Granular cigarette

Abstract

The utility model discloses a particle type cigarette which comprises a rope wool structural element and a fuming element, the rope wool structural element is located on the downstream of the fuming element and is adjacent to the fuming element to block particles of the fuming element, and the rope wool structural element comprises a filter element part and an outer layer wrapping material. The filter element part comprises a core wire and fiber fluff extending outwards along the axis of the core wire, and the gap between the fiber fluff is smaller than the particle size of particles of the smoke generating element. The gap between the fiber fluff is smaller than the particle size of particles of the smoke generating element, so that the particles of the smoke generating element can be effectively prevented from leaking or moving, the fiber fluff is sequentially arranged in an outward scattering mode from the axis of the core wire and is arranged in the direction relatively perpendicular to the smoke flowing direction, the smoke cooling area is large, meanwhile, the low-suction-resistance characteristic is achieved, and the smoke generating element has the smoke generating effect. Therefore, low interception of the flue gas is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarettes, in particular to a granular cigarette. Background Art

[0002] Granular cigarettes are a new type of cigarette that uses granular smoking materials as smoke generators. It is usually necessary to design certain sealing structures at both ends of the granular materials to ensure that the particles will not leak or move.

[0003] Furthermore, during the smoking process, the blocking material needs to have certain heat shrinkage resistance and low suction resistance to reduce the displacement of particles downstream, reduce the possibility of smoke being trapped, and reduce the impact of the above factors on consumers' smoking satisfaction.

[0004] In the downstream of the smoke particles, porous hardware is often used as a plugging element, usually ceramics, polymer materials, with a porous structure in the center, and a chamfer or groove structure designed on the periphery to allow smoke to flow, and an interference fit with the inner part of the outer smoke pipe. Its structure is complex, and it is mostly processed by injection molding, with high production costs. In addition, the safety and heat shrinkage resistance of the selected materials need to be verified. Another option is to use a conventional cigarette filter rod as a plug, which is not conducive to low smoke retention.

[0005] Therefore, it is necessary to provide a new type of blocking element for granular cigarettes, which meets the requirements of low draw resistance and blocking function, and has a simple structure and high production efficiency. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, the utility model provides a granular cigarette containing a chenille yarn structural element, wherein the chenille yarn structural element can provide blocking and low draw resistance functions.

[0007] In order to solve the above problems, the technical solution of the utility model to solve the technical problems is:

[0008] A particle-type cigarette, comprising a chenille yarn structural element and a smoking element, wherein the chenille yarn structural element is located downstream of the smoking element and adjacent to the smoking element to block particles of the smoking element,

[0009] The rope velvet yarn structural element comprises a filter core part and an outer layer of wrapping material. The rope filter core part comprises a core wire and fiber fluff extending outward along the axis of the core wire. The gaps between the fiber fluffs are smaller than the particle size of the particles of the smoking element.

[0010] Optionally, the core line coincides with or is parallel to the axis of the outer wrapping material.

[0011] Optionally, the three-dimensional appearance of the filter element may be similar to a "test tube brush", with the fiber fluff scattering outward from the axis, or forming a fixed angle with the axial direction of the core wire, preferably in the range of 45-135°, more preferably 80-100°.

[0012] Optionally, the fiber fluff is fixedly arranged on the section from the core axis to form but not limited to a flat straight structure, a Y-shaped structure, a cross structure, or a snowflake structure. The "Y-shaped structure, cross structure, or snowflake structure" refers to a pattern formed by the radial projection of the fiber fluff on a sufficiently long section of chenille material on the core.

[0013] Optionally, the connection point between the fiber fluff and the core wire is spiral or ring-shaped along the axis of the core wire. Optionally, the ring-shaped means that, like a ring, a ring of fiber fluff is placed on the core wire at a certain distance, and the rings are not connected; the spiral structure has a pitch of 0.2-50mm, preferably 1.2-5mm.

[0014] Optionally, the central thickness of the thread-shaped structure corresponds to the diameter of the core material, the thread thickness is proportional to the diameter of the fiber fluff, and the thread pitch corresponds to the inverse of the twist of the chenille yarn.

