US3773055A - Microwave treatment of cigarettes on a making machine - Google Patents

Microwave treatment of cigarettes on a making machine Download PDF

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Publication number
US3773055A
US3773055A US00244785A US3773055DA US3773055A US 3773055 A US3773055 A US 3773055A US 00244785 A US00244785 A US 00244785A US 3773055D A US3773055D A US 3773055DA US 3773055 A US3773055 A US 3773055A
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US
United States
Prior art keywords
tobacco
cigarette
rod
microwave energy
cigarettes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00244785A
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English (en)
Inventor
G Stungis
S Merker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brown and Williamson Holdings Inc
Original Assignee
Brown and Williamson Tobacco Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brown and Williamson Tobacco Corp filed Critical Brown and Williamson Tobacco Corp
Application granted granted Critical
Publication of US3773055A publication Critical patent/US3773055A/en
Anticipated expiration legal-status Critical
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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14—Machines of the continuous-rod type
    • A24C5/18—Forming the rod
    • A24C5/1864—Conditioning means, e.g. drying
    • 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
    • A24B3/187—Puffing by electrical treatment

Definitions

  • a cigarette rod or finished cigarette is filled with less tobacco than necessary to completely fill the wrapper and, in addition, the moisture content of the tobacco is adjusted to an appropriate level above normal making moistures.
  • the cigarette rod is then irradiated with microwave energy which causes the tobacco to expand and dry, producing a cigarette of proper firmness and tobacco moisture level.
  • FIGURE is a diagrammatic view of a continuous rod cogarrette making machine having incorporated therein a source of microwave energy according to the teachings of the present invention.
  • a conventional continuous rod cigarette making machine is partially shown in the Figure.
  • This machine essentially includes the tobacco feed designated generally by the numeral 10 and cigarette maker designated generally by the numeral 12.
  • the principal components of the cigarette maker 12 are comprised of a rod folder tongue 14, rod former 16, a cigarette rod paster 18, a rod sealer 20, a cut-off device 22, and a cigarrette catcher or collector 24 (illustrated schematically with phantom lines).
  • any one of the standard continuous rod cigarette forming machines can be employed in practicing this invention, as for example, the Molins Mark VI or Mark VIII manufactured by Molins Machine Co.
  • the tobacco feed 10 showers cut tobacco continuously onto a traveling tape 26, which delivers the showered tobacoo to the traveling paper web 32.
  • the paper web 28 is fed from a reel or roll 30 and is suitably guided through the rod folder tongue 14, the rod paster 18 which applies a strip of paste to the lap edge of the cigarette rod paper, the rod former 16 and the rod sealer 20, by a continuously moving folding belt 32 driven by the drum 34. In passing, it is this area of the cigarette maker 12 that is referred to in the industry as the garniture.
  • Drum 34 is continuously driven and takes its drive off the motor (not shown) for the entire cigarette making machine.
  • this invention contemplates feeding less than the required amount of tobacco to completely fill the cigarette rod 36. Towards this end, from 1 percent to 9 percent reductions are made from normal production values of tobacco density of the continuous rod. Similarly, the moisture content of the tobacco should be adjusted to an appropriate level 14 percent to 22 percent, as compared to normal making moistures, which is about 13 percent.
  • the continuous rod 36 or, as in a contemplated alternative embodiment, the individual cigarettes 40 are then introduced into a region occupied by an intense microwave field such as within a wave guide 44 connected to a remote microwave source 42, which produces an expansion of the tobacco materials. In this manner, the apparatus and process of this invention gives rise to an increase in the filling factor and allows moisture control at the maker. These conditions also tend to increase the firmness of the cigarette and thereby eliminate to a large extent the production of loose ends.
  • the microwave source 42 may be any one of several available commercial units capable of generating a high frequency fluid in the ISM bands of the microwave region, i.e., 915 and 2,450 megahertz. Of course, it is understood that the reions are limited only by restrictions imposed by the FCC. In actual practice, the microwaves penetrate the tobacco within wrapper 28. There is an intensive development of heat causing selective drying of the tobacco and control of the moisture content at the maker. The tobacco is expanded or puffed when exposed to the microwave energy generated by unit 42. The rate and degree of puffing depends on the amount of energy to which the tobacco is exposed.
  • This is a function of the power input to the microwave source 42, the length of time the tobacco is exposed to this source which, in turn, is dependent upon the rate of travel of the rod 36, the frequency or wave length of the microwaves generated and the moisture content of the tobacco.
  • the time of exposure of 5 a unit length of rod 36 to the microwave energy may be shorter.
  • longer periods of exposure would be necessary when using a less powerful microwave source.
  • the microwave source 42 may assume the form of a magnetron capable of generating very high frequencies and radiation efficiency in continuous operation while having relatively long working life.
  • magnetrons of this type There are many commercial sources for magnetrons of this type.
  • the method of treating tobacco within a wrapper to obtain an increase in fill factor while controlling moisture of cigarettes directly on a making machine during production comprising:
  • a cigarette making machine including a tobacco feeder, a cigarette paper feeder, means for discharging a predetermined amount of the tobacco on the web of the cigarette paper, means for wrapping the paper about the tobacco thereon to form a continuous length of cigarette rods and means for cutting the rod into individual length cigarettes, the improvement comprising:

