Tobacco sheet and a heat-not-burn cigarette
By using a grid structure of interlaced thin tobacco strands arranged in a crisscross pattern to form closed annular holes in heated cigarettes, the problem of tobacco strand breakage is solved, and uniform filling and strength enhancement of tobacco sheets are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN SANLIAN NEW MATERIAL CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-23
Smart Images
Figure CN224386743U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cigarette technology, and in particular to tobacco sheets and heated cigarettes. Background Technology
[0002] Heated cigarettes can be categorized into ordered and disordered structures based on the arrangement of tobacco shreds within the smoking section. Because ordered heated cigarettes have a more uniform arrangement of tobacco shreds, heat transfer is more even, and therefore most existing heated cigarettes employ an ordered structure. Ordered heated cigarettes are typically formed by completely cutting thin sheets of tobacco into separate strips and then bundling and curling them. However, if the strips are too long, breakage is likely, resulting in missing filler shreds in the cigarette and causing quality defects such as holes, clumping, and uneven distribution within the smoking section. Utility Model Content
[0003] Therefore, it is necessary to provide a tobacco sheet to address the quality defects in existing heated cigarettes, such as excessively long tobacco strands that are prone to breakage, resulting in holes, clumping, and uneven distribution within the cigarette's smoking section.
[0004] A tobacco sheet includes a sheet body, the sheet body further including a plurality of crisscrossed bundles of sheet fibers, any one of the plurality of crisscrossed bundles of sheet fibers being connected to at least two other bundles of sheet fibers to form a plurality of spaced-apart closed annular holes on the sheet body, each bundle of sheet fibers being constructed as the hole wall of the corresponding closed annular hole.
[0005] In one embodiment, the plurality of crisscrossed thin sheet filament bundles include several first thin sheet filament bundles extending along a first direction. Each first thin sheet filament bundle is spaced apart, and a closed annular hole is provided between any two adjacent first thin sheet filament bundles. The first thin sheet filament bundles are constructed as the hole walls of the corresponding closed annular holes.
[0006] In one embodiment, the plurality of crisscrossed thin sheet filament bundles further include several second thin sheet filament bundles extending along a second direction. Each second thin sheet filament bundle is spaced apart and connected to each first thin sheet filament bundle. A closed annular hole is provided between any two adjacent second thin sheet filament bundles. The second thin sheet filament bundle is constructed as the hole wall of the corresponding closed annular hole, wherein the second direction is set at a preset angle with the first direction.
[0007] In one embodiment, the inner contour of the projected wall of the closed annular hole is quadrilateral in the thickness direction of the sheet body.
[0008] In one embodiment, the distance between any two adjacent second sheet filament bundles and any first sheet filament bundle is 25mm-50mm.
[0009] In one embodiment, the distance between any two adjacent first sheet filament bundles and any second sheet filament bundle is 5mm-15mm.
[0010] In one embodiment, the preset included angle is 15°-60°.
[0011] In one embodiment, the thickness of the sheet filament bundle is 0.5 mm to 2 mm; or / and the width of the sheet filament bundle is 1 mm to 5 mm.
[0012] In one embodiment, the sheet body includes a connecting region, which is the connection point between each sheet filament bundle and other sheet filament bundles, and the area of the connecting region is 1 mm. 2 -30mm 2 .
[0013] This invention also provides a heated cigarette that can solve at least one of the above-mentioned technical problems.
[0014] A heated cigarette comprising the aforementioned tobacco sheet.
[0015] Beneficial effects:
[0016] This utility model provides a tobacco sheet, including a sheet body and multiple sets of crisscrossed filament bundles. Any one set of crisscrossed filament bundles is connected to at least two other sets to form multiple spaced-apart closed annular holes on the sheet body. Each set of filament bundles is constructed as the wall of the corresponding closed annular hole. This application achieves a grid structure by connecting any one set of crisscrossed filament bundles to at least two other sets to form multiple spaced-apart closed annular holes on the sheet body. This prevents the tobacco sheet from being cut into completely separate filaments during processing; instead, the filaments are connected through connection points, preventing some filaments from detaching from the whole, thus avoiding roll wrapping or breakage and preventing uneven quality defects caused by tobacco filling.
