A filter rod filled with triangular spacers and its processing method

Abstract

This invention discloses a filter rod filled with triangular spacers and filaments. The triangular filter rod is cylindrical in shape and consists of an outer forming paper (W) rolled into a cylinder (W1) and an inner forming paper (N) folded into a cylinder with an equilateral triangle (N1) in cross-section along the axial direction of the cylinder (W1). The three vertices of the triangle (N1) are located on the inner wall of the cylinder (W1). An outer filament bundle (S1) is filled between the outer forming paper (W) and the inner forming paper (N), and an inner filament bundle (S2) is filled inside the inner forming paper (N). This invention also discloses a method for preparing the filter rod filled with triangular spacers and filaments.

Description

Technical Field

[0001] This invention belongs to the field of tobacco technology, specifically relating to a filter rod filled with triangular intervals and its processing method. Background Technology

[0002] With increasing market competition in the tobacco industry, single-function tobacco materials can no longer meet the needs of cigarette brand development and product specialization. Along with the application of new technologies, processes, and materials in cigarette products, tobacco materials have evolved from single-function to multi-functional and diversified. As an important component of cigarettes, filter rods are increasingly favored by consumers for their novel appearance and special functions, leading to the growing use of hollow filter rods in cigarettes due to their unique features.

[0003] The purpose of adding flavoring to cigarettes is to improve their physicochemical properties, providing consumers with specific taste, smell, and tactile sensations, and enhancing their acceptability. There are many methods of flavoring, including adding it directly to the tobacco or to other cigarette accessories such as filters, cigarette paper, and packaging materials. Microcapsules in tobacco products can be placed at the junction of the filter and the cigarette, or concentrated in the middle of the filter to form the filter itself. They play different roles during inhalation, while the flavoring substances retain their original flavor, effectively enhancing the aroma of the cigarette product, masking off-flavors, and improving the overall taste.

[0004] Patent CN210076559U discloses a hollow filter rod whose inner filter element fibers require thermoforming and must have several pressure-reducing channels (without filled fiber bundles); patent CN210382609U's hollow filter rod requires several pressure-reducing channels (without filled fiber bundles) in both the inner and outer layers; patent CN105342005A requires cellulose paper with multiple grooves. The hollow filter rods in these patents clearly have complex folding shapes for the formed paper, making them difficult to industrialize, especially difficult to form in a single process.

[0005] The present invention is proposed to solve the above problems. Summary of the Invention

[0006] This invention discloses a triangular filter rod with internal and external molded paper interspersed with filament bundles. By controlling the type and amount of filament bundles, such as using cellulose acetate filament bundles or polylactic acid filament bundles, a triangular filter rod with low suction resistance and good filtration effect can be prepared.

[0007] The technical solution of the present invention is as follows:

[0008] The first aspect of the present invention discloses a filter rod filled with triangular spacers of filaments. The triangular filter rod is cylindrical in appearance and is composed of an outer layer of outer forming paper W rolled into a cylinder W1, and an inner layer of inner forming paper N folded into a cylinder with an equilateral triangle N1 in cross-section along the axial direction of the cylinder W1. The three vertices of the triangle N1 are on the inner wall surface of the cylinder W1. The outer forming paper W and the inner forming paper N are filled with outer filaments S1, and the inner forming paper N is filled with inner filaments S2.

[0009] Preferably, the basis weight of the outer forming paper 1 is 30-40 g / m³. 2 .

[0010] Preferably, the basis weight of the internal forming paper 2 is 90-110 g / m³. 2 .

[0011] Preferably, triangle 21 is formed by folding two layers of inner forming paper 2.

[0012] Preferably, the denier of the outer filament bundle S1 is 3.9d and the total denier is 31000d.

[0013] Preferably, the denier of the inner yarn bundle S2 is 3.0d, and the total denier is 32000d. The denier of the outer yarn bundle is smaller than that of the inner yarn bundle.

[0014] Preferably, the outer forming paper W and / or the inner forming paper N are scented forming papers.

[0015] Preferably, the outer filament bundle S1 and / or the inner filament bundle S2 are scented filament bundles.

