EP3970521B1 - Segment biodégradable d'un article à fumer - Google Patents

Segment biodégradable d'un article à fumer Download PDF

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Publication number
EP3970521B1
EP3970521B1 EP21198049.5A EP21198049A EP3970521B1 EP 3970521 B1 EP3970521 B1 EP 3970521B1 EP 21198049 A EP21198049 A EP 21198049A EP 3970521 B1 EP3970521 B1 EP 3970521B1
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EP
European Patent Office
Prior art keywords
segment
web material
web
density
mass
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EP21198049.5A
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German (de)
English (en)
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EP3970521A2 (fr
EP3970521A3 (fr
Inventor
Dietmar Volgger
Stefan Bachmann
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Delfortgroup AG
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Delfortgroup AG
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Publication of EP3970521A2 publication Critical patent/EP3970521A2/fr
Publication of EP3970521A3 publication Critical patent/EP3970521A3/fr
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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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
    • 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
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/067—Use of materials for tobacco smoke filters characterised by functional properties
    • A24D3/068—Biodegradable or disintegrable
    • 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
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • 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
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
    • A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/17—Filters specially adapted for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
    • 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/02—Synthetic cellulose fibres
    • D21H13/08—Synthetic cellulose fibres from regenerated cellulose
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/22—Agents rendering paper porous, absorbent or bulky

Definitions

  • the invention relates to a segment of a smoking article, in particular a segment for cooling or filtration of the aerosol flowing in the smoking article, which is more biodegradable than segments known from the prior art and which has a favorable combination of properties in terms of draw resistance and filtration efficiency.
  • Smoking articles are typically rod-shaped articles that consist of at least two rod-shaped segments arranged one after the other.
  • One segment contains a material capable of forming an aerosol when heated, and at least one further segment serves to influence properties of the aerosol.
  • the smoking article can be a filter cigarette, in which a first segment contains the aerosol-forming material, in particular tobacco, and a further segment is designed as a filter and serves to filter the aerosol.
  • the aerosol is generated by burning the aerosol-forming material, and the filter primarily serves to filter the aerosol and to provide the filter cigarette with a defined draw resistance.
  • the smoking article can also be a so-called heated tobacco product , in which the aerosol-forming material is only heated but not burned. This reduces the number and amount of harmful substances in the aerosol.
  • a smoking article also consists of at least two, but more often of more, in particular four, segments.
  • a segment contains the aerosol-forming material, which typically includes tobacco, reconstituted tobacco, or tobacco prepared by other processes. Further, partly optional segments in the smoking article serve to forward the aerosol, cool the aerosol or filter the aerosol.
  • the segments are usually covered by a covering material.
  • Paper is very often used as a wrapping material.
  • document DE102016105235 A1 discloses a filter paper for producing filters for smoking articles, in particular filter cigarettes.
  • segment is understood to mean the segment of a smoking article, which does not contain the aerosol-forming material, but rather serves, for example, to forward, cool or filter the aerosol.
  • a first requirement is to filter the aerosol. This filtration is often selective, meaning it removes certain substances from the aerosol and thus influences the taste of the aerosol. With regard to filtration, you want to have both segments that have a particularly high filtration efficiency, for example if they are primarily used for filtration, and those that have a particularly low filtration efficiency, for example if they are primarily intended to forward or cool the aerosol.
  • Another requirement is to create a certain pulling resistance.
  • a certain resistance that is, a certain pressure difference, in order to suck in aerosol from the smoking article.
  • the segments for smoking articles are therefore often designed in such a way that they have a certain draw resistance.
  • the aerosol Immediately after its formation, the aerosol has a temperature of several 100 ° C and must be cooled to a temperature that is tolerable for the consumer as it flows through the smoking article. In the prior art, this typically occurs by dissipating heat from the aerosol.
  • the invention is based on the object of providing a segment for a smoking article that is more biodegradable than conventional segments in smoking articles and that is in any case no worse than conventional segments in terms of filtration properties, cooling effect and draw resistance.
  • Fiber-based sheet materials are suitable for segments in smoking articles to at least meet the biodegradability requirement.
  • Fiber-based web materials are all web-shaped materials made of staple fibers that can be formed into segments for smoking articles. Suitable fiber-based web materials are, in particular, paper or nonwovens.
