CN217407774U - Heating cigarette filter stick with spiral hollow structure - Google Patents

Heating cigarette filter stick with spiral hollow structure Download PDF

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Publication number
CN217407774U
CN217407774U CN202221210743.8U CN202221210743U CN217407774U CN 217407774 U CN217407774 U CN 217407774U CN 202221210743 U CN202221210743 U CN 202221210743U CN 217407774 U CN217407774 U CN 217407774U
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China
Prior art keywords
hollow
spiral
section
spiral hollow
cigarette filter
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CN202221210743.8U
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Chinese (zh)
Inventor
崔华鹏
郭吉兆
陈黎
樊美娟
刘瑞红
陈满堂
郭军伟
潘立宁
王冰
刘绍锋
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Zhengzhou Tobacco Research Institute of CNTC
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Zhengzhou Tobacco Research Institute of CNTC
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Abstract

A heating cigarette filter stick containing a spiral hollow structure comprises a hollow section and an acetate fiber section which are combined together through cigarette tipping paper, and is characterized in that: a spiral hollow passage is arranged in the hollow section, and the two end openings of the hollow section are both in a bell mouth structure and are communicated with the spiral hollow passage; the far lip end of the acetate fiber section is of a countersunk structure and is abutted against the bell mouth at one end of the hollow section, the hollow section is made of plastic materials, and the spiral hollow channel inside the hollow section is manufactured through an injection molding process. The filter stick greatly increases the distance for heating cigarette aerosol to pass through by the spiral surrounding hollow design, has obvious long-distance cooling effect on the aerosol formed by heating cigarette cores, reduces the interception effect on the aerosol, has higher aerosol release amount, and improves the sensory quality of products.

