High-temperature resistance wear-resistant BOPP film used for cigarettes, and preparation method thereof

Abstract

The invention relates to a high-temperature resistance wear-resistant BOPP film used for cigarettes, and a preparation method thereof. The high-temperature resistance wear-resistant BOPP film used for cigarettes is prepared via direct co-extrusion combination of three structures including an upper surface layer, a core layer, and a lower surface layer; the upper surface layer is mainly prepared from a polypropylene copolymer, the core layer is mainly prepared from a polypropylene homopolymer, and the lower surface layer is mainly prepared from the polypropylene copolymer; 100 weight parts of the upper surface layer comprises, by weight, 86 to 93 parts of copolymer polypropylene, 6 to 10 parts of a slipping agent master batch, and 1 to 4 parts of an antisticking agent master batch; the core layer is prepared from 71 to 83 parts of the homopolymer polypropylene, 15 to 25 parts of a stiffening agent master batch, and 2 to 4 parts of an electrostatic agent master batch; and the lower surface layer is prepared from 100 weight parts of copolymer polypropylene; the slipping agent master batch possesses an organic round ball structure, is capable of reducing upper surface layer friction factor and improving surface high temperature resistance. The high-temperature resistance wear-resistant BOPP film possesses wear resistance and high temperature resistance, and is capable of resisting whitening and wearing.

Description

technical field [0001] The invention relates to a BOPP film, in particular to a BOPP film for high-temperature-resistant and wear-resistant cigarettes and a preparation method thereof. The invention belongs to the technical field of cigarette packaging materials. Background technique [0002] BOPP cigarette films with poor abrasion resistance often have defects such as whitening and fogging after packaging. In order to cater to the psychology of consumers, major tobacco factories pay more attention to the packaging effect. Although the cigarette label paper and film used for packaging belong to cigarette accessories, the requirements are increasing. Therefore, the wear-resistant film has a broad market prospect. . [0003] At present, the industry only pays attention to the problem of wear resistance at room temperature. After careful study, the applicant finds that wear resistance should be divided into two situations: wear resistance at room temperature and wear resistan...

AI Technical Summary

Problems solved by technology

[0005] One of the purposes of the present invention is to provide a high temperature resistant and resistant BOPP film for abrasive cigarettes has the characteristics of wear resistance, high temperature resistance, and prevention of whitening and abrasion on the upper and bottom surfaces of the cigarette case during high temperature heat sealing

[0006] The second purpose of the present invention is to solve the problem that the wear-resistant BOPP cigarette film of the prior art will appear white and easy to wear on the upper and bottom surface of the cigarette case when it is heat-sealed at high temperature, and to provide a high-temperature-resistant and durable Preparation method of BOPP film for ground cigarette

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