CN111567863A

CN111567863A - Airtight heating type cigarette with smoke channel

Info

Publication number: CN111567863A
Application number: CN202010422761.1A
Authority: CN
Inventors: 李斌; 王汝�; 王爽; 吕茜; 张柯; 雷萍; 邓楠; 廖思尧; 鲁端峰; 郑绪东; 付丽丽; 汤建国
Original assignee: China Tobacco Yunnan Industrial Co Ltd; Zhengzhou Tobacco Research Institute of CNTC
Current assignee: China Tobacco Yunnan Industrial Co Ltd; Zhengzhou Tobacco Research Institute of CNTC
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-08-25

Abstract

The invention belongs to the field of heating non-combustible cigarettes, and particularly relates to a closed heating type cigarette with a smoke channel. The cigarette comprises a plug (5), a tobacco section (1), a low-suction-resistance section (2) and a functional filter section (3) which are coaxially abutted in sequence from upstream to downstream, and an external wrapping piece (4) wraps the cigarette; the low-suction-resistance section (2) is a pipe body with an axial central cavity (2-1) and circumferential side wall through holes (2-2), the number of the side wall through holes (2-2) is at least one, and an axial first smoke channel (1-1) is arranged at the axis of the tobacco section (1). The cigarette is designed with a plurality of axial channels in the tobacco section for the first time, which is beneficial to the diffusion of the smoke in the tobacco section.

Description

Airtight heating type cigarette with smoke channel

Technical Field

The invention belongs to the field of heating non-combustible cigarettes, and particularly relates to a closed heating type cigarette with a smoke channel.

Background

Traditional tobacco has been in the past for centuries and has been incorporated into the lives of most smokers. In recent years, along with the improvement of living standard of people, the problems of smoking, health, harm of second-hand smoke and the like are more and more emphasized by people, and the harmfulness brought by the traditional tobacco products is more and more prominent. Meanwhile, with the implementation of WHO tobacco control framework convention, especially the gradual expansion of smoking ban in public places of all countries in the world, the development environment of tobacco products has been changed significantly and profoundly, and the structure of tobacco products is being adjusted rapidly towards the development direction of diversification and no smoke. The new tobacco products gradually become the realistic choice for various large transnational tobacco enterprises to deal with the sales of the traditional tobacco products.

At present, most of the non-combustible heating cigarettes adopt air as a carrier of smoke, in order to ensure that the tobacco is not combusted, the applied heating temperature is usually lower and generally does not exceed 300 ℃, compared with the traditional cigarette, the tobacco aroma components of the novel non-combustible heating cigarette are difficult to completely release, and the smoke quantity is insufficient, so that the cigarette is difficult to be accepted by traditional smokers. In addition, in order to ensure air circulation, most of the tobacco ends of the cigarettes which are not heated and combusted are in an open structure, namely, the cut tobacco or the reconstituted tobacco sheets are directly exposed outside or are connected with the outside atmosphere through a certain airflow channel, and tobacco residues can drop off and easily pollute the smoking set in the process of pulling out the smoke bomb after smoking is finished, so that the smoking set is cleaned by the tobacco in a certain time. The problem can be effectively solved by adopting a closed heating type cigarette structure, but the smoke generated by the tobacco section in the closed cigarette structure is difficult to diffuse.

The present invention has been made to solve the above problems.

Disclosure of Invention

The invention provides a closed heating type cigarette with a smoke channel, which comprises a plug 5, a tobacco section 1, a low-suction-resistance section 2 and a functional filter section 3 which are coaxially abutted in sequence from upstream to downstream, wherein an external wrapping piece 4 wraps the outside of the cigarette;

the low-suction-resistance section 2 is a pipe body with an axial central cavity 2-1 and circumferential side wall through holes 2-2, and the number of the side wall through holes 2-2 is at least one;

the axial center of the tobacco section 1 is provided with an axial first smoke channel 1-1.

Preferably, the tobacco section 1 further comprises a plurality of axial second smoke channels 1-2 at positions other than the axial center.

The flue gas channel axially penetrates the tobacco section 1. I.e. the tobacco section 1 is of a honeycomb briquette type structure.

The plug 5 and the outer wrapping 4 are both made of an air-impermeable or air-permeability-controllable material, such as aluminum foil.

Preferably, the plug 5 is cylindrical in shape, has good thermal stability, and is not significantly deformed by the temperature rise.

Preferably, the plug 5 does not deform significantly at temperatures below 400 ℃.

Preferably, a coaxial through hole 4-1 is arranged on the outer wrapping piece 4 at a position corresponding to the side wall through hole 2-2, and the aperture of the coaxial through hole 4-1 is not smaller than that of the side wall through hole 3-2.

Preferably, the low suction resistance section 2 may be an empty pipe.

Preferably, the functional filter segment 3 comprises a cooling segment 3-1 and a filter segment 3-2.

Preferably, the tobacco segment 1 comprises tobacco cut, tobacco flakes, tobacco particles, tobacco shaped bodies or tobacco containing gel bodies therein.

The technical scheme can be freely combined on the premise of no contradiction.

