PVC heat shrinkable film is in the production process

PVC heat shrinkable film is stretched at a temperature above the softening point of the film and below the melting point during the production process. The molecules are aligned. When the film is cooled down sharply, the molecules are 'frozen'. When the film is reheated to be stretched When the temperature is high, stress relaxation will occur, that is, the oriented molecules will de-orientate, causing the film to shrink. The greater the degree of orientation, the greater the thermal shrinkage rate, and the smaller the degree of orientation, the thermal shrinkage rate is small.

The transparency of PVC heat shrinkable film is good, the shrinkage rate is high, and the transverse direction is between 35%-45%, and its cost is low, the tensile strength is large, the temperature shrinkage range is large, and the heat source is not required (80-100℃) , The main processing heat source is hot air, infrared rays or a combination of the two.

PVC heat shrinkable film is in the production process

PVC heat shrinkable film is suitable for the packaging needs of products in all walks of life. It can be used for single or small collection packaging, or large tray packaging. It can be used for doors and windows, aluminum, plaster lines, stainless steel pipes, stationery, toys , Paper products, beverages, hardware appliances and other heat shrink packaging. The use of PVC heat shrinkable film to package goods can not only save packaging materials, but also reduce packaging costs and beautify the goods.