Tobacco smoke filter
AssigneeEssentra Filter Products Development Co. Pte. Ltd.
InventorsJames D. Reed, Bennett C. Ward
Life of this patent
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Abstract
A tip for a smoking article such as a cigar is disclosed. The tip comprises a longitudinally extending element comprising a plurality of bicomponent fibers which define at least one channel extending longitudinally of the element.
Claims20
A tip for a smoking article, the tip comprising a longitudinally extending element comprising a plurality of bicomponent fibres which define at least one channel extending longitudinally of the element, wherein each of the at least one channel extends along the full length of the element, wherein the plurality of bicomponent fibres have a bonded fibre density of 0.20 to 0.44 g/cc, and wherein the longitudinally extending element is smoke impermeable.
A tip for a smoking article, the tip comprising a wrapper engaged around a longitudinally extending element comprising a plurality of bicomponent fibres which define at least one channel extending longitudinally of the element;
- wherein at least one end of the wrapper extends beyond the end of the element around which the wrapper is engaged, to define a cavity at the end of the tip, wherein each of the at least one channel extends along a full length of the element, and wherein the plurality of bicomponent fibres have a bonded fibre density of 0.20 to 0.44 g/cc, and wherein the longitudinally extending element is smoke impermeable.
A tobacco smoke filter or filter element comprising:
- an upstream filter element including a tobacco smoke filtering material;
- and a downstream tip comprising a longitudinally extending element comprising a plurality of bicomponent fibres which define at least one channel extending longitudinally of the element, wherein each of the at least one channel extends along the full length of the longitudinally extending element of the downstream tip, and wherein the plurality of bicomponent fibres have a bonded fibre density of 0.20 to 0.44 g/cc.
Dependencies are inferred from the claim text.