WO2020211294A1

WO2020211294A1 - Paper-based gel thread, preparation method therefor and cigarette containing same

Info

Publication number: WO2020211294A1
Application number: PCT/CN2019/107921
Authority: WO
Inventors: 雷萍; 杨文�; 汤建国; 龚为民; 冒德寿; 韩敬美; 王一帆; 成经辉; 郑绪东; 尚善斋; 王程娅; 吴俊�; 洪鎏; 李志强; 王汝�; 陈永宽; 窦元春; 刘凌璇; 苏杨; 马晓龙
Original assignee: 云南中烟工业有限责任公司
Priority date: 2019-04-19
Filing date: 2019-09-25
Publication date: 2020-10-22
Also published as: RU2767241C1; UA126763C2; ZA202104394B; CA3127888C; CA3127888A1

Abstract

Disclosed is a paper-based gel thread (5), which is a twisted paper-based strip. The paper-based gel thread (5) is formed by twisting a composite paper-based strip, the composite paper-based strip comprising a gel layer (5-2) carrying a functional material and a paper-based layer (5-1). Also disclosed are a preparation method for the paper-based gel thread (5) and a cigarette containing the paper-based gel thread (5). The paper-based gel thread (5) has the advantages of carrying a large amount of functional materials and having a good fragrance protectiveness, and meets the requirements of cigarettes for adding various flavor substances, smoking agents, etc.

Description

Paper-based gel thread, its preparation method and cigarette containing the paper-based gel thread

Technical field

The invention belongs to the technical field of cigarettes, and in particular relates to a paper-based gel thread, a preparation method thereof and a cigarette containing the paper-based gel thread.

Background technique

At present, there are ways to add flavors to heat-not-burn cigarettes in the field, including adding smoke-filled beads to filter sticks, or adding particulate flavor-carrying substances to filter sticks, or adding flavor-carrying substances to cigarette filter sticks. Cotton thread, etc., but these flavoring methods have their own shortcomings. Adding explosive beads to the filter rod not only has a higher production cost, but also puts forward higher requirements on the production and composite process of the filter rod; adding granular aroma-carrying substances to the filter rod will also challenge the production process; The addition of fragrance-carrying cotton thread to the filter rod often causes quality problems such as exposure of the cotton thread at the cutting position and bursting of the filter rod. At the same time, the fragrance-carrying method of the cotton thread contains a low amount of fragrance and releases quickly, which cannot continue to effectively provide what you need. fragrance.

In the present invention, by implanting a low-cost, easy-to-produce, large-loading, good-release and long-lasting gel incense line into the heat-not-burn cigarette, it satisfies the need for the cigarette to add various flavor substances, smokers, etc. Demand. At the same time, through the use of conventional high-permeability forming paper and simple manufacturing process, a gel incense line with large loading capacity, good release effect and continuous incense can be produced, which meets the need for cigarettes to add various flavor substances and smoke. The demand for agents, etc.

Summary of the invention

In view of the above problems, the object of the present invention is to provide a paper-based gel thread, a preparation method thereof and a cigarette containing the paper-based gel thread.

The purpose of the present invention is achieved through the following technical solutions:

The first aspect of the present invention provides a paper-based gel thread. The paper-based gel thread is formed by twisting and twisting a composite paper-based strip, the composite paper-based strip comprising a gel layer carrying a functional material and a paper-based layer .

Preferably, the diameter of the end face of the paper-based gel thread is 1-3 mm, and the twist is 4-15 twists/m. The twist represents the number of times a 1m long incense thread rotates around its axis.

Preferably, the air permeability of the paper base layer is 5000 CU-15000 CU, the grammage is 25-40 g/m ² , and the width is 20-60 mm.

Preferably, the functional material-carrying gel layer includes functional material and gel.

Preferably, the gel is polyethylene glycol.

Preferably, the functional material includes at least one of flavors and smokers. Among them, when the functional material is perfume, the gel carrying the functional material can also be called the fragrance-carrying gel.

The preparation method of the paper-based gel thread according to the first aspect of the second aspect of the present invention, the preparation method includes the following steps:

(1) Heating the gel material to form a gelatinous material, adding the functional material and mixing to obtain a gel carrying the functional material;

(2) Embossing the paper base layer to obtain the embossed paper base layer;

(3) Coat the functional material-carrying gel of step (1) on the embossed paper base layer of step (2); then cool, gather, and twist to obtain the paper-based gel thread .

Preferably, the added amount of the functional material is 5%-60% of the weight of the gel substance.

Preferably, in the embossing operation in step (2), the distance between the two patterns is 1-5 mm.

Preferably, in step (3), the number of stages of the gathering is 2-5, and the gathering diameter of each stage is gradually reduced, and the inner diameter of the last stage gathering device is 0.2 larger than the diameter of the paper-based gel line -1mm.

