How is heat shrinkable film's used?

PVC shrink film has the advantages of low shrinkage temperature, wide range, strong shrinkage, high speed and high transparency. Disadvantages are poor heat sealing performance, low heat sealing strength, and odor of plastic due to aging during heat sealing. There are also some shortcomings such as low impact strength and brittleness at low temperature. Soft PVC unidirectional shrink film tube is mainly used for multi-piece packaging of small packaged foods. Rigid PVC one-way shrink film tube can be used for the heat-shrinkable outer seal of bottle cap seal, and can also be made into heat-shrinkable sleeve label. Bi-directional shrink PVC film can be used as shrink packaging for fresh fruits and vegetables.

PVC shrink film, with additional ingredients to enhance its heat resistance, toughness, ductility, etc. The top layer of this surface film is paint, the main component in the middle is polyvinyl chloride, and the bottom layer is back coating adhesive. It is a kind of synthetic material that is deeply loved, popular and widely used in the world today. Among the materials that can produce three-dimensional surface film, PVC is the most suitable material.

Because of its unique properties (rain-proof, fire-proof, antistatic, easy to shape) and the characteristics of low investment and high output, PVC film is widely used in building materials industry and packaging industry. Therefore, PVC film has the characteristics of high transparency, good gloss and high shrinkage.