WO2021052172A1 - 烟用过滤部件 - Google Patents

烟用过滤部件 Download PDF

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Publication number
WO2021052172A1
WO2021052172A1 PCT/CN2020/112927 CN2020112927W WO2021052172A1 WO 2021052172 A1 WO2021052172 A1 WO 2021052172A1 CN 2020112927 W CN2020112927 W CN 2020112927W WO 2021052172 A1 WO2021052172 A1 WO 2021052172A1
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WO
WIPO (PCT)
Prior art keywords
filter
component according
core material
filter component
tow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/112927
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English (en)
French (fr)
Inventor
钱剑冰
詹保鸣
花琴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Soul Tour Electronics Huizhou Co Ltd
Original Assignee
Soul Tour Electronics Huizhou Co Ltd
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 Soul Tour Electronics Huizhou Co Ltd filed Critical Soul Tour Electronics Huizhou Co Ltd
Priority to JP2022517846A priority Critical patent/JP2022548948A/ja
Priority to EP20866799.8A priority patent/EP4032416A4/en
Priority to KR1020227008385A priority patent/KR20220078567A/ko
Priority to US17/642,313 priority patent/US12207678B2/en
Publication of WO2021052172A1 publication Critical patent/WO2021052172A1/zh
Anticipated expiration legal-status Critical
Priority to US18/991,639 priority patent/US20250127211A1/en
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of 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
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of 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 OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • A24D1/045—Cigars; Cigarettes with mouthpieces or filter-tips with smoke filter means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0287—Manufacture of tobacco smoke filters for filters with special features for composite filters
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of 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
    • A24D3/066—Use of materials for tobacco smoke filters characterised by structural features in the form of foam or having cellular structure
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of 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
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F13/00—Appliances for smoking cigars or cigarettes
    • A24F13/02—Cigar or cigarette holders
    • A24F13/04—Cigar or cigarette holders with arrangements for cleaning or cooling the smoke
    • A24F13/06—Cigar or cigarette holders with arrangements for cleaning or cooling the smoke with smoke filters
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0279—Manufacture of tobacco smoke filters for filters with special features with tubes

Definitions

  • the present invention relates to the field of smoke treatment in the tobacco industry, and in particular to a smoke filtering technology used for smoke extraction.
  • the smoked smoke also carries e-liquid, nicotine, polyols and other substances, which can cause oral irritation, which is harmful to consumers. health.
  • the Marlboro brand heat-not-burn smoking product with the highest market share as an example. It treats flue gas by assembling fiber cylinders, polyurethane fiber membranes and fiber filters as flue gas treatment components. That is, the polyurethane fiber membrane is rolled into a cylindrical shape, and the gaps between the folds of the fiber membrane are used to filter the flue gas. The channels formed by the gaps between the folds of the fiber membrane are consistent with the flue gas flow direction, so there is no obvious suction resistance. .
  • polyurethane is a high-molecular polymer material, the manufacturing method is complicated and expensive; more importantly, according to related research reports, polyurethane will volatilize toxic substances after being heated at high temperature, which will endanger human health.
  • calcium oxide particles can be used as filter components to be placed in cigarette holder filters or heat-not-burned cigarettes by using the properties of calcium oxide to absorb oily and water-based substances.
  • the chemical smell of tobacco which will affect the smoking taste of tobacco and its derivatives.
  • the calcium oxide particles are granular, it is difficult to keep them in the HNB cigarettes.
  • the position and volume of the calcium oxide particles in the HNB cigarettes are controlled by setting a ventilation baffle.
  • the problem with this structure is that the calcium oxide particles will squeeze the tobacco derivative section, which will block the inside of the ventilation duct, thereby increasing the smoking resistance.
  • the purpose of the present invention is to provide a cigarette filter component, which can effectively filter the moisture and tar in the flue gas, and at the same time can ensure a good smoking feeling and effect, which can be widely used. Apply to all kinds of cigarettes or smoking utensils.
  • the present invention provides a filter component for tobacco smoking, which includes a filter main body, a filter element and a filter sealing layer.
