What kind of product is plastic bottle? It may be used frequently in many people's lives, but from many aspects, we can understand its selection principles from four aspects. Here we can give you a brief introduction, if you are interested, you can have a look.

1、 Sealing of bottle body and cap, water vapor permeability. Sealing and water vapor permeability are two important technical indicators of plastic bottles, which have a critical impact on the stability of packaged products.

2、 Quality assurance system. The audit of suppliers has become an essential part of the purchase of plastic bottles. Through the audit, the comprehensive level of software and hardware facilities, technical equipment and quality of the manufacturer can be correctly evaluated.

3、 Quality standards for plastic bottles. The quality of products can be analyzed and judged from the product quality standards of the manufacturer.

4、 Any plastic bottle must first meet the requirements of non-toxic and odor-free. 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 polyethylene and polypropylene bottles are used for tablets. If transparency is required, polyester bottles (PET bottles) can be used. If higher barrier performance, light resistance and opacity are required, brown PET bottles are used, Polypropylene bottles or polyester bottles are generally used as the main raw materials for liquid dosage form drugs. At present, the packaging bottles of nutrition and health products and food in China are mainly made of PET or HPDE, and the caps are made of PP.