Heated tobacco article and finished product pass rate testing method

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

[0001] 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

[0002] Heated tobacco products (HTPs) are a new type of tobacco product that uses a heat source of 200-400°C to heat tobacco, rather than burning it, to produce an aerosol for the user to inhale. Compared to traditional tobacco products, this heating-without-combustion method significantly reduces the generation of harmful substances from the high-temperature decomposition of tobacco, making it popular with consumers.

[0003] 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 consumers through the downstream tobacco matrix segment of the heated tobacco product.

[0004] Typically, substances released from tobacco substrates have a high temperature, and the amount of pleasure-enhancing compounds released is insufficient to meet consumer demand. Therefore, lowering aerosol temperature without reducing the amount of pleasure-enhancing compounds received by consumers, while still providing effective tar filtration, is desirable in the art. Conventional solutions in this area achieve this by connecting structural members with single convergence, cooling, and filtration functions in series.

[0005] Summary of the Invention

[0006] The technical problem addressed by this application is to provide a method for testing the qualified rate of heated tobacco products and finished products. This includes heated tobacco products with a mouthpiece structure that simultaneously functions as a smoke collector, cooler, and filter. This method increases the amount of compounds that enhance the consumer's experience of pleasure, while simultaneously lowering smoke temperature and filtering tar. This significantly reduces the cost of heated tobacco cigarettes and enhances the consumer experience. Furthermore, a method for determining the qualified rate of these heated tobacco products is provided to aid quality control during the production process and improve the yield rate.

[0007] The technical problem to be solved by this application is achieved through the following technical solutions:

[0008] One purpose of the present application is to provide a heated tobacco product, comprising: a tobacco matrix segment and a functional mouthpiece segment, which are connected by a wrapping material, and the functional mouthpiece segment includes 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.

[0009] Optionally, when the functional mouthpiece segment is a semi-olive-shaped hollow segment, the large inner diameter end of the semi-olive-shaped hollow segment of the functional mouthpiece segment abuts the tobacco matrix segment, and the small inner diameter end is arranged downstream away from the tobacco matrix segment.

[0010] 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.

[0011] 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 mouthpiece 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.

[0012] Optionally, when the functional mouthpiece 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 mouthpiece 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.

[0013] 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.

[0014] Optionally, when the functional mouthpiece segment includes two semi-olive-shaped hollow sections and two cylindrical inner cavity sections, the large inner diameter end of the upstream semi-olive-shaped hollow section abuts the tobacco matrix section, the small inner diameter end is connected to the upstream of the upstream cylindrical inner cavity section, the downstream of the upstream cylindrical inner cavity section is connected to the large inner diameter end of the downstream semi-olive-shaped hollow section, and the small inner diameter end of the downstream semi-olive-shaped hollow section is connected to the downstream cylindrical inner cavity section.

[0015] Optionally, the hollow section further includes 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 segment close to the tobacco matrix segment.

[0016] 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.

[0017] The present application provides a method for detecting the qualified rate of finished products of heated tobacco products, comprising the following steps:

[0018] Use a camera to take a picture of the functional mouthpiece or the lowest part of the cigarette and build a model. Measure the wall thickness at at least multiple locations 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 location illuminated by 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 multiple measured data from large to small, and take the maximum value d max and the minimum value d min , calculate the numerical value of eccentricity: If the eccentricity e>25%, it is considered unqualified.

[0019] The above technical solution of this application has the following beneficial effects:

[0020] 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 increased. 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

[0021] 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.

[0022] FIG1 is a schematic diagram of a heated tobacco product according to Example 1.

[0023] FIG2 is a schematic diagram of a heated tobacco product according to Example 2.

[0024] FIG3 is a schematic diagram of a heated tobacco product according to Example 3.

[0025] FIG4 is a smoke temperature test diagram of the heated tobacco product of Example 3.

[0026] FIG5 shows the smoke volume of the heated tobacco product of Example 3 represented by the degree of light obscuration.

[0027] FIG6 is a schematic diagram of a heated tobacco product according to Example 4.

[0028] FIG7 is a smoke temperature test diagram of the heated tobacco product of Example 4.

[0029] FIG8 shows the smoke volume of the heated tobacco product of Example 4 represented by the degree of obscuration.

[0030] FIG9 is a schematic diagram of a heated tobacco product according to Example 5.

[0031] FIG10 is a schematic diagram of the qualified rate detection of finished products of heated tobacco products.

[0032] Among them: 1-tobacco matrix section, 2-functional mouthpiece section, 3-hollow section, 4-air entry area, 5-cylindrical inner cavity section. DETAILED DESCRIPTION

[0033] Various exemplary embodiments of the present application will now be described in detail. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0034] This application discloses a heated tobacco product comprising: a tobacco substrate segment 1 and a functional nozzle segment 2, the tobacco substrate segment 1 and the functional nozzle segment 2 being rolled together by a wrapping material. The functional nozzle segment 2 is a one-piece cylindrical structure with 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 region 4 and a cylindrical inner cavity section 5.

