CN111642792A - Support unit with fold protrusions and cigarette comprising same - Google Patents

Abstract

The invention discloses a supporting unit containing corrugated protrusions, which comprises a pipe wall (21) and a lumen (22); the pipe wall (21) is provided with a plurality of corrugated protrusions (21) extending into the lumen (22). 211); a plurality of the corrugated protrusions (211) extend along the axial direction, the circumferential direction or the helical direction on the pipe wall (22). The support unit (2) of the present invention produces a disturbance flow phenomenon on the flue gas and air flowing directly through the support unit, thereby increasing the residence time of the flue gas and air in the support unit, mixing the flue gas and air separately, and realizing the cooling of the flue gas. The supporting unit (2) of the present invention only needs to fold parallel wrinkle protrusions (211) on the reconstituted tobacco blade material in advance before production, and the structure can be realized when processing the paper tube, and the production efficiency is high and the cost is low. The tube wall (21) of the supporting unit (2) of the present invention is a reconstituted tobacco leaf, which will not collapse during the phase change and endothermic process, and can be used as a fragrance-carrying body to enrich the tobacco fragrance.

Description

A support unit containing folds and protrusions and a cigarette containing the same

technical field

The patent of the present invention relates to the technical field of heat-not-burn cigarette production, and specifically relates to a support unit containing pleated protrusions and a cigarette containing the same.

Background technique

As consumers pay more attention to health issues and increase their demand for personalized experience of cigarette products, the tobacco industry has continuously responded to the upgrading of consumers' needs and developed various cigarettes with reduced coke and harm reduction. Among them, heat-not-burn cigarettes can provide a healthier smoking experience while satisfying consumers' sensory requirements for cigarette products because of their different heating methods from traditional cigarette products.

Existing HNB cigarettes mainly include a smoking core unit, a hollow support element, a cooling unit, and a filter tip unit, wherein the hollow support element not only supports the cigarette, but also gathers smoke and assists The cooling unit cools the flue gas. In the prior art, ventilation holes are formed by piercing the tube wall of the hollow support element, so that the outside air enters the interior of the hollow support element and mixes with the flue gas, thereby increasing the amount of smoke and effectively reducing the temperature of the flue gas, but its cooling effect on the flue gas is not enough to make the air The mixing effect with flue gas is still not good because of the following two points: 1. The contact area between flue gas and the tube wall of the hollow support element is limited, and effective cooling cannot be achieved; 2. The airflow of flue gas and air in the hollow support element The path is a straight line, the residence time in the hollow support element is short, and the flue gas and air directly and quickly enter the cooling unit through the hollow support element, and cannot achieve sufficient mixing. Therefore, in order to further reduce the temperature of the flue gas, at present, it is mainly to improve the cooling material of the cooling unit or directly increase the amount of the cooling material, but the cooling material is mostly a phase change material. After a few puffs, the phase change material shrinks. Collapse and block the airflow channel, the suction resistance is greatly increased, which affects the suction experience.

Therefore, it is desirable to develop a hollow support element with strong supporting force that can take into account the cooling effect to assist the cooling unit to achieve a better cooling effect on the flue gas, or even replace the cooling unit.

The present invention has been made in order to solve the above-mentioned problems.

SUMMARY OF THE INVENTION

A first aspect of the present invention provides a support unit with corrugated protrusions, which includes a tube wall 21 and a tube lumen 22;

The tube wall 21 has a plurality of corrugated protrusions 211 extending into the lumen 22;

A plurality of the corrugated protrusions 211 extend on the pipe wall 22 in the axial direction, the circumferential direction or the helical direction.

Preferably, a plurality of the corrugated protrusions 211 are parallel to each other, and the vertical distance between two adjacent corrugated protrusions 211 is 0-6 mm, that is, A in FIG. 3 and FIG. 4 .

Preferably, the shape of the corrugated protrusion 211 is a "V" shape or an arc shape.

Preferably, the tube wall 21 of the support unit 2 is reconstituted tobacco leaf material, and further in order to compensate for the aroma, aroma can be carried in the reconstituted tobacco leaf material.

Preferably, the surface of the reconstituted tobacco blade is coated with a polylactic acid coating, and the polylactic acid coating faces the lumen 22. When the reconstituted tobacco blade is already loaded with aroma, in order to ensure that the flavor in the reconstituted tobacco blade can be replaced Good release, can not be coated with polylactic acid coating.