  • web material is understood to mean, without exception, a fiber-based web material for use in smoking articles.
  • the inventors have further found that a certain combination of properties of the web material and the segment produced from it allows the various additional requirements to be met in a particularly favorable manner.
  • the segment according to the invention comprises a wrapping material and a web material that is covered by the wrapping material.
  • the sheet material comprises at least 40% pulp fibers and less than 10% non-natural polymers, the percentages being based on the mass of the sheet material.
  • the web material has a basis weight of at least 10 g/m 2 and at most 70 g/m 2 , a thickness of at least 25 ⁇ m and at most 400 ⁇ m.
  • said web material has an area of at least 20 cm 2 and at most 90 cm 2 per cm 3 volume of the segment.
  • the segment made from the web material has a density of at least 50 kg/m 3 and at most 300 kg/m 3 without the wrapping material.
  • the density of the web material ( ⁇ Web ) in kg/m 3 the density of the segment without covering material ( ⁇ Seg ) in kg/m 3 and the area of the web material in the segment per cm 3 volume of the segment (A- Web ) in cm 2 /cm 3 the following inequality must be satisfied 1300 ⁇ ⁇ Web + 5 ⁇ ⁇ Seg + 12 ⁇ A Web ⁇ 2800 .
  • the tensile resistance, filtration efficiency and cooling effect of the segment are determined by the structure and amount of web material in the segment.
  • a porous structure of the web material increases heat transfer and filtration efficiency.
  • the amount of web material in the segment also plays a role. It is specified on the one hand by the area of the web material in the segment per volume of the segment, with a higher area per volume increasing tensile resistance, filtration efficiency and heat transfer, and on the other hand by the density of the segment without covering material, with a higher density primarily increasing the tensile resistance.
  • the density of the web material and the segment also plays a role in the cooling effect of the segment because they influence the transfer of heat.
  • the sheet material in the segment of the smoking article comprises pulp fibers, with at least 40% of the mass of the sheet material being formed by pulp fibers.
  • Pulp fibers consist of natural polymers and are readily biodegradable, which results in a first advantage of the invention.
  • Another advantage essential to the invention arises from the fact that cellulose fibers are hygroscopic.
  • the aerosol in the smoking article contains water and the cellulose fibers can absorb some of this water and thus contribute to cooling the aerosol. In contrast to segments made of other materials, no more heat is dissipated, but part of the water is retained in the aerosol with the thermal energy stored in the water. This means that an aerosol reaches the consumer of the smoking article, the temperature of which is not necessarily significant is reduced, but contains significantly less heat energy and is therefore more tolerable for the consumer.
  • the proportion of cellulose fibers in the web material is therefore preferably higher and is preferably at least 60%, particularly preferably at least 90% and very particularly preferably at least 99%, in each case based on the mass of the web material.
  • the pulp fibers can be wood pulp fibers from hardwoods or softwoods, but also from other plants such as hemp, flax, sisal, jute, abaca or esparto grass and are produced using methods known from the prior art. Mixtures of pulp fibers from different origins can be used.
  • the web material should contain less than 10% of its mass of non-natural polymers.
  • Natural polymers are polymers that were obtained directly from natural raw materials without chemical modification or without changing the composition or are chemically identical to polymers obtained from nature.
  • cellulose fibers consist of natural polymers, and fibers made from regenerated cellulose are also natural polymers. In the case of cellulose acetate or polylactides, however, chemical changes have taken place so that they are non-natural polymers, and although the starting materials occur in nature, these starting materials have at least been changed in such a way that rapid biodegradability is no longer guaranteed.
  • all polymers obtained from mineral oils such as polyethylene, polypropylene, polyester or polystyrene, are not natural polymers.
  • the web material contains less than 5% of the mass of the web material non-natural polymers and more preferably less than 1% of the mass of the web material. Optimum biodegradability occurs when the web material does not contain any non-natural polymers, which is why this represents a particularly preferred embodiment.
  • the web material can contain fibers made of regenerated cellulose, such as viscose fibers, modal fibers, Lyocell® or Tencel® , the proportion of which is preferably less than 60% of the mass of the web material and particularly preferably less than 40% of the mass of the web material.
  • the amount of regenerated cellulose fibers can be selected to further optimize filtration efficiency.
