With the gradual popularization of blister packaging boxes, more and more industries have changed from traditional carton packaging and plastic bag packaging to blister packaging boxes! In the current market, blister boxes are used in any industry: electronic digital, cosmetics, toys and food... Although many customers are using transparent blister packaging boxes, they are not very clear about the materials used to make transparent blister boxes. Generally, the blister industry can make transparent blister packaging boxes, and there are only two similar materials, that is, the twin brothers of pet and PVC. These two blister boxes made of different materials look like a mold printed from the appearance and hardness, which is difficult to distinguish from the naked eye. Now, Jiasheng Blister Factory will tell you how to distinguish these two points.

1、 Flammability

Pet: This is the simplest and direct method. Take a small piece and burn it with a lighter. What can ignite is PET material, and the burning part will not turn black or emit black smoke. Pet is also the most environmentally friendly material in blister materials and the best material for food blister packaging!

PVC: it is a non combustible material, and the part burned with a lighter will turn black and emit black smoke. PVC is not an environmental protection material, so it is not suitable for food packaging. PVC is mostly used for electronic transparent packaging.

2、 Hot pressing property

Hot pressing is somewhat related to the first point. What is hot pressing, that is, materials and materials or materials and paper are bonded together at high temperature. Because of the flammability of pet, it can not accept too high temperature, so PET material can not be hot pressed, while PVC can be hot pressed because it is incombustible.

With these two points, we have a general understanding of PVC and pet blister packaging boxes. We don't worry that suppliers use PVC as pet in order to be greedy for small and cheap!