PVC is used as the base material for the production of twisted film. It is also called PVC winding film or stretch film, which is commonly used in product packaging.

 

Plastic film is the main part of the winding film, and it is still in constant reform for the development of environmental protection concept now. At present, materials are mainly extended to LLDPE, including C4, C6, C8 and metallocene PE. From monolayer to two and three layers, it is more durable and durable.

 

The enterprise uses wrapping film packaging mode, automatic packaging and manual packaging. Automatic packaging requires that the film width is enough to cover the pallet. The shape of the pallet is regular, so it is suitable for use. It is suitable for film thickness of 17 - 35 m. Manual packaging is the simplest wrapping in wrapping film. It is mounted on a rack or handheld, rotating by a pallet or rotating around a pallet by a membrane. It is mainly used for re packaging of damaged pallets and ordinary pallet packaging. The packaging speed is slow, and the suitable film thickness is 15 - 20 m.

 

However, with the development of the times, the wrapping of winding film is a new change. It has a drawing film winding machine, which is rotated by a tray or a film around the tray. The film is fixed on the scaffold to move up and down, about 15 - 18 plates per hour. The packaging capacity is very large, and the suitable film thickness is about 15 - 25 m.

 

No matter how to develop, the use of winding film is indispensable in the enterprise. The direction of future development is to make the winding film more economical and environmentally friendly, so as to better apply to the social development.