Paper tube including flavored sheet and smoking article including the same

Patent metadata

Field	Value
Publication number	US-2024381928-A1
Application number	US-202218033714-A
Country	US
Kind code	A1
Filing date	Nov 17, 2022
Priority date	Nov 19, 2021
Publication date	Nov 21, 2024
Grant date	—

Abstract

The present disclosure relates to a paper tube including a flavored sheet and a smoking article including the same, and more particularly, relates to a paper tube for smoking articles which includes a flavored sheet, which includes a cellulose-based polymer, a plasticizer, and a flavoring material, and which is on an inner surface, an outer surface, or both of the paper tube, and to a smoking article including the same.

First claim

1 . A paper tube for smoking articles, the paper tube comprising:
a flavored sheet on an inner surface, an outer surface, or both of the paper tube, wherein the flavored sheet comprises a cellulose-based polymer, a plasticizer, and a flavoring material.

2 . The paper tube of claim 1 , wherein the cellulose-based polymer is in an amount of 20% by weight (wt %) to 60 wt % in the flavored sheet.

3 . The paper tube of claim 1 , wherein the plasticizer is in an amount of 1 wt % to 20 wt % in the flavored sheet.

4 . The paper tube of claim 1 , wherein the flavoring material is in an amount of 10 wt % to 50 wt % in the flavored sheet.

5 . The paper tube of claim 1 , wherein the cellulose comprises at least one selected from a group consisting of methyl cellulose, ethyl cellulose, carboxymethyl cellulose, carboxyethyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, hydroxyethylmethyl cellulose, and agar.

6 . The paper tube of claim 1 , wherein the plasticizer comprises at least one selected from a group consisting of propylene glycol, polyethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, glycerin, and sorbitol.

7 . The paper tube of claim 1 , wherein the paper tube has a resistance to draw of 0.1 mmH 2 O to 1.5 mmH 2 O per millimeter of a length.

8 . The paper tube of claim 1 , wherein the flavored sheet has a thickness of 1 mm or less.

9 . The paper tube of claim 1 , wherein the flavored sheet has a tensile strength of 1.0 kilogram-force (kgf)/15 mm or greater.

10 . The paper tube of claim 1 , wherein the paper tube has a circumference of 14 mm to 25 mm and a length of 5 mm or greater.

11 . The paper tube of claim 1 , wherein
the paper tube comprises:
a first layer comprising the flavored sheet; and
a second layer surrounding the first layer, and
a thickness ratio of the first layer to the second layer is in a range of 2.5:1 to 0.5:1.

12 . The paper tube of claim 1 , wherein
the paper tube comprises:
a first layer comprising the flavored sheet;
a second layer surrounding the first layer; and
a third layer comprising the flavored sheet, and
a thickness ratio of the first layer or the third layer to the second layer is in a range of 2.5:1 to 0.5:1.

13 . A smoking article comprising:
a filter portion comprising the paper tube of claim 1 .

14 . The smoking article of claim 13 , wherein the smoking article is a cigarette or an electronic cigarette, and is in a form of a cigarette.

15 . The smoking article of claim 13 , wherein the filter portion comprises:
a first filter; a second filter comprising the paper tube; and a third filter comprising a tube structure.

16 . The smoking article of claim 15 , wherein the first filter comprises a fibrous form, a filamentous form, or both, wherein the fibrous form and the filamentous form each comprise at least one of a polymer, paper, cellulose acetate, activated carbon, and carbon.

Assignees

• Kt & G Corp

Inventors

• Ahn Ki-Jin
• Kim Dong Hyun
• Kim Ick Joong
• Jung Kyung Bin
• Jeoung Eun Mi

Classifications

• A24D3/14

  of organic materials as additive (of ion exchange materials A24D3/12) · CPC title

• A24D3/10 Primary

  of cellulose or cellulose derivatives · CPC title

• A24D1/045

  with smoke filter means (A24D1/047 takes precedence) · CPC title

• A24D1/002

  with additives, e.g. for flavouring · CPC title

• A24D1/20

  Cigarettes specially adapted for simulated smoking devices · CPC title