How to distinguish the good and bad of plastic products?

How to distinguish the good and bad of plastic products? The food plastic bottle manufacturer introduces you to:

How to distinguish plastic products, visual: transparent and colorless products look good in transparency and no impurities, the quality of products is good (mostly raw pellets) such as fresh-keeping bags, cups, lunch boxes, crisper products; transparency Goods that are not high or look a lot of impurities are slightly worse in quality (mostly raw powder production) such as storage boxes, pots, hangers, and stools.

The opaque goods are mostly commodities with poor merchandise (mostly for the production of recycled materials, but the return materials will be divided into many kinds of materials such as those produced by the manufacturer's trimming; the dealers return the products of the manufacturers), such as garbage bins and garbage. Barrel liners, garbage bags of goods.

Smell: smells very light, but there are light plastics that are mostly of better quality; smells of plastic is very thick and the quality is slightly worse; smells of plastic is very heavy and has a pungent taste. For poor quality goods.

Tactile: Touching the edge of the product, there is no feeling of picking up the hand, the edge is relatively clean and the mold is better, and the flashing edge is also better; the touch is very handy, the edge is very rough and the mold is very poor. How to choose plastic bags Plastic bags should be purchased in large shopping malls and reputable supermarkets. There are also some simple methods to roughly identify plastic bags with good safety: the hand feels smooth, the vibration is crisp, the white smoke is flammable in case of fire, the water is surfaced, the water is odorless, and there is no color.