US3386449A - Method of making a reconstituted tobacco sheet - Google Patents

Method of making a reconstituted tobacco sheet Download PDF

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Publication number
US3386449A
US3386449A US557927A US55792766A US3386449A US 3386449 A US3386449 A US 3386449A US 557927 A US557927 A US 557927A US 55792766 A US55792766 A US 55792766A US 3386449 A US3386449 A US 3386449A
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United States
Prior art keywords
tobacco
pectins
phosphate
sheet
calcium
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Expired - Lifetime
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US557927A
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English (en)
Inventor
John D Hind
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Philip Morris USA Inc
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Philip Morris USA Inc
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Publication date
Application filed by Philip Morris USA Inc filed Critical Philip Morris USA Inc
Priority to US557927A priority Critical patent/US3386449A/en
Priority to GB23960/67A priority patent/GB1165454A/en
Priority to NO168251A priority patent/NO118662B/no
Priority to FR1558289D priority patent/FR1558289A/fr
Priority to DE19671692933 priority patent/DE1692933A1/de
Priority to FI671692A priority patent/FI46455C/fi
Priority to CH846967A priority patent/CH484633A/de
Priority to DK310267AA priority patent/DK123384B/da
Priority to NL676708413A priority patent/NL146035B/xx
Priority to SE08559/67A priority patent/SE340584B/xx
Application granted granted Critical
Publication of US3386449A publication Critical patent/US3386449A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/287—Treatment of tobacco products or tobacco substitutes by chemical substances by inorganic substances only
    • 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

Definitions

  • United States Patent 2,708,175 describes a binder for reconstituted tobacco which consists of a plant gum, principally of galactomannan.
  • United States Patent 2,592,554 to Frankenburg describes :as binders for reconstituted tobacco various water-soluble polysaccharides, such as al inic and pectinic acids and their sodium and potassium salts, derived from plants other than tobacco.
  • the addition of cellulosic binders further increases the amount of celluice entitled Smoking Compositions and Method of Preparing Same, is a continuation-in-part of application, Ser. No. 336,009, filed on Jan. 6, 1964, now abandoned, and makes possible the production of improved reconstituted tobacco sheet by a method which is simpler and more effective than the methods previously employed.
  • Such a method does not require refining of the binder and is, therefore, more easily and emciently employed than other methods for making binders and for making reconstituted tobacco.
  • the reconstituted tobacco which is obtained in accordance with that invention need not contain any additional cellulose or protein foreign to tobacco, since the binder which is employed may be derived solely from tobacco, and contains no materials other than those which naturally occur in tobacco.
  • reconstituted tobacco produced in accordance with that invention an be so formulated as to be similar in physical properties and chemical composition to natural tobacco.
  • pectic substances will mean those substances which are found in many plant products, and which consist essentially of partially methylated galacturonic acids joined in long chains.
  • the pectin substances found in tobacco plants contain 'acetyl groups and differ considerably from commercially available pectins found in other plants, including sugar beet pectins and citrus and fruit pectins.
  • Tobacco protopectins are uniquely insoluble in hot water as compared with protopectins from many other sources and comprise mainly water-insoluble pectins (protopectins) consisting of the calcium and magnesium salts of partially esterified and slightly acetylated polymers of galacturonic acid.
  • the divalent calcium and/ or magnesium atoms act as crosslinks between acid chains, thus making the polymers water-insoluble.
  • the structure of the calcium salt of a polymer of galacturonic acid can be represented as follows:
  • tobacco parts are bonded together by tobacco pectins which are specially prepared by a process which yields these pectins in a form in which they can be employed as binder materials.
  • the process for preparing tobacco pectins comprises first reacting tobacco parts, preferably in a form in which they present a large surface area, with an aqueous solution of a non-toxic reagent which is capable of reacting with and destroying the calcium and magnesium cross-links in the pectinaceous substances which naturally occur in tobacco. By destroying the calcium and magnesium cross-links, the tobacco 1 No'rE.
