Filter part for cigarette
阅读说明:本技术 烟用过滤部件 (Filter part for cigarette ) 是由 钱剑冰 詹保鸣 花琴 于 2019-09-18 设计创作,主要内容包括: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。本发明的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。通过本发明的烟用过滤部件,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。(The invention provides a filter component for tobacco smoking, which comprises a filter main body, a filter core material and a filter sealing layer. The filtering main body is a hollow cylinder, and the filtering core material is arranged in the filtering main body. At least one end of the filter body is closed by a filter closing layer. The filter core material is granular filter material, tow-shaped filter material, roll-folded filter material or similar filter material with a shape structure with large specific surface area. The cigarette filter component can be widely applied to the field of tobacco, and can be arranged in cigarettes or in related accessories. The cigarette filter component can effectively filter moisture and tar in smoke and ensure good smoking feeling and effect.)
1. A filter component for tobacco suction comprises a filter main body, a filter core material and a filter sealing layer, wherein the filter main body is a hollow cylinder, the filter core material is arranged in the filter main body, at least one end of the filter main body is sealed by the filter sealing layer, and the filter component is characterized in that: the filter core material is a granular filter material, a tow-shaped filter material, a roll-folded filter material or a similar filter material with a large specific surface area and a shape structure.
2. The filter element of claim 1, wherein: the particle size of the granular filter material is 250-3000 mu m.
3. A filter element according to claim 1 or 2, wherein: the addition amount of the granular filter material accounts for 1/5-4/5 of the volume of the filter body.
4. A filter element according to claim 3, wherein: the amount of particulate filter material added was 1/5 of the volume of the filter body.
5. A filter element according to any one of claims 1-4, wherein: the filter core material is polypropylene resin particles.
6. The filter element of claim 5, wherein: the particle size of the polypropylene resin particles is 750-1500 mu m.
7. The filter element of claim 1, wherein: the tow-shaped filter material adopts tows with the linear density of 3-6 ktex.
8. The filter element of claim 7, wherein: the tow-shaped filter material adopts tows with the linear density of 3.2-4.2 ktex.
9. The filter element of claim 1, wherein: the roll-folded filter material takes an adsorption material as a matrix, and the filter absorption material is laid or sprayed on the matrix.
10. The filter element of claim 9, wherein: the filtering and absorbing material is granular material, resin slurry or fiber tows.
11. The filter element of claim 10, wherein: the filtering and absorbing material comprises ceramic particles, polypropylene resin slurry, polylactic acid fiber tows or similar materials.
12. The filter element of claim 1, wherein: the filter core material is arranged in the cavities.
13. The filter element of claim 12, wherein: the plurality of chambers are arranged in an axial direction of the filter body.
14. The filter element of claim 1, wherein: an independent cylindrical filter core material is arranged in the filter main body.
15. The filter element of claim 14, wherein: the air flow filtering device comprises a filtering main body, a plurality of cylindrical filtering core materials and an air flow filtering channel, wherein the cylindrical filtering core materials are adjacently abutted and arranged in the filtering main body, so that gaps among the cylindrical filtering core materials and the interior of the cylindrical filtering core materials form the air flow filtering channel.
16. A filter element according to any one of claims 1-15, wherein: the filtering main body is formed by molding starch.
17. A filter element according to any one of claims 1-16, wherein: the air permeability of the filtering closed layer is higher than 12000 CU.
18. The filter element of claim 17, wherein: the filtering sealing layer is made of pure wood pulp paper with air permeability higher than 26000 CU.
19. A filter element according to any one of claims 1-16, wherein: the total area of the cross section of the through hole of the filtering main body is not less than 5mm2。
Technical Field
The invention relates to the field of smoke treatment in the tobacco industry, in particular to a smoke filtering technology for smoke suction.
Background
In recent years, the economic development of the tobacco industry is rapid, the sales of traditional cigarettes is continuously promoted, and meanwhile, the novel tobacco technology is continuously innovated and developed. With the increasing requirements of people on healthy life, the control of smoke treatment in the tobacco industry is increasingly strict. For traditional cigarettes, because the smoke contains a large amount of harmful substances such as nicotine and tar, a fiber filter is often used as a smoke treatment component to filter the smoke. To enhance filtration, cigarette product manufacturers often attach external filters at cigarette filter segments to filter smoke.
