EP1933651B1 - Smoking product wrapping material having improved smouldering properties - Google Patents

Smoking product wrapping material having improved smouldering properties Download PDF

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Publication number
EP1933651B1
EP1933651B1 EP05811017A EP05811017A EP1933651B1 EP 1933651 B1 EP1933651 B1 EP 1933651B1 EP 05811017 A EP05811017 A EP 05811017A EP 05811017 A EP05811017 A EP 05811017A EP 1933651 B1 EP1933651 B1 EP 1933651B1
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EP
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Prior art keywords
wrapping material
smoking article
composition
chemically crosslinked
article wrapping
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EP05811017A
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German (de)
French (fr)
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EP1933651A1 (en
Inventor
Thomas Fritzsching
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Glatz Feinpapiere Julius Glatz GmbH
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Glatz Feinpapiere Julius Glatz GmbH
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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers
    • A24D1/025—Cigars; Cigarettes with special covers the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses

Definitions

  • the present invention relates to an improved smoking article wrapping material useful in smoking articles, e.g. Cigarettes, controlled smoldering supplies, so that on the one hand the smoked goods smolder unhindered at freely entering air and on the other hand, on documents, which in turn may be combustible, even extinguished.
  • smoking articles e.g. Cigarettes
  • controlled smoldering supplies so that on the one hand the smoked goods smolder unhindered at freely entering air and on the other hand, on documents, which in turn may be combustible, even extinguished.
  • Cigarettes with increased self-quenching tendency the cigarette paper having annular zones whose air permeability is lowered by the presence of a polymer.
  • the polymers used are in particular polyvinyl acetate, partially hydrolyzed polyvinyl acetate or polyvinyl alcohol.
  • thermoplastic polymers used in this patent are hydroxypropyl cellulose, ethyl cellulose, ethyl hydroxyethyl cellulose, N-substituted acrylamides, poly (vinyl methyl ether), poly (ethylene oxide), poly (vinyl alcohol), poly (2-ethyloxazoline), methyl cellulose ether, cellulose acetate, cellulose acetate phthalate and cellulose acetate butyrate.
  • the WO-A-02/067704 a tobacco ware wrapping material having applied thereto in at least one zone a composition for lowering the permeability of the base wrapping material, the composition comprising a permeability reducing substance, a burning rate retarding substance and a burning rate accelerating substance.
  • a permeability reducing substance such as starch, modified starch, starch derivatives, cellulose, cellulose derivatives, chitosan, chitosan derivatives, chitin, chitin derivatives, alginate, alginate derivatives, or a combination of these compounds.
  • the air permeability of tobacco product wrapping paper without zones or in sections where no air permeability changing zones are applied is in a range of 20 to 200 CU, while in the applied zones it is usually very low and usually depending on the construction of the cigarette 3 and 15 CU lies.
  • the differences in the air permeabilities at the applied zones on the one hand and the base cigarette paper on the other hand change the amount and composition of the smoke ingredients compared to a cigarette paper which has not decreased in air permeability, but this is undesirable in the art. Therefore, cigarette paper with air permeabilities in the zones which are above the previously known level, are of particular interest, since in this case the amount and composition of the smoke ingredients would undergo less change.
  • the aim of the present invention is thus to overcome the above-described problems and to provide a tobacco product wrapping material with specifically modified glow characteristics.
  • a smoking article wrapping material which is a base wrapping material coated on at least discrete zones with a composition comprising a mechanically fragmented, chemically crosslinked polysaccharide having a particle size (weighted average) of the polysaccharide dry product in the range of 1 to 1000 microns.
  • a mechanically fragmented, chemically cross-linked polysaccharide according to the invention can (e) a mechanical fragmentation and a chemically cross-linked (s) starch, modified starch, starch derivative, cellulose, cellulose derivative, chitosan, chitosan derivative, chitin, chitin derivative, alginate, alginate derivative or a combination of these Compounds, preferably a mechanically fragmented, chemically crosslinked starch, can be used.
  • a mechanically fragmented, chemically crosslinked polysaccharide is meant a polysaccharide which is comminuted by a shearing action and subsequent expansion using, for example, an extruder, this polysaccharide Also, a variety of chemical reactions such as oxidation or reduction can be subjected.
  • a starch as a granular starting starch, for example, a native or an oxidatively, thermally or hydrolytically degraded starch or a chemically modified ether and ester derivative thereof can be used.
  • the preparation of ionised polysaccharide derivatives may e.g. with the following cationization or anionization agents in the substitution range between 0.02-0.1 (DS): 3-chloro-2-hydroxypropyltrimethylammonium chloride, 2,3-epoxypropyltrimethylammonium chloride, 3-chloro-2-hydroxypropyldimethyldodecylammonium chloride, 3-chloro-2-one hydroxypropyldimethyloctadecylammonium chloride, sodium monochloroacetate, acetic anhydride and / or maleic anhydride.
  • DS 0.02-0.1
  • the bifunctional or polyfunctional agent which can be used is selected from the group consisting of aliphatic epoxyhalogen or dihalogen compounds, phosphoroxyhalides, alkali metal metaphosphates, aldehydes, including aldehyde-containing resins, acid anhydrides and polyfunctional reagents such as, for example, cyanuric chloride.
  • Chemical modification reactions can be carried out both before extrusion and in the extruder. It may be useful to perform these before extrusion, because then, after fragmentation in the extruder and subsequent dispersion of the ground product in the water dispersions are formed with smaller fragments.
  • the starches may preferably be derived from tuber and root starches as well as cereal starches as starting material.
  • Typical tuber and root strengths are potato starch, tapioca starch; where readily available cereal starches are corn starch or wheat starch.
  • the useful starch is by no means limited to these starches - the advantage of the foregoing is merely that they are readily available on the market today. It is of course also possible to use mixtures of one or more starches selected from the group consisting of native, oxidatively, thermally or hydrolytically degraded and chemically modified tuber, root or grain starches.
  • tuber, root or grain flours can be used as raw material.
  • an extruder both single-screw and twin-screw extruders
  • a defined fragmentation can be achieved, wherein the finished dry product is ground under 2 mm grain size, preferably less than 1 mm, with an average particle size of about 500 microns.
  • the composition to be applied to the base wrapping material may optionally contain a solvent in addition to the mechanically fragmented, chemically crosslinked polysaccharide.
  • Suitable organic solvents are, for example, isopropanol, ethanol, dimethylacetamide, N-methylpyrrolidone and / or N-methylmorpholine N-oxide.
  • composition to be applied to the base cladding material may optionally contain a filler, a burning rate retarding substance, and / or a burning rate accelerating substance.
  • the filler according to the invention can be mentioned calcium carbonate, kaolin, titanium dioxide, talc and magnesium oxide.
  • disodium hydrogenphosphate can be mentioned as the burning rate retarding substance.