  • the term poetins will, tor convenience, hereinafter be employed interchangeably with the term pectic substances.
  • pectins are liberated and are available for use as a binder.
  • the tobacco pectins are then dissolved or dispersed in solution, or are at least sufiiciently released from the inerstices of the tobacco mass so that they form a coating on the surface thereof.
  • Tobacco pectins which are dissolved or dispersed are thereafter precipitated or deposited from the solution, so that they become available for use as a binder material.
  • the tobacco parts can be bonded together without introducing any materials as binders which are foreign to the tobacco, and without the need for the purification of th tobacco pectins, inasmuch as any impurities present are normally present in tobacco and, thus, do not add any undesired qualities to the tobacco.
  • the tobacco parts which can be employed include tobacco leaves, stems and stalks, or a mixture of these, whether in sheet, flake or particulate form.
  • the parts are ground, cut or otherwise prepared in a form which presents a large surface area.
  • the portions of the plant comprising the stems or midribs, and often referred to as tobacco petioles, are the preferred starting materials.
  • Tobacco stalks contain lesser amounts of pectinaceous materials but can also be employed.
  • tobacco pectins are liberated from pectinaceous materials in tobacco by reacting the pectinaceous materials with a reagent which is reactive with the calcium (and/ or magnesium) contained in them to form a compound or product having a lower calcium ion, and, in the case of magnesium, magnesium ion, concentration in the treating solution than the naturally occurring calcium (or magnesium) pectate.
  • the reaction may be generally represented by Equation I, which illustrates the reaction of one type of tobacco protopectin (a calcium salt of a polymer of galacturonic acid) wherein calcium cross-links are present with the reagent of the present invention.
  • R may be hydrogen, in which case the product is pectic acid, or R may be a monovalent inorganic cation, such as sodium, potassium or ammonium.
  • Equation I tln'oss-link (I7OOCa T e f 1r II H O-CH H H H-CO--C H HC- ZR Treating re- CC G- agent of this 2) I invention.
  • a particularly preferred reagent for use in accordance with that invention functions partially as a sequestering agent, and partially as a precipitating reagent.
  • a reagent is DAP (diammoniurn monohydrogen orthophosphate).
  • the pectins should be released from the interstices of the tobacco. That is, they will be made available to the solution or suspension or, in certain instances, they By concentration is meant concentration or activity as set forth in Glasstoue. Textbook of Physical Chemistry, 2nd edition, page 954, D. V. Nostrand Company, Inc.
  • the liberated and separated tobacco pectins can next be precipitated from the treating solution.
  • the tobacco pectins can be recovered by concentrating the solution or suspension in which they are present until they precipitate.
  • This precipitate might also be characterized as an intractable mass, sinc the pectin solution, upon concentration, generally becomes progressively more viscous until it finally dries to leave a deposit in a glassy solid state.
  • the tobacco pectins can be separated and purified before use, they are preferably employed just as they are produced, i.e. in combination with the treated tobacco plant parts from which they were obtained. By using them in this state, no original tobacco flavors are lost and no expensive refining operations are required.
  • the thixotropic properties of solutions containing soluble pectins can be adjusted in the preparation of a cured sheet by the addition of such materials as calcium chloride. If any complex or precipitate formed in the first step of this process is present with the soluble pectates, the thixotropic properties of the mixture can also be adjusted by adjusting the pH to precipitate calcium and magnesium pectates.
  • tobacco pectins as used throughout this specification means liberated tobacco pectins and comprehends pectins which have been freed or liberated from tobacco and are, therefore, not bound into the tobacco structure, as differentiated from the insoluble, naturallyoccurring protopectins which are bound into a plant cell structure.
  • the term includes the free pectinic or pectic acid, as well as soluble salts such as the sodium, potassium, ammonium, pectates and pectinates, and insoluble salts such as the calcium and magnesium pectates and pectinates depending on what method is employed to liberate and obtain them from the naturally-occurring insoluble protopectins.
