Low-adsorption filter tip and heating cigarette

Abstract

The utility model provides a low-adsorption filter tip and a heating cigarette, and belongs to the technical field of tobacco products. The low-adsorption filter tip is used for heating cigarettes and comprises a low-adsorption section, the low-adsorption section comprises forming paper and a low-adsorption paper base wrapped in the forming paper, the low-adsorption paper base comprises a paper base and a low-adsorption film, and the low-adsorption film is formed by in-situ polymerization of a silicone oil reagent on the surface of the paper base. The silicone oil reagent comprises at least one of amino silicone oil and vinyl silicone oil.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tobacco products, especially to a low-adsorption filter rod and a heated cigarette. BACKGROUND

[0002] The heated but not combusted tobacco product mainly heats tobacco sheet or tobacco shred through a heating source, and the heating temperature is just enough to make the tobacco leaf emit tobacco aroma, but the tobacco leaf is not ignited, and the aroma components and nicotine only meet the needs of the smoker through volatilization. Since the tobacco sheet or tobacco shred is not combusted but only in a heated state, harmful components generated by high-temperature combustion and cracking of tobacco are avoided, and the health risk of consumers is reduced. Compared with other new tobacco products, the heated but not combusted tobacco product is most close to traditional cigarettes in sensory quality and smoking method, and therefore attracts much attention.

[0003] In the related art, the heated cigarette mostly adopts a three-section type, i.e., a smoking section, a temperature-reducing section (supporting section), and a filtering section. When the cigarette reaches an atomization temperature under the heating condition of 250-350℃, the atomizing agent and aroma substances in the smoking section material are vaporized and condensed to form aerosol. Since the smoking medium of the heated cigarette is less than that of the traditional cigarette, and only low-temperature heating is performed without high-temperature combustion, the smoke amount of the heated cigarette is greatly reduced compared with that of the traditional cigarette, and the smoking satisfaction and experience are poor. SUMMARY

[0004] Therefore, in order to at least partially solve at least one of the above-mentioned technical problems, the utility model provides a low-adsorption filter rod and a heated cigarette.

[0005] According to an embodiment of the utility model, a low-adsorption filter rod for a heated cigarette is provided, and the low-adsorption filter rod comprises a low-adsorption section, the low-adsorption section comprises a plug wrap, and a low-adsorption paper base wrapped in the plug wrap, the low-adsorption paper base comprises a paper base and a low-adsorption film, the low-adsorption film is formed by in-situ polymerization of a silicon oil reagent on the surface of the paper base, and the silicon oil reagent comprises at least one of amino silicon oil and vinyl silicon oil.

[0006] According to an embodiment of the utility model, the low-adsorption section has a plurality of holes penetrating through both ends, and the area of the plurality of holes penetrating through both ends accounts for 20%-30% of the area of the end of the low-adsorption filter rod.

[0007] According to an embodiment of the utility model, the length of the low-adsorption paper base is equal to the length of the low-adsorption section, and the width of the paper base is 8-25 cm.

[0008] According to an embodiment of the utility model, the surface of the paper base has an embossing, and the width of the embossing is 3-5 mm.

[0009] According to embodiments of this invention, the above-mentioned low-adsorption membrane has a unit area mass based on silicon of 0.5~5.0 g / m³. 2 .

[0010] According to an embodiment of the present invention, the temperature for the above-mentioned in-situ polymerization is 80℃~180℃.

[0011] According to embodiments of this utility model, the basis weight of the above-mentioned paper base is 20~100 g / m³. 2 .

[0012] According to an embodiment of the present invention, the length of the low-adsorption section is 5~10mm.

[0013] According to an embodiment of the present invention, the aforementioned low-adsorption nozzle further includes a functional section, which includes one or more of a support end, a cooling section, and a fragrance-adding section.

[0014] According to an embodiment of the present invention, the aforementioned low-adsorption nozzle rod further includes an outer forming paper, which wraps around the outside of the aforementioned low-adsorption section and the aforementioned functional section.

