WO2021121839A1 - Matériau de filtre et/ou matériau de remplissage pour embouts destinés à être utilisés avec des produits à fumer ou des produits hnb, embouts et filtres de cigarette comprenant un tel matériau de filtre et/ou matériau de remplissage, et procédé de fabrication d'un tel matériau de filtre et/ou matériau de remplissage - Google Patents

Matériau de filtre et/ou matériau de remplissage pour embouts destinés à être utilisés avec des produits à fumer ou des produits hnb, embouts et filtres de cigarette comprenant un tel matériau de filtre et/ou matériau de remplissage, et procédé de fabrication d'un tel matériau de filtre et/ou matériau de remplissage Download PDF

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Publication number
WO2021121839A1
WO2021121839A1 PCT/EP2020/082495 EP2020082495W WO2021121839A1 WO 2021121839 A1 WO2021121839 A1 WO 2021121839A1 EP 2020082495 W EP2020082495 W EP 2020082495W WO 2021121839 A1 WO2021121839 A1 WO 2021121839A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
filler material
cellulose acetate
acetate filaments
hollow
Prior art date
Application number
PCT/EP2020/082495
Other languages
German (de)
English (en)
Inventor
Dieter Mann
Martin Moser
Uwe SCHÄFFNER
Eckart SCHÜTZ
Original Assignee
Cerdia International 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 Cerdia International GmbH filed Critical Cerdia International GmbH
Priority to KR1020227024289A priority Critical patent/KR20220116495A/ko
Priority to JP2022538457A priority patent/JP7407944B2/ja
Priority to CN202080087353.3A priority patent/CN114867370A/zh
Priority to US17/786,185 priority patent/US20230017871A1/en
Priority to BR112022011737A priority patent/BR112022011737A2/pt
Priority to EP20808384.0A priority patent/EP4076045B1/fr
Publication of WO2021121839A1 publication Critical patent/WO2021121839A1/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
    • A24D3/062—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
    • A24D1/00—Cigars; Cigarettes
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0208—Cutting filter materials
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0212—Applying additives to filter materials
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0212—Applying additives to filter materials
    • A24D3/0216—Applying additives to filter materials the additive being in the form of capsules, beads or the like
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0212—Applying additives to filter materials
    • A24D3/022—Applying additives to filter materials with liquid additives, e.g. application of plasticisers
    • 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
    • A24D3/061—Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
    • 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
    • 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
    • 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
    • A24D3/18—Mouthpieces for cigars or cigarettes; Manufacture thereof
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate

Definitions

  • the present invention relates to a filter and / or filler material for mouthpieces for use with tobacco products or FINB products and the use of such a filter and / or filler material in mouthpieces for tobacco products or in cigarette filters or in mouthpieces for HNB products. According to another aspect, the invention relates to a method for producing such a filter and / or filler material.
  • Tobacco products within the meaning of the present invention relate to classic tobacco products, in particular cigarettes, but also pipes and marijuana products and so-called heat-not-burn (HNB) products, vaping products and so-called hybrid products.
  • HNB heat-not-burn
  • mouthpieces for the use of smoking products have different functions.
  • mouthpieces can serve as a filter device in order, for example, to pull out harmful components, such as condensed substances such as tar, as well as particulate matter entrained by the smoke stream, from a tobacco smoke stream.
  • This filter function is used in particular in classic tobacco applications.
  • a corresponding The mouthpiece can be designed as an integral part of a cigarette or a cigarillo and thus form a "tip" on the cigarette or on the cigarillo.
  • mouthpieces are replaceable devices, such as replaceable filter elements that can be removed after use. Such mouthpieces are received in corresponding holders, for example in a cigarette holder or in a pipe mouthpiece.
  • a mouthpiece designed as an integral part of a cigarette is the cigarette filter.
  • the cigarette filter is intended to prevent the proportion of harmful substances such as condensate and gases in the smoke of the cigarette. In addition, the smoke is perceived as somewhat milder or more pleasant by a large proportion of smokers through the filter.
  • the filter In the case of a classic filter cigarette, the filter is wrapped in a filter wrapping paper and is coupled to the tobacco rod with what is known as tipping paper, with most industrially manufactured cigarettes being provided with a filter. Do-it-yourselfers can buy these in tobacco shops.
  • filter materials Numerous types of filter materials have already been used, particularly in order to reduce the content of the constituents of tobacco smoke before it reaches the smoker's respiratory system. In addition to removing the harmful components in large quantities, a satisfactory filter must also be effective without undesirably hindering the passage of air or smoke through the filter, so that too strong a draft is required. When used in tobacco smoke filters, however, the filter material must not change the taste of the tobacco smoke by adding its own taste.