Preferably, in step (3), the folding is a three-stage folding, and the folding diameter of each stage is gradually reduced, and the inner diameter of the final stage folding device is 0.2-1 mm larger than the diameter of the paper-based gel line.

Preferably, the air permeability of the paper base layer is 5000 CU-15000 CU, the weight is 25-40 g/m ² , and the width is 20-60 mm.

Preferably, the gel material is polyethylene glycol.

Preferably, the functional material includes at least one of flavors and smokers. Among them, when the functional material is a fragrance, the gel containing the functional material obtained in step (1) can also be called a fragrance-carrying gel, and the gel layer containing the functional material can also be called a fragrance-carrying gel layer.

The third aspect of the present invention provides a cigarette comprising the paper-based gel thread of the first aspect of the present invention.

Preferably, the non-hollow section or sections of the cigarette are implanted with the paper-based gel thread according to the first aspect of the present invention.

Preferably, the number of the paper-based gel lines implanted in each section of the cigarette is 1-3, and each of the paper-based gel lines can be arranged at any position in the cigarette.

Preferably, the paper-based gel lines contained in the same cigarette are the same or different.

The paper-based gel thread of the present invention has the following beneficial effects:

(1) A large amount of incense. According to the design requirements of heat-not-burn cigarette products, it is necessary to add a substance that can continuously release a large amount of aroma-carrying substances in the filter rod. However, the existing fragrances added to the cotton thread have limited aroma-carrying capacity and cannot meet the design requirements of cigarettes. There are a lot of gaps between the fibers of high-permeability forming paper. When the high-permeability forming paper is used to make a gel thread with the same diameter as a cotton thread, it carries more perfume substances, and the fragrance content reaches 3 times that of the same diameter cotton thread. Above, it can better meet the design requirements of heating non-burning cigarettes.

(2) Good fragrance retention. When the existing technology uses cotton thread to load perfume, the formed cotton thread (the structure of a single cotton thread is multiple intertwined yarns, that is, multi-stranded cotton thread) is immersed in the perfume, because the multiple yarns are tight to each other. Twisting, so the perfume can only gradually penetrate from the outer surface of the cotton thread to the center of the cotton thread, making the surface of the cotton thread more perfume, and gradually less toward the center, resulting in the cotton thread not reaching its maximum load, and the perfume substance carried by the cotton thread is easier Volatile, more perfume substances volatile over time. In contrast, when using high-permeability molding paper, the paper is in contact with the fragrance when it is in the unfolded state, so that the fragrance is evenly loaded within the thickness of the paper and then twisted into a paper-based gel line, so that the surface and the center The perfume content is the same. The perfume in the center is not easy to volatilize at room temperature, and the perfume can be effectively released through the fiber holes during the heating process.

(3) Low cost and easy to implement. The use of the cigarette paper for a simple twisting process can produce the required paper-based gel thread, so it is low in cost and easy to implement compared to the use of popping beads and other flavoring methods.

The use of polyethylene glycol as a perfume carrier in the present invention has the following beneficial effects:

(1) Good stability: Polyethylene glycol has good stability, is colorless, odorless, non-toxic and non-irritating. It is not easy to react with other substances under normal conditions. It will only happen when its temperature rises to 300°C. Thermal cracking, and adding a paper-based gel line to the heat-not-burn cigarette, the flue gas temperature is much lower than 300 ℃.

(2) Good compatibility: Polyethylene glycol has good compatibility with many organic substances and can dissolve water-based and oily tobacco flavors well, so it can be used as a carrier of tobacco flavors. But the gums are almost incompatible with organic solvents, so they cannot be used as gel carriers for perfumes.

(3) Good aroma retention and release effect: Polyethylene glycol has a high molecular weight and is waxy solid at room temperature. Therefore, the tobacco flavor is not easy to volatilize when dissolved at room temperature, and the smoke will condense during the smoking process. The glue is heated, the polyethylene glycol melts and releases the flavors and fragrances dissolved therein.

(4) It has good moisturizing properties: polyethylene glycol has excellent moisturizing and moisturizing properties, which can improve the sensory quality of cigarettes.

The preparation method of the present invention has the following beneficial effects:

(1) The present invention performs embossing pretreatment on the paper base. On the one hand, it helps the gel coating of the functional material to be more uniform, large and firm, and on the other hand, it helps the paper base to gather and twist and avoid The paper base is broken.

(2) The shrinking operation of the present invention adopts multi-stage shrinking with the shrinking diameter gradually reduced, so that the gel carrying the functional material is cooled on the paper base while the paper base is folded, which helps to fix the gel of the functional material on the paper base. Stronger, not easy to be squeezed out or fall off.

