US3628541A - Method of producing shaped tobacco products and shaped products produced thereby - Google Patents

Method of producing shaped tobacco products and shaped products produced thereby Download PDF

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Publication number
US3628541A
US3628541A US865532A US3628541DA US3628541A US 3628541 A US3628541 A US 3628541A US 865532 A US865532 A US 865532A US 3628541D A US3628541D A US 3628541DA US 3628541 A US3628541 A US 3628541A
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Prior art keywords
tobacco
weight
percent
pulp
sheet
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US865532A
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English (en)
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Paul Buchmann
Laszlo Egri
Monique Beringer
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Tamag Basel AG
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Tamag Basel AG
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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
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted 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
    • A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products

Definitions

  • aqueous solution having a pH of about 6 to about 10 and containing, in an amount up to about percent by weight of the tobacco material, a substance selected from the group consisting of inorganic base, organic base, alkali metal and ammonium salts and mixtures thereof to form an aqueous slurry.
  • the slurry is subjected to a temperature of not greater than about 100 C. for a period of up to about minutes to form a pulp.
  • To the resulting pulp is added from about 0.5 to about 3 percent by weight based on the weight of the tobacco of a binding agent. Products are shaped from the resulting pulp and the shaped products are dried at a temperature of from about to about C.
  • the cellular units of tobacco plant leaves are held together by a substance contained in the middle lamella.
  • the substances of such middle lamellae consist, in addition to hemicellulose, pentosans and lignins, of highpolymeric polygalacturonic acid, more or less esterified with methanol, said acid comprising a large number of galacturonic acid units (varying according to the treatment of the tobacco). These are linked with a 1,4-glucosidic bond. Long molecules similar to the kind present in cellulose are formed by this linking.
  • the partially esterified polygalacturonic acid is called pectin.
  • Pectin is contained in tobacco in an amount of up to 20 percent. Pectin has the task in the tobacco of holding together the cellular unit. The fixing of the adhesive mechanism, primarily to guarantee water insolubility, occurs in plants by entrance of calcium and/or magnesium in the carboxylic group liberated by saponification of the ester. It is supposed that the free carboxylic group in two adjacent pectin molecules is occupied by magnesium or calcium. The calcium and magnesium salts are water insoluble. The high-polymeric, saponifiable and/or hydrolyzable products present in tobacco can be degraded to water soluble or swellable and adhesive substances, respectively.
  • binding agents in relatively large amounts, preferably in amounts of more than 10 percent, whereby the individual tobacco particles were held together to form a sheet.
  • the flavor of the resultant product was negatively influenced.
  • the binding agents gave rise to additional costs.
  • the present invention provides ,a method for the production of shaped tobacco products not sufiering from the indicated disadvantages.
  • A. preparing an aqueous slurry comprising 1. an aqueous solution having a pH prior to admixture with tobacco of about 6 to about 10 and containing, in an amount up to about percent by weight of the tobacco material, a substance selected from the group consisting of inorganic bases, organic bases and alkali-metal and ammonium salts of organic and inorganic acids.
  • comminuted tobacco material having an average grain size of up to about 100p. which has not been subjected to a preliminary washing, soaking or leaching treatment, is mixed with an aqueous solution having a pH of about 6 to about 10 and containing, in an amount up to about 15 percent by weight of the tobacco material, a substance from the group of inorganic bases, organic bases, alkali metal salt and ammonium salts and mixtures thereof.
