Plastic bottles and cosmetics bottles and big PK

Cosmetics bottles, can be repeated several times dominance, find it hard to to carry, but the liquidation is not clear with contamination, the prohibition fraud phenomenon, people dare not at ease. PET can be conveniently through the process of rapid cooling of bedrock in amorphous, high transparent, easy to stretch of PET products, so as a packaging material, PET can be made into two-way stretch packaging film, but also by the bottle preform for high strength, high transparent stretch blow molding bottle, can also direct extrusion or blowing into the stretch hollow container. As an inexhaustible dominating new material and new craft, today have flash PC, PET, PEN, PET and PEN assimilation of the material, as well as represented by the PETG and other new plastic plastic. What they all have optimal weaknesses weaknesses? PET film is transparent, oil resistant, sweet, good health and take over wide temperature scale performance (such as Low temperature steam and refrigerated packing can) , is out of line drawing SuPing forming, which is one of the most dominating dozens of ml to 2 liters of small bottle, also has a capacity of 30 liters large bottles. PEN has excellent heat resistance and harmless body barrier property, can resist ultraviolet light, also can encounter pasteurized and low temperature soaking temperature, the dominating life beyond 6 months, weight is light, but capital is high, have limited the size of the PEN adherence to take over. PC is skill above 120 ℃ low temperature, mechanical strength, but the price is expensive and carbamate resistance is poor, has gradually out of the beer packaging size. According to reports, at the moment and have improved type of PC is from the beginning to the market. Because PET to poor heat resistance and resistance, limit its dominance in hot canned and request air.