Coaxial cigarette bar and coaxial cigarette

Abstract

The utility model relates to the technical field of tobaccos, in particular to a coaxial cigarette bar and a coaxial cigarette. The coaxial cigarette bar comprises an inner core and an outer core, wherein the inner core comprises a first content and a first wrapping piece wrapping the first content; a second content and a second wrapping piece wrapping the second content are arranged on the periphery of the inner core; the first wrapping piece and the second wrapping piece are both of a cylindrical structure and are coaxially arranged. According to the utility model, through ingenious design and optimization, the beneficial effects of avoiding the quality problem of loose ends of cigarettes, reducing the product cost and the like are also realized, and the beneficial effects of reducing the equipment cost, greatly improving the efficiency, realizing perfuming and charging on an inner core wrapping material, remarkably improving the product quality and the like are further realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the tobacco technical field, concretely relates to a coaxial tobacco strip and coaxial cigarette. BACKGROUND

[0002] In the tobacco technical field, the conventional technology is to wrap tobacco shreds with cigarette paper and use adhesive to adhere, then cut into specified length, and then use filter rods, tipping paper and adhesive to make a complete cigarette.

[0003] The engineers in the field have made innovative attempts to reduce costs in view of the inherent defects of the conventional technology. That is, after wrapping tobacco shreds with cigarette paper and using adhesive to adhere, a layer of tobacco shreds and a layer of cigarette paper are wrapped in turn on the outer layer, and the cigarette paper is adhered with adhesive to make a tobacco strip, then the tobacco strip is cut into specified length, and finally a complete cigarette is made by using filter rods, tipping paper and adhesive. For example, the application number CN99124897. However, this technical solution needs multiple sets of devices to be used in coordination in order to achieve synchronization of the high-density areas of the inner and outer tobacco shreds, thereby avoiding the quality problem of empty head due to loose and falling tobacco shreds at the ignition end of the tobacco strip. These devices include but are not limited to devices for increasing the density of tobacco shreds, i.e. cutting discs; detection devices for measuring the higher density areas of the inner and outer tobacco shreds; correction devices for synchronizing the high-density areas of the inner and outer tobacco shreds, etc. In addition, both the inner and outer tobacco shreds need to be wrapped with adhesive and cigarette paper. Similar products have never appeared on the market.

[0004] Due to the characteristics of the process, the above-mentioned solution has the following technical defects or limitations:

[0005] First, in order to avoid the quality problem of empty head due to a large amount of loose and falling tobacco shreds at the ignition end of the tobacco strip, the high-density areas of the inner and outer tobacco shreds need to be synchronized in a specific area of the tobacco strip. However, both the cigarette paper and its contents are elastic materials, and under the condition of high-speed operation of the cigarette manufacturing equipment, the relative positions of the high-density areas of the inner and outer tobacco shreds cannot be maintained stable and will change from time to time. Therefore, correction devices need to be set and frequently intervene in the cigarette production process. At each intervention of the correction device, the produced tobacco strip is a waste product, and the production efficiency is extremely low. Even worse, the production equipment is forced to frequently stop and start, and the normal service life of the equipment is greatly reduced.

[0006] Second, in order to ensure the operation of the above-mentioned correction device, a tobacco shred density detection device must be configured to observe the distribution of the high-density areas of tobacco shreds in the inner and outer tobacco shreds in real time, which lengthens the cigarette making process and increases unnecessary equipment costs.

[0007] Thirdly, in order to ensure the local high density area of the inner tobacco rod, a device for increasing the density of tobacco is needed, i.e. the cutting disc, which leads to the lengthening of the cigarette production process and the increase of unnecessary equipment cost.

[0008] Fourthly, the prior art needs to use adhesive to bind the inner tobacco rod made of cigarette paper, then wrap the inner tobacco rod with tobacco and cigarette paper in sequence, and use adhesive to bind the cigarette rod made of cigarette paper, then cut the cigarette rod into a specified length, and use tipping paper, filter rod and adhesive to obtain a complete coaxial cigarette. However, in this process, no coating for improving taste or avoiding quality problems is added to the inner tobacco rod, resulting in a technical gap.