[0015] Optionally, the fiber fluff is arranged in a periodic structure along the axial direction of the core wire, including one or more combinations of cones, cylinders, truncated cones, etc. The circumferential spacing is 0.5-80 mm, preferably 5-30 mm.

[0016] Optionally, the ends of the fiber fluff are in contact with the inner wall of the outer layer wrapping material. The ends of the fiber fluff can be in contact with the inner wall of the outer layer wrapping material through physical action, preferably, they can be in contact with each other through an adhesive.

[0017] Optionally, the fiber fluff can be cut in a certain oblique direction through the outer circle to form a periodic structure similar to a cone or a truncated cone. Optionally, the fiber fluff can also be cut to form a pagoda-like, wave-like, gourd-like, or special-shaped structure with different diameters.

[0018] Optionally, the fiber fluff is periodically, evenly and neatly distributed inside the outer wrapping material.

[0019] Optionally, the fiber fluff can be composed of fluff of different lengths distributed inside the outer wrapping material. Optionally, the fluff of different lengths is formed by fibers containing at least two different properties, which produce different expansion and contraction changes through physical effects such as tension and heat. Optionally, acetate fiber and high shrinkage polyester fiber are used as fiber fluff at the same time. When heated to 100°C, the polyester fiber curls while the acetate fiber remains basically unchanged, thereby forming a fiber arrangement of different lengths. Optionally, acetate fiber mixed with a single denier of 2.0 dtex and a single denier of 22 dtex is selected as the fiber fluff material. After cutting, the difference in resilience caused by the difference in single denier can cause the final two fibers to shrink to different degrees, so that the fiber fluff of the resulting lanyard yarn presents different lengths.

[0020] Optionally, the piles of different lengths can also be formed by twisting two or more chenille yarns with different pile lengths. For example, two chenille yarns can be further arranged in parallel or twisted together into one. At this time, if the fiber lengths of the two chenille yarns are different, the resulting chenille yarn will have piles of two lengths alternately distributed.

[0021] Optionally, the cigarette filter rod has a diameter of 4-9 mm and a porosity of 20-99%, preferably 50-99.5%, and more preferably 90-99%.

[0022] Optionally, the fiber fluff is a polymer fiber or a cellulose fiber, including but not limited to cellulose, regenerated cellulose, cellulose derivatives, starch-based thermoplastic resins, cellulose acetate, polylactic acid, chitosan and its derivatives, alginate, polyhydroxybutyrate, poly-ε-caprolactone, polyglycolic acid, polyhydroxyalkanoate, polypropylene, polyethylene, polyvinyl alcohol, polyester fiber, polyamide fiber, polyurethane, polyacrylonitrile, and combinations thereof. The fiber fluff has a fiber fineness of 0.5-133 dtex, preferably 2.2-22 dtex.

[0023] Optionally, the fiber fluff has a fiber fineness of 0.5-133 dtex, preferably a fiber fineness of 2.0-22 dtex.

[0024] Optionally, the core wire includes but is not limited to polyester fiber, polyamide fiber, polyethylene fiber, polypropylene fiber, cotton yarn, linen yarn, viscose fiber, chitosan fiber, seaweed fiber, acetate fiber, polylactic acid fiber, seaweed fiber, polyacrylonitrile fiber and any one of their modified fibers, metal wires, and composite wires of two or more of them. The core wire has a fineness of at least 2tex and a strength of at least 2N, preferably a strength greater than or equal to 10N.

[0025] Optionally, the core wire is made of a degradable or recyclable material.

[0026] Optionally, the core wire has a fineness of at least 2 tex, preferably 5-80 tex; a strength of at least 2N, optionally, a strength of at least 10N.

[0027] Optionally, the metal wire includes stainless steel wire or copper wire.

[0028] Optionally, in certain embodiments, when the fiber is in a single shape and not in a yarn state, such as a single polymer fiber polyethylene fiber, a single metal wire stainless steel, its fineness is calculated by diameter, and the fineness is at least 0.01 mm. Preferably, the strength is at least 10N.

[0029] The outer wrapping material includes but is not limited to sheet material with a thickness of no more than 4 mm, preferably no more than 2 mm, preferably 0.02-0.5 mm.

[0030] Optionally, the sheet material may be cellulose paper, which is mainly made of plant fibers such as wood, grass, hemp, reed, cotton, etc., preferably cigarette paper, preferably with a thickness of 0.02mm-0.5mm.