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Manufacture Of Tobacco Products (AREA)
US00244785A 1972-04-17 1972-04-17 Microwave treatment of cigarettes on a making machine Expired - Lifetime US3773055A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24478572A 1972-04-17 1972-04-17

Publications (1)

Publication Number Publication Date
US3773055A true US3773055A (en) 1973-11-20

Family

ID=22924100

Family Applications (1)

Application Number Title Priority Date Filing Date
US00244785A Expired - Lifetime US3773055A (en) 1972-04-17 1972-04-17 Microwave treatment of cigarettes on a making machine

Country Status (6)

Country Link
US (1) US3773055A (it)
CA (1) CA975647A (it)
DE (1) DE2319259A1 (it)
FR (1) FR2181325A5 (it)
GB (1) GB1382774A (it)
IT (1) IT980202B (it)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4936920A (en) * 1988-03-09 1990-06-26 Philip Morris Incorporated High void volume/enhanced firmness tobacco rod and method of processing tobacco
US4962773A (en) * 1987-08-13 1990-10-16 R. J. Reynolds Tobacco Company Process for the manufacture tobacco rods containing expanded tobacco material
US4966170A (en) * 1984-08-03 1990-10-30 Philip Morris Incorporated Tobacco processing
US5012823A (en) * 1984-08-03 1991-05-07 Philip Morris Incorporated Tobacco processing
US5533528A (en) * 1992-12-31 1996-07-09 Philip Morris Incorporated Method and apparatus for elevating tobacco temperature
US5803081A (en) * 1996-06-28 1998-09-08 Regent Court Technologies Tobacco and related products
WO1998058555A1 (en) 1997-06-20 1998-12-30 Regent Court Technologies Method of treating tobacco to reduce nitrosamine content, and products produced thereby
US6135121A (en) * 1996-06-28 2000-10-24 Regent Court Technologies Tobacco products having reduced nitrosamine content
US6202649B1 (en) 1996-12-02 2001-03-20 Regent Court Technologies Method of treating tobacco to reduce nitrosamine content, and products produced thereby
US20010000386A1 (en) * 1999-04-26 2001-04-26 Peele David Mccray Tobacco processing
US6311695B1 (en) 1996-06-28 2001-11-06 Regent Court Technologies Method of treating tobacco to reduce nitrosamine content, and products produced thereby
USRE38123E1 (en) 1996-06-28 2003-05-27 Regent Court Technologies, Llc. Tobacco products having reduced nitrosamine content
US20040118416A1 (en) * 2002-12-20 2004-06-24 Seymour Sydney Keith Equipment and methods for manufacturing cigarettes
US20040122547A1 (en) * 2002-12-20 2004-06-24 Seymour Sydney Keith Equipment and methods for manufacturing cigarettes
US20040118417A1 (en) * 2002-12-20 2004-06-24 Hancock Lloyd Harmon Equipment and methods for manufacturing cigarettes
US20040237979A1 (en) * 2003-05-16 2004-12-02 Seymour Sydney Keith Materials and methods for manufacturing cigarettes
US7073514B2 (en) 2002-12-20 2006-07-11 R.J. Reynolds Tobacco Company Equipment and methods for manufacturing cigarettes
US7117871B2 (en) 2002-12-20 2006-10-10 R.J. Reynolds Tobacco Company Methods for manufacturing cigarettes
US7234471B2 (en) 2003-10-09 2007-06-26 R. J. Reynolds Tobacco Company Cigarette and wrapping materials therefor
BG65186B1 (bg) * 1997-12-23 2007-06-29 Regent Court Technologies Метод за обработка на тютюн за намаляване на съдържанието на нитрозамини и продукти, получени по този метод
US7276120B2 (en) 2003-05-16 2007-10-02 R.J. Reynolds Tobacco Company Materials and methods for manufacturing cigarettes
US7275548B2 (en) 2001-06-27 2007-10-02 R.J. Reynolds Tobacco Company Equipment for manufacturing cigarettes
US7275549B2 (en) 2002-12-20 2007-10-02 R.J. Reynolds Tobacco Company Garniture web control
US7281540B2 (en) 2002-12-20 2007-10-16 R.J. Reynolds Tobacco Company Equipment and methods for manufacturing cigarettes
US7448390B2 (en) 2003-05-16 2008-11-11 R.J. Reynolds Tobacco Company Equipment and methods for manufacturing cigarettes
US20100154810A1 (en) * 2008-12-23 2010-06-24 Williams Jonnie R Tobacco Curing Method
CN106387984A (zh) * 2016-11-15 2017-02-15 吉林烟草工业有限责任公司 一种烟用梗丝及其制备方法和卷烟

