Summary of the invention
The disclosure provides a kind of mouth stick for smoking article, including ventilation section,
Tubular cavity is provided in ventilation section;
Tubular cavity includes:
At least one section of wealthy diameter pipe, the lumen cross-sectional area of wealthy diameter pipe any position is all larger than or putting down equal to tubular cavity
Equal cross-sectional area, and
At least one section of narrow-bore tube, the lumen cross-sectional area of narrow-bore tube any position are respectively less than the average traversal of tubular cavity
Face area.
In some embodiments, the area ratio of the maximum cross section of tubular cavity and minimum cross-section be 25:(1~
15) (such as 25:1~3,25:3~5,25:5~7,25:7~9,25:9~11,25:11~13 or 15:13~15).
In some embodiments, the maximum cross section area of tubular cavity is 15~25mm2(such as 16,18,20,22
Or 24mm2)。
In some embodiments, the maximum cross-section area of wealthy diameter pipe is 15~25mm2(such as 16,18,20,22 or
24mm2)。
In some embodiments, the cross-sectional area of tubular cavity is 1~10mm2(such as 2,4,6 or 8mm2)。
In some embodiments, the cross-sectional area of narrow-bore tube is 1~10mm2(such as 2,4,6 or 8mm2)。
In some embodiments, the length of wealthy diameter pipe is 1~15mm (such as 2,4,6,8,10,12 or 14mm).
In some embodiments, the length of narrow-bore tube is 1~15mm (such as 2,4,6,8,10,12 or 14mm).
In some embodiments, the area ratio of the maximum cross section of tubular cavity and minimum cross-section be 25:(1~
, such as 25:2~4, such as 25:3 5).
In some embodiments, the maximum cross section area of tubular cavity is 18~21mm2。
In some embodiments, the maximum cross-section area of wealthy diameter pipe is 18~21mm2。
In some embodiments, the cross-sectional area of tubular cavity is 2~5mm2。
In some embodiments, the cross-sectional area of narrow-bore tube is 2~5mm2。
In some embodiments, the length of wealthy diameter pipe is 3~7mm.
In some embodiments, the length of narrow-bore tube is 3~7mm.
In some embodiments, cross section (outer wall profile) shape that mouth stick is is circle.
In some embodiments, cross section (profile) shape of tubular cavity is circle.
In some embodiments, tubular cavity includes being sequentially connected in series: the first narrow-bore tube section, the first wealthy diameter pipe
Section, the second narrow-bore tube section and the second wealthy diameter pipeline section.
In some embodiments, tubular cavity includes being sequentially connected in series: the first narrow-bore tube section, the first wealthy diameter pipe
Section, the second narrow-bore tube section, the second wealthy diameter pipeline section and third narrow-bore tube section.
In some embodiments, the profile on the section by mouth mandrel line of the inner wall of tubular cavity is waveform,
Such as trapezoidal waveform, sinusoidal waveform, semicircle waveform, triangular waveform, square waveform or irregular waveform.
In some embodiments, mouth stick, further includes fillter section, and fillter section and ventilation section are connected in series.
In some embodiments, the length for section of ventilating and the length ratio of fillter section are 20~35:4~6.
In some embodiments, fillter section is bar-like fibre bundle, such as rodlike Diacetate cellulose tow, rodlike poly- cream
Sour fibre bundle etc..
In some embodiments, mouth stick is the mouth stick for heating the tobacco product that do not burn.
In some respects, the disclosure provides a kind of smoking article, the mouth stick including any one of smoke matrix section and the disclosure,
Mouth stick and smoke matrix section are connected in series.
In some embodiments, mouth stick includes the ventilation section being connected in series and fillter section, and ventilation section is located at smoke matrix
Between section and fillter section.
In some embodiments, smoke host material is filled in the smoke matrix section.
In some embodiments, the smoking article is to heat the tobacco product that do not burn.
In some embodiments, smoke matrix section contains tobacco component.
In some embodiments, smoke matrix section includes smoke host material.
In some embodiments, smoke host material refer to it is heated after can generate the material that can suck cigarette and/or mist.
In some embodiments, smoke host material is basic homogeneous.
In some embodiments, smoke host material contains tobacco component.