[0015] According to another aspect of the present invention, a heated cigarette is provided, the heated cigarette including a low-adsorption mouthpiece, the low-adsorption mouthpiece including a low-adsorption section, the low-adsorption section being formed by wrapping a low-adsorption paper base with molded paper, the low-adsorption paper base including a paper base and a low-adsorption film, the low-adsorption film being formed by in-situ polymerization of a silicone oil reagent on the surface of the paper base, the silicone oil reagent including at least one of amino silicone oil or vinyl silicone oil.

[0016] According to an embodiment of the present invention, the heated cigarette further includes a smoke-generating section, which is configured such that cigarette paper wraps around a smoke-generating medium, and the smoke-generating medium is a medium that can release aerosols when heated.

[0017] According to another embodiment of the present invention, a heated non-combustible tobacco product is provided, comprising a heated cigarette, wherein the heated cigarette comprises a low-adsorption mouthpiece, the low-adsorption mouthpiece comprises a low-adsorption section, the low-adsorption section is formed by wrapping a low-adsorption paper base with molded paper, the low-adsorption paper base comprises a paper base and a low-adsorption film, the low-adsorption film is formed by in-situ polymerization of a silicone oil reagent on the surface of the paper base, wherein the silicone oil reagent comprises at least one of amino silicone oil or vinyl silicone oil.

[0018] According to embodiments of this invention, utilizing the film-forming and hydrophobic properties of silicone oil reagents, a low-adsorption film is formed in situ polymerized on the paper substrate surface. The low-adsorption paper substrate, including the low-adsorption film, forms a low-adsorption section, which reduces the adsorption of smoke and fumes by the mouthpiece, allowing smoke and fumes to flow out quickly and smoothly from the low-adsorption section, resulting in sufficient fumes and improving the satisfaction and experience of vaping. Furthermore, the low-adsorption film polymerized from amino silicone oil and / or vinyl silicone oil has good temperature resistance, improving the temperature resistance of the low-adsorption section. Attached Figure Description

[0019] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0020] Figure 1 A cross-sectional schematic diagram of a low-absorption mouthpiece for heating cigarettes according to an embodiment of the present invention is shown.

[0021] Figure 2 A cross-sectional schematic diagram of a low-absorption mouthpiece for heating cigarettes according to another embodiment of the present invention is shown;

[0022] Figure 3 A cross-sectional schematic diagram of a low-absorption mouthpiece for heating cigarettes according to another embodiment of the present invention is shown;

[0023] The meanings of the reference numerals in the above figures are as follows:

[0024] 1-Low adsorption section;

[0025] 11-Low adsorption paper base;

[0026] 12-Formed paper;

[0027] 2-Functional segment;

[0028] 3-Smoke-generating section;

[0029] 4-Outer forming paper;

[0030] 5-Pickling paper. Detailed Implementation

[0031] The embodiments of the present invention will now be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention. In the following detailed description, numerous specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention for ease of explanation. However, it will be apparent that one or more embodiments may be practiced without these specific details. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the present invention.

[0032] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "comprising" as used herein indicates the presence of features, steps, or operations, but does not exclude the presence or addition of one or more other features.

[0033] When using expressions such as "at least one of A, B, and C," the expression should generally be interpreted in accordance with the meaning commonly understood by a person skilled in the art (e.g., "a system having at least one of A, B, and C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C, etc.). When using expressions such as "at least one of A, B, or C," the expression should generally be interpreted in accordance with the meaning commonly understood by a person skilled in the art (e.g., "a system having at least one of A, B, or C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C, etc.).

[0034] Fiber acetate is used in traditional cigarette filters due to its good adsorption and formability. In related technologies, the filter section of heated cigarettes uses traditional fiber acetate. However, due to the good adsorption of fiber acetate, the filter section adsorbs a lot of smoke and vapor, which to some extent reduces the satisfaction and experience of consumers smoking heated cigarettes.