  • alkali metal or alkaline earth metal salts such as sodium, potassium and magnesium salts, or carboxylic acid salts, such as acetic, citric, malic, lactic and tartaric salts, in particular citric acid salts, can be used as the burning rate accelerating substance.
  • the composition may also contain another substance which changes the air permeability of the base cladding material.
  • this does not allow mechanical fragmentation and chemical Cross-linked polysaccharides, such as starch, modified starch, starch derivatives, cellulose, cellulose derivatives, chitosan, chitosan derivatives, chitin, chitin derivatives, alginate, alginate derivatives or a combination of these compounds.
  • composition filler, solvent, burning rate retarding and / or burning rate accelerating substance
  • the proportions of the respective constituents in the composition to be applied to the base smoking article wrapping material are usually 20-100%, preferably 45-100%, especially preferably 70-100% chemically crosslinked, mechanically fragmented polysaccharide, especially starch, optionally 0 to 40%, preferably 0 to 20% of a conventionally used polysaccharide, optionally 0-50%, preferably 0-30% filler, and optionally 0-6%, preferably 0-3%, of the burning rate retarding and / or accelerating substance.
  • the base cladding material to be used according to the invention usually consists of cellulose fibers obtained, for example, from flax, softwood or hardwood. To alter the properties of the base wrapper material, if desired, various blends of cellulosic fibers may also be used as the base wrapper material. Further, usually the base cladding material contains filler and the burning rate promoting or accelerating substances.
  • the basis weight of the inventively used Rauschwarenumhüllungsmaterials is usually 15 to 60 g / m 2 , preferably 18 to 40 g / m 2 .
  • a further aspect of the present invention is a method for producing a tobacco product wrapping material as described above, the method comprising applying a composition comprising a mechanically fragmented, chemically crosslinked polysaccharide having a particle size (weighted average) of the dry product in the range of 1 to 1000 microns comprises, at least discrete zones of a base smoking article wrapping material.
  • compositions to the base smoking article wrapping material are carried out according to the invention usually after the production of the base smoking article wrapping material, for example by means of a spraying or printing technique, preferably a gravure printing technique.
  • the application of the composition to the base sanitary ware wrapping material can also be effected by application by means of a pressure nozzle with a discharge slot extending generally transversely to the running direction.
  • the pressure nozzle which can be used according to the invention is usually a nozzle with an inner chamber under a pre-pressure, controlled and rapidly reacting valves which control the outlet into a nozzle slot, and a geometry of nozzle and exit slot adapted to the desired application.
  • the process With sufficient viscosity of the application medium, the process provides uniform coatings with clear and precisely offset front and rear edges. Since it is not a spray process, no unwanted sporadic splashes of the applied material occur outside the discrete area.
  • the application of the composition to be applied to the base smoking article wrapping material according to one of the above-described application methods takes place at least in discrete zones of the base smoking article wrapping material, if desired also on the entire base smoking article wrapping material.
  • the application amount of the composition to the base smoking article wrapping material is usually in a range of 0.1-10 g / m 2, preferably from 0.3 to 2 g / m 2 of the base smoking article wrapping material.
  • the application is usually carried out so that the application on the resulting tobacco product wrapping material is not or hardly visible and the treated zones have a smooth and flat structure, which corresponds substantially to that of the untreated zones.
  • the width and spacing of the applied zones depends on a number of variables, such as the air permeability of the baseware wrap material, the density of the composition of the tobacco rod, and so forth.
  • the zones usually have a width of at least 3 mm, preferably 5 to 10 mm.
  • the distance between the zones also depends on a number of variables. Usually, the distance of the zones should be 1 to 30 mm, preferably 10 to 25 mm.
  • the tobacco wrapper paper in the rolled form
  • the tobacco product wrapping material has reduced air permeability in the area of these zones, which extinguishes the cigarette in this area, as long as there is a hindrance to the free access of air.
  • NIST test according to NIST Technical Note 1436
  • a general glow test is performed on free glow, in which a cigarette is lighted once it has been mounted in a holder while allowing free access of air.
  • the smoking product wrapping material claimed according to the invention it is achieved that, on the one hand, the smoking product smolders unhindered on freely admitted air, but on the other hand extinguishes itself on documents, which in turn can be combustible. This may reduce the tendency of tobacco products to smoke, provided that the smoking article wrapping material is used as a wrapper for self-extinguishing tobacco products and the smoking article comes into contact with flammable substrates such as textiles (carpet, upholstered furniture) in the glowing state.
  • a further aspect of the present invention is a tobacco article comprising a tobacco rod, a tobacco wrapper material which is a base wrapper material having coated thereon at least in discrete zones a composition comprising a mechanically fragmented, chemically crosslinked polysaccharide having a particle size ( weighted average) of the dry product in the range of 1 to 1000 microns and a phyllosilicate, and optionally comprises a filter.
  • Test cigarettes were made. For this purpose, discrete bands of 7 mm width were printed by means of intaglio printing on cigarable standard cigarette paper Cigla 55 (air permeability 55 CU, Julius Glatz GmbH, Neidenfels) at a distance of 18 mm.
  • Cigla 55 air permeability 55 CU, Julius Glatz GmbH, Neidenfels
  • the pressure medium used was a 13.5% aqueous suspension of a chemically crosslinked and mechanically fragmented potato starch (F6493, Emsland-Stärke GmbH, Emlichheim).
  • the air permeability in the coated areas is 14 CU. NIST test and test for free glow are 100% fulfilled.
  • test cigarettes were prepared analogously to Example 1, except that a 7.5% aqueous solution of an extremely film-formable potato starch hydroxypropyl ether (Emsize E2, Emsland-Stärke GmbH) was used as the pressure medium.
  • the air permeability in the coated areas is 14 CU, the test for free glow is 100%, but the NIST test is met only 63%
  • test cigarettes were prepared analogously to Example 1, except that a 12.5% strength suspension of the chemically crosslinked and fragmented potato starch from Example 1 (F6493) was used as the pressure medium.
  • the air permeability within the coated areas is 25 CU, the NIST test and the test for free mica are 100% fulfilled.
  • test cigarettes were prepared analogously to Example 1, except that an 8% strength suspension of potato starch hydroxypropyl ether (Emsol K 115, Emsland-Stärke GmbH, Emlichheim) in water was used as the pressure medium.
  • the air permeability is 37 CU, free glow is fulfilled, the NIST test was not fulfilled.

Abstract

Disclosed is a smoking article wrapping material comprising a base wrapping material to which has been applied, at least in discrete zones, a composition comprising a mechanically fragmented, chemically crosslinked polysaccharide having a particle size (weighted average) in the range from 1 to 1000 μm for the dry product; a process for production thereof; and a smoking article comprising the smoking article wrapping material described.