  • the filter main body is a hollow cylinder
  • the filter element is built in the filter main body, and at least One end is closed by the filter sealing layer
  • the filter core material is a granular filter material, a tow-shaped filter material, a rolled filter material or a similar filter material with a large specific surface area shape structure.
  • the organic combination of granular filter material, tow-shaped filter material or rolled filter material, etc. therefore, effectively improve the filtering effect of moisture, tar, etc. in the flue gas, while ensuring that the filter material does not The air passage of the filter element is blocked, thereby providing a good suction feeling and effect.
  • the particle size is too small, it will The shadow affects the gaps between the particulate filter materials, so that the ventilation effect is greatly reduced, thereby increasing the resistance to smoking, thereby reducing the feeling of smoking.
  • the inventor found through a large number of experimental studies that the particle size of the particulate filter material is 250-3000 ⁇ m, which can effectively solve this problem.
  • the amount of particulate filter material added will also have an important impact on the filtration and suction effect.
  • the inventor has found through a large number of experimental studies that the amount of particulate filter material added accounts for 1/5 of the volume of the filter body. -4/5, more preferably, the addition amount of the particulate filter material accounts for 1/5 of the volume of the filter body, which can effectively solve this problem.
  • the filter core material is preferably polypropylene resin particles; As far as polypropylene resin particles are concerned, they also have the characteristic of swelling and softening after absorbing water. Therefore, from the aspects of filtration, adsorption and air permeability, it is preferable to set the particle size of the polypropylene resin particles to 750-1500 ⁇ m.
  • the present invention proposes to use a tow-type filter material as the filter material.
  • the tow type filter material the linear density of the tow will directly affect the size and stability of the draw resistance of the tow.
  • the tow-like filter material preferably uses tow with a linear density of 3-6ktex; more preferably, the tow-like filter material uses a linear density of 3.2-4.2ktex. Tow.
  • the present invention proposes to adopt a rolled filter material as a filter material.
  • This foldable filter material makes full use of the film-forming properties of the material itself to make the adsorbent material into a film, and then fold the film into a cylindrical shape, and use the gap formed by the fold to make the flue gas flow out to achieve effective filtration of the flue gas.
  • the foldable filter material it is preferable to use an adsorbent as a matrix, and a filter and absorb material is laid or sprayed on it.
  • the filter and absorber material can be granular materials, resin slurries or fiber tows, preferably ceramics. Particles, polypropylene resin particles, polypropylene resin slurry, polylactic acid fiber tow or similar materials.
  • a plurality of cavities may be provided inside the filter body, and the filter element is arranged in these cavities.
  • the plurality of chambers are preferably arranged along the axial direction of the filter body.
  • an independent cylindrical filter element is provided in the filter body. More preferably, there are a plurality of cylindrical filter core materials, and these cylindrical filter core materials are arranged adjacent to each other in the filter body, so that the gaps between the cylindrical filter core materials and the inside of the cylindrical filter core materials constitute air flow Filter the channel.
  • the filter body is preferably molded from starch.
  • starch used in the filter body can make full use of the advantages of sufficient starch source, degradable, environmentally friendly, and healthy, and easy to mold channels with various structures in the body.
  • the air permeability of the filter sealing layer is preferably higher than 12000 CU; more preferably, the filter sealing layer uses pure wood pulp paper with an air permeability higher than 26000 CU.
  • the total cross-sectional area of the through holes of the filter body should not be less than 5mm 2 .
  • the tobacco filter component provided by the present invention can effectively isolate tobacco and its derivatives, so as to fully dry and filter the smoke, and has a small smoking resistance, thereby ensuring the mouthfeel of smoking, and at the same time satisfying health and environmental protection. Therefore, it is suitable to be widely used in tobacco fields such as cigarettes, heat-not-burn and steam electronic cigarettes.
  • Fig. 1 is a schematic diagram showing the structure of a cigarette filter component of Example 1 of the present invention.
  • FIG. 2 is a schematic cross-sectional view of the filter component for cigarettes of Example 1.
  • Fig. 3 is a schematic diagram showing the structure of a cigarette filter member of Example 2 of the present invention.
  • FIG. 4 is a schematic cross-sectional view of the filter component for cigarettes of Example 2.
