Paste version: As the text font is too small, thin line spacing will be smaller. Often appear ink drying in the above phenomenon, can not distinguish between the resulting graphic adhesions, mainly because of the ink drying too quickly sake. This happens, first from flexible resin version itself to find the problem. Generally require profits slip on the resin version font at the bottom of feeling feel, should not be sticky, but due to lack of exposure, font at the bottom was sticky soft state, it is easy to stick to the ink, ink piled up and dried in thin inside.
　　Vignette: the sticker sometimes cloudy shadow, which is mainly caused by uneven ink distribution. Sticker printing platen roller leveling is a 150mm diameter axially moving string chrome iron roll, its role is to accept the ink from the ink fountain roller and the transfer roller and the ink evenly uniform deployment, re-transmission to the inking roller, string roller losing string ink is easy to form vignetting effect. In addition, if you pay attention to maintenance inking roller, so inking effect is reduced, will cause vignetting solve Vignette is to solve the problem of uneven ink distribution, may be increased to the amount of ink.
　　Pressure Problem: Printing a great impact on the quality of printing pressure. Maintain a uniform and constant printing pressure within the effective print area, not only make the printed ink evenly, little color, but also make imprinted dimensionally stable. Platen type printing presses to get the most pressure. However, due to the problem of manufacturing precision of the flatness of the printing plate it exists, and the thickness of the adhesive base material can not be completely uniform, resulting in uneven pressure, affecting the printing quality.