Wrapping materials for smoking articles

US6976493B2 · kind B2 · utility

Assignee

• R.J. REYNOLDS TOBACCO COMPANY · US

Inventors

• Paul Stuart Chapman · Winston-Salem, US
• Sara Sutton Williard · Winston-Salem, US
• Charles Ray Ashcraft · Victor, US
• James Ellis · Winston-Salem, US
• James Ray Hutchens · Walnut Cove, US
• Gregory Scott Pierce · Kernersville, US
• John Tomel · Mocksville, US
• Mark Powell · Winston-Salem, US

Key dates

• Filing date: Nov 25, 2002
• Grant date: Dec 20, 2005
• Expiry date: Mar 28, 2023

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A24D1/025
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

Smokable rods of cigarettes are manufactured using wrapping materials that incorporate at least one fibrous material (e.g., flax fibers, hardwood pulp fibers and/or softwood pulp fibers) at least one filler material (e.g., calcium carbonate in particulate form). The wrapping materials possess multi-layer coatings. The wrapping materials possess coatings in the form of series of spaced apart bands, each band possessing a series of layers. At least one of the coating layers can have a filler material dispersed or suspended within a film-forming material of that layer.