Flavor release material

• US 5,144,967 A
• Filed: 10/22/1990
• Issued: 09/08/1992
• Est. Priority Date: 10/22/1990
• Status: Expired due to Fees

• Current Assignee: Kimberly-Clark Corporation
• Original Assignee: Kimberly-Clark Corporation
• Inventors: Cartwright, William F., DiGrigoli, Carmen P., Kasbo, Loyd G.
• Primary Examiner(s): MILLIN, VINCENT A
• Application Number:
  US07/601,160
• Time in Patent Office: 687 Days
• Field of Search: 131/365, 131/369, 131/358, 131/359, 131/369, 131/374, 131/335, 131/342, 131/353, 131/359, 162/139, 162/158, 162/173
• US Class Current: 131/365
• CPC Class Codes: A24B 15/282 by indirect addition of the chemical substances, e.g. in the wrapper, in the case
• CPC Class Codes: A24D 1/02 with special covers

Abstract

A flavor release material and method for producing the same where the material contains a calculated amount of active surface agent and flavorant adsorbed onto the active surface agent. The flavor release material is capable of controllably releasing flavor and aroma when exposed to a predetermined elevated temperature.

Claims

1. A method of manufacturing a flavor release material comprising the steps of:

providing a fiber material having a moisture content selected to avoid mold formation or brittleness;

combining said fiber material with an active surface agent;

forming the material into a desired shape;

testing samples of the material for content of the active surface agent;

adjusting the level of active surface agent as necessary to maintain a content in the range of 0.1 to 40 percent by weight;

adding flavorant to the material;

testing samples of the material for the amount of flavorant added; and

adjusting the amount of flavorant added to maintain the level at or below the amount necessary to saturate the active surface agent present.

2. The method of claim 1 wherein the fiber material comprises cellulosic or synthetic material.

3. The method of claim 1 wherein the shape is a sheet.

4. The method of claim 1 wherein the active surface agent is selected from the group consisting of activated carbons, molecular sieves, and polymer microsponges.

5. The method of claim 3 wherein the formation of the sheet is by a wet laid process.

6. The method of claim 3 wherein the formation of the sheet is by a dry laid process.

7. The method of claim 1 wherein the active surface agent content is measured by the amount of adsorption of carbon tetrachloride (CCl₄).

8. The method of claim 1 wherein the flavorant comprises menthol, tobacco vapor, or other fragrances and flavors.

9. The method of claim 1 wherein the flavorant is added by means of a rotogravure printing procedure.

10. The method of claim 1 wherein the flavorant content is determined by gas chromatography.

11. A flavor release material manufactured in accordance with the method of claim 1.

12. A flavor release material manufactured in accordance with the method of claim 2.

13. A flavor release material manufactured in accordance with the method of claim 3.

14. A flavor release material manufactured in accordance with the method of claim 4.

15. A flavor release material manufactured in accordance with the method of claim 7.

16. A flavor release material manufactured in accordance with the method of claim 8.

17. A flavor release material manufactured in accordance with the method of claim 9.

18. A flavor release material manufactured in accordance with the method of claim 10.

19. A flavor release material comprised of fiber, active surface agent, and flavorant adsorbed in the active surface agent wherein the amount of the active surface agent is determined, the flavorant is then added, and the amount of flavorant actually adsorbed is determined

whereby flavorant is maintained at or below the amount necessary to saturate the active surface agent present and is controllably emitted from the material upon exposure to a constant predetermined elevated temperature.

20. The material of claim 19 wherein the fiber comprises cellulosic or synthetic material.

21. The material of claim 19 wherein the active surface agent is selected from the group consisting of activated carbons, molecular sieves, and polymer microsponges.

22. The material of claim 19 wherein the flavorant is menthol, tobacco vapor, or other fragrances and flavors.

23. The material of claim 19 wherein the amount of active surface agent is determined by the amount of adsorption of carbon tetrachloride (CCl₄).

24. The material of claim 19 wherein the flavorant is added by means of a rota gravure printing procedure.

25. The material of claim 19 wherein the amount of flavorant actually adsorbed is determined by means of gas chromatography.

26. The material of claim 19 wherein the active surface agent is in the range of 0.1-40% by weight.