[0031] Optionally, the sheet material can be plastic, preferably with a thickness of 0.01-1 mm; optionally, the sheet material is rolled into a tube (thickness 0.05-0.7 mm). The plastic includes one or a mixture of polyolefins, polyesters, polyamides, polyimides, polyaldehydes, cellulose esters, cellulose ethers, polysaccharide-based materials, any derivatives thereof, or any copolymers thereof. Among them, polyolefins include vinyls, propenyls, olefins, styrenes, acrylates, and fluorine-containing olefins; polyesters include polylactic acid, polycarbonate, polyurethane, polyhydroxyalkanoate, polyglycolic acid, poly-ε-caprolactone, polyethylene terephthalate, polybutylene terephthalate, polycyclohexanedimethylene terephthalate, polypropylene terephthalate, acrylonitrile-butadiene-styrene, styrene-acrylonitrile, styrene-butadiene, and styrene-maleic acid styrene copolymers; cellulose esters include cellulose acetate, cellulose acetate butyrate, plasticized cellulose plastics, cellulose propionate, and any derivatives thereof; cellulose ethers include methyl cellulose, ethyl cellulose, benzyl cellulose, phenyl cellulose, and any derivatives thereof; polysaccharide-based materials include starch-based, glycogen, heteropolysaccharides, lignin plastic materials, and modified materials thereof.

[0032] Optionally, the sheet material may be a fabric or non-woven material made of natural fibers or chemical fibers, or may be a hollow tube formed from acetate fiber bundles.

[0033] The particle type cigarette is a heating type cigarette, which includes (such as Figure 1) in the form of a plurality of components, the plurality of components comprising a smoking element, a blocking element upstream of the smoking element, a chenille thread structure element downstream of the smoking element, and a mouthpiece downstream of the chenille structure element. When the cigarette is inhaled, the direction of smoke flow in the cigarette is recorded as from "upstream" to "downstream".

[0034] The upstream blocking element may be a highly air-permeable thin paper, or other structures and materials with blocking functions.

[0035] Preferably, other structures may be spaced between the mouthpiece and the chenille yarn structure, such as a cavity, a cooling element, etc. The specific structures of the above elements may be designed by those skilled in the art as required.

[0036] Compared with granular cigarettes using injection-molded porous hardware or ordinary cigarette holders as blocking elements, the utility model has the following beneficial effects:

[0037] 1) The gaps between the radial fiber piles are smaller than the particle size, and the velvet structure can effectively prevent particle displacement and leakage;

[0038] 2) By controlling the length of the fiber fluff, the ends of the fiber fluff abut against the inner wall of the outer layer wrapping material, so that the velvet structural element can be positioned at a specific position in the cigarette design, and due to the certain stiffness and elasticity of the fluff, the inner wall of the tube will not be damaged;

[0039] 3) Use tobacco acetate fiber as fiber fluff, no triacetin is added, can withstand 200℃ for at least 10min, and the fiber fluff is not connected to each other except at the center axis of the core material. During the heating and smoking process, it will not shrink or stick obviously when the high-temperature smoke flows through, will not move, and will not produce unknown volatiles.

[0040] 4) The fiber fluff is arranged in an orderly manner in a scattered manner from the core axis and in a direction relatively perpendicular to the direction of the smoke flow, which can obtain low absorption resistance and reduce the adsorption and retention of smoke volatilized by the particulate smoking material. Furthermore, the dispersed pores of the rope velvet structure may provide appropriate smoke condensation and cooling effects.

[0041] 5) The chenille yarn structure has many pores and soft elasticity, which is conducive to the post-processing of cigarettes. For example, when punching holes in the outer sleeve during the cigarette processing process, it will not cause the problem of difficult punching like injection molded firmware with high hardness. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the structure of a granular cigarette according to an embodiment of the utility model.

[0043] Figure 2 It is a structural schematic diagram of the chenille yarn structural element of the utility model.

[0044] Figure 3 It is a schematic diagram of the cross-sectional structure of the chenille yarn structural element of the utility model.

[0045] Figure 4 It is a longitudinal schematic diagram of an embodiment of the chenille yarn structural element of the utility model.

