WO2025035653A1 - Heated tobacco article and finished product pass rate testing method - Google Patents

Abstract

Disclosed in the present application are a heated tobacco article and a finished product pass rate testing method. The heated tobacco article comprises: a tobacco matrix section and a functional mouthpiece section which are in rolling connection by means of a wrapping material, wherein the functional mouthpiece section is an integrated cylindrical structural member with a through cavity, and is at least provided with a semi-olive-shaped hollow section, the hollow section comprising or not comprising an air intake area and a cylindrical inner cavity section. According to the present application, the through cavity is provided such that the amount of nicotine received by a consumer, the quantity of substances for enhancing the pleasant feeling, etc., are greatly increased, however, because the collision probability of a fluid at a necking position and a side wall is rapidly improved, a certain tar filtering effect is achieved at the necking position; and aerosol temperature can be rapidly reduced due to turbulent motion of the fluid and because of a small amount of fresh air entering the air intake area.

Description

A method for detecting the qualified rate of heated tobacco products and finished products Technical Field

The present application relates to the field of tobacco technology, and in particular to a method for detecting the qualified rate of heated tobacco products and finished products.

Background Art

Heated tobacco products are generally a new type of tobacco product that heats tobacco materials at 200-400℃ instead of burning them to produce aerosols for users to smoke. Compared with traditional tobacco products, the method of heating without burning to produce aerosols greatly reduces the large amount of harmful substances generated by high-temperature decomposition of tobacco materials, and is therefore popular among consumers.

During the use of heated tobacco products, compounds that enhance consumers' pleasure and a small amount of tar that consumers are unwilling to accept are released from the tobacco matrix through thermal diffusion. The external air carries the compounds that enhance pleasure and a small amount of tar released from the tobacco matrix segment, forms an aerosol through cooling, and is inhaled by the consumer through the downstream tobacco matrix segment of the heated tobacco product.

Generally, the temperature of the substance released by the tobacco matrix is relatively high, and the amount of the released compounds that enhance the pleasure is insufficient to meet the needs of consumers. Therefore, it is desirable in the art to reduce the aerosol temperature without reducing the amount of the compounds that enhance the pleasure received by consumers and to provide effective filtration of tar. The conventional solution in the art is to achieve the above purpose by connecting structural members with single convergence, cooling and filtering functions in series step by step.

Summary of the invention

The technical problem to be solved by this application is to provide a method for detecting the qualified rate of heated tobacco products and finished products, including heated tobacco products with a mouthpiece structure that has smoke convergence, cooling and filtering functions, which increases the amount of compounds that enhance the pleasure received by consumers, while reducing the smoke temperature and having the function of filtering tar, so as to greatly reduce the cigarette cost of heated tobacco products and enhance the consumer experience. At the same time, a method for determining the qualified rate of this type of heated tobacco products is provided to help with quality control of the production and processing process. Improve yield rate.

The technical problem to be solved by this application is achieved through the following technical solutions:

The present application aims to provide a heated tobacco product, comprising: a tobacco matrix segment and a functional mouthpiece segment, which are connected by rolling a wrapping material, wherein the functional mouthpiece segment comprises at least one semi-olive-shaped hollow section, and the functional mouthpiece segment includes or does not include an air inlet area and a cylindrical inner cavity section.

Optionally, when the functional mouth rod segment is a semi-olive-shaped hollow section, the large inner diameter end of the semi-olive-shaped hollow section of the functional mouth rod segment abuts against the tobacco matrix section, and the small inner diameter end is arranged downstream away from the tobacco matrix section.

Optionally, when the functional mouth rod segment is a semi-olive-shaped hollow section and the functional mouth rod segment includes a cylindrical inner cavity section, the large inner diameter end of the semi-olive-shaped hollow section of the functional mouth rod segment abuts against the small inner diameter end surface of the tobacco matrix section and is connected to the cylindrical inner cavity section away from the tobacco matrix section.

Optionally, when the hollow section includes an air entry area, the air entry area is located within 10 mm downstream of the large inner diameter end face of the semi-olive-shaped hollow section of the functional mouth rod section close to the tobacco matrix section, or the air entry area is located within 10 mm upstream of the small inner diameter end face or the cylindrical inner cavity end face.