[0016] The second aspect of this invention discloses a method for preparing the filter rod with triangularly spaced filled filament bundles, characterized in that a one-time filter rod forming system is used;

[0017] The filter rod one-time forming system includes the following components: forming trumpet mouth C, outer forming paper conveyor belt 3W, inner forming paper conveyor belt 3N, outer filament conveyor belt 42, and inner filament conveyor belt 52; the forming trumpet mouth C includes an outer forming trumpet mouth 11 and an inner forming trumpet mouth 21, with the inner forming trumpet mouth 21 fitted inside the outer forming trumpet mouth 11; the outer forming trumpet mouth 11 is a cylindrical shape with a gradually decreasing radius; the inner forming trumpet mouth 21 has two layers, with the outer layer 211 being a cylindrical shape that gradually transitions from a circle to an equilateral triangle, and the inner layer 212 being a triangular prism shape with an equilateral triangle with a larger area at one end and a smaller area at the other end;

[0018] The forming method of the filter rod with triangular spaced filling filaments includes the following steps: The outer forming paper conveyor belt 3W conveys the outer forming paper W to the inlet of the forming flared nozzle C, where it is baked by the outer forming paper baking device 31 and then enters the cylinder of the outer forming flared nozzle 11 to be formed into a cylindrical shape WI. After being glued by the outer sealing glue device 33, it comes out from the outlet of the outer forming flared nozzle 11. At this time, the outer filament S1 conveyed by the outer filament conveyor belt 42 is fed into the outer forming paper W; at the same time, the inner forming paper conveyor belt 3N conveys the inner forming paper N to the inlet of the forming flared nozzle C, where it is baked by the inner forming paper baking device 32 and then enters between the outer layer 211 and the inner layer 212 of the inner forming flared nozzle 21, gradually forming into a cylindrical shape of an equilateral triangle N1. After being glued by the inner grouting device 33, the filter rod exits from the outlet of the inner forming horn nozzle 21. At this time, the inner filament bundle S2 conveyed by the inner filament bundle conveyor belt 52 is fed into the inner forming paper N. The cylindrical shape of the equilateral triangle N1 is nested with the cylinder WI exiting from the outer forming horn nozzle 11. The outer forming paper W and the inner forming paper N are filled with the outer filament bundle S1, and the inner forming paper N is filled with the inner filament bundle S2. After the filter rod is formed, it is glued by the adhesive device 35 to bond the three vertices of the triangle N1 to the inner wall of the cylinder W1. After being heated again by the heater 36 and cooled by the cooler 37, it is cut by the cutter 38 and output by the dividing roller 39, thus obtaining the filter rod filled with triangular interval filament bundles.

[0019] The prepared triangular-spaced filled fiber tow filter rod is used as base rod A. It is then combined with other filter rods B (such as pod filter rods, granule filter rods, and flavored filter rods) in a specific order and length ratio to prepare a binary composite filter rod with triangular-spaced filled fiber tow. Base rod A is then combined with filter rods B1 and B2 in a specific order and length ratio to prepare a ternary composite filter rod with triangular-spaced filled fiber tow. After the composite filter rod is attached to the cigarette in the cigarette rolling machine, the triangular-spaced filled fiber tow filter rod is placed at the lip end of the cigarette.

[0020] The beneficial effects of this invention are:

[0021] 1. This invention utilizes filament bundles of different denier and inner and outer forming papers with different basis weights to prepare paper-based filter rods with triangularly spaced filament bundles, thereby achieving different functions. For example, the middle filament bundle can be made of high denier, while the outer space can be made of low denier filament bundles. This can improve the low filtration permeability of the middle filament bundle and enhance the feel of the filter, while the outer space can improve filtration efficiency. In contrast, hollow filter rods obtained by existing methods cannot be filled with filament bundles due to thermoplastic molding. Therefore, they cannot utilize existing fragrance technology for differentiated processing, nor can they achieve the filtration function of hollow filter rod segments.

[0022] 2. This invention independently designed and manufactured a shaped flared nozzle. The shaped flared nozzle includes an outer shaped flared nozzle and an inner flared nozzle, with the inner flared nozzle nestled inside the outer shaped flared nozzle. The outer shaped flared nozzle is a cylindrical shape with a gradually decreasing radius. The inner flared nozzle has two layers: the outer layer is a cylindrical shape that gradually transitions from a circle to an equilateral triangle, and the inner layer is a triangular prism with one end being an equilateral triangle with a larger area and the other end being an equilateral triangle with a smaller area. The shaped flared nozzle of this invention easily shapes the inner and outer forming papers into the desired shape in one step.