  • the web material can also contain fillers, the fillers preferably being formed by calcium carbonate, magnesium oxide, magnesium hydroxide, aluminum hydroxide, titanium dioxide and silicates or mixtures thereof.
  • a particularly preferred filler is precipitated calcium carbonate.
  • the proportion of fillers based on the mass of the web material is preferably at least 0%, particularly preferably at least 5% and very particularly preferably at least 10% and preferably at most 40%, particularly preferably at most 35% and very particularly preferably at most 30%. Since fillers absorb significantly less water than cellulose fibers, increasing the proportion of fillers for the same weight per unit area of the web material can contribute to a reduction in the filtration efficiency for water. This can also influence the cooling effect of the segment.
  • the web material can also be coated.
  • the sheet material is coated with polyvinyl alcohol or a polysaccharide, which reduces the filtration efficiency for water and thus less drying of the aerosol.
  • the polysaccharide is selected from the group consisting of starch, carboxymethyl cellulose, guar, dextrin, pectin or mixtures thereof. It should be noted that polyvinyl alcohol is not a natural polymer, and the amount of non-natural polymers does not exceed 10% of the mass of the sheet material.
  • the web material can also be impregnated. In contrast to coating, with impregnation the applied composition not only remains on the surface but also penetrates significantly into the structure of the web material.
  • the web material is impregnated with glycerol or propylene glycol. These substances can increase the filtration efficiency for glycerol, which often serves as a humectant in the aerosol-forming material of the smoking article and promotes the formation of the aerosol.
  • the sheet material may also contain flavorings to influence the taste of the aerosol.
  • the flavoring substances can be contained in the web material in chemically bound form or physically bound form, for example encapsulated.
  • the flavoring substances are preferably selected from the group consisting of menthol, ethyl vanillin glucoside, vanillin and ethyl vanillin.
  • sizing agents for example AKD, ASA or resins or other additives and process aids, based on their experience, although it should be noted that the amount of non-natural polymers must be less than 10% of the mass of the web material .
  • the basis weight of the web material is between 10 g/m 2 and 70 g/m 2 and preferably between 20 g/m 2 and 60 g/m 2 and particularly preferably between 25 g/m 2 and 50 g/m 2 .
  • the basis weight can be determined according to ISO 536:2012.
  • the choice of basis weight influences the processability of the web material, in particular the process of crimping or folding, and the material required for the segment.
  • the preferred intervals combine the material expenditure with the segment properties achieved particularly well.
  • the thickness of the web material is between 25 ⁇ m and 400 ⁇ m and preferably between 35 ⁇ m and 150 ⁇ m and particularly preferably between 40 ⁇ m and 100 ⁇ m. As with basis weight, the thickness of the web material is important for processability and the preferred intervals result in a thickness that is particularly suitable for crimping or folding given the desired properties of the segment. The thickness can be determined according to ISO 534:2011.
  • the basis weight and the thickness together influence the properties of the segment made from the web material via the density.
  • the density of the web material is preferably between 100 kg/m 3 and 1200 kg/m 3 , particularly preferably between 200 kg/m 3 and 700 kg/m 3 and most preferably between 300 kg/m 3 and 600 kg/m 3 .
  • the density describes the pore structure of the web material and is therefore a key factor for filtration efficiency, heat transfer and tensile resistance.
  • the preferred intervals allow a favorable combination of draft resistance and filtration efficiency.
  • the density can be determined according to ISO 534:2011.
  • the segment contains between 20 cm 2 and 90 cm 2 of web material per cm 3 volume of the segment, preferably between 30 cm 2 /cm 3 and 80 cm 2 /cm 3 and particularly preferably between 35 cm 2 /cm 3 and 70 cm 2 /cm 3 , each based on the volume of the segment.
  • the area of web material per volume of the segment describes how densely the web material is packed in the segment. It therefore has an impact on the tensile resistance, but also on the filtration properties, heat transfer and the hardness of the segment.
  • the area of the web material can be determined, for example, by weighing the web material and calculating it from the nominal or measured basis weight of the web material.
  • the density of the segment itself, without the wrapping material is between 50 kg/m 3 and 300 kg/m 3 , preferably between 60 kg/m 3 and 250 kg/m 3 and particularly preferably between 70 kg/m 3 and 200 kg/ m3 .
  • This parameter also has a significant impact the tensile resistance, the filtration efficiency and the hardness of the segment.
