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Industry news

Cosmetic plastic bottle processing situation

Cosmetic plastic bottle processing situation

Cosmetic plastic bottle processing situation

Compared with glass bottles, cosmetics plastic bottles have the advantages of safety, light weight, easy to carry, not easy to damage, beautiful appearance, diversified design, and low energy consumption.

When choosing plastic raw materials, the following factors should be taken into account: the applicability, water separation, oxygen isolation, thermal curvature, transparency, environmental stress cracking, non -toxic, cost, etc.

There are good water-proof raw materials: high-density polyethylene, polypropylene, low-density polyethylene, polyetic methyl anene-1; Nylon, polychida; good transparency with crystalline polystyrene, stretch polyester, styrene-acryline cluster resin, polyvinyl chloride, and acrylic.

The method of production can be divided into two types: stretching the film and the blowing mold. The stretching and blowing mold industry is mainly polypropylene bottle, and polyester bottle has recently developed. Plastics that can be used for stretching molds are polyester, polyvinyl chloride, polystyrene, acryline, polypropylene and polydehyde. Non -fixed plastic is easier to stretch and blow more than some crystals. The tensile and blowing temperature of various materials that can produce the best performance products is as follows:

Polypropylene: 160 ℃

Polytealdehyde: 160 ℃

Polystyrene: 125 ℃

Polyethylene: 120 ℃

Acrylics: 120 ℃

Polyester: 107 ℃