[0009] Fifthly, the complete cigarette made by using the conventional technology will have the phenomenon of "foaming" when the wrapping material, i.e. the cigarette paper, meets the weak acid liquid. The principle is that the acid liquid reacts with calcium carbonate in the cigarette paper to produce carbon dioxide in the cigarette paper layer, which is a product quality problem that must be eliminated. Therefore, the technical means of coating the weak acid coating on the cigarette paper cannot be used on the complete cigarette made by using the conventional technology to achieve the technical effect of changing the pH value of the smoke gas during smoking and greatly improving the taste. Content of the utility model

[0010] The utility model aims at the defects of the conventional cigarette and the coaxial cigarette production technology, and provides a coaxial cigarette rod, a coaxial cigarette and a production method thereof on the basis of following the existing technical process, so that the coaxial cigarette made by using the technology can greatly simplify and optimize the production process on the basis of maximizing the use of the existing equipment, and has stable and efficient production quality. In addition, the coaxial cigarette can also avoid the empty head quality problem caused by the large amount of loose tobacco falling off at the cutting position of the cigarette rod and reduce the product cost, and has the new beneficial effect of improving the product quality and the smoking taste by adding coating or material on the inner core.

[0011] In order to achieve the above-mentioned purpose of the application, the first aspect of the application discloses a coaxial cigarette rod, which comprises an inner core, wherein the inner core comprises first content and a first wrapping member wrapping the first content.

[0012] The outer periphery of the inner core is provided with second content and a second wrapping member wrapping the second content.

[0013] The first wrapping member and the second wrapping member are both cylindrical structures and are coaxially arranged.

[0014] Preferably, at least one end area of the inner wall of the first wrapping member is provided with a layer of shaping material.

[0015] and / or, at least one end region of the outer wall of the first wrapper is provided with a layer of a shaping material;

[0016] and / or, at least one end region of the surface of the first content is provided with a layer of a shaping material.

[0017] Preferably, the at least one end region refers to one or both ends of the coaxial tobacco rod. When the at least one end region refers to only one end of the coaxial tobacco rod, the end is the distal lip end of the coaxial tobacco rod.

[0018] The distal lip end is the end of the coaxial tobacco rod that is distal to the user's lips when the user smokes after the coaxial tobacco rod is combined with the filter rod.

[0019] The proximal lip end is the end of the coaxial tobacco rod that is proximal to the user's lips when the user smokes after the coaxial tobacco rod is combined with the filter rod.

[0020] The coaxial tobacco rod has a distal lip end and a proximal lip end. Similarly, the first wrapper, the first content, the filter rod, and the cigarette also have a distal lip end and a proximal lip end.

[0021] Preferably, the first content is a first smoking material, fuel particles, or a mixture of the two; and the second content is a second smoking material.

[0022] The first wrapper is paper or a metal foil; and the second wrapper is paper or a metal foil.

[0023] The fuel particles can be carbon particles or other solid fuel particles.

[0024] When the first content contains fuel particles, lower product cost can be achieved by partially replacing the smoking material; higher heat can be provided during combustion than the smoking material, allowing the aroma substances of the second content to be more fully released after being heated, thereby improving product quality and smoking taste; in addition, the generation of harmful substances such as tar and nicotine can be reduced.

[0025] Preferably, the quality of the first smoking material is lower than that of the second smoking material. The price of the first smoking material is lower than that of the second smoking material. In this way, product cost can be reduced without significantly affecting smoking quality.

