Production of food packaging what are the commonly used plastic resin?

food packaging is the sales of any kind of food is essential to the outer packing products, with the surge in demand of food sales in steady. General products by the use of the raw materials of food packaging is plastic resin, with one layer, two layer, or more than two layers of plastic film composite, so food packaging as seen in our daily life is made of what kind of plastic resin?

under the modern development of food packaging bags with the main plastic resin mainly has the following kinds:

1, polypropylene, BOPP, that is, it is often said, it's blocking performance is * good in all plastic resin, strength, hardness and more. Mainly made of thin film materials used for packing food, more suitable for packing food oil amount is larger.

2, polyethylene and PE. It's wet resistance, water resistance performance is good, cut off the gas and organic steam performance is poor, has good chemical stability, in normal temperature and under the condition of acid and alkaline substances normally do not react, oil resistance is a bit poor; Have certain mechanical tensile and tear strength, good flexibility, low temperature resistant.

3, PVC, PVC, its thermal stability performance is poor, sticky flow when the liquidity is poor, need to join plasticizer to improve performance. Cut off the gas and oil and luster performance is higher than PE, are commonly used to pack fresh fruits and vegetables, less main application is used for packaging of beverages and other fruit juice products such as packaging bottle.

4, polyester, or PET, it has excellent resistance air, the wet resistance and oil resistance high barrier properties, chemical stability, high toughness and abrasion resistance 5 to fold the tensile strength of PE 10 times, bright transparent, easy to shape. Meat products are mainly used for packaging containing oil, also can be made into high temperature resistant, cooking frozen food packaging bags.