Description

Heating cigarette filter stick with spiral hollow structure
Technical Field
The utility model belongs to the technical field of tobacco, in particular to heating cigarette filter rod who contains spiral hollow structure.
Background
The heating cigarette utilizes a heating appliance to heat the tobacco material, so that the tobacco material releases smoke and forms aerosol, and the aerosol enters the oral cavity of a human body after passing through the filter stick. The heating temperature of the heating appliance is usually higher than 300 ℃, and the aerosol formed by the released smoke components under the temperature condition usually has higher temperature, and can generate obvious scalding feeling when directly entering the oral cavity of a consumer, thereby influencing the user experience. Therefore, reducing the filter rod outlet temperature of heated cigarette aerosols is an important direction of product development. More filter stick cooling designs such as polylactic acid folding materials, acetate fiber length extension and the like are available, and some aerosol temperature reduction effects are achieved. However, the designs greatly increase the entrapment of the aerosol in the actual use process, so that the release amount of the aerosol outlet is obviously reduced, and the sensory quality of the product is greatly reduced. How to reduce the aerosol temperature on the premise of reducing the entrapment of the filter stick to the aerosol as much as possible is an important direction for the development of heating the cigarette filter stick.
Chinese patents also disclose hollow filter technology, such as a heated cigarette filter rod (202110599704.5) applied by nynan zhong tobacco corporation, which comprises a smoke extraction section and a functional filter rod section, wherein the smoke extraction section is of a hollow structure, and the hollow structure is mainly used for smoke extraction, mixing and cooling. The tobacco company in Henan also applies for a preparation method (202010313321.2) of a hollow cooling filter stick, and adds a powdery or granular heat-conducting cooling material in the forming of the tows, the diameter of the inner cavity part of the hollow stick changes from contraction to amplification alternately, aerosol in the smoke also undergoes the processes of collision condensation during turbulent collision and expansion and secondary atomization during contraction, the cooling effect is further strengthened, the burning feeling and the irritation during suction are obviously reduced, the atomization amount of cigarettes can be ensured, and the experience feeling of a smoker is met.
Disclosure of Invention
The utility model aims at providing a heating cigarette filter rod that contains spiral hollow structure based on above-mentioned prior art situation, this filter rod passes through the cavity design that the spiral encircleed, greatly increased aerosol through hollow distance, has obvious long distance cooling effect to the aerosol that the wick heating formed to reduced the effect of holding back to aerosol, had higher aerosol release amount, improved the sense organ quality of product.
The utility model discloses a realize through following technical scheme:
a heated cigarette filter rod containing a spiral hollow structure comprising a hollow section and an acetate section combined together by a cigarette tipping paper, wherein: a spiral hollow passage is arranged in the hollow section, and the two end openings of the hollow section are both in a bell mouth structure and are communicated with the spiral hollow passage; the far lip end of the acetate fiber section is of a countersunk structure and is abutted with the bell mouth at one end of the hollow section.
In the center of the utility model, the hollow section is made of plastic material, and the spiral hollow channel inside the hollow section is manufactured by an injection molding process; the plastic material is any one of polypropylene, polystyrene and polyethylene. The injection molding process and conditions of the spiral hollow section meet the requirements of selected materials, and the used injection mold has an array distribution spiral hollow structure.
The processing technology of the spiral hollow section comprises the following steps: and (3) performing injection molding by using a plastic mold with an array distribution spiral hollow structure and adopting a polypropylene particle material under the conditions of injection temperature of 180 ℃ and injection pressure of 80 bar, and taking out the spiral hollow section by rotation after the injection molding is finished.
The depth of the countersunk structure is 1/3 to 2/3, preferably 1/2 of the length of the acetate fiber segment.
Spiral hollow passageway is around the axis direction spiral setting of cavity section, and the biggest outer fringe diameter of spiral hollow passageway is 3/4 of cavity section diameter, and the cross-section aperture of spiral hollow passageway is 1.5~4 mm.
The pitch of spiral hollow channel is 2~6 mm, and the initial angle of spiral is 5~ 85.
The bellmouths at the two side ports of the hollow section are connected with the spiral hollow channel in the inward direction of the small caliber, the hole diameters of the bellmouths are covered with the spiral hollow channel, and the large caliber of the bellmouths is outward to form the port of the spiral hollow section.
The utility model discloses a heating cigarette filter rod is applicable to current heating cigarette.
The utility model has the advantages that: this technical scheme has adopted inside to be provided with the hollow spiral section of spiral as the main transmission section of aerosol, and this design has the advantage that effectively reduces the aerosol temperature and increase release smoke volume simultaneously. Compared with other filter stick structures, the hollow structure has lower entrapment on the aerosol, and can better reduce the loss of the aerosol; the hollow spiral design greatly increases the distance that the aerosol passes through, improves the heat conduction efficiency of the aerosol and has better cooling effect; the bell mouth of the spiral hollow section is convenient to be connected with the cigarette core section, so that large-area aerosol can be effectively led out; in addition, through the design of spiral angle, screw pitch and the like of the spiral hollow, the quantitative design of the aerosol passing distance can be realized under the limited length of the filter stick. The utility model discloses a reasonable in design, simple structure, it is obvious in two aspects of heating cigarette aerosol cooling and increase the release of cigarette volume, provide a new solution for heating cigarette product development and improvement heating cigarette quality.
The utility model discloses still can regard as experimental filter tip for the relevant data of test filter tip cavity passageway route length, bore size, air current operation of circling is relatively.
Drawings
FIG. 1 is a schematic view of the present invention,
FIG. 2 is a schematic sectional view of the hollow section and the acetate fiber section of the present invention,
fig. 3 is a schematic view of the hollow section of the middle screw of the present invention.
Description of reference numerals: 1. the cigarette tipping paper comprises a hollow section, 11, a spiral hollow channel, 12, a horn mouth structure, 2, an acetate fiber section, 21, a countersunk head structure and 3.
Detailed Description
The utility model discloses the following further description of taking in conjunction with the figure:
as described in fig. 1-3: a heating cigarette filter stick containing a spiral hollow structure comprises a hollow section 1 and an acetate fiber section 2 which are combined together through cigarette tipping paper, wherein: a spiral hollow passage 11 is arranged in the hollow section 1, and both end openings of the hollow section are of bell mouth structures 12 and are communicated with the spiral hollow passage 11; the far lip end of the acetate fiber section 2 is a countersunk structure 21 and is abutted with the bell mouth at one end of the hollow section.
The processing technology of the spiral hollow section 1 comprises the following steps: and (3) performing injection molding by using a plastic mold with an array distribution spiral hollow structure and adopting a polypropylene particle material under the conditions of injection temperature of 180 ℃ and injection pressure of 80 bar, and taking out the spiral hollow section by rotation after the injection molding is finished.
The outside of spiral hollow section 1 is the cylinder structure, and its external diameter is 7.6 mm, and its inside spiral hollow channel 11 is around axis direction spiral setting, and spiral hollow channel 11's cross-sectional aperture is 2.5 mm, and spiral hollow channel 11's pitch is 3 mm, and the initial angle of spiral is 30.
The bellmouth structure 12 at the port of the two sides of the hollow section 1 is connected with the spiral hollow channel 11 in the radial direction of the small opening, the hole diameter of the bellmouth structure is covered on the part of the spiral hollow area, and the large diameter of the bellmouth structure is outward to form the port of the spiral hollow section 1.
When the heating cigarette filter stick is used specifically, the bell mouth of the heating cigarette filter stick is connected with the cigarette core directly or after being combined through other filter stick structures, and the bell mouth is used for transmitting aerosol formed by the cigarette core.
Compared with an axial hollow filter stick, the filter stick with the design parameters and the spiral hollow structure for heating the cigarette has the advantages that the effective path is increased by 2.67 times, and the aerosol temperature can be reduced by 7-12 ℃ through simulation calculation.