[0035] The inventors of this invention have discovered that by improving the filter section, the amount of smoke and vapor it absorbs can be reduced, thereby enhancing the satisfaction and experience of consumers smoking heated cigarettes.

[0036] In view of this, the present invention provides a low-adsorption mouthpiece for heating cigarettes to reduce the adsorption of smoke. Through the design of the low-adsorption material, the smoke can flow out quickly and smoothly from the low-adsorption mouthpiece, with sufficient smoke, thereby improving the satisfaction of smoking.

[0037] Figure 1 A cross-sectional schematic diagram of a low-absorption mouthpiece for heating cigarettes according to an embodiment of the present invention is shown.

[0038] like Figure 1 As shown, the low-adsorption mouthpiece for heating cigarettes includes a low-adsorption section 1, which includes a forming paper 12 and a low-adsorption paper base 11 wrapped within the forming paper 12. The low-adsorption paper base 11 includes a paper base and a low-adsorption film. The low-adsorption film is formed by in-situ polymerization of a silicone oil reagent on the surface of the paper base. The silicone oil reagent includes at least one of amino silicone oil and vinyl silicone oil.

[0039] According to embodiments of this invention, utilizing the film-forming and hydrophobic properties of silicone oil reagents, a low-adsorption film is formed in situ polymerized on the paper substrate surface. The low-adsorption paper substrate 11, including the low-adsorption film, forms a low-adsorption section 1, which reduces the adsorption of smoke and vapor by the mouthpiece, allowing smoke and vapor to flow out quickly and smoothly from the low-adsorption section 1, resulting in sufficient vapor volume and enhancing the satisfaction and experience of smoking heated cigarettes. Furthermore, the low-adsorption film polymerized from amino silicone oil and / or vinyl silicone oil exhibits good temperature resistance, improving the temperature resistance of the low-adsorption section 1.

[0040] In addition, by using in-situ polymerization, silicone oil reagents can enter the pores of the paper substrate, which can improve the bonding strength between the paper substrate and the low-adsorption membrane and reduce the amount of low-adsorption membrane required.

[0041] According to an embodiment of this utility model, the low-adsorption section 1 can be formed by multiple folds of the low-adsorption paper base 11, with the folding direction being the axial direction of the low-adsorption section 1. The length of the low-adsorption paper base 11 is equal to the length of the low-adsorption section 1, and the width of the paper base is 8-25 cm. For example, the width of the paper base can be 8 cm, 9 cm, 10 cm, 13 cm, 15 cm, 17 cm, 20 cm, 23 cm, 25 cm, or a range consisting of any two of the above values. A paper base width within the above range allows for a faster and smoother flow of smoke and vapor from the low-adsorption section 1 when smoking heated cigarettes.

[0042] Specifically, the low-adsorption paper base 11 can be cut into widths of 8-25cm according to the design requirements of the low-adsorption filter rod. Before entering the smoking gun, the cut low-adsorption paper base 11 can be pre-folded and shaped step by step by two pairs of pressure rollers. After exiting the double pressure rollers, the pre-folded low-adsorption paper base 11 is pulled by a belt driven by a motor-driven pulley to reduce slippage. At the same time, the pulley applies a certain amount of compression and fixation to the folded low-adsorption paper base 11, thereby improving the uniformity and roundness of the pores. Finally, it is wrapped by the forming paper 12.

[0043] According to an embodiment of this utility model, the low-adsorption section 1 may have a plurality of holes penetrating both ends, and the area of ​​the plurality of holes penetrating both ends accounts for 20% to 30% of the area of ​​the end of the low-adsorption nozzle rod. Optionally, the area of ​​the plurality of holes penetrating both ends may account for 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30% of the area of ​​the end of the low-adsorption nozzle rod, or a range consisting of any two of the above values. The plurality of holes penetrating both sides in the low-adsorption section 1 allows the smoke and vapor to flow out of the low-adsorption section 1 more quickly and smoothly when smoking heated cigarettes.

