Paper tube for smoking articles with flavored sheet, and smoking article

Patent metadata

Field	Value
Publication number	US-12588701-B2
Application number	US-202218032480-A
Country	US
Kind code	B2
Filing date	Nov 17, 2022
Priority date	Nov 22, 2021
Publication date	Mar 31, 2026
Grant date	Mar 31, 2026

Abstract

The present disclosure relates to a paper tube for smoking articles with a flavored sheet, and a smoking article, and more particularly, relates to a paper tube for smoking articles which includes a flavored sheet including a cellulose-based polymer, a plasticizer, and a flavoring material, and to a smoking article including the same.

First claim

The invention claimed is:

1 . A smoking article comprising:
a filter portion comprising a paper tube, the paper tube comprising a flavored sheet, wherein the flavored sheet comprises a cellulose-based polymer, a plasticizer, and a flavoring material.

2 . The smoking article of claim 1 , wherein the smoking article is a cigarette or an electronic cigarette, and is in a form of a cigarette.

3 . The smoking article of claim 1 , wherein the filter portion comprises:
a first filter; a second filter comprising the paper tube; and a third filter comprising a tube structure.

4 . The smoking article of claim 3 , 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.

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

6 . The smoking article of claim 1 , wherein the plasticizer is in an amount of 1 wt % to 20 wt % in the flavored sheet.

7 . The smoking article of claim 1 , wherein the flavoring material is in an amount of 10 wt % to 50 wt % in the flavored sheet.

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

9 . The smoking article of claim 1 , wherein the plasticizer comprises at least one selected from the group consisting of propylene glycol, polyethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, glycerin, and sorbitol.

Assignees

• Kt & G Corp

Inventors

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

Classifications

• A24D3/163

  Carbon · CPC title

• A24D3/14

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

• A24D3/10

  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