CN112006328B - Filter element for tobacco products and tobacco products - Google Patents
Filter element for tobacco products and tobacco products Download PDFInfo
- Publication number
- CN112006328B CN112006328B CN201910400227.8A CN201910400227A CN112006328B CN 112006328 B CN112006328 B CN 112006328B CN 201910400227 A CN201910400227 A CN 201910400227A CN 112006328 B CN112006328 B CN 112006328B
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- Prior art keywords
- section
- filter element
- contraction
- wrapping layer
- venturi
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- 235000019505 tobacco product Nutrition 0.000 title claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 34
- 230000002093 peripheral effect Effects 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 11
- 230000008602 contraction Effects 0.000 claims description 38
- 238000009792 diffusion process Methods 0.000 claims description 31
- 239000000779 smoke Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 3
- 239000004626 polylactic acid Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 18
- 239000003546 flue gas Substances 0.000 abstract description 18
- 239000010410 layer Substances 0.000 description 24
- 235000019504 cigarettes Nutrition 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002861 polymer material Substances 0.000 description 4
- 239000003517 fume Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000003571 electronic cigarette Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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
- A24D3/04—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 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
- A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
The invention provides a filter component of a tobacco product and the tobacco product, wherein the filter component comprises a cylindrical wrapping layer and a cylindrical filter section arranged in a cavity of the cylindrical wrapping layer, and the outer peripheral surface of the filter section is provided with an axially through groove, wherein the groove width of the groove is firstly contracted and then gradually enlarged along the preset airflow direction; the wrapping layer is tightly attached to at least part of the peripheral surface of the filtering section, and the venturi channel is formed after the wrapping layer is combined with the groove. By utilizing the filtering component, the venturi effect can be generated in the filtering component by the flue gas, so that the temperature of the flue gas is reduced, and the sucking experience of consumers is improved.
Description
Technical Field
The invention belongs to the field of tobacco products, and particularly relates to a filter component of a tobacco product and the tobacco product.
Background
This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
At present, with the appearance and continuous development of heating non-combustion technology, the structure of the filtering component in the traditional cigarette product cannot adapt to the experience requirement of consumers, and the improvement requirement of the filtering component of the tobacco product is gradually increased. The filter rod is used for filtering in a heating non-combustion device, so that the problems of inconsistent smoke, high inlet temperature and the like can occur, and the suction experience of consumers is greatly influenced.
Disclosure of Invention
In order to solve the problems, the invention provides a filter component and a tobacco product using the filter component, and the venturi channel is arranged in the filter component, so that the fume is injected into the venturi channel to generate a venturi effect on the fume, and the purpose of actively cooling is achieved, thereby solving the problem of high fume inlet temperature in the existing filter component.
The present invention provides the following.
According to a first aspect of the invention, there is provided a filter element for tobacco products, comprising a cylindrical wrapping layer and a cylindrical filter segment arranged in a cavity of the cylindrical wrapping layer, characterized in that an axially through groove is arranged on the outer peripheral surface of the filter segment, wherein the groove width of the groove is firstly contracted and then gradually enlarged along a preset airflow direction; the wrapping layer is tightly attached to at least part of the peripheral surface of the filtering section, and a venturi channel is formed after the wrapping layer is combined with the groove, so that the venturi effect is generated when the flue gas circulates in the venturi channel along the preset airflow direction.
Preferably, the venturi passage comprises: the contraction section, the throat and the diffusion section are sequentially communicated with each other along the preset airflow direction; the preset airflow direction is the axial direction from the far end of the filtering section to the near end of the filtering section.
Preferably, the constriction section is formed as a constriction channel of trapezoid-like structure, the constriction angle being 15-40 °; the throat is arranged between the contraction section and the diffusion section to form a square channel; the diffusion section is formed into a diffusion channel with a trapezoid-like structure, the diffusion angle is 5-20 degrees, and the diffusion angle of the diffusion section is smaller than the contraction angle of the contraction section.