  • the density of the segment is given without the wrapping material because the wrapping material has little effect on tensile resistance, filtration efficiency, or heat transfer.
  • the density of the segment can be determined mathematically.
  • the volume of the segment is first determined, which can be calculated from the diameter and length for a cylindrical segment, for example. The influence of the covering material on the diameter can be neglected.
  • the mass of the segment can be determined by weighing, with the segment being covered with the wrapping material.
  • the mass of the wrapping material can be determined from the area of the wrapping material and the nominal or measured basis weight of the wrapping material. For example, in a typical cylindrical segment, the area of the wrapping material is determined by the circumference of the segment and the overlap of the wrapping material with itself as well as the length of the segment.
  • the mass of the wrapping material is subtracted from the mass of the segment with wrapping material and its density is calculated by dividing by the volume of the segment.
  • a numerical example is detailed below.
  • This parameter Z should be at least 1300 and at most 2800, preferably at least 1350 and at most 2600 and particularly preferably at least 1400 and at most 2400. This is the only way to obtain a segment with favorable properties and, in the preferred intervals, a particularly favorable compromise between tensile resistance and filtration properties.
  • the wrapping material of the segment is preferably a paper and particularly preferably a paper with a basis weight of at least 20 g/m 2 and at most 150 g/m 2 and very particularly preferably a paper with a basis weight of at least 50 g/m 2 and at most 120 g /m 2 .
  • the density of the segment and thus the hardness are comparatively low. Therefore, wrapping materials with a basis weight of 50 g/m 2 to 150 g/m 2 can further improve the hardness of the segment.
  • the weight per unit area must not be too high, otherwise the restoring forces of the wrapping material will make it more difficult to produce a segment, in particular to bond the wrapping material to itself.
  • the bending stiffness of the covering material can also be just as important as the basis weight in order to set a favorable hardness of the segment.
  • the bending stiffness should therefore preferably be at least 0.05 Nmm and at most 0.90 Nmm, particularly preferably at least 0.10 Nmm and at most 0.80 Nmm. Bending stiffness can be measured according to ISO 5628:2012, particularly using the two-point method described in this standard. The bending stiffness may depend on the direction in which the sample was taken from the web material. The features indicated by the preferred and particularly preferred interval above are fulfilled if the bending stiffness in at least one direction is in the indicated preferred or particularly preferred interval.
  • the segment according to the invention is preferably cylindrical and preferably has a diameter of at least 5 mm and at most 9 mm, particularly preferably at least 7 mm and at most 8.5 mm.
  • the segment according to the invention is preferably at least 4 mm and at most 40 mm long, particularly preferably at least 6 mm and at most 35 mm and very particularly preferably at least 10 mm and at most 28 mm.
  • the segment according to the invention can be part of a smoking article, so that a smoking article according to the invention comprises an aerosol-forming material and the segment according to the invention.
  • the smoking article is a filter cigarette comprising at least one segment according to the invention and another segment containing tobacco.
  • the segment according to the invention is a segment of the filter of a filter cigarette.
  • the smoking article is a smoking article which contains an aerosol-forming material which is only heated up but not burned when the smoking article is used as intended, and which contains at least one segment according to the invention and a filter segment, with the at least one segment according to the invention between the aerosol-forming Material and the filter segment is arranged.
  • the at least one segment according to the invention serves primarily to cool the aerosol.
  • the segment according to the invention can be produced from web material using methods known from the prior art. Such methods typically include crimping or folding the web material, forming a continuous strand from the web material, covering the continuous strand with a covering material, and cutting the covered strand into segments of the desired size.
  • Smoking articles using the segment according to the invention can be produced using methods known from the prior art.
  • composition of the web materials is given in Table 1. All web materials were made from wood pulp; Lyocell® fibers were also used in the two web materials Nos. 22 and 23, whereby the stated percentage of 40% refers to the mass of Lyocell® fibers in the total fiber mass in the web material. Sheet materials 4-6, 12 and 13 also contained 29.5% of their mass precipitated calcium carbonate (CaCO 3 ).
  • Sheets 16-21, 24 and 25 were coated with an oxidized starch and sheets 14, 15, 18 and 19 were soaked with glycerol.
  • the web materials 20 and 21 were soaked with propylene glycol.