Description

Die vorliegende Erfindung betrifft ein verbessertes Rauchwarenumhüllungsmaterial, das bei Rauchwaren, z.B. Zigaretten, kontrollierte Glimmeigenschaften liefert, so dass einerseits die Rauchware unbehindert an frei zutretender Luft abglimmt und andererseits auf Unterlagen, die ihrerseits brennbar sein können, selbst erlischt.The present invention relates to an improved smoking article wrapping material useful in smoking articles, e.g. Cigarettes, controlled smoldering supplies, so that on the one hand the smoked goods smolder unhindered at freely entering air and on the other hand, on documents, which in turn may be combustible, even extinguished.

Auf dem einschlägigen Fachgebiet ist es bekannt, Substanzen wie Polymere, Silikate, Polysaccharide und Derivate in wässrigen oder nichtwässrigen Lösungen in hinreichender Menge und in geeigneter geometrischer Verteilung auf ein Basisrauchwarenumhüllungsmaterial, vorzugsweise Zigarettenpapier, aufzutragen, um hierdurch die Glimmeigenschaften des Rauchwarenumhüllungsmaterials zu beeinflussen.It is known in the art to apply substances such as polymers, silicates, polysaccharides and derivatives in aqueous or nonaqueous solutions in sufficient quantity and geometrical distribution to a base smoking article wrapping material, preferably cigarette paper, to thereby influence the smoking characteristics of the smoking article wrapping material.

So beschreibt die WO-A-03/034845 Zigaretten mit erhöhter Selbstlöschungstendenz, wobei das Zigarettenpapier ringförmige Zonen aufweist, deren Luftdurchlässigkeit durch die Gegenwart eines Polymers erniedrigt ist. Bei den eingesetzten Polymeren handelt es sich insbesondere um Polyvinylacetat, teilhydrolysiertes Polyvinylacetat oder Polyvinylalkohol.That's how it describes WO-A-03/034845 Cigarettes with increased self-quenching tendency, the cigarette paper having annular zones whose air permeability is lowered by the presence of a polymer. The polymers used are in particular polyvinyl acetate, partially hydrolyzed polyvinyl acetate or polyvinyl alcohol.

Die US-Patentanmeldung Nr. 20020129824 offenbart ein Zigarettenpapier zur Herstellung von Zigaretten mit geringer Glimmneigung, das ein Basispapier mit mehreren darauf aufgedruckten Zonen eines thermoplastischen Polymers mit Coresta-Luftdurchlässigkeiten zwischen 0 und 14,9 CU (= Coresta-Einheiten, 1 CU =1 cm2/cm3*min bei 1 kPa Druckdifferenz, gemäß dem empfohlenen CORESTA [Cooperative Centre for Scientific Research Relative to Tobacco, Paris, Frankreich]-Messverfahren Nr. 40: Determination of Air Permeability of Materials used as Cigarette Paper, Filter Plug Wrap and Filter Joining Paper including Materials Having an oriented Permeable Zone, Oktober 1994, veröffentlicht in Bulletin 1994-3/4) umfasst. Bei den in dieser Patentschrift verwendeten thermoplastischen Polymeren handelt es sich um Hydroxypropylcellulose, Ethylcellulose, Ethylhydroxyethylcellulose, N-substituierte Acrylamide, Poly(vinylmethylether), Poly(ethylenoxid), Poly(vinylalkohol), Poly(2-ethyloxazolin), Methylcelluloseether, Celluloseacetat, Celluloseacetatphthalat und Celluloseacetatbutyrat.The U.S. Patent Application No. 20020129824 discloses a cigarette paper for the manufacture of low smoldering cigarettes which comprises a base paper having a plurality of thermoplastic polymer zones printed thereon with Coresta air permeabilities between 0 and 14.9 CU (= Coresta units, 1 CU = 1 cm 2 / cm 3 * min at 1 kPa pressure difference, according to the recommended CORESTA-Measurement Method No. 40: Determination of Air Permeability of Materials Used as Cigarette Paper, Filter Plug Wrap and Filter Joining Paper including Materials Having An oriented Permeable Zone, October 1994, published in Bulletin 1994-3 / 4). The thermoplastic polymers used in this patent are hydroxypropyl cellulose, ethyl cellulose, ethyl hydroxyethyl cellulose, N-substituted acrylamides, poly (vinyl methyl ether), poly (ethylene oxide), poly (vinyl alcohol), poly (2-ethyloxazoline), methyl cellulose ether, cellulose acetate, cellulose acetate phthalate and cellulose acetate butyrate.

Ferner offenbart die WO-A-02/067704 ein Rauchwarenumhüllungsmaterial, auf das in mindestens einer Zone eine Zusammensetzung zur Verringerung der Permeabilität des Basisumhüllungsmaterials aufgebracht ist, wobei die Zusammensetzung eine die Permeabilität verringernde Substanz, eine die Brenngeschwindigkeit verzögernde Substanz und eine die Brenngeschwindigkeit beschleunigende Substanz umfasst. Als die die Permeabilität des Basisumhüllungsmaterials verringernde Substanz werden insbesondere Polysaccharide, wie Stärke, modifizierte Stärke, Stärkederivate, Cellulose, Cellulosederivate, Chitosan, Chitosanderivate, Chitin, Chitinderivate, Alginat, Alginatderivate oder eine Kombination dieser Verbindungen verwendet.Further, the WO-A-02/067704 a tobacco ware wrapping material having applied thereto in at least one zone a composition for lowering the permeability of the base wrapping material, the composition comprising a permeability reducing substance, a burning rate retarding substance and a burning rate accelerating substance. As the the In particular, polysaccharides, such as starch, modified starch, starch derivatives, cellulose, cellulose derivatives, chitosan, chitosan derivatives, chitin, chitin derivatives, alginate, alginate derivatives, or a combination of these compounds, are used for permeability of the base wrapping material.

Erfahrungsgemäß liegt die Luftdurchlässigkeit von Rauchwarenumhüllungspapier ohne Zonen bzw. in Abschnitten, in denen keine die Luftdurchlässigkeit verändernde Zonen aufgebracht sind, in einem Bereich von 20 bis 200 CU, während sie in den aufgebrachten Zonen üblicherweise sehr niedrig ist und üblicherweise je nach Konstruktion der Zigarette zwischen 3 und 15 CU liegt. Die Unterschiede der Luftdurchlässigkeiten an den aufgebrachten Zonen einerseits und dem Basiszigarettenpaper andererseits verändern die Menge und die Zusammensetzung der Rauchinhaltsstoffe gegenüber einem in der Luftdurchlässigkeit nicht verminderten Zigarettenpapier, was jedoch auf dem einschlägigen Fachgebiet als unerwünscht anzusehen ist. Daher sind Zigarettenpapier mit Luftdurchlässigkeiten in den Zonen, die über dem bisher bekannten Maß liegen, von besonderem Interesse, da in diesem Falle die Menge und Zusammensetzung der Rauchinhaltsstoffe eine geringere Änderung erfahren würden.Experience has shown that the air permeability of tobacco product wrapping paper without zones or in sections where no air permeability changing zones are applied is in a range of 20 to 200 CU, while in the applied zones it is usually very low and usually depending on the construction of the cigarette 3 and 15 CU lies. The differences in the air permeabilities at the applied zones on the one hand and the base cigarette paper on the other hand change the amount and composition of the smoke ingredients compared to a cigarette paper which has not decreased in air permeability, but this is undesirable in the art. Therefore, cigarette paper with air permeabilities in the zones which are above the previously known level, are of particular interest, since in this case the amount and composition of the smoke ingredients would undergo less change.

