Generally, there are PET plastic, PP plastic, and PETG plastic.

Most of the packaging containers for ordinary cosmetics and detergents are made of high-density polyethylene. In order to meet the packaging requirements of different products, the materials used in plastic bottles are becoming increasingly rich. ?

Because transparent plastic bottle containers allow consumers to clearly see the contents, consumers are increasingly demanding transparent PP plastic bottle containers, and transparent polypropylene is the main material to meet this requirement. Material.

The development of pp transparent packaging bottles has been a hot topic in plastic bottle packaging at home and abroad in recent years. Highly transparent polypropylene container (PP plastic), with good transparency and gloss, highly appreciable and very popular.

PET is polyethylene terephthalate, and PETG is polyethylene terephthalate-1,4-cyclohexanedimethanol. Compared with PET, it contains more 1,4-cyclohexanedimethanol ***polymer monomer, so its performance has its own uniqueness compared with PET.

In the field of actual common products, PET is mainly used for the packaging of various beverage containers, such as pure water bottles like Nongfu Spring and beverage bottles like Coke.

PETG is used in various long-term daily necessities, such as cosmetic bottles, perfume bottles, pharmaceutical packaging containers, etc. Compared with PET, PETG has higher transparency, better chemical resistance, better oil resistance, and better weather resistance (yellowing) than PET.

The purchase cost of PETG is 2-3 times that of PET. When buying cosmetic bottles, PETG is a better choice.

PET bottles:

PETG bottles:

PP bottles:

Extended information

Identification of plastic containers Safety method:

When using plastic containers, be sure to read the numbers marked in the triangle at the bottom of the bottle. Only by understanding the material properties can it be used in a suitable environment. A triangle formed by three arrows is usually printed on the bottom of a plastic bottle, with a number ranging from 1 to 7 in it.

For example: "PET" is marked under the number '1'. This is a substance with the chemical name of 'polyethylene terephthalate', which is commonly used in mineral water bottles and carbonated bottles. Beverage bottles, etc. When PET is heat-resistant to 70°C and is easily deformed, substances harmful to the human body will dissolve. At the same time, it cannot be exposed to the sun in a car, and do not contain alcohol, oil and other substances. ”

Recently, a post titled “You know the toxicity of plastic bottles from the number on the bottom? Ignorance kills people” has been circulated in many forums.

The post explains in detail The meaning of the numbers on the bottom of plastic bottles describes in pictures and texts many hidden taboos about the use of plastic bottles No. 1 to 7.

A 12-year-old girl in the United Arab Emirates was also accused of using the same plastic for 16 consecutive months. Mineral water bottles get cancer. This No. 1 PET plastic bottle may release a carcinogen called DEHP after repeated use for 10 months.

"DEHP" is a common type in industry. Plasticizers are mainly used in the processing of paints, dyes, and packaging materials. Yuan Huilin, a professor at the Department of Materials Engineering of Beijing University of Chemical Technology, told reporters that the plastic products such as mineral water bottles we use every day, as long as they are manufactured by regular manufacturers and pass the test. , will not contain this substance, so there is no such thing as "release"

"Consumers should try to avoid repeated use of plastic utensils that are aging and easily deteriorated, and it is best not to reuse beverage bottles multiple times. Otherwise, it is easy for bacteria to breed and pose a health hazard. ”

Yuan Huilin reminds consumers that when using plastic containers, they must read the numbers marked in the triangle at the bottom of the bottle. Only by understanding the material properties can it be used in a suitable environment. Be especially vigilant. Yes, products on the market that are recycled and recycled from plastic waste.

According to my country's relevant regulations, purchased recycled materials and contaminated raw materials cannot be used to make products such as plastic packaging containers and tools for food. Recycled baby bottles and containers are usually rough in workmanship and have no trademarks or environmental recycling labels.

These products themselves are very thin and will deform almost as soon as they are pinched by hand. They are also accompanied by a pungent smell; they can be harmful to the human body. Take the gas decomposed from plasticizers as an example. When it enters the human body, it will cause symptoms such as shortness of breath and accelerated heart rate. If absorbed in large quantities, it may also cause central nervous system disorders and gastrointestinal discomfort.

Baidu Encyclopedia-Transparent Plastic Bottles-Development Prospects

Baidu Encyclopedia-PETG Plastic-Cosmetic Packaging

Baidu Encyclopedia-PET Plastic-Uses

People's Daily Online-Which plastic bottle is safe?