Optionally, when the functional mouth rod segment includes two semi-olive-shaped hollow sections, the two hollow sections are symmetrically connected by a cylindrical inner cavity section, the large inner diameter end of the upstream semi-olive-shaped hollow section of the functional mouth rod segment abuts the tobacco matrix section, and the large inner diameter end of the downstream semi-olive-shaped hollow section is located downstream away from the tobacco matrix section.

Optionally, when the hollow section includes an air inlet area, the air inlet area is located 5 mm downstream of the large inner diameter end surface of the semi-olive-shaped hollow section of the functional mouth rod segment close to the tobacco matrix segment.

Optionally, when the functional mouthpiece segment includes two semi-olive-shaped hollow segments and two cylindrical inner cavity segments, the large inner diameter end of the upstream semi-olive-shaped hollow segment abuts against the tobacco substrate segment, and the small inner diameter end is connected to the upstream of the upstream cylindrical inner cavity segment, and the downstream of the upstream cylindrical inner cavity segment is connected to the downstream semi-olive-shaped hollow segment. The large inner diameter end of the hollow section is connected, and the small inner diameter end of the downstream semi-olive-shaped hollow section is connected to the downstream cylindrical inner cavity section.

Optionally, the hollow section further comprises an air inlet area, which is located 5 mm downstream of the large inner diameter end surface of the semi-olive-shaped hollow section of the functional mouth rod section close to the tobacco matrix section.

Optionally, the tobacco matrix segment is 8-20 mm long, the functional mouthpiece segment is 25-50 mm long, the semi-olive-shaped hollow segment is 10-30 mm long, and the hollow segment is 2-10 mm long.

The present application provides a method for detecting the qualified rate of finished products of heated tobacco products, comprising the following steps:

Use a camera to take pictures of the functional mouthpiece or the lowest downstream of the cigarette and build a model, and measure the wall thickness at at least multiple positions in the model: overlap the center of the cross light source with the center of the circle formed by the outer diameter, measure the wall thickness at the cross light source, rotate the cross light source 20 to 25 degrees, and measure the wall thickness again. You can randomly measure multiple times, sort the data from multiple measurements from large to small, take the maximum value d _max and the minimum value d _min , and calculate the value of the eccentricity: If the eccentricity e>25%, it is considered unqualified.

The above technical solution of this application has the following beneficial effects:

Compared with traditional filter rods, the present application adopts a through cavity, and the amount of nicotine and substances that enhance pleasure received by consumers is greatly improved. However, since the probability of the fluid colliding with the side wall at the necking point increases rapidly, there is a certain effect of filtering tar at the necking point. At the same time, due to the turbulent movement of the fluid and the entry of a small amount of fresh air into the air intake area, the aerosol temperature can be rapidly reduced.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

FIG. 1 is a schematic diagram of a heated tobacco product of Example 1.

FIG. 2 is a schematic diagram of a heated tobacco product of Example 2.

FIG3 is a schematic diagram of a heated tobacco product of Example 3.

FIG. 4 is a smoke temperature test diagram of the heated tobacco product of Example 3.

FIG. 5 shows the smoke volume of the heated tobacco product of Example 3 characterized by the degree of shading.

FIG. 6 is a schematic diagram of a heated tobacco product of Example 4.

FIG. 7 is a smoke temperature test diagram of the heated tobacco product of Example 4.

FIG. 8 shows the smoke volume of the heated tobacco product of Example 4 characterized by the degree of shading.

FIG. 9 is a schematic diagram of a heated tobacco product of Example 5.

FIG. 10 is a schematic diagram of the qualified rate detection of finished products of heated tobacco products.

Among them: 1-tobacco matrix section, 2-functional mouth rod section, 3-hollow section, 4-air inlet area, 5-cylindrical inner cavity section.

DETAILED DESCRIPTION

Various exemplary embodiments of the present application will now be described in detail. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application.

The present application discloses a heated tobacco product, comprising: a tobacco matrix segment 1 and a functional nozzle segment 2, wherein the tobacco matrix segment 1 and the functional nozzle segment 2 are rolled together by a wrapping material. The functional nozzle segment 2 is an integral cylindrical structural member having a through cavity, and has at least one semi-olive-shaped hollow section 3. The functional nozzle segment 2 may or may not include an air inlet area 4 and a cylindrical inner cavity section 5.