Preferably, the constriction further comprises: the first contraction section and the second contraction section are sequentially communicated and arranged along the preset airflow direction, wherein the contraction angle of the first contraction section is smaller than that of the second contraction section.
Preferably, the throat has a segment length of 0.1 to 3mm and the groove has a groove width at the throat of 0.1 to 3mm.
Preferably, the ratio of the length of the diffuser section to the length of the filter section is between 0.5 and 0.75.
Preferably, the venturi passage further comprises: the inlet section is arranged at the upstream of the contraction section along the airflow direction, the inlet section is formed into a square channel, the section length is 0.5-5 mm, and the groove width of the groove at the inlet section is 0.5-5 mm.
Preferably, the ratio of the cross-sectional area of the throat section to the maximum cross-sectional area of the constriction section is 1/3 to 1/2.
Preferably, a plurality of grooves which are penetrated in the axial direction are uniformly distributed on the peripheral surface of the filtering section around the axial lead of the filtering section, so that a plurality of venturi channels are formed after the wrapping layer is combined with the plurality of grooves.
Preferably, the inlet flow area of the plurality of venturi channels occupies 3% -50% of the cross-sectional area of the inner cavity of the wrap; the outlet flow areas of the venturi channels occupy 3% -40% of the cross-sectional area of the inner cavity of the wrapping layer; and the inlet flow area is greater than the outlet flow area.
Preferably, the radial depth of the grooves is 0.2 to 5mm, preferably 0.5 to 2mm.
Preferably, the filtering section is made of a polymer material as a matrix, wherein the polymer material comprises one or more of the following: acetate tow, polypropylene tow and polylactic acid.
Preferably, the wrapping layer is formed as a paper fiber product, and the surface of the wrapping layer is formed to include a plurality of micro through holes.
In a second aspect of the invention, there is provided a tobacco product comprising a filter element as described above.
The above at least one technical scheme adopted by the embodiment of the application can achieve the following beneficial effects: according to the application, the venturi channel is arranged on the filter component, so that the venturi effect is generated after the flue gas is injected into the filter component, and the venturi channel is used for forcedly guiding the flue gas, so that the heat energy of the flue gas is further converted into the mechanical energy required by gas flow, the purpose of actively cooling is achieved, the temperature of the flue gas flowing out of the air flow outlet is further reduced, and the sucking taste of consumers is improved. Meanwhile, the venturi channels in the embodiment are distributed on the outer peripheral surface of the filtering section, so that the material exchange and the energy exchange between the smoke and the surrounding environment are further enhanced, the inlet temperature of the smoke is reduced, and the sucking taste of consumers is improved.
It should be understood that the foregoing description is only an overview of the technical solutions of the present invention, so that the technical means of the present invention may be more clearly understood and implemented in accordance with the content of the specification. The following description of the present invention will be made to explain the present invention in detail in order to make the above and other objects, features and advantages of the present invention more apparent.
Drawings
The advantages and benefits described herein, as well as other advantages and benefits, will become apparent to those of ordinary skill in the art upon reading the following detailed description of the exemplary embodiments. The drawings are only for purposes of illustrating exemplary embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic structural view of a filter member of a tobacco product according to a first embodiment of the present invention.
In the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In the present invention, the embodiments of the present invention and the features in the embodiments may be combined with each other without collision. The invention will be described in detail below with reference to the drawings in connection with embodiments.
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example 1
Referring to fig. 1, a schematic structure of a filter segment 1 in a filter element of a tobacco product according to a first embodiment of the present application is shown, and it should be noted that, in the drawings of the present embodiment, unnecessary components, such as a wrapping layer in the filter element, are simplified. However, it will be understood that the outer side surface of the filter segment 1 shown in fig. 1 is coated with a cylindrical wrapping layer, so that at least part of the outer side surface of the filter segment 1 is tightly attached to the inner cavity of the cylindrical wrapping layer, and the filter component of the venturi type tobacco product provided by the application can be formed.