[0046] Figure 5 It is a schematic diagram of the spiral structure of an embodiment of the chenille yarn structural element of the utility model.

[0047] Fig. 6A It is a longitudinal schematic diagram of an embodiment of the "straight-line" chenille yarn structure of the utility model.

[0048] Figure 6B It is a horizontal schematic diagram of an embodiment of the "straight-line" chenille yarn structure of the utility model.

[0049] Fig. 7A It is a horizontal schematic diagram of an embodiment of the "Y-type" chenille yarn structure of the utility model.

[0050] Figure 7B It is a horizontal schematic diagram of an embodiment of the "cross-shaped" chenille yarn structure of the utility model.

[0051] Figure 7C It is a horizontal schematic diagram of an embodiment of the "snowflake-type" chenille yarn structure of the utility model.

[0052] Description of reference numerals:

[0053] 11-upstream blocking element, 12-smoke generating element, 13-chenille thread structural element, 14-mouthpiece, 10-1 fiber fluff, 10-2 core thread. DETAILED DESCRIPTION

[0054] The utility model provides a granular cigarette, which comprises a chenille thread structural element and a smoking element, wherein the chenille thread structural element is located downstream of the smoking element and adjacent to the smoking element to seal the granules of the smoking element, and the chenille thread structural element comprises a filter core part and an outer layer of wrapping material, wherein the wrapping material wraps the filter core part to form a rod with a porous structure.

[0055] See also Figure 2 , wherein the filter element part includes a twisted core wire 10-2 and fiber fluff 10-1, the fiber fluff 10-1 extends outward from the core wire axis with the twisted core wire 10-2 as the axis and is radially distributed, the filter element part contains pores for cigarette smoke to pass through, the pore structure is distributed in the gaps between the fiber fluffs, the gaps between the fiber fluffs are smaller than the particle size of the particulate matter of the smoking element, and the core wire coincides with or is parallel to the axis of the outer wrapping material.

[0056] Specifically, a chenille yarn structural element 13 composed of fiber fluff 10-1, core yarn 10-2 and outer layer wrapping material 10-3, the filter element part can be a special form similar to "test tube brush shape", which is made of diacetate fiber as fluff yarn, ordinary yarn as core yarn, and is spun on a fancy spinning machine to form a special form chenille yarn composed of fiber fluff 10-1 on the axis, please refer to Figure 2 Its internal pore structure is mainly determined by the spatial distribution of the fiber villi of the chenille yarn.

[0057] The ends of the fiber fluff are in contact with the inner wall of the outer wrapping material to provide stable support; the connection point between the fiber fluff and the core wire is spiral or ring-shaped along the axis of the core wire.

[0058] The filter element part provides a new smoke flow channel. The main factors include the materials used for the core wire and fiber fluff, fiber denier, and fiber number, which affect the main physical indicators of the filter rod including porosity, and then produce different effects on smoke composition, cooling, and suction resistance.

[0059] The selection of fiber materials of the present invention may consider whether it needs to have phase change heat absorption performance. Among them, acetate fiber (no obvious heat absorption and melting within 200°C) and polylactic acid (melting temperature around 160°C) are representative, and both are green and degradable materials. Acetate fiber has always been the first choice for tobacco materials and has high safety.

[0060] The selection of the core wire material of the utility model can consider the following factors: providing better clamping, axial support, degradable materials, green raw materials, low cost, etc., which can be represented by polyester cotton, polylactic acid, metal wire, etc.

[0061] A production process of a filter element embodiment: two core lines pass through Twisting Hundreds of short fibers are clamped, and the fibers actually present a certain spiral arrangement between each node; similar to the arrangement of spiraling stairs, similar to the process of twisting hemp rope, certain fibers are clamped in the nodes, and the spatial arrangement of the fibers also presents a certain rotation with the curvature of the hemp rope (caused by twisting), which may not be in the same plane, but is a periodic extension and divergent arrangement in the cylinder along the axis of the core material.