[0035] Optionally, the tobacco substrate segment 1 is 8-20 mm long, the functional mouthpiece segment 2 is 25-50 mm long, the semi-olive-shaped 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.

[0036] The functional mouthpiece 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 mouthpiece segment.

[0037] The functional mouth rod segment 2 has the ability to absorb at least 5 mg of moisture from the mainstream smoke formed by the tobacco matrix segment.

[0038] The functional mouthpiece segment 2 has a capacity of filtering at least 12 mg of compounds in the mainstream smoke formed by the tobacco matrix segment.

[0039] The following examples are described in detail:

[0040] Example 1

[0041] As shown in Figure 1, when the functional nozzle segment 2 has only a semi-olive-shaped hollow section, the large inner diameter end of the semi-olive-shaped hollow section 3 of the functional nozzle segment abuts the tobacco substrate 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 adjacent to the tobacco substrate segment 1, or the air inlet area is located within 10 mm upstream of the small inner diameter end face or the end face of the most downstream cylindrical inner cavity.

[0042] Example 2

[0043] As shown in Figure 2, Example 2 is similar to Example 1, except that Example 2 includes a cylindrical inner cavity section 5, which is located at the downstream end. In other words, the cylindrical inner cavity section 5 is located at the end of the semi-olive-shaped hollow section 3 away from the tobacco substrate section 1.

[0044] Example 3

[0045] As shown in Figure 3, the functional mouthpiece segment 2 is a cylindrical structure that does not include the air inlet area 4. From upstream to downstream, it consists 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 the tobacco substrate section 1, and the large inner diameter end of the downstream semi-olive-shaped hollow section is at the most downstream end.

[0046] As shown in Figure 3, the semi-olive-shaped hollow section is about 14 mm long, the hollow section is about 5 mm long, and the tobacco matrix section is about 15 mm. 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 smoke volume represented by the shading degree is shown in Figure 5. The amounts of the main compound components in the mainstream smoke are shown in Table 1.

[0047] Table 1

[0048] The data above were obtained under the following conditions: Smoking conditions and smoking machine specifications are specified in ISO 3308 (ISO 3308:2000). Conditioning and test atmospheres are specified in ISO 3402. Cambridge filters were used to intercept the main compounds in mainstream smoke. Quantitative measurements were performed by gas chromatography.

[0049] The experiment investigated the cooling effect of the functional mouthpiece segment on the mainstream smoke at each puff and the amount of smoke at each puff.

[0050] Multiple aerosol generation procedures were performed using the Health Canada deep puff mode: 10 puffs were taken, each with a volume of 55 mL and a puff duration of 2 seconds, separated by 30 seconds between puffs. Five non-test puffs were taken before and after each aerosol generation procedure. A warm-up period of 15 seconds was used. Laboratory conditions during the experiment were (40 ± 4)% relative humidity (RH) and (22 ± 1)°C.

[0051] Example 4

[0052] As shown in Figure 6, the functional nozzle segment 2 is a cylindrical structure comprising an air inlet area, a semi-olive-shaped hollow section, a cylindrical inner cavity section, and a semi-olive-shaped hollow section from upstream to downstream. The large inner diameter end of the upstream semi-olive-shaped hollow section abuts the tobacco substrate section, and the large inner diameter end of the downstream semi-olive-shaped hollow section is at the far downstream. The air inlet area can be located in the upstream semi-olive-shaped hollow section or in the cylindrical inner cavity section.

[0053] As shown in Figure 6, the semi-olive-shaped hollow section is about 14 mm long, the hollow section is about 5 mm long, and the tobacco matrix section is about 15 mm. When the air inlet area is located 5 mm 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, combined with the oxygen-deficient heating tobacco device on the market (the oxygen-deficient heating tobacco device and oxygen-deficient smoking method used in WO2022253067A1 and WO2022133979A1), the smoke temperature when the test smoke leaves 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.

[0054] Table 2

[0055] The data above were obtained under the following conditions: Smoking conditions and smoking machine specifications are specified in ISO 3308 (ISO 3308:2000). Conditioning and test atmospheres are specified in ISO 3402. Cambridge filters were used to intercept the main compounds in mainstream smoke. Quantitative measurements were performed by gas chromatography.

[0056] The experiment investigated the cooling effect of the functional mouthpiece segment on the mainstream smoke at each puff and the amount of smoke at each puff.

