| 摘要 |
Disclosed are tobacco smoke filtering materials for selectively removing deleterious material from tobacco smoke without at the same time removing desirable smoke vapors which contribute to aroma and taste. The filtering materials comprise a fibrous article, the fibers of which have a coating on the surfaces thereof comprising a compound of the formula <IMAGE> wherein R1 is the residue of a straight chain fatty acid having 8-22 carbon atoms and R2 is OH or <IMAGE> wherein Ac is an acetyl group.
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