Title: Tobacco filter materials and tobacco filter tip as produced by using the same
Application Number: 96119261 Application Date: 1996.10.19
Publication Number: 1151849 Publication Date: 1997.06.18
Approval Pub. Date: 2003.05.07 Granted Pub. Date: 2003.05.07
International Classifi-cation: A24D3/10
Applicant(s) Name: Daicel Chemical Industries, Ltd. Address:
Inventor(s) Name: Hiroyuki Matsumura;Tohru Shibata
Attorney & Agent: ZHANG YUANZHONG
Abstract:
    A tobacco filter is obtained by shaping a sheet material having a web structure and comprising (1) cellulose acetate or other cellulose ester short staple, and (2) a binder fiber selected from polysaccharides or their derivatives and biodegradable polymers, and having a binding property with respect to the short staple into a rod-form. The fiber (2) includes (2a) an esterified cellulose fiber, (2b) a cellulose fiber coated with a cellulose ester, (2c) a fibrillated cellulose ester fiber having a BET specific surface area of 0.5 to 4.5 m2/g, and (2d) a cellulose fiber at least a part of its surface has been water-solubilized. The sheet material may further comprise a wood pulp or other beaten pulps. The proportion of the fiber (1) relative to fiber (2) is such that the former/the latter equals about E,fra 30/70 EE to E,fra 98/2 EE (weight %).
Time: 7
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