  • Another essential factor in the production of a satisfactory tobacco smoke filter is that its production is not too expensive so that the final price of the smoking article in which the filter is used does not rise too high.
  • the present invention relates less to filter materials for the classic tobacco applications described above, but in particular to filter and / or filling materials for mouthpieces for the use of tobacco products, these filter and / or filling materials in particular having other functions than just a filter function.
  • a filter function of the mouthpieces is by no means in the foreground. This applies, for example, to heat-not-burn products ("HNB products”), which have enjoyed increasing popularity in recent years.
  • HNB products heat-not-burn products
  • a portion of processed tobacco is heated by a heat source during use, but not burned volatile tobacco constituents such as flavorings, nicotine, glycerin and water are carried away by the air drawn by the user through the HNB product, and as the released substances cool, an aerosol is formed which is inhaled by the user.
  • HNB products usually include a device consisting of a power supply that supplies a heating element and a separate consumer item consisting of a portion of processed tobacco, a support element, such as a tubular cellulose acetate segment, a so-called cooling element downstream in the flow direction, for example in Shape of a crimped polylactide film, which is gathered into a cylinder with many axial channels, as well as a mouth-side filter.
  • a device consisting of a power supply that supplies a heating element and a separate consumer item consisting of a portion of processed tobacco, a support element, such as a tubular cellulose acetate segment, a so-called cooling element downstream in the flow direction, for example in Shape of a crimped polylactide film, which is gathered into a cylinder with many axial channels, as well as a mouth-side filter.
  • the consumables are placed in the device before use in such a way that the heating element heats the portion of tobacco when the HNB product is used.
  • IQOS / HEETS product For example, in a so-called IQOS / HEETS product from Philip Morris, the tobacco portion is impaled on a heating sheet in the device.
  • An IQOS / HEETS product is an IQOS device marketed by Philip Morris with the associated HEETS consumable.
  • the HEETS consumable is a heat-not-burn product in which tobacco is simply heated instead of being burned.
  • a competitor product from BAT heats the tobacco from the outside, the so-called cooling element being replaced by a tube.
  • a portion of processed tobacco is heated by a heat source during use, but not burned.
  • volatile tobacco products evaporate components such as flavorings, nicotine, glycerine and water are carried away by the air drawn by the user through the HNB product, and as the released substances cool down, an aerosol is formed which is inhaled by the user.
  • the consumables known for this application have the disadvantage that their mouth-side filters can heat up considerably due to their proximity to the heating element and due to the hot steam generated when the HNB product is used.
  • an aerosol former is first evaporated (propylene glycol, glycerine), then an aerosol is created by cooling. This aerosol is passed through a serving of processed tobacco and inhaled by the consumer. In such applications, too, the mouthpiece has the particular function of protecting the user-side end against heating that is unpleasant for the user.
  • HNB consumables In contrast to conventional tobacco products in which tobacco is burned, it may be desirable for HNB consumables that the elements downstream of the heated tobacco portion in the flow direction, such as cooling element and mouth-side filter, only have a low filtering effect with regard to condensed components such as tar have, since these smoke components can arise in much smaller quantities.
  • the materials required to form a mouthpiece for tobacco products must therefore be adapted and in particular adaptable to the physical properties of the smoke (temperature, flow profile, etc.) and to the chemical composition.
  • target parameters that must be set or fulfilled by a suitable choice and configuration of the mouthpiece materials. In particular, these are the following target parameters, which are briefly discussed below:
  • the hardness of the filter rod is an important target criterion for cigarette filters. It is usually given as the so-called Filtrona hardness.
  • the Filtrona hardness is determined by placing a cylindrical rod 12 mm in diameter with its flat Chen face is pressed vertically with a load of 300 g onto a horizontally positioned filter rod. The ratio of the compressed diameter to the initial diameter previously determined by the first contact gives the percentage of the Filtrona hardness.
  • Filtrona hardness is only measured on a filter, but not on the underlying filter (raw) material.
  • the triacetin sprayed on all cigarette filters affects the Filtrona hardness.
  • the minimum limit for Filtrona hardness is around 88% and is based on market requirements.
  • the Filtrona hardness of the cigarette filter can preferably be set to about 88% to 95%, in particular about 90% to 93%.
  • the Filtrona hardness is essentially determined by the fiber weight per unit volume.
  • the filament titer has only a minor influence on the Filtrona hardness.
  • a higher Filtrona hardness is achieved by using a thicker filter wrapper paper or a thicker tipping paper.
  • a tipping paper is a paper with which either several filter elements are coupled to one another or filter elements are coupled to the tobacco rod.
  • increasing the Filtrona hardness by using a thicker filter wrap paper or tipping paper has economic disadvantages as this approach is expected to be more expensive.
