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Precautions for the operation of dry ice cleaning printing machine
Precautions for the operation of dry ice cleaning printers. In the printing process of the printing press, especially the monochrome offset press, the trademarks, packaging and decoration often need to wash the ink and change the color, clean the entire inking system of the offset press, and then replace it. New ink. The ink wiper of the ink washing device is composed of a rubber knife, an ink receiving tank, and a tightening and loosening adjustment screw.

- The wiper device for ink washing must be installed on the offset printing machine when the ink is washed and the color is changed, or when the ink roller needs to be cleaned due to other factors. When installing, put the two eccentric pins of the ink receiving tank aside In the opening groove of the supporting shaft fixed on the wall plate of the offset printing machine, the adjusting nut is fixed in the opening tooth of the square iron block on the wall plate. Then start the offset printing press and turn the adjusting nut to make the blade of the rubber rubber knife slowly contact the surface of the ink string roller. The contact pressure of the two adjusting screws on the left and right needs to be even, and the rubber knife and each part of the ink string roller are in even contact. Ability to scrape off the ink completely.
- When cleaning the ink, in order to completely and cleanly remove all the ink accumulation and ink traces on the ink roller, it is best to pour gasoline on the ink roller near the ink fountain area from the upper part of the inking part. The waste ink flows from the upper part of the rubber knife into the ink receiving tank, and after a period of cleaning, the ink roller can be cleaned.
- After cleaning the ink rollers and ink fountains of the inking parts, wipe them clean, and clean them with a clean, soft, neat, fiber-free, and good absorbent cloth.
- The installation position of the wiper for cleaning the ink washing mechanism should be correct. Keep the rubber blade and the surface of the ink string roller at equal intervals and the same contact pressure.

5. After cleaning, the speed of wiping with the wipe should be fast, and the wipe should not be caught in the ink roller when the offset printing machine is running.
Dry ice cleaners can also be used to clean the printing machine. Dry ice cleaners (dry ice blast cleaners, dry ice blasters, mold washing machines, mold cleaners) are used to dry ice making machines (dry ice making machines, dry ice granulating machines, dry ice granulating machines, The dry ice particles produced by the ice machine, dry ice machine) are sprayed onto the surface of the printing machine through the nozzles of the dry ice blasting machine. Because the dry ice volatilizes extremely fast, it will cool down quickly when encountering dirt, and the dirt will be peeled off the surface of the printing machine to make the printing machine Restore the original cleanliness.
6. Ink washing and color changing require the operator to keep an average amount of gasoline from the upper ink roller, and don`t splash the gasoline everywhere.
7. Smoking and open flames are strictly prohibited in the workshop to prevent fires during ink washing and color change.
8. When the offset press is running, you must pay attention to safety when scrubbing the ink roller.
9. In general, there are two situations when washing ink and changing colors. One is to change light-colored ink to dark ink, and the other is to change dark ink to light-colored ink.
It is easier to change the light color ink to the dark ink, and it saves time and effort for the ink roller cleaning. First, use an ink shovel to scoop out the light-colored ink of the ink fountain. As long as the ink scraper is used to clean the light-colored ink on the ink roller, and at the same time, clean the ink skin, paper wool and other debris left on the ink roller.
Offset washing ink color change, dark ink is replaced with light ink. At this time, the cleaning requirements for the ink roller are relatively high, and it is difficult to clean the ink roller. The cleaning degree of the ink roller is relatively high. It requires that the light ink cannot be absorbed by the dark ink. Dirty, if the old ink on the ink roller is not completely cleaned, it will affect the color and hue incorrectly. There will be shadows of dark ink in the light-colored ink. Therefore, the ink fountain, ink roller, ink shovel, etc. must be cleaned. Use an ink spatula to apply the light-colored ink to the ink roller, start the offset printing machine, let the light-colored ink adhere to the ink roller evenly, and then pour gasoline to clean it off.
