How does klun teach you to buy plastic bottles

1. History of plastic bottle development:

In 1980s, as China continuously introduced advanced plastic bottle production lines from abroad, it opened the prelude to "plastic" instead of "glass". From that point, plastic bottles were widely used in the packaging field. The plastic bottle is mainly based on polymer non-toxic such as high density polyethylene (HDPE), polyester (PET), polypropylene (PP), polycarbonate (PC) as the main raw material, plastic molding process and equipment for producing all kinds of plastic bottles advanced, mainly containing various capsules, tablets, granules, powder, capsules, oral liquid solid and liquid etc..

Two. The use of plastic bottles:

At present, most of the medicines, nutrition and health care products, food and drinks sold on the market are packed in plastic bottles. You can go anywhere in the drugstore or supermarket, and you can see products packed in plastic bottles everywhere. Medicines and nutritional health products are mainly used in PET bottles (PET bottles) and HDPE bottles (HDPE bottles). The main beverage is polyester bottle (PET), and daily necessities such as shampoo and shower gel are high density polyethylene bottles (HDPE bottles). The plastic bottle is the biggest characteristic of light weight, non friable, clean and beautiful, and some of its technical indicators and data show that the chemical properties of water vapor permeability, good sealing performance, it is entirely possible to shield and protect the safety of products within the validity period of the product.

Three, choose the principle of plastic bottle:

L plastic bottles, the choice of what materials to do, you must first meet the requirements of non-toxic, no smell, because of the main raw material variety, which requires the comprehensive performance of the material selection, the general selection of tablets of high density polyethylene, polypropylene bottles, such as the need for transparency can choose polyester bottle (PET bottle). Such as the need for higher barrier properties, and light resistance, opaque, with brown PET bottles, liquid dosage form drugs generally used in polypropylene bottles or PET bottles as the main raw materials. At present, the domestic nutritional and food packaging bottles are mainly made of PET or HPDE, and the cap of the bottle is PP

2, the seal of the bottle and cover, the permeability of water vapor. Sealing and water vapor permeability are two important technical indicators of plastic bottles. They play an important role in the stability of the packaged products.

3. The quality standard of plastic bottle products. The quality of the product can be analyzed and judged from the product quality standard of the production plant.

4. Quality assurance system. The audit of suppliers has become an essential part of the purchase of plastic bottles. Through the audit, we can make a comprehensive and correct assessment of the soft and hardware facilities, the technical equipment and the comprehensive quality of the production plant.

5, packaging for medicine, nutrition and health care products, food and beverage absolutely can not use recycled materials issued by the Ministry of health "food with plastic products and raw materials and health management measures" have clearly defined: "where the processing of plastic utensils, containers, food packaging materials, shall not use recycled plastic." The law was issued in November 26, 1990.

Four. Status of plastic bottles