Brown cigarette wrappers

Details Brown cigarette wrappers Brown cigarette wrappers

A - Human Necessities

24

D

31/1.16

A24D 1/18 (2006.01) A24D 1/02 (2006.01) D21H 27/16 (2006.01) D21H 17/02 (2006.01) D21H 17/66 (2006.01) D21H 21/28 (2006.01)

Patent

CA 1098687

Abstract of Invention The present invention relates to brown cigarette paper having reduced gas phase constituents during pyrolysis wherein the paper which has been stained with humic acid or salts thereof is further treated by washing with water in an amount effective to reduce the amount of water-soluble alkali metal salts present in the paper.

302076

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