Alternating patterns in cigarette wrapper, smoking article and method

Patent metadata

Field	Value
Publication number	US-10905154-B2
Application number	US-201213473007-A
Country	US
Kind code	B2
Filing date	May 16, 2012
Priority date	May 16, 2011
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

A cigarette wrapper includes transversely extending banded regions applied by a printing technique, such as gravure printing. The banded regions may be applied in a one or more application of a printing composition that may be an aqueous starch solution also containing an anti-wrinkling agent such as propylene glycol, and calcium carbonate. The pattern of banded regions may be bands or stripes and the like along and/or around the tobacco rod. The banded regions may be solid or contain any number of cross-web and/or longitudinal discontinuities. The pattern may be configured so that when a smoking article is placed on a substrate, at least two longitudinal locations along the length of the tobacco rod have film-forming compound located only on sides of the smoking article not in contact with the substrate.

First claim

What is claimed is:

1. A smoking article, comprising:
a quantity of tobacco;
a wrapper paper surrounding the quantity of tobacco and defining a tobacco rod having a first end and a second end;
the wrapper paper including a first pattern of add-on material having a width extending between the first and second ends of the tobacco rod and a second pattern of add-on material having a width extending between the first and second ends of the tobacco rod wherein the first pattern of add-on material is axially spaced from the second pattern of add-on material by a distance greater than the width of the first pattern of add-on material or the width of the second pattern of add-on material;
the add-on material of the first pattern of add-on material is identical to the add-on material of the second pattern of add-on material, each containing starch, chalk, and an anti-wrinkling agent;
wherein the first pattern of add-on material forms a first banded region of the smoking article having a first IP performance and the second pattern of add-on material forms a second banded region of the smoking article having a second IP performance wherein the first IP performance is different than the second IP performance, the first banded region is axially spaced from the second banded region along the length of the tobacco rod by about 12 to 40 mm such that an area between the first and second banded regions does not include any add-on material along the axial spacing thereof to allow free burn of the smoking article between the first and second banded regions and the first and second patterns of add-on material have different geometrical patterns.

2. The smoking article of claim 1 , wherein a filter is attached to the first end of the tobacco rod.

3. The smoking article of claim 1 , wherein the anti-wrinkling agent is propylene glycol.

4. The smoking article of claim 1 , wherein the add-on material of the first and second patterns of add-on material have been applied to the wrapper paper by a gravure printing step.

5. The smoking article of claim 1 , wherein the first banded region and/or the second banded region includes at least first and second zones of add-on material and a circumferentially extending discontinuity free of add-on material separating the first and second zones by about 1 to 2 mm.

6. The smoking article of claim 5 , wherein the first banded region and the second banded region each include the circumferentially extending discontinuity wherein the respective circumferentially extending discontinuities are spaced about 27 mm apart.

7. The smoking article of claim 1 , wherein the first banded region and/or the second banded region includes at least first, second, and third zones of add-on material and a first circumferentially extending discontinuity free of add-on material separating the first and second zones by about 1 to 2 mm, and a second circumferentially extending discontinuity free of add-on material separating the second and third zones by about 1 to 2 mm.

8. The smoking article of claim 1 , wherein the wrapper paper has a CORESTA permeability of about 60.

9. The smoking article of claim 1 , wherein:
(a) the first IP performance is 0% and the second IP performance is less than 25%;
(b) the first IP performance in combination with the second IP performance is less than 25%;
(c) the first IP performance is less than 25% and the second IP performance is less than 25%;
(d) the first IP performance is less than 15% and the second IP performance is less than 15%;
(e) the first IP performance is less than 10% and the second IP performance is less than 10%;
(f) the first IP performance is less than the second IP performance; or
(g) the second IP performance is less than the first IP performance.

10. The smoking article of claim 1 , wherein:
(a) the smoking article has an SE average value of less than 50%;
(b) the smoking article has an SE average value of less than 25%; or
(c) the smoking article has an SE average value of less than 10%.

11. The smoking article of claim 1 , wherein the first pattern of add-on material and the second pattern of add-on material are each formed of a single layer of add-on material.

12. The smoking article of claim 1 , wherein discrete portions of the first and/or second banded regions have differing thicknesses.

Assignees

• Sherwood Timothy S
• Smith Robert N
• Rose Marc W
• Murray Tyrone W
• Altria Client Services Llc

Inventors

• Sherwood Timothy S
• Smith Robert N
• Rose Marc W
• Murray Tyrone W

Classifications

• A24D1/025

  the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity · CPC title

• A24C5/005 Primary

  Treatment of cigarette paper · CPC title