  • Fig. 5 is a schematic diagram showing the structure of a cigarette filter component of Example 3 of the present invention.
  • FIG. 6 is a schematic cross-sectional view of a filter component for cigarettes of Example 3.
  • FIG. 6 is a schematic cross-sectional view of a filter component for cigarettes of Example 3.
  • Fig. 7 is a schematic diagram showing the structure of a cigarette filter component of Example 4 of the present invention.
  • FIG. 8 is a schematic cross-sectional view of the filter component for cigarettes of Example 4.
  • Fig. 9 is a schematic cross-sectional view of a cigarette filter component of Example 5 of the present invention.
  • the cigarette filter component of Embodiment 1 of the present invention includes a filter body 1, a filter element 2 and a filter sealing layer 3 arranged in the filter body 1, wherein one end of the filter body 1 is filtered and sealed Layer 3 is closed.
  • the filter body 1 is a hollow paper cylinder rolled and pressed by a coiler, and the filter sealing layer 3 is fixed on one end surface of the filter body 1 by a food-grade water-based glue.
  • the filter sealing layer 3 preferably adopts 50g. /m 2 of the spunlace non-woven cotton fabric
  • the filter core material 2 preferably uses polypropylene resin particles with a particle size of 1000 ⁇ m, and the polypropylene resin particles occupy 1/5 of the volume of the filter body 1.
  • the filter body 1, the filter core material 2 and the filter sealing layer 3 in the embodiment 1 of the present invention can be ideally combined, so as to improve the filterability, air permeability, flexibility and suction feeling of the filter component. Wait for the performance to reach the best.
  • the cigarette filter component of Example 2 includes a filter body 1, a filter core material 2 and a filter sealing layer 3 arranged in the filter body 1, wherein both ends of the filter body 1 pass through food grade
  • the water-based glue is sealed by the filter sealing layer 3.
  • the filter main body 1 is a hollow paper tube rolled by a spiral paper tube machine.
  • the paper tube can adopt a three-layer structure or can use water and oil barrier paper.
  • Example 2 considering that it can have an ideal suction resistance and a suitable amount of smoke in practical applications, the filtering and sealing layer 3 adopts highly air-permeable pure wood pulp paper with an air permeability of 26000 CU.
  • the filter element 2 uses ceramic particles; and Further experimental studies have found that the particle size of the ceramic particles used in the filter core material 2 is preferably 800 ⁇ m.
  • the inventor adopted a specific structure for the filter core material 2, namely: as shown in Figures 3 and 4, the ceramic particles are spread on the water The surface of the non-woven cotton is punctured and the spunlace non-woven cotton is rolled into a loose roll shape, which is used as a filter core material to be arranged in the hollow structure of the filter body 1.
  • the cigarette filter component of Example 3 includes a filter body 1, a filter core material 2 and a filter sealing layer 3. Both ends of the filter body 1 are filtered and sealed by a food-grade water-based glue. 3 closed.
  • the filter body 1 is a hollow paper tube rolled by a spiral paper tube machine.
  • hemp paper with an air permeability of 24000 CU is used for the filter sealing layer 3.
  • the filter element 2 adopts a filter paper formed by spraying and fixing polypropylene resin slurry on the surface of hemp paper, and further, the filter paper is folded into a loose roll, which is set in the hollow structure of the filter body 1 as the filter element.
  • the inventor found that this kind of filter paper treated with polypropylene resin slurry spray treatment can not only improve the quality of the finished product, by applying a slurry treatment to a material with relatively poor plasticity such as polypropylene resin, and then combining it with the paper.
  • the overall strength and it can also ensure that the polypropylene resin material is evenly distributed in the filter body, thereby achieving a more uniform and longer-lasting treatment of the flue gas, and the air permeability is more ideal; moreover, the properties of polypropylene resin at high temperatures Stable, no peculiar smell, and will not produce gas that is harmful to the human body or affects the suction experience.
  • the cigarette filter component of Example 4 includes a filter body 1, a filter core material 2 and a filter sealing layer 3, wherein the filter sealing layer 3 is a highly air-permeable pure wood pulp paper with an air permeability of 12000 CU. Both ends of the filter body 1 are sealed by a filter sealing layer 3 through a food-grade water-based glue.