[0026] Preferably, the inner wall of the first wrapper is provided with a layer of a shaping material or is not provided with a layer of a shaping material in the non-end region;

[0027] and / or, the outer wall of the first wrapper is provided with a layer of a shaping material or is not provided with a layer of a shaping material in the non-end region;

[0028] and / or, the surface of the first content is provided with a layer of a shaping material or is not provided with a layer of a shaping material in the non-end region;

[0029] The thickness of the layer of setting material in the non-end region is equal to or less than the thickness of the layer of setting material in the end region.

[0030] Preferably, the type of the layer of setting material in different positions is the same or different. Different positions refer to the inner wall of the first wrapper, the outer wall of the first wrapper, the surface of the first content, or the near-lip end, the far-lip end or the non-end of the above items.

[0031] Preferably, the layer of setting material is selected from one or more of the following: a layer of setting paint, a layer of expanded plant fibers or a layer of flavor.

[0032] Preferably, the near-lip end region on the inner wall / outer wall of the first wrapper or the surface of the first content can also be provided with a layer of setting material or without a layer of setting material.

[0033] The thickness of the layer of setting material in the near-lip end region is equal to or less than the thickness of the layer of setting material in the far-lip end region.

[0034] In order to avoid the far-lip end of the cigarette being empty or the smoking material falling off, a layer of setting material can be provided in the far-lip end region. The near-lip end region does not need to worry about the cigarette being wrapped into the cigarette after the abutment of the filter rod, so the near-lip end region can not be provided with a layer of setting material. Of course, since the near-lip end region is the cutting position of the second cutting, in order to avoid the emptying or the smoking material falling off during cutting, a layer of setting material can also be provided but the thickness is less than the thickness of the layer of setting material in the far-lip end region.

[0035] The end region is the far-lip end or the near-lip end. The non-end region is the middle region excluding the far-lip end and the near-lip end. The non-end region does not need to be provided with a layer of setting material because there is no problem of emptying or the smoking material falling off. Of course, a layer of setting material can also be provided in the non-end region to enhance the tightness of the tobacco. The thickness of the layer of setting material can be less than the thickness of the layer of setting material in the end region, or less than the thickness of the layer of setting material in the far-lip end region.

[0036] The second aspect of the present application provides a coaxial cigarette, comprising: a coaxial tobacco rod of the first aspect and a filter rod abutting each other, and the far-lip end of the coaxial tobacco rod is provided with a layer of setting material.

[0037] Of course, the near-lip end of the coaxial tobacco rod, or the part located between the far-lip end and the near-lip end, can also be provided with a layer of setting material.

[0038] The filter rod abuts the near-lip end of the coaxial tobacco rod.

[0039] Preferably, the near-lip end of the coaxial tobacco rod is the end close to the user's lips when the user smokes after the combination of the coaxial tobacco rod and the filter rod.

[0040] The third aspect of the present application provides a method for manufacturing a double-length coaxial cigarette rod, comprising the following steps:

[0041] Step (1), manufacturing an inner core: adding a first content in an unfolded first wrapping member, adding a shaping material to at least a part of the inner wall of the first wrapping member and / or the surface of the first content before wrapping the first content with the first wrapping member to form a long-stripe inner core, obtaining a shaping material layer, and then wrapping the first content with the first wrapping member to obtain the inner core;

[0042] Alternatively, adding a first content in an unfolded first wrapping member, then wrapping the first content with the first wrapping member to obtain the inner core, and then adding a shaping material to at least a part of the outer wall of the first wrapping member to obtain a shaping material layer on the outer wall of the first wrapping member, and the whole obtained is the inner core;

[0043] Alternatively, adding a first content in an unfolded first wrapping member, adding a shaping material to at least a part of the inner wall of the first wrapping member and / or the surface of the first content before wrapping the first content with the first wrapping member to form a long-stripe inner core, obtaining a shaping material layer, and then wrapping the first content with the first wrapping member to obtain the inner core, and then adding a shaping material to at least a part of the outer wall of the first wrapping member to obtain a shaping material layer on the outer wall of the first wrapping member, and the whole obtained is the inner core;

