Preservative film production process

Abstract

The invention relates to a preservative film production process. The preservative film production process comprises a bottom plate, a supporting frame and a traction device, wherein the supporting frame is installed at the upper end of the bottom plate, the section of the supporting frame is of a U-shaped structure, and the traction device is installed in the supporting frame. The preservative film production process disclosed by the invention can solve the problems that a film in a molten state is likely to adhere to the surface of a guide roller due to the fact that the guide plate cannot berapidly cooled generally when the existing equipment cools and guides the preservative film, so that the prepared film is likely to damage, and more folds easily exist on the surface of the film whenthe existing equipment is used for winding the prepared film, and the gas in the film cannot be effectively exhausted, so that the wound film is easily broken and the subsequent use of the film is affected are solved.

Description

technical field [0001] The invention relates to the field of production and processing of plastic wrap, in particular to a production process of plastic wrap. Background technique [0002] Cling film is a kind of plastic packaging product, which is usually made of ethylene as the masterbatch through polymerization reaction. Cling film can be divided into three categories: the first is polyethylene, referred to as PE; the second is polyvinyl chloride, referred to as PVC ; The third is polyvinylidene chloride, referred to as PVDC. In daily life, people use more and more plastic wrap, and the things stored in the refrigerator usually need to be sealed with plastic wrap to prevent secondary pollution. [0003] At present, the existing plastic wrap usually has the following defects in the process of production and processing: 1. When the existing equipment cools and guides the plastic wrap, it usually cannot cool the guide plate quickly, resulting in a molten state The thin fil...

AI Technical Summary

Problems solved by technology

[0005] The present invention can solve the problem that the existing equipment cannot quickly cool down the guide plate when cooling and guiding the fresh-keeping film, which causes the film in the molten state to easily adhere to the surface of the guide roller, making the prepared film easy to Damage occurs, and when the existing equipment rolls the prepared film, there are more wrinkles on the surface of the film, and at the same time, it cannot effectively discharge the gas in the film completely, resulting in The film is prone to cracking, which affects the subsequent use of the film and other problems

Images