  • the filter body 1 adopts a cylindrical structure made by starch molding, and a plurality of channels are formed in the filter body 1.
  • the filter core material 2 adopts a sand core made by high-temperature sintering of quartz sand and is filled in the channel of the filter body 1.
  • the reason why the filter main body 1 is manufactured by molding starch is to make full use of the advantages of sufficient starch source, degradable, environmentally friendly and healthy, and easy to mold in the main body to form various structural channels; the reason for using quartz sand
  • the high-temperature sintering of the filter core material 2 makes full use of the excellent filtering and cooling properties of quartz sand, and is convenient for sintering to form various formations.
  • the combination of the filter body 1 made of starch molding and the filter core material 2 made of quartz sand high-temperature sintering significantly improves the filterability and processability of the cigarette filter component of Example 4, and greatly simplifies The processing technology and the production cost are greatly reduced.
  • Fig. 9 is a schematic cross-sectional view of a cigarette filter component of Example 5 of the present invention.
  • the cigarette filter component of this embodiment includes a filter body 1, a filter core material 2 and a filter sealing layer (not shown), wherein the filter body 1 is a hollow paper tube made by a spiral paper tube machine. The end is closed by a filter sealing layer.
  • the filter sealing layer can use 40g/m 2 spunlace non-woven cotton.
  • the filter element 2 is composed of three independent built-in cylindrical filter elements, and these independent cylindrical filter elements are filled with polylactic acid fiber tows.