  • the thus formed aqueous slurry is subjected to a temperature of not greater than 100 C., for a period of up to about 45 minutes to form a pulp.
  • the resultant pulp is then formed into a shaped product and the resultant shaped product is dried at a temperature of about 60 to about 100 C.
  • the tobacco-starting material can be fermented (cured), partially fermented or unfermented tobacco or tobacco waste or shreds such as arise in the tobacco industry. This is inclusive of veins, stalks, tobacco dust and stems and the like. It is not necessary in this invention to conduct a preliminary washing step and thus the starting material may contain impurities such as sand and the like.
  • the starting material can be that obtained from light tobacco or light tobacco waste or shreds as well as from dark tobaccos or dark tobacco waste or shreds.
  • tobaccos having differing pH values as well as mixtures thereof can be employed as starting materials.
  • so-called light, preferably uncured, oven-dried or sun-dried (redriedl) tobaccos which have a pH value of less than 6 in the main current smoke, such as Virginia, Orient, Smyrna or waste thereof, for example, veins or stalks, may be incorporated into comminuted cigar tobaccos and/or waste thereof having a pH value of more than 6 in the main current smoke for processing.
  • One of the essential benefits of the present invention is that the tobacco product obtained according to the method, even when produced only from tobacco waste materials, corresponds substantially to the color of the tobacco material used as starting material.
  • the products obtained differ in aroma only insignificantly, if at all, from the tobacco-starting material initially employed.
  • the comminuted tobacco-starting material is mixed with an aqueous solution having a pH of about 6 to about 10 to form an aqueous slurry.
  • the aqueous slurry is subjected to a temperature of not greater than 100 C., for a period of up to about 45 minutes to form a pulp.
  • the high-polymeric, saponifiable and/or hydrolyzable substances present in the comminuted tobacco-starting material are made swellable or adhesive. It is important that the slurry be subjected to a temperature which is not greater than 100 C., in view of the fact that substantially higher temperatures will adversely affect the product obtained.
  • the aqueous solution which is utilized to form the slurry has a pH of from about 6 to about 10 and preferably from about 7.5 to about 9.0.
  • the pH of the aqueous solution is adjusted prior to the addition of the comminuted tobacco-starting material to form the slurry. No adjustment in the pH is made after the addition of the comminuted tobacco material.
  • the aqueous solution consists of at least one chemical substance which is either present per se in the tobacco-starting material or has a composition such that its aqueous solution yields, at least partially, the same ions as those ions which are present in the original tobacco-starting material.
  • alkali metal and ammonium salts and mixtures thereof of organic or inorganic acids, free organic bases and free inorganic bases are alkali metal and ammonium salts and mixtures thereof of organic or inorganic acids, free organic bases and free inorganic bases.
  • inorganic bases there may be mentioned potassium hydroxide, sodium hydroxide, ammonia and the like.
  • Ethylenediamine may be mentioned as an example of an organic base.
  • alkali metalsalts or ammonium salts there may be mentioned those of organic acids, as for example, formic acid, acetic acid, carbonic acid, malic acid, citric acid and tartaric acid. Salts of phosphoric acids are also utilizable. Mixtures of these basic salt materials can be utilized to achieve the desired pH of the aqueous solution.
  • the concentration of the aqueous solution, or the amount of the basic or salt materials used in the aqueous solution for the regeneration of the high-polymeric materials depends on the one hand, upon the quality and upon the composition of the tobacco-starting material to be treated, and, on the other hand, upon the desired properties of the shaped tobacco product. In general good results are obtained with a concentration of the material of up to about percent by weight of the dry substance based upon the weight of the tobacco-starting material to be treated. In particular the concentration will generally range from about 0.1 to about 15 percent by weight of the tobacco starting material although 0.1 to 5 percent is preferable.
