Tobacco smoke filter

Details Tobacco smoke filter Tobacco smoke filter

A - Human Necessities

24

D

A24D 3/06 (2006.01) A24D 3/10 (2006.01) A24D 3/14 (2006.01) A24D 3/16 (2006.01)

Patent

CA 2422036

A tobacco smoke filter a copper-containing porphyrin or an iron analog of C.I. Reactive Blue 21 dye. A method of making a first tobacco smoke filter segment, comprising the steps of, first, providing one or more than one substance; producing a mixture of cellulose fiber and the substance; heating the mixture for a sufficient time at one or more than one temperature sufficient to covalently link the substance to the cellulose fiber; and forming the cellulose fiber with covalently bound substance into the first tobacco smoke filter segment. The substance can be a copper-containing porphyrin or an iron analog of C.I. Reactive Blue 21 dye.

L'invention concerne un filtre à fumée de tabac contenant une porphyrine à base de cuivre ou un analogue de fer de colorant bleu réactif 21 C.I. De plus, l'invention concerne un procédé de fabrication d'un premier segment de filtre à fumée de tabac, consistant d'abord à fournir une ou plusieurs substances; à préparer ensuite un mélange à base de fibre cellulosique et de ladite substance; à chauffer suffisamment ce mélange à une ou plusieurs températures suffisantes pour lier de manière covalente la substance à la fibre cellulosique; et enfin, à former la fibre cellulosique avec la substance liée par covalence dans ledit segment de filtre à fumée de tabac. Cette substance peut être une porphorine à base de cuivre ou un analogue de fer de colorant bleu chimiquement actif 21 C.I..

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