公开(公告)号：US20240407428A1

公开(公告)日：2024-12-12

申请号：US18811026

申请日：2024-08-21

Applicant: Altria Client Services LLC

Inventor： Timothy S. SHERWOOD ,  Robert KIKKERT ,  Robert SMITH ,  Ali A. ROSTAMI ,  Georgios KARLES

IPC: A24D1/02

Abstract: A wrapper of a smoking article comprising a base web and banded regions comprising a leading edge, a trailing edge and a plurality of add-on material-free openings between said leading edge and said trailing edge. The add-on material-free openings establish a predetermined, nominal opened-area within said banded regions to control diffusivity. The add-on material can be applied by a gravure roller comprising a surface region with cells, cell-free areas and a chevron shape.

公开(公告)号：US20210298349A1

公开(公告)日：2021-09-30

申请号：US17346628

申请日：2021-06-14

Applicant: Altria Client Services LLC

Inventor： Marc ROSE ,  Timothy S. SHERWOOD ,  Robert N. SMITH

IPC: A24D1/02

Abstract: A wrapper for a smoking article has a base web and a plurality of crenellated bands, each having a diffusivity value in the range of 0 to about 0.2 cm/sec. The add-on material can be applied by gravure printing in a single pass in a chevron pattern such that an apex of the element is co-linear with substantially symmetrically spaced points on a trailing, outer edge of an adjacent chevron element. Testing elements may be simultaneously printed with the add-on material to monitor diffusivity and/or presence of add-on material.