Preferably, the reconstituted tobacco leaf material has a gram weight of 80-200 g/m ² and a thickness of 0.18-0.30 mm.

Preferably, the preparation method of the support unit 2 is as follows: 1. First, the parallel folded and folded protrusions 211 on the reconstituted tobacco blade are made of the supporting unit material; 2. The reconstituted tobacco blade is folded and rolled into a tube, The corrugated protrusion 211 is located on the inner wall of the lumen. The included angle α between the corrugated protrusion 211 and a certain side of the material sheet of the pipe wall 21 is between 0 and 90 degrees.

A second aspect of the present invention provides a cigarette comprising the support unit, which includes:

The wick unit 1, the support unit 2, the ventilation unit 3 and the filter unit 4;

The support unit 2 , the ventilation unit 3 and the filter unit 4 are wrapped by forming paper 5 to form a filter rod, and the cigarette core unit 1 and the filter rod are mounted by tipping paper 6 .

The ventilation unit 3 is an empty tube structure, and the outer wall has ventilation holes 31 penetrating the inside and outside of the outer wall.

The 5-gram weight of the forming paper is 40-80 g/m ² .

Wherein, the material of the outer wall of the ventilation unit 3 is acetate fiber, paper or non-woven fabric and any other material commonly used in existing heat-not-burn cigarettes with cooling, supporting and ventilation effects. The outer wall of the ventilation unit 3 has high air permeability, and the addition of the ventilation unit 3 further improves the ventilation rate of the cigarette filter rod.

Preferably, the filter unit 4 is made of acetate fiber, polylactic acid fiber, or a material blended with acetate fiber and polylactic acid fiber, and any filter unit material commonly used in existing heat-not-burn cigarettes.

Compared with the prior art, the present invention has the following effects:

1. The tube wall 21 of the support unit of the present invention has a plurality of corrugated protrusions 211, and the plurality of corrugated protrusions 211 extend on the pipe wall 22 in the axial, circumferential or helical direction. This form of arrangement and distribution can change the airflow path of the flue gas and air in the support unit, and create a turbulence phenomenon for the flue gas and air flowing directly through the support unit, thereby increasing the residence time of the flue gas and air in the support unit, and making the flue gas and air flow. The air is mixed to prevent the flue gas and air from passing through the support unit directly and quickly, so as to realize the cooling of the flue gas.

2. The tube wall 21 of the support unit 2 of the present invention is a reconstituted tobacco leaf material, which can be used as a body for carrying aroma to enrich the aroma of tobacco. In addition, during the rolling process of the reconstituted tobacco leaf material, corrugated protrusions 211 are formed inside the lumen 22. The contact of the corrugated protrusions 211 with the smoke can reduce the temperature of the smoke, and the corrugated protrusions 211 can increase the contact between the smoke and the supporting unit. The contact area is more conducive to reducing the temperature of the flue gas. Meanwhile, in a preferred embodiment of the present invention, the surface of the reconstituted tobacco blade is coated with polylactic acid to further reduce the temperature of the flue gas.

3. The support unit of the present invention is rolled by the reconstituted tobacco blade material, which will not collapse during the phase change and heat absorption process, so as to avoid the collapse of the phase change material and block the airflow channel after several puffs of puffs. The suction resistance is greatly increased, which affects the smoking experience. Further, the pipe wall 21 of the reconstituted tobacco leaf as the support unit 2 can be used as the incense-carrying body to enrich the incense of the tobacco.

4. The supporting unit 2 of the present invention only needs to fold the corrugated protrusions 211 in parallel on the reconstituted tobacco leaf material in advance, and the structure can be realized when processing the paper tube, and the production efficiency is high and the cost is low.

Description of drawings

1 is a schematic structural diagram of a heat-not-burn cigarette cigarette according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the unfolded structure of the support unit 2 according to the embodiment of the present invention;

FIG. 3 is an expanded cross-sectional view of the support unit 2 according to the embodiment of the present invention.

FIG. 4 is a cross-sectional view of the expanded support unit 2 in another embodiment of the present invention.

