Mayer Bar Coating Machine

Mayer Bar Coating 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.

Mayer Bar Coating Machine

Characteristics of several coating methods -

1. Characteristics of air knife coating process:
The advantage of air knife coating is that a thick coating amount can be obtained, the coating layer is relatively uniform, and paper breakage is less likely to occur during coating. The disadvantage is that since the coater of the coater is an invisible air knife, it is necessary to require the paint to be soft and easy to control in order to scrape off excess paint and smooth the coating. In addition, the air knife formed by the air jet is more likely to cause the splash phenomenon of the paint, and the splash of the paint easily causes partial clogging of the air knife gap, resulting in unevenness of the coating layer.

Scraper coating:
advantage:
1. Can make the paper get higher smoothness and gloss
2. The operability is higher than the air knife and the measuring rod, and the adjustment precision is higher than the latter two.
Disadvantages:
1. High requirements for base paper (to have good flatness, smoothness, sizing degree, etc.)
2. If it is used for topcoating, it also has higher requirements for lining (lower macroscopic roughness, but with appropriate micro-roughness)
3. This performance is good without air knives and measuring rods.
4. Easy to scratch the knife.

Mayer Bar Coating Machine

Comma roll coating application case:
- 2 -  
Various optical films, protective films, film films, matte flexible packaging films.


Slot-Die Coating:
     The Slot Die coater is a high-precision coating method in which the coating glue is pressed from the reservoir to the nozzle through the supply line, and the glue is ejected from the nozzle to be transferred to the coated substrate.
advantage:
1. The coating effect is good, and the coating amount is flexibly controlled by the micro-motion adjustment of the coating blade, and the coating precision is high.
2. It can coat the discontinuous mode, and the coating range can be adjusted freely. It does not need to use the baffle plate, and it will not produce the stain phenomenon caused by the difference in edge thickness.
3. Cleaning and disassembly is easier.
4. Helps to maintain a clean, high level, the channel through which the glue flows as a whole can be sealed to prevent the entry of other contaminants.
Disadvantages:
1. The partial structure of the entire Slot-die coating head is complicated, and the processing precision of the rubber roller, the coating roller, the traction roller and the scraper is required to be high, so the cost is higher than other coating methods.
2. Due to the high precision, it is difficult to use and operate.

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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