Method for producing a bobbin comprising alkaloids containing material

Patent metadata

Field	Value
Publication number	US-11457658-B2
Application number	US-201816493876-A
Country	US
Kind code	B2
Filing date	Mar 28, 2018
Priority date	Mar 29, 2017
Publication date	Oct 4, 2022
Grant date	Oct 4, 2022

Abstract

The invention relates to a method for producing a bobbin comprising a plurality of wounds of a laminated sheet, the method comprising the steps of: •providing a continuous sheet of alkaloids containing material having a free surface; •providing a continuous sheet of a first protective material having a free surface; •adhering the free surface of the continuous sheet of the first protective material to the free surface of the continuous sheet of alkaloids containing material to form a continuous laminated sheet comprising at least one layer of alkaloids containing material and at least one layer of a first protective material, wherein said at least one layer of alkaloids containing material and said at least one layer of a first protective material define an adhesion surface between them; •feeding said laminated sheet to a rotatable center core; •rotating the center core so as to wind said continuous laminated sheet around it in such a way to form said bobbin comprising a plurality of wounds of a continuous laminated sheet comprising at least one layer of alkaloids containing material and at least one layer of a first protective material.

First claim

The invention claimed is:

1. A method for producing a bobbin comprising a plurality of windings of a laminated sheet, the method comprising the steps of:
providing a continuous sheet of alkaloids containing material having a free surface;
providing a continuous sheet of a first protective material having a free surface;
applying a release agent on the free surface of the continuous sheet of a first protective material;

adhering the free surface of the continuous sheet of the first protective material to the free surface of the continuous sheet of alkaloids containing material to form a continuous laminated sheet comprising at least one layer of alkaloids containing material and at least one layer of a first protective material, wherein said at least one layer of alkaloids containing material and said at least one layer of a first protective material define an adhesion surface between them;
feeding said laminated sheet to a rotatable center core; and
rotating the rotatable center core so as to wind said continuous laminated sheet around it in such a way to form said bobbin comprising a plurality of windings of a continuous laminated sheet comprising at least one layer of alkaloids containing material and at least one layer of a first protective material,
wherein the release agent is selected from the group consisting of glycerin, calcium, talc, cellulose, and tobacco powder.

2. The method according to claim 1 , wherein the continuous sheet of alkaloids containing material has a moisture content comprised between from about 7 percent to about 15 percent in total weight basis of the sheet.

3. The method according to claim 1 , wherein the continuous sheet of alkaloids containing material has a thickness comprised between about 100 micron and about 300 micron.

4. The method according to claim 1 , wherein the continuous sheet of a first protective material has a thickness comprised between about 5 micron and about 50 micron.

5. The method according to claim 1 , comprising passing the continuous sheet of alkaloids containing material and the continuous sheet of a first protective material through a pair of rollers in such a way to press the free surface of the continuous sheet of said first protective material onto the free surface of the continuous sheet of alkaloids containing material.

6. The method according to claim 1 , comprising the step of applying an outer layer of a second protective material outwardly to the plurality of windings.

7. The method according to claim 6 , wherein the outer layer of a second protective material is applied by wrapping at least one sheet of the second protective material outwardly to said plurality of windings.

Assignees

• Philip Morris Products Sa

Inventors

• Prestia Ivan
• Del Borrello Michele
• Klipfel Yorick

Classifications

• A24B15/14 Primary

  made of tobacco and a binding agent not derived from tobacco · CPC title

• B32B38/18

  Handling of layers or the laminate · CPC title

• A24B15/186

  by coating with a coating composition, encapsulation of tobacco particles (encapsulation of additives other than tobacco : A24B15/283) · CPC title

• B32B37/20

  involving the assembly of continuous webs only · CPC title

• B32B19/046

  of paper or cardboard · CPC title