TW202116195A - A cooling element - Google Patents

Abstract

The present invention provides a cooling element comprising a longitudinally extending core including a plurality of longitudinally extending bores wherein each bore has a diameter ≥ 0.8 mm.

Description

Cooling element

The present invention provides a cooling element for use with smoking articles (e.g., tobacco heating products or heat-not-burn products).

Tobacco heating products or heat not burn (HNB) products are well known. The idea of a tobacco heating product is to heat tobacco to a specific temperature (for example, 350°C) without burning. This will deliver nicotine-containing vapor, but it is believed that heating without burning can avoid the production of combustion products that are harmful to consumers.

Tobacco heating products (HNB products) may include modified tobacco blocks and other mouthpiece elements wrapped in paper plugwrap to provide a cigarette-like appearance. In one such product, reconstituted tobacco blocks, rolled hollow acetate tubes, rolled PLA [poly(lactic acid)] blocks, and traditional rolled acetate segments are rolled in white paper. The product can then be inserted into the heating element that heats the tobacco, so that the consumer can "puff" the product. The function of the "filter" in these products is completely different from that of a cigarette filter; the main function is to provide the look and feel of cigarettes, and also to cool the smoke to a temperature acceptable to consumers. Among the above products, the PLA segment performs an important cooling function, so it can be regarded as a cooling element.

The PLA segment has shortcomings in terms of usability, manufacturing capability, filtration characteristics (especially phenol-related characteristics), feel, fastness, biodegradability, and appearance. In terms of its ability to cool smoke to an acceptable or predictable level, previous cooling elements may also have disadvantages. Therefore, there is a need for a cooling element that provides acceptable cooling of vapor in HNB products without the disadvantages seen when using PLA for cooling elements. It is also desirable to provide cooling elements with consistent and/or predictable cooling effects to provide the required temperature reduction.

According to a first aspect of the present invention, there is provided a cooling element (for example, a cooling element for tobacco heating products and/or HNB products), which includes a longitudinally extending (e.g., cylindrical) core, and the longitudinally extending core includes a plurality of longitudinally extending cores. Extended holes, wherein the diameter of each hole is ≥ 0.8 mm (that is, the diameter is greater than or equal to 0.8 mm).

The applicant has discovered that a cooling element including a plurality of holes and other components of the HNB cigarette holder (e.g., other discrete sections) together can provide an adequate degree of cooling of the vapor. The applicant has found that by changing the size, shape and configuration of the holes, they can better control the airflow in the HNB product, and therefore can adjust the cooling effect to provide the required temperature reduction.

Preferably, the diameter of each hole is 0.8 mm to 2.5 mm. Preferably, the diameter of each hole is 1.5mm to 2.5mm. The applicant has discovered that holes with these diameters can provide the best cooling characteristics. It is understood that the cooling element may include a plurality of holes with different diameters. The cooling element may include two to twelve holes. Preferably, the cooling element includes two to six holes. Preferably, the cooling element includes two, three, four, five or six holes. Preferably, the cooling element includes four to six holes. Preferably, the cooling element includes three, four or five holes. The applicant has discovered that cooling elements comprising three, four or five holes can provide optimal cooling of the vapor.

It is understood that the term "hole" as used herein means a pipe or enclosed channel extending longitudinally through the core, which is surrounded by the core (but may be open at one or both ends of the core). The cross-section of each hole can be any shape (that is, the hole does not have to be circular).

For circular holes, the term "diameter" has its usual meaning. It can be understood that for non-circular holes, the term "diameter" means the length of the line from one side of the hole through the center of the hole to the other side of the hole at the widest position of the hole. Preferably, the holes (or each hole) have a uniform axial cross-section.

According to the present invention, in one aspect, a cooling element (for example, a cooling element for tobacco heating products and/or HNB products) is provided, which includes a longitudinally extending (for example, cylindrical) core, and the longitudinally extending core includes three Longitudinal extending holes, wherein the diameter of each hole is ≥ 0.8 mm (that is, the diameter is greater than or equal to 0.8 mm). Preferably, the diameter of each hole is 0.8 mm to 2.5 mm. Preferably, the diameter of each hole is 1.5mm to 2.5mm.

According to the present invention, in one aspect, a cooling element (for example, a cooling element for tobacco heating products and/or HNB products) is provided, which includes a longitudinally extending (for example, cylindrical) core, and the longitudinally extending core includes four Longitudinal extending holes, wherein the diameter of each hole is ≥ 0.8 mm (that is, the diameter is greater than or equal to 0.8 mm). Preferably, the diameter of each hole is 0.8 mm to 2.5 mm. Preferably, the diameter of each hole is 1.5mm to 2.5mm.