  • the so-called "hot collapse” is related to the Filtrona hardness, in which the filter hardness decreases during smoking. This can occur in particular if the filter of a classic cigarette warms up in the presence of moisture during one of the last puffs. This also applies to FINB products this undesirable effect can occur.
  • the mouthpiece material In addition to a Filtrona hardness that is as constant and high as possible when a smoking product is used, the mouthpiece material should also exhibit a filtration performance that has been determined or can be determined in advance.
  • the filtration performance in relation to condensed matter (droplets, particles) is also known as condensate or tar of interest in the case of conventional tobacco products and HNB products, since a large number of substances with negative health relevance can be found in the condensed matter.
  • the filtration capacity is selected in order to adjust the "delivery" of the cigarette (content of smoke ingredients in the main stream smoke) Determination limited. Below the legal limit, the "delivery" can be adapted to the preferences of the consumers.
  • the filter (in addition to setting the "delivery") is used to set the draw resistance of the cigarette.
  • the draft resistance contribution of the mouth-side filter (mouthpiece) should be as low as possible, since the other components of the HBN device, in particular the heated tobacco portion and the device, already have a high draft resistance contribution.
  • a low draw resistance of the filter (mouthpiece) leads to degrees of freedom in the other components of the HBN device, which is desirable.
  • the draw resistance and the filtration performance can be reduced by reducing the filter length. But as soon as the filter length becomes smaller than the filter diameter, the processability becomes problematic. Also a shorter filter leads to a shorter cooling section, which is problematic for the heat balance.
  • the draw resistance and the filtration performance can be reduced by reducing the fiber weight in the filter material per volume and / or the total denier.
  • this has the disadvantage that the Filtrona hardness decreases and, under certain circumstances, the minimum hardness can no longer be achieved.
  • the draw resistance and the filtration performance can be reduced by increasing the filament denier.
  • the filtration performance and the draw resistance are reduced as the filament titre increases, which is desirable for FINB products compared to conventional products. Since, as stated above, the Filtrona hardness hardly depends on the filament titer, the hardness is not negatively influenced either.
  • the consumer prefers a mouthpiece with a flat, white cross-sectional area on the mouth side.
  • the target parameter it should be noted that the consumer prefers a mouthpiece with a flat, white cross-sectional area on the mouth side.
  • products that are formed into a tube on the mouth side.
  • the smoking temperature is not a problem with conventional products today.
  • the smoking temperature is noticeably high and uncomfortably high for some consumers.
  • commercial HNB products require cooling to cool the evaporated components so that an aerosol is first created from the gaseous components.
  • the distance from the heating element to the mouth of the HNB article is certainly the most important parameter for cooling the aerosol.
  • the cooling element can be in the form of a crimped polylactide film or in the form of a cardboard tube, whereby - in addition to cooling - this element downstream of the tobacco portion and the support element also functions as a placeholder, which gives mechanical stability.
  • mouthpiece materials must meet the target parameter cost-effectiveness. In particular, there is a need for suitable mouthpiece materials that can be produced with the least possible amount of material and with the lowest possible process costs.
  • HNB products as well as conventional smoking articles, generally have the disadvantage that the inhaled aerosol is absorbed by the user at a high temperature. This is sometimes uncomfortable for the user.
  • the task of the mouthpiece materials is to cool the aerosol with the lowest possible filtration performance.
  • filter materials or materials for the mouthpiece must be compared to filter materials for king-size cigarettes - offer reduced filtration performance and increased cooling and improved haptic properties (firm, but not too hard handle).
  • filter materials or materials for the mouthpiece must be compared to filter materials for king-size cigarettes - offer reduced filtration performance and increased cooling and improved haptic properties (firm, but not too hard handle).
  • a low filtration rate is aimed for. If only the amount of filter material is reduced for this purpose, the filter hardness will eventually become insufficient.
  • Filters for slim or ultra-slim cigarettes also have significantly higher draw resistance than king-size filters with the same fiber density, which is generally not desired.
  • the present invention is based on the task of specifying a material which is suitable for a wide range of applications in tobacco products.
  • the present invention is based on the object of providing a filter material with low draw resistance and low filtration performance, with the filter material being able to achieve a sufficiently high Filtrona hardness that is as constant as possible when used in smoking goods, and the filter material can nevertheless be produced particularly economically .
  • the filter material should be suitable for producing a filter with a uniform, white and flat face on the mouth side.
  • the filter material shows a selective filtration effect on phenols.
  • the filter material should in particular be suitable for reliably cooling a heated, particle-laden gas so that the temperature of the gas, aerosol or vapor absorbed by a smoking article can be reduced.
  • the material should be suitable so that when the material is used as a filter material for slim or ultra-slim cigarettes, in particular, an adjustable and, in particular, reduced draw resistance compared to king-size filters can be achieved.
