US 11,751,601 B2
Low ignition propensity cigarette paper and manufacture thereof
Michael H. Lee, Rogersville, TN (US)
Assigned to Altria Client Services LLC, Richmond, VA (US)
Filed by Altria Client Services LLC, Richmond, VA (US)
Filed on Dec. 30, 2020, as Appl. No. 17/137,910.
Application 17/137,910 is a continuation of application No. 16/284,219, filed on Feb. 25, 2019, granted, now 10,893,699.
Application 16/284,219 is a continuation of application No. 14/982,167, filed on Dec. 29, 2015, granted, now 10,212,967, issued on Feb. 26, 2019.
Claims priority of provisional application 62/097,300, filed on Dec. 29, 2014.
Prior Publication US 2021/0112851 A1, Apr. 22, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A24D 1/02 (2006.01); A24C 5/00 (2020.01)
CPC A24D 1/025 (2013.01) [A24C 5/005 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A method of making a wrapper for a smoking article, the method comprising:
supplying a base web; and
forming at least one transverse banded region of add-on material on the base web, the forming including
printing a plurality of first dots including a first add-on material on the base web, the first dots of the plurality of first dots defining at least one first zone on the base material, at least a portion of each first dot of the plurality of first dots touching a portion of another first dot of the plurality of first dots, and the first add-on material including starch; and
printing a plurality of second dots including a second add-ion material on the base web, the second dots of the plurality of second dots defining at least one second zone on the base material, the second dots of the plurality of second dots being discrete and discontinuous and hexagonal, the second add-on material including starch, the first dots printed in the first zone having larger average dimensions than the second dots printed in the second zone, and a density of the second dots being such that a second diffusivity of the second zone is greater than a first diffusivity of the first zone.