Method of molding combustible heat source for smoking article, combustible heat source manufactured by the method, and smoking article including the same

Patent metadata

Field	Value
Publication number	US-2024271051-A1
Application number	US-202218565768-A
Country	US
Kind code	A1
Filing date	Nov 28, 2022
Priority date	Dec 23, 2021
Publication date	Aug 15, 2024
Grant date	—

Abstract

The present disclosure relates to a method of molding a combustible heat source and provides a method of molding a combustible heat source, the method including: step S1 of preparing a combustible heat source composition including a carbon powder, an organic binder, and an ignition accelerator, step S2 of treating glycerin or propylene glycol on the combustible heat source composition; and step S3 of compressing and molding the composition after the treatment, in which the compressing in step S3 is performed at a strength of 0.5 to 10 MPa.

First claim

1 . A method of molding a combustible heat source, the method comprising:
step S1 of preparing a combustible heat source composition comprising a carbon powder, an organic binder, and an ignition accelerator; step S2 of treating glycerin or propylene glycol on the combustible heat source composition; and step S3 of compressing and molding the composition after the treatment, wherein step S3 is performed at a pressure of P O , and the P O is 1.5 to 2 times greater than a compression strength P w in a case where moisture is treated.

2 . The method of claim 1 , wherein the heat source has a diameter of 7 to 8 millimeters (mm) and a length of 10 to 12 nanometers (nm).

3 . The method of claim 1 , wherein the P O is 0.5 to 10 megapascals (MPa).

4 . The method of claim 3 , wherein the P O is 1.5 to 3.0 MPa.

5 . The method of claim 1 , wherein the P w is 0.5 to 1.5 MPa.

6 . The method of claim 1 , wherein the oil is treated in an amount of 0.8 to 2 parts by weight with respect to 100 parts by weight of a solid content of the combustible heat source composition.

7 . A combustible heat source molded by the method of molding a combustible heat source according to claim 1 .

8 . The combustible heat source of claim 7 , wherein the heat source is ignited within 30 seconds, and combustion continues for 140 seconds or longer.

9 . A smoking article comprising the combustible heat source of claim 7 .

Assignees

• Kt & G Corp

Inventors

• Jeoung Eunmi

Classifications

• C10L2290/32

  Molding or moulds · CPC title

• C10L2290/30

  Pressing, compressing or compacting · CPC title

• C10L2270/08

  for small applications, such as tools, lamp oil, welding · CPC title

• C10L7/04

  alcohol · CPC title

• A24B15/165 Primary

  comprising as heat source a carbon fuel or an oxidized or thermally degraded carbonaceous fuel, e.g. carbohydrates, cellulosic material · CPC title