CPP thin film and production process thereof

Abstract

The invention discloses a CPP thin film and a production process thereof, wherein the production process specifically comprises the following steps: metering and proportioning 96 parts of polypropylene resin, 20 parts of a halogen-free flame retardant, 0.3 part of an anti-dripping agent, 0.5 part of a heat stabilizer, 0.4 part of an antioxidant and 5 parts of an aluminum foil filler; and putting 96 parts of polypropylene resin, 20 parts of the halogen-free flame retardant, 0.3 part of the anti-dripping agent, 0.5 part of the heat stabilizer, 0.4 part of the antioxidant and 5 parts of the aluminum foil filler into a high-speed stirrer for stirring and mixing, and conveying the mixed master batch obtained in the step 2 into a double-screw extruder by a feeding machine for melt extrusion granulation. According to the CPP thin film and the production process thereof, the phenomenon that mixed master batch is accumulated on the inner wall of a high-speed stirrer can be effectively avoided, meanwhile, the cleanliness of the interior of the high-speed stirrer can be improved, the working efficiency of CPP thin film preparation is improved, edge cutting and glue sealing can be conducted on the edge of the CPP thin film, and the attractiveness and stability of the CPP thin film can be improved.

Description

technical field [0001] The invention relates to the field of CPP films, in particular to a CPP film and a production process thereof. Background technique [0002] CPP film is cast polypropylene film, also known as unstretched polypropylene film, which can be divided into general CPP film, aluminized grade film and cooking grade CPP film according to different uses. This program specifically involves a kind of CPP film and its production craft. [0003] However, the existing CPP film has certain deficiencies in the preparation process to be improved. First, in the process of mixing, there is no scraping mechanism to scrape the inner wall of the high-speed mixer, and the inner wall of the high-speed mixer cannot be adhered. The mixed masterbatch is scraped off, the mixed masterbatch is easy to accumulate on the inner wall of the high-speed mixer, and the internal pile of the high-speed mixer is messy, and the work efficiency of CPP film preparation is not high; Trimming the...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of CPP film and its production process, solve the existing CPP film in the production process, in the mixing process, there is no scraping mechanism to scrape the material on the inner wall of the high-speed mixer, can not be mixed at high speed The mixed masterbatch adhered to the inner wall of the mixer is scraped off, and the mixed masterbatch is easy to accumulate on the inner wall of the high-speed mixer. Edge sealant, the edge of the CPP film is not trimmed, the burrs on the edge of the CPP film cannot be cut off, the edge is not sealed, and the aesthetics and stability of the CPP film are poor.