[0044] In some embodiments of this invention, a silicone oil reagent can be coated onto the surface of a paper base, and then the silicone oil reagent can be polymerized in situ to form a protective film. The silicone oil reagent may include amino silicone oil, or it may include vinyl silicone oil, or it may include both amino silicone oil and vinyl silicone oil.

[0045] It should be noted that, in addition to amino silicone oil and / or vinyl silicone oil, the silicone oil reagent may also include a solvent to ensure that the amino silicone oil and / or vinyl silicone oil are evenly coated on the surface of the paper base.

[0046] For example, the silicone oil reagent may further include ethanol, and the volume ratio of amino silicone oil and / or vinyl silicone oil to ethanol in the silicone oil reagent may be 1:1 to 1:10. Optionally, the volume ratio of amino silicone oil and / or vinyl silicone oil to ethanol may be 1:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10 or a range of any two of the above values.

[0047] Furthermore, the silicone oil reagent may also include a catalyst to catalyze the polymerization of amino silicone oil and / or vinyl silicone oil to form a protective film.

[0048] According to embodiments of this invention, the low-adsorption membrane has a unit area mass of 0.5~5.0 g / m² based on silicon. 2 For example, the protective film's mass per unit area, calculated based on silicon, can be 0.5 g / m². 2 0.7g / m 2 1.0g / m 2 1.3g / m 2 1.5g / m 2 2.0g / m 2 2.5g / m 2 2.7g / m 2 3.0g / m 2 3.5g / m 2 4.0g / m 2 4.5g / m 2 5.0g / m 2 Or it can be a range consisting of any two of the above values. A suitable mass per unit area can make the low-adsorption section 1 have both low adsorption performance and cost.

[0049] According to an embodiment of the present invention, the in-situ polymerization temperature is 80℃~180℃. Exemplarily, the in-situ polymerization temperature can be 80℃, 90℃, 100℃, 110℃, 120℃, 130℃, 140℃, 150℃, 160℃, 170℃, 180℃, or a range of any two of the above values.

[0050] According to an embodiment of this utility model, the paper base may have an embossed surface, and the width of the embossing can be 3-5 mm. Exemplarily, the width of the embossing can be 3 mm, 3.3 mm, 3.5 mm, 3.7 mm, 4.0 mm, 4.5 mm, 4.7 mm, 5.0 mm, or a range consisting of any two of the above values. The embossing on the surface of the paper base allows smoke and fumes to flow out more quickly and smoothly from the low-adsorption section 1, further reducing the retention of smoke and fumes by the low-adsorption section 1.

[0051] According to embodiments of this invention, the basis weight of the paper base is 20~100 g / m³. 2 Optionally, the basis weight of the paper base can be 25~50 g / m³. 2 For example, the basis weight of the paper base can be 20 g / m³. 2 25g / m 2 30g / m 2 35g / m 2 40g / m 2 45g / m 2 50g / m 2 55g / m 2 60g / m 2 70g / m 2 80g / m 2 90g / m 2 100g / m 2 Or it can be a range consisting of any two of the above values.

[0052] According to embodiments of this invention, the paper base can be either a white cellulose paper base or a natural-colored cellulose paper base. The white cellulose paper base can be prepared using conventional methods: the paper base is produced from white pulp, which is a commercially available pulp, and the basis weight of the paper base can be 20~100 g / m³. 2 Preferably, it can be 25~50g / m 2 Unbleached cellulose paper base is prepared using conventional methods: it is produced from unbleached pulp, which is readily available commercial pulp—yellow wood pulp that has not undergone bleaching; no fillers are added during the paper base production process; the basis weight of the paper base can range from 10 to 60 g / m³. 2 Preferably, it can be 20~40g / m 2 .

[0053] According to an embodiment of this utility model, the length of the low-adsorption section 1 can be 5~10mm, and optionally, the length of the low-adsorption section 1 can be 6~8mm. Exemplarily, the length of the low-adsorption section 1 can be 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, or a range consisting of any two of the above values.

