袋子知识

There are various materials for PVC bags, among which the more common ones are polyethylene (PE) and polyvinyl chloride (PVC).

Polyethylene (PE): It is the most widely used and important material for plastic bags and plastic products, and is currently the most ideal contact material for food bags in the world. Food packaging bags on the market are generally made of this material. Polyethylene is lightweight and transparent, with advantages such as ideal moisture resistance, oxygen resistance, acid resistance, alkali resistance, and heat sealing. It is also non-toxic, odorless, and odorless, meeting food packaging hygiene standards.

Polyvinyl chloride (PVC): It is the second largest plastic variety after polyethylene, and is also an ideal choice for plastic packaging bags, PVC bags, composite bags, vacuum bags. It can also be used for packaging and decoration of books, magazines, folders, tickets, and other covers.

In addition, there are PVC bags made of materials such as polypropylene (PP). These materials of PVC bags are widely used in production and daily life, but they also need to be selected according to specific purposes and needs.