  • the tobacco pectins produced or liberated in situ or isolated by means of the invention set forth in said Patent No. 3,353,541 can be used as the sole binder material for reconstituted tobacco, i.e. no other materials need be added to make the sheet. They can be sprayed, extruded or cast, thus facilitating application onto a moving belt carrying tobacco dust. Under proper conditions of formulation and processing, reconstituted tobacco made with the tobacco pectins produced by the invention exhibit excellent physical and aromatic properties. The ultimate tensile and wet strengths of the reconstituted tobacco are good. While no other materials need be added to the pectinaceous binder other materials can be added, if desired. For example, organic acids and preservatives which may in themselves be of tobacco origin may be added.
  • Plasticizers such as glycols and polyglycols, and humectants, such as glycerin, may also be added, if desired.
  • the gel strength of the tobacco pectins can be regulated by partial precipitation to control such rheological properties as viscosity, fluidity and elasticity.
  • Other additives or dispersants may be added in small amounts to regulate slurrying qualities, provided, however, that such substances are not added in large enough quantities to adversely affect the flavor or aroma of the final product.
  • the tobacco pectins can be combined with water-soluble gums or water-dispersible gums commonly used as binders for tobacco sheets such as methyl cellulose, sodium carboxymethyl cellulose, guar gum, locust bean gum, or alginates, although it is preferred to minimize or eliminate such additions in order to obtain a product which most closely resembles natural tobacco.
  • the product from treating the tobacco plant parts in accordance with the methods of the process of said Patent No. 3,353,541 may be cast directly and dried and cut into particulate material similar in physical form to ordinary smoking tobacco and so used, preferably mixed with tobacco leaf cut or shreaded in the usual manner.
  • the product may be cast in sheet form, in blocks or as threads or other shapes, as desired.
  • An important use, however, of the prepared composite slurry or easily molded isolated pectinaceous mass is as a binder for ground tobacco and for the making of corresponding tobacco products suitable for smoking.
  • Sheet material of widely different properties may be formed by suitable variations in the manner of forming.
  • One method and product comprises flowing the composite slurry onto a moving belt and applying a layer of dry ground or fragmented tobacco to the wet adhesive surface.
  • a layer of the tobacco there may be first applied to the belt a layer of the tobacco, followed by a layer of the binder, and then a top layer of the tobacco.
  • Various additives may be included with the ground tobacco such as flavo'rants, plasticizers and aromatic substances.
  • the web is ultimately dried and then suitably moistened and rolled up.
  • Such methods of forming continuous sheets are known generally in the art and the details need not be further described. Representative of this procedure is the apparatus and method disclosed in US. Patent 2,734,513.
  • Another method of forming a reconstituted tobacco product comprises mixing ground tobacco thoroughly therewith into a mass of dough-like consistency and then casting the mass in sheet form onto a moving belt surface followed by drying and remoistening in accordance with known procedures. Representative of this procedure is the apparatus and method disclosed in US. Patents 2,708,175 and 2,769,734. Obviously, the reconstituted tobacco may also be formed by molding or other suitable means.
  • a particularly preferred aspect comprises employing, as a binder or directly, the mixture of tobacco and tobacco pectins which have been produced in situ, without any separation steps and without the necessity for any aditional adhesive materials.
  • the DAP which is employed can have varying effects on the resulting sheet.
  • the resulting binder or cast sheet may have some qualities that are not completely satisfactory.
  • the cast may be somewhat darker than might be desired or might burn less evenly than sheets produced using less than 5% of DAP.
  • the present invention comprises a process by which an alkaline earth metal phosphate is added to the DAP treated slurry before it is cast directly on a belt.
  • the alkaline earth metal phosphate may be a calcium phosphate or a magnesium phosphate and may be a synthetic phosphate or a mixture of synthetic prosphates or may be in the form of a naturally-occurring phosphate.
