Cigarette Filter Comprising a Carbonaceous Fiber
AssigneeR. J. Reynolds Tobacco Company
InventorRonald Keith Hutchens
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Abstract
The invention provides a cigarette filter including at least one filter segment having one or more composite fiber structures imbedded therein, the composite fiber structure including a carrier fiber and an adsorbent fiber, the adsorbent fiber including an adsorbent material. The filter can include one or more segments of fibrous tow material, with the one or more composite fiber structures imbedded within the fibrous tow, the composite fiber structure including a carrier fiber and a carbonaceous fiber.
Claims18
A cigarette filter comprising at least one filter segment having one or more composite fiber structures imbedded therein, the composite fiber structure comprising a carrier fiber and an adsorbent fiber, the adsorbent fiber comprising an adsorbent material.
A cigarette filter comprising at least one filter segment of fibrous tow material having one or more composite fiber structures imbedded within the fibrous tow, the composite fiber structure comprising a carrier fiber and a carbonaceous fiber.
Dependencies are inferred from the claim text.