What to pay attention to when operating the protective film coater

The protective film coating machine will follow two operation processes during operation. Thickness setting process of clockwise roll; Reverse the coating handling process of the roll. ‍
Occasionally, in order to increase the output value, the traveling coating speed is selected to present the air entrapment hazard. In order to eliminate this hazard, the operation method of reducing the vacancy is selected. Too small empty space makes the coating roll and back roll knead each other, which additionally increases the load of the motor and reducer, forming abnormal wear. This is also the reason why the coating speed of the slurry in the reverse roller is limited.
Protective film coating machine reverse roll coating and its coating window: in the polar coating machine, the slurry coating on the coating roll is carried to the copper foil or aluminum foil wrapped on the back roll in the opposite direction of the change in the bright roll empty area. Therefore, its coating process is also necessary to meet the rules of reverse stick coating. In the process of reverse roller coating, if the gap between the two rollers is relatively small, the capillary number is low enough, that is, in the case of relatively small viscosity or speed, the activity within the relatively wide speed ratio decision is relatively stable. Good coating apparent quality can be obtained. If the vacancy is relatively large, when the coating speed is high, it will simply show air entrapment, and there are many fine bubbles on the coating surface.