METHOD FOR THE PRODUCTION OF HOMOGENIZED TOBACCO MATERIAL

• US 20170273346A1
• Filed: 09/09/2015
• Published: 09/28/2017
• Est. Priority Date: 09/30/2014
• Status: Active Grant

• Current Assignee: Philip Morris Products SA (Philip Morris Limited)
• Original Assignee: Philip Morris Products SA (Philip Morris Limited)
• Inventors: Klipfel, Yorick, Pijnenburg, Johannes Petrus Maria, Doyle, Michael Elliott, Manzur Bedoya, Juan David, Rausis, Pascal
• Granted Patent: US 10,420,365 B2
• Time in Patent Office: Days
• CPC Class Codes: A24B 15/14 made of tobacco and a binding agent not derived from tobacco
• CPC Class Codes: A24B 15/28 by chemical substances
• CPC Class Codes: A24B 3/08 Blending tobacco
• CPC Class Codes: A24B 3/14 Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products delustering A24C1/40
• CPC Class Codes: A24B 3/18 Other treatment of leaves, e.g. puffing, crimpling, cleaning
• CPC Class Codes: A24C 5/01 Making cigarettes for simulated smoking devices

Abstract

The present invention relates to method for production of a slurry for homogenized tobacco material, said method comprising: —Selecting tobacco of one or more tobacco types; —Coarse grinding said tobacco; —Blending said tobacco of one or more tobacco types; and —Fine grinding said tobacco of one or more tobacco types.

Claims

1. A method for production of homogenized tobacco material, said method comprising:

selecting tobacco of one or more tobacco types;

coarse grinding the tobacco;

blending the tobacco of one or more tobacco types; and

fine grinding the tobacco of one or more tobacco types.

2. Method according to claim 1, wherein the step of fine grinding the tobacco comprises:

fine grinding said tobacco up to a tobacco powder having a mean size between about 0.03 millimetres and about 0.12 millimetres.

3. Method according to claim 1 wherein the coarse grinding comprises:

coarse grinding tobacco leaves to obtain tobacco particles of a mean size between about 0.25 millimetres and about 2.0 millimetres.

4. Method according to claim 1, wherein the step of coarse grinding is performed before the step of blending.

5. Method according to claim 1, wherein, before the step of coarse grinding, it comprises:

shredding the tobacco leaves to obtain tobacco strips having a mean size between about 2 millimetres and about 100 millimetres.

6. Method according to claim 1, wherein the step of selecting tobacco of one or more tobacco types further comprises the step of selecting:

at least about 30 percent of bright tobacco in dry weight basis of total amount of tobacco in the tobacco blend;

between about 0 percent and about 40 percent of dark tobacco in dry weight basis of total amount of tobacco in the tobacco blend; and

between about 0 percent and about 40 percent of aromatic tobacco in dry weight basis of total amount of tobacco in the tobacco blend.

7. Method according to claim 1, further comprising the step of:

adding a binder to the blend of different tobacco types in an amount comprised between about 1 percent and about 5 percent in dry weight basis of the homogenized tobacco material.

8. Method according to claim 1, further comprising the step of:

adding an aerosol-former to the blend of different tobacco types in an amount comprised between about 5 percent and about 30 percent in dry weight basis of the homogenized tobacco material.

9. Method according to claim 7, further comprising the step of:

Mixing the binder and the aerosol-former before adding said binder and said aerosol-former to said blend of different tobacco types.

10. Method according to claim 1, wherein the tobacco blend is comprised in an amount between about 20 percent and about 93 percent in dry weight basis of the homogenized tobacco material.

11. Method according to claim 1, further comprising the step of:

adding a cellulose pulp to the blend of tobacco powder in an amount between about 1 and about 3 percent in dry weight basis of the homogenized tobacco material.

12. Method according to claim 1, comprising:

forming a slurry including said blend of tobacco powder; and

casting a continuous web of the slurry.

13. Method according to claim 12, wherein the moisture of said web at casting is comprised between about 60 percent and 80 percent of the total weight of the web.

14. Method according to claim 12, further comprising the step of:

drying the cast web;

winding the cast web;

wherein the moisture of said cast web at winding is between about 7 percent and about 15 percent of the total weight of the cast web.

15. Aerosol-generating article, comprising a portion of homogenized tobacco material realized according to claim 1.

16. Method according to claim 2 wherein the coarse grinding comprises:

coarse grinding tobacco leaves to obtain tobacco particles of a mean size between about 0.25 millimetres and about 2.0 millimetres.

17. Method according to claim 7, further comprising the step of:

adding an aerosol-former to the blend of different tobacco types in an amount comprised between about 5 percent and about 30 percent in dry weight basis of the homogenized tobacco material.

18. Method according to claim 8, further comprising the step of:

Mixing the binder and the aerosol-former before adding said binder and said aerosol-former to said blend of different tobacco types.

19. Method according to claim 13, further comprising the step of:

drying the cast web;

winding the cast web;

wherein the moisture of said cast web at winding is between about 7 percent and about 15 percent of the total weight of the cast web.

20. Aerosol-generating article, comprising a portion of homogenized tobacco material realized according to claim 14.