Optionally, the tobacco substrate segment 1 is 8-20 mm long, the functional mouthpiece segment 2 is 25-50 mm long, the semi-olive hollow section 3 is 10-30 mm long, and the hollow section is 2-10 mm long. The air inlet area includes at least one air inlet hole, which penetrates the wrapping material but may or may not penetrate the mouthpiece material.

The functional mouth rod segment 2 has the function of cooling the mainstream smoke formed by the tobacco matrix segment 1 by more than 15°C after passing through the functional mouth rod segment.

The functional mouth rod segment 2 has the ability to absorb at least 5 mg of moisture in the mainstream smoke formed by the tobacco matrix segment.

The functional mouth rod segment 2 has a capacity of filtering at least 12 mg of compounds in the mainstream smoke formed by the tobacco matrix segment.

The following is described in detail with examples:

Example 1

As shown in FIG1 , when the functional nozzle segment 2 has only one semi-olive-shaped hollow section, the large inner diameter end of the semi-olive-shaped hollow section 3 of the functional nozzle segment abuts against the tobacco matrix segment, and the small inner diameter end is downstream. The air inlet area 4 is located within 10 mm downstream of the large inner diameter end face of the semi-olive-shaped hollow section of the functional nozzle segment 2 close to the tobacco matrix segment 1, or the air inlet area is located within the 10 mm area upstream of the small inner diameter end face or the most downstream cylindrical inner cavity end face.

Example 2

As shown in FIG2 , Example 2 is similar to Example 1, except that Example 2 includes a cylindrical inner cavity section 5, which is located at the most downstream. That is, the cylindrical inner cavity section 5 is disposed at one end of the semi-olive-shaped hollow section 3 away from the tobacco substrate section 1 .

Example 3

As shown in Fig. 3, when the functional mouthpiece segment 2 does not include the air inlet area 4, from upstream to downstream, it is a cylindrical structure of a semi-olive-shaped hollow section 3, a cylindrical inner cavity section 5 and a semi-olive-shaped hollow section. The large inner diameter end of the upstream semi-olive-shaped hollow section abuts against the tobacco matrix segment 1, and the large inner diameter end of the downstream semi-olive-shaped hollow section is at the most downstream.

As shown in Figure 3, the semi-olive-shaped hollow section is about 14mm long, the hollow section is about 5mm long, and the tobacco matrix section is about 15mm. When used with ordinary heated tobacco devices on the market, the smoke temperature when the smoke leaves the downstream end of the cigarette is tested as shown in Figure 4. The amount of smoke represented by the shading degree is shown in Figure 5. The amounts of major compound components in the mainstream smoke are shown in Table 1.

Table 1

The above data were obtained under the following conditions: Smoking conditions and smoking machine specifications are specified in ISO standard 3308 (ISO 3308:2000). The conditioning and test atmospheres are specified in ISO standard 3402. Cambridge filters were used to intercept the main compounds in mainstream smoke. Quantitative measurements were performed by gas chromatography.

The experiment investigated the cooling effect of the functional mouthpiece segment on the mainstream smoke drawn at each puff and the amount of smoke drawn at each puff.

Multiple aerosol generation procedures were performed in the Health Canada deep puff mode: 10 puffs were performed, each with a volume of 55 mL and a puff duration of 2 seconds, with a puff interval of 30 seconds. Five non-test puffs were performed before and after each aerosol generation procedure. The warm-up time was 15 seconds. During the experiment, laboratory conditions were (40 ± 4)% relative humidity (RH) and a temperature of (22 ± 1) °C.

Example 4

As shown in Figure 6, the functional mouthpiece section 2 is a cylindrical structure including an air inlet area, a semi-olive hollow section, a cylindrical inner cavity section and a semi-olive hollow section from upstream to downstream. The large inner diameter end of the upstream semi-olive hollow section abuts the tobacco matrix section, and the large inner diameter end of the downstream semi-olive hollow section is at the most downstream. The air inlet area can be located in the upstream semi-olive hollow section or in the cylindrical inner cavity section.

