Title: Spongy cylindrical mesh filter stick coated with cellulose acetate and making method thereof
Application Number: 96116286 Application Date: 1996.03.18
Publication Number: 1159901 Publication Date: 1997.09.24
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A24D3/04,A24D3/10
Applicant(s) Name: Ma Chongzi Address: 201101
Inventor(s) Name:
Attorney & Agent:
Abstract:
     A meshed cylindrical sponge rod coated with acetylcellulose used as tip filter of cigarette is made up through dipping the shaped cylindrical sponge rod in solution of acetylcellulose in acetone under 1-5 ats for high-pressure osmosis, centrifugal removal of excess solution, and baking at 55-80 deg.C for evaporating acetone out, and features better performance and low cost of production.
Time: 9
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