[0054] According to embodiments of the present invention, such as Figure 2 As shown, the low-adsorption nozzle also includes a functional section 2, which may include one or more of a support end, a cooling section, and a fragrance-enhancing section. The cooling section may include at least one of a cellulose acetate hollow filter rod and a paper-based filter rod. For example, the cooling section may include a cellulose acetate hollow filter rod, or it may also include a paper-based filter rod, or it may consist of both a cellulose acetate hollow filter rod and a paper-based filter rod; that is, the cooling section may also be a composite of a cellulose acetate hollow filter rod and a paper-based filter rod.

[0055] According to an embodiment of the present invention, the length of the cooling section can be 10~40mm, and optionally, the length of the support section 2 can be 16~30mm.

[0056] The paper base used in the paper-based filter rod can be at least one of cellulose paper, tallow paper, forming paper, and tracing paper. One or both sides of the paper base can be coated with at least one of cooling material and fragrance material. For example, the cooling material can include polyethylene glycol, and the fragrance material can include ethyl acetate, vanillin, and other fragrances. The paper-based filter rod can have a plurality of holes penetrating both ends, and the area of ​​the plurality of holes penetrating both ends can account for 20% to 30% of the end area of ​​the paper-based filter rod.

[0057] The cellulose acetate hollow filter rod has a ring of micropores evenly distributed along its circumference. The shape of the micropores can be any regular or irregular shape, such as circular, triangular, square, rectangular, or hexagonal. The size of the micropores can be 0.1~0.3mm. Optionally, the size of the micropores can be 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, or a range of any two of the above values. The number of micropores can be 5~30. For example, the micropores can be circular, with a diameter of 0.1~0.3mm, and a number of 5~30. By evenly distributing a ring of micropores along the circumference of the cellulose acetate hollow filter rod, the ventilation effect of the filter rod can be increased, facilitating the introduction of outside air when smoking heated cigarettes to achieve the effect of lowering the temperature of the cigarette smoke.

[0058] It should be noted that when the outer side of the cellulose acetate hollow filter rod is wrapped with forming paper and tipping paper, the forming paper and tipping paper can also be provided with micropores at the corresponding positions of the micropores in the cellulose acetate hollow filter rod, so as to increase the effect of the cooling section in reducing the temperature of cigarette smoke.

[0059] According to an embodiment of this utility model, the low-adsorption nozzle rod can be a round rod with a circumference of 17~24.2mm. For example, the circumference of the low-adsorption nozzle rod can be 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 24.2mm or a range of any two of the above values.

[0060] According to embodiments of the present invention, such asFigure 2 As shown, the low-adsorption nozzle also includes an outer forming paper 4, which wraps around the outside of the low-adsorption section 1 and the functional section 2.

[0061] Another embodiment of this utility model provides a method for preparing the above-mentioned low-adsorption nozzle bar, comprising the following steps: in-situ polymerization of silicone oil reagent on the surface of a paper base to obtain a low-adsorption paper base; and feeding the low-adsorption paper base into a molding machine to form a low-adsorption nozzle bar. The silicone oil reagent includes at least one of amino silicone oil or vinyl silicone oil.

[0062] Another embodiment of this utility model also provides a heated cigarette, such as Figure 3 As shown, the heated cigarette includes a low-absorption mouthpiece, which includes a low-absorption section 1. The low-absorption section 1 is formed by wrapping a low-absorption paper base 11 with a forming paper 12. The low-absorption paper base 11 includes a paper base and a low-absorption film. The low-absorption film is formed by in-situ polymerization of a silicone oil reagent on the surface of the paper base. The silicone oil reagent includes at least one of amino silicone oil or vinyl silicone oil. The cigarette-generating section 3 is configured to be at least one of tobacco sheet or tobacco shreds wrapped in cigarette paper.

[0063] According to embodiments of this disclosure, such as Figure 3 As shown, the heated cigarette also includes tipping paper 5, and the functional section 2, the low-absorption section 1 and the smoke-generating section 3 can be connected by tipping paper 5.