According to the present invention, in one aspect, a cooling element (for example, a cooling element for tobacco heating products and/or HNB products) is provided, which includes a longitudinally extending (for example, cylindrical) core, and the longitudinally extending core includes five Longitudinal extending holes, wherein the diameter of each hole is ≥ 0.8 mm (that is, the diameter is greater than or equal to 0.8 mm). Preferably, the diameter of each hole is 0.8 mm to 2.5 mm. Preferably, the diameter of each hole is 1.5mm to 2.5mm.

The cooling element may be made of natural or synthetic filamentary tow such as cotton or plastic (for example, polyethylene or polypropylene) or cellulose acetate filamentary tow. The filter material may be a thermoplastic polymer or other woven polymers, for example, polypropylene, polyethylene terephthalate or polylactide.

Preferably, the cooling element is made of cellulose acetate. Preferably, the cooling element is thermoformed from cellulose acetate. The cellulose acetate may further contain a plasticizer (for example, triacetin, triethyleneglycol diacetate, TEGDA), polyethylene glycol (PEG) or other plasticizers. A mixture of plasticizers or plasticizers). If present, the plasticizer (eg, triacetin) can be applied to the cellulose acetate material in an amount of 15% to 21.5% (preferably 15% to 19%) of the total weight of the cellulose acetate material . The applicant has discovered that the cellulose acetate cooling element and other components of the mouthpiece (e.g., other discrete segments) together can provide adequate cooling while providing a consumer-satisfactory look and feel (e.g., including mouthfeel). This is particularly surprising given that it is generally believed that the cellulose acetate section cannot perform effective cooling. The applicant has discovered that, compared with traditional cooling elements, by using traditional tobacco filter materials (e.g., thermoformed cellulose acetate) to produce the cooling elements of the present invention, the cooling elements can provide improved sensory properties (e.g., Taste and feel) and reduced manufacturing costs.

Preferably, the length of the cooling element is 5 to 50 mm, for example, 10 to 30 mm, for example, 8 to 24 mm, for example, 15 to 20 mm, for example, 18 mm.

Preferably, the circumference of the cooling element is 12 to 30 mm, for example, 15 to 28 mm, more preferably, 17 to 25 mm, for example, 18 to 25 mm, for example, 20 to 24 mm, for example, 22 to 24 mm, for example, 23 mm, For example, 22mm.

Preferably, the longitudinally extending core (for example, made of cellulose acetate material) has a uniform axial cross-section.

Preferably, each hole has a substantially circular cross-section. Alternatively, the cross-section of each hole can have a different shape [circular, semi-circular (D-shaped), square, triangular, hollow star, trilobal, pentagonal or tooth-shaped cross-section or logo or other patterned cross-section ]. The cooling element according to the present invention may include a plurality of holes with different cross-sections. For example, the cooling element includes a hole with a circular cross-section and a hole with a square cross-section. This can be seen in Figure 3 for example.

Preferably, the cooling element has a substantially circular cross-section, which means that the shape of the cooling element is substantially cylindrical. However, the cooling element of the present invention may have any shape. For example, the cooling element may have an elliptical cross-section or a square cross-section or a rectangular cross-section.

Preferably, each hole extends longitudinally up to the entire length of the core.

The cooling element may further include an outer packaging material joined around the longitudinally extending core. The outer packaging material may be paper (for example, roll paper), preferably, paper with a basis weight of 20 to 160 gsm (for example, roll paper), for example, paper with a basis weight of 24 to 150 gsm (for example, roll paper), for example , Paper with a basis weight of 70 to 150 gsm (e.g., roll paper), for example, paper with a basis weight of 70 to 140 gsm (e.g., roll paper).

According to the present invention, there is provided a method of manufacturing a cooling element (for example, a cooling element for tobacco heating products and/or HNB products), which includes the following steps: making a material to which a plasticizer has been applied (for example, cellulose acetate) By (for example, pulling) a forming means (for example, a fixed die (fix die)), the material is heat-treated at the same time to form a longitudinally extending core containing a plurality of longitudinally extending holes, wherein the diameter of each hole is ≥0.8mm (that is, , The diameter is greater than or equal to 0.8mm). Preferably, the forming means includes at least one protruding inner rod (mandrel), the protruding inner rod includes a plurality of pins, and the cross-sectional profile of each pin is equal to the cross-section of the longitudinally extending hole.

