How to buy plastic bottles


1. The development history of plastic bottles: In the 1 […]

1. The development history of plastic bottles:

In the 1980s, with the continuous introduction of advanced plastic bottle production lines from abroad, the prelude of replacing "glass" with "plastic" was opened. Since then, plastic bottles have been widely used in the field of packaging. Plastic bottles are mainly made of non-toxic high molecular polymers such as high-density polyethylene (HDPE), polyester (PET), polypropylene (PP), and polycarbonate (PC) as the main raw materials, using advanced plastic molding technology. And equipment to produce all kinds of plastic bottles, mainly containing all kinds of capsules, tablets, powders, granules, capsules, oral liquids and other solids and liquids.

2. Use of plastic bottles:

At present, most of the medicines, nutritional and health care products, various foods and beverages sold in the domestic market are packaged in plastic bottles. If you go to pharmacies or supermarkets, you can see products packaged in plastic bottles everywhere. Medicines and nutritional health products mainly use polyester bottles (PET bottles) and high-density polyethylene bottles (HDPE bottles), beverages mainly use polyester bottles (PET), and daily necessities such as shampoos and shower gels use high-density polyethylene. There are many bottles (HDPE bottles). The biggest feature of plastic bottles is light weight, not easy to break, clean and beautiful, and some of its technical indicators and a large number of data show that its chemical resistance, water vapor permeability resistance and sealing performance are excellent, it can completely protect the product within the validity period. The product acts as a safety shield and protection.

3. Principles for choosing plastic Rocker Sprayer bottles:

a. No matter what raw materials are used for plastic bottles, they 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 polyethylene is used for tablets. Ethylene and polypropylene bottles. If transparency is required, polyester bottles (PET bottles) can be used. If higher barrier properties are required, and light blocking and opacity are required, brown PET bottles are used. Liquid dosage forms generally use polypropylene bottles or polyester bottles. as the main raw material. At present, the packaging bottles of nutritional health products and food in China are mainly made of PET or HPDE, and the caps are made of PP.

b. The tightness of the bottle body and the cap, and the permeability of water vapor. Airtightness and water vapor permeability are two important technical indicators of plastic bottles, which have a crucial impact on the stability of the packaged product.

c, plastic bottle product quality standards. The quality of the product can be judged from the product quality standard of the manufacturer.

d. 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.

e. Recyclable materials must not be used for packaging medicines, nutritional health products, food and beverages The packaging materials shall not use recycled plastics." The regulations were issued and implemented on November 26, 1990.

4. Status of plastic bottles

Plastic bottles can be seen everywhere in life, and plastic bottles are closely related to people's daily life. There are also large plastic recycling bases in China, but the supervision is not standardized, and the quality is mixed. In addition to many plastic bottles made of recycled materials, it is harmful to people's health, as well as pollution during transportation, which also seriously endangers the health of consumers.