As shown in fig. 1, the outer circumferential surface of the cylindrical filter segment 1 is provided with an axially penetrating groove, wherein the groove width of the groove is firstly contracted and then gradually enlarged along the preset airflow direction; the wrapping layer is tightly attached to at least part of the peripheral surface of the filtering section 1, and a venturi channel is formed after the wrapping layer is combined with the grooves, so that a venturi effect is generated when smoke circulates in the venturi channel along the preset airflow direction.
It should be noted that, in the filter element, the end close to the mouth of the consumer is called the proximal end (i.e. the end B in fig. 1) and is generally used for sucking the filtered smoke from the filter element through the mouth of the consumer, and the end further away from the mouth of the consumer is called the distal end (i.e. the end a in fig. 1) and is generally communicated with a smoke generating device (such as a cigarette or a cartridge in an electronic cigarette) for receiving the unfiltered smoke for filtering. Specifically, the above-mentioned preset air flow direction is an axial direction from the distal end (a end) of the filter segment 1 to the proximal end (B end) of the filter segment.
Specifically, the principle of the above venturi effect is: when the gas is blown through the barrier, the gas pressure is relatively low near the port above the lee side of the barrier, thereby creating adsorption and causing a flow of gas. Therefore, in this embodiment, the venturi channel is formed with an air inlet at the distal end (end a) of the filter element, and an air outlet at the proximal end (end B) of the filter element, and after the flue gas is injected into the filter element from the air inlet, the venturi channel can forcedly guide the flue gas, so that the heat energy of the flue gas is further converted into the mechanical energy required by the gas flow, thereby achieving the purpose of actively cooling, further reducing the temperature of the flue gas flowing out from the air outlet, and improving the sucking taste of consumers. Meanwhile, the venturi channels in the embodiment are distributed on the outer peripheral surface of the filtering section, so that the material exchange and the energy exchange between the smoke and the surrounding environment are further enhanced, the inlet temperature of the smoke is reduced, and the sucking taste of consumers is improved.
Preferably, the venturi passage comprises: the contraction section, the throat and the diffusion section are sequentially communicated with each other along the preset airflow direction; the preset airflow direction is the axial direction from the far end of the filtering section to the near end of the filtering section. For example, as shown in fig. 1, the grooves are composed of a shrinkage groove 11, a throat groove 12 and a diffusion groove 13, and the wrapping layer is omitted in fig. 1, however, it should be understood that the shrinkage groove 11, the throat groove 12 and the diffusion groove 13 may form the above-mentioned shrinkage section, throat and diffusion section when combined with the wrapping layer wrapping the outer circumference of the filter section 1. The combination of the groove structure and the wrapping layer in this embodiment can be more easily implemented to form the venturi passage.
Preferably, the contraction section is formed into a contraction passage with a trapezoid-like structure, and the contraction angle is 15-40 degrees; the throat is arranged between the contraction section and the diffusion section to form a square channel; the diffusion section is formed into a diffusion channel with a trapezoid-like structure, the diffusion angle is 5-20 degrees, and the diffusion angle of the diffusion section is smaller than the contraction angle of the contraction section. The shrinking angle of the shrinking section is specifically an included angle of two side walls of the shrinking groove 11, and the diffusion angle of the diffusion section is specifically an included angle of two side walls of the diffusion groove 13. Compared with the traditional shrinkage and diffusion channel with a conical structure, the shrinkage and diffusion channel with a trapezoid-like structure can enable the formed venturi channel to be easier to process.
