Cigarette filter, process for producing the same, and cigarette

Abstract

The invention provides a cigarette filter, process for producing the same, and cigarette. A cigarette filter is prepared by dispersing a cellulose acetate particle in a cellulose ester tow. 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).

Description

technical field [0001] The present invention relates to cigarette filters for the selective and efficient removal of phenolic compounds, especially phenol, while maintaining palatable components such as nicotine or tar, methods of making said cigarette filters, and cigarettes having said Cigarettes with filters. Background technique [0002] Currently, with regard to the health effects of smoking, technologies for reducing harmful components in cigarette smoke are required in the field of cigarettes. Cigarette smoke contains various harmful components. Especially phenolic compounds such as phenol or cresol are harmful substances contained in smoke at relatively high concentrations, and it is desired to efficiently remove the phenolic compounds. In order to adsorb harmful substances, activated carbon is generally widely used. However, usually physical adsorption using activated carbon removes not only harmful substances but also pleasant components in cigarette smoke. In ...

AI Technical Summary

Problems solved by technology

[0011] However, since the main body of the filter contains wood pulp (cellulose), the filter has insufficient phenol removal and low filter hardness

Also, although filter stiffness can be improved by increasing the ratio of particulate cellulose ester to wood pulp, pressure drop also increases

Therefore, there is a limit in the weight gain of granular cellulose ester

Images