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How to easily identify the "ID card" of plastic products?

  • Author:Megan
  • Release on :2019-02-19
Each plastic product has an "ID card"-a triangle of three arrows with a digital 1~7. Whatdoes this triangle and number mean separately? Let's take a look at it.



The number "1" means that the material is made of pet, also known as polyethylene glycol ester. Mineral water bottles, beverage bottles are generally made of pet. This material is not resistant to high temperature, only suitable for heating or cold drinks, loaded with high temperature liquid or heating is easy to deform. Scientific research has found that the plastic products are used for more than 10 months and may release harmful substances. Therefore, do not repeatedly use pet-material containers, and do not use it to contain hot liquids so as not to cause health problems.


The number "2" means that the production material is HDPE(high density polyethylene).Containers for cleaning products, bathing products, edible oils, etc., as well as common white medicine bottles, are mostly made of HDPE. Most of the HDPE containers are opaque, feel like wax, have good wear resistance and corrosion resistance, and have a long service life.


The number "3" means that the production material is PVC (polyvinyl chloride). PVC is mostly used to make water pipes, raincoats, plastic boxes and other items. PVC products are strong and durable, but because of its addition of plasticizers, anti-aging agents in the manufacturing process, toxic substances are easily produced at high temperatures, which may lead to diseases such as cancer, birth defects and other diseases after entering the human body.


The number "4" means that the production material is LDPE (low density polyethylene). Fresh-keeping film and plastic film are made of LDPE. Most of the cling film in the temperature of more than 110 ℃ will appear hot melt phenomenon, while releasing some harmful substances to the human body. Therefore, to heat food in a microwave oven, you should remove the wrapped cling film firstly.


The number "5" means that the production material is PP (polypropylene). Microwave oven meal box is made of PP, can withstand 120 ℃ or so high temperature. It is important to note that some microwave dining box box body is made of No. 5th PP, but the lid is made of No. 6th PS (polystyrene), PS transparency is good, but not resistant to high temperature. For insurance purposes, the lid should be removed before the meal box is placed in the microwave oven.


The number "6" means that the production material is PS (polystyrene). PS is commonly used in the manufacture of bowl shaped instant noodle boxes, as well as disposable foam meal boxes and so on. When the temperature is too high, PS will release harmful substances,therefore, do not put bowl-shaped instant noodles box or foam meal box into the microwaveoven heating, but also try not to use them to install hot food, but also can not hold strongacidic or strong alkaline substances.


The number "7" stands for the other. Among the common classes are PCs (polycarbonate), which are mostly used in the manufacture of kettles, water cups, bottles and so on. The production process of the PC added bisphenol A, the European Union believes that bisphenol A in heating can be precipitated into food and beverages, may disrupt the body's metabolic process, the baby's development, immunity has an impact. Most supermarkets in the country have put the PC logo of the bottle off the shelf, the current sales of most of the bottle is identified as PP or "5" material. In addition, there is a PPSU bottle, PPSU full name is Polyphenylenesulfone resin, it does not contain bisphenol A, high temperature up to 207 ℃, is currentlymaking bottles more safe materials.


There are many kinds of plastic products, our factory mostly manufacture cosmetic,food and beverage bottle with PET and HDPE material, we own many existed design mold of them, but encourage you to customize your own brand bottles with special design, if you are in bulk
procurement of plastic packaging bottles, please feel free to contact us to get the latestnews. Hope that the introduction of these can help you to choose plastic products moretargeted, and correctly use, so that our life is healthier and more at ease.