Bale film and plastic wrap film are cast films, which are non-stretching and non-directional flat-extruded films produced by melt casting quenching.
Bale film is used as a protective film for wrapping goods. It is hard and has poor transparency. It can only provide protection for goods, but cannot improve the beauty of goods.
Plastic wrap can be used for microwave oven food heating, refrigerator food preservation, raw and cooked food packaging and other occasions, soft body, easy to tear or cut open, with adhesive, but no thermal shrinkage, heating will not wrap the product.
Compared with baling film and plastic wrap, the heat-shrinkable film has a soft body and high transparency. It will shrink the wrapped product when heated, and the shrinkage rate reaches more than 70%. It has high protection performance, and will not be torn apart easily due to transportation collision.