Preferably, the constriction further comprises: the first contraction section and the second contraction section are sequentially communicated and arranged along the preset airflow direction, wherein the first contraction section is located at the upstream position of the second contraction section along the preset airflow direction, and the contraction angle of the first contraction section is smaller than that of the second contraction section. For example, as shown in fig. 1, the shrinkage groove 11 further comprises a first shrinkage groove 111 and a second shrinkage groove 112, and the wrapping layer is omitted in fig. 1, however, it should be understood that the first shrinkage groove 111 and the second shrinkage groove 112 may form the first shrinkage section and the second shrinkage section after being combined with the wrapping layer wrapped on the periphery of the filter section 1, and the shrinkage angles of the first shrinkage section and the second shrinkage section are respectively the included angles of the two side walls of the first shrinkage groove 111 and the second shrinkage groove 112, and it should be understood that the greater the included angle is, the more obvious the extrusion effect on the airflow is, and the sectional arrangement of the shrinkage sections adopted in this embodiment can increase the smoothness of the airflow by adjusting the extrusion effect in the airflow circulation.
Preferably, the segment length of the throat, i.e. the length of the throat groove 12 in the axial direction, is 0.1-3 mm, and the groove width of the groove at the throat, i.e. the groove width of the throat groove 12, is 0.1-3 mm.
Preferably, the ratio of the length of the diffuser section to the length of the filter section is between 0.5 and 0.75. The section length ratio of the diffusion section and the whole filtration section is adjusted to be a larger ratio parameter, so that the flue gas is gradually decelerated in the longer diffusion section, the turbulence degree of the flue gas at the outlet is reduced, the speed of the flue gas at the outlet is reduced, and the use experience of consumers is further improved.
Preferably, the venturi passage further comprises: the inlet section is arranged at the upstream of the contraction section along the airflow direction, the inlet section is formed into a square channel, the section length is 0.5-5 mm, and the groove width of the groove at the inlet section is 0.5-5 mm.
Preferably, the ratio of the cross-sectional area of the throat section to the maximum cross-sectional area of the constriction section is 1/3 to 1/2. That is, the area ratio between the outlet cross-sectional area and the inlet cross-sectional area corresponding to the constriction is 1/3 to 1/2, and the groove width ratio between the outlet and the inlet corresponding to the constriction 11 is 1/3 to 1/2 because the radial depths of the grooves are uniform. Through the proportion setting, the venturi passage in the embodiment has better cooling effect.
Preferably, a plurality of grooves which are penetrated in the axial direction are uniformly distributed on the peripheral surface of the filtering section around the axial lead of the filtering section, so that a plurality of venturi channels are formed after the wrapping layer is combined with the plurality of grooves. For example, as shown in fig. 1, the outer peripheral surface of the filter segment 1 of the present embodiment is uniformly provided with three other venturi-shaped grooves in addition to the grooves, so that four venturi pipes which are symmetrically and uniformly distributed around the filter segment 1 are formed after the outer periphery of the filter segment 1 is coated with the coating layer. Thereby avoiding the concentration of the flue gas on one side of the filtering section for filtering.
Preferably, the inlet flow area of the plurality of venturi channels occupies 3% -50% of the cross-sectional area of the inner cavity of the wrap; the outlet flow areas of the venturi channels occupy 3% -40% of the cross-sectional area of the inner cavity of the wrapping layer; and the inlet flow area is greater than the outlet flow area. By setting a proper proportion for the inlet flow area, the problem of poor filtering effect caused by the fact that the filtering component filters excessive smoke at the same time in the embodiment can be avoided; by setting the inlet flow area to be larger than the outlet flow area, the flow rate of the flue gas when flowing out from the proximal end can be reduced.
Preferably, the radial depth of the grooves is 0.2 to 5mm, preferably 0.5 to 2mm. By setting the groove depth of the groove to a more appropriate size, the suction resistance of the filter member can be reduced.
Preferably, the filtering section 1 is formed as a cylindrical solid bar, and the cylindrical solid bar is made of a polymer material as a matrix, wherein the polymer material comprises one or more of the following: acetate tow, polypropylene tow and polylactic acid. Alternatively, the cylindrical solid bar in the present application is of course not limited to a cylindrical shape, and may be, for example, a polygonal prism shape, which is not particularly limited in the present application. And the base material of the filter section is a material commonly used in the cigarette industry, so that the cost is low and the filter section is easy to obtain.
