<abstract xmlns="http://www.w3.org/1999/xhtml"><p> A rational definition for characterizing the capacity of a cigarette filter to selectively modify the chemical composition of mainstream smoke is presented. The definition is related to the concept of separation factor as defined in chemical engineering and applied in the description of various unit processes. A number of numerical values for a wide range of cigarette filters currently found in the world market place are presented. The relative independence of the selectivity as defined in this paper upon tobacco types is demonstrated. Using a fixed filter construction in terms of amount and type of cellulose acetate fiber and plasticizer content, selectivity values are presented as a function of cigarette length and relative proportion of the cigarette which is allotted to the filter. Further, it is shown that selectivity appears to increase with length for given filter construction parameters. A limited amount of data regarding selectivity for weak acid components of mainstream smoke and certain gas phase components is presented as a characterization of dual filters currently on the US market</p></abstract>

A rational definition for characterizing the capacity of a cigarette filter to selectively modify the chemical composition of mainstream smoke is presented. The definition is related to the concept of separation factor as defined in chemical engineering and applied in the description of various unit processes. A number of numerical values for a wide range of cigarette filters currently found in the world market place are presented. The relative independence of the selectivity as defined in this paper upon tobacco types is demonstrated. Using a fixed filter construction in terms of amount and type of cellulose acetate fiber and plasticizer content, selectivity values are presented as a function of cigarette length and relative proportion of the cigarette which is allotted to the filter. Further, it is shown that selectivity appears to increase with length for given filter construction parameters. A limited amount of data regarding selectivity for weak acid components of mainstream smoke and certain gas phase components is presented as a characterization of dual filters currently on the US market

A Dimensionless Measure of Filter Selectivity: Geometrical Factors in Cigaret Construction which Influence this Measure

Summit Research Laboratories, Celanese Corporation of America, Summit, N. ]., USA

Contributions to Tobacco & Nicotine Research

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

A rational definition for characterizing the capacity of a cigarette filter to selectively modify the chemical composition of mainstream smoke is presented....

A Dimensionless Measure of Filter Selectivity: Geometrical Factors in Cigaret Construction which Influence this Measure

Pubblicato online: 13 giu 2014

Pagine: 203 - 214

DOI: https://doi.org/10.2478/cttr-2013-0110

© Beiträge zur Tabakforschung International

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.