Ziel der vorliegenden Erfindung ist es somit, die oben geschilderten Probleme zu überwinden und ein Rauchwarenumhüllungsmaterial mit gezielt veränderten Glimmeigenschaften bereitzustellen.The aim of the present invention is thus to overcome the above-described problems and to provide a tobacco product wrapping material with specifically modified glow characteristics.

Überraschenderweise haben die Erfinder der vorliegenden Erfindung festgestellt, dass die obige Aufgabe durch ein Rauchwarenumhüllungsmaterial gelöst wird, bei dem es sich um ein Basisumhüllungsmaterial handelt, auf das zumindest in diskreten Zonen eine Zusammensetzung aufgetragen ist, die ein mechanisch fragmentiertes, chemisch vernetztes Polysaccharid mit einer Teilchengröße (gewichtetes Mittel) des Polysaccharidtrockenprodukts im Bereich von 1 bis 1000 µm umfasst.Surprisingly, the inventors of the present invention have found that the above object is achieved by a smoking article wrapping material which is a base wrapping material coated on at least discrete zones with a composition comprising a mechanically fragmented, chemically crosslinked polysaccharide having a particle size (weighted average) of the polysaccharide dry product in the range of 1 to 1000 microns.

Als mechanisch fragmentiertes, chemisch vernetztes Polysaccharid kann erfindungsgemäß ein(e) einer mechanischen Fragmentierung und einer chemischen Vernetzung unterzogene(s) Stärke, modifizierte Stärke, Stärkederivat, Cellulose, Cellulosederivat, Chitosan, Chitosanderivat, Chitin, Chitinderivat, Alginat, Alginatderivat oder eine Kombination dieser Verbindungen, bevorzugt eine mechanisch fragmentierte, chemisch vernetzte Stärke, verwendet werden.As a mechanically fragmented, chemically cross-linked polysaccharide according to the invention can (e) a mechanical fragmentation and a chemically cross-linked (s) starch, modified starch, starch derivative, cellulose, cellulose derivative, chitosan, chitosan derivative, chitin, chitin derivative, alginate, alginate derivative or a combination of these Compounds, preferably a mechanically fragmented, chemically crosslinked starch, can be used.

Unter einem mechanisch fragmentierten, chemisch vernetzten Polysaccharid wird ein Polysaccharid verstanden, die durch eine Scherwirkung und anschließende Expansion unter Verwendung von beispielsweise einem Extruder zerkleinert wird, wobei dieses Polysaccharid auch verschiedensten chemischen Reaktionen wie beispielsweise einer Oxidation oder Reduktion unterworfen werden kann.By a mechanically fragmented, chemically crosslinked polysaccharide is meant a polysaccharide which is comminuted by a shearing action and subsequent expansion using, for example, an extruder, this polysaccharide Also, a variety of chemical reactions such as oxidation or reduction can be subjected.

So kann im Falle der Verwendung einer Stärke als kornförmige Ausgangsstärke beispielsweise eine native oder eine oxidativ, thermisch oder hydrolytisch abgebaute Stärke oder ein chemisch modifiziertes Ether- und Esterderivat hiervon verwendet werden.Thus, in the case of using a starch as a granular starting starch, for example, a native or an oxidatively, thermally or hydrolytically degraded starch or a chemically modified ether and ester derivative thereof can be used.

Die Herstellung ionisierter Polysaccharidderivate kann z.B. mit folgenden Kationisierungs- bzw. Anionisierungmitteln im Substitutionsbereich zwischen 0,02 - 0,1 (D.S.) erfolgen: 3-Chlor-2-hydroxypropyltrimethylammoniumchlorid, 2,3-Epoxipropyltrimethylammoniumchlorid, 3-Chlor-2-hydroxypropyldimethyldodecylammoniumchlorid, 3-Chlor-2-hydroxypropyldimethyloctadecylammoniumchlorid, Natriummonochloracetat, Essigsäureanhydrid und/oder Maleinsäureanhydrid.The preparation of ionised polysaccharide derivatives may e.g. with the following cationization or anionization agents in the substitution range between 0.02-0.1 (DS): 3-chloro-2-hydroxypropyltrimethylammonium chloride, 2,3-epoxypropyltrimethylammonium chloride, 3-chloro-2-hydroxypropyldimethyldodecylammonium chloride, 3-chloro-2-one hydroxypropyldimethyloctadecylammonium chloride, sodium monochloroacetate, acetic anhydride and / or maleic anhydride.

Zur Vernetzung werden bevorzugt 0,1 - 0,8 Gew.% eines bifunktionellen oder polyfunktionellen Mittels, berechnet auf Basis des Gewichts des Polysaccharids in Kornform, das mit wenigstens zwei freien Hydroxylgruppen der Polysaccharidmoleküle reagieren kann, mit den Stärkekörnern umgesetzt. Das einsetzbare bifunktionelle oder polyfunktionelle Mittel ist hierbei erfindungsgemäß aus der Gruppe ausgewählt, die aus aliphatischen Epoxyhalogen- oder Dihalogenverbindungen, Phosphoroxyhalogeniden, Alkalimetaphosphaten, Aldehyden, einschließlich aldehydhaltigen Harzen, Säureanhydriden und polyfunktionellen Reagenzien wie beispielsweise Cyanursäurechlorid ausgewählt.For crosslinking, preferably 0.1 to 0.8% by weight of a bifunctional or polyfunctional agent, calculated on the basis of the weight of the polysaccharide in granular form which can react with at least two free hydroxyl groups of the polysaccharide molecules, is reacted with the starch granules. According to the invention, the bifunctional or polyfunctional agent which can be used is selected from the group consisting of aliphatic epoxyhalogen or dihalogen compounds, phosphoroxyhalides, alkali metal metaphosphates, aldehydes, including aldehyde-containing resins, acid anhydrides and polyfunctional reagents such as, for example, cyanuric chloride.

Chemische Modifizierungsreaktionen können sowohl vor der Extrusion als auch im Extruder durchgeführt werden. Es kann sinnvoll sein, diese vor der Extrusion durchzuführen, weil dann nach Fragmentierung im Extruder und anschließender Dispergierung des gemahlenen Produkts im Wasser Dispersionen mit kleineren Fragmenten entstehen.Chemical modification reactions can be carried out both before extrusion and in the extruder. It may be useful to perform these before extrusion, because then, after fragmentation in the extruder and subsequent dispersion of the ground product in the water dispersions are formed with smaller fragments.