  • the basis weight of the web materials was determined according to ISO 536:2012 and the thickness and density according to ISO 534:2011. The results are given in Table 2, with the sheet material numbers corresponding to those in Table 1.
  • the strands made from the web materials were cut into bars each with a length of 108 mm and their mass was determined by weighing.
  • the data for the rods made from web materials 1-25 are given in Table 3, where again the numbers of the web materials correspond to those in Table 1.
  • the mass in Table 3 is the mass of a 108 mm long rod with a covering material with a basis weight of 78 g/m 2 . From the mass of the rod and the known geometry, the density was calculated as follows.
  • the thickness of the wrapping material was neglected.
  • the parameter Z is independent of the geometry, in particular the diameter and length of the rod or segment, and exclusively characterizes the internal structure of the segment.
  • the tensile resistance of the 108 mm long bars was measured according to ISO 6565. Segments with a length of 18 mm were cut from the rods and smoking articles were made from them.
  • the smoking article was a so-called heated tobacco product, in which the tobacco contained in the smoking article was only heated up.
  • the smoking article consisted of a segment with the tobacco in the direction of flow, followed by a transfer segment in which the aerosol can condense, and further followed by the segment according to the invention, which here primarily serves to cool the aerosol, and finally a filter segment.
  • the smoking articles were heated in a commercially available heater and smoked according to the method specified in ISO 3308.
  • the filtration efficiency for nicotine, water and glycerol was measured for the segments made from sheet materials 8-25.
  • the filtration efficiency for a substance is the difference between the amount of substance flowing into the segment and the amount of substance flowing out of the segment, based on the amount of substance flowing into the segment. Filtration efficiency is expressed as a percentage and was determined for nicotine, water and glycerol in this manner for an 18 mm long segment.
  • Table 4 shows the draw resistance of a 108 mm long rod and the filtration efficiencies of an 18 mm long segment for nicotine, water and glycerol.
  • the numbers of the web materials correspond to those in Table 1.
  • the segments made from the web materials 1-25 are segments according to the invention which have a parameter Z of approximately 1300 to approximately 2250.
  • the draw resistance of the 108 mm long rod is between 17.9 mmWG and 63.9 mmWG, allowing the design of segments that either transmit the aerosol and only offer a low draw resistance or that filter the aerosol and additionally allow the draw resistance of the smoking article to increase.
  • a comparison of the compositionally identical web materials 2 and 11 shows the influence of the density of the segment on the tensile resistance.
  • a segment made of web material 2 with a segment density of 73.3 kg/m 3 results in a tensile resistance (108 mm) of 23.8 mmWG, while a segment made of web material 11 with a density of 170.5 kg/m 3 produces a tensile resistance (108 mm) of 54.5 mm WG.
  • the tensile resistance is not solely determined by the density of the segment.
  • the web materials 6 and 7 have a similar basis weight, but the web material 6 contains 29.5% calcium carbonate and therefore has a significantly higher density.
  • the segments made from it have a similar density and the area of the web material per volume of the segment is also similar. Nevertheless, they differ significantly in the tensile resistance, which is 63.9 mmWG for the rod made from sheet material 6 (108 mm) and only 30.5 mmWG for the rod made from sheet material 7 (108 mm). This shows that the density of the web material itself has an independent significance for the properties of the segment made from it and is therefore also included as an essential property in the parameter Z.
  • the area of the web material per volume of the segment depends on the density of the web material and the density of the segment without covering material and is therefore also an essential property for the tensile resistance and is therefore also included in the parameter Z.
  • the segments of starch-coated webs 16-21 all exhibit lower filtration efficiencies for water than the segments of comparable webs 8, 9 and 11, while they differ little in filtration efficiencies for nicotine and glycerol. This shows that a coating with oxidized starch can be used to adjust the filtration efficiency for water.
  • the impregnation with glycerol or propylene glycol of the web materials 18-21 results in a significantly higher filtration efficiency for nicotine and glycerol in the segments made from them compared to the segments made from the web materials 16 and 17, which do not have such impregnation. Soaking allows the filtration efficiency for nicotine and glycerol to be adjusted.
  • all of the segments made from the web materials 1-25 are useful as a segment in a smoking article and can be used primarily to cool the aerosol as well as to filter the aerosol.
