Paper sheet filter element for a smoking article, and associated method
AssigneeR.J. Reynolds Tobacco Company
InventorsBalager Ademe, Paul Stuart Chapman, Wesley Steven Jones
Life of this patent
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Abstract
A filter element for use in a smoking article includes a filter material comprised of paper sheet having a crimped three-dimensional structure. Polyethylene glycol, triethyl citrate, or triacetin is interacted with the filter material to increase the selective removal of semi-volatile compounds from mainstream smoke being drawn through the filter element, over the filter material alone. An associated method of making a filter element for use in a smoking article is also provided.
Claims11
1-23. (canceled)
An apparatus for forming a filter element for use in a smoking article, comprising:
- a crimping unit configured to crimp a filter material comprised of a reconstituted tobacco paper sheet having in a crimping process to form the reconstituted tobacco paper sheet into a crimped three-dimensional structure;
- and
- an additive dispensing unit associated with the crimping unit and configured to apply polyethylene glycol, triethyl citrate, or triacetin to the filter material during the crimping process, to increase the selective removal of semi-volatile compounds from mainstream smoke being drawn through the filter element, over the filter material alone.
Dependencies are inferred from the claim text.