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Coating Machines

The coating machine is mainly used for the surface coating process production of films, papers, etc. This machine is used to coat a roll of substrate with a layer of glue, coating or ink with a specific function, and then wind it up after drying.

Definitions and materials

The coating machine is mainly used for the surface coating process production of films, papers, etc. This machine is used to coat a roll of substrate with a layer of glue, coating or ink with a specific function, and then wind it up after drying.

It uses a dedicated multi-functional coating head, which can realize various forms of surface coating production. The unwinding and unwinding of the coating machine are equipped with a full-speed automatic film receiving mechanism, and the PLC program tension closed-loop automatic control.

Classification

Brush
Brush coaters are the oldest coating equipment and were originally used in the 1850s to produce coated wall paper using porcelain clay coatings. There are 3 different types of brush coating heads: round brush coating head, blanket roll coating head and blanket cover coating head. Figure 1 shows an early-use brush applicator.

Air knife

Scraper
According to the different feeding equipment, the type of blade and the installation position of the blade, the blade coating head is also divided into many types, such as hard blade doctor coater, drag knife doctor coater, soft blade doctor coater, fountain Material blade coater, short stay blade coater, Bill coater, roller coater, etc.

Roller
Roller coating is the application of a coating to a coating surface with a coating roller, and this type of coating machine is mainly used for in-machine coating. The coating amount can be adjusted by the pressure between the metering rollers. When the pressure is strengthened, the throughput of the coating is reduced, and the coating amount is also reduced. Type of roll coater:
1.Squeezing roller coating head
2.Reverse roller coating head
3.Transfer roller coating head
4. Gravure roller coating head

Spray coating
Spray coating technology is a non-contact coating method, which can apply single-sided or double-sided coating (gluing) to paper or cardboard using controlled high-pressure spray technology.

Curtain coating
The multi-layer curtain coater can give the inkjet printing paper a three-layer structure (bottom layer, absorbent layer and top layer) after only one coating operation, and can obtain a uniform coating on the uneven paper surface.

Slit coating
The slit coating head includes a coating liquid storage tank; a pump for feeding the coating liquid in the coating liquid storage tank to the nozzle through a supply pipeline; a control part for controlling the work of the pump and the nozzle The pressure detection section is used to detect the pressure of the pipeline, and the nozzle excludes the coating liquid when the pressure reaches a predetermined pressure condition.

Use

Applicable to the shoe material, electronics industry, sponge, EVA, PE, cloth, etc.

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