The invention has the following beneficial effects:

1. the invention designs a closed cigarette with a smoke channel for the first time, which is matched with a heating type smoking set for use, and because the formed fresh smoke has a replacement effect on the internal atmosphere of the cigarette, the oxygen content in the cigarette can be reduced along with the heating process, and at the moment, even if the heating temperature is increased, the combustion phenomenon can not occur. Therefore, the heating temperature can be increased to fully release the tobacco aroma components and increase the smoke volume.

2. One end of the sealed cigarette tobacco section contacting with the cigarette accommodating cavity is sealed by the plug, so that the condition that tobacco residues fall to pollute the smoking set is avoided.

3. The closed cigarette is provided with a low-suction-resistance section with an axial central cavity and a circumferential side wall through hole, and in the suction process, outside air enters from the side wall through hole and is mixed with smoke generated by heating of the tobacco section in the cavity to form mainstream smoke for people to suck. Meanwhile, in the process of suction, the external air enters from the through hole of the side wall, the air flow rate of the low suction resistance section is high, the pressure is low, and the smoke of the tobacco section is extracted. In addition, the outside air has a cooling effect on the smoke at the same time.

4. The cigarette utilizes the plug to seal the tobacco section, and in the cigarette production process, the plug can be jointly rolled and connected with the tobacco section, thereby facilitating the industrial production. If the tobacco section is sealed by using elements such as a sealing film and the like, the cigarette production process needs to be changed, the existing equipment is greatly changed, and the industrial production is inconvenient.

5. The cigarette is designed with a plurality of axial channels in the tobacco section for the first time, which is beneficial to the diffusion of the smoke in the closed tobacco section.

Drawings

FIG. 1 is a schematic view of a sealed heated cigarette with a smoke channel according to embodiment 1 of the present invention.

List of reference numerals:

1. the filter comprises a tobacco section 1-1, a first smoke channel 1-2, a second smoke channel 2, a low-suction-resistance section 2-1, a central cavity 2-2, a side wall through hole 3, a functional filter section 4, an external wrapping piece 4-1 coaxial through hole 5 and a plug.

Detailed Description

The present invention will be further described with reference to the following embodiments.

Example 1

A sealed heating type cigarette with a smoke channel comprises a plug 5, a tobacco section 1, a low-suction-resistance section 2 and a functional filter section 3 which are coaxially abutted in sequence from upstream to downstream, wherein the exterior of the cigarette is wrapped with an exterior wrapping piece 4 tipping paper;

the low-suction-resistance section 2 is a hollow paper tube with an axial central cavity 2-1 and circumferential side wall through holes 2-2, and the number of the side wall through holes 2-2 is 2;

the axial center of the tobacco section 1 is provided with an axial first smoke channel 1-1. The non-axial center of the tobacco section 1 also comprises 6 axial second smoke channels 1-2. The flue gas channel axially penetrates the tobacco section 1. I.e. the tobacco section 1 is of a honeycomb briquette construction.

Coaxial through holes 4-1 are formed in the outer wrapping piece 4 at positions corresponding to the side wall through holes 2-2, and the aperture of each coaxial through hole 4-1 is not smaller than that of the side wall through hole 3-2.

The functional filter section 3 comprises a cooling section 3-1 and a filter section 3-2.

The tobacco segment 1 includes a tobacco shaped body therein.

The plug 5 is cylindrical, is made of aluminum foil, has the thickness of about 3mm, has good thermal stability, and cannot be deformed obviously due to temperature rise.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A closed heating type cigarette with a smoke channel is characterized by comprising a plug (5), a tobacco section (1), a low-suction-resistance section (2) and a functional filter section (3) which are coaxially abutted in sequence from upstream to downstream, wherein an external wrapping piece (4) wraps the outside of the cigarette;

the low-suction-resistance section (2) is a pipe body with an axial central cavity (2-1) and circumferential side wall through holes (2-2), and the number of the side wall through holes (2-2) is at least one;

the axial center of the tobacco section (1) is provided with an axial first smoke channel (1-1).

2. A cigarette according to claim 1, characterized in that coaxial through holes (4-1) are arranged on the outer wrapping piece (4) at positions corresponding to the side wall through holes (2-2), and the diameter of the coaxial through holes (4-1) is not smaller than that of the side wall through holes (3-2).

3. A rod according to claim 1, characterised in that the low resistance to draw section (2) may be an empty tube.

4. Cigarette according to claim 1, characterised in that the functional filter segments (3) comprise a cooling segment (3-1) and a filter segment (3-2).

5. A tobacco rod according to claim 1, characterized in that the tobacco segment (1) comprises cut tobacco, tobacco flakes, tobacco particles, tobacco shaped bodies or tobacco containing gels therein.

6. A rod according to claim 1, characterised in that the plug (5) and the outer wrapper (4) are both of a gas impermeable or gas permeable material.

7. A rod according to claim 1, characterised in that the plug (5) has a certain thermal stability and does not deform significantly below a temperature of 400 ℃.

8. A tobacco rod according to claim 1, characterised in that the tobacco section (1) also comprises a plurality of axial second smoke channels (1-2) at positions other than the axial center.