  • the invention relates in particular to a material for forming a mouthpiece for tobacco products, the material having a filler material based on cellulose acetate filaments which are at least partially in the form of hollow-shaped cellulose acetate filaments.
  • the filler material which is partially designed as hollow cellulose acetate filaments, has a lower density and a higher fill value than classic cellulose acetate filaments, which are not hollow-shaped and which are usually used in cigarette filters.
  • hollow fiber used herein is to be understood in particular as a preferably cylindrical fiber which has one or more continuous flea spaces in cross section.
  • the hollow fibers are preferably at least partially crimped.
  • the invention is not limited to crimped flea fibers, but relates to it also non-crimped fibers or their use.
  • the hollow fibers are at least partially designed as multi-lumen flea fibers.
  • multi-lumen flea fibers are significantly more kink-resistant, which means that particularly high Filtrona hardnesses can be achieved without increased material compression.
  • the term "Filtrona hardness” used herein is to be understood as the filter hardness determined according to the Filtrona principle.
  • the filter hardness is determined by pushing a cylindrical rod 12 mm in diameter with its flat end face vertically with a load of 300 g
  • the ratio of the compressed diameter to the initial diameter previously determined by the first contact gives the percentage of the Filtrona hardness.
  • the hollow-shaped cellulose acetate filaments at least partially have a trilobal, ie three-armed star-shaped cross-sectional shape.
  • Such a cross-sectional shape is advisable when the cellulose acetate filaments are to have the largest possible specific surface area, for example in order to enable a high filtration capacity with the economical use of raw materials at the same time.
  • other cross-sectional shapes are also conceivable for the hollow cellulose acetate filaments, such as a square cross-sectional shape.
  • the filter and / or filler material of the present invention is inexpensive to manufacture and can be processed alone or with classic cellulose acetate filaments that are not hollow-shaped to form a filter rod with suitable tensile resistance and optimized filter properties.
  • the filter and / or filler material according to the invention has a filler material based on cellulose acetate filaments which are at least partially designed as hollow cellulose acetate filaments, a low tensile resistance and a low filtration performance can be achieved, since the at least partially designed as hollow cellulose acetate filaments Fila elements of the filter and / or filler material have a small outer surface based on the total fiber volume. It is preferred here that the filaments of the filter and / or filler material, which are at least partially designed as hollow cellulose acetate filaments, have a cross-section that is as round as possible.
  • the filter and / or filler material according to the invention is suitable for making a filter with a uniform, white and flat face on the mouth side, with a selective filtration effect on phenols also being feasible.
  • filter rods especially for cigarettes, can be produced which have demonstrably to be emphasized properties regarding specific retention phenomena with regard to the discussion regarding smoking and health.
  • a cellulose acetate filter for example, filters nitrosamines and phenols that are harmful to health far more efficiently than condensate and nicotine.
  • the smoke taste of the tobacco mixture customary today such as "American Blend", “German Blend” and “Virginia” in combination with a filter rod made of cellulose acetate, is judged to be the most pleasant by the smoker.
  • Another advantage of a filter rod that should not be underestimated Cellulose acetate is due to the optical homogeneity of the cut surfaces of the filters.
  • the filter and / or filler material according to the invention is at least partially formed from hollow cellulose acetate filaments which serve as filler material, the tensile resistance and the filtration performance can be varied over a wide range in filter rods made from the material according to the invention.
  • a filter material which consists at least in some areas of hollow cellulose acetate filaments has an improved thermal cooling effect. It was found that by using hollow cellulose acetate filaments as filler material, a very low filter effect, ie retention effect, for the suspended matter and gases to be removed can still be achieved. It is assumed that this effect is achieved in that the hollow-shaped cellulose acetate filaments change the surface or the flow of the gas to be cleaned or the air in such a way that the suspended matter that may be present in the gas or in the air is hardly retained . Another reason could be that through the use of hollow cellulose acetate filaments a different, particularly advantageous surface structure of the filter material can be achieved.
  • the filter and / or filler material according to the invention also has the advantage that it enables, in particular, adjustable cooling of a heated particle-laden gas (in particular aerosol), so that the temperature of the aerosol gas absorbed by the user of a smoking article or Fl NB product or steam can be reduced in a targeted manner.
  • adjustable cooling of a heated particle-laden gas in particular aerosol
  • the desired cooling effect can be adapted to the specific application.
  • the effective filtration surface is by no means maximized, since the hollow cellulose acetate filaments in the filter and / or filler material are not flowed through.
  • the hollow cellulose acetate filaments can thus have kinks that close the lumen of the hollow cellulose acetate filaments without this having an effect on the performance of the filter and / or filler material according to the invention in terms of the set target parameters.
  • the hollow-shaped cellulose acetate filaments designed as flea fibers do not have to be hollow throughout, but can also be partially closed by kinks. They can also deviate from an ideal circular shape.