The cigarette containing the paper-based gel thread of the present invention has the following beneficial effects:

(1) The type, number, and position of the paper-based gel line implanted in the cigarette can be adjusted freely to enrich the flavor of the cigarette and meet the needs of smokers for different cigarette flavors.

(2) Since the gel needs to melt and absorb heat during the suction process, the addition of the gel thread has a cooling effect on the flue gas.

Description of the drawings

Figure 1 is a schematic cross-sectional view of the paper-based gel line in Example 1.

2 is a schematic diagram of a cigarette containing paper-based gel strings in Example 4. FIG.

Figure 3 is a schematic diagram of the cigarette paper after embossing of the present invention.

Figure 4 is a flow chart of the paper-based gel line molding process of the present invention.

Fig. 5 is a schematic diagram of the forming process of the paper-based gel line of the present invention.

List of reference signs in each figure:

1. Tobacco section; 2. Hollow section of filter rod; 3. Solid section A of filter rod; 4. Solid section B of filter rod; 5. Paper-based gel line; 5-1 Paper-based layer; 5-2 Aroma-carrying gel layer , 6. Paper base after embossing; 7. Water bath; 8. Coating roller; 9. One-stage gathering device; 10. Two-stage gathering device; 11 Three-stage gathering device; 12. Rotary twisting device; 13. Winding device; 14, forming paper-based gel line; 15 peaks; 16 valleys.

detailed description

The content of the invention will be further elaborated below through specific implementations.

Example 1

A paper-based gel line with the following structure:

The paper-based gel thread is formed by twisting and twisting a composite paper-based strip. The composite paper-based strip includes a fragrance-carrying gel layer and a paper-based layer; the end face diameter of the paper-based gel thread is 2.8mm and the twist is 10%. Twist/m, length is 100m; the paper base layer is a cigarette forming paper with an air permeability of 6000CU, a weight of 30g/m ² and a width of 60mm; the aroma-carrying gel layer includes mint flavor and polyethylene glycol .

The above-mentioned paper-based gel line is cut horizontally and vertically at random positions multiple times, and the cross-sectional structure is shown in FIG. 1.

Comparative example 1

Choose a cotton thread with a diameter of 2.8mm, a length of 100m, and a single denier of 720. The cotton thread is immersed in the same fragrance-carrying gel used in the paper-based gel thread described in Example 1, and then cooled and rolled , The prepared fragrant cotton thread.

Example 2

Fragrance test:

The paper-based gel thread described in Example 1 and the fragrance-loaded cotton thread described in Comparative Example 1 were separately weighed and calculated for the gel and fragrance-carrying amount. The specific conditions are shown in Table 1.

Table 1 Tests of the amount of gel and fragrance of paper-based gel thread and cotton thread

compare results:

From Table 1, it can be seen that the fragrance-carrying amount per meter of the paper-based gel thread is significantly greater than that of the fragrance-carrying cotton thread, that is, the fragrance-carrying amount of the paper-based gel thread is greater than that of the fragrance-carrying cotton thread.

Example 3

Fragrance retention test:

Using the paper-based gel thread described in Example 1 and the fragrance-carrying cotton thread described in Comparative Example 1 to produce two cigarettes with the same structure, the only difference is that the paper-based gel thread is replaced with the fragrance-carrying cotton thread. Place the two cigarettes in an open environment with the same temperature and humidity, and evaluate the two cigarettes on the day, 3, and 10 days when the cigarettes are produced. The numbers 1-10 indicate the intensity of mint flavor The larger the value, the stronger the relative mint taste. The mint taste on the day of production was evaluated as 10. The other time periods were scored and evaluated based on this standard. The results are shown in Table 2.

Table 2 Changes in the evaluation of two cigarettes over time

类别category	当天That day	3天3 days	10天10 days
含有纸基凝胶线的烟支Cigarettes containing paper-based gel thread	1010	99	8.58.5
含有载香棉线的烟支Cigarettes containing incense cotton thread	1010	88	55

Comparative Results:

It can be seen from Table 2 that in the two cigarettes, the mint flavor will be lost over time, but the peppermint flavor of the cigarettes containing the incense cotton thread is lost faster, and there is almost no mint flavor in the later stage. Therefore, the fragrance retention of the paper-based gel thread is much better than that of the fragrance-loaded cotton thread.

Example 4

In a cigarette composed of tobacco segments, filter rod hollow segments, filter rod solid segments A and filter rod solid segments B, a piece of paper-based gel line is implanted at the central axis of the tobacco segment, as shown in FIG. 2.

