Blister packaging materials are the main raw materials for packaging production. After a whole product is produced, a single small product will be left, and then some products will be left behind. Generally speaking, people who don’t know how to distinguish are often confused.Share this article for everyone Know more about the blister packaging industry and know more about materials. The materials commonly used in blister packaging plants are PP, PET, PVC, PE, etc.
1. PP material characteristics: the material is soft and tough, environmentally friendly, non-toxic, relatively high temperature resistant, poor plasticity, difficult to blister, lack of luster on the surface, showing a dull color
Sensory identification: This product is white and transparent. Compared with LDPE, it has higher transparency and has a sound when rubbed.
Combustion identification: when burning, the flame is yellow and blue, the smell is like petroleum, it melts and drips, and there is no black smoke when burning.
2. PET material characteristics: This material is environmentally friendly, with good hardness, strong transparency and bright surface.
Sensory identification: This product is white and transparent, feels hard, and makes a sound when rubbed. It looks like PP.
Combustion identification: there will be black smoke when burning, the flame will flash over, the surface of the material will be black carbonized after burning, the black carbonized matter after burning with fingers will be powdered.
3. PVC material characteristics: it is one of the most used materials for blister packaging, with moderate price, strong toughness, and good shapeability. If it encounters low temperature weather, it will become brittle and easy to break.
Sensory identification: The appearance is very similar to EVA but elastic.
Combustion identification: black smoke will be emitted when it burns, and it will go out when it is away from the fire. The burning surface is black, without melting and dripping.
4. PP+PET material characteristics: This material is a composite material, with a good surface, wear resistance and good plasticity.
Sensory identification: The appearance is similar to PP, the transparency is extremely high, and the sound is greater than PP when rubbed.
Combustion identification: there is black smoke when burning, the flame has a flashover phenomenon, and the burning surface is black and charred.
5. PE+PP copolymer: There are low-density, medium-density, high-density polyethylene, soft to the touch, this material is rarely used. Sensory identification: Compared with LDPE, the transparency of this product is much higher than that of LDPE, and the hand feel is no different from LDPE. The tear test is very similar to PP film, and the material is transparent and pure white.
Combustion identification: when this product burns, the flame is all yellow, melted and dripping, no black smoke, and the smell is like petroleum.
