Which layer is better to add to the broken edges of the three-layer film blower?

Outer layer. According to the encyclopedia of three-layer film blowing machine, three-layer film blowing machine is divided into outer layer, middle layer and inner layer, the outer layer is used for crushing, the middle layer and inner layer are used for extrusion molding of raw materials, and the scraps of three-layer film blowing machine are preferably added with outer layer. The three-layer film blowing machine has high output, good product plasticization, low energy consumption and simple operation, which completely solves the problems of film lotus leaf and winding size and makes the product quality reach a new level.