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4452260A (en) * 1982-04-05 1984-06-05 Brown & Williamson Tobacco Corporation Tobacco paste cigarette additive and cigarette having same
US4600024A (en) * 1983-06-15 1986-07-15 Hallmark Fabricators Inc Tobacco separation pretreatment system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737955A (en) * 1950-02-08 1956-03-13 Koerber & Co Kg Method and apparatus for drying tobacco products
US3364935A (en) * 1961-08-11 1968-01-23 American Mach & Foundry Tobacco product and process for making same
US3528434A (en) * 1968-04-12 1970-09-15 American Mach & Foundry Method of making reconstituted tobacco
US3664351A (en) * 1969-02-27 1972-05-23 Brown & Williamson Tobacco Corp Cigarette-making machinery

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737955A (en) * 1950-02-08 1956-03-13 Koerber & Co Kg Method and apparatus for drying tobacco products
US3364935A (en) * 1961-08-11 1968-01-23 American Mach & Foundry Tobacco product and process for making same
US3528434A (en) * 1968-04-12 1970-09-15 American Mach & Foundry Method of making reconstituted tobacco
US3664351A (en) * 1969-02-27 1972-05-23 Brown & Williamson Tobacco Corp Cigarette-making machinery

Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5012823A (en) * 1984-08-03 1991-05-07 Philip Morris Incorporated Tobacco processing
US4966170A (en) * 1984-08-03 1990-10-30 Philip Morris Incorporated Tobacco processing
US4962773A (en) * 1987-08-13 1990-10-16 R. J. Reynolds Tobacco Company Process for the manufacture tobacco rods containing expanded tobacco material
US4936920A (en) * 1988-03-09 1990-06-26 Philip Morris Incorporated High void volume/enhanced firmness tobacco rod and method of processing tobacco
US5533528A (en) * 1992-12-31 1996-07-09 Philip Morris Incorporated Method and apparatus for elevating tobacco temperature
US5803081A (en) * 1996-06-28 1998-09-08 Regent Court Technologies Tobacco and related products
US6135121A (en) * 1996-06-28 2000-10-24 Regent Court Technologies Tobacco products having reduced nitrosamine content
USRE38123E1 (en) 1996-06-28 2003-05-27 Regent Court Technologies, Llc. Tobacco products having reduced nitrosamine content
US6311695B1 (en) 1996-06-28 2001-11-06 Regent Court Technologies Method of treating tobacco to reduce nitrosamine content, and products produced thereby
US6338348B1 (en) 1996-06-28 2002-01-15 Regent Court Technologies Method of treating tobacco to reduce nitrosamine content, and products produced thereby
US6202649B1 (en) 1996-12-02 2001-03-20 Regent Court Technologies Method of treating tobacco to reduce nitrosamine content, and products produced thereby
US6425401B1 (en) 1996-12-02 2002-07-30 Regent Court Technologies Llc Method of treating tobacco to reduce nitrosamine content, and products produced thereby
US20020174874A1 (en) * 1996-12-02 2002-11-28 Regent Court Technologies Llc Method of treating tobacco to reduce nitrosamine content, and products produced thereby
WO1998058555A1 (en) 1997-06-20 1998-12-30 Regent Court Technologies Method of treating tobacco to reduce nitrosamine content, and products produced thereby
BG65186B1 (bg) * 1997-12-23 2007-06-29 Regent Court Technologies Метод за обработка на тютюн за намаляване на съдържанието на нитрозамини и продукти, получени по този метод