  • This binding agent may be an adhesive or adhesive mixture such as, for example, raw pulp, ethyl, acetyl, methyl, carboxymethyl, hydroxyethyl cclluloses, pectins, carob bean kernel meal, agar-agar, manucol (sodium alginate), Suar gum, or other mucouslike adhesive substances.
  • this binder material is utilized in an amount up to about 3 percent by weight based on the weight of the tobacco-starting material.
  • the amount of the adhesive or adhesive mixture employed will range from about 0.5 up to about 3 percent by weight based on the weight of the tobacco. Higher amounts will adversely affect the tobacco aroma.
  • fibrous material can also be added to the pulp a fibrous material as, for example, mineral fibers, asbestos fibers, in order to increase the tensile strength of the shaped product. Such materials must be chosen so as not to interfere with the flavor and color of the resultant product. In general any fibrous material which resists burning under conditions whereby the tobacco is smoked will be suitable.
  • the fibrous material can be employed in amounts of up to about 2 percent by weight based on the weight of the tobacco-starting material.
  • Additional materials can, if desired, be added to the resultant pulp prior to shaping.
  • catalytically active substances such as titanium compounds, manganese compounds, and the like, for example, titanium dioxide, manganese sulfate, manganese citrate or tartrate and/or plasticizers such as for example glycerol, sorbite, diethylene glycol and the like.
  • a significantly improved water insolubility of the sheets can also be obtained by the further addition to the pulp of preferably calcium or magnesium salts, e.g., calcium formate, calcium lactate, calcium gluconate, magnesium acetate, magnesium citrate, magnesium gluconate, magnesium formate, and the like or mixtures of the indicated materials.
  • calcium or magnesium salts e.g., calcium formate, calcium lactate, calcium gluconate, magnesium acetate, magnesium citrate, magnesium gluconate, magnesium formate, and the like or mixtures of the indicated materials.
  • the resultant pulp is shaped into the desired form and dried at a temperature of from about 60 to about 100 C.
  • the pulp is passed in a desired thickness onto a belllike support and dried substantially on this support whereupon a dried sheet material is obtained and removed from the support in a per se conventional manner.
  • a plasticizer as, for example, glycerol, sorbite, or diethylene glycol.
  • the plasticizer causes the sheet to maintain a certain plasticity. Amounts of from about 2 to about 5 percent by weight based upon the weight of tobacco of the plasticizer can be employed.
  • the belt moves through a drying zone wherein the shaped material is dried and the sheet material is then removed from the belt by per se conventional means, as for example, by the use of a doctor blade.
  • the drying of the shaped material may be in a conventional manner such as lR-irradiation, warm or hot air, or by direct heating of the belt.
  • the shaped tobacco products produced according to the present invention can be used as cover sheets for cigars, cigarillos and the like. They can also be used for the production of tobacco for cigarettes by reducing such sheets in a conventional manner to very small pieces, thus allowing the ultimate use of all waste tobacco materials resulting in the tobacco industry.
  • EXAMPLE 1 1.0 kg. of finely ground cigarette tobacco or waste material from cigarette production including veins, e.g., a tobacco material which consists primarily of oriental or Virginia tobacco, is slurried in 6 liters of an aqueous potassium hydroxide solution (0.0l-0.l percent concentration) and heated for 30 minutes at to C. After cooling, 0.5 percent by weight of a calcium salt, based on the tobacco weight, e.g., calcium gluconate, is added. The aqueous, and as far as possible, homogeneous, pulp is then applied in the desired thickness of about 0.5 mm. onto an endless steel belt in accordance with a conventional method.