[0017] This utility model also provides a heated cigarette, comprising the above-mentioned tobacco sheet, which can achieve at least one of the above-mentioned technical effects. Attached Figure Description
[0018] Figure 1This is a schematic diagram of a tobacco sheet in its natural state according to an embodiment of the present invention.
[0019] Figure 2 This is a schematic diagram of a tobacco sheet under a certain tensile force according to an embodiment of the present invention.
[0020] Figure 3 This is a schematic diagram of a tobacco sheet in a flat state according to an embodiment of the present invention.
[0021] Figure 4 This is a schematic diagram showing the enlarged connecting area of a tobacco sheet in a flat state, according to an embodiment of the present invention.
[0022] Figure 5 This is a schematic diagram showing the enlarged connection area of a tobacco sheet in a flat state, as provided in another embodiment of the present invention.
[0023] Icon labels:
[0024] 100 - Thin sheet body; 110 - Closed annular hole; 120 - Thin sheet filament bundle; 130 - First thin sheet filament bundle; 140 - Second thin sheet filament bundle; 150 - Thin sheet filament; 160 - Connecting area. Detailed Implementation
[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0026] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0027] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0029] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0030] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0031] See Figure 1 , Figure 1This is a schematic diagram of a tobacco sheet in its natural state according to an embodiment of the present invention. The tobacco sheet provided in one embodiment of this application includes a sheet body 100, which further includes a plurality of interlaced sheet strand bundles 120. Any one of the interlaced sheet strand bundles 120 is connected to at least two other sheet strand bundles 120 to form a plurality of spaced-apart closed annular holes 110 on the sheet body 100. Each sheet strand bundle 120 is configured as the hole wall of the corresponding closed annular hole 110.
[0032] Specifically, this application connects any one of the multiple crisscrossing sheet bundles 120 with at least two other sheet bundles 120 to form multiple spaced closed annular holes 110 on the sheet body 100, so that the tobacco sheet forms a grid structure. That is, during the processing of the tobacco sheet, the tobacco sheet is not cut into completely separate strands, but the connection between the strands is strengthened through connection points, so that some strands will not detach from the whole and thus become entangled in the roller or break, thereby avoiding uneven quality defects in the tobacco filling.
[0033] See Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of a tobacco sheet under a certain tensile force according to an embodiment of the present invention. Figure 3 This is a schematic diagram of a tobacco sheet in a flat state according to an embodiment of the present invention. In one embodiment, a plurality of crisscrossed tobacco filament bundles 120 include several first tobacco filament bundles 130 extending along a first direction. Each first tobacco filament bundle 130 is spaced apart, and a closed annular hole 110 is provided between any two adjacent first tobacco filament bundles 130, and the first tobacco filament bundle 130 is constructed as the hole wall of the corresponding closed annular hole 110.
[0034] Specifically, each of the first sheet fiber bundles 130 in this application corresponds to a completely separated filament in an orderly heated cigarette. Any two adjacent first sheet fiber bundles 130 are connected by at least two sheet fiber bundles 120 to form a closed annular hole 110. This ensures that the connection between any two adjacent first sheet fiber bundles 130 is strengthened through connection points, preventing some filaments from detaching from the whole, while also facilitating the curling of the tobacco sheet around the first direction to form a cigarette. Preferably, the first direction is parallel to the length direction of the tobacco sheet.
[0035] It should be noted that the first sheet bundle 130 in this application extends along the first direction, referring to the tobacco sheet in a flat and straight state. Because the sheet bundle 120 is relatively fine and soft, it is prone to curling under natural conditions.
[0036] See Figure 2 and Figure 3 In one embodiment, the plurality of crisscrossed thin sheet filament bundles 120 further include a plurality of second thin sheet filament bundles 140 extending along a second direction. Each second thin sheet filament bundle 140 is spaced apart and connected to each first thin sheet filament bundle 130. A closed annular hole 110 is provided between any two adjacent second thin sheet filament bundles 140. The second thin sheet filament bundle 140 is constructed as the hole wall of the corresponding closed annular hole 110, wherein the second direction is set at a preset angle to the first direction.
[0037] Specifically, the arrangement of connecting each second sheet filament bundle 140 extending along the second direction with each second sheet filament bundle 140 extending along the first direction enables the connection points on the sheet body 100 to be evenly distributed, improves the strength of each sheet filament bundle 120, thereby reducing the occurrence of breakage of the sheet filament bundle 120 and improving the reliability of the tobacco sheet.