The cooling element (for example, the cooling element used for tobacco heating products and/or HNB products) can be obtained by pulling a continuous bundle of cellulose acetate (optionally, already applied with a plasticizer (for example, triacetin) Manufactured by a fixed mold, where the outer diameter of the fixed mold is approximately equal to the desired outer diameter of the cooling element to be produced. The plasticizer (for example, triacetin) can be 15% to 21.5% of the total weight of the cellulose acetate material (Preferably, 15% to 19%) is applied to the cellulose acetate material. The fixed mold includes some protruding inner rods (for example, a mandrel) extending through the fixed mold. The mandrel size (for example, diameter) may be 0.8mm to 4.2mm. The mandrel will have a circular cross-section consisting of pins with a diameter of 0.8 to 4.2mm (depending on the size of the hole required (for example, diameter)). When pulling the cellulose acetate through the mold When it passes around the mandrel (thus around the pin), so that when leaving the mold, a cooling element with multiple holes is formed. The cross-sectional profile of these holes is equivalent to the number and size of the pins used in the mandrel. Profile profile. When the cellulose acetate is in the mold, heated steam (such as superheated steam known in the art) can be applied to the cellulose acetate. The heated steam can be applied through a duct in the mold. Heated steam The plasticizer applied to the cellulose acetate is cured to allow the cooling element to maintain the shape of the mold after leaving the mold. Preferably, the method includes the following steps: after forming a longitudinally extending core including a plurality of longitudinally extending holes, Expose the cellulose acetate to cooling air, where the diameter of each hole is ≥0.8mm (that is, the diameter is greater than or equal to 0.8mm). Preferably, the temperature of the cooling air is 20°C to 26°C, more preferably, the cooling The temperature of the air is 22°C to 25°C, for example, 22°C to 24.5°C. Preferably, the method includes extending the residence time in the cooling air (for example, providing four or more cooling elements through which Air box) The residence time in the cooling air can be 0.12 to 0.14 seconds, for example, 0.13 seconds.

According to the present invention, a cooling element for tobacco heating products and/or HNB products is provided, which includes a longitudinally extending core, and the longitudinally extending core includes two to twelve longitudinally extending holes.

According to the present invention, a cooling element for tobacco heating products and/or HNB products is provided, which includes a longitudinally extending core, and the longitudinally extending core includes a plurality of longitudinally extending holes, wherein the diameter of each hole is ≥0.8 mm.

According to the present invention, there is provided a smoking article (for example, tobacco heating product, HNB product), which includes a cooling element as described herein and claimed below. It should be understood that smoking articles (e.g., tobacco heating products, HNB products) may include more than one other discrete segments. Other discrete segments may be (e.g., cylindrical) pieces of tobacco smoke filter material. Preferably, the other discrete segments are made of cellulose acetate tow.

It is understood that the cooling element can be used in any multi-segment filter or consumable. The structure of the filter can be two, three, four or more discrete segments. The filter can be attached to the tobacco rod (the tobacco rod can be made from any form of shredded tobacco (including reconstituted tobacco)). The filter may include other segments including capsules, carbon, CPS, tubes, cellulose acetate, paper, menthol, and the like.

According to the present invention, a tobacco heating product and/or HNB product is provided, which includes a cooling element, the cooling element includes a longitudinally extending core, and the longitudinally extending core includes a plurality of longitudinally extending holes, wherein the diameter of each hole is greater than or equal to 0.8 mm.

According to the present invention, a tobacco heating product and/or HNB product is provided, which includes a cooling element, the cooling element includes a longitudinally extending core, and the longitudinally extending core includes two to twelve longitudinally extending holes.

Preferably, the tobacco heating product and/or HNB product according to the present invention further includes one or more other discrete segments. Other discrete segments may be (e.g., cylindrical) pieces of tobacco smoke filter material. Preferably, the other discrete segments are made of cellulose acetate tow.

The applicant has discovered that a cooling element including a plurality of holes and other components of the HNB cigarette holder (for example, other discrete sections) can together provide a suitable degree of cooling of the vapor in the tobacco heating product and/or the HNB product. The applicant has found that by changing the size, shape and configuration of the holes, they can better control the airflow in the tobacco heating product and/or HNB product, and therefore can adjust the cooling effect to provide the required temperature reduction.

