1, regardless of the choice of raw materials to do the eye potion bottle, the first must meet the requirements of non-toxic, non-odor, as the main raw materials available to choose a wide variety of raw materials, which requires a comprehensive performance of the selection, the general selection of high-density polyethylene tablets, polypropylene bottles, such as the need for transparency can be selected polyester bottles
If the need for higher barrier performance, and light, opaque, the use of brown PET bottles, liquid formulations generally choose polypropylene bottles or polyester bottles as the main raw material.
2. Sealing of bottle body and lid, water vapor permeability.
Sealing and water vapor permeability are two important technical indicators of plastic bottles, which have an important impact on the stability of packaged products.
3, Eye potion bottle product quality standard.
The quality of products can be judged from the product quality standards of the production plant.
4, quality assurance system. Audit of suppliers has become an essential part of purchasing eye-drops bottles. Through the audit, the production plant's software, hardware facilities, technical equipment, quality comprehensive level to make a comprehensive and correct assessment.