Net roll coating

This kind of coating equipment mainly uses reticulated (concave eye) coating stick for glue, its coating is not uniform, and the coating amount is accurate, but the disadvantage is that the coating amount is difficult to adjust. With roller coating, coating and roller concave hole depth and glue itself (viscosity, solid content).

Scraper coating

Scraper coating often appears on the glue is not uniform, mainly with the processing accuracy of the scraper, scraper installation method of coating scraping to the Angle of the back rubber wheel and the viscosity of the coating has a great relationship. The flatness accuracy of the scraper is high, that is, the scraper is not warped deformation or gap, otherwise the coating error is large. When coating, the tangent Angle between the scraper and the fusilier point of the upper rubber wheel is generally between 15o and 30O. If it is too large, it will scrape almost against the back rubber wheel. When the back rubber wheel runs at a high speed, the scraper is easy to cause vibration, resulting in uneven coating and large difference in coating amount. In addition, it will also cause the coating of the film surface is not smooth, there are scratches, but also easy to cause blade damage.

Micro-concave

Micro-concave roller scraper is very different from most traditional roller scraper. The main difference lies in the flexibility of the scraper and the contact Angle between the scraper and the micro-concave roller. Compared with the traditional aniline roller scraper, the micro-concave roller scraper should be selected with thinner thickness and stronger toughness. The pressure of the scraper on the concave roller should be as light as possible. The contact Angle between the scraper and the concave roll is steeper than that of the traditional aniline roll.