However, in the field of heating non-combustible tobacco, smoke is sucked and carries substances such as tobacco tar, nicotine and polyhydric alcohol besides aromatic substances, so that the smoke generates a feeling of oral irritation and is harmful to the health of consumers. Taking the heating non-combustible smoking product of the brand of Wangbaolu with the highest market share at present as an example, the heating non-combustible smoking product treats smoke by assembling a fiber cylinder, a polyurethane fiber film and a fiber filter tip as smoke treatment components. That is, the polyurethane fiber membrane is rolled into a cylindrical shape, and the smoke is filtered by using the gaps existing between the folds of the fiber membrane, and the channel formed by the gaps existing between the folds of the fiber membrane is consistent with the flow direction of the smoke, so that no obvious suction resistance exists. However, since polyurethane is a polymer material, the production method is complicated and expensive; more importantly, relevant research reports show that the polyurethane volatilizes toxic substances after being heated at high temperature, so that the health of human bodies is endangered.
Currently, the industry proposes: the calcium oxide particles are used as a filter component to be placed in a cigarette holder filter of a cigarette or in a cigarette which is not burnt when heated by utilizing the characteristic that the calcium oxide can adsorb oily and aqueous substances, but the calcium oxide particles have special chemical smell so as to influence the smoking taste of tobacco and derivatives thereof. In addition, since the calcium oxide particles are granular, they are difficult to hold in the cigarette which is not burned by heating, and for this reason, the position and volume of the calcium oxide particles in the cigarette which is not burned by heating have been controlled by providing the ventilation partition plate in the prior art, but there is a problem in such a structure that: the calcium oxide particles can cause extrusion of the tobacco derivative segment, thereby causing blockage of the interior of the ventilation duct, so as to increase the smoking resistance.
Therefore, the industry urgently hopes to provide a non-toxic and non-peculiar smell cigarette filter component without obvious smoking resistance so as to be widely applied to the smoke filtration of various tobacco products.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a filter element for cigarettes, which can effectively filter moisture and tar in smoke, can ensure good smoking feeling and effect, and can be widely applied to various cigarettes or smoking sets.
Based on the inventive concept, the application provides the following technical scheme.
That is, the present invention provides a filter member for tobacco smoking, which includes a filter main body, a filter core material and a filter sealing layer, wherein the filter main body is a hollow cylinder, the filter core material is embedded in the filter main body, at least one end of the filter main body is sealed by the filter sealing layer, and the filter core material is a granular filter material, a tow-like filter material, a roll-folded filter material or a similar filter material having a shape structure with a large specific surface area. The filter component provided by the invention adopts the organic combination of the specific structure and the filter material (such as granular filter material, tow-shaped filter material or folded filter material) with the shape structure with large specific surface area, so that the filter effect on moisture, tar and the like in smoke is effectively improved, and meanwhile, the filter material can be ensured not to block the ventilation channel of the filter component, thereby providing good suction feeling and effect.
As an important aspect of the present invention, for the particle-type filter material, the smaller the particle size thereof, the larger the specific surface area, and accordingly, the better the adsorptive filtration effect on the smoke gas, but if the particle size is too small, the gap between the particle-type filter materials is affected, so that the air permeation effect is greatly reduced, thereby increasing the smoking resistance, and thus reducing the smoking feeling. In view of the above, the inventors have found through extensive experimental studies that the particle size of the particulate filter material is 250-.
Similarly, the addition amount of the particle type filter material also has an important influence on the filtering and suction effects, and for this reason, through a great deal of experimental research, the inventor found that the addition amount of the particle type filter material accounts for 1/5-4/5 of the volume of the filter body, and more preferably, the addition amount of the particle type filter material accounts for 1/5 of the volume of the filter body, which can effectively solve the problem.
The inventor researches and discovers that polypropylene resin has the advantages of highest water and oil absorption efficiency and largest adsorption amount in a plurality of filter materials, so that polypropylene resin particles are preferred as the filter core material in the invention; further experimental studies have revealed that polypropylene resin particles are also characterized by swelling and softening after water adsorption, and therefore, it is preferable to set the particle size of the polypropylene resin particles to 750-1500 μm in view of the filtration and adsorption effect, the ventilation effect, and the like.
Another important aspect of the present invention is that, as another form of the filter core material having a shape structure with a large specific surface area, the present invention proposes that the filter material is a tow-type filter material. The inventors have found in the development of such filter materials that for tow-type filter materials, the linear density of the tow directly affects the magnitude and stability of the tow suction resistance. In order to solve this problem, the inventors have found through extensive experimental studies that the tow-like filter material is preferably a tow having a linear density of 3 to 6 ktex; more preferably, the tow-like filter material is tow having a linear density of 3.2 to 4.2 ktex.
