A food packaging bag, printing to make appropriate adjustments to the pressure roller, printing packing bag will be a little careless rolling rubber; if it is too large, heavy black bottom is easy to stick or sticky rubber rollers. Therefore, before printing, to reduce the pressure of the roller, rubber lining should be reduced. In order to avoid sticky rubber, rubber roll, to take some ink additives or rut agent, while promising, avoid double Zhang, Zhang and skew, ensure uniform pressure without rolling rubber.
Two, food packaging bags printing, like other printed matter, the rules need to be accurate, otherwise it will affect its quality. At the time of printing to adjust the front gauge height and side pressure according to the paper thickness gauge board level, but also to regulate the transport of cardboard paper roller and the brush wheel pressure on paper tape to tighten the loose. When the boot, found bad rules, but also check the paper in time, and the paper wheel and paper wheel pressure; for thicker paper, press paper wheel and brush wheel pressure to pressure heavier. And check the paper time and pull time, and side gauge and the timing of the teeth, and find the problem in time, until the upper and lower, and the left and right rules are accurate, no error.
Three, the ink has a direct impact on the quality of printed products and packaging of goods plays an important role in the protection and decoration, packaging and printing will directly affect the quality of people's aesthetic and consumption. Therefore, the printed packing must be in conformity with the quality standard. In order to complete the exquisite and beautiful products, we need to finish every step of the printing carefully so that there will be considerable profit and quality.