A method for making a reconstituted tobacco sheet using...

A - Human Necessities – 24 – B

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A24B 15/12 (2006.01) A24B 3/18 (2006.01)

Patent

CA 2313130

A process for improving smoke quality and mechanical properties of a cast reconstituted tobacco sheet is accomplished by adding tobacco materials to an aqueous solution containing ammonium salts and ammonium hydroxide. The resulting first tobacco slurry is then pressurized under steam pressure to at least 60 psi for a period of from about 1 to 5 minutes then depressurized rapidly to ambient. The depressurized tobacco is then formed into a second tobacco slurry. The resulting tobacco residue is then cast into a reconstituted tobacco sheet for further processing into smoking articles.

Procédé pour améliorer les propriétés mécaniques d'une feuille de tabac reconstituée moulée et sa qualité lorsqu'on la consomme. Ledit procédé consiste à ajouter des morceaux de tabac dans une solution aqueuse contenant des sels d'ammonium et de l'ammoniac ordinaire. La première boue de tabac résultante est ensuite pressurisée sous une pression de vapeur d'au moins 60 psi pendant environ 1 à 5 minutes, après quoi elle est dépressurisée rapidement jusqu'au retour la pression ambiante. Le tabac dépressurisé est ensuite traité de sorte qu'il forme une deuxième boue de tabac. Le résidu de tabac résultant est ensuite moulé de sorte qu'une feuille de tabac reconstituée soit formée, après quoi ladite feuille est traitée de manière que des articles à fumer soient produits.

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