Classifications

• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
  • A24B3/00—Preparing tobacco in the factory
  • A24B3/18—Other treatment of leaves, e.g. puffing, crimpling, cleaning
  • A24B3/182—Puffing

Definitions

• the invention relates to a process for improving the filling capacity of tobacco by treating the tobacco with gases under pressure and then heating after relaxation, in which the tobacco is filled with nitrogen and / or argon at working pressures up to 1000 bar and at a working temperature in the range from 0 to Treated 50 ° C and is subjected to a brief thermal after-treatment after relaxation.
• Such a method is e.g. known from DE-A-2 903 300; the tobacco is subjected to a high-pressure gas treatment once and a thermal aftertreatment in a further step.
• the high-pressure gas treatment causes the gas to be absorbed by the tobacco, the high final pressure, short pressure reduction times and humidification of the tobacco prior to the treatment to at least 20% moisture causing the absorption of a sufficiently large amount of gas in the tobacco.
• the enclosed gas expands due to the external supply of heat and generates an outward pressure and thus an expansion of the tobacco structure.
• the tobacco was preferably additionally moistened to a moisture of 25% H 2 O before the pressure treatment, while the thermal after-treatment was carried out either in drying cabinets or by means of microwave or infrared heating, with the tobacco drying to a desired level Final water content took place.
• the present invention therefore has the task of eliminating these deficiencies and improving the method according to DE-A 2 903 300 in order to carry out the increase in the filling capacity of the tobacco in a simpler and more energy-saving manner.
• the tobacco can optionally be provided with suitable flavors both before the high-pressure gas treatment and after the thermal steam aftertreatment, without a loss in filling capacity being observed.
• a very important advantage for the technical implementation of the method according to the invention is that the tobacco used with its normal humidity does not clump together when relaxing after the high-pressure gas treatment and can be processed further without further process steps, such as, for example, crushing the "block". In addition, there is no additional moistening as a further process step.
• Virginia tobacco was treated with nitrogen on a conventional installation as described in DE-A-2 903 300, the weight of the tobacco being 200 g each.
• the treatment was carried out at the pressures, tobacco moisture levels given in Table I below and at pressure reduction times of approximately 1.3 to 2 minutes.
• the tobacco treated in this way was then immediately subjected to a thermal aftertreatment lasting about one minute, in that the tobacco was once treated according to the invention with saturated steam at 100 ° C., and on the other hand, as a comparison, as usual with a microwave or in a drying cabinet.
• the tobacco present after the high-pressure gas treatment was worked out into a fleece immediately after decompression and this was carried out at a constant speed under a steam nozzle.
• the steam-treated samples were then dried to the desired humidity with hot air.
• the samples were taken at standard conditions from 21 ° C and a relative humidity of 60% conditioned for about 36 h.
• the filling power of the samples was determined with a Borgwaldt densimeter after adjustment of the equilibrium moisture.

Landscapes

• Manufacture Of Tobacco Products (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=6132370

Family Applications (2)

Family Applications After (1)

Country Status (29)

Families Citing this family (24)

Family Cites Families (5)

• 1981
  • 1981-05-15 DE DE3119330A patent/DE3119330C2/de not_active Expired
• 1982
  • 1982-04-26 ZA ZA822820A patent/ZA822820B/xx unknown
  • 1982-04-30 BR BR8202499A patent/BR8202499A/pt not_active IP Right Cessation
  • 1982-05-06 AT AT82103924T patent/ATE14827T1/de not_active IP Right Cessation
  • 1982-05-06 EP EP82103924A patent/EP0065228B1/de not_active Expired
  • 1982-05-08 EG EG262/82A patent/EG15731A/xx active
  • 1982-05-10 PH PH27258A patent/PH19043A/en unknown
  • 1982-05-11 YU YU993/82A patent/YU43264B/xx unknown
  • 1982-05-12 PT PT74887A patent/PT74887B/pt unknown
  • 1982-05-13 SU SU823436501A patent/SU1120917A3/ru active
  • 1982-05-13 CH CH2993/82A patent/CH654724A5/de not_active IP Right Cessation
  • 1982-05-13 AR AR289393A patent/AR226657A1/es active
  • 1982-05-13 UA UA3436501A patent/UA7215A1/uk unknown
  • 1982-05-14 IT IT21271/82A patent/IT1152173B/it active
  • 1982-05-14 DK DK218682A patent/DK156755C/da not_active IP Right Cessation
  • 1982-05-14 ES ES512193A patent/ES512193A0/es active Granted
  • 1982-05-14 AU AU83700/82A patent/AU544763B2/en not_active Expired
  • 1982-05-14 NL NLAANVRAGE8202006,A patent/NL188498C/xx not_active IP Right Cessation
  • 1982-05-14 FR FR8208426A patent/FR2505618B1/fr not_active Expired
  • 1982-05-14 GR GR68163A patent/GR76395B/el unknown
  • 1982-05-14 JP JP57082303A patent/JPS5933346B2/ja not_active Expired
  • 1982-05-14 GB GB8214171A patent/GB2098452B/en not_active Expired
  • 1982-05-14 DD DD82239875A patent/DD202387A5/de not_active IP Right Cessation
  • 1982-05-14 TR TR21396A patent/TR21396A/xx unknown
  • 1982-05-14 MX MX192702A patent/MX155918A/es unknown
  • 1982-05-14 BE BE0/208094A patent/BE893190A/fr not_active IP Right Cessation
  • 1982-05-14 US US06/378,390 patent/US4461310A/en not_active Expired - Lifetime
  • 1982-05-14 BG BG056663A patent/BG38484A3/xx unknown
  • 1982-05-14 EP EP82104212A patent/EP0065290A1/de not_active Withdrawn
• 1994
  • 1994-12-30 MD MD95-0181A patent/MD403C2/ru unknown

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