[0057] Multiple aerosol generation procedures were performed using the Health Canada deep puff mode: eight puffs were taken, each with a volume of 55 mL and a puff duration of 2 seconds, separated by 30 seconds between puffs. Five non-test puffs were taken before and after each aerosol generation procedure. A warm-up period of 20 seconds was used. During the experiment, laboratory conditions were (40 ± 4)% relative humidity (RH) and (22 ± 1)°C.

[0058] Example 5

[0059] As shown in Figure 9, the functional mouthpiece segment is a cylindrical structure that includes or does not include an air inlet area, and is composed of a semi-olive-shaped hollow section, a cylindrical inner cavity section, a semi-olive-shaped hollow section, and a cylindrical inner cavity section from upstream to downstream. The large inner diameter end of the upstream semi-olive-shaped hollow section abuts the tobacco matrix section, the small inner diameter end of the downstream semi-olive-shaped hollow section is downstream, and the most downstream is the cylindrical inner cavity section. The air inlet area can be located in the semi-olive-shaped hollow section or in the upstream cylindrical inner cavity section.

[0060] The functional nozzle rod segment of the present application is made of a polymer bundle with adsorption and filtration properties, such as diacetate cellulose bundle, polypropylene bundle or polylactic acid bundle.

[0061] The functional nozzle rod segment has low transverse air permeability, and the wrapping material may be airtight.

[0062] A method for testing the qualified rate of finished heated tobacco products utilizes the fact that a functional mouthpiece has a structure that is essentially rotationally symmetrical along its central axis. Products with significantly different wall thicknesses in the downstream cross-section are considered unqualified. The method specifically includes the following steps: using a camera to photograph the functional mouthpiece or the downstream end of a cigarette and modeling it; measuring the wall thickness at at least multiple locations in the model; aligning the center of a cross-light source with the center of a circle formed by the outer diameter; measuring the wall thickness at the location illuminated by the cross-light source; rotating the cross-light source by 20 to 25 degrees; and measuring the wall thickness again. Multiple measurements can be performed randomly, and the data from the multiple measurements are sorted from largest to smallest, with the maximum value d being taken. max and the minimum value d min , calculate the numerical value of eccentricity: If the eccentricity e>25%, it is considered unqualified, as shown in Figure 10.

[0063] The filter rod comprising a semi-olive-shaped hollow section involved in the present application has an inner cavity structure designed as a smooth, tapering cavity, which reduces turbulent motion in the flow of mainstream smoke, greatly reduces the collision of aerosol droplets contained in the mainstream smoke with the inner wall of the filter rod, and increases the amount of nicotine and substances that enhance pleasure received by consumers.

[0064] 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, which enhance the pleasure feeling. In this process, a small amount of tar formed by the agglomeration of weak polar substances cannot be carried out because it is absorbed by the inner wall of the filter rod.

[0065] Although the present application has been disclosed above with reference to the embodiments, they are not intended to limit the present application. Any person skilled in the art may make various choices and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application is defined by the claims and their equivalents.

Claims

1. A heated tobacco product, characterized in that: include: A tobacco matrix segment (1) and a functional mouthpiece segment (2) are connected by rolling with a wrapping material. The functional mouthpiece segment (2) includes at least one semi-olive-shaped hollow segment (3). The functional mouthpiece segment (2) may or may not include an air inlet area (4) and a cylindrical inner cavity segment (5).

2. The heated tobacco product according to claim 1, 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).

3. The heated tobacco product according to claim 1, 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).

4. The heated tobacco product according to claim 2 or 3, 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 section (2) close to the tobacco matrix section (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.

5. The heated tobacco product according to claim 1, characterized in that When the functional mouthpiece segment (2) includes two semi-olive-shaped hollow segments (3), the two hollow segments (3) are symmetrically connected via a cylindrical inner cavity segment (5), the large inner diameter end of the upstream semi-olive-shaped hollow segment of the functional mouthpiece segment (2) abuts against the tobacco matrix segment (1), and the large inner diameter end of the downstream semi-olive-shaped hollow segment is located downstream away from the tobacco matrix segment (1).

6. The heated tobacco product according to claim 5, 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 face of the semi-olive-shaped hollow section of the functional mouth rod segment close to the tobacco matrix segment (1).

7. The heated tobacco product according to claim 1, 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 against 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.

8. The heated tobacco product according to claim 7, characterized in that The hollow section (3) also includes an air inlet area (4), which is located 5 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.

9. The heated tobacco product according to claim 1, 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.

10. The method for detecting the qualified rate of finished heated tobacco products according to any one of claims 1 to 9, characterized in that: The following steps are involved: Use a camera to take a picture of the functional mouthpiece or the lowest downstream of the cigarette and build a model, and measure the wall thickness at at least multiple locations 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 multiple measured data from large to small, and take the maximum value d max and the minimum value d min , calculate the value of eccentricity: If the eccentricity e>25%, it is considered unqualified.

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