Another important aspect of the present invention is that, as another form of the filter core material having a shape structure with a large specific surface area, the present invention proposes that the filter material is a roll-folded filter material. The roll-folding type filtering material makes full use of the film-forming property of the material, makes the adsorbing material into a film, further rolls and folds the film into a cylinder shape, and realizes effective filtration of flue gas when the flue gas flows through a gap formed by roll folding. For the roll-folded filter material, it is preferable that the adsorbing material is used as a matrix, and a filter absorbing material is laid or sprayed on the adsorbing material, wherein the filter absorbing material can be granular material, resin slurry or fiber tows, preferably ceramic particles, polypropylene resin slurry, polylactic acid fiber tows or the like.
Another important aspect of the invention is that the interior of the filter body may be provided with a plurality of cavities in which the filter core is arranged. The plurality of chambers are preferably arranged in the axial direction of the filter body.
Another important aspect of the present invention is that a separate cylindrical filter core is provided in the filter body. More preferably, the number of the cylindrical filter core members is plural, and the cylindrical filter core members are disposed in the filter main body so as to abut against each other, so that the gaps between the cylindrical filter core members and the inside of the cylindrical filter core members constitute the air flow filtration passages.
In addition, the filter body is preferably molded from starch. The inventor finds that the filtering main body adopts starch, can fully utilize the advantages of sufficient starch source, degradability, environmental protection, health, convenience for forming channels with various structures in the main body by compression molding and the like.
In addition, the air permeability of the filtering closed layer is preferably higher than 12000 CU; more preferably, the filtering closing layer is made of pure wood pulp paper with air permeability higher than 26000 CU. The total area of the cross section of the through hole of the filter body is not less than 5mm2。
In conclusion, the cigarette filter part provided by the invention can effectively isolate tobaccos and derivatives thereof, so that smoke can be fully dried and filtered, the smoking smoke resistance is small, the smoking taste can be ensured, and the requirements of health and environmental protection can be met, so that the cigarette filter part is suitable for being widely applied to the tobacco fields of cigarettes, heating non-combustion cigarettes, steam electronic cigarettes and the like.
Drawings
Fig. 1 is a schematic view showing a structure of a filter member for cigarettes of embodiment 1 of the present invention.
Figure 2 is a schematic cross-sectional view of the tobacco filter component of example 1.
Figure 3 is a schematic diagram showing the structure of a filter element for cigarettes of
Figure 4 is a schematic cross-sectional view of a filter component for a cigarette of example 2.
Fig. 5 is a schematic view showing the structure of a filter member for cigarettes of
Figure 6 is a schematic cross-sectional view of a filter component for a cigarette of example 3.
Fig. 7 is a schematic view showing the structure of a filter member for cigarettes of embodiment 4 of the present invention.
Figure 8 is a schematic cross-sectional view of a filter component for a cigarette of example 4.
Figure 9 is a schematic cross-sectional view of a tobacco filter component of example 5 of the invention.
In the drawings:
1-Filter body 2-Filter core 3-Filter seal
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
< example 1>
As shown in fig. 1 to 2, a filter member for a cigarette according to embodiment 1 of the present invention includes a filter main body 1, a
It should be particularly noted that, for example 1, the inventor conducted intensive studies based on many factors such as air permeability, flexibility and suction resistance in smoke filtration, and through a large number of experiments, it was confirmed that the filtering closed
< example 2>
As shown in fig. 3 to 4, the filter component for cigarette of
In example 2, highly air-permeable pure wood pulp paper having an air permeability of 26000CU was used as the
Furthermore, the inventor also finds that the ceramic particles not only have the water and oil absorption characteristics, but also have excellent cooling effect, and can effectively avoid the over-heating of the smoke temperature during smoking, and based on the ceramic particles adopted by the
< example 3>
As shown in fig. 5 to 6, the filter member for cigarette of example 3 includes a filter main body 1, a
In example 3, hemp paper having an air permeability of 24000CU was used as the
< example 4>
As shown in fig. 7 to 8, the filter element for cigarette of example 4 includes a filter main body 1, a
In the embodiment, the starch molding is adopted to manufacture the filtering main body 1, so that the advantages of sufficient starch source, degradability, environmental protection, health, convenience for molding channels with various structures in the main body and the like are fully utilized; therefore, the
< example 5>
Figure 9 is a schematic cross-sectional view of a tobacco filter component of example 5 of the invention. As shown in FIG. 5, the filter element for cigarette of this embodiment comprises a filter body 1, a
It is to be noted that, in example 5, the
The foregoing is only the preferred embodiment of the present invention. It should be emphasized that variations and modifications of the present invention, which may occur to those skilled in the art, are intended to be within the scope of the present invention without departing from the inventive concepts of the present invention.
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