Method for preparing black liquor and method for preparing flavor component-containing liquid

Patent metadata

Field	Value
Publication number	US-10851494-B2
Application number	US-201514750592-A
Country	US
Kind code	B2
Filing date	Jun 25, 2015
Priority date	Mar 21, 2013
Publication date	Dec 1, 2020
Grant date	Dec 1, 2020

Abstract

A method for preparing a black liquor according to the present invention comprises digesting a tobacco raw material under an alkaline condition to obtain the black liquor. Further, a method for preparing a flavor component-containing liquid according to the present invention comprises digesting a tobacco raw material under an alkaline condition, separating the obtained digesting product into a black liquor and a tobacco fiber, and desalinating the black liquor to obtain the flavor component-containing liquid.

First claim

The invention claimed is:

1. A method for preparing a tobacco filler, the method comprising:
digesting a tobacco raw material under an alkaline condition in a container into which oxygen or air has been injected under pressure;
separating the obtained digesting product into a black liquor and a tobacco fiber; and
desalinating the black liquor to obtain a flavor component-containing liquid; and
applying the flavor component-containing liquid to a tobacco fiber or a formed product of the tobacco fiber.

2. The method for preparing a tobacco filler according to claim 1 , wherein the tobacco fiber or the formed product of the tobacco fiber is a base sheet tobacco.

3. A tobacco filler obtained by the method according to claim 1 .

4. A cigarette comprising the tobacco filler according to claim 3 .

5. A tobacco product comprising the tobacco filler according to claim 3 .

6. A noncombustible-type tobacco product comprising the tobacco filler according to claim 3 .

7. A smokeless tobacco comprising the tobacco filler according to claim 3 .

8. The method for preparing a tobacco filler according to claim 1 , further comprising neutralizing the digesting product or the black liquor after the digesting or the separating.

9. The method for preparing a tobacco filler according to claim 1 , wherein the digesting is performed by using an alkaline solution of 0.01 N or more.

10. The method for preparing a tobacco filler according to claim 1 , wherein the digesting is performed by using an alkaline solution having a pH of 12 or more.

Assignees

• Japan Tobacco Inc

Inventors

• Hata Shigeru
• Gohara Yoshito
• Nagase Ryosuke
• Okada Takuya
• Akiyama Shintaro

Classifications

• D21C3/02 Primary

  with inorganic bases or alkaline reacting compounds, e.g. sulfate processes · CPC title

• D21C11/0007

  Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for (volatile compounds obtained by decomposition of spent liquors in order to regenerate them D21C11/125; compounds obtained by fractionating the liquors in order to regenerate them D21C11/0042) · CPC title

• A24B15/305

  of undetermined constitution characterised by their preparation · CPC title

• A24B15/18

  Treatment of tobacco products or tobacco substitutes · CPC title

• A24B13/00

  Tobacco for pipes, for cigars, e.g. cigar inserts, or for cigarettes; Chewing tobacco; Snuff (reconstituted tobacco products A24B3/14) · CPC title