  • the hollow-shaped Cellulo seactetatfil noir of the filter and / or filler material serve on the one hand as carrier material and on the other hand as cooling material. Because the hollow-shaped cellulose act filaments also serve as a carrier material, they are particularly compact Mouthpieces can be realized in which the dimensions of the smoking article do not have to be increased.
  • the filter and / or filler material has areas with hollow cellulose acetate filaments and non-hollow cellulose acetate filaments that are adjacent to one another in the longitudinal direction of the mouthpiece.
  • a mixture of hollow and non-hollow cellulose acetate filaments would also be conceivable.
  • the hollow-shaped and non-hollow-shaped cellulose acetate filaments can be arranged in layers and then folded. In this way, the largest possible area of the hollow-shaped cellulose acetate filaments serving as cooling material is possible, as a result of which the particle-laden gas can be cooled better.
  • the filter and / or filler material can be introduced into the smoking article in such a way that, in particular, the hollow-shaped cellulose acetate filaments are arranged essentially along the direction of flow of the particle-laden gas or the aerosol. In this way it can be achieved that the filter and / or filler material causes only a reduced pressure loss when the user is sucking on the mouthpiece, so that the user does not perceive the suction to be strenuous or uncomfortable.
  • the tensile resistance of the filter and / or filler material can be varied over a wide range and adapted to the particular application.
  • the filter and / or filler material consists only of hollow cellulose acetate filaments.
  • the filter and / or filling material then has an optimal cooling capacity with a reduced filtration capacity.
  • Another embodiment of the filter and / or filler material according to the invention provides that the filter and / or filler material is arranged as a separate segment in the direction of flow of the particle-laden gas or aerosol in front of the mouthpiece.
  • the separate segment can have a variety of shapes. By way of example, a preferred cylindrical shape will be described, to which the invention is not intended to be limited. Conventional smoking articles are mostly designed essentially cylindrical.
  • the separate segment can also be arranged upstream of a possible filter in the direction of flow of the particle-laden gas.
  • the filter and / or filler material which serves as a cooling device and is designed as a separate segment, can, for example, be made entirely of hollow-shaped cellulose acetate filaments.
  • the separate segment has a cover, for example made of paper or a type of housing, so that the hollow-shaped cellulose acetate filaments serving as cooling material can be encapsulated.
  • the Umhül ment or the housing has an inlet opening and an outlet opening for the particle-laden gas or the aerosol, through which it flows through the mouthpiece of the user due to the Ansau gene.
  • the hollow-shaped cellulose acetate filaments used as cooling material can, for example, also optionally be attachable in or on the smoking article in encapsulated form. In this way, a user has the option of only cooling the particle-laden gas if he deems it necessary.
  • the tensile resistance of a filter rod formed from the filter material according to the invention can be varied over a significantly larger range by varying the proportion of hollow cellulose acetate filaments in the filter material.
  • a filter material which consists at least partially of hollow cellulose acetate filaments, allows the tensile resistance and the filtration performance to be adapted over a wide range to the respective requirements, much more flexibly than is the case with conventional filter materials based on cellulose acetate filaments the case is.
  • a cooling effect can be set variably.
  • the present invention allows mouthpieces or filters to be formed from cellulose acetate, which is normally in the form of a strand of essentially longitudinally directed continuous filaments, the continuous filaments preferably being crimped so that short regions of the individual filaments are irregularly shaped non-parallel, converging and diverging directions are arranged in comparison to the predominantly L jossverlau fenden direction of the strand.
  • the surface structure of the filter material can be varied in that special crimped cellulose acetate filaments are used.
  • the crimp index of the cellulose acetate filaments is preferably between 10% and 60%, and in particular between 20% and 50%.
  • the ripple index I x is a measure of the intensity of the ripple.
  • the curl index of a filter tow is determined by a tensile test (relationship between force and elongation). It is defined as the ratio of the stretched length L 2 under test load minus the initial length to the initial length under preload Li:
  • the test load is 25 N and the preload is 2.5 N.
  • the clamping length is 250 mm.
  • the crimp index is determined in a tensile test with a constant Dehngeschwin speed of 300 mm / min on a G02 device from Borgwaldt GmbH, Flamburg. 10 individual measured values are recorded per measurement. The test is carried out under a standard climate: 20 ° C and 60% relative humidity.
  • the filter material according to the invention is preferably in the form of a filter tow consisting of endless, crimped cellulose acetate filaments, and in particular cellulose 2.5 acetate filaments.
  • a solution of approx. 30% cellulose-2,5-acetate in acetone is pressed through special spinnerets, the acetone evaporates in a spinning shaft by blowing heated air into a large number of filaments (1,000 to 35,000) summarized in a band and then ruffled it in a shrub chamber.
