In PP, PE regeneration compound, manufacturers will encounter many difficult problems, and that today we have to give an example. As you know, part of recycled materials are imported from abroad, such as Japan, the United States and South Korea. There is a PP, PE films, is difficult to visually recognize the light, the film transparency and smoothness are better, but the extruder to the car, there will be a small number of black points, the temperature control in the process are also suitable, and no other impurities braced to why that would be such a black point? The reason is that the production of the film at the time because the packaging needs, coated with a UV coating, this coating temperatures around 120 degrees would break down to 150-160 degrees this paint film plasticized coking dimmed is the black dots that appear above. This leads to the film to reduce the price, to bring to production losses. So some manufacturers in the time of purchase must pay attention to this PP, PE film, in order to avoid unnecessary losses.