[0064] According to an embodiment of the present invention, the length of the smoke-generating section 3 can be 10~40mm, optionally 10~30mm, further optionally 10~15mm, and even more preferably 10~12mm.

[0065] Another embodiment of this utility model provides a heated non-combustible tobacco product, including a heated cigarette, characterized in that the heated cigarette includes a low-adsorption mouthpiece, the low-adsorption mouthpiece includes a low-adsorption section, the low-adsorption section is formed by wrapping a low-adsorption paper base with a forming paper, the low-adsorption paper base includes a paper base and a low-adsorption film, the low-adsorption film is formed by in-situ polymerization of a silicone oil reagent on the surface of the paper base, the silicone oil reagent includes at least one of amino silicone oil or vinyl silicone oil.

[0066] According to embodiments of the present invention, heated non-combustible tobacco products may further include heated smoking devices, which may be centrally heated smoking devices or circumferentially heated smoking devices.

[0067] The present invention will be described in detail below with reference to specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0068] Example 1

[0069] This embodiment provides a heated cigarette including a low-adsorption mouthpiece and a method for preparing the same.

[0070] The low-adsorption nozzle rod includes a low-adsorption section, which comprises a forming paper and a low-adsorption paper base encased within the forming paper. The low-adsorption paper base includes a paper base and a low-adsorption membrane. The low-adsorption membrane is formed by in-situ polymerization of a silicone oil reagent on the surface of the paper base. The silicone oil reagent includes amino silicone oil. The width of the paper base is 17 cm, the width of the embossing is 3 mm, and the unit area mass of the low-adsorption membrane, calculated based on silicon, is 5.0 g / m³. 2 The in-situ polymerization temperature is 120℃.

[0071] This embodiment combines a low-adsorption section, a functional section, and a smoke-generating section to prepare a heated cigarette.

[0072] Specifically, a quantitative amount of 50 g / m 2 Amino silicone oil reagent is loaded onto a white paper substrate. The ratio of amino silicone oil to ethanol is 1:5. The amino silicone oil is coated on both sides of the cellulose paper substrate at a coating weight of 5 g / m². 2 The amino silicone oil used was Dow Corning OFX-8417 with a molecular weight of 2000. After in-situ polymerization, a low-absorption paper base was obtained. The low-absorption paper base was cut into 17cm wide pieces, embossed using filter rods, and then weighed at 30g / m³ with an air permeability of 50CU. 2 The forming paper is wrapped with a 7mm long low-absorption section base rod, and then combined with a 26mm long cellulose acetate hollow tube cooling section base rod. The mixture is then laminated using a laminating machine with an air permeability of 50CU and a basis weight of 30g / m³. 2 The forming paper is shaped into a 132mm long low-absorption filter rod (cut into four pieces, each cigarette filter rod is 33mm long). Ordered thin sheet tobacco is used with an air permeability of 50CU and a basis weight of 30g / m³. 2 Ordinary cigarette paper is wrapped into 12mm long tobacco segments. Then, using a cigarette rolling machine, the composite filter rod end and the smoke-generating segment are punched together with water-pressed paper to prepare a heated cigarette stick with a circumference of 22.6mm and a length of 45mm. A ring of holes with a diameter of 0.2mm is punched around the hollow acetate tube segment of the heated cigarette stick, and the number of holes is 15.

[0073] Example 2

[0074] This embodiment provides a heated cigarette including a low-adsorption mouthpiece and a method for preparing the same.

[0075] The low-adsorption nozzle rod includes a low-adsorption section, which comprises a forming paper and a low-adsorption paper base wrapped within the forming paper. The low-adsorption paper base includes a paper base and a low-adsorption membrane. The low-adsorption membrane is formed by in-situ polymerization of a silicone oil reagent on the surface of the paper base. The silicone oil reagent includes vinyl silicone oil. The width of the paper base is 20 cm, the width of the embossing is 5 mm, and the unit area mass of the low-adsorption membrane, calculated based on silicon, is 5.0 g / m³. 2 The in-situ polymerization temperature is 120℃.

