Atibiotic cigarette package film and its method for making same

A technology for packaging films and cigarettes, which is applied in the directions of packaging cigarettes, transportation and packaging, types of packaging items, etc., can solve the problems of easy precipitation of heavy metal ions, poor compatibility of inorganic antibacterial agents, easy discoloration, etc., and achieves a simple preparation process and is suitable for The effect of mass production

Inactive Publication Date: 2006-07-12
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In plastic processing, inorganic antibacterial agents generally have problems such as poor compatibility, easy precipitation of heavy metal ions, and easy discoloration. The current application is still limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The preparation steps of the antibacterial cigarette packaging film of the present invention are mainly divided into two steps: the first step is to obtain nano-silver antibacterial masterbatch, react polypropylene with silver nitrate, reducing agent, dispersant, decolorizer and stabilizer, and add low molecular weight Liquid polypropylene, to obtain polypropylene-coated nano-silver, with a particle size of 1-20 nanometers. This polypropylene-coated nano-silver has good compatibility with polypropylene resin, and it is also beneficial to prevent nano-silver from agglomerating into group, thereby ensuring the compatibility of nano-silver and polypropylene resin. In the second step, the polypropylene-coated nano-silver is added to the polypropylene resin raw material at a mass percentage of 10-20%, mixed evenly, and biaxially stretched to form a nano-silver antibacterial smoke film.

[0020] The preparation method of polypropylene coated nano-silver dispersion liquid is a...

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PUM

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Abstract

The invention relates to an antibiotic cigarette packaging film which comprises: profax and nanometer silver which dissolves in the profax. Each component of the antibiotic cigarette packaging film is as following (by weight rate): 59-79úÑ polypropylene, 10-20úÑ antibiotic mother particle, 2.5úÑ releasing agent, 2.5úÑ antistatic agent, 5-15úÑ lubricating agent, 0.5úÑ reducing agent and 0.5úÑ stabilizing agent. It also relates to a method for preparing the antibiotic cigarette packaging film which has the following steps: mixing the silver nitrate solution and the reducing agent, the scattering agent, the color killing agent and the stabilizing agent, adding low molecule polypropylene to form polypropylene coated nanometer silver, mixing granulating the polypropylene coated nanometer silver and the profax raw material to form nanometer silver antibiotic mother particle or using the polypropylene which coats nanometer silver as acrylic polymer seed to obtain profax with nanometer silver as nanometer silver antibiotic mother particle, adding the nanometer silver antibiotic mother particle into the profax to form the antibiotic cigarette packaging film by biaxial tension.

Description

【Technical field】 [0001] The invention relates to a cigarette packaging film and a preparation method thereof, in particular to an antibacterial cigarette packaging film with remarkable bactericidal, antibacterial and mildew-proof properties and a preparation method thereof. 【Background technique】 [0002] Cigarette packaging film is referred to as cigarette film, usually a biaxially oriented polypropylene film (BOPP). Compared with ordinary packaging films, BOPP has a lower heat-sealing temperature, good barrier properties, high transparency and uniform thickness Features. Because BOPP film is easy to be adhered and grown by microorganisms such as various bacteria and molds, especially cigarettes are easy to absorb moisture and be polluted by harmful bacteria under a certain temperature and humidity, so the market demand for antibacterial cigarette film is huge. [0003] At present, the method of adding various antibacterial agents to the BOPP film is mainly used to prepar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K3/08C08J5/18B65D85/10
Inventor 杜磊李荣先陈丽琼
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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