As shown in the structure of Figure 6, the semi-olive-shaped hollow section is about 14mm long, the hollow section is about 5mm long, and the tobacco matrix section is about 15mm. When the air entry area is located 5mm downstream of the large inner diameter end face of the semi-olive-shaped hollow section of the functional mouthpiece section close to the tobacco matrix section, in conjunction with the oxygen-depleted heating tobacco device on the market (the oxygen-depleted heating tobacco device and oxygen-depleted smoking method used in WO2022253067A1 and WO2022133979A1), the smoke temperature of the test smoke leaving the most downstream end face of the cigarette is shown in Figure 7 below, the smoke volume characterized by shading degree is shown in Figure 8, and the amounts of the main compound components in the smoke are shown in Table 2.

Table 2

The above data were obtained under the following conditions: Smoking conditions and smoking machine specifications are specified in ISO standard 3308 (ISO 3308:2000). The conditioning and test atmospheres are specified in ISO standard 3402. Cambridge filters were used to intercept the main compounds in mainstream smoke. Quantitative measurements were performed by gas chromatography.

The experiment investigated the cooling effect of the functional mouthpiece segment on the mainstream smoke drawn at each puff and the amount of smoke drawn at each puff.

Multiple aerosol generation procedures were performed in the Health Canada deep puff mode: 8 puffs were performed, each with a volume of 55 mL and a puff duration of 2 seconds, with a puff interval of 30 seconds. Five non-test puffs were performed before and after each aerosol generation procedure. The warm-up time was 20 seconds. During the experiment, laboratory conditions were (40 ± 4)% relative humidity (RH) and a temperature of (22 ± 1) °C.

Example 5

As shown in Figure 9, or the functional mouthpiece section is a cylindrical structure that includes or does not include an air entry area, and is sequentially a semi-olive hollow section, a cylindrical inner cavity section, a semi-olive hollow section, and a cylindrical inner cavity section from upstream to downstream. The large inner diameter end of the upstream semi-olive hollow section abuts the tobacco substrate section, and the small inner diameter end of the downstream semi-olive hollow section is downstream, and the most downstream is a cylindrical inner cavity section. The air entry area can be located in the semi-olive hollow section, and can also be located in the upstream cylindrical inner cavity section.

The functional nozzle rod segment of the present application is made of a polymer bundle with adsorption and filtration properties, such as a cellulose diacetate bundle, a polypropylene bundle or a polylactic acid bundle.

The functional nozzle rod segment has low lateral air permeability, and the wrapping material may be airtight.

A method for testing the qualified rate of finished heated tobacco products, using the structure of a functional mouthpiece that is basically rotationally symmetrical along the central axis, and the downstream cross-section with a large difference in wall thickness is a defective product. Specifically, the following steps are included: using a camera to take a photo of the functional mouthpiece or the downstream of the cigarette and build a model, measuring the wall thickness at at least multiple positions in the model: aligning the center of the cross light source with the center of the circle formed by the outer diameter, measuring the wall thickness at the cross light source, rotating the cross light source 20 to 25 degrees, and measuring the wall thickness again. The measurement can be performed randomly multiple times, and the data of the multiple measurements are sorted from large to small, taking the maximum value d _max and the minimum value d _min , and calculating the deviation Heart rate value: If the eccentricity e>25%, it is considered unqualified. As shown in Figure 10.

The filter rod comprising a semi-olive-shaped hollow section involved in the present application has an inner cavity structure designed as a smooth tapered cavity, which reduces turbulent motion in the flow of mainstream smoke, greatly reduces the collision between aerosol droplets contained in the mainstream smoke and the inner wall of the filter rod, and increases the amount of nicotine and substances that enhance pleasure received by consumers.

In particular, combined with the air intake structure, the entry of fresh air can quickly reduce the mainstream smoke temperature. At the same time, the smooth tapered cavity is conducive to the air carrying out stronger or highly polar substances attached to the inner cavity wall, such as nicotine and glycerin and other substances that enhance the pleasure feeling. In this process, a small amount of tar formed by the agglomeration of weak polar substances cannot be carried because it is absorbed by the inner wall of the filter rod.

Although the present application has been disclosed as above with the embodiments, it is not intended to limit the present application. Any technical personnel in this field can make various choices and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application is limited by the claims and their equivalents.

