Cigarette filter, process for producing the same, and cigarette

摘要

A cigarette filter is prepared by dispersing a cellulose acetate particle in a cellulose ester tow (10). The cellulose acetate particle has the following particle size: not less than 90% by weight of the cellulose acetate particle pass through a sieve having an aperture size of 1.7 mm and fail to pass through a sieve having an aperture size of 0.10 mm, and these sieves are in accordance with JIS Z8801-1 2006. The cigarette filter of the present invention may further contain a plasticizer (particularly, an acetin compound) in a ratio of 1 to 10 parts by weight relative to 100 parts by weight of the cellulose ester tow, and the cellulose acetate particle may be fixed to cellulose ester tow with the plasticizer. The cellulose ester tow may comprise a cellulose acetate tow. The cigarette filter selectively and efficiently removes a phenol compound (e.g. , phenol and cresol) while maintaining a palatable component (e.g., nicotine and tar).