  • suitable phosphates include: dicalcium phosphate, calcium metaphosphate, monocalcium phosphate as salts of phosphoric acid, calcium pyrophosphate, tricalcium phosphate, monetite, brushite, martinite, isoclasite, fluorapatite, chloroapa'tite, podolite, dahllite, trancolite, tribasic or normal magnesium phosphate, magnesium acid phosphate, biphosphate, magnesium pyrophosphate, magnesium ammonium phosphate and the like.
  • the resulting sheet contains from about 13 to 20% of the alkaline earth metal phosphate (by weight) on a solids basis, although from 1 to 50% by weight on a solids basis, of the phosphate, based on the total weight of the reconstituted tobacco sheet, can be employed with good results.
  • the sheet in a preferred embodiment should be made using from 1 to 50% by weight (based on the total sheet) of DAP in combination with from 1 to 50% by weight alkaline earth metal phosphates.
  • the alkaline earth metal phosphate may also be used to improve sheets made by any of the known methods for making reconstituted tobacco sheets, for example, those methods set forth in Patent No. 3,353,541.
  • the alkaline earth metal phospate may be added to the tobacco parts, while in slurry form, either with or without other ingredients, before the slurry is cast as a sheet.
  • Example 1 One hundred grams of whole bright stems were covered with 1500 milliliters of hot tap water. To the mixture was added 7.5 grams of diammonium monohydrogen orthophosphate. Sufiicient ammonium hydroxide was added to bring the pH to 7.0. The resulting mixture was kept over a boiling water bath for three hours. A weighed sample was dried in a C. Freas force draft oven to constant weight. The dry weight was divided by the original weight to determine percent solids. Total solids were found to be 6.61%. The slurry was filtered and proportional amounts of the filtrate and the filtered cake were then remixed for use as a binder base. Three hundred grams of the binder were mixed with 5.949 grams of calcium phosphate, NF (30% of the total solids).
  • a like amount of the binder base to which no calcium phosphate was added was prepared for use as a control. After thorough mixing, the two sets of binder material were cast on metal plates in sheets 50 mils thick. The sheets were then steam dried. It was observed that the binder containing the calcium phosphate was much lighter in color than the control, a quality to be desired in a smoking composition. 'I ⁇ vo sets of the binders were shredded into cigarette filler, made into cigarettes, and smoked. The control which had no calcium phosphate burned unevenly and produced a hard, black ash. The experimental cigarettes with the calcium phosphate burned evenly, produced a gray ash which was slightly weak and gave a fairly mild smoke which was less hard than that of the control.
  • Example 2 One hundred grams of bright tobacco stems were treated as described in Example 1 and 300 grams of the slurry (total solids 6.61%) was used in preparing a mixture to which 3.966 grams of calcium phosphate were added (20% of total solids). The resulting material was mixed in a Waring blendor and cast on metal plates in a sheet 50 mils thick. A similar mixture without the addition of calcium phosphate was treated in the same manner for use as a control. The sheet containing the calicum phosphate was lighter in color than the control. The two sets of filler were shredded and made into cigarettes. When they were smoked, it was found that the cigarette without the calcium phosphate burned unevenly and had a hard, black ash. The experimental cigarette with calcium phosphate burned evenly, had a strong gray ash and Was milder in taste than the control.
  • Example 3 In a pilot plant run, a slurry having a viscosity of 16, 800 centipoise (Brookfieid, 20 r.p'.m.) and a solids content of 12.05% was made from the following materials:
  • Run 1 Run 2 Run 3 Avg.
  • Run 1 Run 2 Run 3 Avg.
  • Cigarettes made from filler prepared from the two types of sheets were smoked and the same advantages described in Examples 1 and 2 were observed.
