In short, customized plastic packaging bags refer to bags used to pack various supplies. They are widely used in daily life and industrial production. Let's learn about the brief knowledge of packaging bags.

In terms of manufacturing technology, it is often divided into plastic packaging bags and composite packaging bags; In terms of production raw materials, there are also high-pressure polyethylene plastic bags, low-pressure polyethylene plastic bags, polypropylene plastic bags and PVC plastic bags. Meanwhile, the composite packaging bag is to combine various materials with different characteristics to improve the air permeability, moisture permeability, oil resistance, water resistance, drug resistance and so on.

Composite flexible packaging materials can be used only when they are made into various packaging bags, and there are two ways to make bags. One is that the manufacturer selects roll film to fill on the active packaging machine and form packaging into various packaging bags; The other is to make bags into various packaging bags by the bag making mechanism, and then fill the contents.