In some embodiments, smoke matrix section contains filamentary material, is such as selected from: natural baccy silk, reconstituted tobacco silk,
Natural wooden fiber's silk, natural herbaceous stem fiber filament, artificial synthetic fiber silk, or combinations thereof.
In some embodiments, smoke matrix section contains flaky material, is such as selected from: reconstituted tobacco sheets, non-tobacco plant
Fibre plate, artificial synthetic fiber piece, or combinations thereof.
In some embodiments, smoke matrix section contains bulk material, is such as selected from: tobacco particle, cabo particle, porous
Particle is adsorbed, or combinations thereof.
In some embodiments, smoke matrix section contains gel-like material, is such as selected from: gel particle, Gel composite sheets
Base, or combinations thereof.
In some embodiments, smoke host material is also containing the auxiliary material of one or more combination, such as: aerosol
Agent, viscous stick, fragrance etc..These auxiliary materials are applied in smoke host material by modes such as sprinkling, coating, immersion absorption.
In some embodiments, smoke matrix section is by tobacco cartridge smoke machine roll-forming, or by fiber forming machine boundling at
Type, or be made by a variety of manufacturing process such as blank pipe landfills.
In some embodiments, smoke matrix section, which refers to, circumferentially surrounds the both ends that cigarette paper is constituted by smoke host material
The open cylindrical fuming liquids in face.
In some embodiments, smoking article is cylindrical, and circumference circle range can be 17mm~25mm, preferably
Ground, circumference circle range can be 20mm~23mm.
In some embodiments, the section girth of smoke matrix section is slightly less than the total cross-section perimeter of smoking article
(such as 0.5mm~1.5mm smaller than smoking article total cross-section perimeter).
In some embodiments, the length range of smoke matrix section can be 5mm~65mm, it is preferable that its length range
It can be 15mm~40mm.
In some embodiments, the section girth of mouth stick be slightly less than smoking article total cross-section perimeter (such as
It is 0.5mm~1.5mm smaller than the total cross-section perimeter of smoking article).
In some embodiments, the length range of mouth stick can be 20mm~40mm, it is preferable that the length range of mouth stick can
For 25mm~35mm.
In some embodiments, the shape of mouth stick is cylinder.
In some embodiments, mouth stick includes at least one ventilation section, and ventilation section has the through-hole of central axial position,
The internal diameter of tubular cavity has the variation tendency for periodically becoming larger or reducing along the radial direction of ventilation section.
In some embodiments, in a ventilation section, at least there is the internal diameter of tubular cavity 1 to become larger or reduce
In the period, in a preferred scheme, the internal diameter of tubular cavity at least has 2 periods for becoming larger or reducing.
In some embodiments, maximum cross section Zhou Changwei 10mm~16mm of tubular cavity, it is preferable that tubular cavity
Maximum cross section Zhou Changwei 14mm~16mm.
In some embodiments, minimum cross-section Zhou Changwei 5mm~12mm of tubular cavity, it is preferable that cross section
Minimum cross-section Zhou Changwei 5mm~7mm.
In some embodiments, mouth stick also includes the fillter section (such as acetate fiber fillter section) at nearly suction nozzle with battery unit end, filtering
Section is whole cylindrical, optional material surround that Celluloseacetate cigarette filter tow is formed along section girth direction by outer wall two
The open form in end face.
In some embodiments, smoke matrix section is aligned tandem compound with mouth stick end, in one embodiment, optional
Combination be that two sections of end face fits closely combination;In another embodiment, the end that optional combination is two sections
It is spaced a fixed gap between face to be combined, the length range of preferred interstitial spaces is 0.5mm~1.0mm.
In some embodiments, smoke matrix section and the length ratio range of mouth stick are 1:5~1:0.5, suitable in one kind
In electric heating smoke utensil for center heating, preferred proportional region is 1:4~1:3;It is suitable for week outward in one kind
It encloses in the electric heating smoke utensil of heating, preferred proportional region is 1:0.8~1:1.2.
The smoking article of the disclosure, can satisfy smog delivery efficiency height, and entrance aerosol proper temperature, manufacture is processed into
This cheap purpose of design.Not yet explicitly the step of operating condition can carry out at room temperature, at a normal.