Die Stärken können vorzugsweise von Knollen- und Wurzelstärken sowie Getreidestärken als Ausgangsmaterial herrühren. Typische Knollen- und Wurzelstärken sind Kartoffelstärke, Tapiokastärke; wobei leicht verfügbare Getreidestärken Maisstärke oder Weizenstärke sind. Die verwendbare Stärke ist jedoch keineswegs auf diese Stärken beschränkt - der Vorteil der vorgenannten besteht lediglich darin, dass sie gegenwärtig auf dem Markt leicht zu beschaffen sind. Es können selbstverständlich auch Mischungen aus einer oder mehreren Stärken, ausgewählt aus der Gruppe bestehend aus nativen, oxidativ, thermisch oder hydrolytisch abgebauten sowie chemisch modifizierten Knollen-, Wurzel- oder Getreidestärken eingesetzt werden. Darüber hinaus können auch Knollen-, Wurzel- oder Getreidemehle als Rohstoff eingesetzt werden.The starches may preferably be derived from tuber and root starches as well as cereal starches as starting material. Typical tuber and root strengths are potato starch, tapioca starch; where readily available cereal starches are corn starch or wheat starch. However, the useful starch is by no means limited to these starches - the advantage of the foregoing is merely that they are readily available on the market today. It is of course also possible to use mixtures of one or more starches selected from the group consisting of native, oxidatively, thermally or hydrolytically degraded and chemically modified tuber, root or grain starches. In addition, tuber, root or grain flours can be used as raw material.

Mit Hilfe eines Extruders (sowohl Einschnecken- als auch Doppelschneckenextruder) kann, ausgehend von z.B. Kanoffielstärkekömem, eine definierte Fragmentierung erreicht werden, wobei das fertige Trockenprodukt unter 2 mm Körnung, vorzugsweise unter 1 mm, mit einer mittleren Partikelgröße von ca. 500 µm gemahlen wird.By means of an extruder (both single-screw and twin-screw extruders), starting from e.g. Kanoffielstärkekömem, a defined fragmentation can be achieved, wherein the finished dry product is ground under 2 mm grain size, preferably less than 1 mm, with an average particle size of about 500 microns.

Das mechanische und thermische Zerkleinern der vernetzten Polysaccharidkömer Führt dabei zu Fragmenten, deren Oberfläche nicht aus geordneten molekularen Bezirken besteht, sondern von losen, teilhydrolysierten Polysaccharidsträngen gebildet wird. Diese nach Quellen in Wasser "weiche" Schicht ermöglicht größere Berührungsflächen beim Anlagern an Fasern und damit festere Bindung der Polysaccharidpartikel an Fasern.The mechanical and thermal comminution of the cross-linked polysaccharide grains leads to fragments whose surface does not consist of ordered molecular districts, but is formed by loose, partially hydrolyzed polysaccharide strands. This "soft" layer after swelling in water allows for larger contact areas when attached to fibers and thus stronger binding of the polysaccharide particles to fibers.

Erfindungsgemäß kann die auf das Basisumhüllungsmaterial aufzutragende Zusammensetzung optional neben dem mechanisch fragmentierten, chemisch vernetzten Polysaccharid ein Lösemittel enthalten.According to the invention, the composition to be applied to the base wrapping material may optionally contain a solvent in addition to the mechanically fragmented, chemically crosslinked polysaccharide.

Erfindungsgemäß lassen sich als Lösemittel Wasser und/oder ein organisches Lösemittel verwenden. Als organisches Lösemittel eignen sich beispielsweise Isopropanol, Ethanol, Dimethylacetamid, N-Methylpyrrolidon und/oder N-Methylmorpholin-N-oxid.According to the invention can be used as solvent water and / or an organic solvent. Suitable organic solvents are, for example, isopropanol, ethanol, dimethylacetamide, N-methylpyrrolidone and / or N-methylmorpholine N-oxide.

Ferner kann die auf das Basisumhüllungsmaterial aufzutragende Zusammensetzung optional einen Füllstoff, eine die Brenngeschwindigkeit verzögernde Substanz und/oder eine die Brenngeschwindigkeit beschleunigende Substanz enthalten.Further, the composition to be applied to the base cladding material may optionally contain a filler, a burning rate retarding substance, and / or a burning rate accelerating substance.

Als Füllstoff lassen sich erfindungsgemäß Calciumcarbonat, Kaolin, Titandioxid, Talkum und Magnesiumoxid nennen.The filler according to the invention can be mentioned calcium carbonate, kaolin, titanium dioxide, talc and magnesium oxide.

Als die Brenngeschwindigkeit verzögernde Substanz lässt sich erfindungsgemäß Dinatriumhydrogenphosphat nennen.According to the invention, disodium hydrogenphosphate can be mentioned as the burning rate retarding substance.

Als die Brenngeschwindigkeit beschleunigende Substanz lassen sich erfindungsgemäß Alkali- oder Erdalkalimetallsalze, wie Natrium-, Kalium- und Magnesiumsalze, oder Carbonsäuresalze, wie Essigsäure-, Citronensäure-, Äpfelsäure-, Milchsäure- und Weinsäuresalze, insbesondere Citronensäuresalze, einsetzen.According to the invention, alkali metal or alkaline earth metal salts, such as sodium, potassium and magnesium salts, or carboxylic acid salts, such as acetic, citric, malic, lactic and tartaric salts, in particular citric acid salts, can be used as the burning rate accelerating substance.

Ferner kann die Zusammensetzung zusätzlich zu dem erfindungsgemäß einzusetzenden mechanisch fragmentierten, chemisch vernetzten Polysaccharid, auch eine andere, die Luftdurchlässigkeit des Basisumhüllungsmaterials verändernde Substanz enthalten. Hierbei lassen sich insbesondere nicht einer mechanischen Fragmentierung und chemischen Vernetzung unterzogene Polysaccharide, wie Stärke, modifizierte Stärke, Stärkederivate, Cellulose, Cellulosederivate, Chitosan, Chitosanderivate, Chitin, Chitinderivate, Alginat, Alginatderivate oder eine Kombination dieser Verbindungen nennen.Further, in addition to the mechanically fragmented, chemically crosslinked polysaccharide to be used in the present invention, the composition may also contain another substance which changes the air permeability of the base cladding material. In particular, this does not allow mechanical fragmentation and chemical Cross-linked polysaccharides, such as starch, modified starch, starch derivatives, cellulose, cellulose derivatives, chitosan, chitosan derivatives, chitin, chitin derivatives, alginate, alginate derivatives or a combination of these compounds.