Preferably, the diameter of each hole of the cooling element is 0.8 mm to 2.5 mm. Preferably, the diameter of each hole is 1.5mm to 2.5mm. The applicant has discovered that holes with these diameters can provide the best cooling characteristics. It is understood that the cooling element may include a plurality of holes with different diameters. The cooling element may include two to twelve holes. Preferably, the cooling element includes two to six holes. Preferably, the cooling element includes two, three, four, five or six holes. Preferably, the cooling element includes four to six holes. Preferably, the cooling element includes three, four or five holes. The applicant has discovered that cooling elements comprising three, four or five holes can provide optimal cooling of vapors in tobacco heating products and/or HNB products.

Preferably, the cooling element is made of cellulose acetate. Preferably, the cooling element is thermoformed from cellulose acetate. The cellulose acetate may further contain a plasticizer (for example, triacetin, triethylene glycol diacetate (TEGDA), polyethylene glycol (PEG), or other plasticizers or mixtures of plasticizers). If present, the plasticizer (eg, triacetin) can be applied to the cellulose acetate material in an amount of 15% to 21.5% (preferably 15% to 19%) of the total weight of the cellulose acetate material . The applicant has discovered that the cellulose acetate cooling element and other components of the cigarette holder can provide adequate cooling in tobacco heating products and/or HNB products, while providing consumers with a satisfactory look and feel (e.g., mouthfeel). This is particularly surprising given that it is generally believed that the cellulose acetate section cannot perform effective cooling.

Preferably, the length of the cooling element is 5 to 50 mm, for example, 10 to 30 mm, for example, 8 to 24 mm, for example, 15 to 20 mm, for example, 18 mm.

Preferably, the circumference of the cooling element is 12 to 30 mm, for example, 15 to 28 mm, more preferably, 17 to 25 mm, for example, 18 to 25 mm, for example, 20 to 24 mm, for example, 22 to 24 mm, for example, 23 mm, For example, 22mm.

The cross-section of each hole of the cooling element can be any shape. Preferably, each hole has a substantially circular cross-section. Alternatively, the cross-section of each hole can have a different shape [circular, semi-circular (D-shaped), square, triangular, hollow star, trilobal, pentagonal or tooth-shaped cross-section or logo or other patterned cross-section ]. The cooling element according to the present invention may include a plurality of holes with different cross-sections. For example, the cooling element includes a hole with a circular cross-section and a hole with a square cross-section. This can be seen in Figure 3 for example.

Preferably, the cooling element has a substantially circular cross-section, which means that the shape of the cooling element is substantially cylindrical. However, the cooling element of the present invention may have any shape. For example, the cooling element may have an elliptical cross-section or a square cross-section or a rectangular cross-section.

Preferably, each hole of the cooling element extends longitudinally up to the entire length of the core.

According to the present invention, in another aspect, there is provided a use of a cooling element in a tobacco heating product and/or HNB product. The cooling element includes a longitudinally extending core, and the longitudinally extending core includes a plurality of longitudinally extending holes. Diameter ≥0.8mm.

According to the present invention, in another aspect, there is provided a use of a cooling element in a tobacco heating product and/or HNB product. The cooling element includes a longitudinally extending core, and the longitudinally extending core includes two to twelve longitudinally extending holes.

Preferably, the tobacco heating product and/or HNB product according to the present invention further includes one or more other discrete segments. Other discrete segments may be (e.g., cylindrical) pieces of tobacco smoke filter material. Preferably, the other discrete segments are made of cellulose acetate tow.

The applicant has discovered that a cooling element including a plurality of holes and other components of the HNB cigarette holder (for example, other discrete sections) can together provide a suitable degree of cooling of the vapor in the tobacco heating product and/or the HNB product. The applicant has found that by changing the size, shape and configuration of the holes, they can better control the airflow in the tobacco heating product and/or HNB product, and therefore can adjust the cooling effect to provide the required temperature reduction.

Preferably, the diameter of each hole of the cooling element is 0.8 mm to 2.5 mm. Preferably, the diameter of each hole is 1.5mm to 2.5mm. The applicant has discovered that holes with these diameters can provide the best cooling characteristics. It is understood that the cooling element may include a plurality of holes with different diameters. The cooling element may include two to twelve holes. Preferably, the cooling element includes two to six holes. Preferably, the cooling element includes two, three, four, five or six holes. Preferably, the cooling element includes three, four or five holes. Preferably, the cooling element includes four to six holes. The applicant has discovered that cooling elements comprising three, four or five holes can provide optimal cooling of vapors in tobacco heating products and/or HNB products.

