Manually printing the impression cylinder after offset printing
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When the offset printing machine operator cleans the impression cylinder after the shift, he will encounter a situation in which, due to the pressure contact of the impression cylinder with the blanket cylinder multiple times during the operation, the tip portion of the impression cylinder may have different degrees of sticking. Especially in the high temperature season and without air conditioning, in just one shift, the ink particles stuck to the tip of the tip will harden and crystallize and stick firmly to the drum. When cleaning, it is necessary to use the ancient cloth and gasoline to wipe back and forth. When it encounters a stubborn place, it needs to be scraped off with steel sheets. If it is not scratched, it will easily damage the drum body. When I cleaned the impression cylinder body, I tried to scrub the roller body with the clean ball and gasoline purchased in the department store. The effect was good.