The number on the bottom of the cosmetic packaging tube represents the meaning

In the daily use of cosmetic packaging material hoses, you will find that there are numbers ranging from 1-5 to the bottom of the cosmetic packaging material hose. So what does the number 1-5 at the bottom of the cosmetic packaging material hose mean? Now the editor of cosmetic packaging material hose processing will follow you carefully.

Number 1: at the bottom of the cosmetic packaging material hose: stands for PET, that is, polyethylene terephthalate

Mineral water bottles and carbonated beverage bottles are all made of this material. Dong Jinshi pointed out that beverage bottles cannot be recycled to hold hot water. This material is heat-resistant to 70°C. It is only suitable for warm or frozen drinks. It is easy to deform when it is filled with high-temperature liquid or heated, and harmful substances to the human body may be dissolved. Scientists have discovered that after 10 months of use, this plastic product may release carcinogens that are toxic to the human body.

Therefore, throw away the beverage bottle when it is used up, and don't use it as a water cup or as a storage container to hold other items.

Number 2: at the bottom of the cosmetic packaging material hose: stands for HDPE, that is, high-density polyethylene

Plastic containers for cleaning products and bath products. At present, most of the plastic bags used in supermarkets and shopping malls are made of this material, which can withstand a high temperature of 110 ℃, and the plastic bags for food can be used to hold food. Plastic containers containing cleaning supplies and bath products can be reused after careful cleaning. However, these containers are usually not easy to clean. The original cleaning supplies remain and become a breeding ground for bacteria. The cleaning is not thorough, so it is best not to recycle.

Number 3: at the bottom of the cosmetic packaging material hose: stands for PVC, that is, polyvinyl chloride

Common raincoats, building materials, plastic films, plastic boxes, etc. Good plasticity and low price. But it can only withstand high temperatures of 81°C. According to reports, the toxic and harmful substances that plastic products of this material easily produce come from two aspects, one is the single-molecule vinyl chloride that has not been fully polymerized during the production process, and the other is the harmful substances in the plasticizer.

Number 4: at the bottom of the cosmetic packaging material hose: stands for LDPE, that is, low-density polyethylene

Cling film, plastic film, etc. are all of this material. The heat resistance is not strong. Generally, qualified PE cling film will melt when the temperature exceeds 110°C, leaving some plastic preparations that cannot be decomposed by the human body. In addition, when food is wrapped with plastic wrap and heated, the fat in the food can easily dissolve harmful substances in the plastic wrap. Therefore, when food is put into the microwave oven, the wrapped plastic wrap must be removed first.

Number 5 at the bottom of the cosmetic packaging material hose: stands for PP, that is, polypropylene

The microwave lunch box is made of this material. It is resistant to high temperatures of 130°C and has poor transparency. This is the only plastic box that can be placed in a microwave oven. It can be reused after careful cleaning. It is important to note that some microwave lunch boxes, the box body is made of No. 05 PP, but the lid is made of No. 06 PS (polystyrene), PS has good transparency, but it is not resistant to high temperatures, so it cannot be the same as the box body. And put it in the microwave. To be safe, remove the lid of the container before putting it in the microwave.