When the offset press operator cleans the impression cylinder after work, he will encounter such a situation: in the work, because the impression cylinder makes pressure contact with the rubber cylinder for many times, the trailing part of the impression will appear different degrees of stickiness. Especially in the high-temperature season and without air conditioning, in just one shift, the ink particles sticking to the trailing part will harden and crystallize and firmly stick to the roller. When cleaning, you need to wipe it back and forth with ancient cloth dipped in gasoline. If you encounter a stubborn place, you need to scrape it with a steel sheet. If it is light, it will not be cleaned. If it is heavy, it will easily damage the roller body. When I was cleaning the impression cylinder, I tried to scrub the cylinder with a cleaning ball bought in a department store dipped in gasoline. The effect was good.
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