Production and application of PVC heat shrinkable film

PVC heat shrinkable film is produced by secondary blow molding processing technology, that is, the powder is made of one-time plasticization granulation and secondary plasticization and film blowing. This method adds a sufficient amount of stabilizer and lubricant, so the production cost is high. In addition, because of the additional plasticization process, the product is polluted in the production process, which affects the yield rate. With the development of China's plastics industry, the application of plastic products has penetrated into various fields, especially in packaging, plastic products with its high quality and low price, is replacing other packaging materials, PVC heat shrinkable film as a packaging material has been widely used.

PVC heat shrinkable film can be used for insulating packaging of doors and windows, aluminum, building materials, electrical appliances, electronic components (such as the outer packaging of dry batteries), aluminum packaging of doors and windows, and packaging of general items. It is used as a packaging material, not only to simplify the packaging process, reduce the packaging volume, but also because the shrinkage of the transparent film tightly wrapped in the packaged goods, can clearly show the color and shape of the goods, so PVC heat shrinkable film is widely used in commodity packaging.