Preferably, the cooling element is made of cellulose acetate. Preferably, the cooling element is thermoformed from cellulose acetate. The cellulose acetate may further contain a plasticizer (for example, triacetin, triethylene glycol diacetate (TEGDA), polyethylene glycol (PEG), or other plasticizers or mixtures of plasticizers). If present, the plasticizer (eg, triacetin) can be applied to the cellulose acetate material in an amount of 15% to 21.5% (preferably 15% to 19%) of the total weight of the cellulose acetate material . The applicant has discovered that the cellulose acetate cooling element and other components of the cigarette holder can provide proper cooling of steam in tobacco heating products and/or HNB products, while providing consumers with a satisfactory look and feel (for example, mouthfeel) . This is particularly surprising given that it is generally believed that the cellulose acetate section cannot perform effective cooling.

Preferably, the length of the cooling element is 5 to 50 mm, for example, 10 to 30 mm, for example, 8 to 24 mm, for example, 15 to 20 mm, for example, 18 mm.

Preferably, the circumference of the cooling element is 12 to 30 mm, for example, 15 to 28 mm, more preferably, 17 to 25 mm, for example, 18 to 25 mm, for example, 20 to 24 mm, for example, 22 to 24 mm, for example, 23 mm, For example, 22mm.

The cross-section of each hole of the cooling element can be any shape. Preferably, each hole has a substantially circular cross-section. Alternatively, the cross-section of each hole can have a different shape [circular, semi-circular (D-shaped), square, triangular, hollow star, trilobal, pentagonal or tooth-shaped cross-section or logo or other patterned cross-section ]. The cooling element according to the present invention may include a plurality of holes with different cross-sections. For example, the cooling element includes a hole with a circular cross-section and a hole with a square cross-section. This can be seen in Figure 3 for example.

Preferably, the cooling element has a substantially circular cross-section, which means that the shape of the cooling element is substantially cylindrical. However, the cooling element of the present invention may have any shape. For example, the cooling element may have an elliptical cross-section or a square cross-section or a rectangular cross-section.

Preferably, each hole of the cooling element extends longitudinally up to the entire length of the core.

FIG. 1 illustrates a schematic diagram of a cylindrical HNB product 100. The HNB product 100 includes four sections: a cylindrical block 102 of reconstituted tobacco; a cylindrical block 104 of cellulose acetate tow; a cylindrical cooling element 106 according to an embodiment of the present invention; and a cylindrical block of cellulose acetate tow The form of the cigarette holder section 108. The reconstituted tobacco block 102 has a length of 8 mm and a circumference of 22 mm, and forms one end of the HNB product 100. This is the end that plugs into the HNB device. Such reconstituted tobacco pieces are well known in the art. As is well known in the art, this reconstituted tobacco block is heated by a heating device (HNB device) in use to generate steam. One end of the reconstituted tobacco block 102 is adjacent to the cylindrical block 104 of the 18 mm long cellulose acetate tow, and the circumference of the cylindrical block 104 of the cellulose acetate tow is also 22 mm. The end of the cellulose acetate tow block 104 opposite to the reconstituted tobacco block 102 is adjacent to the cylindrical cooling element 106 according to an embodiment of the present invention.

Figure 2 shows the cooling element 106, which includes a longitudinally extending core 110 of thermoformed cellulose acetate material with a length of 18 mm and a circumference of 22 mm. The longitudinally extending core 110 includes three longitudinally extending holes 112, all of which have a circular cross-section. Each longitudinally extending hole 112 has a diameter of approximately 2 mm. The longitudinally extending hole 112 extends from the end adjacent to the cylindrical block 104 for the entire length of the longitudinally extending core 110 to the end adjacent to the mouthpiece section 108. As can be seen from FIGS. 1 and 2, the longitudinally extending holes 112 are arranged in a substantially triangular configuration in the longitudinally extending core 110. The cooling element 106 has a uniform axial profile. The manufacture of the cooling element 106 will be discussed below.

The mouthpiece section 108 has a length of 7 mm, a circumference of 22 mm, and includes a cylindrical block of cellulose acetate tow. The mouthpiece section 108 abuts the end of the cooling element 106 opposite to the cylindrical block 104 of the cellulose acetate tow, so that the cooling element 106 is positioned between the mouthpiece section 108 and the cylindrical block 104.