[0044] The added length of the shaping material covers the to-be-cut position of the first cutting of the long cigarette rod;

[0045] The types of the shaping material layers at different positions are the same or different;

[0046] Step (2), manufacturing a cigarette rod: wrapping the inner core prepared in step (1) with a second content, and then wrapping the second content with a second wrapping member in cooperation with an adhesive to obtain a long cigarette rod;

[0047] Step (3), cutting: performing the first cutting on the long cigarette rod of step (2) at the to-be-cut position to obtain a double-length coaxial cigarette rod with a shaping material layer at at least two end regions.

[0048] Preferably, the working time for adding the shaping material and the interval time for adding the shaping material meet the following mathematical model:

[0049] Formula one: t n+1 -t n＝ T+Δt; T=the added length of the shaping material / Cυ;

[0050] Formula two:

[0051]

[0052] wherein, T is the working time length of each addition of the shaping material; t n is the starting time of each addition of the shaping material; Δt is the interval time length between the starting times of the adjacent two additions of the shaping material; L is the length of the double-length coaxial tobacco rod; Cυ is the linear speed of the long tobacco rod or the inner core; n is the value of the number of additions.

[0053] The distance between the shaping material addition device and the first cutting device of the long tobacco rod, and the relationship between the length of the double-length coaxial tobacco rod and the linear speed of the long tobacco rod are configured as:

[0054] So that when the shaping material addition device and the first cutting device of the long tobacco rod work at the same frequency, the shaping material addition length sequentially and one by one covers each cutting position of the first cutting of the long tobacco rod.

[0055] In actual operation, according to the length of the double-length coaxial tobacco rod, the distance between the shaping material addition device and the first cutting device of the long tobacco rod, and according to the production speed, the linear speed of the long tobacco rod reaches a specified value to ensure that the shaping material addition length sequentially and one by one covers each cutting position of the first cutting of the long tobacco rod. Preferably, the distance between the shaping material addition device and the first cutting device of the long tobacco rod is an integer multiple of the length of the double-length coaxial tobacco rod, and the linear speed of the long tobacco rod is that the movement distance of the long tobacco rod per minute is equal to an integer multiple of the length of the double-length coaxial tobacco rod. In this way, the addition device and the first cutting device can be stably worked at the same frequency, and the shaping material addition length can sequentially and one by one cover each cutting position of the first cutting of the long tobacco rod.

[0056] The fourth aspect of the present application provides a method for manufacturing a coaxial tobacco rod, which cuts the double-length coaxial tobacco rod obtained in the third aspect at a center position to obtain a coaxial tobacco rod.

[0057] The fifth aspect of the present application provides a method for manufacturing a coaxial cigarette, which comprises: cutting the double-length coaxial tobacco rod obtained in the third aspect at a center position, adding a double-length filter rod in the middle, and rolling the cut double-length coaxial tobacco rod and the double-length filter rod by double-length tipping paper and adhesive to obtain a double-length coaxial cigarette; and then cutting the double-length coaxial cigarette at a third center position to obtain two complete coaxial cigarettes, each of which comprises a double-length coaxial tobacco rod and a double-length filter rod, and a double-length tipping paper.

[0058] The addition method of the shaping material includes but is not limited to intermittent or continuous or variable application amount, etc., and preferably the application amount is increased as needed before and after the possible cutting position of the first cutting of the long tobacco rod.

[0059] Another object of the present application is to optimize or reduce the process conditions by the addition of a setting material.

[0060] Preferably, the setting material is selected from one or more of a tobacco curing setting agent, an expanded plant fiber, an expanding agent or a flavoring liquid. The tobacco curing setting agent is preferably an acidic tobacco curing setting agent. The flavoring liquid is preferably an acidic flavoring liquid. The tobacco curing setting agent forms a setting coating layer after setting.