  • the linear density of the fiber tow is preferably 3.4 ktex.
  • the cylindrical filter element 2 abuts against each other, and is fixed in the filter body 1 by the friction and pressure between the cylindrical walls. Furthermore, the gap between the cylindrical filter element and the cylindrical filter The inside of the core material constitutes an airflow filtering channel.
  • the inventor has proved through a large number of experimental studies that the "built-in filter element structure" of Example 5, as another ideal filtering deformation structure, can not only effectively divert and filter the flue gas, but also filter according to the actual filtering requirements.
  • the internal structure of the components is flexibly adjusted to improve the processability.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

一种用于烟草抽吸的过滤部件，其包括过滤主体(1)，过滤芯材(2)以及过滤封闭层(3)。过滤主体(1)为中空筒体，过滤芯材(2)内置于过滤主体(1)内。过滤主体(1)的至少一端由过滤封闭层(3)封闭。过滤芯材(2)为颗粒状过滤材料、丝束状过滤材料、卷折状过滤材料或类似具有大比表面积形状结构的过滤材料。烟用过滤部件可广泛应用于烟草领域，可内置于烟支中或设置在相关配件中。通过烟用过滤部件，能够有效地过滤烟气中的水分、焦油，同时能够确保具有良好的抽吸感觉和效果。

Description

烟用过滤部件 技术领域
本发明涉及烟草行业中的烟气处理领域，特别涉及用于烟气抽吸的烟气过滤技术。
背景技术
近年来，烟草行业经济发展迅速，传统卷烟销售额不断提升的同时，新型烟草技术不断创新发展。随着当前人们对健康生活的要求不断提高，烟草行业中对烟气处理的把控愈加严格。对于传统的卷烟而言，由于烟气中含有大量尼古丁、焦油等有害物质，因此，往往采用纤维滤嘴作为烟气处理部件来过滤烟气。为了提高过滤效果，香烟产品制造商往往在卷烟滤嘴段处接装外置滤嘴来过滤烟气。
但是，在加热不燃烧烟草技术领域，由于抽吸的烟气中除芳香物质以外，还携带有烟油、烟碱、多元醇等物质，从而会导致产生口腔刺激感，以致有害于消费者身体健康。以目前市场占有率最高的万宝路品牌的加热不燃烧烟制品为例，其通过装配纤维圆筒、聚氨酯纤维膜和纤维滤嘴作为烟气处理部件来处理烟气。即，将聚氨酯纤维膜卷制为圆柱状，利用纤维膜褶皱间存在的空隙来过滤烟气，由于纤维膜褶皱间存在的空隙形成的通道与烟气流通方向一致，因此，无明显抽吸阻力。但是，由于聚氨酯为高分子聚合材料，制造方法繁杂且成本昂贵；更重要的是，据有相关研究报告表明，聚氨酯在高温受热后会挥发有毒物质以致危害人体健康。
目前，业界有关企业提出：利用氧化钙能够吸附油性、水性物质的特性，将氧化钙颗粒作为过滤部件放置在卷烟的烟嘴过滤器中或加热不燃烧烟支中，但是，由于氧化钙颗粒具有特殊的化学气味，以致会影响烟草及其衍生物的抽吸口 感。另外，由于氧化钙颗粒为颗粒状，难以在加热不燃烧烟支中保持，针对于此，现有技术中通过设置通气隔板来实现氧化钙颗粒在加热不燃烧烟支中的位置和体积控制，但是，这种结构所存在的问题在于：氧化钙颗粒会对烟草衍生物段造成挤压，从而造成通气管道内部堵塞，以致增大抽吸烟阻。