  • This belt is passed through a heating channel at 60 to C., the resulting sheet thereby having its moistness removed while maintaining a certain plasticity.
  • an aqueous solution of plasticizer e.g., glycerol, sorbite diethylene glycol
  • the resulting dried product can be removed in conventional manner from the steel belt by means of a scraping device of known construction, and the resulting tobacco sheet cut to the desired width and/or wound as a roll of any desired length and width.
  • EXAMPLE 2 1.0 kg. of finely ground light cigarette tobacco waste material is slurried in 6 liters of an aqueous ammonia solution having a pH of 7.5 to 10. The suspension is heated under reflux for to 40 minutes at 100 C. and stirred. The further processing, in particular addition of a magnesium compound, e.g., magnesium formate, and of a plasticizer, e.g., diethylene glycol, is effected as in example 1.
  • a magnesium compound e.g., magnesium formate
  • a plasticizer e.g., diethylene glycol
  • EXAMPLE 3 1.0 kg. of finely ground dark waste material of cigar or cigarette tobacco is slurried in 4 liters of an aqueous ammonia or potassium hydroxide solution having a pH of 7.5 to 10'. The working is carried out as above and after terminating the saponification or hydrolysis, respectively, 2 percent by weight of foreign pectin (based on the tobacco weight) is added in the form of an aqueous solution, as well as 1 percent of asbestos fibers (based on the tobacco weight). After homogenizing well, the pulp is applied onto the endless V4A belt and dried and removed in conventional manner.
  • EXAMPLE 4 1.0 kg. of finely ground cigar, cigarette tobacco or waste material thereof having an average grain size of about loop, is slurried in about 5 liters of 'an ammonium phosphate solution (0.1-0.4 percent concentration) or in 5 liters of water containing techn. ammonia and techn. phosphoric acid, in
  • the resulting pulp is worked up into a sheet according to the data in example 1.
  • EXAMPLE 6 A sheet is produced with 1.0 kg. of tobacco according to the data in any one of examples 4or 5, an aqueous calcium gluconate solution being sprayed onto the sheet before removing it from the steel belt. The above procedure is repeated with magnesium citrate.
  • EXAMPLE 7 1.0 kg. finely ground tobacco is slurried in 4 kg. of an ammonium formate solution having a 2.5-4 percent by weight concentration or in 4 kg. of water containing stoichiometric amounts of techn. formic acid and techn. ammonia in such amounts as to obtain a solution having a 2.5-4 percent by weight concentration.
  • the mixture is heated for 15 to 45 minutes at 70-90 C. while stirring. After a short time a pulpy, viscous mass forms which, after addition of 3-7 percent by weight of a plasticizer (based on the tobacco weight), such as glycerol, diethylene glycol, sorbite, etc., and small amounts (1-3 percent by weight based on the tobacco weight) of a binding agent, such as manucol, is applied in a desired thickness onto a V4A steel belt.
  • a plasticizer based on the tobacco weight
  • glycerol diethylene glycol, sorbite, etc.
  • small amounts 1-3 percent by weight based on the tobacco weight
  • a binding agent such as manucol
  • the drying is effected by conventional methods, such as IR- irradiation, warm or hot air, or by direct heating of the belt, the removal by the usual method of scraping ofi'.
  • EXAMPLE 8 1.0 kg. of finely ground cigar, cigarette tobaccos or waste material thereof is mixed with up to percent by weight of polyphosphate based on the tobacco weight, and with 5 liters of water. While stirring well, the mixture is allowed to stand for a while. To this mixture are added 5-10 percent by weight of a plasticizer, e.g., glycerol and 2 percent by weight of carboxymethyl cellulose, based on the tobacco weight. The mixture is homogenized and the resulting mass is spread onto a steel belt in the desired thickness.
  • a plasticizer e.g., glycerol
  • carboxymethyl cellulose carboxymethyl cellulose
  • Waste tobacco material obtained in the production of cigarettes is finely ground to an average particle size of about 50p.