Designation of reference numerals in the description of the drawings: 1 - wick unit, 2 - support unit, 3 - ventilation unit, 4 - filter unit, 5 - forming paper, 6 - tipping paper, 21 - pipe wall, 22 - Lumen wall, 31 - vent hole, 211 - pleated protrusion.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

This embodiment is a cigarette including the support unit, which includes: a wick unit 1, the support unit 2, a ventilation unit 3 and a filter unit 4; the support unit 2, the ventilation unit 3 and the filter unit 4 are wrapped by forming paper 5 to form a filter rod, and the cigarette core unit 1 and the filter rod are tipped by tipping paper 6 .

The ventilation unit 3 is an empty tube structure, and the outer wall has ventilation holes 31 penetrating the inside and outside of the outer wall. The outer wall material of the ventilation unit 3 is paper. The filter unit 4 is made of acetate fiber.

The support unit includes a tube wall 21 and a tube lumen 22; the tube wall 21 has a plurality of corrugated protrusions 211 extending into the lumen 22; extend. A plurality of the corrugated protrusions 211 are parallel to each other, and the vertical distance between two adjacent corrugated protrusions 211 is 1.5 mm, that is, A=1.5 mm in FIG. 3 . The shape of the corrugated protrusion 211 is a "V" shape or an arc shape. The pipe wall 21 of the support unit 2 is reconstituted tobacco leaf material. And the surface of the reconstituted tobacco blade material is coated with a polylactic acid coating, and the polylactic acid coating faces the lumen 22 . The reconstituted tobacco leaf material has a gram weight of 100 g/m ² and a thickness of 0.25 mm.

The preparation method of the support unit 2 is as follows: 1. First, the parallel folded and folded protrusions 211 on the reconstituted tobacco blade are made of the supporting unit material; 211 is located on the inner wall of the lumen. The included angle α between the corrugated protrusion 211 and one side of the material sheet of the tube wall 21 is 60 degrees.

The comparative cigarettes were rolled according to the cigarette samples of this embodiment. The differences between the comparative cigarettes and the cigarette samples of this embodiment are: 1. The support unit is a paper tube; The two were respectively used for heating non-burning cigarettes for smoking, and it was found that the temperature of the smoke entering the mouth of the smoker was 39 ℃, and the smoker felt that the temperature of the smoke was slightly hot. However, the smoke temperature of the cigarette sample entering the mouth of the smoker in this embodiment is 35°C, and the smoker feels that the temperature is just suitable for smoking, and during the smoking process, the aroma of the cigarette is increased, and the taste is improved.

Claims (10)

1. A support unit with fold protrusions inside, characterized in that it comprises a tube wall (21) and a tube cavity (22);

the pipe wall (21) is provided with a plurality of fold bulges (211) extending into the pipe cavity (22);

the plurality of corrugation lobes (211) extend in an axial, circumferential, or helical direction on the tube wall (22).

2. The support unit according to claim 1, wherein a plurality of the corrugation lobes (211) are parallel to each other, and a vertical distance between two adjacent corrugation lobes (211) is 0-6 mm.

3. The support unit according to claim 1, characterized in that said creasing protrusions (211) have the shape of a "V" or arc.

4. The supporting unit according to claim 1, characterized in that the tubular wall (21) of the supporting unit (2) is a reconstituted tobacco sheet.

5. The support unit according to claim 4, wherein the reconstituted tobacco sheet is coated with a polylactic acid coating on the surface, and the polylactic acid coating faces the lumen (22).

6. The support unit of claim 4 or 5, wherein the reconstituted tobacco sheet has a grammage of 80-200g/m²The thickness is 0.18-0.30 mm.

7. A tobacco rod comprising a support unit according to any one of claims 1 to 6, characterized in that it comprises:

a tobacco core unit (1), the supporting unit, a ventilation unit (3) and a filtering unit (4);

the supporting unit, the ventilation unit (3) and the filtering unit (4) are wrapped by forming paper (5) to form a filter stick, and the cigarette core unit (1) and the filter stick are connected by tipping paper (6).

8. A rod as claimed in claim 7, characterised in that the formed paper (5) has a grammage of 40-80g/m²。

9. A rod according to claim 7, characterised in that the air-permeable unit (3) is of hollow tubular construction, the outer wall having ventilation holes (31) extending through the outer and inner walls of the outer wall.

10. A tobacco rod according to claim 7, characterized in that the material of the outer wall of the air-permeable unit (3) is acetate fiber, paper or non-woven fabric.

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