Common materials of plastic packaging bags:
1. Polyethylene
It is polyethylene, which is widely used in plastic packaging bags. It is light and transparent. It has the advantages of ideal moisture resistance, oxygen resistance, acid resistance, alkali resistance, heat sealing, etc., and it is non-toxic, tasteless and odorless. Packaging hygiene standards. It is the ideal contact food bag material in the world, and food packaging bags on the market are generally made of this material.
2. Polyvinyl chloride/PVC
It is the second largest plastic variety in the world after polyethylene. It is an ideal choice for plastic packaging bags, PVC bags, composite bags, and vacuum bags. It can also be used for the packaging and decoration of covers such as books, folders, and tickets.
3. Low density polyethylene
Low-density polyethylene is the most widely used variety in the plastic packaging and printing industries of various countries. It is suitable for blow molding to be processed into tubular films, and is suitable for food packaging, daily chemical packaging, and fiber product packaging.
4. High density polyethylene
High-density polyethylene, heat-resistant, cooking-resistant, cold-resistant and freezing-resistant, moisture-proof, gas-proof and insulating, not easy to be damaged, and its strength is twice that of low-density polyethylene. It is a common material for plastic packaging bags.
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Common materials for plastic packaging bags are as follows:
1. PE plastic packaging bag
Polyethylene (PE), referred to as PE, is a high-molecular organic compound obtained by addition polymerization of ethylene. It is recognized as a good material for food contact in the world. Polyethylene is moisture-proof, anti-oxidant, acid-resistant, alkali-resistant, non-toxic, tasteless, odorless, and conforms to food packaging hygiene standards, and is known as the “flower of plastic”.
2. PO plastic bags
PO plastic (polyolefin), referred to as PO, is a polyolefin copolymer, which is a polymer obtained from olefin monomers. Opaque, brittle, non-toxic, often used as PO flat pockets, PO vest bags, especially PO plastic bags.
3. PP plastic packaging bag
PP plastic packaging bag is a plastic bag made of polypropylene. It generally adopts color printing, offset printing, and has bright colors. It is a stretchable polypropylene plastic and belongs to a kind of thermoplastic. Non-toxic, odorless, smooth and transparent surface.
4. OPP plastic bag
The material of OPP plastic packaging bag is polypropylene, bidirectional polypropylene, which is characterized by easy burning, melting and dripping, yellow on the top and blue on the bottom, less smoke after leaving the fire, and continues to burn. It has the characteristics of high transparency, brittleness, good sealing and strong anti-counterfeiting.
5. PPE plastic bags
PPE plastic packaging bag is a product produced by the combination of PP and PE. The product is dust-proof, anti-bacteria, moisture-proof, anti-oxidation, high temperature resistance, low temperature resistance, oil resistance, non-toxic and tasteless, high transparency, strong mechanical properties, anti-blasting High performance, strong puncture resistance and tear resistance.
6. Eva plastic bags
EVA plastic bag (frosted bag) is mainly made of polyethylene tensile material and linear material, containing 10% EVA material. Good transparency, oxygen barrier, moisture-proof, bright printing, bright bag body, can try to highlight the characteristics of the product itself, ozone resistance, flame retardant and other characteristics.
7. PVC plastic bags
PVC materials include frosted, ordinary transparent, ultra-transparent, environmentally friendly low-toxicity, environmentally friendly non-toxic materials (6P does not contain phthalates and other standards), etc., as well as soft and hard rubber. It is safe, hygienic, durable, beautiful and practical, with exquisite appearance and various styles, and it is very convenient to use. Many high-end product manufacturers generally choose PVC bags to package, beautifully decorate products, and improve product quality.
The contents described above are some of the materials commonly used in plastic packaging bags. When choosing, you can choose the appropriate material to manufacture plastic packaging bags according to your actual needs
Post time: Jan-19-2022