[0023] 3. The intermittent filling technique of this invention, combined with the special areas formed by the separation and bonding of inner and outer forming paper, can achieve a special filtration effect on cigarette smoke, enhance the coordination and matching of the filament bundle, and improve the functional value of the filter rod. Compared with single-filament filling, the filament bundle filtration effect is more coordinated, and it also avoids the singleness of the filament bundle or filtration structure and function of filter rods such as coaxial filter rods and hollow filter rods.

[0024] 4. In this invention, the inner and outer layers of forming paper are bonded together, and different filament bundles are filled between the inner and outer layers of forming paper. This is different from the current hollow structure inside the hollow filter rod in terms of the position and mechanism of flue gas flow. It can better gather the flue gas, making the flue gas softer and more delicate, with a smooth and cohesive feel, and a rounded and astringent taste.

[0025] 5. This invention utilizes the inner and outer forming paper layers filled with different filaments. The special internal connection structure of the inner and outer forming paper, combined with the fragrance addition of the forming paper and the inner filaments, can better exert the fragrance addition effect of the filaments, which is more conducive to the accumulation of cigarette aroma, improves the aroma quality of cigarettes, strengthens the aroma quantity, and can effectively improve the sensory quality of cigarettes. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the cross-section of the fully hollow triangular filter rod perpendicular to the central axis of the filter rod according to the present invention.

[0027] Figure 2 This is a schematic diagram of the molded horn nozzle of the present invention.

[0028] Figure 3 This is a schematic diagram of the internally formed horn nozzle of the present invention.

[0029] Figure 4 This is a schematic diagram of the filter rod one-time molding system of the present invention.

[0030] The attached figures are labeled as follows: 11, outer forming bell mouth; 111, fixing point; 21, inner forming bell mouth; 211, outer layer; 212, inner layer; 3W, outer forming paper conveyor belt; 3N, inner and outer forming paper conveyor belts; 31, outer forming paper baking device; 32, inner forming paper baking device; 33, inner overlap adhesive device; 34, outer overlap adhesive device; 35, adhesive device; 36, heater; 37, cooler; 38, cutter; 39, separating roller; 41, outer filament bundle; 42, outer filament bundle conveyor belt; 43, outer additive box; 51, inner filament bundle; 52, inner filament bundle conveyor belt; 53, inner additive box; W, outer forming paper; N, inner forming paper; W1, cylinder; N1, triangle; C, forming bell mouth; S1, outer filament bundle; S2, inner filament bundle. Detailed Implementation

[0031] The present invention will be further described below through embodiments, but is not limited to these embodiments. Experimental methods not specifically described in the embodiments generally use conventional conditions and conditions described in the manual, or conditions recommended by the manufacturer. The general equipment, materials, reagents, etc., used are all commercially available unless otherwise specified. The raw materials used in the following embodiments and comparative examples are all commercially available.

[0032] like Figure 1 As shown, this invention discloses a filter rod with triangularly spaced filling filament bundles. The triangular filter rod is cylindrical in appearance and consists of an outer forming paper W rolled into a cylinder W1, and an inner forming paper N folded into a cylinder with an equilateral triangle N1 in cross-section along the axial direction of the cylinder W1. The three vertices of triangle N1 are located on the inner wall of the cylinder W1. An outer filament bundle S1 is filled between the outer forming paper W and the inner forming paper N, and an inner filament bundle S2 is filled inside the inner forming paper N. The basis weight of the outer forming paper 1 is 30-40 g / m³. 2 The basis weight of the inner forming paper 2 is 90-110 g / m³. 2 Triangle 21 is formed by folding two layers of inner forming paper 2. The denier of the outer yarn bundle S1 is 3.9d, and the total denier is 31000d. The denier of the inner yarn bundle S2 is 3.0d, and the total denier is 32000d.

