Mold Date stamp of MISUMI

Recognize the environmental recycling mark on plastic (material)

The American Industry Association (SPI) issued a set of plastic marking schemes in 1988. They attached triangular recycling marks to plastic products, and used numbers 1 to 7 and English abbreviations to refer to the types of resin used in plastics. In this way, the identification of plastic varieties becomes simple and easy, and recycling costs are greatly reduced. Many countries in the world today have adopted this set of SPI marking schemes. China formulated almost the same labeling standards in 1996. The recycling label on plastic is one of the most common environmental labels. Its meaning can generally express three Rs: Reduce (degradable reduction), Reuse (renewable), and Recycle (recyclable regeneration treatment).

PET: Polyethylene Terephthalate.
Mineral water bottles and carbonated beverage bottles are all made of this material. Dong Jinshi (famous environmental chemistry expert and environmental protection expert) pointed out that beverage bottles cannot be recycled to hold hot water. This material is heat-resistant up to 70°C. It is only suitable for warm or frozen drinks. It is easy to deform if it is filled with high-temperature liquid or heated. Dissolution of harmful substances to human body. Scientists have discovered that this plastic product may release carcinogens after 10 months of use, which is 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. So as not to cause health problems and the loss outweighs the gain.

PEH: High density polyethylene.
Plastic containers for cleaning supplies and bath products are currently in supermarkets and
Most of the plastic bags used in shopping malls are made of this material, which can withstand high temperatures of 110 ℃, and the plastic bags marked 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 and it is best not to recycle. The containers are mostly semi-opaque and feel like wax.

PVC: Polyvinyl chloride.
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 is not fully polymerized during the production process, and the other is the harmful substances in the plasticizer. These two substances are easy to separate out when encountering high temperature and grease. After the toxic substances enter the human body with food, they are easy to cause cancer. At present, containers of this material have been seldom used for packaging food. If it is in use, never let it get hot. It is mostly used to make water pipes, raincoats, school bags, building materials, plastic films, plastic boxes and other utensils.

PE-LD: 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℃, 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 the harmful substances in the plastic wrap. Therefore, when the food enters the microwave oven, the wrapped plastic wrap must be removed first.

PP: polypropylene.
The microwave lunch box is made of this material, resistant to 130 ℃ high temperature, poor transparency, this is the only thing that can
Put it in the plastic box of the microwave oven, and 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. And put it in the microwave. To be safe, remove the lid of the container before putting it in the microwave. It is mostly used to make water buckets, trash cans, baskets, baskets and microwave oven containers.

PS: polystyrene
This is the material used to make bowls of instant noodle boxes and foaming snack boxes. Heat-resistant and cold-resistant, but not
It can be put in a microwave oven to avoid the release of chemicals due to high temperature. And can not be used to contain strong acids (such as orange juice), strong alkaline substances, because it will decompose polystyrene which is not good for the human body. Therefore, you should try to avoid using fast food boxes to pack hot food. Because of its low water absorption, it is mostly used in the manufacture of building materials, toys, stationery, rollers, as well as cups and disposable tableware used in fast-food stores to hold drinks.

PC: Poly Carbonate

PC is a material that is widely used, especially for the manufacture of baby bottles, space cups, etc. In recent years, milk bottles have been controversial because they contain bisphenol A. Experts pointed out that in theory, as long as 100% of bisphenol A is converted into a plastic structure in the process of making PC, it means that the product is completely free of bisphenol A, let alone released. However, if a small amount of bisphenol A is not converted into the plastic structure of PC, it may be released into food or drink. The residual bisphenol A in PC, the higher the temperature, the more release and the faster the speed. Therefore, the PC water bottle should not be used to hold hot water. If the container is broken or damaged, it is recommended to stop using it, because if there are fine pits on the surface of the plastic product, it is easy to hide bacteria. Avoid repeated use of aging plastic utensils.