[0038] The arrangement of connecting each second sheet filament bundle 140 extending along the second direction with each second sheet filament bundle 140 extending along the first direction can increase the number of connection points on each sheet filament bundle 120, thereby further increasing the connection strength between each sheet filament bundle 120 and improving the strength of the tobacco sheet.
[0039] It should be noted that the second sheet bundle 140 in this application extends along the second direction, referring to the tobacco sheet in a flat and straightened state. Because the sheet bundle 120 is relatively fine and soft, it is prone to curling under natural conditions.
[0040] See Figure 2 and Figure 3 In one embodiment, the inner contour of the projected hole wall of the closed annular hole 110 is quadrilateral in the thickness direction of the sheet body 100.
[0041] Specifically, the wall of each closed annular hole 110 is formed by two adjacent first thin sheet bundles 130 and two adjacent second thin sheet bundles 140, so that the projection of the wall of the closed annular hole 110 is a closed ring composed of four line segments connected end to end. Since quadrilaterals are easy to deform, the tobacco sheet is easy to deform. Thus, when the heater is inserted into the heated cigarette made of tobacco sheet, the tobacco sheet can deform under the thrust, preventing the tobacco sheet from being pushed out.
[0042] In other embodiments, the sheet filament bundle 120 also includes sheet filament bundles 120 extending in directions other than the first direction and the second direction, such that the inner contour of the projected hole wall of the closed annular hole 110 in the thickness direction of the sheet body 100 is a pentagon or other polygon.
[0043] See Figure 2 and Figure 3 In one embodiment, the distance between the connection points of any two adjacent second thin sheet filament bundles 140 and any first thin sheet filament bundle 130 is 25mm-50mm, thereby enabling the connection points on the thin sheet body 100 to be arranged reasonably to improve the strength of the thin sheet filament bundle 120.
[0044] See Figure 2 and Figure 3 In one embodiment, the distance between the connection points of any two adjacent first thin sheet filament bundles 130 and any second thin sheet filament bundle 140 is 5mm-15mm, thereby enabling the connection points on the thin sheet body 100 to be arranged reasonably to improve the strength of the thin sheet filament bundle 120.
[0045] See Figure 2 and Figure 3 In one embodiment, the preset included angle is 15°-60°, which facilitates the uniform distribution of connection points on the sheet body 100, enhances the strength of each sheet filament bundle 120, and makes it easier to detect deformation of the tobacco sheet.
[0046] It should be noted that the range of the preset angle in this application refers to the angle between the extending directions of the first sheet bundle 130 and the second sheet bundle 140 when the tobacco sheet is laid flat and straight. Because the sheet bundle 120 is relatively thin and soft, it is prone to curling in its natural state, which changes the angle between the first sheet bundle 130 and the second sheet bundle 140.
[0047] See Figure 2 and Figure 3 In one embodiment, each sheet filament bundle 120 has sheet filaments 150 drawn off.
[0048] Specifically, each first set of thin sheet filament bundles 130 includes at least one thin sheet filament 150. When a first set of thin sheet filament bundles 130 includes at least two thin sheet filaments 150, one of the at least two thin sheet filaments 150 is constructed as a first filament bundle body. The first filament bundle body is connected to each second set of thin sheet filament bundles 140. The other thin sheet filaments 150 in the at least two thin sheet filament bundles 150 are at least partially separated from the corresponding first filament bundle body.
[0049] Each second set of thin sheet filament bundles 140 includes at least one thin sheet filament 150. When a second set of thin sheet filament bundles 140 includes at least two thin sheet filaments 150, one of the at least two thin sheet filaments 150 constitutes a second filament bundle body. The second filament bundle body is connected to each first set of thin sheet filament bundles 130, and the other thin sheet filaments 150 are at least partially separated from their corresponding second filament bundle bodies. The width of the thin sheet filament 150 is 0.8 mm to 1.0 mm.
[0050] It should be noted that, ideally, there are no thin sheet wires 150 drawn off from the thin sheet wire bundle 120. The thin sheet wire bundle 120 is composed of several thin sheet wires 150. During the processing, inevitably one or two thin sheet wires 150 will break, causing the thin sheet wires 150 to be drawn off from the corresponding thin sheet wire bundle 120.