Example 5

A manufacturing method of paper-based gel thread for cigarettes, shown in Figure 5, includes the following steps:

(1) Select 6000CU, 35g/m ² special cigarette paper with a width of 30mm for embossing, and control the distance between the two stripe peaks to 3mm; rewind to obtain an embossed paper base 1. Among them, CU is the air permeability unit of cigarette paper, cm ³ /(min·cm ² ), which refers to the air flow (ml) passing through the surface of the test sample under 1 kilopascal (kPa) measurement pressure. Cm ³ /min per minute).

(2) Heat 10 kg of polyethylene glycol in a water bath to 75° C., wait for it to melt into a gel, add 2 kg of peppermint essence, stir for 10 minutes and mix uniformly to obtain a fragrance-carrying gel.

(3) Put the fragrance-carrying gel obtained in step (2) into the water bath 2 for continuous heating, and the heating temperature is 75°C.

(4) Unwind the embossed paper base 1 obtained in step (1), the unwinding speed is 8m/min, and it is conveyed horizontally to the coating roller 3, and the fragrance-carrying gel is used for coating. After coating Conveying a distance of 2m. During this process, the glued paper base is cooled. After cooling, the glued paper base will be gradually gathered by the first-stage gathering device 4, the second-stage gathering device 5, and the third-stage gathering device 6, and then rotated The twisting device 7 twists the paper base coated with the fragrance gel according to the twist requirement of 7.67 twists/m to obtain the shaped paper-based gel thread 9, and finally the paper-based gel thread 9 is formed by the winding device 8. Winding. The inner diameters of the primary, secondary, and tertiary gathering devices are 4mm, 3mm, and 2mm respectively.

The final paper-based gel thread has a diameter of 1.637 mm and a twist of 7.67 twists/m.

After experimental testing, the amount of fragrance-carrying gel per meter of paper-based gel line is 1.0148g, and the amount of mint flavor after conversion is 0.1691g/m. The paper-based gel line was cut horizontally and vertically at random positions several times. The cross-section is shown in Figure 1. The fragrance-carrying gel on the paper-based layer was evenly coated, and the fragrance-carrying gel did not fall off.

Comparative example 2

The experimental conditions are the same as those of Example 5, the only difference is that the folding step is a one-stage folding, and the inner diameter of the folding device is 2 mm.

The final paper-based gel thread has a diameter of 1.827mm and a twist of 7.67 twists/m.

After experimental testing, the amount of fragrance-carrying gel per meter of paper-based gel line is 0.7039g, and the amount of mint flavor after conversion is 0.1173g/m. The amount of fragrance-carrying gel and fragrance-carrying amount are significantly lower than the third grade. The process of gathering. In addition, during the preparation process, it was found that many fragrance-carrying gel layers fell off the paper base layer.

The above are only specific implementations of the present utility model, but the protection scope of the present utility model is not limited to this. Any person skilled in the art can easily think of changes or changes within the technical scope disclosed by the present utility model. Replacement shall be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

A paper-based gel thread, characterized in that, the paper-based gel thread is formed by twisting and twisting a composite paper-based strip, and the composite paper-based strip includes a gel layer carrying a functional material and a paper-based layer.
The paper-based gel thread according to claim 1, wherein the diameter of the end face of the paper-based gel thread is 1-3mm, the twist is 4-15 twists/m; the air permeability of the paper-based layer is 5000CU-15000CU , The weight is 25-40g/m 2 and the width is 20-60mm.
The paper-based gel string according to claim 1, wherein the gel layer carrying the functional material comprises a functional material and a gel; the functional material comprises at least one of a fragrance and a smoke agent.
A method for preparing a paper-based gel thread according to claim 1, wherein the preparation method comprises the following steps:

(1) Heating the gel material to form a gelatinous material, adding the functional material and mixing to obtain a gel carrying the functional material;

(2) Embossing the paper base to obtain an embossed paper base;

(3) Coating the functional material-carrying gel described in step (1) on the embossed paper base described in step (2); then cooling, gathering, and twisting to obtain the paper-based gel thread .
The preparation method according to claim 4, wherein the added amount of the functional material is 5%-60% of the weight of the gel substance;

In the embossing operation of step (2), the distance between the two patterns is 1-5 mm;

In step (3), the number of stages of the gathering is 2-5, and the gathering diameter of each stage is gradually reduced, and the inner diameter of the last stage gathering device is 0.2-1 mm larger than the diameter of the paper-based gel line.
A cigarette, characterized in that, the cigarette contains the paper-based gel thread according to claim 1.
The cigarette according to claim 6, wherein the paper-based gel thread is implanted in a section or sections of the cigarette that are not hollow.
The cigarette according to claim 6, wherein the number of the paper-based gel line implanted in each segment of the cigarette is 1-3, and each paper-based gel line can be installed in the cigarette Arranged anywhere in the middle.
The cigarette according to claim 6, wherein the paper-based gel lines contained in the same cigarette are the same or different.