Colorless, odorless, tasteless, non-toxic

- Jan 19, 2018 -

What is plastic bag material: Plastic in our modern society is an indispensable material, up to the satellite, the plane, down to the phone, ball-point pen. Plastic everywhere, these plastics are petrochemical products. Plastic film is one of the varieties, plastic bags are plastic bags made of plastic Sheng bag. Plastic made of plastic bags are roughly five kinds:

   (1) Polyvinyl chloride (PVC) In the 1950s and 1960s, most of our plastic bags were made of polyvinyl chloride. Because they contain additives to improve the processability and plasticizers to increase the flexibility of the film, these additives Toxic, not dressed in food, so in addition to special non-toxic hard film for packaging, the other has rarely seen in the market.

    ⑵ low pressure polyethylene (HDPE) HDPE film is generally used for higher tensile and impervious places. HDPE film is also commonly used in commodity bags, grocery bags and food packaging. Daily life requirements of high strength, good waterproof, good impermeability bags are used in this product.

   ⑶ high pressure polyethylene (LDPE) LDPE film made with good optical properties, strength, flexibility, tightness and slow odor diffusion and chemical stability. Because of its excellent performance and processability, coupled with its non-toxic, the price is relatively low, the vast majority of the current use of plastic bags of this type of product.

   ⑷ polypropylene (BOPP) BOPP film is a biaxially oriented polypropylene film, is a very important flexible packaging material, colorless, odorless, tasteless, non-toxic and has high tensile strength, impact strength, rigidity, Toughness and good transparency. BOPP film after corona treatment, good printing adaptability, you can color printing and get beautiful appearance, which is often used as a composite film surface material. Now colorful food, cold drink packaging film is BOPP.

  ⑸ other plastic film: polyester, polystyrene and composite films


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