[0033] The method for preparing a filter rod with triangularly spaced filled filament bundles according to the present invention uses a filter rod one-time forming system;

[0034] like Figure 4 As shown, the filter rod one-time forming system includes the following components: forming bell mouth C, outer forming paper conveyor belt 3W, inner forming paper conveyor belt 3N, outer filament conveyor belt 42, and inner filament conveyor belt 52; as Figure 2As shown, the molded flared nozzle C includes an outer molded flared nozzle 11 and an inner molded flared nozzle 21. The inner molded flared nozzle 21 is fitted inside the outer molded flared nozzle 11, and the outer molded flared nozzle 11 and the inner molded flared nozzle 21 are fixed together by a fixing point 111; as shown Figure 3 As shown, the outer flared nozzle 11 is a cylindrical shape with a gradually decreasing radius; the inner flared nozzle 21 has two layers, the outer layer 211 is a cylindrical shape that gradually transitions from a circle to an equilateral triangle, and the inner layer 212 is a triangular prism shape with an equilateral triangle with a larger area at one end and an equilateral triangle with a smaller area at the other end.

[0035] The method for forming filter rods with triangularly spaced filled filament bundles includes the following steps: using, for example... Figure 4 The filter rod one-time forming system shown has the following steps: the outer forming paper conveyor belt 3W conveys the outer forming paper W to the inlet of the forming flared nozzle C, where it is baked by the outer forming paper baking device 31 and then enters the cylinder of the outer forming flared nozzle 11 to be formed into a cylindrical shape WI. After being glued by the outer sealing glue device 33, it exits from the outlet of the outer forming flared nozzle 11. At this time, the outer filament bundle S1 conveyed by the outer filament bundle conveyor belt 42 is fed into the outer forming paper W. Simultaneously, the inner forming paper conveyor belt 3N conveys the inner forming paper N to the inlet of the forming flared nozzle C, where it is baked by the inner forming paper baking device 32 and then enters between the outer layer 211 and the inner layer 212 of the inner forming flared nozzle 21. It gradually forms into a cylindrical shape of an equilateral triangle N1 and is then glued by the inner sealing glue device 33. After the glue is applied to the filter rod, it comes out from the outlet of the inner forming horn nozzle 21. At this time, the inner filament bundle S2 conveyed from the inner filament bundle conveyor belt 52 is fed into the inner forming paper N. The cylindrical shape of the equilateral triangle N1 is nested with the cylinder WI coming out from the outlet of the outer forming horn nozzle 11. The outer forming paper W and the inner forming paper N are filled with the outer filament bundle S1, and the inner forming paper N is filled with the inner filament bundle S2. After the filter rod is formed, the glue is applied by the adhesive device 35 to bond the three vertices of the triangle N1 to the inner wall surface of the cylinder W1. After being heated again by the heater 36, it is cooled and shaped by the cooler 37. After being cut by the cutter 38, it is output by the dividing roller 39, thus obtaining the filter rod with triangular interval filled with filament bundle.

[0036] The prepared triangular-spaced filled fiber tow filter rod is used as base rod A. It is then combined with other filter rods B (such as pod filter rods, granule filter rods, and flavored filter rods) in a specific order and length ratio to prepare a binary composite filter rod with triangular-spaced filled fiber tow. Base rod A is then combined with filter rods B1 and B2 in a specific order and length ratio to prepare a ternary composite filter rod with triangular-spaced filled fiber tow. After the composite filter rod is attached to the cigarette in the cigarette rolling machine, the triangular-spaced filled fiber tow filter rod is placed at the lip end of the cigarette.

[0037] A comparison of the operation and cigarette results of the method of the present invention with those of existing technologies:

[0038] Production methods Fragrance Aroma Softness and delicacy rounded feel Convergence Cigarette sensory quality The method of the present invention 15 16.5 5 5 5 92.5 Existing Techniques 13 14.5 3.5 3.5 3 90.0