Hierbei ist anzumerken, dass die oben genannten optionalen Zusatzstoffe für die auf das Basisrauchwarenumhüllungsmaterial aufzutragende Zusammensetzung (Füllstoff, Lösemittel, Brenngeschwindigkeit verzögernde und/oder Brenngeschwindigkeit beschleunigende Substanz) optional sind.It should be noted that the above-mentioned optional additives are optional for the composition (filler, solvent, burning rate retarding and / or burning rate accelerating substance) to be applied to the base smoking article wrapping material.

Die Anteile der jeweiligen Bestandteile in der auf das Basisrauchwarenumhüllungsmaterial aufzutragenden Zusammensetzung betragen, jeweils bezogen auf den Feststoffgehalt der Zusammensetzung, üblicherweise 20 - 100 %, vorzugsweise 45 - 100 %, speziell bevorzugt 70 - 100 % chemisch vernetztes, mechanisch fragmentiertes Polysaccharid, insbesondere Stärke, gegebenenfalls 0 bis 40 %, vorzugsweise 0 bis 20 % eines herkömmlich verwendeten Polysaccharids, gegebenenfalls 0 - 50 %, vorzugsweise 0 - 30 % Füllstoff, und optional 0 - 6 %, vorzugsweise 0 - 3 % die Brenngeschwindigkeit verzögernde und/oder beschleunigende Substanz.The proportions of the respective constituents in the composition to be applied to the base smoking article wrapping material, based in each case on the solids content of the composition, are usually 20-100%, preferably 45-100%, especially preferably 70-100% chemically crosslinked, mechanically fragmented polysaccharide, especially starch, optionally 0 to 40%, preferably 0 to 20% of a conventionally used polysaccharide, optionally 0-50%, preferably 0-30% filler, and optionally 0-6%, preferably 0-3%, of the burning rate retarding and / or accelerating substance.

Das erfindungsgemäß einzusetzende Basisumhüllungsmaterial besteht üblicherweise aus Cellulosefasern, die beispielsweise aus Flachs, Weichholz oder Hartholz erhalten werden. Um die Eigenschaften des Basisumhüllungsmaterials - falls gewünscht - zu verändern, können auch verschiedene Gemische von Cellulosefasern als Basisumhüllungsmaterial verwendet werden. Des Weiteren enthält üblicherweise das Basisumhüllungsmaterial Füllstoff und die Brenngeschwindigkeit fördernde oder beschleunigende Substanzen.The base cladding material to be used according to the invention usually consists of cellulose fibers obtained, for example, from flax, softwood or hardwood. To alter the properties of the base wrapper material, if desired, various blends of cellulosic fibers may also be used as the base wrapper material. Further, usually the base cladding material contains filler and the burning rate promoting or accelerating substances.

Das Basisgewicht des erfindungsgemäß eingesetzten Rauschwarenumhüllungsmaterials beträgt üblicherweise 15 bis 60 g/m2, vorzugsweise 18 bis 40 g/m2.The basis weight of the inventively used Rauschwarenumhüllungsmaterials is usually 15 to 60 g / m 2 , preferably 18 to 40 g / m 2 .

Gegenstand eines weiteren Aspekts der vorliegenden Erfindung ist ein Verfahren zur Herstellung eines Rauchwarenumhüllungsmaterials gemäß obigen Ausführungen, wobei das Verfahren das Applizieren einer Zusammensetzung, die ein mechanisch fragmentiertes, chemisch vernetztes Polysaccharid mit einer Teilchengröße (gewichtetes Mittel) des Trockenprodukts im Bereich von 1 bis 1000 µm umfasst, auf zumindest diskrete Zonen eines Basisrauchwarenumhüllungsmaterials umfasst.A further aspect of the present invention is a method for producing a tobacco product wrapping material as described above, the method comprising applying a composition comprising a mechanically fragmented, chemically crosslinked polysaccharide having a particle size (weighted average) of the dry product in the range of 1 to 1000 microns comprises, at least discrete zones of a base smoking article wrapping material.

Die Auftragung der Zusammensetzung auf das Basisrauchwarenumhüllungsmaterial erfolgt erfindungsgemäß üblicherweise nach der Herstellung des Basisrauchwarenumhüllungsmaterials beispielsweise mittels einer Sprüh- oder Drucktechnik, vorzugsweise einer Tiefdrucktechnik.The application of the composition to the base smoking article wrapping material is carried out according to the invention usually after the production of the base smoking article wrapping material, for example by means of a spraying or printing technique, preferably a gravure printing technique.

Diese Verfahren sind dem Fachmann auf dem einschlägigen Fachgebiet wohlbekannt und in der Patentliteratur ausführlich beschrieben, so dass hier auf eine detaillierte Beschreibung der einsetzbaren Auftragungsverfahren verzichtet werden kann.These methods are well known to those skilled in the art and described in detail in the patent literature, so that a detailed description of the applicable application methods can be dispensed with here.

In einer weiteren, besonders bevorzugten Ausführungsform der vorliegenden Erfindung kann die Auftragung der Zusammensetzung auf das Basisrauchwarenumhüllungsmaterial auch durch Applikation mittels einer Druckdüse mit einem in der Regel quer zur Laufrichtung verlaufenden Austrittsschlitz erfolgen. Bei der erfindungsgemäß einsetzbaren Druckdüse handelt es sich üblicherweise um eine Düse mit einer unter einem Vordruck stehenden Innenkammer, gesteuerten und schnell reagierenden Ventilen, die den Auslauf in einen Düsenschlitz steuern, und einer an die gewünschte Applikation angepassten Geometrie von Düse und Austrittsschlitz.In a further, particularly preferred embodiment of the present invention, the application of the composition to the base sanitary ware wrapping material can also be effected by application by means of a pressure nozzle with a discharge slot extending generally transversely to the running direction. The pressure nozzle which can be used according to the invention is usually a nozzle with an inner chamber under a pre-pressure, controlled and rapidly reacting valves which control the outlet into a nozzle slot, and a geometry of nozzle and exit slot adapted to the desired application.

Die Verwendung einer solchen Druckdüse ermöglicht entweder einen kontinuierlichen oder diskontinuierlichen Materialauftrag auf das Basisrauchwarenumhüllungsmaterial in den für die beschriebene Anwendung erforderlichen diskreten Bereichen. Für die gewünschte Applikation können auch mehrere separat steuerbare Einzeldüsen in modularer Form kombiniert sein.The use of such a pressure nozzle allows for either continuous or discontinuous application of material to the base sanitary ware wrapping material in the discrete areas required for the described application. For the desired application also several separately controllable individual nozzles can be combined in modular form.

Das Verfahren liefert bei ausreichender Viskosität des Auftragsmediums gleichmäßige Beschichtungen mit klaren und genau abgesetzten Vorder- und Hinterkanten. Da es sich um kein Sprühverfahren handelt, treten keine unerwünschten vereinzelten Spritzer des applizierten Materials außerhalb des diskreten Bereiches auf.With sufficient viscosity of the application medium, the process provides uniform coatings with clear and precisely offset front and rear edges. Since it is not a spray process, no unwanted sporadic splashes of the applied material occur outside the discrete area.

