Polyester plastic (PET) bottle is one of the most important packaging containers. It is mainly used for pharmaceuticals, carbonated beverages, and can also be packaged in alcoholic beverages, tea beverages, juices, mineral water, edible oils, spices, cosmetics, pesticides, and Detergents and other liquid packaging. As a medicine packaging container, the PET bottle has various advantages. Firstly, the PET bottle is light in weight, easy to be molded, and the bottle body is firm. The strength and elasticity are significantly higher than those of other plastic materials, and can withstand considerable impact. Damaged, the most suitable for thin, light, high strength pharmaceutical bottles.
After the advent of the early 1980s, the PET bottle source in China began to develop rapidly with an irresistible trend. Within a short period of 20 years, it has become the world's leading liquid and solid packaging form. In the field of pharmaceutical packaging applications, the PET bottle weighs about 1/10th of the glass bottle when the volume of the loaded drug is the same. The same outer diameter of the bottle, the PET bottle has 1.5 times the capacity of the glass bottle. Transparent or opaque brown bottles can be made from PET stock.
Medicinal PET bottles have good gas barrier properties. Among commonly used plastics, PET bottles have the most excellent barrier to water vapor and oxygen and can fully meet the special storage requirements for pharmaceutical packaging. PET has excellent chemical resistance properties and can be used for packing all articles except strong alkalis and some organic solvents. The PET resin has a higher recycling rate than other plastics, and when burned as a waste, it has a combustion heat card. It is low in value and flammable and does not produce harmful gases. Food packaging made of PET meets food hygiene requirements because PET resin is not only a harmless resin, but also a pure resin without any additives. It passes quite strict food hygiene including the United States, Europe and Japan. The inspection of the law is considered as a qualified and safe packaging material for medicines and foods. Polyester resins are polymers that contain an ester group in the main chain of the polymer. Polyester applications generally refer to linear polyesters: polyethylene terephthalates. It is transparent, high tensile strength, good heat and low temperature resistance, non-toxic, light weight, good chemical stability, good barrier to oxygen and vapor, and good barrier to odor. These advantages make it a leader in plastics. At present, the world's production is growing at a double-digit rate. Pharmaceutical plastic bottles made of polyester as the main raw material are one of the most ideal varieties in terms of appearance, gloss, and physical and chemical properties.
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