  • the biodegradability of all segments made from web materials 1-25 resulted directly from the components used and was not further tested. It has been shown that the segments according to the invention provide favorable properties for use in smoking articles and, in addition, excellent biodegradability is achieved.
  • a segment was made from web material 7 with a density without wrapping material of 90.4 kg/m 3 and an area of the web material per volume of the segment of 36.9 cm 2 /cm 3 .
  • the 108 mm long rod made of this sheet material only has a draw resistance of 12.3 mmWG, which is too low for use in smoking articles.
  • the hardness of the segment, despite the wrapping material of 78 g/m 2 is not sufficient for further processing into a smoking article. It should be noted that this segment meets all the requirements according to the invention with the exception of those for the parameter Z.
  • a segment was made from web material 12 with a density without wrapping material of 233.9 kg/m 3 and an area of the web material per volume of the segment of 89.9 cm 2 /cm 3 .
  • the two comparative examples not according to the invention thus show that the parameter Z is essential in order to obtain a segment with satisfactory properties.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Nonwoven Fabrics (AREA)
  • Biological Depolymerization Polymers (AREA)

Claims (15)

  1. Segment d'un article à fumer, comprenant un matériau en bande à base de fibres et un matériau d'enveloppe qui enveloppe le matériau en bande à base de fibres, le matériau en bande à base de fibres
    - comprenant au moins 40% de fibres de cellulose et moins de 10% de polymères non naturels, rapportés à chaque fois à la masse du matériau en bande,
    - ayant un grammage au moins égal à 10 g/m2 et au plus égal à 70 g/m2, et
    - ayant une épaisseur au moins égale à 25 µm et au plus égale à 400 µm,
    le matériau en bande cité ayant dans le segment une surface au moins égale à 20 cm2 et au plus égale à 90 cm2 par cm3 de volume du segment,
    le segment présentant, sans le matériau d'enveloppe, une densité au moins égale à 50 kg/m3 et au plus égale à 300 kg/m3, et
    un paramètre Z, qui est défini comme Z = pweb + 5 * pseg + 12 - Aweb, respectant l'inéquation 1300 ≤ Z ≤ 2 800,
    pweb étant la densité du matériau en bande en kg/m3,
    pseg la densité du segment sans le matériau d'enveloppe en kg/m3, et
    Aweb la surface du matériau en bande par volume du segment en cm2/ cm3.
  2. Segment selon la revendication 1, dans lequel la proportion de fibres de cellulose dans le matériau en bande est d'au moins 60%, de préférence d'au moins 90% et de façon particulièrement préférée d'au moins 99%, rapportée à chaque fois à la masse du matériau en bande.
  3. Segment selon la revendication 1 ou 2, dans lequel les fibres de cellulose sont formées de fibres de pâte de bois provenant de feuillus ou de résineux, sont obtenues à partir d'autres plantes, en particulier chanvre, lin, sisal, jute, abaca ou sparte, ou sont formées de mélanges de ceux-ci.
  4. Segment selon l'une des revendications précédentes, dans lequel le matériau en bande contient moins de 5% de sa masse en polymères non naturels, de préférence moins de 1% de sa masse en polymères non naturels, et de façon particulièrement préférée aucun polymère non naturel.
  5. Segment selon l'une des revendications précédentes, dans lequel le matériau en bande contient des fibres en cellulose régénérée, en particulier des fibres de viscose, des fibres de modal, Lyocell® ou Tencel®, leur proportion représentant de préférence moins de 60% de la masse du matériau en bande et de façon particulièrement préférée moins de 40% de la masse de matériau en bande.
  6. Segment selon l'une des revendications précédentes, dans lequel le matériau en bande contient des charges, les charges étant de préférence formées de carbonate de calcium, en particulier de carbonate de calcium précipité, d'oxyde de magnésium, d'hydroxyde de magnésium, d'hydroxyde d'aluminium, de dioxyde de titane, de silicates ou de mélanges de ceux-ci.
  7. Segment selon la revendication 6, dans lequel la proportion de charges, rapportée à la masse du matériau en bande, représente au moins 0%, de préférence au moins 5% et de façon particulièrement préférée au moins 10%, et au plus 40%, de préférence au plus 35% et, de façon particulièrement préférée, au plus 30%.