[0062] Please refer to the attached picture, Fig. 6A , Figure 6BIn the embodiment, the core wire 10-2 is composed of two or more core materials twisted together, the fiber fluff 10-1 is fiber fluff and fiber fluff clusters, and an angle α is formed between the fiber fluff 10-1 and the core wire 10-2, and the angle α is 45-135°. The diameter of the nearly circular chenille is d. The inclination direction between the fiber fluff 10-1 and the core wire 10-2 is consistent with the direction of smoke flow, that is, the smoke generating element 12 and the chenille wire structural element are as follows: Fig. 6A The right end of the fiber is connected to the flue, so that the flue gas forms a climbing turbulence from the bottom to the top along the inclined fiber fluff. In this way, the flow path of the flue gas is extended, the flue gas heat exchange and cooling potential is provided, which is beneficial to the flue gas condensation and cooling.

[0063] Fig. 7A , Figure 7B and Figure 7C The chenille yarn with any transverse cross section shown in the figure can be obtained by die extruding the chenille yarn with the corresponding radial transverse cross section.

[0064] Figure 4 The filter element portion with the "truncated cone" type structure arrangement shown can be obtained by cutting the cylindrical lanyard yarn, wherein the circular cross-sectional diameters corresponding to the fiber fluffs of different lengths at both ends (respectively d1 and d2), when d1=d2, the fiber fluffs are evenly and neatly distributed inside the outer layer of the wrapping material, that is, the fiber fluffs on the lanyard yarn present a cylindrical periodic arrangement along the axis of the core material, when d1 is greater than d2, it presents a truncated cone structure, when d2 is equal to 0, that is, there is a section of the core material without fiber fluffs clamped in the middle, the fiber fluffs are cut obliquely on both sides, and a pagoda-like periodic structure can be formed, and the length of the fiber fluffs decreases successively along the core line downstream. At this time, the periodic change presents a nearly conical structure. The periodic arrangement on the axis can be one or more combinations of the above structures. The above cylindrical, truncated cone and conical lanyard yarns are limited by outer wrapping to obtain a filter rod, which can further improve the porosity of the filter rod and reduce the suction resistance of the filter rod. A periodic interval of 0.5-80mm.

[0065] The porosity of the chenille yarn structural element is 70-99%, preferably 90-99%.

[0066] The fiber fluff is a polymer fiber, a cellulose fiber, including but not limited to regenerated cellulose, a cellulose derivative, a starch-based thermoplastic resin, cellulose acetate, polylactic acid, polyhydroxybutyrate, poly-ε-caprolactone, polyglycolic acid, polyhydroxyalkanoate, polypropylene, polyethylene, polyvinyl alcohol, polyester fiber, polyamide fiber, polyurethane, polyacrylonitrile. The fiber fineness of the fiber fluff is 1.2-20D, preferably 2.0-8.0D. The fiber fluff is a straight filament or a low-curl fiber.

[0067] The length of the fiber fluff is slightly larger than the inner radius of the cigarette by 0.5-1 mm, so that the ends of the fiber fluff are in contact with the inner wall of the outer wrapping material.

[0068] The granular cigarette is a heating cigarette, which is assembled in the form of a blocking element upstream of the smoke flow direction, a smoking element, a chenille thread structural element downstream of the smoking element, and a mouthpiece downstream of the chenille thread structural element. The chenille thread structural element may include but is not limited to fiber fluff and a core wire.

[0069] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0070] Embodiment 1:

[0071] like Figure 1 As shown, Figure 1 It is a schematic diagram of the structure of a granular cigarette containing a velvet yarn structure. The blocking element 11 is a highly breathable paper film, the smoking element 12 is 250mg tobacco particles with a particle size of 20-50 mesh, the velvet yarn structure element 1 is an acetate fiber velvet structure, and the mouthpiece 14 is an acetate fiber tow filter rod. The velvet yarn structure is made of 20D single denier acetate fiber (fiber fluff), copper (core wire) and polyester / cotton yarn through a velvet process. The four elements are combined using filling technology, and the outside is a paper tube 15 with an inner diameter of 7.0mm and an outer circumference diameter of 8mm (corresponding to the length of the fiber fluff, tightly against the inner wall of the paper tube).

[0072] After heating mode suction, the chenille structural element can fix the downstream and adjacent to the smoke-generating element without displacement, and no heat shrinkage occurs at 200℃ for 6 minutes.