因此，业界迫切希望能够提供一种无毒害无异味且无明显抽吸烟阻的烟用过滤部件，以广泛应用于各类烟草制品的烟气过滤。
发明内容
为了解决以上现有技术中存在的问题，本发明的目的在于提供一种烟用过滤部件，能够有效地过滤烟气中的水分、焦油，同时能够确保具有良好的抽吸感觉和效果，可广泛应用于各类烟支或烟具。
基于该发明构思，本申请提出了以下技术方案。
即，本发明提供了一种用于烟草抽吸的过滤部件，其包括过滤主体，过滤芯材以及过滤封闭层，过滤主体为中空筒体，过滤芯材内置于过滤主体内，过滤主体的至少一端由所述过滤封闭层封闭，过滤芯材为颗粒状过滤材料、丝束状过滤材料、卷折状过滤材料或类似具有大比表面积形状结构的过滤材料。由于本发明提供的过滤部件采用了上述特定结构与具有大比表面积形状结构的过滤材料
(如，颗粒状过滤材料、丝束状过滤材料或卷折状过滤材料等)的有机结合，因此，有效地提升了针对烟气中水分、焦油等的过滤效果，同时能够确保过滤材料不会堵塞过滤部件的通气通道，由此提供良好的抽吸感觉和效果。
作为本发明的一个重要方面，对于颗粒型过滤材料而言，其粒径越小，则比表面积越大，相应地对烟气的吸附过滤效果越好，但是，如果粒径过小，则会影影响颗粒型过滤材料之间的缝隙，以致大大降低透气效果，从而增大抽吸烟阻， 由此降低抽吸感觉。针对于此，发明人通过大量试验研究发现，颗粒状过滤材料的粒径为250-3000μm，则能有效地解决该问题。
同理，颗粒型过滤材料的添加量也会对过滤和抽吸效果起到重要影响，针对于此，发明人通过大量试验研究发现，颗粒型过滤材料的添加量占过滤主体容积的1/5-4/5，更优选的是，颗粒型过滤材料的添加量占过滤主体容积的1/5，则能有效地解决该问题。
发明人经过研究发现，在众多的过滤材料中，聚丙烯树脂具有吸水吸油效率最高、吸附量最大的优点，故在本发明中，过滤芯材优选聚丙烯树脂颗粒；通过进一步试验研究发现，对于聚丙烯树脂颗粒而言，其还具有在吸附水后膨胀变软的特点，因此，从过滤吸附效果和透气效果等方面考虑，优选将聚丙烯树脂颗粒的粒径设定为750-1500μm。
本发明的另一个重要方面在于，作为具有大比表面积形状结构的过滤芯材的另一种形式，本发明提出了过滤材料采用丝束型过滤材料。发明人在对这种过滤材料的研发中发现，对于丝束型过滤材料而言，丝束线密度会直接影响丝束吸阻的大小和稳定。为了解决这一问题，发明人通过大量试验研究发现，丝束状过滤材料优选采用线密度为3-6ktex的丝束；更优选的是，丝束状过滤材料采用线密度为3.2-4.2ktex的丝束。
本发明的另一个重要方面在于，作为具有大比表面积形状结构的过滤芯材的另一种形式，本发明提出了过滤材料采用卷折型过滤材料。这种卷折型过滤材料充分利用材料自身的成膜性，将吸附材料制成薄膜，进而将薄膜卷折成筒形，利用卷折形成的缝隙使烟气流过时实现对烟气的有效过滤。对于卷折型过滤材料，优选以吸附材料为基体，并在其上铺设或喷淋有过滤吸收材料，其中，所述过滤 吸收材料可以采用颗粒状材料、树脂浆液或纤维丝束，优选采用陶瓷颗粒、聚丙烯树脂颗粒、聚丙烯树脂浆液、聚乳酸纤维丝束或类似材料。
本发明的另一个重要方面在于，过滤主体内部可以设有多个腔室，过滤芯材设置在这些腔室内。多个腔室优选沿过滤主体的轴向设置。
本发明的另一个重要方面在于，过滤主体内设有独立的筒状过滤芯材。更优选的是，筒状过滤芯材为多个，这些筒状过滤芯材相邻抵接设置在过滤主体内，以便筒状过滤芯材之间的缝隙以及筒状过滤芯材的内部构成气流过滤通道。
另外，过滤主体优选由淀粉模压而成。发明人发现，过滤主体采用淀粉，可以充分利用淀粉来源充足，可降解且环保健康，以及便于在主体内模压形成各种结构的通道等优点。
另外，过滤封闭层的透气度优选高于12000CU；更优选的是，过滤封闭层采用透气度高于26000CU的纯木浆纸。过滤主体的通孔横截面总面积应不小于5mm 2。
综上，本发明提供的烟用过滤部件能够有效隔绝烟草及其衍生物，从而能够充分干燥并过滤烟气，并且，抽吸烟阻小，从而能够保证抽吸口感，同时还能满足健康环保的要求，故适宜广泛应用于卷烟、加热不燃烧和蒸汽电子烟等烟草领域。
附图说明
图1为显示本发明实施例1的烟用过滤部件的结构示意图。
图2为实施例1的烟用过滤部件的横截面示意图。
