Importance

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Abstract

A filter element is disclosed made from a gathered paper web that may be crimped, embossed, and/or corrugated. In accordance with the present disclosure, the paper web is treated with at least two different additives. The first additive comprises amphiphilic molecules, having hydrophilic and hydrophobic ends such as a ketene dimer that has one or more branching groups. The second additive, on the other hand, may comprise a polymer component such as a polyalkylene glycol. The filter element may also be treated with a polyamine or an amino acid or salt thereof. In one embodiment, the filter element may be incorporated into the filter of a smoking article. The two additives together may improve smoke taste, reduce some smoke phenols, and reduce some smoke carbonyls.

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First Claim