  • the product is then dried, filled into storage containers and finally pressed into bales weighing between 300 and 600 kg.
  • spinnerets are used which are designed to spin hollow cellulose acetate filaments and / or cellulose acetate spinning fibers.
  • the filter tow is removed from the bale and processed into filter rods on a filter rod machine, as described, for example, in US Pat. No. 5,460,590 A.
  • the filter tow is stretched in a stretching device, provided with an additive used to glue the filaments and then, after a three-dimensional fuse has been formed, introduced into the format part with the help of an inlet funnel, where it is axially compressed transversely, wrapped with paper and cut to the final length of the filter rods cut.
  • the additive applied to bond the filaments can be a high-boiling solvent for cellulose acetate, such as glycerol triacetate (triacetin), which briefly dissolves the surface of the filaments after its application. Wherever two filaments happen to come into contact with each other, a solid bond occurs some time afterwards, as the excess additive migrates into the fiber surface, causing the previously liquid solution drop to solidify.
  • a high-boiling solvent for cellulose acetate such as glycerol triacetate (triacetin)
  • triacetin glycerol triacetate
  • the tensile resistance can be reduced to the required level despite the increase in the cooling capacity and the reduction in the filter capacity. can be maintained in the range without increasing the filament titer.
  • the proportion of hollow-shaped (hollow) cellulose acetate filaments in the filter material is between 20 to 100% and preferably between 40 to 100% and even more preferably - depending on the application - between 70 to 100%.
  • the void content in the filter material is preferably 25 to 90% and preferably 50 to 80%.
  • This hollow part makes a decisive contribution to the filtration performance on the one hand and to the reduction of the tensile resistance on the other hand, which can only be achieved due to a corresponding proportion of hollow fibers in the filter material, but not with closed filaments.
  • the hollow portion I corresponds to the ratio of the "hollow" area of the filter material to the "total" cross-sectional area of the fibers.
  • the filter material according to the invention is also particularly characterized in that the filament diameter of the cellulose acetate filaments is significantly larger than the filament diameter of other (synthetic) flea fibers, the filament diameter of which is in the range between 10 and 30 ⁇ m.
  • the filament diameter of the hollow cellulose acetate filaments is in the range between 30 to 150 ⁇ m (outer diameter), and preferably between 50 to 120 ⁇ m (outer diameter), and even more preferably between 60 to 100 ⁇ m (outer diameter).
  • the hollow fraction can be increased and thus the specific filtration performance of the filter and / or filler material according to the invention can be significantly reduced, while at the same time the cooling performance of the filter and / or filler material according to the invention is increased.
  • the invention also relates to a cigarette filter made from a filter material of the aforementioned type.
  • thermoplastic cellulose ester fiber material or, in the case of a non-thermoplastic cellulose ester, a water-soluble adhesive can be used to make a filter according to the invention.
  • one thermoplastic cellulose ester fiber material can be divided into two cases.
  • the fiber material is made from a naturally thermoplastic cellulose ester, such as cellulose acetobutyrate.
  • the filter tow can be processed into filters according to the invention without further measures.
  • a non-thermoplastic starting polymer such as cellulose-2,5-acetate, this must be thermoplasticized by adding a suitable plasticizer.
  • a filter tow is pulled off a bale, pneumatically spread out and stretched according to the method customary for spatial filters.
  • the acetate weight can be a maximum of 5 mg per mm filter length and at least about 2 mg per mm filter length and is in particular about 3 to 4 mg per mm filter length. If the maximum value of 5 mg per mm of filter length is exceeded, then such a product is not sufficiently economical. A minimum value of approximately 2 mg per mm of filter length is preferably maintained. If this value is not reached, then, according to the state of the art, the desired cleared cigarette filter of a minimum of 88% can no longer be maintained.
  • the tensile resistance within the scope of the inventive teaching can be a maximum of 2 mm daPa per mm filter length and at least about 0.1 daPa per mm filter length and is in particular 0.2 daPa to 1 daPa per mm filter length.
  • a tensile resistance of 0.3 daPa to 0.7 daPa per mm of filter length is particularly preferred.
  • a minimum value of 0.3 daPa per mm of filter length is preferably maintained. If this value is not reached, the required hardness of the filter of a minimum of 88% can no longer be maintained according to the state of the art.
  • the invention relates to a filter and / or filler material for mouthpieces for use with smoking goods or HNB products, the filter and / or filler material being based on cellulose acetate filaments, which are at least partially designed as hollow and / or tubular cellulose acetate filaments .
  • the cellulose acetate filaments have hollow and in particular crimped endless cellulose acetate filaments and / or hollow and in particular crimped and cut endless cellulose acetate filaments.
  • the crimp index of the cellulose acetate filaments is between 10% and 60%, in particular between 20% and 50%.
