US 12,290,097 B2
Smoking article comprising a tube filter and a method of manufacturing the same
Jin Chul Yang, Sejong (KR); Jong Yeol Kim, Sejong (KR); Ki Jin Ahn, Daejeon (KR); Bong Su Cheong, Daejeon (KR); and Hee Tae Jung, Daejeon (KR)
Assigned to KT&G CORPORATION, Daejeon (KR)
Appl. No. 17/431,369
Filed by KT&G CORPORATION, Daejeon (KR)
PCT Filed Nov. 27, 2020, PCT No. PCT/KR2020/017114
§ 371(c)(1), (2) Date Aug. 16, 2021,
PCT Pub. No. WO2021/125613, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 10-2019-0170232 (KR), filed on Dec. 18, 2019.
Prior Publication US 2022/0132913 A1, May 5, 2022
Int. Cl. A24D 3/02 (2006.01); A24C 5/01 (2020.01); A24C 5/47 (2006.01); A24D 1/00 (2020.01); A24D 1/04 (2006.01); A24D 1/20 (2020.01); A24D 3/04 (2006.01); A24D 3/08 (2006.01); A24D 3/10 (2006.01); A24D 3/14 (2006.01); A24D 3/17 (2020.01); A24D 3/18 (2006.01)
CPC A24D 3/025 (2013.01) [A24C 5/01 (2020.01); A24C 5/476 (2013.01); A24D 1/002 (2013.01); A24D 1/042 (2013.01); A24D 1/045 (2013.01); A24D 1/20 (2020.01); A24D 3/0254 (2013.01); A24D 3/0279 (2013.01); A24D 3/048 (2013.01); A24D 3/08 (2013.01); A24D 3/10 (2013.01); A24D 3/14 (2013.01); A24D 3/17 (2020.01); A24D 3/18 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method of manufacturing a smoking article comprising a tube filter, the method comprising:
preparing a smoking material portion, a first tube filter flavored by a first flavoring liquid, and a mouthpiece flavored by a second flavoring liquid; and
combining and packaging the smoking material portion, the first tube filter, and the mouthpiece with a wrapper,
wherein the preparing comprises:
spraying, by a steam spray nozzle, steam of 80° C. to 150° C. onto an external surface of a tube-shaped rod for the first tube filter; and
subsequently applying the first flavoring liquid inside the first tube filter through a hollow of the first tube filter by using a flavoring nozzle, and
wherein the flavoring nozzle and the steam spray nozzle are apart from each other by 180 mm to 350 mm in a longitudinal direction of the first tube filter.