Heat shrinkable film is a kind of thermoplastic film which is oriented in the longitudinal and transverse tension of the film in the production process and shrinkable by heat in the use process. The heat shrinkability of film was applied as early as 1936. At the beginning, rubber film was mainly used to shrink and package foods that are not easy to preserve.

The application range of heat shrinkable film is very broad, and there are many manufacturers producing heat shrinkable film, which leads to the uneven quality of heat shrinkable film. Then we need to know the methods to distinguish the quality of heat shrinkable film. The following small series will introduce some methods to distinguish the quality of heat shrinkable film.

In our daily life, packaging materials can be seen everywhere, in which heat shrinkable films are widely used in all walks of life. The following small series will introduce the classification of heat shrinkable films.

Heat shrinkable film is used for the sales and transportation of various products. Its main function is to stabilize, cover and protect products. The shrink film must have high puncture resistance, good shrinkage and certain shrinkage stress. There are many kinds of heat shrinkable films, which are used in various fields. What are the differences between PE / POF heat shrinkable films?

The calculation of the weight and length of PE winding film are different. It is thought that the weight of each roll is different due to its different length, and the calculation formula is the same. However, for the conversion of some units, we need to pay special attention to the error of sometimes dividing by one decimal point, and the result will be much worse

Hangzhou plastic packaging company tells you the characteristics and application of PE winding film

POF heat shrinkable film characteristics: 1. Tensile strength and impact resistance; 2. Excellent transparency and rich luster; 3. High shrinkage; 4. Hot butt joint, tight without carbon trace; 5. Low temperature resistance

he heat shrinkable film is designed based on the tensile orientation principle of highly oriented molecular chain and formed by rapid cooling. Generally speaking, the heat shrinkable film is POF, or polyolefin shrink film