Term include/contain/includes, and refers to that weight content is 0.1~100%, such as 10~20%, 20~30%, 30
~40%, 40~50%, 50~60%, 60~70%, 70~80%, 80~90%, 90~100%.
Term " cross section " refers to the section perpendicular to mouth stick long axis ray
Term " longitudinal section " refers to the section by mouth stick long axis ray.
Term " mouth stick " refers to cigarette mouth stick, in particular to rod-shaped products, and the channel of air-flow can be passed through by having.Mouth stick can
For smoking article.
Term " room temperature " refers to 25 ± 5 DEG C.
Term normal pressure refers to 1 atmospheric pressure ± 5%.
Term " average pipe cross-sectional area " refers to the average value of largest tube cross-sectional area Yu minimum tube cross-sectional area.
If not otherwise specified, % is quality %, and content is mass content, and ratio is mass ratio.
Term " about " should be readily appreciated by one skilled in the art, and will be had to a certain degree with the context of place used in it
Variation.If to those skilled in the art, it is clear for using not according to the context of term application, then
" about " mean no more than the certain number value or range positive and negative 10%.
Beneficial effect
One or more schemes of the disclosure one or more of have the advantages that:
1) aerosol delivery efficiency with higher;
2) there is lower outlet temperature.
Embodiment of the present invention is described in detail below in conjunction with drawings and examples, still, art technology
Personnel will be understood that, following drawings and embodiment are merely to illustrate the present invention, rather than the restriction to the scope of the present invention.According to attached
The following detailed description of figure and preferred embodiment, various purposes of the invention and advantageous aspect carry out those skilled in the art
Saying will be apparent.
Embodiment 3
Fig. 3 shows a smoking article.The smoking article uses outer dimension structure same as Example 1, is cylinder
Body is rodlike.The smoking article includes that the smoke matrix section 1 being connected in series and 2 smoke matrix section 1 of mouth stick and mouth stick 2 are wrapped up by one
Layer 3 circumferentially wraps up.The section girth of the smoking article be 23mm, the length range 15mm of smoke matrix section 1, mouth stick 2
Length range 30mm.
Mouth stick 2 includes the ventilation section 21 being connected in series and fillter section 23, and ventilation section 21 is located at smoke matrix section 1 and fillter section
Between 23.The length for section 21 of ventilating is 25mm, and the length of fillter section 23 is 5mm.Specifically, fillter section 23 is that one section of two acetic acid is fine
Tie up tow.
Tubular cavity 25 is equipped in section 21 of ventilating, as shown in figure 3, the inner wall of tubular cavity 25 is passing through 2 long axis axis of mouth stick
Profile is triangular waveform on the section of line.
Tubular cavity 25 including the first reducing pipe 211 (length 3.125mm), the first wealthy diameter pipe that are sequentially connected in series
221 (length 6.25mm), the second reducing pipe 212 (length 6.25mm), the second wealthy diameter pipe 222 (length 6.25mm) and third undergauge
Pipe 213 (length 3.125mm).
For the first reducing pipe 211, the second reducing pipe 212 and third reducing pipe 213, their pipe cross-sectional area exists
[2.5,11.5)mm2In range.
Diameter pipe 221 wealthy for first and the second wealthy diameter pipe 222, their pipe cross-sectional area is in [11.5,19.6] mm2Model
In enclosing.
In tubular cavity 25, maximum pipe diameter is that (cross section is circle to 5.0mm, is equivalent to cross-sectional area
19.6mm2, also correspond to section girth 15.7mm), minimum tube diameter is that (cross section is circle to 1.8mm, is equivalent to cross section
Area 2.5mm2, also correspond to section girth 5.6mm), the face of maximum cross section and minimum cross-section in tubular cavity 25
The ratio between product is 25:3.24.
Comparative example 1
Fig. 4 shows the smoking article of comparative example 1.The smoking article uses outer dimension structure same as Example 1, is
Cylindrical bar shape.The smoking article includes the smoke matrix section 1 being connected in series and mouth stick 2, and smoke matrix section 1 and mouth stick 2 are by one
Wrapping layer 3 circumferentially wraps up.The section girth of the smoking article is 23mm, the length range 15mm of smoke matrix section 1, mouth stick
2 length range 30mm.
