Packing packing has a variety of classification methods due to its different materials, wide application fields and various varieties. According to the geometry of packing, it can be divided into spherical packing, block packing, flake packing, fibrous packing and so on.

According to the material composition, packing packing can be divided into organic packing packing and inorganic packing packing, or mineral packing packing, plant packing packing and synthetic packing packing.

According to the chemical composition of packing

Generally speaking, the chemical composition of the filler in the filling modification determines the essence of the packing, especially when the material is given functionality, the chemical composition of the filler plays a decisive role. American scholars divide the chemical composition of packing materials into four categories: oxide, salt, elemental substance and organic matter.

Classified according to the geometry of packing

Particles are the form of packing. The morphology of the particles is not very regular, but the geometric morphology of different packing fillers are significantly different, and the particle morphology of different fillers has a significant impact on the performance of the product.

According to the function of packing packing, it can be divided into ordinary packing packing and functional packing packing. The former increases the volume or quantity of the product and reduces the cost of the product, while the latter improves the performance of the product or gives the product some new functions.