A process for treating tobacco

A - Human Necessities – 24 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A24B 3/18 (2006.01) C12N 9/10 (2006.01) C12N 15/82 (2006.01)

Patent

CA 2235267

Tobacco is treated to cause its expansion by a process which comprises the steps of subjecting it to a reduced pressure of not greater than 7 kPa, impregnating the cell structure of the tobacco with isopentane vapour at temperatures of 70 to 90°C and maintaining the tobacco in contact with the vapour at a pressure of at least 400 kPa for up to 30 minutes, evacuating the excess vapour, the pressure change being effected adiabatically, treating the impregnated tobacco with steam to expand the tobacco cell structure and then subjecting the expanded tobacco to vacuum reordering. Expansion levels achieved by the process are similar to and may be greater than those achieved using conventional expansion processes.

Cette invention concerne un procédé de traitement du tabac permettant d'obtenir son expansion, lequel procédé consiste à soumettre le tabac à une pression réduite ne dépassant pas 7 kPa, à imprégner la structure cellulaire du tabac d'une vapeur d'isopentane à une température comprise entre 70 et 90 DEG C, et à maintenir le tabac en contact avec cette vapeur pendant au moins 30 minutes et à une pression d'au moins 400 kPa. L'excédant de vapeur est ensuite évacué tandis que le changement de pression se fait de manière adiabatique. Le tabac imprégné est traité à la vapeur de sorte que sa structure cellulaire subisse une expansion, et le tabac ainsi obtenu est ensuite soumis à un réordonnancement sous vide. Les niveaux d'expansion que permet d'atteindre ce processus sont similaires, voire supérieurs, même, à ceux atteints à l'aide des procédés d'expansion classiques.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

A process for treating tobacco does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with A process for treating tobacco, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A process for treating tobacco will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1972094

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.