Process for the expansion of tobacco

Details Process for the expansion of tobacco Process for the expansion of tobacco

1978-03-29

1980-11-25

Millin, V.

Tobacco

Cigar or cigarette making

Tobacco feeding

A24B 318

Patent

active

042352509

ABSTRACT:
In a process for the expansion of tobacco comprising the steps of: (1) contacting tobacco with carbon dioxide gas at a pressure of at least 250 psig for a time sufficient to impregnate the tobacco with the carbon dioxide gas to form a gaseous carbon dioxide-tobacco system, (2) releasing the pressure and (3) thereafter subjecting the carbon dioxide-treated tobacco to rapid heating conditions to remove the carbon dioxide and thereby expand the tobacco, the improvement comprising cooling the gaseous carbon dioxide and tobacco system in step (1) to a temperature close to the saturation temperature of carbon dioxide but not lower than -23.degree. C.

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