EP0375844B1 - Enveloppe pour article à fumer - Google Patents

Enveloppe pour article à fumer Download PDF

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Publication number
EP0375844B1
EP0375844B1 EP89117395A EP89117395A EP0375844B1 EP 0375844 B1 EP0375844 B1 EP 0375844B1 EP 89117395 A EP89117395 A EP 89117395A EP 89117395 A EP89117395 A EP 89117395A EP 0375844 B1 EP0375844 B1 EP 0375844B1
Authority
EP
European Patent Office
Prior art keywords
paper
wrapping according
top layer
underlayer
basis weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89117395A
Other languages
German (de)
English (en)
Other versions
EP0375844A3 (en
EP0375844A2 (fr
Inventor
Walter Dipl.-Ing. Riedesser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JULIUS GLATZ GmbH
Original Assignee
JULIUS GLATZ GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JULIUS GLATZ GmbH filed Critical JULIUS GLATZ GmbH
Priority to AT89117395T priority Critical patent/ATE96624T1/de
Priority to CA 2004102 priority patent/CA2004102C/fr
Priority to AU45763/89A priority patent/AU614917B2/en
Publication of EP0375844A2 publication Critical patent/EP0375844A2/fr
Publication of EP0375844A3 publication Critical patent/EP0375844A3/de
Application granted granted Critical
Publication of EP0375844B1 publication Critical patent/EP0375844B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/84—Paper comprising more than one coating on both sides of the substrate

