1. The tightness and water vapor permeability of the bottle body and the cover. Airtightness and water vapor permeability are two important technical indicators of plastic bottles, and they play a crucial role in the stability of the packaged product.
2. No matter what raw material is selected for the plastic bottle, it must first meet the requirements of non-toxicity and no peculiar smell. Due to the wide variety of main raw materials available, it is necessary to select the comprehensive properties of the raw materials. Generally, high-density poly Ethylene, polypropylene, polyester bottles (PET bottles) can be used if transparency is required, brown PET bottles can be used if higher barrier properties are required, and light blocking and opaqueness are required. Liquid dosage forms generally use polypropylene bottles or polyester bottles. main raw material. At present, domestic nutritional health products and food packaging bottles are mainly made of PET or HPDE, and caps are made of PP.
3, plastic bottle product quality standards. The quality of the product can be judged from the product quality standard of the manufacturer.
4. It is absolutely forbidden to use recycled materials for packaging medicines, nutritional health products, food and beverages. The "Measures for the Hygiene Management of Food Plastic Products and Raw Materials" promulgated by the Ministry of Health has clear regulations on this: "All processing plastic tableware, containers, food Packaging materials, no recycled plastics.”
5. Quality assurance system. Auditing suppliers has become an essential part of purchasing plastic bottles. Through the audit, it is possible to make a comprehensive and correct assessment of the production plant's software and hardware facilities, technical equipment, and comprehensive quality level.
