CPC A24D 1/042 (2013.01) [A24D 1/18 (2013.01); A24D 1/02 (2013.01); A24D 3/063 (2013.01)] | 7 Claims |
1. A cigarette comprising:
a tobacco rod;
a supporting segment positioned at a downstream end of the tobacco rod;
a cooling segment positioned at a downstream end of the supporting segment; and
a mouthpiece positioned at a downstream end of the cooling segment,
wherein the cooling segment includes a plurality of air channels formed along a longitudinal direction of the cigarette, and porosity of the cooling segment is less than 50%,
wherein the cooling segment includes a bundle of fibers arranged along the longitudinal direction of the cigarette, thereby forming the plurality of air channels, and
wherein the bundle of fibers comprises at least one sub-bundle of fibers which include straight fibers of a polymer material arranged along the longitudinal direction of the cigarette; or
the bundle of fibers comprises at least one sub-bundle of fibers which include crimped fibers of a polymer material arranged along the longitudinal direction of the cigarette; or
the bundle of fibers is comprised of fibers made of a polymer material and includes at least one sub-bundle of straight fibers arranged along the longitudinal direction and at least one sub-bundle of crimped fibers arranged along the longitudinal direction.
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