Definitions

  • the invention relates to a wrapper for smokers' articles, in particular for self-extinguishing cigarettes, made from cellulose, containing fillers and optionally glow salts.
  • a cigarette is known from EP-A-133 575, the tobacco cylinder of which is coated with two different papers. Both papers are made of cellulose and have approximately the same basis weight of 20 to 25 g / m2.
  • the porosity of the inner paper is about 1 CU (Coresta Unit), that of the outer paper about 55 CU.
  • the inner paper is filled with 14% by weight titanium dioxide, the outer paper with 30% by weight calcium carbonate and additionally with 6% by weight anhydrous potassium citrate.
  • the low porosity of the base paper is achieved by brushing or soaking with suitable water-soluble, film-forming materials, for example methyl cellulose, carboxymethyl cellulose, starch, chemically modified starch, guar gum, sodium alginate, dextrin, gelatin and the like.
  • a cigarette with this wrapper should go out on its own within a few minutes as soon as it comes into contact with objects - upholstery, carpets, furniture - which prevent the free access of oxygen to the ember cone.
  • EP-A-133 575 also describes solutions with only one paper. Acting it is again a lightweight paper with approx. 20 to 25 g / m2 basis weight and a porosity of 1 to 4 CU, filled with titanium dioxide and / or calcium carbonate as follower and 1.7 to 9% by weight of anhydrous potassium citrate as glowing salt.
  • Another advantageous property of the self-extinguishing smoking articles is that the so-called sidestream smoke, which rises from the ember cone during the pause between two puffs, is reduced.
  • This sidestream smoke is largely responsible for so-called passive smoking. It would be desirable to suppress the formation of sidestream smoke entirely; nevertheless, its creation is inevitable, since smoking articles require a constantly burning ember cone for reasons that are easy to see.
  • smoking articles with reduced sidestream smoke are known, which are wrapped with two papers.
  • the inner layer is a highly porous cellulose fiber paper with embedded, finely pulverized carbon, whereby alkaline earth metal carbonates can optionally be added.
  • the outer layer is a normal cigarette paper.
  • the carbon-filled inner paper may or may not be taped; if necessary, it is held by the outer paper. In this proposal, the carbon in the inner paper is to adsorb the sidestream smoke produced so that it is not visible without slowing down the burning of the tobacco.
  • DE-A-37 21 204 also discloses cigarette papers which contain an essentially water-insoluble and thermally stable filler in the cellulose starting material, which provides a surface area in the web of at least 80 m 2 per square meter of the web under smoke conditions and up to approximately Contains 15 wt .-% of an alkali metal salt.
  • the porosity is in the range from 5 to 30 CU.
  • a cigarette is known from US-A-3 633 589, which is wrapped with two papers.
  • the cover paper is a conventional, porous cigarette paper with good burning properties and ash qualities.
  • the base paper consists of a practically non-porous paper.
  • the inner paper burns more slowly than cover paper and tobacco. . With every train, the air must pass through the embers. As a result, the mainstream smoke should contain little air, create a rich, unadulterated feeling of smoke and thus reduce the tendency for inhalation by smokers. Secondary flow smoke or self-extinguishing are described in this document not mentioned.
  • the coverings have unattractive optical properties, be it that they are colored gray or brown, that they form gray or even black ash, that there is no closed ash hose and / or that condensate or tar penetrate and form unsightly brown spots .
  • the present invention has for its object to provide a wrapper for smoking articles, in particular for self-extinguishing cigarettes, which can be applied to the tobacco in a single operation, shows no condensate penetration, forms a stable, white ash hose and the transfer of degradation products in the Wrapping chemicals provided in the mainstream smoke largely prevented.
  • top layer and bottom layer must also be coordinated with one another to the extent that perfect processing in the paper machine etc. is possible.
  • the shrinking behavior of the top and bottom layers must be coordinated so that a wrinkle-free bond is possible, that the finished paper does not roll or throw and can be easily wrapped around the tobacco rod.
  • an advantageous further development is to apply a third paper layer as counter lamination to the free surface of the lower layer. At least the mechanical properties of the third paper layer should correspond approximately to those of the cover layer.
  • the cover layer has a weight per unit area of 30 to 40 g / m2, preferably approx. 35 g / m2, the underlayer preferably 8 g / m2.
  • the underlayer can therefore be kept very thin in comparison to the top layer, so that it practically does not impair the good glow properties of the top layer. Self-extinguishing is ensured by the fact that the tobacco burning zone behind the ember cone is depleted of oxygen.
  • the air permeability of the cover layer is preferably greater than 40 CU, which facilitates processing on the paper machine, that of the underlayer is less than 2 CU, which improves self-extinguishing. Ultimately, however, the pore-poor to non-porous nature of the paper composite is decisive.
  • the absorbency of the top layer given as the preferred value, of 12 ⁇ 2 mm / 10 min, measured according to the clamping method in accordance with DIN 53106, also serves for perfect processing on the paper machine, as does the value given for the roughness of the top layer, 50 ⁇ 10 mm. Seconds.
  • the invention proposes either to fill the underlayer with tobacco dust and / or flavoring agents, or to introduce these substances between the top layer and the underlayer before they are laminated on the paper machine. Both methods can also be combined.
  • Cover paper and base paper are preferably cellulose papers, the cellulose being able to be obtained from annual plants such as flax, hemp or esparto, from annual plants such as pine, birch or eucalyptus or from mixtures of the aforementioned fibers.
  • Fig. 1 shows a section through a cigarette with a two-layer wrapper.
  • the paper enveloping a tobacco rod 4 has a top layer 1 and a bottom layer 2 and was produced by wet lamination on the paper machine.
  • the properties of such a cigarette result from the following Embodiments.
  • Fig. 2 shows a section through another cigarette with a three-layer wrapper.
  • the tobacco rod 4 is coated with a paper with a top layer 1 and a bottom layer 2.
  • the bottom layer 2 is backed with a third paper layer 3 in order to prevent the paper from being thrown or rolled.
  • the mechanical properties of the third paper layer 3 should roughly match those of the cover layer 1.
  • tobacco dust, flavorings and other ingredients can be introduced.
  • a wet laminate on the paper machine produced a paper composite with the following properties: Basis weight 38 g / m2 Bulk density 0.67 g / cm3 Air permeability approx. 10 CU.
  • the self-extinguishing time is approximately 300 seconds.
  • a paper laminate with the following properties was produced from it by wet lamination on the paper machine: Basis weight 45 g / m2 Bulk density 0.67 g / cm3 Air permeability 7 CU
  • the self-extinguishing time is approximately 150 seconds.
  • a paper laminate with the following properties was produced from it by wet lamination on the paper machine: Basis weight 38 g / m2 Bulk density 0.79 g / cm3 Air permeability 1.5 CU
  • the self-extinguishing time is approximately 120 seconds.
  • a paper laminate with the following properties was produced from it by wet lamination on the paper machine: Basis weight 52 g / m2 Bulk density 0.76 g / cm3 Air permeability 0 CU.
  • the self-extinguishing time is approximately 90 seconds.
  • the time until the ember cone goes out can be influenced by the diameter, the degree of stuffing and the type of tobacco.
  • the condensate, nicotine and carbon monoxide values in the mainstream smoke are controlled by the tobacco mixture, the tobacco weight, suitable cigarette filters and ventilation mouth sticks.

