Micro Roller System

Function/Description

The coating system called Kisscoater for materials with a low or medium viscosity which has been used as application system for quite a long time now, has been advanced by COATEMA. Basically, the system consists of an application roller and two guiding rollers.

The system offers the user a multitude of adustment possibilities. The control of the coating unit can be influenced by the positioning of the guiding rollers and the web tension as well as by the proportion of the application roller´s speed to the plant speed. The positioning of the guiding rollers determines the contact angle between the applicating roller and the substrate. Here, a variation between a large wrap angle and the application of the coating raw material into the substrate and al small wrap angle and a linear contact between the substrate and the application roller.

With the linear contact, the coating raw material is only applicated onto the substrate´s surface. Apart from the adjustment of the contact angle between the application roller and the substrate, the quantity of coating raw material is determined by the speed of the application roller. Here, a higher speed in relation to the substrate´s speed entails a higher coating weight.

Examples