What is a plastic bag

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2018-05-31 06:28:00 998

Plastic packaging bags can be divided into OPP, CPP, PP, PE, PVA, EVA, composite bags, coextrusion bags, etc.

CPP: non toxic, composable, better transparency than PE and slightly worse hardness. The texture is soft, with the transparency of PP and the softness of PE.

PP: the hardness is inferior to OPP, which can be stretched (two-way stretching) to form a triangle, bottom seal or side seal

PE: formalin, less transparent

PVA: with soft texture and good transparency, it is a new type of environmental protection material. It dissolves in water. The raw materials are imported from Japan, which is expensive and widely used abroad

Opp: good transparency and strong hardness

Composite bag: strong sealing strength, printable, ink will not fall off

Coextrusion bag: good transparency, soft texture, printable

The above is the material for plastic bags.