  • the cellulose acetate filaments are formed from a thermoplastic cellulose material, the cellulose acetate filaments, if a plasticizer is included, containing this evenly distributed, and / or where a water-soluble adhesive is present on the surface of the cellulose acetate filaments.
  • the plasticizer content is between 1 and 40%.
  • a plasticizer is triacetin, triethylene glycol diacetate and / or diethyl citric acid.
  • the cellulose acetate filaments have a fineness of between 5 and 30 denier, preferably between 10 and 25 denier and even more preferably between 15 and 20 denier.
  • the total titer of the filter and / or filler material is between 4,000 and 40,000 denier and preferably between 6,000 and 30,000 denier.
  • the hollow portion I in the filter and / or filler material is 25% to 90% and preferably 50% to 80% %.
  • the filament diameter of the cellulose acetate filaments is in a range between 30 to 150 mih (outside diameter), and preferably in a range between 50 to 120 gm (outside diameter), and even more preferably in a range between 60 to 100 gm (outside diameter).
  • the mass fraction of hollow cellulose acetate filaments is 20 to 100%, preferably 50 to 100% and even more preferably 70 to 100%.
  • the hollow cellulose acetate filaments are spaced apart in an unregulated arrangement, the cellulose acetate filaments being crosslinked and the connecting cellulose acetate filaments being looped and / or interlocked with one another.
  • a binder in particular an organic or inorganic binder, is also provided to hold the cellulose acetate filaments together.
  • the present invention relates to a mouthpiece for use with tobacco products or FINB products, the mouthpiece having a filter and / or filler material of the aforementioned type according to the invention.
  • the present invention relates to a cigarette filter or a cigarette filter element which has a filter and / or filler material of the aforementioned type according to the invention.
  • At least one feature of the following features is implemented:
  • the fiber density of the filter and / or filler material is between 10 and 70 kg per m 3 and preferably between 20 to 70 kg per m 3 and more preferably between 40 to 60 kg per m 3;
  • ⁇ the cigarette filter or the cigarette filter element has a Filtrona hardness of at least 88% and preferably a Filtrona hardness of 88% to 95% and more preferably a Filtrona hardness of 90% to 93%; ⁇ the cigarette filter or the cigarette filter element has a drawing resistance of at least 0.1 daPa per mm of filter length, and preferably a resistance to draw of 0.2 to 1.0 daPa daPa per mm of filter length, and more preferably a resistance to draw of 0.3 to 0.7 daPa daPa per mm of filter length;
  • the filter and / or filling material includes a plasticizer, wherein the plasticizer content is between 1% to 40%.
  • an in particular capsule-shaped or capsule-like flavor release element is also embedded in the filter and / or filler material.
  • the cigarette filter or the cigarette filter element has solid cellulose acetate filaments in addition to the hollow cellulose acetate filaments.
  • the present invention relates to the use of the filter and / or filler material according to the invention in smoking goods or in FINB products.
  • the present invention relates to a method for producing a filter and / or filler material for mouthpieces for use with smoking goods or FINB products, the filter and / or filler material preferably consisting of cellulose acetate filaments and / or cellulose acetate staple fibers, with a solution of cellulose acetate with an acetyl number of at least 53% in acetone is pressed through a spinneret with several openings, and then optionally the cellulose acetate filaments are cut into cellulose acetate staple fibers and a large number of the cellulose acetate filaments and / or cellulose acetate staple fibers obtained in this way are combined to form a filter tow which is optionally crimped, the spinneret through which the solution of cellulose acetate is pressed is designed such that hollow cellulose acetate filaments are spun.

Abstract

L'invention concerne un matériau de filtre et/ou matériau de remplissage pour embouts destinés à être utilisés avec des produits à fumer ou des produits HNB, le matériau de filtre et/ou matériau de remplissage étant à base de filaments d'acétate de cellulose, dont au moins une partie sont sous la forme de filaments d'acétate de cellulose creux. L'invention concerne également un embout destiné à être utilisé avec des produits à fumer ou des produits HNB, l'embout comprenant un matériau de filtre et/ou matériau de remplissage du type selon l'invention. L'invention concerne également un filtre de cigarette comprenant un tel matériau de filtre et/ou matériau de remplissage, et un procédé correspondant de fabrication d'un matériau de filtre et/ou matériau de remplissage pour des embouts destinés à être utilisés avec des produits à fumer ou des produits HNB.
