The film produced by blow molding method is commonly known as blow molded film, abbreviated as blow molded film, and the process flow of blow molded film forming. Introduction to packaging and processing technology for new and old plastics: shaping of raw materials with one Euro but forming – film winding. Schematic diagram of blown film forming process: The production method of blown film is divided into three types based on the different blowing and pulling directions of the film tube: flat extrusion up blowing method, flat extrusion flat blowing method, and flat extrusion down blowing method. The three blowing film processes each have their own advantages and disadvantages. By comparing them, the production method can be selected based on product specifications, raw materials used, production conditions, quality requirements, and economic accounting.
Advantages and disadvantages of blow molding process comparison: 1. The shape of the bubble tube is stable. 1. The factory requires a relatively high flat extrusion blowing method. 2. The floor area is small. 2. It is not suitable for raw materials with low viscosity. 3. It is easy to produce. The bending diameter can be large or small. 1. The floor area is large. The flat extrusion blowing method. 2. The auxiliary machine structure is simple. 1. The film is easy to introduce and operate, and the thickness is uneven. 2. The weight of the film tube is sagging, and the film is not suitable for producing thin films. 1. It is not suitable for producing thin flat extrusion blowing methods. 2. It is suitable for raw materials with low viscosity. 3. The production line speed is high. 2. The feeding is not convenient. 2. The blowing and