  • a method of making a reconstituted tobacco sheet which comprises reacting at a temperature of from room temperature to about 300 F. tobacco plant parts with an aqueous solution of diammonium acid phosphate, said phosphate comprising from 1 to 30 parts by weight per 100 parts of tobacco, the reaction being continued until a measurable amount of pectins are released from the tobacco, adding from 1 to parts by weight per parts of tobacco of an alkaline earth metal phosphate selected from the group consisting of calcium and magnesium phosphates, and casting the resulting material as a tobacco sheet.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Manufacture Of Tobacco Products (AREA)
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US557927A 1966-06-16 1966-06-16 Method of making a reconstituted tobacco sheet Expired - Lifetime US3386449A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US557927A US3386449A (en) 1966-06-16 1966-06-16 Method of making a reconstituted tobacco sheet
GB23960/67A GB1165454A (en) 1966-06-16 1967-05-23 Reconstituted Tobacco
NO168251A NO118662B (enrdf_load_html_response) 1966-06-16 1967-05-23
FR1558289D FR1558289A (enrdf_load_html_response) 1966-06-16 1967-06-06
DE19671692933 DE1692933A1 (de) 1966-06-16 1967-06-12 Verfahren zur Herstellung einer kuenstlich zusammengesetzten Tabakfolie
FI671692A FI46455C (fi) 1966-06-16 1967-06-15 Menetelmä jälleenmuodostetun tupakan valmistamiseksi.
CH846967A CH484633A (de) 1966-06-16 1967-06-15 Verfahren zur Herstellung von künstlichen Tabakfolien
DK310267AA DK123384B (da) 1966-06-16 1967-06-15 Fremgangsmåde til fremstilling af et rekonstitueret tobaksark.
NL676708413A NL146035B (nl) 1966-06-16 1967-06-16 Werkwijze voor het vervaardigen van een tabaksfoelie.
SE08559/67A SE340584B (enrdf_load_html_response) 1966-06-16 1967-06-16

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CH (1) CH484633A (enrdf_load_html_response)
DE (1) DE1692933A1 (enrdf_load_html_response)
DK (1) DK123384B (enrdf_load_html_response)
FI (1) FI46455C (enrdf_load_html_response)
FR (1) FR1558289A (enrdf_load_html_response)
GB (1) GB1165454A (enrdf_load_html_response)
NL (1) NL146035B (enrdf_load_html_response)
NO (1) NO118662B (enrdf_load_html_response)
SE (1) SE340584B (enrdf_load_html_response)

Cited By (42)

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US3703177A (en) * 1970-08-13 1972-11-21 Philip Morris Inc Smoking product and method of making same
US4564031A (en) * 1982-06-30 1986-01-14 Tamag Basel Ag Smokable, coherent sheet and method for its manufacture
US4674519A (en) * 1984-05-25 1987-06-23 Philip Morris Incorporated Cohesive tobacco composition
US4821749A (en) * 1988-01-22 1989-04-18 R. J. Reynolds Tobacco Company Extruded tobacco materials
US4880018A (en) * 1986-02-05 1989-11-14 R. J. Reynolds Tobacco Company Extruded tobacco materials
US4987906A (en) * 1989-09-13 1991-01-29 R. J. Reynolds Tobacco Company Tobacco reconstitution process
US5099864A (en) * 1990-01-05 1992-03-31 R. J. Reynolds Tobacco Company Tobacco reconstitution process
US5143097A (en) * 1991-01-28 1992-09-01 R. J. Reynolds Tobacco Company Tobacco reconstitution process
US5159942A (en) * 1991-06-04 1992-11-03 R. J. Reynolds Tobacco Company Process for providing smokable material for a cigarette
US5325877A (en) * 1993-07-23 1994-07-05 R. J. Reynolds Tobacco Company Tobacco reconstitution process
US5327917A (en) * 1990-08-15 1994-07-12 R. J. Reynolds Tobacco Company Method for providing a reconstituted tobacco material
