Method for manufacturing aerosol generating articles

Patent metadata

Field	Value
Publication number	US-12302940-B2
Application number	US-202118025293-A
Country	US
Kind code	B2
Filing date	Sep 17, 2021
Priority date	Sep 21, 2020
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

A method for continuously manufacturing aerosol generating articles includes: (i) providing a continuous web of an aerosol generating substrate; (ii) separating a continuous strip of aerosol generating substrate from the continuous web of aerosol generating substrate provided in step (i), the continuous strip having a substantially flat surface; (iii) applying at least one susceptor patch to the substantially flat surface of the continuous strip of aerosol generating substrate obtained by step (ii); (iv) cutting the continuous web of aerosol generating substrate to form a plurality of aerosol generating strips; and (v) combining the at least one susceptor patch and the continuous strip of aerosol generating substrate obtained by step (iii) with the plurality of aerosol generating strips obtained by step (iv) to form a continuous rod.

First claim

The invention claimed is:

1. A method for continuously manufacturing aerosol generating articles, the method comprising:
(i) providing a continuous web of an aerosol generating substrate;
(ii) separating a continuous strip of aerosol generating substrate from the continuous web of aerosol generating substrate provided in step (i), the continuous strip having a substantially flat surface;
(iii) applying at least one susceptor patch to the substantially flat surface of the continuous strip of aerosol generating substrate obtained by step (ii);
(iv) cutting the continuous web of aerosol generating substrate to form a plurality of aerosol generating strips; and
(v) combining the at least one susceptor patch and the continuous strip of aerosol generating substrate obtained by step (iii) with the plurality of aerosol generating strips obtained by step (iv) to form a continuous rod.

2. The method according to claim 1 , wherein step (ii) comprises separating the continuous strip of aerosol generating substrate from an edge of the continuous web of aerosol generating substrate.

3. The method according to claim 1 , wherein step (ii) comprises cutting the continuous web of aerosol generating substrate to separate the continuous strip of aerosol generating substrate therefrom.

4. The method according to claim 1 , wherein step (ii) is performed using a rotary cutter unit.

5. The method according to claim 1 , wherein step (iii) comprises adhering the at least one susceptor patch to the substantially flat surface of the continuous strip of aerosol generating substrate.

6. The method according to claim 1 , wherein the substantially flat surface of the continuous strip of aerosol generating substrate provided by step (ii) includes a centre line, and step (iii) comprises applying the at least one susceptor patch to the substantially flat surface substantially along the centre line.

7. The method according to claim 1 , wherein, after step (ii) and prior to step (iii), the continuous strip of aerosol generating substrate is transported away from the continuous web of aerosol generating substrate.

8. The method according to claim 1 , wherein step (iii) comprises consecutively applying a plurality of susceptor patches to the substantially flat surface of the continuous strip of aerosol generating substrate with a predefined and constant spacing between each successive susceptor patch.

9. The method according to claim 8 , wherein each of the plurality of susceptor patches has substantially the same dimensions.

10. The method according to claim 1 , wherein the method further comprises, prior to step (iii), providing a continuous web of susceptor material and continuously cutting the continuous web of susceptor material to form the susceptor patches.

11. The method according to claim 10 , wherein the step of continuously cutting the continuous web of susceptor material comprises uniformly cutting the continuous web of susceptor material at a predefined and constant spacing so that the susceptor patches have substantially the same length in the direction of travel of the continuous web of susceptor material.

12. The method according to claim 1 , wherein step (iv) is performed using a rotary cutter unit.

13. The method according to claim 12 , wherein the rotary cutter unit includes a first cutting drum having circumferentially extending first cutting formations and a second cutting drum having circumferentially extending second cutting formations, and wherein the first and second cutting formations cooperate to cut the continuous web of aerosol generating substrate to form the plurality of aerosol generating strips.

14. The method according to claim 13 , wherein the at least one susceptor patch has a length of between 5 mm and 50 mm and each of the plurality of aerosol generating strips has a width of between approximately 0.5 mm and 2.0 mm.

15. The method according to claim 1 , wherein the method further comprises:
(vi) cutting the continuous rod to form a plurality of individual aerosol generating articles each comprising at least one susceptor patch.

16. The method according to claim 14 , wherein the length of the at least one susceptor patch is between 10 mm and 30 mm and the width of each of the plurality of aerosol generating strips is approximately 1.0 mm.

Assignees

• Jt Int Sa

Inventors

• Wagner Marcus
• Schwanebeck Julia
• Stamer Martina
• Schmidt Marlo-Leander
• Seitz Felix

Classifications

• A24C5/1828

  by cutting tobacco sheet material · CPC title

• A24C5/01 Primary

  Making cigarettes for simulated smoking devices · CPC title

• H05B6/105

  using a susceptor · CPC title

• A24F40/465

  specially adapted for induction heating · CPC title

• A24C5/18

  Forming the rod · CPC title