Preferably, the wrapping layer is formed as a paper fiber product, and the surface of the wrapping layer is formed to include a plurality of micro through holes. The paper fiber product is a common material in the cigarette industry, is low in cost and easy to obtain, and improves the heat exchange efficiency of the flue gas through the wrapping layer and the outside through the plurality of micro through holes on the surface of the wrapping layer, so that the temperature of the flue gas is further reduced, and the smoking taste of consumers is improved.
Example two
The invention also provides a tobacco product comprising a filter element as described above and any one or more smoke generating devices.
In this embodiment, the smoke generating device may be a conventional combustion type cigarette product, or may be a novel heating device for heating a non-combustion type cigarette product or an electronic cigarette tobacco tar, which is not particularly limited in the present application.
According to the tobacco product provided by the application, after the smoke is injected into the filter component through the Venturi channel arranged on the filter component, the Venturi channel is used for forcibly guiding the smoke, so that the heat energy of the smoke is further converted into the mechanical energy required by the gas flow, the purpose of actively cooling is achieved, the temperature of the smoke flowing out of the air flow outlet is further reduced, and the smoking taste of consumers is improved. Meanwhile, the venturi channels in the embodiment are distributed on the outer peripheral surface of the filtering section, so that the material exchange and the energy exchange between the smoke and the surrounding environment are further enhanced, the inlet temperature of the smoke is reduced, and the sucking taste of consumers is improved.
While the spirit and principles of the present invention have been described with reference to several particular embodiments, it is to be understood that the invention is not limited to the disclosed embodiments nor does it imply that features of the various aspects are not useful in combination, nor are they useful in any combination, such as for convenience of description. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (11)
1. A filter element of tobacco products, which comprises a cylindrical wrapping layer and a cylindrical filter segment arranged in a cavity of the cylindrical wrapping layer, and is characterized in that,
The outer peripheral surface of the filtering section is provided with an axially through groove, wherein the groove width of the groove is firstly contracted and then gradually enlarged along the preset airflow direction;
The wrapping layer is tightly attached to at least part of the peripheral surface of the filtering section, and the wrapping layer and the grooves are combined to form a venturi channel, so that a venturi effect is generated when smoke circulates in the venturi channel along the preset airflow direction;
The venturi passage includes: the contraction section, the throat and the diffusion section are sequentially communicated with each other along the preset airflow direction;
wherein the preset airflow direction is an axial direction from the far-mouth end of the filtering section to the near-mouth end of the filtering section;
The contraction section is formed into a contraction channel with a trapezoid-like structure, and the contraction angle is 15-40 degrees; the throat is arranged between the contraction section and the diffusion section to form a square channel; the diffusion section is formed into a diffusion channel with a trapezoid-like structure, the diffusion angle is 5-20 degrees, and the diffusion angle of the diffusion section is smaller than the contraction angle of the contraction section;
The contracted section is further formed to include:
The first contraction section and the second contraction section are sequentially communicated and arranged along the preset airflow direction, wherein the contraction angle of the first contraction section is smaller than that of the second contraction section;
A plurality of grooves which are penetrated in the axial direction are uniformly distributed on the peripheral surface of the filtering section around the axial lead of the filtering section, so that a plurality of venturi channels are formed after the wrapping layer and the grooves are combined;
The filtering section is a cylindrical solid bar.
2. The filter element of claim 1, wherein the throat has a segment length of 0.1 to 3mm and the flutes have a flute width at the throat of 0.1 to 3mm.
3. The filter element of claim 1, wherein the ratio of the length of the diffuser section to the length of the filter section is between 0.5 and 0.75.