[0061] When the setting material is an expanded plant fiber, a plant fiber soaked with liquid carbon dioxide can be used to take advantage of the cell expansion of the plant fiber caused by the evaporation of carbon dioxide at room temperature to produce an expansion effect, making the tobacco more compact, and avoiding the quality problem of loose tobacco falling off at the position of cutting the long tobacco rod. When the setting material is an expanded plant fiber, the expanded plant fiber can only be added to the inner wall of the first wrapper or the surface of the first content before the inner core is formed.

[0062] When the setting material is an expanding agent, the expanding agent is preferably added to the inner wall of the first wrapper or the surface of the first content before the inner core is formed. The expanding agent causes the tobacco to expand, making the tobacco more compact, and avoiding the quality problem of loose tobacco falling off at the position of cutting the long tobacco rod. The expanding agent can specifically use sodium bicarbonate or dry ice particles or similar substances that can cause the tobacco to expand.

[0063] When the setting material is a tobacco curing setting agent, such as modified latex, the tobacco is cured and the processing strength is improved, thereby avoiding the quality problem of loose tobacco falling off at the position of cutting the tobacco rod. When the setting material is a tobacco curing setting agent, the tobacco curing setting agent is preferably added to the inner wall of the first wrapper or the surface of the first content before the inner core is formed.

[0064] When the setting material is a flavoring liquid, the moisture content of the tobacco can also be increased to improve the toughness of the tobacco, thereby avoiding the phenomenon of loose tobacco falling off at the position of cutting the tobacco rod. Therefore, water can also be selected as the setting material. The flavoring liquid of course has the additional effect of providing aroma and coordinating smoke.

[0065] The flavoring liquid or water can be directly added to the surface of the first content, or can be added to the inner wall or outer wall of the first wrapper to penetrate the surface of the first content and play a role.

[0066] In summary, the role of the sizing material is: 1. Avoiding the phenomenon of empty head due to the loose and falling of tobacco in the position of cutting the tobacco rod by adding, but not limited to, tobacco curing and sizing agent (such as latex) or locally increasing the moisture of tobacco, or bulking agent, etc. 2. Increasing the beneficial effect: the pH value of acidic tobacco curing and sizing agent or acidic flavor liquid is weakly acidic, which can change the pH value of smoke during smoking, enrich the aroma, and greatly improve the taste. In addition, when the tobacco curing and sizing agent or acidic flavor is added to the inner wall or outer wall of the first wrapping member, and the first wrapping member is cigarette paper, the shielding and covering effect of the second content makes the phenomenon of "foaming" of the inner core cigarette paper due to the weakly acidic liquid become a problem that does not need to be concerned.

[0067] The main role of the first content is: 1. It can provide heat during smoking, 2. It can replace high-grade tobacco to achieve the purpose of reducing cost, 3. When the first content contains carbon particles, it can reduce the generation of harmful substances such as tar and nicotine. The first content can be low-grade tobacco, or low-grade tobacco mixed with carbon particles, or solid fuel with high combustion heat value and no taste or odor. Among them, low-grade tobacco or carbon particles are preferred.

[0068] The main role of the second content is to provide high-quality taste and flavor during smoking. The second content preferably includes, but is not limited to, high-grade tobacco of flue-cured tobacco type, cigar type, burley, air-cured tobacco, sun-cured tobacco, etc.

[0069] The main role of the wrapping member is to wrap the first content or the second content, and its material can be paper or metal, such as cigarette paper or aluminum foil. Among them, the first wrapping member is preferably ordinary wood pulp cigarette paper or aluminum foil with low price. The second wrapping member is preferably all-muslin cigarette paper.

[0070] Compared with the prior art, the present application reduces or optimizes the existing process conditions, and after meeting the basic functional requirements, it also produces more beneficial results, as follows:

[0071] (1) The present application avoids the phenomenon of empty head due to the loose and falling of tobacco in the position of cutting the tobacco rod by adding sizing material before and after the cutting position of the tobacco rod. The present application achieves the purpose of not using a device for increasing the density of tobacco during the process of making the inner core, i.e. reducing the disc, thereby greatly optimizing and simplifying the existing process conditions, significantly reducing the cost of equipment, and reducing the production cost due to the shortening of the process flow.

