Stretch film and stretch film are used to wrap all kinds of products for sale and transportation, and play a protective and stable role. The two names refer to the same thing. The concept of stretch film is broader. Stretch film is also called stretch film. Some stretch film can be stretched. Stretch film belongs to the category of stretch film. Stretch film is also called stretch film and heat shrink film. It is the earliest domestic use of PVC as the base material, DOA as a plasticizer and self-adhesive role to produce PVC stretch film. But its cost is high. PE stretch film first uses EVA as a self-adhesive material and has a taste. Later, PIBV and LDPE are used as self-adhesive materials. The substrate is now mainly LLDPE, including C4, C6, C8 and metal PEMPE.
High-Quality Super Stretch Film
From a single layer to two or three layers; now the casting method is mainly used to produce LLDPE stretched films, and early LLDPE stretched films are mostly blown films. This is because the production of casting lines has the advantages of uniform thickness, high transparency, etc., and can be applied to the requirements of high-strength pre-stretching. Because the single-layer casting cannot do single-sided bonding, the application field is limited. The single-layer and double-layer casting are not as wide as the three-layer casting in terms of data selection, and the formula interest is also high, so the three-layer co-extrusion structure is still ideal. High-quality stretch film should have the characteristics of high transparency, high longitudinal elongation, high yield point, high transverse tear strength, and good puncture performance. Stretch film can not only meet the functions of anti-moisture and dustproof, anti-touch steal exchange, transparent display, etc., but also increase the attractiveness of product appearance. Stretch film is widely used in the packaging of various products such as food, medicine, sterilized tableware, stationery and sports goods, craft gifts, printed matter, hardware and plastic products, telephones, electronic appliances, etc.
If you want to buy stretch film packaging machine and stretch film, please contact us the tray packaging machine manufacturer.