IP Library › Granted Patent US 11,882,869
Granted Patent B2
US 11,882,869 · App. 16/965,749 · Granted Jan 30, 2024

Cigarette with outer wrapper

Inventors: Jung Seop Hwang (Daejeon, KR); Dong Kyun Ko (Sejong, KR); Jae Sung Noh (Cheonan-si, KR); Bong Su Cheong (Daejeon, KR); Sang Won Choi (Daejeon, KR)
Assignee: KT&G CORPORATION
A24D1/20A24D1/02A24D3/17D21H17/15D21H21/14D21H27/00
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Quick Facts
Patent No.
US 11,882,869
App. No.
16/965,749
Granted
Jan 30, 2024
Kind
B2
Abstract

A cigarette according to an embodiment may include a cigarette rod including an aerosol-generating material; a filter rod located at one end of the cigarette rod and including a first segment and a second segment; a front end plug located at the other end of the cigarette rod; and an outer wrapper wrapping the cigarette rod, the filter rod and the front end plug, wherein the outer wrapper has a basis weight of 57 g/m 2 to 63 g/m 2 and a thickness of 64 μm to 70 μm to increase the strength of the cigarette.

Claims (13)

1. A cigarette comprising:

a cigarette rod including an aerosol-generating material;

a filter rod located at one end of the cigarette rod and including a first segment and a second segment;

a front end plug located at another end of the cigarette rod; and

an outer wrapper wrapping the cigarette rod, the filter rod and the front end plug,

wherein the outer wrapper has a basis weight of 57 g/m 2 to 63 g/m 2 and a thickness of 64 μm to 70 μm to increase strength of the cigarette.

2. The cigarette of claim 1 , wherein the outer wrapper has a tensile strength of 8.0 kgf/15 mm to 11.0 kgf/15 mm.

3. The cigarette of claim 1 , further comprising at least one of a first wrapper wrapping the front end plug, a second wrapper wrapping the cigarette rod, a third wrapper wrapping the first segment, and a fourth wrapper wrapping the second segment,

wherein a basis weight of the second wrapper is lower than a basis weight of the outer wrapper.

4. The cigarette of claim 3 , wherein porosity of the second wrapper is higher than porosity of the outer wrapper.

5. The cigarette of claim 3 , wherein porosity of the second wrapper is 20000 cu to 40000 cu.

6. The cigarette of claim 3 , wherein a coating material is applied to at least one of an inner surface and an outer surface of the second wrapper such that a rate of heat transfer to the cigarette rod through the second wrapper is improved.

7. The cigarette of claim 6 , wherein the coating material includes at least one of sodium-citrate (Na-citrate) and potassium-citrate (K-citrate).

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 29, 2020
From: HWANG, JUNG SEOP; KO, DONG KYUN; NOH, JAE SUNG; CHEONG, BONG SU; CHOI, SANG WON
To: KT&G CORPORATION
Reel/Frame 053345/0271 →
Priority Claims (1)
KR 10-2018-0146475 · Nov 23, 2018 · national
Continuity (1)
Related Publication 20210030056A1 · Feb 4, 2021