US5339838A (en) * 1992-08-17 1994-08-23 R. J. Reynolds Tobacco Company Method for providing a reconstituted tobacco material
US5377698A (en) * 1993-04-30 1995-01-03 Brown & Williamson Tobacco Corporation Reconstituted tobacco product
US5396911A (en) * 1990-08-15 1995-03-14 R. J. Reynolds Tobacco Company Substrate material for smoking articles
US5415186A (en) * 1990-08-15 1995-05-16 R. J. Reynolds Tobacco Company Substrates material for smoking articles
US5501237A (en) * 1991-09-30 1996-03-26 R. J. Reynolds Tobacco Company Tobacco reconstitution process
US5533530A (en) * 1994-09-01 1996-07-09 R. J. Reynolds Tobacco Company Tobacco reconstitution process
US6679270B2 (en) 2000-10-05 2004-01-20 Nicolas Baskevitch Reduction of nitrosamines in tobacco and tobacco products
US20050005947A1 (en) * 2003-07-11 2005-01-13 Schweitzer-Mauduit International, Inc. Smoking articles having reduced carbon monoxide delivery
US20050172976A1 (en) * 2002-10-31 2005-08-11 Newman Deborah J. Electrically heated cigarette including controlled-release flavoring
US20060162733A1 (en) * 2004-12-01 2006-07-27 Philip Morris Usa Inc. Process of reducing generation of benzo[a]pyrene during smoking
US20060174904A1 (en) * 2005-02-07 2006-08-10 Schweitzer-Mauduit International, Inc. Smoking articles having reduced analyte levels and process for making same
US20070295348A1 (en) * 2006-06-01 2007-12-27 Schweitzer-Mauduit International, Inc. Free air burning smoking articles with reduced ignition proclivity characteristics
US20080178894A1 (en) * 2007-01-26 2008-07-31 Philip Morris Usa Inc. Methods and apparatus for the selective removal of constituents from aqueous tobacco extracts
US20120138074A1 (en) * 2010-12-01 2012-06-07 Rj Reynolds Tobacco Company Smokeless tobacco pastille and moulding process for forming smokeless tobacco products
WO2012170761A1 (en) 2011-06-10 2012-12-13 Schweitzer-Mauduit International, Inc. Tobacco material containing non-isometric calcium carbonate microparticles
WO2013074903A1 (en) 2011-11-18 2013-05-23 R. J. Reynolds Tobacco Company Smokeless tobacco product comprising tobacco - derived pectin component
WO2013170028A1 (en) 2012-05-09 2013-11-14 Lanig Le Bec Tobacco product that produces lower carbon monoxide to tar ratio
EP2540172A4 (en) * 2010-02-26 2014-09-03 Japan Tobacco Inc TOBACCO FILLER AND CIGARETTE
WO2014134254A1 (en) 2013-02-28 2014-09-04 Schweitzer-Mauduit International, Inc. Composition for making a tea beverage or herbal and vegetable broths
WO2014141201A2 (en) 2013-03-15 2014-09-18 Fall Safall Method of reducing tobacco-specific nitrosamines
WO2014140346A1 (en) 2013-03-15 2014-09-18 Philip Morris Products S.A Methods for reducing one or more tobacco specific nitrosamines in tobacco material
WO2014207704A2 (en) 2013-06-26 2014-12-31 Pan Jiayi Filter media
US9149068B2 (en) 2012-10-11 2015-10-06 Schweitzer-Mauduit International, Inc. Wrapper having reduced ignition proclivity characteristics
US10178872B2 (en) 2010-10-29 2019-01-15 Schweitzer-Manduit International, Inc. Method for producing articles of plant origin impregnated with a liquid plant substance
EP3561179A1 (en) 2014-03-28 2019-10-30 SWM Luxembourg s.a.r.l. Reconstituted plant material and its use for packaging, wrapping and food appliances
US10729662B2 (en) 2013-08-20 2020-08-04 Schweitzer-Mauduit International, Inc. Product comprising a plant for medicinal, cosmetic, coloring or dermatologic use
US10751282B2 (en) 2013-08-02 2020-08-25 Schweitzer-Mauduit International, Inc. Edible product comprising reconstituted plant material
