Why do woven bags cause waste when coating films

 First of all, it may be due to the wrong way of returning the car, attaching the cloth, attaching the film, and the color film during the coating process. Then, it may also be caused by failure of the tension controller, sticking of the film edge to the roll, film edge breakage, or splitting of the film. In addition, there are also reasons for the production process, which cause violent ribs on both ends of the finished product winding, or peeling off or missing coating. In addition, changing coating materials, changing specifications, changing paint ratio, climate change, etc. are also related.