Claims (10)

A heated tobacco product, characterized in that it comprises: a tobacco matrix segment (1) and a functional mouthpiece segment (2), which are connected by rolling with a wrapping material, wherein the functional mouthpiece segment (2) comprises at least one semi-olive-shaped hollow segment (3), and the functional mouthpiece segment (2) may or may not include an air inlet area (4) and a cylindrical inner cavity segment (5). The heated tobacco product according to claim 1 is characterized in that, when the functional mouthpiece segment (2) is a semi-olive-shaped hollow segment, the large inner diameter end of the semi-olive-shaped hollow segment of the functional mouthpiece segment (2) abuts against the tobacco matrix segment (1), and the small inner diameter end is arranged downstream away from the tobacco matrix segment (1). The heated tobacco product according to claim 1 is characterized in that, when the functional mouthpiece segment (2) is a semi-olive-shaped hollow segment, and the functional mouthpiece segment (2) includes a cylindrical inner cavity segment (5), the large inner diameter end of the semi-olive-shaped hollow segment of the functional mouthpiece segment (2) abuts against the tobacco matrix segment (1), and the small inner diameter end face is away from the tobacco matrix segment (1) and is connected to the cylindrical inner cavity segment (5). The heated tobacco product according to claim 2 or 3 is characterized in that, when the hollow section (3) includes an air inlet area (4), the air inlet area (4) is located within 10 mm downstream of the large inner diameter end face of the semi-olive-shaped hollow section of the functional mouthpiece segment (2) close to the tobacco matrix segment (1), or the air inlet area (4) is located within 10 mm upstream of the small inner diameter end face or the cylindrical inner cavity end face. The heated tobacco product according to claim 1 is characterized in that, when the functional mouthpiece segment (2) includes two semi-olive-shaped hollow sections (3), the two hollow sections (3) are symmetrically connected by a cylindrical inner cavity section (5), and the large inner diameter end of the upstream semi-olive-shaped hollow section of the functional mouthpiece segment (2) abuts against the tobacco matrix section (1), and the large inner diameter end of the downstream semi-olive-shaped hollow section is located downstream away from the tobacco matrix section (1). The heated tobacco product according to claim 5 is characterized in that, when the hollow section (3) includes an air inlet area (4), the air inlet area (4) is located 5 mm downstream of the large inner diameter end surface of the semi-olive-shaped hollow section of the functional mouth rod section close to the tobacco matrix section (1). The heated tobacco product according to claim 1 is characterized in that when the functional mouthpiece segment (2) includes two semi-olive-shaped hollow segments (3) and two cylindrical inner cavity segments (5), the large inner diameter end of the upstream semi-olive-shaped hollow segment abuts the tobacco matrix segment (1), and the small inner diameter end is connected to the upstream of the upstream cylindrical inner cavity segment (5), the downstream of the upstream cylindrical inner cavity segment (5) is connected to the large inner diameter end of the downstream semi-olive-shaped hollow segment, and the small inner diameter end of the downstream semi-olive-shaped hollow segment is connected to the downstream cylindrical inner cavity segment. The heated tobacco product according to claim 7 is characterized in that the hollow section (3) also includes an air inlet area (4), and the air inlet area (4) is located 5 mm downstream of the large inner diameter end surface of the semi-olive-shaped hollow section of the functional mouthpiece section close to the tobacco matrix section. The heated tobacco product according to claim 1 is characterized in that the tobacco matrix segment (1) is 8-20 mm long, the functional mouthpiece segment (2) is 25-50 mm long, the semi-olive-shaped hollow segment (3) is 10-30 mm long, and the hollow segment is 2-10 mm long. The method for detecting the qualified rate of finished heated tobacco products according to any one of claims 1 to 9 is characterized in that it comprises the following steps: Use a camera to take pictures of the functional mouthpiece or the lowest downstream of the cigarette and build a model, and measure the wall thickness at at least multiple positions in the model: overlap the center of the cross light source with the center of the circle formed by the outer diameter, measure the wall thickness at the cross light source, rotate the cross light source 20 to 25 degrees, and measure the wall thickness again. You can randomly measure multiple times, sort the data from multiple measurements from large to small, take the maximum value d _max and the minimum value d _min , and calculate the value of the eccentricity: If the eccentricity e>25%, it is considered unqualified.