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The printing and technology research institute of Shaanxi Province successfully developed a PS plate regeneration high-efficiency stripper. According to reports, the recycling of PS plates is a very effective way to save aluminum materials and reduce printing production costs. The first encountered in the reproduction process is to peel off the ink layer, photosensitive layer and partial oxide film on the old PS plates. Further problems such as electrolysis, oxidation, plugging, coating, etc. have occurred. PS ink layer and photosensitive layer, oxide layer matching materials. The characteristics of the stripping solution are as follows: (1) It is easy to operate, and the stripping speed is fast. It can be stripped after soaking for 24 hours under 40-50°C. 2 Low cost and long use time. The supplement fluid can be added at any time according to the change of the solution PH value, and can be used continuously for more than 4 months. 3 It is basically non-toxic and has little acid corrosion, which can ensure safe production.