  • 1.0 kg. of this finely ground material is mixed with about 5 percent by weight based on the weight of the tobacco of polyphosphate and with 5 liters of water. The mixture is stirred while heating at a temperature of 80 C. for about 45 minutes. To this mixture is added 5 percent by weight, based on the weight of the tobacco, of glycerine and 2 percent by weight based on the weight of the tobacco of carboxymethyl cellulose. The mixture is homogenized to form a pulp which is then processed into sheet material in accordance with the manner of example 1.
  • EXAMPLE 9 1 kg. of tobacco material ground to a grain size of about 50p. is first treated for 10 to 20 minutes with saturated steam (100 C.) after the addition of about 3 percent by weight of sodium acetate, and thereupon mixed in mechanical mixers with water to form a paste.
  • the paste is further worked up as in the above example 1.
  • glycerine is added along with about 3 percent by weight, based on the weight of the tobacco material, of carboxymethyl cellulose.
  • the resultant paste is then processed to form a tobacco sheet material in accordance with the method of claim 1.
  • EXAMPLE 10 1.0 kg. of finely ground cigar tobacco is slurried with 0.25 to 0.35 percent by weight of solid potassium carbonate, based on the tobacco weight, in 4-6 liters of water, and further worked up as in example 8.
  • EXAMPLE 1 l 1.0 kg. of dark cigar tobacco (finely ground) is heated at 90 C., with 10 g. asbestos fibers for 30 minutes with 1 percent by weight of ammonium phosphate in 3 liters of water. 1 g. of an ue s we s, P c l"i1'.! 2.22 93! qqssz ttst gn. is then added after stirring well and adding 3 percent by weight of a plasticizer, e.g., glycerol, whereupon the mixture is processed according to any one of the above examples.
  • a plasticizer e.g., glycerol
  • the weight of the tobacco material of ammonium phosphate in 3 liters of water.
  • To this solution is added 1 kg. of an aqueous swollen pectin solution having a 2 percent concentration.
  • the resultant is stirred well and to the mixture is added 3 percent by weight of glycerine, based on the weight of the tobacco material.
  • the resultant pulp is processed in the mannerof example 1 to obtain a tobacco sheet material.
  • the comminuted tobacco is slurried in an aqueous solution of the volume of line D containing the percent by weight set forth in line C.
  • the slurry is heated for the time of line G at the temperature of line F to-obtain a pulp.
  • the pulp is cooled as per line H and binder is added as per line I.
  • Fibrous material and potassium formate is added to the pulp as per lines J and K, respectively.
  • the additions of lines L, M and N are carried out by addition to the pulp in the following examples. However, such additions may occur in any of the preceding steps or be sprayed on the resultant sheets before completion of drying.
  • line E the 1.8 percent by weight relates to the entire quantity of tobacco, thus including the second kilogram added in accordance with line P.
  • This second addition of tobacco (which is of the same quality as the first addition) is madeto the slurry after cooling.
  • a process for producing a tobacco sheet material which consists essentially of A.
  • Preparing an aqueous slurry comprising 1. an aqueous solution having a pH prior to admixture with tobacco of from about 7.5 to about 9 and containing, in an amount of from about 0.1 to about 5 percent by weight of the tobacco material, a substance selected from the group consisting of alkali and ammonium salts of acids from the group of formic acid, acetic acid, carbonic acid, malic acid, citric acid, tartaric acid,
  • the softener is an aqueous solution of a member of the group consisting of glycerol, sorbite, and diethylene glycol and mixtures thereof.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Paper (AREA)
US865532A 1963-09-02 1969-10-10 Method of producing shaped tobacco products and shaped products produced thereby Expired - Lifetime US3628541A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH1081763A CH450995A (de) 1963-09-02 1963-09-02 Verfahren zur Herstellung von Tabakfolien
CH285164A CH480029A (de) 1963-09-02 1964-03-05 Verfahren zur Herstellung von Tabakfolien
CH424164A CH476468A (de) 1963-09-02 1964-04-03 Verfahren zur Herstellung von Tabakfolien
CH736764A CH476469A (de) 1963-09-02 1964-06-05 Verfahren zur Herstellung von Tabakfolien

