PVC film is a film made of polyvinyl chloride, which is yellow and translucent, and its transparency is slightly higher than that of PE\PP film. It can be divided into soft film and hard film according to the content of additives.
Films are currently mainly used in furniture decoration films, toys, wire sheaths, adhesive films, etc.
At present, most of the PVC films we use are composed of three layers. The first layer is paint, the second layer is PVC material, and the third layer is adhesive. This three-dimensional surface film is very popular in the industry.
welcome. The production process of PVC film is relatively simple. Usually, the 5-type material and the 7-type material are washed and dried, and then put into a high-speed mixer for blending, and the temperature is kept in the range of 130-140 ° C.
Add auxiliaries, raise the temperature to 150-180°C, and after blending for 10 minutes, introduce it into a filter to remove impurities, then calender to form a film, and finally wind up through a cooling process.
Application of PVC film
PVC film can be made into swimming rings, toys, rain boots, tablecloths, decorative films, tapes, etc. through voltage, inflation, gluing and other processes. Of course, its softness and hardness are different, and its function is also
Different, soft PVC film, mainly used in advertising film, tablecloth, leather, etc.; rigid PVC film, can be used for sheets and other rigid products, it is worth mentioning that rigid PVC film
The content of calcium acid is strict; semi-rigid PVC film is mainly used in floor film, furniture decoration film and so on.
PVC film is a widely used film at present. It has abundant raw material resources and low price. It is in great demand in construction and daily necessities, but because of its high sensitivity to temperature
Therefore, the application of PVC film in packaging film is negligible. At present, the industry is also actively developing heat-resistant agents to improve the heat-resistant performance of PVC.