The cylindrical block 102 of the reconstituted tobacco, the cylindrical block 104 of the cellulose acetate tow, the cylindrical cooling element 106 and the cigarette holder section 108 in the form of the cylindrical block of the cellulose acetate tow are further used in traditional roll paper (in this art It is known) to roll paper (not shown) to wind up. This provides an appearance similar to traditional cigarettes.

During use, the cylindrical block 102 of the reconstituted tobacco of the HNB product 100 is inserted into the HNB device. The HNB device heats the reconstituted tobacco in the conventional manner of an HNB device. This generates hot steam, which is first drawn through the cellulose acetate tow block 104, then through the cooling element 106, and then finally through the mouthpiece section 108 to the mouth of the smoker. It is believed that the inhalation of hot steam through the three holes in the cooling element 106 can cool the steam to a temperature acceptable to the user. The applicant has discovered that the use of three holes in a triangular configuration provides a particularly effective degree of cooling. Furthermore, such cooling effects are generally not expected to come from the cellulose acetate material.

The thermoformed cellulose acetate cooling element 106 is produced by the method according to the present invention. Pull a bunch of continuous cellulose acetate filamentary tows containing triacetin plasticizer (plasticizer accounts for approximately about the total weight of the filamentous tow and triacetin plasticizer 18%) passed the fixed mold. When pulled through the fixed mold, the cellulose acetate filament material is heat treated to form a longitudinally extending core of thermoformed cellulose acetate material. The fixed mold includes an inner rod (mandrel) extending through the fixed mold. The mandrel consists of three pins with a circular cross-section and a diameter of 2 mm. When the cellulose acetate material is pulled through the fixed mold, it passes around the pin of the mandrel, so that when leaving the mold, a cooling element 106 with three holes 112 with a diameter of 2 mm is formed, and the three holes 112 extend longitudinally through The cellulose acetate material core 110 is overheated. When the cellulose acetate is in the mold, superheated steam is applied to the cellulose acetate through a duct in the mold. The heated steam solidifies the triacetin plasticizer, thereby allowing the cooling element 106 to maintain its shape after leaving the mold. After the cellulose acetate cooling element 106 is formed for an extended period of time (13 seconds), it is exposed to cooling air at a temperature of 22 to 25°C.

It is understandable that by adjusting the shape and size of the pin, the shape and size of the hole can be adjusted. Figure 3 illustrates an example of possible shapes of holes that can be produced by this manufacturing method. [Example]

The cooling element A of the present invention is manufactured according to the method of the present invention. The cooling element A comprises a longitudinally extending core of thermoformed cellulose acetate material with a length of 18 mm and a circumference of 22 mm. The longitudinally extending core includes four longitudinally extending holes, all of which have a circular cross-section. The diameter of each longitudinally extending hole is between 1.5mm and 1.6mm. The longitudinally extending hole extends to the entire length of the longitudinally extending core.

The cooling element A was tested against a conventional tubular cooling element of three different materials containing a single hole (B, C, and D). The cooling elements are tested in three different traditional HNB products (for example, heatsticks), and each HNB product contains traditional cooling elements B, C, or D. Cooling element B is a paper tube, cooling element C is an acetate tube, and cooling element D is a hollow PLA cable.

Insert each HNB product into the heating device. The mouth end of the HNB product is inserted into a smoking machine configured to smoke the HNB product. Use an infrared camera (IR camera) to analyze the temperature at the mouth end of the HNB product when smoking the HNB product. The smoking mechanism causes a puff of the HNB product every 30 seconds, and each puff lasts for 2 seconds. For each puff, measure the temperature at the mouth end of the HNB product. The experiment is carried out at standard room temperature and humidity. The experiment was repeated for each HNB product. The traditional cooling elements (B, C, and D) are then removed from the HNB product and replaced with cooling element A according to the present invention. The experiment was repeated for each of the three HNB products (now including cooling element A).

4, 5, and 6 illustrate the temperature at the mouth end of the HNB product containing the cooling element A for each suction compared with the cooling elements B, C, and D. These figures show that the cooling element A of the present invention can provide a cooling effect equivalent to or better than that of a conventional cooling element, while providing many additional benefits (for example, cheaper to manufacture) and better organoleptic properties (for example, taste and feel) Wait. In particular, FIG. 6 illustrates that for each puff, the nozzle end temperature of the HNB product with cooling element A is significantly lower than the nozzle end temperature of the HNB product with PLA cooling element D. This means that the thermoformed cellulose acetate cooling element of the present invention can provide improved cooling over traditional PLA elements without many of the disadvantages of PLA elements.