Erfindungsgemäß erfolgt die Auftragung der zu applizierenden Zusammensetzung auf das Basisrauchwarenumhüllungsmaterial gemäß einem der oben geschilderten Auftragungsverfahren zumindest in diskreten Zonen des Basisrauchwarenumhüllungsmaterials, gewünschtenfalls auch auf dem gesamten Basisrauchwarenumhüllungsmaterial.In accordance with the invention, the application of the composition to be applied to the base smoking article wrapping material according to one of the above-described application methods takes place at least in discrete zones of the base smoking article wrapping material, if desired also on the entire base smoking article wrapping material.

Die Auftragungsmenge der Zusammensetzung auf das Basisrauchwarenumhüllungsmaterial liegt üblicherweise in einem Bereich von 0,1-10 g/m2, vorzugsweise 0,3 - 2 g/m2 des Basisrauchwarenumhüllungsmaterials.The application amount of the composition to the base smoking article wrapping material is usually in a range of 0.1-10 g / m 2, preferably from 0.3 to 2 g / m 2 of the base smoking article wrapping material.

Die Auftragung wird üblicherweise so durchgeführt, dass die Auftragung auf dem erhaltenen Rauchwarenumhüllungsmaterial nicht oder kaum sichtbar ist und die behandelten Zonen ein glattes und flaches Gefüge aufweisen, das im wesentlichen demjenigen der unbehandelten Zonen entspricht.The application is usually carried out so that the application on the resulting tobacco product wrapping material is not or hardly visible and the treated zones have a smooth and flat structure, which corresponds substantially to that of the untreated zones.

Die Breite und der Abstand der aufgetragenen Zonen hängt von einer Reihe von Variablen, wie der Luftdurchlässigkeit des Basisrauchwarenumhüllungsmaterials, der Dichte der Zusammensetzung des Tabakstranges usw. ab. Die Zonen besitzen üblicherweise eine Breite von mindestens 3 mm, vorzugsweise 5 bis 10 mm.The width and spacing of the applied zones depends on a number of variables, such as the air permeability of the baseware wrap material, the density of the composition of the tobacco rod, and so forth. The zones usually have a width of at least 3 mm, preferably 5 to 10 mm.

Auch der Abstand zwischen den Zonen hängt auch von einer Reihe von Variablen ab. Üblicherweise sollte der Abstand der Zonen 1 bis 30 mm, vorzugsweise 10 bis 25 mm betragen.The distance between the zones also depends on a number of variables. Usually, the distance of the zones should be 1 to 30 mm, preferably 10 to 25 mm.

Gewöhnlich enthält das Rauchwarenumhüllungspapier (in der gerollten Form) 1 bis 3 behandelte ringförmige Zonen, die wie oben ausgeführt, beabstandet sind.Usually, the tobacco wrapper paper (in the rolled form) contains 1 to 3 treated annular zones which are spaced as stated above.

Allgemein gilt, dass das Rauchwarenumhüllungsmaterial im Bereich dieser Zonen eine verringerte Luftdurchlässigkeit aufweist, wodurch die Zigarette in diesem Bereich erlöscht, sofern eine Behinderung des freien Zutritts von Luft vorliegt. Zur Messung der Selbsterlöschungstendenz wird erfindungsgemäß ein allgemein anerkannter Standard, der NIST-Test gemäß NIST Technical Note 1436, angewendet. Ferner wird erfindungsgemäß ein auf dem allgemeinen Fachgebiet üblicher Test auf freies Glimmen durchgeführt, bei dem eine Zigarette nach Befestigung in einer Halterung unter Ermöglichung eines freien Zutritts von Luft einmal angezündet wird. Bei einem erfolgreichen Test für freies Glimmen glimmt die Zigarette nach dem Anzünden in der Halterung vollständig ab ohne zu erlöschen. Sollte dies nicht der Fall sein und die Zigarette vor dem vollständigen Abglimmen erlöschen, ist dieser Test nicht oder nur teilweise erfüllt.As a general rule, the tobacco product wrapping material has reduced air permeability in the area of these zones, which extinguishes the cigarette in this area, as long as there is a hindrance to the free access of air. To measure self-extinction tendency, a generally accepted standard, the NIST test according to NIST Technical Note 1436, is used in the present invention. Further, according to the present invention, a general glow test is performed on free glow, in which a cigarette is lighted once it has been mounted in a holder while allowing free access of air. In a successful free glow test, the cigarette glows after lighting in the holder completely without going out. If this is not the case and the cigarette is extinguished before completely glowing, this test is not or only partially fulfilled.

Durch Verwendung des erfindungsgemäß beanspruchten Rauchwarenumhüllungsmaterials wird erreicht, dass einerseits die Rauchware unbehindert an frei zutretender Luft abglimmt, andererseits aber auf Unterlagen, die ihrerseits brennbar sein können, selbst erlischt. Damit kann die Neigung zur Entstehung von Bränden durch Rauchwaren reduziert werden, sofern das Rauchwarenumhüllungsmaterial für selbsterlöschende Rauchwaren als Umhüllung eingesetzt wird und die Rauchware mit brennbaren Unterlagen wie Textilien (Teppich, Polstermöbel) im glimmenden Zustand in Berührung kommt.By using the tobacco product wrapping material claimed according to the invention it is achieved that, on the one hand, the smoking product smolders unhindered on freely admitted air, but on the other hand extinguishes itself on documents, which in turn can be combustible. This may reduce the tendency of tobacco products to smoke, provided that the smoking article wrapping material is used as a wrapper for self-extinguishing tobacco products and the smoking article comes into contact with flammable substrates such as textiles (carpet, upholstered furniture) in the glowing state.

Gegenstand eines weiteren Aspekts der vorliegenden Erfindung ist ein Rauchwarenartikel, der einen Tabakstrang, ein Rauchwarenumhüllungsmaterial, bei dem es sich um ein Basisumhüllungsmaterial handelt, auf das zumindest in diskreten Zonen eine Zusammensetzung aufgetragen ist, die ein mechanisch fragmentiertes, chemisch vernetztes Polysaccharid mit einer Teilchengröße (gewichtetes Mittel) des Trockenprodukts im Bereich von 1 bis 1000 µm und einem Phyllosilikat umfasst, und gegebenenfalls einen Filter umfasst.A further aspect of the present invention is a tobacco article comprising a tobacco rod, a tobacco wrapper material which is a base wrapper material having coated thereon at least in discrete zones a composition comprising a mechanically fragmented, chemically crosslinked polysaccharide having a particle size ( weighted average) of the dry product in the range of 1 to 1000 microns and a phyllosilicate, and optionally comprises a filter.