Landscapes

  • Paper (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Claims (14)

  1. Enveloppe pour article à fumer, en particulier pour cigarettes auto-extinguibles, fabriquée en cellulose, contenant des charges et, le cas échéant, des sels combustibles, caractérisée en ce qu'elle est composée d'au moins deux couches en papier contrecollées sur une machine à papier ou une machine comparable - couche de couverture (1) sous-couche (2) - la couche de couverture (1) présentant les propriétés suivantes: - grammage 20 à 60 g/m² - densité brute 0,5 à 0,9 g/cm³ - perméabilité à l'air 10 à 250 CU (Coresta Units) - teneur en charges 10 à 60 % - teneur en sels combustibles 0 à 5 %
    et la sous-couche (2) présente les propriétés suivantes: - grammage 6 à 12 g/m² - densité brute 0,7 à 1 g/cm³ - perméabilité à l'air 0 à 12 CU (Coresta Units)
  2. Enveloppe selon la Revendication 1, caractérisée en ce que la couche de couverture (1) présente un grammage de 30 à 40 g/m², de préférence d'à peu près 35 g/m².
  3. Enveloppe selon la Revendication 1 ou 2, caractérisée en ce que la couche de couverture (1) présente une perméabilité à l'air supérieure à 40 CU.
  4. Enveloppe selon la Revendication 1, 2 ou 3, caractérisée en ce que la couche de couverture (1) présente une teneur en charges comprise entre 30 et 45 %, de préférence d'à peu près 35 %.
  5. Enveloppe selon la Revendication 4, caractérisée en ce que les charges sont composées de carbonate de calcium et/ou de magnésium.
  6. Enveloppe selon l'une de Revendications 1 à 5, caractérisée en ce que la capillarité de la couche de couverture (1) est de 12 ± 2 mm/10 min, mesurée selon la méthode de Klemm, selon DIN 53106.
  7. Enveloppe selon l'une des Revendications 1 à 6, caractérisée en ce que la rugosité de la couche des couverture (1) est de 50 ± 10 Bekk-secondes.
  8. Enveloppe selon l'une des Revendications 1 à 7, caractérisée en ce que la sous-couche (2) contient jusqu'à 6 % de charge et jusqu'à 2 % de sels combustibles.
  9. Enveloppe selon l'une des Revendications 1 à 8, caractérisée en ce que la sous-couche (2) présente un grammage de 8 g/m².
  10. Enveloppe selon l'une des Revendications 1 à 9, caractérisée en ce que la sous-couche (2) présente une perméabilité à l'air comprise entre 0 et 2 CU.
  11. Enveloppe selon l'une des Revendications 1 à 10, caractérisée en ce que la sous-couche (2) est remplie de poussière de tabac et/ou de substances aromatiques.
  12. Enveloppe selon l'une des Revendications 1 à 11, caractérisée en ce que la poussière de tabac et/ou les substances aromatiques sont insérées entre le couche de couverture (1) et la sous-couche (2).
  13. Enveloppe selon l'une des Revendications 1 à 12, caractérisée en ce que la sous-couche (2) est contre-collée avec une troisième couche en papier (3).
  14. Enveloppe selon l'une des Revendications 1 à 13, caractérisée en ce qu'elle est composée en pâte de lin, de chanvre, d'alfa, de sulfate de pin et/ou d'eucalyptus.
EP89117395A 1988-11-30 1989-09-20 Enveloppe pour article à fumer Expired - Lifetime EP0375844B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT89117395T ATE96624T1 (de) 1988-11-30 1989-09-20 Umhuellung fuer raucherartikel.
CA 2004102 CA2004102C (fr) 1988-11-30 1989-11-29 Enveloppe d'articles a fumer
AU45763/89A AU614917B2 (en) 1988-11-30 1989-11-30 Non-porous cigarette paper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3840329 1988-11-30
DE3840329A DE3840329A1 (de) 1988-11-30 1988-11-30 Umhuellung fuer raucherartikel

Publications (3)

Publication Number Publication Date
EP0375844A2 EP0375844A2 (fr) 1990-07-04
EP0375844A3 EP0375844A3 (en) 1990-12-12
EP0375844B1 true EP0375844B1 (fr) 1993-11-03

Family

ID=6368158

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117395A Expired - Lifetime EP0375844B1 (fr) 1988-11-30 1989-09-20 Enveloppe pour article à fumer

Country Status (4)

Country Link
US (1) US4984589A (fr)
EP (1) EP0375844B1 (fr)
DE (2) DE3840329A1 (fr)
ES (1) ES2047080T3 (fr)

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US4805644A (en) * 1986-06-30 1989-02-21 Kimberly-Clark Corporation Sidestream reducing cigarette paper

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DE58906110D1 (de) 1993-12-09
EP0375844A3 (en) 1990-12-12
US4984589A (en) 1991-01-15
ES2047080T3 (es) 1994-02-16
EP0375844A2 (fr) 1990-07-04
DE3840329A1 (de) 1990-06-07

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