  8. Segment selon l'une des revendications précédentes, dans lequel le matériau en bande est revêtu, en particulier d'alcool de polyvinyle ou d'un polysaccharide, le polysaccharide étant de préférence sélectionné dans le groupe composé d'amidon, de carboxyméthylcellulose, de guar, de dextrine, de pectine ou de mélanges de ceux-ci, et/ou
    dans lequel le matériau en bande est imprégné, en particulier imprégné de glycérol ou de propylène glycol, et/ou
    dans lequel le matériau en bande contient des substances aromatiques, les substances aromatiques étant contenues dans le matériau en bande de préférence sous forme chimiquement liée ou forme physiquement liée, par exemple encapsulées, les substances aromatiques étant de préférence sélectionnées dans le groupe composé de menthol, de glucoside d'éthylvanilline, de vanilline et d'éthylvanilline.
  9. Segment selon l'une des revendications précédentes, dans lequel le grammage du matériau en bande est compris entre 20 g/m2 et 60 g/m2, de préférence entre 25 g/m2 et 50 g/m2, et/ou
    dans lequel l'épaisseur du matériau en bande est comprise entre 35 µm et 150 µm, de préférence entre 40 µm et 100 µm, et/ou
    dans lequel la densité du matériau en bande est comprise entre 100 kg/m3 et 1200 kg/m3, de préférence entre 200 kg/m3 et 700 kg/m3 et, de façon particulièrement préférée, entre 300 kg/m3 et 600 kg/m3.
  10. Segment selon l'une des revendications précédentes, lequel contient entre 30 cm2/cm3 et 80 cm2/cm3, de préférence entre 35 cm2/cm3 et 70 cm2/cm3 de matériau de bande par cm3 de volume du segment, et/ou dont la densité, sans le matériau d'enveloppe, est comprise entre 60 kg/m3 et 250 kg/m3, de préférence entre 70 kg/m3 et 200 kg/m3 , et/ou
    dans lequel le paramètre Z est au moins de 1350 et au plus de 2 600, de préférence au moins de 1400 et au plus de 2 400.
  11. Segment selon l'une des revendications précédentes, dans lequel le matériau d'enveloppe est formé de papier, de préférence avec un grammage au moins égal à 20 g/m2 et au plus égal à 150 g/m2 et, de façon particulièrement préférée, avec un grammage au moins égal à 50 g/m2 et au plus égal à 120 g/m2, et/ou
    dans lequel le matériau d'enveloppe présente une résistance à la flexion au moins égale à 0,05 Nmm et au plus égal à 0,90 Nmm, de préférence au moins égale à 0,10 Nmm et au plus égale à 0,80 Nmm.
  12. Segment selon l'une des revendications précédentes, le segment étant cylindrique et ayant de préférence un diamètre au moins égal à 5 mm et au plus égal à 9 mm, de façon particulièrement préférée au moins égal à 7 mm et au plus égal à 8,5 mm, et/ou le segment étant long d'au moins 4 mm et au plus de 40 mm, de préférence d'au moins 6 mm et au plus de 35 mm, et de façon particulièrement préférée d'au moins 10 mm et au plus de 28 mm.
  13. Article à fumer, comprenant un segment selon l'une des revendications précédentes et un matériau formant un aérosol.
  14. Article à fumer selon la revendication 13, dans lequel le matériau formant un aérosol est du tabac et l'article à fumer est une cigarette avec filtre, le segment cité formant de préférence le filtre ou une partie de celui-ci.
  15. Article à fumer selon la revendication 13, dans lequel le matériau formant un aérosol est, dans une utilisation conforme, uniquement chauffé mais non brûlé, et l'article à fumer contient en plus un segment de filtre, le segment étant disposé entre le matériau formant un aérosol et le segment de filtre.
