1, sealed packaging:
This package is similar to a shrink wrap package in which the film wraps around the tray and the two hot grips heat seal the film at both ends. This is the earliest use form of the wrap film, and thus more packaging forms have been developed;
2, full width packaging:
This kind of packaging requires a film width enough to cover the tray, the shape of the tray is regular, so it has its use, suitable for film thickness of 17 ~ 35μm;
3, manual packaging:
This type of packaging is the simplest of the wrap film packages, which are mounted on a stand or held by a hand, rotated by a tray or film wound around a tray. It is mainly used for repackaging after the packaged tray is damaged, and for ordinary tray packaging. The packaging speed is slow, and the suitable film thickness is 15-20 μm;
4, stretch film winding machine packaging:
This is one of the most common and widely used forms of mechanical packaging. The tray rotates or the film rotates around the tray. The film is attached to the holder and can be moved up and down. This packaging capacity is very large, about 15 to 18 plates per hour. Suitable film thickness is about 15 to 25 μm;
5, horizontal mechanical packaging:
Different from other packaging, the film is rotated around the article, suitable for long cargo packaging, such as carpet, board, fiberboard, profiled materials, etc.;
6, the packaging of the paper tube:
This is one of the newest uses of stretch film, which is better than the wrap film packaging for old-fashioned paper tube packaging. Suitable film thickness is 30-120 μm;