PCT/EP2020/082495 2019-12-19 2020-11-18 Matériau de filtre et/ou matériau de remplissage pour embouts destinés à être utilisés avec des produits à fumer ou des produits hnb, embouts et filtres de cigarette comprenant un tel matériau de filtre et/ou matériau de remplissage, et procédé de fabrication d'un tel matériau de filtre et/ou matériau de remplissage WO2021121839A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1020227024289A KR20220116495A (ko) 2019-12-19 2020-11-18 흡연 제품 또는 hnb 제품과 함께 사용하기 위한 마우스피스용 필터 재료 및/또는 충전제 재료, 마우스피스 및 이러한 필터 재료 및/또는 충전제 재료를 포함하는 담배 필터, 및 이러한 필터 재료 및/또는 충전제 재료의 제조 방법
JP2022538457A JP7407944B2 (ja) 2019-12-19 2020-11-18 喫煙製品またはｈｎｂ製品で使用するためのマウスピース用のフィルター材料および／またはフィラー材料、そのようなフィルター材料および／またはフィラー材料を含むマウスピースおよびシガレットフィルター、ならびにそのようなフィルター材料および／またはフィラー材料を製造するための方法
CN202080087353.3A CN114867370A (zh) 2019-12-19 2020-11-18 用于吸烟产品或hnb产品的烟嘴的过滤材料
US17/786,185 US20230017871A1 (en) 2019-12-19 2020-11-18 Filter material and/or filler material for mouthpieces for use with smoking products or hnb products, mouthpieces and cigarette filters comprising such a filter material and/or filler material, and method for manufacturing such a filter material and/or filler material
BR112022011737A BR112022011737A2 (pt) 2019-12-19 2020-11-18 Método de fabricação de material de filtro, piteira e filtro de cigarro
EP20808384.0A EP4076045B1 (fr) 2019-12-19 2020-11-18 Procédé de fabrication d'un matériau de filtre et/ou matériau de remplissage pour embouts destinés à être utilisés avec des produits à fumer ou des produits hnb, embouts et filtres de cigarette comprenant un tel matériau de filtre et/ou matériau de remplissage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019135114.6 2019-12-19
DE102019135114.6A DE102019135114A1 (de) 2019-12-19 2019-12-19 Filter- und/oder füllmaterial für mundstücke zur verwendung mit rauchwaren oder hnb-produkten, mundstücke und zigarettenfilter mit einem solchen filter- und/oder füllmaterial sowie verfahren zur herstellung eines solchen filter- und/oder füllmaterials

Publications (1)

Publication Number Publication Date
WO2021121839A1 true WO2021121839A1 (fr) 2021-06-24

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PCT/EP2020/082495 WO2021121839A1 (fr) 2019-12-19 2020-11-18 Matériau de filtre et/ou matériau de remplissage pour embouts destinés à être utilisés avec des produits à fumer ou des produits hnb, embouts et filtres de cigarette comprenant un tel matériau de filtre et/ou matériau de remplissage, et procédé de fabrication d'un tel matériau de filtre et/ou matériau de remplissage

Country Status (8)

Country Link
US (1) US20230017871A1 (fr)
EP (1) EP4076045B1 (fr)
JP (1) JP7407944B2 (fr)
KR (1) KR20220116495A (fr)
CN (1) CN114867370A (fr)
BR (1) BR112022011737A2 (fr)
DE (1) DE102019135114A1 (fr)
WO (1) WO2021121839A1 (fr)

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DE102021125415A1 (de) 2021-09-30 2023-03-30 Cerdia International GmbH Filterelement für mundstücke zur verwendung mit rauchwaren oder hnb-produkten
DE102022102862A1 (de) 2022-02-08 2023-08-10 Cerdia International GmbH Filterelement für mundstücke, mundstück zur verwendung mit rauchwaren oder hnb-produkten und zigarettenfilter

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CH345578A (de) * 1956-06-26 1960-03-31 Mueller Paul Adolf Dipl Ing Anwendung von Kunststoff-Fasern
CH567379A5 (fr) * 1971-10-22 1975-10-15 Rhodiaceta Ag
JPS60221069A (ja) * 1984-04-16 1985-11-05 三菱レイヨン株式会社 デユアル構造タバコフイルタ−
DD258627A5 (de) * 1985-05-31 1988-07-27 �����@������������������k�� Verfahren zur bildung einer hautlosen, hohlen, nicht zusammendrueckbaren faser aus einem zellusoleestermaterial
US5460590A (en) 1993-06-18 1995-10-24 Rhone-Poulenc Rhodia Aktiengesellschaft Method and apparatus for producing fiber skeins
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JP7407944B2 (ja) 2024-01-04
DE102019135114A1 (de) 2021-06-24
EP4076045A1 (fr) 2022-10-26
JP2023511507A (ja) 2023-03-20
KR20220116495A (ko) 2022-08-23
US20230017871A1 (en) 2023-01-19
BR112022011737A2 (pt) 2022-08-30
CN114867370A (zh) 2022-08-05
EP4076045B1 (fr) 2023-11-15

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