[0051] See Figure 2 and Figure 3 In one embodiment, the thickness of the sheet filament bundle is 0.5mm-2mm, thereby ensuring both the ease of heating the tobacco sheet and the strength of the sheet filament bundle 120. The thickness direction of the sheet filament bundle is the same as the thickness direction of the sheet body 100.
[0052] See Figure 2 and Figure 3 In one embodiment, the width of the sheet filament bundle is 1mm-5mm, thereby ensuring that the tobacco sheet is easy to heat while also ensuring the strength of the sheet filament bundle 120.
[0053] See Figure 3 , Figure 4 and Figure 5 , Figure 4 This is a schematic diagram showing the enlarged connecting area of a tobacco sheet in a flat state, according to an embodiment of the present invention. Figure 5 This is a magnified schematic diagram of the connecting area of a tobacco sheet in a flat state, according to another embodiment of the present invention. In one embodiment, the sheet body 100 includes a connecting area 160, which is the connection point between each sheet filament bundle 120 and other sheet filament bundles 120. The area of the connecting area 160 is 1 mm². 2 -30mm 2 This increases the connection strength between adjacent thin sheet filament bundles 120, thereby increasing the strength of the thin sheet filament bundles 120.
[0054] Furthermore, the connecting area 160 can be in the shape of a circle, rectangle, or other shapes.
[0055] This utility model embodiment also includes a heated cigarette, comprising the aforementioned tobacco sheet. This application connects any one of a plurality of interlaced tobacco sheet bundles 120 with at least two other tobacco sheet bundles 120 to form a plurality of spaced-apart closed annular holes 110 on the sheet body 100, creating a mesh structure in the tobacco sheet. This means that during the processing of the tobacco sheet, it is not cut into completely separate strands, but rather the strands are connected through connection points, preventing some strands from detaching from the whole and thus avoiding roll wrapping or breakage, and preventing uneven quality defects caused by tobacco filling.
[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0057] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A tobacco sheet, characterized in that, The tobacco sheet includes a sheet body, which further includes a plurality of crisscrossed sheet filament bundles. Any one of the plurality of crisscrossed sheet filament bundles is connected to at least two other sheet filament bundles to form a plurality of spaced closed annular holes on the sheet body. Each sheet filament bundle is constructed as the hole wall of the corresponding closed annular hole.
2. The tobacco sheet according to claim 1, characterized in that, The plurality of crisscrossed thin sheet filament bundles include several first thin sheet filament bundles extending along a first direction. Each first thin sheet filament bundle is spaced apart, and a closed annular hole is provided between any two adjacent first thin sheet filament bundles. The first thin sheet filament bundles are constructed as the hole walls of the corresponding closed annular holes.
3. The tobacco sheet according to claim 2, characterized in that, The plurality of crisscrossed thin sheet filament bundles also include several second thin sheet filament bundles extending along the second direction. Each second thin sheet filament bundle is spaced apart and connected to each first thin sheet filament bundle. A closed annular hole is provided between any two adjacent second thin sheet filament bundles. The second thin sheet filament bundle is constructed as the hole wall of the corresponding closed annular hole. The second direction is set at a preset angle to the first direction.
4. The tobacco sheet according to claim 3, characterized in that, In the thickness direction of the sheet body, the inner projection of the wall of the closed annular hole is a quadrilateral.
5. The tobacco sheet according to claim 3, characterized in that, The distance between any two adjacent second thin sheet filament bundles and any first thin sheet filament bundle is 25mm-50mm.
6. The tobacco sheet according to claim 3, characterized in that, The distance between any two adjacent first thin-sheet filament bundles and any second thin-sheet filament bundle is 5mm-15mm.
7. The tobacco sheet according to claim 3, characterized in that, The preset included angle is between 15° and 60°.
8. The tobacco sheet according to any one of claims 1-7, characterized in that, The thickness of the thin filament bundle is 0.5mm-2mm; or / and the width of the thin filament bundle is 1mm-5mm.
9. The tobacco sheet according to any one of claims 1-7, characterized in that, The sheet body includes a connecting region, which is the connection point between each sheet filament bundle and other sheet filament bundles, and the area of the connecting region is 1 mm². 2 -30mm 2 .
10. A heated cigarette, characterized in that, Includes the tobacco sheet as described in any one of claims 1-9.