[0076] This embodiment combines a low-adsorption section, a functional section, and a smoke-generating section to prepare a heated cigarette.

[0077] Specifically, a quantitative amount of 40 g / m 2 The modified vinyl silicone oil reagent is loaded onto a natural-colored paper base. The ratio of modified vinyl silicone oil to ethanol is 1:1. The silicone oil reagent, including the vinyl silicone oil, is coated on both sides of the cellulose paper base at a coating weight of 5 g / m². 2 After in-situ polymerization, a low-adsorption paper base was obtained. The low-adsorption paper base was cut into 20cm wide pieces, embossed using filter rods, and then weighed at 30g / m³ with an air permeability of 50CU. 2 The forming paper is wrapped with a 7mm long low-absorption section base rod, and then with a 26mm long paper wall hollow tube cooling section base rod. After being laminated by a laminator, the paper has a permeability of 50CU and a basis weight of 30g / m³. 2 The forming paper is shaped into a 132mm long low-absorption filter rod (cut into four pieces, each cigarette filter rod is 33mm long). Ordered thin tobacco sheets are made with aluminized cigarette paper (basis weight 40g / m³). 2 The tobacco is wrapped into 12mm long segments, and then the composite filter rod end and the smoke-generating segment are joined together with water-tipped paper using a cigarette rolling machine to produce a heated cigarette stick with a circumference of 22.6mm and a length of 45mm.

[0078] Example 3

[0079] This embodiment provides a heated cigarette including a low-adsorption filter rod and its preparation method. Referring to Embodiment 1, the difference is that in this embodiment, the coating amount of amino silicone oil on cellulose paper is 3 g / m². 2 The amino silicone oil is Dow Corning OFX-8600 with a molecular weight of 2600.

[0080] Example 4

[0081] This embodiment provides a heated cigarette including a low-adsorption filter rod and its preparation method. Referring to Embodiment 2, the difference is that in this embodiment, the coating amount of silicone oil reagent on cellulose paper is 0.5 g / m². 2 .

[0082] Example 5

[0083] This embodiment provides a heated cigarette including a low-adsorption filter rod and its preparation method. Referring to Embodiment 1, the difference is that in this embodiment, the coating amount of the white paper-based amino silicone oil used in the low-adsorption section is 0.3 g / m². 2 .

[0084] Example 6

[0085] This embodiment provides a heated cigarette including a low-adsorption filter rod and its preparation method. Referring to Embodiment 2, the difference is that in this embodiment, the coating amount of modified vinyl silicone oil on the unbleached paper base in the low-adsorption section is 0.1 g / m². 2 .

[0086] Example 7

[0087] This embodiment provides a heated cigarette including a low-adsorption mouthpiece and its preparation method. Referring to Embodiment 1, the difference from Embodiment 1 is that the width of the paper base in this embodiment is 8cm.

[0088] Example 8

[0089] This embodiment provides a heated cigarette including a low-adsorption mouthpiece and its preparation method. Referring to Embodiment 1, the difference from Embodiment 1 is that the width of the paper base in this embodiment is 25cm.

[0090] Example 9

[0091] This embodiment provides a heated cigarette including a low-adsorption mouthpiece and its preparation method. Referring to Embodiment 1, the difference from Embodiment 1 is that the width of the paper base in this embodiment is 30cm.

[0092] Example 10

[0093] This embodiment provides a heated cigarette including a low-adsorption mouthpiece and its preparation method. Referring to Embodiment 1, the difference from Embodiment 1 is that the surface of the paper base in this embodiment does not have embossing.

[0094] Comparative Example 1

[0095] This comparative example provides a heated cigarette and its preparation method. Referring to Example 1, the difference from Example 1 is that in this comparative example, the adsorption section is made of ordinary cellulose acetate.

[0096] Comparative Example 2

[0097] This comparative example provides a heated cigarette and its preparation method. Referring to Example 1, the difference from Example 1 is that the filter rod used in this comparative example includes a paper base segment, which includes a forming paper and a paper base wrapped in the forming paper. The paper base does not include a low-adsorption membrane.

