Have.

PE film is generally available in the following places:

1 layer (commonly PE perforated film): direct contact with the user's skin.

2 Forced diversion layer: laterally conduct liquid, increase absorption area, prevent concentrated absorption of liquid

3 role of the leak-proof layer: to prevent liquid penetration. (Not sure whether LDPE, LLDPE, mLLDPE belong to PE film)

Main material: cast film of LDPE, LLDPE, mLLDPE, PA and other materials, is a non-stretched, non-oriented flat extruded film produced by melt casting and quenching. Compared with blown film, it is characterized by high production speed, high output, and good transparency, gloss and uniformity of film. At the same time, since it is a flat film, the subsequent processes such as printing and lamination are extremely convenient. The multi-layer co-extruded cast film can be generally divided into three layers of heat seal layer, support layer and corona layer, and the single layer is selected in material selection. The film width can be individually selected to meet the requirements of each level, giving the film different functions and uses. Wherein the heat sealing layer is subjected to heat sealing processing, the melting point of the material is required to be low, the hot melting property is good, the heat sealing temperature is wide, and the sealing is easy; the supporting layer plays a supporting role on the film to increase the stiffness of the film; corona The layer is to be printed or metallized, and a moderate surface tension is required. The addition of additives should be strictly limited.