Flexographic, Dunlop plate (certified), flexographic provided by Dunlop Advertising Co., Ltd., Zhengzhou. Zhengzhou Dunlop Advertising Co., Ltd. (#) is specialized in "flexographic, resin version, printing, packaging design," the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Manager Zhao. Printing and packaging printing industry are: offset printing (ink color printing), Toppan Printing (carton printing ink). Among them, the carton flexo printing with a color printing compared to high-intensity, low-cost, high production efficiency (fast delivery) flexographic printing, the overall effect is close to color printing, widely used in the transport packaging products. 2, the main production processes corrugated boxes corrugated board automated production lines, printing processes, post-processing and molding processes; current print job has basically printing, slotting, die cutting, sticky boxes, packing a molding automation. Second, the principle of a water-based printing, flexo printing are additive color printing. Color documents through electronic color plate into the negative image, and then printed by the printing press, the ink is transferred from the press anilox to 3.94 flexographic printing plate, and then transfer the ink from the printing plate to the corrugated board. By trapping, overlapping color flexo get a positive image to achieve the original sample box copy, reproduce the original quality. Developing time PS plate PS plate developing time mainly by the type, concentration and exposure time of the developing solution, developing temperature and other conditions to determine. When the above conditions are determined after platesetter, PS version of the developer and the development time is proportional to the degree that the longer development time, developing more thorough. But developing outlets for too long will produce shrink and so on. Impact of development time on the plate quality is obvious, the developer liquid is diluted with water at a ratio of 1/6 PD type, the developing temperature is 22 ℃, the development time of printing quality impact Table 3 (omitted). As can be seen from Table 3, the production of flexible version, PS version of the development time is too long, a small dot on the layout easily lost. But the lack of time and the development time can not reach the developing purpose, i.e. the non-image portion of the photosensitive layer can not be completely dissolved to cause scumming when the layout printed on the machine.