US7404406B2 (en) 1999-04-26 2008-07-29 R. J. Reynolds Tobacco Company Tobacco processing
US6895974B2 (en) 1999-04-26 2005-05-24 R. J. Reynolds Tobacco Company Tobacco processing
US20030047190A1 (en) * 1999-04-26 2003-03-13 Peele David Mccray Tobacco processing
US20010000386A1 (en) * 1999-04-26 2001-04-26 Peele David Mccray Tobacco processing
US6805134B2 (en) 1999-04-26 2004-10-19 R. J. Reynolds Tobacco Company Tobacco processing
US20050022832A1 (en) * 1999-04-26 2005-02-03 Peele David Mccray Tobacco processing
US7275548B2 (en) 2001-06-27 2007-10-02 R.J. Reynolds Tobacco Company Equipment for manufacturing cigarettes
US7281540B2 (en) 2002-12-20 2007-10-16 R.J. Reynolds Tobacco Company Equipment and methods for manufacturing cigarettes
US7195019B2 (en) 2002-12-20 2007-03-27 R. J. Reynolds Tobacco Company Equipment for manufacturing cigarettes
US7073514B2 (en) 2002-12-20 2006-07-11 R.J. Reynolds Tobacco Company Equipment and methods for manufacturing cigarettes
US7077145B2 (en) 2002-12-20 2006-07-18 R.J. Reynolds Tobacco Company Equipment and methods for manufacturing cigarettes
US20040122547A1 (en) * 2002-12-20 2004-06-24 Seymour Sydney Keith Equipment and methods for manufacturing cigarettes
US20040118416A1 (en) * 2002-12-20 2004-06-24 Seymour Sydney Keith Equipment and methods for manufacturing cigarettes
US7363929B2 (en) 2002-12-20 2008-04-29 R.J. Reynolds Tabacco Company Materials, equipment and methods for manufacturing cigarettes
US7117871B2 (en) 2002-12-20 2006-10-10 R.J. Reynolds Tobacco Company Methods for manufacturing cigarettes
US7275549B2 (en) 2002-12-20 2007-10-02 R.J. Reynolds Tobacco Company Garniture web control
US20040118417A1 (en) * 2002-12-20 2004-06-24 Hancock Lloyd Harmon Equipment and methods for manufacturing cigarettes
US7276120B2 (en) 2003-05-16 2007-10-02 R.J. Reynolds Tobacco Company Materials and methods for manufacturing cigarettes
US20040237979A1 (en) * 2003-05-16 2004-12-02 Seymour Sydney Keith Materials and methods for manufacturing cigarettes
US20060207617A1 (en) * 2003-05-16 2006-09-21 Seymour Sydney K Materials and methods for manufacturing cigarettes
US7448390B2 (en) 2003-05-16 2008-11-11 R.J. Reynolds Tobacco Company Equipment and methods for manufacturing cigarettes
US7047982B2 (en) 2003-05-16 2006-05-23 R.J. Reynolds Tobacco Company Method for registering pattern location on cigarette wrapping material
US7775217B2 (en) 2003-05-16 2010-08-17 R. J. Reynolds Tobacco Company Methods and apparatus for manufacturing cigarettes
US7234471B2 (en) 2003-10-09 2007-06-26 R. J. Reynolds Tobacco Company Cigarette and wrapping materials therefor
US20100154810A1 (en) * 2008-12-23 2010-06-24 Williams Jonnie R Tobacco Curing Method
US8151804B2 (en) 2008-12-23 2012-04-10 Williams Jonnie R Tobacco curing method
CN106387984A (zh) * 2016-11-15 2017-02-15 吉林烟草工业有限责任公司 一种烟用梗丝及其制备方法和卷烟
CN106387984B (zh) * 2016-11-15 2018-01-30 吉林烟草工业有限责任公司 一种烟用梗丝及其制备方法和卷烟

Also Published As

Publication number Publication date
FR2181325A5 (it) 1973-11-30
GB1382774A (en) 1975-02-05
IT980202B (it) 1974-09-30
CA975647A (en) 1975-10-07
DE2319259A1 (de) 1973-11-08

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