Coater Coating Making Machine

Coater Coating Making Machine

1. High precision alloy steel die head make sure the customer can get the best coating effection.

2. Total Machine is controlled by  PLC.Precision control coating speed and glue amount.

3. Increase the film function in some glue or substrate is not suitable for direct knife coating that realize 2 kinds of craftwork (knife coating and film coating.) on one machine.

Coater Coating Making Machine

Characteristics of several coating methods -

Air knife coating:
advantage:
1. Because it is a profile coating, it can provide better shielding performance than any known coating machine.
2. There is no mechanical contact in the metering method, and it will not cause scraping marks.
Disadvantages:
1. The solid content of the air knife coating coating formulation can not be made too high up to 48%, too high solid content will lead to too high viscosity of the coating will make the coating amount difficult to control.
2. Low solids content of the coating will cost a lot of drying costs
3. The low solid content of the coating results in poor water retention, and the coating shrinks severely during the drying stage, ultimately affecting the roughness of the coating.
4. Significant loss of paint, high water consumption, and high environmental pressure.

Metering bar coating:
Advantages:
1. Low requirements for base paper, can adapt to rougher base paper
2. Can adapt to high solid content coating
3. Better shielding
Disadvantages:
1. The adjustable amount of coating is worse than the scraper, and the typical value is 7-11 grams.
2. If you use a grooved stick, you will leave a lot of sticks.
3. When the required coating amount is relatively low, the metering rod is easily worn.

Coater Coating Making Machine

Characteristics of several coating methods -

Stainless steel scraper
The scraper is sheared by a stainless steel sheet and pressed against the blade holder and applied to the upper (coating) rubber roller. Since the stainless steel sheet is soft, the squeegee is not very uniform, and most of the squeegee used on the anilox roll is also used for pre-scraping of the glazing coating.

Comma scraper
Such scrapers are often made of round steel with good strength and hardness. The blade is fixed and does not rotate when the glue is scraped. The strength of the scraper is high, the hardness of the blade is small, and the pneumatic and fine adjustment mechanism can be used to adjust and control the position of the scraper. The coating amount control and the scraping precision are high, and the use is also extremely convenient. Due to its uniform squeegee, it is suitable for precise squeegee coating on smooth rolls.

Bar scraper
This type of scraper is usually made of round rods with good strength and hardness. The round bar is required to rotate when scraping the glue. Sometimes the bar can also be scraped directly onto the substrate. The full runout error of the scraper bar is very small, and it is mostly used for the pre-squeegee coating of the glue bar coating on the light roller. When the glue is sticky, it can also be directly scraped on the substrate with a scraper as a precise scraping agent for the coating mechanism. It can also be used for coating a thicker disposable squeegee.

 

About

Zhengzhou EAST IMPORT AND EXPORT co., ltd . ( a goulian group of company) a manufacturer and exporter for all kind of packaging machinery , like bopp tape coating machines, bopp tape slitting machines. Bopp tape core cutter, bopp tape core loader etc

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