Production technology of plastic film

Abstract

The invention discloses a production technology of a plastic film. The technology comprises the steps of (1) selecting raw materials; (2) feeding; (3) carrying out plasticizing extrusion on the materials; (4) blowing up and pulling; (5) carrying out wind ring cooling; and (6) reeling the film, and the like. The main process factors such as temperature, blowup ratio and traction ratio which have influence to the production of the film in the production process are selected. The technology is simple and reasonable, is capable of realizing an automatic production line, and is high in efficiency; the plastic film produced by the technology has the advantages of being good in appearance, free from fold, high in transparency, uniform in thickness, high in longitudinal and transverse tensile strength, etc.

Description

technical field [0001] The production process of plastic rubber that the present invention relates to, particularly relates to a kind of plastic film production process. Background technique [0002] Plastic film is a common daily necessities for people nowadays. Plastic film has the advantages of good transparency, good moisture resistance, excellent heat resistance, convenient use, and low price. It is widely used in various industries, but the plastic film currently on the market is mainly based on Polyethylene plastic film is mainly used, but the product will have problems such as wrinkles, poor transparency, uneven thickness, and many fish eyes in the film. The application number is CN02128406.7, which discloses a production process of plastic film. As the main raw material, the processing aid, biodegradation aid, dispersion aid, and photosensitizer are mixed in a certain proportion, and processed into a plastic film under certain conditions. The solution speed is fast...

AI Technical Summary

Problems solved by technology

[0002]Plastic film is a common daily necessities for people nowadays. Plastic film has the advantages of good transparency, good moisture resistance, excellent heat resistance, convenient use, and low price. It is widely used It is used in all walks of life, but the plastic film currently on the market is mainly polyethylene plastic film, but the product will have problems such as wrinkles, poor transparency, uneven thickness, and many fish eyes in the film. The application number is CN02128406.7 Disclosed is a production process of a plastic film, which uses biodegradable resin as the main raw material, mixes processing aids, biodegradation aids, dispersion aids, and photosensitizers in a certain proportion, and processes them into plastic films under certain conditions. Film, the plastic film can be degraded by microorganisms, and the degradation speed is faster under the condition of light, which eliminates the environmental pollution caused by the plastic film, but its production conditions are not clear, and it is not clear whether the equipment technology can meet the requirements. The application number is CN 201310550207.1 A production process of a plastic film is disclosed, which enhances its heat resistance, wear resistance and toughness on the basis of the performance of the original plastic film, but the process is complicated, the cost is high, and it is difficult to realize the automatic production line and improve the production efficiency