[0098] The heated cigarettes provided in the above embodiments and comparative examples were tested in existing commercially available center heating devices. Each filter collected smoke from four heated cigarettes. The smoking conditions were: 18 seconds of device preheating, 2 seconds of puffing per breath, 28-second intervals, and a puff volume of 55 ml per breath. The content of atomizing agent, nicotine, and moisture in the extracted smoke was analyzed, and the average values ​​were calculated. See Table 1 for details.

[0099] Table 1

[0100]

[0101] As can be seen from Table 1, compared with the comparative example, the heated cigarette with low adsorption nozzle provided by this utility model embodiment has a low amount of smoke and smoke retention, and the smoke and smoke flow out quickly and smoothly from the low adsorption section, with sufficient smoke volume, which improves the satisfaction and experience of smoking.

[0102] Furthermore, according to Table 1, the analysis of Examples 1 and 5, Examples 2 and 6 shows that as the amount of silicone oil reagent coated on the paper base decreases, the adsorption effect of the paper base on the smoke increases, and the release of atomizing agent (glycerol) and moisture in the smoke gradually decreases, which is reflected in the reduction of smoke volume during inhalation and the weakening of satisfaction.

[0103] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A low-absorption mouthpiece for heating cigarettes, characterized in that, The low-adsorption nozzle includes a low-adsorption section, which includes a forming paper and a low-adsorption paper base wrapped within the forming paper. The low-adsorption paper base includes a paper base and a low-adsorption membrane. The low-adsorption membrane is formed by in-situ polymerization of a silicone oil reagent on the surface of the paper base. The silicone oil reagent includes at least one of amino silicone oil and vinyl silicone oil.

2. The low-adsorption nozzle rod according to claim 1, characterized in that, The low-adsorption section has several holes that extend through both ends, and the area of ​​the several holes extending through both ends accounts for 20% to 30% of the end area of ​​the low-adsorption nozzle rod.

3. The low-adsorption nozzle rod according to claim 1, characterized in that, The length of the low-adsorption paper base is equal to the length of the low-adsorption section, and the width of the paper base is 8~25cm.

4. The low-adsorption nozzle rod according to claim 1, characterized in that, The surface of the paper base has embossing, and the width of the embossing is 3~5mm.

5. The low-adsorption nozzle rod according to claim 1, characterized in that, The low-adsorption membrane has a unit area mass of 0.5~5.0 g / m³ based on silicon. 2 .

6. The low-adsorption nozzle rod according to claim 1, characterized in that, The in-situ polymerization temperature is 80℃~180℃.

7. The low-adsorption nozzle rod according to any one of claims 1 to 6, characterized in that, The basis weight of the paper base is 20~100 g / m³. 2 .

8. The low-adsorption nozzle rod according to any one of claims 1 to 6, characterized in that, The length of the low-adsorption section is 5~10mm.

9. The low-adsorption nozzle rod according to any one of claims 1 to 6, characterized in that, The low-adsorption nozzle also includes a functional section, which includes one or more of a support end, a cooling section, and a fragrance-adding section. The low-adsorption nozzle also includes an outer forming paper, which wraps around the outside of the low-adsorption section and the functional section.

10. A heated cigarette, characterized in that, The heated cigarette includes: A low-adsorption nozzle rod, the low-adsorption nozzle rod comprising a low-adsorption section, the low-adsorption section being formed by wrapping a low-adsorption paper base with molded paper, the low-adsorption paper base comprising a paper base and a low-adsorption membrane, the low-adsorption membrane being formed by in-situ polymerization of a silicone oil reagent on the surface of the paper base, the silicone oil reagent comprising at least one of amino silicone oil or vinyl silicone oil; and The smoke-generating section is constructed by wrapping a smoke-generating medium in cigarette paper, and the smoke-generating medium is a medium that can release aerosols when heated.

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