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US3628541A true US3628541A (en) 1971-12-21

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US865532A Expired - Lifetime US3628541A (en) 1963-09-02 1969-10-10 Method of producing shaped tobacco products and shaped products produced thereby

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US (1) US3628541A (xx)
BE (1) BE652585A (xx)
CH (4) CH450995A (xx)
DE (1) DE1517335B1 (xx)
ES (1) ES303876A1 (xx)
FR (1) FR1533166A (xx)
GB (1) GB1078667A (xx)
IL (1) IL22016A (xx)
NL (1) NL6410175A (xx)
SE (1) SE341779B (xx)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894544A (en) * 1972-06-02 1975-07-15 Tamag Basel Ag Process for producing tobacco structures
US3943942A (en) * 1973-07-09 1976-03-16 Imperial Chemical Industries Limited Smoking mixtures
US3986515A (en) * 1973-12-20 1976-10-19 Tamag Basel Ag Process for the production of smokable products
US4018233A (en) * 1974-02-05 1977-04-19 Sumitomo Chemical Company Limited Shaped matters of tobaccos and process for producing the same
US4068671A (en) * 1975-07-25 1978-01-17 Amf Incorporated Nicotine removal process
US4069831A (en) * 1973-12-20 1978-01-24 Tamag Basel Ag Apparatus for use in the preparation of smokable products
US4183362A (en) * 1974-08-29 1980-01-15 Liggett Group Inc. Decreasing the burn rate of smoking tobaccos
US4196739A (en) * 1976-11-18 1980-04-08 Service D'exploitation Industrielle Des Tabacs Et Des Allumettes Smokable tobacco fiber-material
US4256126A (en) * 1978-08-02 1981-03-17 Philip Morris Incorporated Smokable material and its method of preparation
US4421126A (en) * 1981-06-04 1983-12-20 Philip Morris Incorporated Process for utilizing tobacco fines in making reconstituted tobacco
US4848373A (en) * 1987-04-13 1989-07-18 Helme Tobacco Company Nicotine removal process and product produced thereby
US4972855A (en) * 1988-04-28 1990-11-27 Dainichiseika Color & Chemicals Mfg. Co., Ltd. Shredded tobacco leaf pellets, production process thereof and cigarette-like snuffs
US6508254B1 (en) 2000-07-07 2003-01-21 Brown & Williamson Tobacco Corporation Reduced protein reconstituted tobacco and method of making same
US20040173228A1 (en) * 2003-03-04 2004-09-09 R. J. Reynolds Tobacco Company Method for producing flavorful and aromatic compounds from tobacco
US20050039767A1 (en) * 2002-11-19 2005-02-24 John-Paul Mua Reconstituted tobacco sheet and smoking article therefrom
US20050056294A1 (en) * 2002-11-19 2005-03-17 Wanna Joseph T. Modified reconstituted tobacco sheet
US20080216854A1 (en) * 2007-03-09 2008-09-11 Philip Morris Usa Inc. Methods of making reconstituted tobacco sheets
CN103462210A (zh) * 2013-09-29 2013-12-25 中国烟草总公司郑州烟草研究院 一种适用于加热非燃烧型烟草制品的烟草膜制备方法
CN104886755A (zh) * 2015-05-07 2015-09-09 云南瑞升烟草技术（集团）有限公司 用于造纸法再造烟叶的烟梗改性处理方法
US20160213063A1 (en) * 2013-10-14 2016-07-28 Philip Morris Products S.A. Heated aerosol-generating articles comprising improved rods
CN108464524A (zh) * 2018-03-29 2018-08-31 四川中烟工业有限责任公司 一种深色雪茄茄衣的制作方法

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US3760815A (en) * 1971-01-06 1973-09-25 Philip Morris Inc Preparation of reconstituted tobacco
DE3583820D1 (de) * 1984-05-25 1991-09-26 Philip Morris Prod Kohaesive tabakzusammensetzung.
CN112438420B (zh) * 2020-12-03 2022-08-30 山东瑞博斯烟草有限公司 一种降低造纸法烟草薄片刺激性的方法
CN115005492A (zh) * 2022-07-05 2022-09-06 云南省烟草农业科学研究院 促进雪茄烟叶发酵绿色天然的复配发酵介质及其发酵方法