图3为显示本发明实施例2的烟用过滤部件结构的示意图。
图4为实施例2的烟用过滤部件的横截面示意图。
图5为显示本发明实施例3的烟用过滤部件的结构示意图。
图6为实施例3的烟用过滤部件的横截面示意图。
图7为显示本发明实施例4的烟用过滤部件的结构示意图。
图8为实施例4的烟用过滤部件的横截面示意图。
图9为本发明实施例5的烟用过滤部件的横截面示意图。
在附图中：
1-过滤主体 2-过滤芯材 3-过滤封闭层
具体实施方式
下面，结合附图对本发明的实施例进行详细说明。
<实施例1>
如图1-2所示，本发明实施例1的烟用过滤部件包括过滤主体1、设置在过滤主体1内的过滤芯材2和过滤封闭层3，其中，过滤主体1的一端被过滤封闭层3封闭。过滤主体1为由卷条机卷压制成的中空纸筒，过滤封闭层3通过食品级水基胶被固定在过滤主体1的一个端面。
对于实施例1而言，需特别说明的是，发明人基于烟气过滤时的透气性、柔韧性以及抽吸阻力等诸多因素进行了仔细研究，通过大量试验证明，过滤封闭层3优选采用50g/m 2水刺无纺棉布，过滤芯材2优选采用粒径为1000μm的聚丙烯树脂颗粒，聚丙烯树脂颗粒占过滤主体1的容积的1/5。采用以上参数，能够使本发明实施例1中的过滤主体1、过滤芯材2与过滤封闭层3之间实现理想的结合，从而使过滤部件的过滤性、透气性、柔韧性以及抽吸感受等性能达到最佳。
<实施例2>
如图3-4所示，实施例2的烟用过滤部件包括过滤主体1、设置在过滤主体1内的过滤芯材2和过滤封闭层3，其中，过滤主体1的两端均通过食品级水基胶被过滤封闭层3封闭。过滤主体1为通过螺旋纸筒机卷制成的中空纸筒，为保证不渗油渗水，纸筒可采用三层结构或者可使用隔水隔油纸张。
在实施例2中，从实际应用时能够具有理想的抽吸有阻力感受以及适宜的烟气量等方面考虑，过滤封闭层3采用了透气度为26000CU的高透气纯木浆纸。
再有，发明人还发现，陶瓷颗粒不仅具有吸水吸油特性，而且还具有优良的降温效果，能够有效地避免抽烟时烟气温度过烫，基于此，过滤芯材2采用了陶瓷颗粒；并通过进一步的试验研究发现，过滤芯材2采用的陶瓷颗粒的粒径优选800μm。并且，从能够有效过滤烟气这一发明构思考虑，在实施例2中，发明人针对过滤芯材2采用了特定的结构，即：如图3和4所示，将陶瓷颗粒铺洒在水刺无纺棉表面且将水刺无纺棉卷为宽松的卷筒状，并将其作为过滤芯材设置在过滤体1的中空结构中。试验表明，这种过滤芯材结构充分利用了水刺无纺棉蓬松的特性，其卷起的褶皱可以对烟气进行有效分流和降温，并使烟气更均匀通过；另外，由于棉纤维设置了陶瓷颗粒，进一步增大了烟气接触面积，提升了吸水吸油效率。
<实施例3>
如图5-6所示，实施例3的烟用过滤部件包括过滤主体1、过滤芯材2和过滤封闭层3，其中，过滤主体1的两端均通过食品级水基胶被过滤封闭层3封闭。过滤主体1为通过螺旋纸筒机卷制成的中空纸筒。
在实施例3中，过滤封闭层3采用透气度为24000CU的麻纸。过滤芯材2采用将聚丙烯树脂浆液喷淋固定在麻纸表面形成的过滤纸，进而，将该过滤纸卷 折成松散的卷筒，作为过滤芯材设置在过滤主体1的中空结构中。发明人发现，这种经聚丙烯树脂浆液喷淋处理的过滤纸，通过对如聚丙烯树脂这样的塑性相对不良的材料实施浆化处理，进而使其与纸张结合，由此不但能够提高成品的总体强度，而且还能够确保聚丙烯树脂材料均匀分布在过滤主体内，由此实现能够对烟气进行更均匀、更长效的处理，透气性也更为理想；而且，聚丙烯树脂高温下性质稳定、无异味，不会产生对人体有害或影响抽吸感受的气体。
<实施例4>
如图7-8所示，实施例4的烟用过滤部件包括过滤主体1、过滤芯材2和过滤封闭层3，其中，过滤封闭层3为透气度为12000CU的高透气纯木浆纸，过滤主体1的两端均通过食品级水基胶被过滤封闭层3封闭。在本实施例中，过滤主体1采用了通过淀粉模压制成的圆筒结构，在其内部形成有多个通道。过滤芯材2采用通过石英砂高温烧结制成的砂芯并填充在过滤主体1的通道内。
在本实施例中，之所以采用淀粉模压制造过滤主体1，是充分利用了淀粉来源充足，可降解且环保健康，以及便于在主体内模压形成各种结构的通道等优点；之所以采用石英砂高温烧结制造过滤芯材2，是充分利用石英砂过滤性和降温性优良，便于烧结成型出各种形成等优点。在本实施例中，淀粉模压制成的过滤主体1与石英砂高温烧结制成的过滤芯材2的结合，显著提升了实施例4的烟用过滤部件的过滤性和加工性，并大大简化了加工工艺以及大大降低了生产成本。
