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
  • A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
• • 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
  • A24B3/12—Steaming, curing, or flavouring tobacco

Definitions

• the invention relates to a method for treating tobacco, in particular Burley tobacco, by applying Casing and subsequent thermal treatment.
• casings represents a common step in the processing of leaf tobacco before cutting
• the aim of casing treatment is to improve the Processing ability as well as the taste characteristics of the tobacco material.
• Common ingredients of casings are Humectants, e.g. Glycols or glycerin, sugars as well solid natural substances such as cocoa or liquorice. Height Viscosity and the solids content of casings complicate one desired, uniform penetration of the tobacco with the Casing components.
• To improve the tobacco the task of heated takes place Casings together with a moistening by water and Steam in aggregates called casing drums.
• Burley tobaccos generally have relatively high levels of Nitrogen compounds at the same time low sugar contents on. For this reason, can often only by applying zukker Anlagenn Casings in combination with a subsequent thermal Treatment can be achieved an acceptable smoky taste.
• Reaction products such as e.g. Pyrazines are formed, which contribute to the improvement of sensory quality.
• a so-called belt dryer with severalnic cooling zones used in the tobacco of about 30% initial moisture dried to about 5% moisture. To further Processing, especially for cutting, the tobacco must subsequently be moistened again to about 16% to 22%.
• US 5 755 238 describes a method for rapid drying, Cool and rewet with the help of one in several treatment zones subdivided drying unit and the rewet in a separate steam tunnel.
• the hot air temperature of the dryer is about 105 ° C to 115 ° C and the total cycle time about 60 seconds.
• US 4,004,594 discloses a method of conditioning Tobacco, in particular Burley tobacco, impregnating the Tobacco particles with casing, a thermal treatment for expelling of the nitrogen or nitrogen compounds and the Setting the desired moisture content provides.
• the treatment plant consists of a dosing unit, a casing drum, a preconditioning unit for treatment with steam and aggregates for heating, cooling and rewetting the tobacco.
• the tobacco humidities after the dosing unit amount to 14% to 20%, preferably 18%, after the drum casing 30% to 42%, preferably 32%, after preconditioning about 35%, after heating 4% to 7% and after rewetting about 18% to 22%.
• the Pre-conditioning unit is treated with saturated steam of 2.5 bar to 3.5 bar, resulting in a tobacco temperature of about 70 ° C, to improve the penetration of the casing in the To achieve tobacco leaf.
• US 3 402 479 describes a tunnel-like apparatus for Transport and treatment of nitrogen-rich tobacco with Zones for pre-drying, for heating the tobacco without loss of moisture through the use of a suitably conditioned medium and for cooling the material to be treated.
• the entry humidity of the tobacco material is 40% to 50%, the temperature of the medium after predrying approx. 100 ° C and the discharge moisture approx. 16% to 18%.
• the steaming is preferably carried out so that the Tobacco over a period of 0.1 minutes to 10 minutes in As intensive as possible contact with the treatment medium is brought.
• the ratio of the mass flow rate of steam to tobacco is preferably set in a range of 0.1 to 0.5.
• the treatment is in a so-called steam tunnel carried out.
• steam tunnel carried out.
• aggregates are for example of the companies Sagemüller GmbH, Bockhorn or HAUNI Maschinenbau AG, Hamburg available.
• the humidity of the changes Tobacco during steam treatment depending on the choice of process parameters as pressure of the steam and residence time (exposure time of the Steam) only by a few percentage points.
• the tobacco treated by the process according to the invention clearly Homogeneous moisture distribution as such, according to the conventional method was treated with a belt dryer.
• the invention treated Tobacco after steam treatment and cooling with medium volatile Aromastoffen acted in the form of a so-called topdressing which is preferably alcoholic.
• the tobacco alone or after mixing with other tobaccos without further moistening or drying steps fed to the cutting process.
• the so-called fluidized bed dryer (Example 1) represents the application of a conventional method and is based on the principle of the vibrating conveyor with holes in the bottom plate, flows through the material to be treated via the hot air.
• the input humidity (Entry moisture) of the leaf tobacco was uniform 22%.
• Table 1 shows the applied hot air temperatures, the corresponding residence times and the discharge humidities (ie tobacco humidities after treatment in the fluidized bed dryer) of the leaf tobacco.
• Parameter combinations fluidized bed dryer No. Hot air temperature (° C) Residence time (sec) Input humidity (%) Discharge moisture (%) 1 130 15 22 6 2 150 30 22 3 3 200 40 22 ⁇ 1
• the treatment unit used was a conventional steam tunnel with a vibrating conveyor in which hot steam (saturated steam) flowing out of bores in a bottom plate interacts with the leaf tobacco; In principle, there is atmospheric pressure (open system) in the steam tunnel. The pressure of the steam before feeding into the steam tunnel was uniformly about 7 bar and the mass ratio of tobacco to steam 0.2. Table 2 shows the applied parameter combinations.
• the tobacco temperature discharge and the discharge moisture are the tobacco temperature or the tobacco moisture immediately after the steam treatment. Parameter combinations steam tunnel No. 4 Tobacco temperature discharge (° C) 106 Residence time (min) 3 Input humidity (%) 18 Discharge moisture (%) 18 5 108 6 18 17 6 112 9 18 15
• the two tables 3 and 4 compare for each of the two basic tobaccos examined the results obtained according to the parameter combinations 1 to 3 or 4 to 6 described in Tables 1 and 2.