Beispiele:Examples: Beispiel 1example 1

Testzigaretten wurden hergestellt. Hierzu wurden auf glimmfähiges Standardzigarettenpapier Cigla 55 (Luftdurchlässigkeit 55 CU, Julius Glatz GmbH, Neidenfels) diskrete Bänder von 7 mm Breite mit einem Abstand von 18 mm mittels Tiefdruckverfahren aufgedruckt. Als Druckmedium diente dabei eine 13,5 % wässrige Suspension einer chemisch vernetzten und mechanisch fragmentierten Kartoffelstärke (F6493, Emsland-Stärke GmbH, Emlichheim). Die Luftdurchlässigkeit in den beschichteten Bereichen liegt bei 14 CU. NIST-Test und Test auf freies Glimmen werden zu 100% erfüllt.Test cigarettes were made. For this purpose, discrete bands of 7 mm width were printed by means of intaglio printing on cigarable standard cigarette paper Cigla 55 (air permeability 55 CU, Julius Glatz GmbH, Neidenfels) at a distance of 18 mm. The pressure medium used was a 13.5% aqueous suspension of a chemically crosslinked and mechanically fragmented potato starch (F6493, Emsland-Stärke GmbH, Emlichheim). The air permeability in the coated areas is 14 CU. NIST test and test for free glow are 100% fulfilled.

Vergleichsbeispiel 1Comparative Example 1

Die Testzigaretten wurden analog wie in Beispiel 1 hergestellt, wobei jedoch als Druckmedium eine 7,5 % wässrige Lösung eines äußerst filmbildungsfähigen Kartoffelstärkehydroxypropylethers (Emsize E2, Emsland-Stärke GmbH) eingesetzt wurde. Die Luftdurchlässigkeit in den beschichteten Bereichen liegt bei 14 CU, der Test auf freies Glimmen wird zu 100 %, der NIST-Test wird jedoch nur zu 63 % erfülltThe test cigarettes were prepared analogously to Example 1, except that a 7.5% aqueous solution of an extremely film-formable potato starch hydroxypropyl ether (Emsize E2, Emsland-Stärke GmbH) was used as the pressure medium. The air permeability in the coated areas is 14 CU, the test for free glow is 100%, but the NIST test is met only 63%

Beispiel 2Example 2

Die Testzigaretten wurden analog wie in Beispiel 1 hergestellt, wobei jedoch als Druckmedium eine 12,5 %ige Suspension der chemisch vernetzten und fragmentierten Kartoffelstärke aus Beispiel 1 (F6493) eingesetzt wurde. Die Luftdurchlässigkeit innerhalb der beschichteten Bereiche liegt bei 25 CU, der NIST-Test und der Test auf freies Glimmer werden zu 100 % erfüllt.The test cigarettes were prepared analogously to Example 1, except that a 12.5% strength suspension of the chemically crosslinked and fragmented potato starch from Example 1 (F6493) was used as the pressure medium. The air permeability within the coated areas is 25 CU, the NIST test and the test for free mica are 100% fulfilled.

Vergleichsbeispiel 2Comparative Example 2

Die Testzigaretten wurden analog wie in Beispiel 1 hergestellt, wobei jedoch als Druckmedium eine 8 %ige Suspension von Kartoffelstärkehydroxypropylether (Emsol K 115, Emsland-Stärke GmbH, Emlichheim) in Wasser eingesetzt wurde. Die Luftdurchlässigkeit liegt bei 37 CU, freies Glimmen wird erfüllt, der NIST-Test wurde nicht erfüllt.The test cigarettes were prepared analogously to Example 1, except that an 8% strength suspension of potato starch hydroxypropyl ether (Emsol K 115, Emsland-Stärke GmbH, Emlichheim) in water was used as the pressure medium. The air permeability is 37 CU, free glow is fulfilled, the NIST test was not fulfilled.

Claims (10)

  1. Smoking article wrapping material comprising a base wrapping material to which has been applied, at least in discrete zones, a composition comprising a mechanically fragmented, chemically crosslinked polysaccharide having a particle size defined as weighted average in the range from 1 to 1000 µm for the dry product.
  2. Smoking article wrapping material according to Claim 1, wherein the mechanically fragmented and chemically crosslinked polysaccharide comprises chemically crosslinked, mechanically fragmented starch.
  3. Smoking article wrapping material according to Claim 2, wherein the composition comprises exclusively chemically crosslinked, mechanically fragmented starch having a particle size defined as weighted average in the range from 1 to 1000 µm for the dry product.
  4. Smoking article wrapping material according to Claim 1 or Claim 2, wherein the composition further comprises a polysaccharide.
  5. Smoking article wrapping material according to any one of the Claims 1, 2 or 4, wherein the composition further comprises a filler, a burn rate retarding substance and/or a burn rate accelerating substance.
  6. Process for producing a smoking article wrapping material, which process comprises applying a composition comprising a mechanically fragmented, chemically crosslinked polysaccharide having a particle size defined as weighted average in the range from 1 to 1000 µm for the dry product to at least discrete zones of a base smoking article wrapping material.
  7. Process according to Claim 6, wherein the applying is effected by printing, preferably gravure printing, or spraying.
  8. Process according to Claim 6, wherein the applying is effected using a pressure nozzle.
  9. Process according to Claim 6 to 8, wherein the substances which are to be applied of the composition for producing discrete zones are present in water, a mixture of water and organic solvent, in an organic solvent or a mixture of organic solvents.
  10. Smoking article comprising a tobacco rod, a smoking article wrapping material comprising a base wrapping material to which has been applied, at least in discrete zones, a composition comprising a mechanically fragmented, chemically crosslinked polysaccharide having a particle size defined as weighted average in the range from 1 to 1000 µm for the dry product, and if appropriate a filter.
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CA2506302A1 (en) * 2002-11-25 2004-06-10 R.J. Reynolds Tobacco Company Wrapping materials for smoking articles
US7281540B2 (en) * 2002-12-20 2007-10-16 R.J. Reynolds Tobacco Company Equipment and methods for manufacturing cigarettes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2706143B1 (en) 2011-12-02 2016-09-28 Mudanjiang Hengfeng Paper Co., Ltd Manufacturing device and preparation method for cigarette paper having flame-retarding stripes

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US20160015080A1 (en) 2016-01-21
ATE451028T1 (en) 2009-12-15
BRPI0520618B1 (en) 2012-12-11
WO2007042077A1 (en) 2007-04-19
EP1933651A1 (en) 2008-06-25
US9993022B2 (en) 2018-06-12
US9161569B2 (en) 2015-10-20
US20090266371A1 (en) 2009-10-29
US20110180086A1 (en) 2011-07-28
JP2009511760A (en) 2009-03-19
ES2335355T3 (en) 2010-03-25
DE502005008693D1 (en) 2010-01-21
JP4940243B2 (en) 2012-05-30

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