<实施例5>
图9为本发明实施例5的烟用过滤部件的横截面示意图。如图5所示，该实施例的烟用过滤部件包括过滤主体1、过滤芯材2和过滤封闭层(未示出)，其中，过滤主体1为螺旋纸筒机制成的中空纸筒，其端部由过滤封闭层封闭。过滤 封闭层可采用40g/m 2水刺无纺棉布。
此处特别说明的是，在实施例5中，过滤芯材2由三个独立的内置筒状过滤芯材构成，这些独立的筒状过滤芯材内部填充有聚乳酸纤维丝束，这些聚乳酸纤维丝束的线密度优选3.4ktex。如图9所示，筒状过滤芯材2相邻抵接，依靠筒壁之间的摩擦力和抵压力固定在过滤主体1内，进而，筒状过滤芯材之间的缝隙以及筒状过滤芯材的内部构成气流过滤通道。发明人通过大量试验研究证明，实施例5的这种“内置过滤芯材结构”作为另外一种理想的过滤变形结构，不但能够有效地分流和过滤烟气，而且还能根据实际过滤要求对过滤部件的内部结构作出灵活的调节，提高了加工性。
以上内容仅是本发明的最佳实施例。应强调的是，在不脱离本发明的发明思想的情况下，本领域普通技术人员对本发明所作的各种变型和改进均应落入本发明的保护范围内。

Claims (19)

  1. 一种用于烟草抽吸的过滤部件，其包括过滤主体，过滤芯材以及过滤封闭层，所述过滤主体为中空筒体，所述过滤芯材内置于过滤主体内，所述过滤主体的至少一端由所述过滤封闭层封闭，其特征在于：所述过滤芯材为颗粒状过滤材料、丝束状过滤材料、卷折状过滤材料或类似具有大比表面积形状结构的过滤材料。
  2. 根据权利要求1所述的过滤部件，其特征在于：所述颗粒状过滤材料的粒径为250-3000μm。
  3. 根据权利要求1或2所述的过滤部件，其特征在于：所述颗粒状过滤材料的添加量占所述过滤主体容积的1/5-4/5。
  4. 根据权利要求3所述的过滤部件，其特征在于：所述颗粒状过滤材料的添加量占所述过滤主体容积的1/5。
  5. 根据权利要求1-4中任意一项所述的过滤部件，其特征在于：所述过滤芯材为聚丙烯树脂颗粒。
  6. 根据权利要求5所述的过滤部件，其特征在于：所述聚丙烯树脂颗粒的粒径为750-1500μm。
  7. 根据权利要求1所述的过滤部件，其特征在于：所述丝束状过滤材料采用线密度为3-6ktex的丝束。
  8. 根据权利要求7所述的过滤部件，其特征在于：所述丝束状过滤材料采用线密度为3.2-4.2ktex的丝束。
  9. 根据权利要求1所述的过滤部件，其特征在于：所述卷折状过滤材料以吸附材料为基体，并在其上铺设或喷淋有过滤吸收材料。
  10. 根据权利要求9所述的过滤部件，其特征在于：所述过滤吸收材料为颗 粒状材料、树脂浆液或纤维丝束。
  11. 根据权利要求10所述的过滤部件，其特征在于：所述过滤吸收材料包括陶瓷颗粒、聚丙烯树脂颗粒、聚丙烯树脂浆液、聚乳酸纤维丝束或类似材料。
  12. 根据权利要求1所述的过滤部件，其特征在于：所述过滤主体内部设有多个腔室，所述过滤芯材设置在这些腔室内。
  13. 根据权利要求12所述的过滤部件，其特征在于：所述多个腔室沿所述过滤主体的轴向设置。
  14. 根据权利要求1所述的过滤部件，其特征在于：所述过滤主体内设有独立的筒状过滤芯材。
  15. 根据权利要求14所述的过滤部件，其特征在于：所述筒状过滤芯材为多个，这些筒状过滤芯材相邻抵接设置在所述过滤主体内，以便所述筒状过滤芯材之间的缝隙以及筒状过滤芯材的内部构成气流过滤通道。
  16. 根据权利要求1-15中任意一项所述的过滤部件，其特征在于：所述过滤主体由淀粉模压而成。
  17. 根据权利要求1-16中任意一项所述的过滤部件，其特征在于：所述过滤封闭层的透气度高于12000CU。
  18. 根据权利要求17所述的过滤部件，其特征在于：所述过滤封闭层为透气度高于26000CU的纯木浆纸。
  19. 根据权利要求1-16中任意一项所述的过滤部件，其特征在于：所述过滤主体的通孔横截面总面积不小于5mm 2。
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