Printing gravure, flexographic anilox roller, and coating roller cleaning method

Coating rollers for dry lamination are usually cleaned with a glue tank and a circulation pump after the end of daily work (except for 24 hours operation). It is difficult to completely remove the glue with ethyl acetate. A small amount of glue remains on the applicator roller, and it can be plugged for a long period of time. Once the glue hardens, it cannot be dissolved by ethyl acetate. When the work is performed in the case of a sewn plate, due to a decrease in the amount of glue applied, problems such as a poor appearance (bubbling) and a low release temperature are caused.
In order to prevent such quality complaints from occurring, we should periodically use a stripper (wash solution) to clean the applicator roller to obtain a stable coating amount. The following records the washing method and precautions with the plate cleaner.
Procedure: 1. The plastic water tank and the coating roll are washed with ethyl acetate. 2. Place 3-4 sheets of film in the plastic tank (OPP, PET, CPP, LLDPE, etc.). 3. While rotating the applicator roller at a slow speed, apply a plate cleaner to the surface with a paint brush, and then allow it to stand for 5-10 minutes (hardened glue will be quickly absorbed to the surface of the roller). 4. Brush the surface of the roller 2-3 times with a metal brush. 5. Do not wash it again with a brush. 6. Wash the solution with 2-3L of ethyl acetate and a fine copper wire brush. 7. Remove the film containing ethyl acetate from the bath solution. 8. Add about 10L of ethyl acetate to the applicator roll in the tank, and slowly rotate the applicator roll while using a metal brush and a wire cloth to wash it until it is clean. 9. Repeat 7 again. 10. Repeat steps 8 and 9 again (in order to completely remove foreign matter). 11. Prepare 3-5 L of ethyl acetate, and wipe it with a wire from the top of the coating roll. 12. Wipe the applicator roller with a clean, dry wire. 13. Remove the ethyl acetate from the tank and place the film. About 30 minutes or so, the operation is finished.
It is hoped that the above cleaning operations will be performed once a week or two weeks. (Clean well every week, or wash it once every 2 weeks. It should be performed according to the appearance of the product.) Also note that: 1. Wash solution SP-752 is a strong acid solution. It must be worn with rubber gloves, protective glasses and masks. And other protective supplies. 2. Ethyl acetate used in step 5-11 in the operation step can still be used if it recovers without foreign matter in step 6-8. 3. The washing solution has a corrosive effect on the metal. If you leave the applicator roll coated with the plate solution for more than 1 hour, the chrome plated applicator roll may peel off, and the cleaning must be completed in 1 hour. (Chen Shaodan)

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Suzhou Herstar Medical Technology Co., Ltd. was established in 2021 by Ms.Liu Caixia, chairman of Suzhou Hosun Machinery Co., Ltd. (Suzhou Hosun Machinery Co., Ltd. was established in 2002 with a registered capital of 10 million and is located by the shore of the beautiful Taihu Lake.) After 20 years of unremitting efforts, Hosun people have always been clientoriented and strive to provide high-quality products and services for our customers, who are world-class brand customers as the main body. We adhere to the course of action of "Passion First: 100% integrity,professionality, and concentration!" We also insist on the principle of "win-win cooperation" and do our best to provide customers with flawless products and services beyond expectations. At present, we have clients from all over Europe, America, Japan, Southeast Asia, and other places.

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