Antibacterial cigarette packaging film and preparation method thereof

Patent Type: Invention Patent Inventor: Du Lei; Li Rongxian; Chen Liqiong Applicant: Institute of Shenzhen Tsinghua University Master Applicant Address: 518057, Nanshan District, Shenzhen City, Guangdong Province, Shenzhen Hi-Tech Industrial Park, South District Application No.4
Application Date: 2005.10.14
Auditing Announcement No.: 1800253
Auditing Announcement Date: 2006.07.12
Main classification number: C08L23/12 (2006.01) I
Classification No.: C08L23/12(2006.01)I; C08K3/08(2006.01)I; C08J5/18(2006.01)I; B65D85/10(2006.01)I
Category classification number:
Manual CD-ROM: D0628-1
Abstract : The invention relates to an antibacterial cigarette packaging film comprising a polypropylene resin and a polypropylene-coated nano silver dissolved in the polypropylene resin. The percentage by weight of the components of the antibacterial cigarette packaging film is 59-79% polypropylene, 10 -20% antibacterial masterbatch, 2.5% anti-blocking agent, 2.5% antistatic agent, 5-15% slip agent, 0.5% reducing agent, 0.5% stabilizer. The invention also relates to a preparation method of an antibacterial cigarette packaging film, comprising the steps of: mixing a silver nitrate solution with a reducing agent, a dispersant, a decolorizer and a stabilizer, and adding a low-molecular polypropylene to form a polypropylene-coated nano silver; Polypropylene coated nano silver and polypropylene resin raw materials are mixed and granulated to make nano silver antibacterial master batch, or polypropylene coated with nano silver is used as propylene polymerization seed polymerization to obtain nano silver-containing polypropylene resin as nano silver Antibacterial masterbatch; The nano silver antibacterial masterbatch is added to the polypropylene resin raw material, and biaxially stretched to form the nano silver antibacterial cigarette packaging film. The antibacterial cigarette packaging film can sterilize, inhibit bacteria and prevent mildew.
Sovereignty Item: 1. An antibacterial cigarette packaging film, characterized in that it comprises a polypropylene resin and polypropylene-coated nano silver dissolved in the polypropylene resin.
Agency: Beijing Beixin Zhicheng Intellectual Property Agency Co., Ltd. Agent: Zhang Weihua Database Name: Invention Patent Database

Reprinted from: Wanfang Data