The number 5 in the triangle at the bottom of the plastic product

I used to work in the plastics industry, and if the bottle body is transparent plastic, it is generally PET, and the cap and bottle body are generally made of different materials. But not necessarily. Anyway, why are you studying this ==

That number should be from the model number.

The number indicates the category of raw materials for plastic cups. 1 is PET polyethylene terephthalate, 2 is HDPE

High-density polyethylene, 3 is PVC

PVC, 4 is PE

Polyethylene, 5 is pp

Polypropylene, 6 is PS

Polystyrene. 7 is PC

Miscellaneous. Either one, you can't use the same bottle for a long time, it's harmful to your body.

Figure 1: You can't put it in the sun in the car; Do not fill in alcohol, oil and other substances Number 2: Do not recycle.

Number 3: Don't recycle.

Figure 4: Hazardous substances are produced at high temperatures.

Figure 5: Can be reused after careful cleaning.

Number 6: Do not put in the microwave.

Number 7: PC Other Classes.

1: Stands for PET (polyethylene terephthalate): It is used in general mineral water, carbonated drinks and energy drink bottles. It is resistant to 70 degrees and is easy to deform, so do not put it in the open air or in the car in hot weather, and do not flush boiling water directly into it.

The number 1 is PET

Polyethylene terephthalate.

The number 2 is. HDPE high-density polyethylene.

The number 3 is PVC

Polyvinyl chloride. The number 4 is.

PE polyethylene.

The number 5 is. PP polypropylene.

The number 6 is. P.S. polystyrene.

The number 7 is. PC Miscellaneous.

There is a triangle on the plastic, and there are numbers 1-7 in it, and different numbers represent different materials.

1. The number "1" stands for polyethylene terephthalate, that is, PET.

Uses: Mainly used for mineral water bottles, carbonated water, fruit juice drink bottles and soy sauce vinegar bottles.

2. The number "2" stands for high-density polyethylene, that is, HDPE.

Usage: HDPE is made into composite film with other plastics, and is also used in aquatic products.

3. The number "3" stands for polyvinyl chloride, that is, PVC.

Uses: Used to manufacture intravenous infusion bags and disposable sterile infusion equipment.

4. The number "4" is low-density polyethylene, that is, LDPE.

Uses: It is widely used in packaging, mainly used in the production of plastic wrap for food and plastic bags for food.

5. The number "5" is polypropylene, that is, PP.

Uses: One is to make containers, which can be used as microwave oven lunch boxes, and the other is to make packaging films, which are often used for the packaging of snacks, bread, fruits, etc.

6. The number "6" is polystyrene, that is, PS.

Uses: PS is mainly processed into film and foam on packaging. Film is used for the packaging of fruits and vegetables, and styrofoam is mostly used in bowl-filled instant noodle boxes and fast food boxes.

7. The number "7" is polycarbonate, i.e. PC or other plastics.

Uses: PC material made of plastic containers, do not heat when using, and do not expose to direct sunlight, otherwise toxic bisphenol A may be released, the higher the temperature, the more it is released, and the faster the speed.