Claims (7)

1. A heating cigarette filter stick containing a spiral hollow structure comprises a hollow section and an acetate fiber section which are combined together through cigarette tipping paper, and is characterized in that: a spiral hollow passage is arranged in the hollow section, and the two end openings of the hollow section are both in a bell mouth structure and are communicated with the spiral hollow passage; the far lip end of the acetate fiber section is of a countersunk structure and is abutted with the bell mouth at one end of the hollow section.
2. A heated cigarette filter rod containing a spiral hollow structure according to claim 1 wherein: the hollow section is made of plastic material, and the spiral hollow channel inside the hollow section is manufactured through an injection molding process.
3. A heated cigarette filter rod containing a spiral hollow structure according to claim 1 wherein: the depth of the countersunk head structure is 1/3-2/3 of the length of the acetate fiber segment.
4. A heated cigarette filter rod containing a spiral hollow structure according to claim 2 wherein: the plastic material is any one of polypropylene, polystyrene and polyethylene.
5. A heated cigarette filter rod containing a spiral hollow structure according to claim 1 wherein: spiral hollow passageway is around the axis direction spiral setting of cavity section, and the biggest outer fringe diameter of spiral hollow passageway is 3/4 of cavity section external diameter, and the cross-section aperture of spiral hollow passageway is 1.5~4 mm.
6. A heated cigarette filter rod containing a spiral hollow structure according to claim 1 or 2 or 3 wherein: the pitch of spiral hollow channel is 2~6 mm, and the initial angle of spiral is 5~ 85.
7. A heated cigarette filter rod containing a spiral hollow structure according to claim 1 wherein: the bellmouths at the two side ports of the hollow section are connected with the spiral hollow channel in the inward direction of the small caliber, the hole diameters of the bellmouths are covered with the spiral hollow channel, and the large caliber of the bellmouths is outward to form the port of the spiral hollow section.
CN202221210743.8U 2022-05-20 2022-05-20 Heating cigarette filter stick with spiral hollow structure Active CN217407774U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221210743.8U CN217407774U (en) 2022-05-20 2022-05-20 Heating cigarette filter stick with spiral hollow structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221210743.8U CN217407774U (en) 2022-05-20 2022-05-20 Heating cigarette filter stick with spiral hollow structure

Publications (1)

Publication Number Publication Date
CN217407774U true CN217407774U (en) 2022-09-13

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ID=83187653

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221210743.8U Active CN217407774U (en) 2022-05-20 2022-05-20 Heating cigarette filter stick with spiral hollow structure

Country Status (1)

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CN (1) CN217407774U (en)

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