US11035079B2 (en) 2016-04-05 2021-06-15 Schweitzer-Mauduit International, Inc. Vegetable paper comprising fibres of a plant
US11484497B2 (en) 2013-02-28 2022-11-01 Schweitzer-Mauduit International, Inc. Composition for making a tea beverage or herbal and vegetable broths
US11737472B2 (en) 2015-03-02 2023-08-29 Mativ Holdings, Inc. Low bulk density composition for making a tea beverage having reduced dust or fines
US12201142B2 (en) 2020-09-11 2025-01-21 SWM Holdings US, LLC Filter for smoking or vaping article comprising a nonwoven substrate

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US2613673A (en) * 1946-07-11 1952-10-14 Int Cigar Mach Co Tobacco sheet material and method of producing the same
US3012915A (en) * 1957-11-21 1961-12-12 Minerals & Chem Philipp Corp Tobacco composition including comminuted solid material affixed thereto
US3121433A (en) * 1961-08-08 1964-02-18 American Mach & Foundry Manufacture of smoking products

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2613673A (en) * 1946-07-11 1952-10-14 Int Cigar Mach Co Tobacco sheet material and method of producing the same
US3012915A (en) * 1957-11-21 1961-12-12 Minerals & Chem Philipp Corp Tobacco composition including comminuted solid material affixed thereto
US3121433A (en) * 1961-08-08 1964-02-18 American Mach & Foundry Manufacture of smoking products

Cited By (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703177A (en) * 1970-08-13 1972-11-21 Philip Morris Inc Smoking product and method of making same
US4564031A (en) * 1982-06-30 1986-01-14 Tamag Basel Ag Smokable, coherent sheet and method for its manufacture
US4674519A (en) * 1984-05-25 1987-06-23 Philip Morris Incorporated Cohesive tobacco composition
US4880018A (en) * 1986-02-05 1989-11-14 R. J. Reynolds Tobacco Company Extruded tobacco materials
US4821749A (en) * 1988-01-22 1989-04-18 R. J. Reynolds Tobacco Company Extruded tobacco materials
US4987906A (en) * 1989-09-13 1991-01-29 R. J. Reynolds Tobacco Company Tobacco reconstitution process
US5099864A (en) * 1990-01-05 1992-03-31 R. J. Reynolds Tobacco Company Tobacco reconstitution process
US5396911A (en) * 1990-08-15 1995-03-14 R. J. Reynolds Tobacco Company Substrate material for smoking articles
US5415186A (en) * 1990-08-15 1995-05-16 R. J. Reynolds Tobacco Company Substrates material for smoking articles
US5327917A (en) * 1990-08-15 1994-07-12 R. J. Reynolds Tobacco Company Method for providing a reconstituted tobacco material
US5143097A (en) * 1991-01-28 1992-09-01 R. J. Reynolds Tobacco Company Tobacco reconstitution process
US5159942A (en) * 1991-06-04 1992-11-03 R. J. Reynolds Tobacco Company Process for providing smokable material for a cigarette
US5501237A (en) * 1991-09-30 1996-03-26 R. J. Reynolds Tobacco Company Tobacco reconstitution process
US5339838A (en) * 1992-08-17 1994-08-23 R. J. Reynolds Tobacco Company Method for providing a reconstituted tobacco material
US5377698A (en) * 1993-04-30 1995-01-03 Brown & Williamson Tobacco Corporation Reconstituted tobacco product
US5325877A (en) * 1993-07-23 1994-07-05 R. J. Reynolds Tobacco Company Tobacco reconstitution process
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FR1558289A (enrdf_load_html_response) 1969-02-28
NL146035B (nl) 1975-06-16
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DE1692933A1 (de) 1972-02-24
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FI46455C (fi) 1973-04-10
CH484633A (de) 1970-01-31
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GB1165454A (en) 1969-10-01

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