4. The filter element of claim 1, wherein the venturi passage further comprises:
the inlet section is arranged at the upstream of the contraction section along the airflow direction, the inlet section is formed into a square channel, the section length is 0.5-5 mm, and the groove width of the groove at the inlet section is 0.5-5 mm.
5. The filter element of claim 1, wherein the ratio of the cross-sectional area of the throat to the maximum cross-sectional area of the constriction is 1/3 to 1/2.
6. The filter element of claim 1, wherein the filter element is,
The inlet flow areas of the venturi channels occupy 3% -50% of the cross-sectional area of the inner cavity of the wrapping layer;
The outlet flow areas of the venturi channels occupy 3% -40% of the cross-sectional area of the inner cavity of the wrapping layer; and
The inlet flow area is greater than the outlet flow area.
7. A filter element according to claim 1, wherein the grooves have a radial depth of 0.2 to 5mm.
8. The filter element of claim 7, wherein the grooves have a radial depth of 0.5 to 2mm.
9. The filter element of claim 1, wherein the filter segment is made of a polymeric material as a matrix, wherein the polymeric material comprises one or more of: acetate tow, polypropylene tow and polylactic acid.
10. The filter element of claim 1, wherein the wrap is formed as a paper fiber product and the surface of the wrap is formed to include a plurality of micro-vias.
11. A tobacco product comprising a filter element according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910400227.8A CN112006328B (en) | 2019-05-13 | 2019-05-13 | Filter element for tobacco products and tobacco products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910400227.8A CN112006328B (en) | 2019-05-13 | 2019-05-13 | Filter element for tobacco products and tobacco products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112006328A CN112006328A (en) | 2020-12-01 |
| CN112006328B true CN112006328B (en) | 2024-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910400227.8A Active CN112006328B (en) | 2019-05-13 | 2019-05-13 | Filter element for tobacco products and tobacco products |
Country Status (1)
| Country | Link |
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| CN (1) | CN112006328B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109090705A (en) * | 2018-06-27 | 2018-12-28 | 当阳鸥翼德电子科技有限公司 | The novel low resistance to suction furrowfilter rod of one kind and preparation method |
| CN210248361U (en) * | 2019-05-13 | 2020-04-07 | 湖北中烟工业有限责任公司 | Filter element for a tobacco product and tobacco product |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB639174A (en) * | 1948-03-05 | 1950-06-21 | Bernard James Hillier | Improvements relating to cigarette holders |
| US3490461A (en) * | 1967-04-20 | 1970-01-20 | Philip Morris Inc | Cigarette ventilation |
| GB201118639D0 (en) * | 2011-10-28 | 2011-12-07 | British American Tobacco Co | A device for delivering gasseous flow to the mouth of the user |
| RU2630359C2 (en) * | 2012-09-28 | 2017-09-07 | Филип Моррис Продактс С.А. | Smoked product with reduced mouthpiece staining |
| CN104939314A (en) * | 2015-06-25 | 2015-09-30 | 云南中烟工业有限责任公司 | Three-component composite cigarette holder |
| CN107568788A (en) * | 2017-09-11 | 2018-01-12 | 云南中烟工业有限责任公司 | A kind of three-stage cigarette filter in the tunnel containing air-flow |
| CN108185517A (en) * | 2017-12-18 | 2018-06-22 | 云南中烟工业有限责任公司 | A kind of new cigarette for the cigarette that do not burn for heating |
-
2019
- 2019-05-13 CN CN201910400227.8A patent/CN112006328B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109090705A (en) * | 2018-06-27 | 2018-12-28 | 当阳鸥翼德电子科技有限公司 | The novel low resistance to suction furrowfilter rod of one kind and preparation method |
| CN210248361U (en) * | 2019-05-13 | 2020-04-07 | 湖北中烟工业有限责任公司 | Filter element for a tobacco product and tobacco product |
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| CN112006328A (en) | 2020-12-01 |
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