This article has disclosed the cooling elements, smoking articles, uses and methods described by the following numbered paragraphs:

1.) A cooling element comprising a longitudinally extending core, the longitudinally extending core includes a plurality of longitudinally extending holes, wherein the diameter of each hole is ≥ 0.8 mm.

2.) The cooling element according to paragraph 1, wherein the diameter of each hole is 0.8mm to 2.5mm.

3.) The cooling element according to paragraph 1 or 2, wherein the diameter of each hole is 1.5mm to 2.5mm.

4.) The cooling element according to any one of the preceding paragraphs, which includes two to twelve holes.

5.) The cooling element according to any one of the preceding paragraphs, which includes two to six holes.

6.) The cooling element according to any one of the preceding paragraphs, which includes two, three, four, five or six holes.

7.) A cooling element according to any of the preceding paragraphs, wherein each hole extends the entire length of the core.

8.) The cooling element according to any one of the preceding paragraphs, wherein the length of the cooling element is 5 to 50 mm, for example, 10 to 30 mm, for example, 8 to 24 mm, for example, 15 to 20 mm, for example, 18 mm.

9.) The cooling element according to any one of the preceding paragraphs, wherein the circumference of the cooling element is 12 mm to 30 mm, for example, 15 mm to 28 mm, more preferably, 17 mm to 25 mm.

10.) The cooling element according to any one of the preceding paragraphs, wherein the cooling element is thermoformed from cellulose acetate.

11.) The cooling element according to any one of the preceding paragraphs, wherein each hole has a substantially circular cross-section.

12.) The cooling element according to any of the preceding paragraphs, wherein the hole has a substantially circular cross-section and/or the hole has a cross-section of a different shape, for example, a semicircular (D-shaped) cross-section, for example, a square cross-section, such as , Triangular cross-section, for example, hollow star-shaped cross-section, for example, trilobal cross-section, for example, pentagonal cross-section, for example, tooth-shaped cross-section, for example, a cross-section in the shape of a logo or other patterns.

13.) A cooling element for tobacco heating products and/or HNB products, which comprises a longitudinally extending core, and the longitudinally extending core includes two to twelve longitudinally extending holes.

14.) A cooling element for tobacco heating products and/or HNB products, comprising a longitudinally extending core, the longitudinally extending core includes a plurality of longitudinally extending holes, wherein the diameter of each hole is greater than or equal to 0.8mm.

15.) A smoking article (e.g., tobacco heating product, HNB product), which comprises a cooling element according to any one of the preceding paragraphs and optionally one or more other discrete segments.

16.) A tobacco heating product and/or HNB product, which includes a cooling element, the cooling element includes a longitudinally extending core, and the longitudinally extending core includes a plurality of longitudinally extending holes, wherein the diameter of each hole is ≥0.8 mm.

17.) A tobacco heating product and/or HNB product, which includes a cooling element, the cooling element includes a longitudinally extending core, and the longitudinally extending core includes two to twelve longitudinally extending holes.

18.) The tobacco heating product and/or HNB product according to paragraph 16 or 17, wherein the diameter of each hole is 0.8mm to 2.5mm.

19.) The tobacco heating product and/or HNB product according to any one of paragraphs 16 to 18, which includes two to six holes.

20.) The tobacco heating product and/or HNB product according to any one of paragraphs 16 to 19, wherein each hole extends the length of the cooling element.

21.) The tobacco heating product and/or HNB product according to any one of paragraphs 16 to 20, which further includes one or more other discrete segments.

22.) The use of a cooling element in tobacco heating products and/or HNB products, comprising a longitudinally extending core, the longitudinally extending core includes a plurality of longitudinally extending holes, wherein the diameter of each hole is ≥0.8 mm.

23.) The use of a cooling element in tobacco heating products and/or HNB products, comprising a longitudinally extending core, which includes two to twelve longitudinally extending holes.

24.) A cooling element, comprising a longitudinally extending core, the longitudinally extending core includes three longitudinally extending holes, wherein the diameter of each hole is ≥ 0.8 mm.

25.) A cooling element, comprising a longitudinally extending core, the longitudinally extending core includes four longitudinally extending holes, wherein the diameter of each hole is ≥ 0.8 mm.

26.) A cooling element, comprising a longitudinally extending core, the longitudinally extending core includes five longitudinally extending holes, wherein the diameter of each hole is ≥ 0.8 mm.