Comparative example 1 the difference from embodiment 1 is that: the structure of mouth stick 2 be Diacetate cellulose tow mouth stick.The length of the mouth stick
Degree is 30mm, section girth 23mm.
Comparative example 2
Fig. 5 shows the smoking article of comparative example 2.This smoking article uses outer dimension structure same as Example 1,
For cylindrical bar shape.The smoking article includes the smoke matrix section 1 being connected in series and mouth stick 2, and smoke matrix section 1 and mouth stick 2 are by one
A wrapping layer 3 circumferentially wraps up.The section girth of the smoking article is 23mm, and the length of smoke matrix section 1 is 15mm.
Comparative example 2 the difference from embodiment 1 is that: the structure of mouth stick 2 be papery pipe.The length of the papery pipe is 30mm,
(cross section is circle to pipe internal cavity diameter 5.7mm, is equivalent to cross-sectional area 25.8mm2, also corresponding to section girth is
18mm)。
Comparative example 3
The smoking article of comparative example 3.This smoking article uses outer dimension structure same as Example 1, is cylinder
It is rodlike.The smoking article includes that the smoke matrix section 1 being connected in series and mouth stick 2, smoke matrix section 1 and mouth stick 2 are wrapped up by one
Layer 3 circumferentially wraps up.The section girth of the smoking article is 23mm, and the length of smoke matrix section 1 is 15mm, the length of mouth stick 2
Degree is 30mm.Mouth stick 2 includes the ventilation section 21 being connected in series and fillter section 23.
Comparative example 3 the difference from embodiment 1 is that: in mouth stick 2 ventilate section 21 structure be papery pipe.The length of the papery pipe
Degree is 25mm, and pipe internal cavity diameter 5.0mm (is equivalent to cross-sectional area 19.6mm2, also corresponding to section girth is
15.7mm).The length of fillter section 23 is 5mm.Specifically, fillter section 23 is one section of Diacetate cellulose tow.
Comparative example 4
The smoking article of comparative example 4.This smoking article uses outer dimension structure same as Example 1, is cylinder
It is rodlike.The smoking article includes that the smoke matrix section 1 being connected in series and mouth stick 2, smoke matrix section 1 and mouth stick 2 are wrapped up by one
Layer 3 circumferentially wraps up.The section girth of the smoking article is 23mm, and the length of smoke matrix section 1 is 15mm, the length of mouth stick 2
Degree is 30mm.Mouth stick 2 includes the ventilation section 21 being connected in series and fillter section 23.
Comparative example 4 the difference from embodiment 1 is that: in mouth stick 2 ventilate section 21 structure be papery pipe.The length of the papery pipe
Degree is 25mm, and (cross section is circle to pipe internal cavity diameter 1.8mm, is equivalent to cross-sectional area 2.5mm2, also correspond to cross section
Perimeter 5.6mm).The length of fillter section 23 is 5mm.Specifically, fillter section 23 is one section of Diacetate cellulose tow.
Analysis detection:
By above-described embodiment and the smoking article of comparative example as being heated in heater.It heats utensil and uses electric heating center
Heating utensil carries out heating tool and detects smoking property.Specific detection method is: smoking article is preheated to constant smoke temperature
After 337 DEG C, 12 mouthfuls, every mouthful of pumping volume 55mL, every mouthful of puff interval 30s are aspirated, flue gas after being aspirated using cambridge filter trapping,
Total granules in trapped flue gas is measured using electronic balance;It is filtered using isopropyl alcohol extraction filter disc, and is examined with gas chromatograph
Moisture, nicotine content in flue gas are surveyed, while using the highest of thermistor detection cigarette holder outlet end aerosol in aspiration procedure
Temperature.
Testing result is as follows:
From test result it can be found that:
The rejection of the aerosol of the smoking article of comparative example 1,4 it is higher (total granules, moisture, nicotine content compared with
It is low), it cannot achieve effective aerosol delivery purpose.
Although the delivery rate of the aerosol of the smoking article of comparative example 2,3 is higher, the aerosol of cigarette holder outlet end is most
High-temperature is more than 60 DEG C, is unable to satisfy suitable human oral cavity pumping requirements.