[0073] Example 2

[0074] The difference from Example 1 is that the chenille yarn structural element is prepared by a chenille process using single-denier 2.2D acetate fiber as the fluff and iron and polyester / cotton yarn as the core material.

[0075] After smoking in the heating mode, the chenille yarn structural element can fix the downstream and adjacent to the smoke-generating element without displacement, and no heat shrinkage occurs at 200°C for 6 minutes.

[0076] Example 3

[0077] The difference from Example 1 is that the chenille structure is prepared by a chenille process using single-denier 2.2D acetate fiber as the fluff, and PE yarn and polyester / cotton yarn as the core material.

[0078] After smoking in the heating mode, the chenille yarn structural element can fix the downstream and adjacent to the smoke-generating element without displacement, and no heat shrinkage occurs at 200°C for 6 minutes.

[0079] Example 4

[0080] The difference from Example 1 is that the material structure of the chenille yarn structural element is shown in Figure 2 , where the length of the fiber fluff 10-1 decreases along the central axis and downstream ( Figure 4 ).

[0081] After the heating mode is drawn, the velvet hairs near the smoke element do not shrink or shift, and the smoke particles will not move forward due to the heater pushing them downstream. The gradually shortened hairs provide multi-level smoke flow channels, smoke condensation and smoke cooling.

[0082] The above-mentioned related explanations and descriptions of the embodiments are for the convenience of ordinary technicians in the technical field to understand and apply the utility model. It is obvious that those familiar with the technology in the field can easily make various modifications to these contents and apply the general principles described here to other embodiments without creative work. Therefore, the utility model is not limited to the above-mentioned related explanations and descriptions of the embodiments. Improvements and modifications made by technicians in the field based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A granular cigarette, characterized in that: The cigarette comprises a chenille structural element and a smoking element, wherein the chenille structural element is located downstream of and adjacent to the smoking element to block particles of the smoking element, The velvet yarn structural element comprises a filter core part and an outer layer of wrapping material. The filter core part comprises a core wire and fiber fluff extending outwardly along the axis of the core wire. The gaps between the fiber fluffs are smaller than the particle size of the particles of the smoking element.

2. The granular cigarette according to claim 1, characterized in that: The fiber fluff is freely scattered outward from the axis of the core wire or forms a fixed angle with the axial direction of the core wire, and the angle range is 45-135 degrees.

3. The granular cigarette according to claim 1, characterized in that: The ends of the fiber fluff are in contact with the inner wall of the outer wrapping material; the length of the fiber fluff is slightly greater than the inner radius of the cigarette by 0.5-1 mm; The ends of the fiber pile can be in physical contact with the inner wall of the outer wrapping material.

4. The granular cigarette according to claim 1, characterized in that: The connection point between the fiber fluff and the core wire is spiral or annular along the axis of the core wire; the central thickness of the spiral structure corresponds to the diameter of the core material, the thread thickness is proportional to the diameter of the fiber fluff, and the thread spacing corresponds to the inverse of the twist of the rope wool line; the pitch of the spiral structure is 0.2-50mm.

5. The granular cigarette according to claim 1, characterized in that: The fiber fluff is evenly and neatly distributed inside the outer wrapping material.

6. The granular cigarette according to claim 1, characterized in that: The porosity of the chenille yarn structural element is 70-99%.

7. The granular cigarette according to claim 1, characterized in that: The core line is coincident with or parallel to the axis of the outer layer of wrapping material.

8. The granular cigarette according to claim 1, characterized in that: The fiber fluff is fixedly arranged on the axial section of the core wire to form but not limited to a straight-line structure, a Y-shaped structure, a cross structure, and a snowflake structure.

9. The granular cigarette according to claim 1, characterized in that: The fiber fluff is acetate fiber for cigarettes, and its form is straight fiber or low-curl fiber.

10. The granular cigarette according to claim 1, characterized in that: The fiber fluff is cut obliquely on both sides to form a pagoda-like periodic structure, and the length of the fiber fluff decreases along the core line toward the downstream.

11. The granular cigarette according to claim 1, characterized in that: It also includes assembling a blocking element upstream of the smoke flow direction, a smoke generating element, the chenille thread structural element downstream of the smoke generating element, and a mouthpiece downstream of the chenille structural element.

Images