[0039] As can be seen from the above comparison, the composite filter rod prepared by the method of the invention, which uses a triangularly spaced filter rod filled with filaments as the base rod, produces cigarettes with a more concentrated, smoother, and more delicate smoke. The smoke is smoother and more cohesive, the taste is more rounded and astringent, and the aroma quality and quantity are increased, which can effectively improve the sensory quality of cigarettes.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing a filter rod filled with triangularly spaced filament bundles, characterized in that, A filter rod forming system is used; the filter rod with triangular spaced filling filaments is cylindrical in appearance, and its composition is that the outer layer is an outer forming paper (W) rolled into a cylinder (W1), and the inner layer is an inner forming paper (N) folded into a cylinder with an equilateral triangle (N1) in cross-section along the axial direction of the cylinder (W1); and the three vertices of the triangle (N1) are on the inner wall surface of the cylinder (W1); wherein, the outer forming paper (W) and the inner forming paper (N) are filled with outer filaments (S1), and the inner forming paper (N) is filled with inner filaments (S2). The filter rod one-time forming system includes the following components: forming trumpet nozzle (C), outer forming paper conveyor belt (3W), inner forming paper conveyor belt (3N), outer filament conveyor belt (42) and inner filament conveyor belt (52); the forming trumpet nozzle (C) includes an outer forming trumpet nozzle (11) and an inner forming trumpet nozzle (21), the inner forming trumpet nozzle (21) being fitted inside the outer forming trumpet nozzle (11); the outer forming trumpet nozzle (11) is a cylindrical shape with a gradually decreasing radius; the inner forming trumpet nozzle (21) has two layers, the outer layer (211) is a cylindrical shape that gradually transitions from a circle to an equilateral triangle, and the inner layer (212) is a triangular prism shape with an equilateral triangle with a larger area at one end and an equilateral triangle with a smaller area at the other end; The forming method of the filter rod with triangular interspersed filament bundles includes the following steps: The outer forming paper conveyor belt (3W) conveys the outer forming paper (W) to the inlet of the forming horn mouth (C), where it is baked by the outer forming paper baking device (31) and then enters the cylinder of the outer forming horn mouth (11) to be formed into a cylindrical shape (W1). After being glued by the outer sealing glue device (33), it comes out from the outlet of the outer forming horn mouth (11). At this time, the outer filament bundle (S1) conveyed from the outer filament bundle conveyor belt (42) is sent into the outer forming paper (W); at the same time, the inner forming paper conveyor belt (3N) conveys the inner forming paper (N) to the inlet of the forming horn mouth (C), where it is baked by the inner forming paper baking device (32) and then enters between the outer layer (211) and the inner layer (212) of the inner forming horn mouth (21), gradually forming into a cylindrical shape of an equilateral triangle (N1), and then... After the inner sealing adhesive device (33) applies adhesive, it comes out from the outlet of the inner forming horn mouth (21); at this time, the inner filament bundle (S2) conveyed from the inner filament bundle conveyor belt (52) is fed into the inner forming paper (N); the cylindrical shape of the equilateral triangle (N1) is nested with the cylinder (W1) coming out from the outlet of the outer forming horn mouth (11), the outer forming paper (W) and the inner forming paper (N) are filled with the outer filament bundle (S1), and the inner forming paper (N) is filled with the inner filament bundle (S2); after the filter rod is formed, the adhesive device (35) applies adhesive and the three vertices of the triangle (N1) are bonded to the inner wall surface of the cylinder (W1), and after being heated again by the heater (36) and cooled and formed by the cooler (37), it is cut by the cutter (38) and output by the dividing roller (39), thus obtaining the filter rod with the triangular interval filled with filament bundle.

2. The preparation method according to claim 1, characterized in that, The basis weight of the out-formed paper (W) is 30-40 g / m². 2 .

3. The preparation method according to claim 1, characterized in that, The basis weight of the internal forming paper (N) is 90-110 g / m³. 2 .

4. The preparation method according to claim 1, characterized in that, The triangle (N1) is formed by folding two layers of inner forming paper (N).

5. The preparation method according to claim 1, characterized in that, The denier of the outer yarn bundle (S1) is 3.9d and the total denier is 31,000d.

6. The preparation method according to claim 1, characterized in that, The denier of the inner filament bundle (S2) is 3.0d, and the total denier is 32,000d.

7. The preparation method according to claim 1, characterized in that, The outer forming paper (W) and / or the inner forming paper (N) are scented forming papers.

8. The preparation method according to claim 1, characterized in that, The outer filament bundle (S1) and / or the inner filament bundle (S2) are scented filament bundles.

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