First, the history of plastic bottles :
In the 1980s, as China's introduction of advanced plastic bottle production line from abroad, he opened with "plastic" generation "glass" the prelude, from plastic bottles to be used in a wide range of packaging. Plastic bottle It mainly uses non-toxic polymer such as high density polyethylene ( HDPE ), polyester ( PET ), polypropylene ( PP ) and polycarbonate ( PC ) as the main raw materials, and adopts advanced plastic molding technology. And equipment to produce all kinds of plastic bottles, mainly filled with various types of capsules, tablets, powders, granules, capsules, oral liquids and other solids and liquids.
Second, the use of plastic bottles:
At present, most of the medicines, nutraceuticals, and various foods and beverages sold in the domestic market are packaged in plastic bottles. You can go to pharmacies or supermarkets casually. Products that are packaged in plastic bottles can be seen everywhere. Medicines and nutritional supplements mainly used to polyester bottles (PET bottles) and high density polyethylene bottles (HDPE bottles), beverages mainly used PET bottles (PET), daily necessities such as shampoo, shower gel using high-density polyethylene Bottles ( HDPE bottles ) are more. The biggest characteristic of plastic bottles is light weight, non-breakable, clean and beautiful. Some of its technical indicators and a large number of data indicate that its chemical resistance, water vapor permeability, and sealing performance are excellent. It can be fully installed on the product within the validity period. Products play a role in security shielding and protection.
Third, choose the principle of plastic bottles:
l . Regardless of the plastic bottle chosen for raw materials, it must first meet the requirements of non-toxicity, no odor, etc. Due to the wide variety of main raw materials available for selection, it is necessary to choose the comprehensive properties of raw materials. Ethylene, polypropylene bottles, if you need transparency can choose polyester bottles ( PET bottles), if you need to block higher performance, and block light, opaque, use brown PET bottles, liquid formulations of drugs generally use polypropylene bottles or PET bottles As the main raw material. At present, the domestic bottle of nutritional health food and food is mainly made of PET material or HPDE , and the bottle cap is made of PP material.
2 , bottle body and cover sealing, water vapor permeability. Sealing properties and water vapour permeability are two important technical indicators of plastic bottles. They play an important role in the stability of the products being packaged.
3 , plastic bottle product quality standards. From the production plant's product quality standards can be analyzed and judged the pros and cons of product quality.
4 , quality assurance system. Auditing suppliers has become an essential part of purchasing plastic bottles. Through the audit, a comprehensive and correct assessment of the integrated level of the software and hardware facilities, technical equipment, and quality of the production plant can be made.
5. For the packaging of pharmaceuticals, nutraceuticals, and foods and beverages, absolutely no recyclables shall be used. The Hygiene Management Regulations for Food Plastics and Raw Materials promulgated by the Ministry of Health stipulates clearly: " Where the processing of plastic utensils, containers, foods packing material, shall not use recycled plastic. "regulations is November 26, 1990 promulgated the.
Fourth, the status of plastic bottles
Plastic bottles can be seen everywhere in life. Plastic bottles are closely related to people's daily lives. No one knows no one knows everywhere. There is also a large-scale plastic recycling base built in China. However, supervision is not standardized, and quality is mixed. In addition to the use of recycled materials in many plastic bottles, it is harmful to people's health, as well as pollution during transportation, and it also seriously harms the health of consumers.
The Ministry of Health's “Hygienic Management Methods for Plastic Products and Raw Materials for Food†has a clear stipulation on this: “Where plastics food utensils, containers, and food packaging materials are processed, recycled plastics must not be used.†Waste plastics recovered can be processed into other products. At present, many businesses, driven by their interests, often choose low-cost recycled materials to make products. This is indeed worrying. If you find impurities in the bottle during use and the transparency of the transparent bottle is low, you must be vigilant and polish your eyes.
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