can ensure that the graphic and the tiling layer match when the hot stamping is performed, and the hair around the graphic is prevented from being hairy. Also, the pressure is uneven after the same plate is stamped. This is because the size of the graphic area is very large, and the pressure of the large-area graphic should be increased. The pressure of the large and small areas can be corrected and adjusted to make them equal. Finally, if the temperature is too high during hot stamping, the graphic print will be irregular. Therefore, according to the characteristics of hot stamping paper, it is necessary to reasonably control the hot stamping temperature of the printing plate to ensure that the image is smooth, flat and not hairy.