27.) A method of manufacturing a cooling element, which includes the following steps: passing a plasticizer-applied material through a forming means, while heat-treating the material to form a longitudinally extending core made of the material, the longitudinally extending core includes a plurality of The longitudinally extending holes, wherein the diameter of each hole is ≥0.8mm, the forming means includes at least one protruding inner rod (mandrel), the protruding inner rod includes a plurality of pins, and the cross-sectional profile of each pin is substantially equal to the cross-section of the longitudinally extending hole.

28.) A cooling element for tobacco heating products and/or HNB products, comprising a longitudinally extending core, and the longitudinally extending core includes three longitudinally extending holes.

29.) The cooling element according to paragraph 28, wherein the longitudinally extending holes are arranged in a substantially triangular configuration.

30.) The cooling element according to paragraph 28 or 29, wherein the diameter of each hole is ≥ 0.8 mm.

100: HNB products 102: Cylindrical block of reconstituted tobacco 104: Cylindrical block of cellulose acetate tow 106: Cylindrical cooling element 108: cigarette holder section 110: Longitudinal extension core 112: Longitudinal extension hole

The present invention will now be discussed in more detail with reference to the accompanying drawings, in which: Figure 1 shows a schematic diagram of a HNB product according to the present invention, which includes a cooling element according to an embodiment of the present invention; Figure 2 shows a schematic diagram of the cooling element of the present invention shown in Figure 1; Figure 3 shows the cross-sectional profile of some cooling elements according to various embodiments of the present invention, wherein the cross-section of the hole has various shapes; Figure 4 is a diagram showing the change of the mouth end temperature of the HNB product with the suction when the HNB product contains cooling element A and the HNB product contains cooling element B compared to when the HNB product contains cooling element B; Figure 5 is a diagram showing the change of the mouth end temperature of the HNB product with suction when the HNB product contains cooling element A and when the HNB product contains cooling element C; Fig. 6 is a diagram showing the change of the mouth end temperature of the HNB product with the suction when the HNB product contains the cooling element A and the HNB product contains the cooling element D compared with the HNB product.

100: HNB products

102: Cylindrical block of reconstituted tobacco

104: Cylindrical block of cellulose acetate tow

106: Cylindrical cooling element

108: cigarette holder section

110: Longitudinal extension core

112: Longitudinal extension hole

Claims (14)

A cooling element for tobacco heating products and/or HNB products includes a longitudinally extending core, and the longitudinally extending core includes three longitudinally extending holes. Such as the cooling element of claim 1, wherein the longitudinally extending holes are arranged in a substantially triangular configuration. Such as the cooling element of claim 1 or 2, wherein the diameter of each hole is ≥ 0.8mm. The cooling element according to any one of claims 1 to 3, wherein the diameter of each hole is 1.5mm to 2.5mm. The cooling element according to any one of claims 1 to 4, wherein the cooling element is thermoformed from cellulose acetate. The cooling element according to any one of claims 1 to 5, wherein each hole has a substantially circular cross-section. A tobacco heating product and/or HNB product includes a cooling element, the cooling element includes a longitudinally extending core, and the longitudinally extending core includes three to five longitudinally extending holes. Such as the tobacco heating product and/or HNB product of claim 7, wherein the diameter of each hole is ≥0.8mm. Such as the tobacco heating product and/or HNB product of claim 7 or 8, wherein the diameter of each hole is 0.8mm to 2.5mm. Such as the tobacco heating product and/or HNB product of any one of claims 7 to 9, which includes three longitudinally extending holes. The tobacco heating product and/or HNB product of any one of claims 7 to 10, wherein each hole extends the length of the cooling element. Such as the tobacco heating product and/or HNB product of any one of claims 7 to 11, which further includes one or more other discrete segments. A cooling element is used in tobacco heating products and/or HNB products. The cooling element includes a longitudinally extending core, and the longitudinally extending core includes three to five longitudinally extending holes. A method of manufacturing a cooling element, which includes the following steps: passing a plasticizer-applied material through a forming means while heat-treating the material to form a longitudinally extending core made of the material, the longitudinally extending core comprising A plurality of longitudinally extending holes, wherein the diameter of each hole is ≥0.8mm, the forming means includes at least one protruding inner rod (mandrel), the protruding inner rod includes a plurality of pins, and the cross-sectional profile of each pin is substantially equal to the longitudinal Section of the extension hole.

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