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GB562786A (en) * 1941-10-09 1944-07-17 Int Cigar Mach Co Improvements in or relating to the preparation of material in sheet, web, or filament form from tobacco
GB871952A (en) * 1957-12-24 1961-07-05 Philip Morris Inc Improved tobacco products and preparation thereof
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US3145717A (en) * 1959-10-22 1964-08-25 C H Dexter & Sons Inc Methods of making tobacco web material
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US3255760A (en) * 1962-08-03 1966-06-14 Kimberly Clark Co Tobacco product which produces less tars
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DE872176C (de) * 1946-06-15 1953-03-30 Gen Cigar Co Verfahren zur Herstellung von Tabakwaren
US2626612A (en) * 1948-10-02 1953-01-27 American Mach & Foundry Tobacco sheet material and method of making same
DE844250C (de) * 1949-08-05 1952-07-17 Ludwig Dipl-Ing Lang Verfahren zur Herstellung von Umhuellungen fuer Tabakwaren

Patent Citations (7)

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Publication number Priority date Publication date Assignee Title
GB562786A (en) * 1941-10-09 1944-07-17 Int Cigar Mach Co Improvements in or relating to the preparation of material in sheet, web, or filament form from tobacco
GB871952A (en) * 1957-12-24 1961-07-05 Philip Morris Inc Improved tobacco products and preparation thereof
US3145717A (en) * 1959-10-22 1964-08-25 C H Dexter & Sons Inc Methods of making tobacco web material
US3121433A (en) * 1961-08-08 1964-02-18 American Mach & Foundry Manufacture of smoking products
US3203432A (en) * 1962-05-03 1965-08-31 Brown & Williamson Tobacco Production of tobacco smoking materials
US3255760A (en) * 1962-08-03 1966-06-14 Kimberly Clark Co Tobacco product which produces less tars
US3353541A (en) * 1966-06-16 1967-11-21 Philip Morris Inc Tobacco sheet material

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894544A (en) * 1972-06-02 1975-07-15 Tamag Basel Ag Process for producing tobacco structures
US3943942A (en) * 1973-07-09 1976-03-16 Imperial Chemical Industries Limited Smoking mixtures
US4069831A (en) * 1973-12-20 1978-01-24 Tamag Basel Ag Apparatus for use in the preparation of smokable products
US3986515A (en) * 1973-12-20 1976-10-19 Tamag Basel Ag Process for the production of smokable products
US4018233A (en) * 1974-02-05 1977-04-19 Sumitomo Chemical Company Limited Shaped matters of tobaccos and process for producing the same
US4183362A (en) * 1974-08-29 1980-01-15 Liggett Group Inc. Decreasing the burn rate of smoking tobaccos
US4068671A (en) * 1975-07-25 1978-01-17 Amf Incorporated Nicotine removal process
US4196739A (en) * 1976-11-18 1980-04-08 Service D'exploitation Industrielle Des Tabacs Et Des Allumettes Smokable tobacco fiber-material
US4256126A (en) * 1978-08-02 1981-03-17 Philip Morris Incorporated Smokable material and its method of preparation
US4421126A (en) * 1981-06-04 1983-12-20 Philip Morris Incorporated Process for utilizing tobacco fines in making reconstituted tobacco
US4848373A (en) * 1987-04-13 1989-07-18 Helme Tobacco Company Nicotine removal process and product produced thereby
US4972855A (en) * 1988-04-28 1990-11-27 Dainichiseika Color & Chemicals Mfg. Co., Ltd. Shredded tobacco leaf pellets, production process thereof and cigarette-like snuffs
US6508254B1 (en) 2000-07-07 2003-01-21 Brown & Williamson Tobacco Corporation Reduced protein reconstituted tobacco and method of making same
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Also Published As

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DE1517335B1 (de) 1972-05-04
ES303876A1 (es) 1965-05-16
SE341779B (xx) 1972-01-17
CH450995A (de) 1968-05-15
GB1078667A (en) 1967-08-09
CH480029A (de) 1969-10-31
IL22016A (en) 1969-01-29
FR1533166A (fr) 1968-07-19
CH476469A (de) 1969-08-15
CH476468A (de) 1969-08-15
NL6410175A (xx) 1965-03-03
BE652585A (xx) 1965-03-02

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