Landscapes

• Manufacture Of Tobacco Products (AREA)
• Breeding Of Plants And Reproduction By Means Of Culturing (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Publications (2)

Family

ID=7671586

Family Applications (1)

Country Status (25)

Families Citing this family (17)

Family Cites Families (13)

• 2001
  • 2001-01-24 DE DE10103123A patent/DE10103123A1/de not_active Withdrawn
  • 2001-06-15 CZ CZ20032263A patent/CZ297134B6/cs not_active IP Right Cessation
  • 2001-06-15 KR KR1020037009296A patent/KR100737116B1/ko active IP Right Grant
  • 2001-06-15 CA CA002433412A patent/CA2433412A1/en not_active Abandoned
  • 2001-06-15 AU AU2001285747A patent/AU2001285747B2/en not_active Expired
  • 2001-06-15 HU HU0302739A patent/HU228295B1/hu unknown
  • 2001-06-15 NZ NZ527489A patent/NZ527489A/en not_active IP Right Cessation
  • 2001-06-15 RU RU2003125857/12A patent/RU2242147C1/ru active
  • 2001-06-15 JP JP2002558832A patent/JP3964789B2/ja not_active Expired - Fee Related
  • 2001-06-15 CN CNB018222315A patent/CN1192725C/zh not_active Expired - Lifetime
  • 2001-06-15 PL PL01365043A patent/PL193410B1/pl unknown
  • 2001-06-15 UA UA2003087878A patent/UA73842C2/uk unknown
  • 2001-06-15 AT AT01964985T patent/ATE282333T1/de active
  • 2001-06-15 DE DE50104569T patent/DE50104569D1/de not_active Expired - Lifetime
  • 2001-06-15 US US10/466,843 patent/US7320326B2/en not_active Expired - Lifetime
  • 2001-06-15 EP EP01964985A patent/EP1353572B1/de not_active Expired - Lifetime
  • 2001-06-15 ES ES01964985T patent/ES2231542T3/es not_active Expired - Lifetime
  • 2001-06-15 SK SK1065-2003A patent/SK286542B6/sk not_active IP Right Cessation
  • 2001-06-15 SI SI200130277T patent/SI1353572T1/xx unknown
  • 2001-06-15 WO PCT/EP2001/006776 patent/WO2002058490A1/de active IP Right Grant
• 2002
  • 2002-01-16 TW TW091100570A patent/TWI243650B/zh not_active IP Right Cessation
  • 2002-01-22 MY MYPI20020242A patent/MY128741A/en unknown
  • 2002-01-23 AR ARP020100223A patent/AR032513A1/es not_active Application Discontinuation
• 2003
  • 2003-07-03 MA MA27224A patent/MA26151A1/fr unknown
  • 2003-08-22 BG BG108126A patent/BG65441B1/bg unknown
• 2004
  • 2004-09-20 HK HK04107237A patent/HK1064261A1/xx not_active IP Right Cessation

Also Published As

Similar Documents

Legal Events