EP21198049.5A 2019-01-04 2019-10-08 Segment biodégradable d'un article à fumer Active EP3970521B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102019100112.9A DE102019100112B4 (de) 2019-01-04 2019-01-04 Biologisch abbaubares Segment eines Rauchartikels
EP19787177.5A EP3700366B1 (fr) 2019-01-04 2019-10-08 Segment biodégradable d'un article à fumer
PCT/EP2019/077231 WO2020141027A1 (fr) 2019-01-04 2019-10-08 Segment biodégradable d'un article à fumer

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EP19787177.5A Division-Into EP3700366B1 (fr) 2019-01-04 2019-10-08 Segment biodégradable d'un article à fumer
EP19787177.5A Division EP3700366B1 (fr) 2019-01-04 2019-10-08 Segment biodégradable d'un article à fumer

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EP3970521A2 EP3970521A2 (fr) 2022-03-23
EP3970521A3 EP3970521A3 (fr) 2022-03-30
EP3970521B1 true EP3970521B1 (fr) 2023-12-06

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EP (2) EP3700366B1 (fr)
JP (1) JP7035173B2 (fr)
KR (1) KR102369738B1 (fr)
CN (1) CN111655052B (fr)
BR (1) BR112020005387A2 (fr)
DE (1) DE102019100112B4 (fr)
ES (2) ES2923499T3 (fr)
PH (1) PH12020500534A1 (fr)
PL (1) PL3700366T3 (fr)
WO (1) WO2020141027A1 (fr)

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Publication number Priority date Publication date Assignee Title
WO2023161411A1 (fr) 2022-02-25 2023-08-31 Jt International S.A. Article de génération d'aérosol comprenant un filtre en papier à charbon imprégné, et capsule aromatisante
ES2958821A1 (es) * 2022-07-19 2024-02-15 Miquel Y Costas & Miquel Sa Papel para filtro de cigarrillos y filtro que lo comprende
AT526354B1 (de) 2022-09-14 2024-02-15 Tannpapier Gmbh Hüll- oder Verpackungsmaterial

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5022964A (en) * 1989-06-06 1991-06-11 The Dexter Corporation Nonwoven fibrous web for tobacco filter
DE4109603A1 (de) * 1991-03-23 1992-09-24 Hauni Werke Koerber & Co Kg Verfahren und vorrichtung zum herstellen von filterstaeben fuer zigaretten
JP4361850B2 (ja) * 2004-09-16 2009-11-11 日本たばこ産業株式会社 シガレット用フィルター
US8402978B2 (en) * 2009-10-09 2013-03-26 Philip Morris Usa Inc. Coated impregnated porous filter plug
CN102821625B (zh) * 2010-03-26 2016-11-23 菲利普莫里斯生产公司 具有耐热片材的发烟制品
CN104411189A (zh) * 2012-07-13 2015-03-11 菲利普莫里斯生产公司 用于吸烟制品的可降解型过滤嘴
EP2967137B1 (fr) 2013-03-15 2021-03-03 Philip Morris Products S.a.s. Article à fumer avec élément dirigeant le flux d'air comprenant un agent modificateur d'aérosol
CN103767069B (zh) * 2014-01-29 2015-09-23 南通烟滤嘴有限责任公司 烟用皱纸丝复合滤棒及其滤嘴
WO2015178995A1 (fr) * 2014-05-23 2015-11-26 Greenbutts Llc Mèche de filtre de cigarette biodégradable et son procédé de fabrication
EP3075266A1 (fr) * 2015-04-02 2016-10-05 PT. Gudang Garam Tbk. Procédé de production d'un article générant un aérosol contenant un matériau à base de tabac reconstitué, article générant un aérosol contenant un matériau à base de tabac reconstitué et utilisation d'un article générant un aérosol contenant un matériau à base de tabac reconstitué
DE102016105235B4 (de) 2016-03-21 2019-02-14 Delfortgroup Ag Verbessertes Filterpapier für Zigarettenfilter, dessen Herstellung und Filterzigarette

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ES2923499T3 (es) 2022-09-28
PL3700366T3 (pl) 2022-08-08
KR20200086255A (ko) 2020-07-16
EP3700366B1 (fr) 2022-04-20
DE102019100112B4 (de) 2020-09-10
JP2021511778A (ja) 2021-05-13
JP7035173B2 (ja) 2022-03-14
EP3970521A2 (fr) 2022-03-23
EP3970521A3 (fr) 2022-03-30
CN111655052B (zh) 2022-06-07
US20210195939A1 (en) 2021-07-01
BR112020005387A2 (pt) 2021-08-03
KR102369738B1 (ko) 2022-03-02
CN111655052A (zh) 2020-09-11
WO2020141027A1 (fr) 2020-07-09
EP3700366A1 (fr) 2020-09-02
ES2973035T3 (es) 2024-06-18
PH12020500534A1 (en) 2020-07-20
DE102019100112A1 (de) 2020-07-09

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