[0072] (2) Using the scheme of the present application, the inner core or inner tobacco rod does not need to increase the density of tobacco in the local area as in the prior art, so there is no need for tobacco density detection, and thus the tobacco density detection device can be completely eliminated. The existing process conditions are greatly optimized and simplified, which significantly reduces the cost of equipment and improves the production efficiency.

[0073] (3) Using the method, the inner core or inner tobacco rod does not need to increase the density of the tobacco in the local area as in the prior art, and therefore there is no need to synchronize the high-density tobacco area between the inner core or inner tobacco rod and the second content or outer tobacco rod, and the high-density tobacco area correction device can be completely cancelled, so that the existing process conditions are greatly optimized and simplified, and the process condition design is more in line with the fact that the cigarette paper and its contents are elastic materials, and the relative positions of the high-density areas of the inner and outer tobacco rods cannot remain unchanged and change at all times. Thus, beneficial effects are achieved: significantly reducing equipment costs, extending equipment life by not having to frequently stop and start, improving production efficiency by shortening the process flow, and the like.

[0074] (4) In terms of improving the taste of cigarette smoking, the added shaping material can have very beneficial effects on product quality improvement in multiple directions. For example, adding weakly acidic flavor liquid or tobacco solidification agent for changing the pH value of smoke during smoking, enriching aroma, and improving smoke taste, such as citric acid, tomato extract, acidic latex, etc. can completely ignore the reaction between acidic flavor liquid and calcium carbonate in cigarette paper, which causes the "blistering" quality problem of cigarette paper, thereby solving the industry-wide problem of not being able to add weakly acidic substances to cigarette paper to improve smoke taste.

[0075] (5) The scheme of the present application can greatly reduce the cost of the product. Using the method, the first content can be low-grade tobacco, or low-grade tobacco mixed with carbon particles, or solid fuel with high combustion heat value and no taste or odor. While reducing the production of harmful substances such as tar, it also reduces the cost of the cigarette product, making the cigarette product produced using the technology of the present application have stronger market competitiveness and commodity profitability. BRIEF DESCRIPTION OF DRAWINGS

[0076] The content of the present application will be further described below in conjunction with the drawings and examples of the specification.

[0077] Figure 1 is a cross-sectional view of the coaxial cigarette structure of the present application;

[0078] Figure 2 is a schematic diagram of the first coaxial long tobacco rod rolling process of the present application;

[0079] Figure 3 is a schematic diagram of the second coaxial long tobacco rod rolling process of the present application;

[0080] Figure 4 is a graph of the relationship between the amount of shaping material added and time of the present application;

[0081] Figure 5 is a schematic diagram of the manufacturing steps from a long tobacco rod to a coaxial cigarette of the present application.

[0082] Figure 1, a one-length filter rod; 1-1, a two-length filter rod; 2, a one-length tipping paper; 2-2, a two-length tipping paper; 3, a second wrapping member; 4, a second content; 5, a first wrapping member; 6, a first content; 7, an adding device; 8, a shaping material; 9, a two-length coaxial tobacco rod; 9-1, a one-length coaxial tobacco rod; 11, a long tobacco rod; 12, a first cutting device (cutter); 13, a two-length coaxial cigarette; 14, a complete coaxial cigarette; 15, a second cutting device (cutter); 16, a third cutting device (cutter). DETAILED DESCRIPTION

[0083] In order to better understand and implement the patent described in the present application, the following specific embodiments are provided.

[0084] Example 1

[0085] 1. Making the inner core: 25g of 60Cu wood pulp cigarette paper is used as the first wrapping member 5, and artificial tobacco sheet mixed with activated carbon is used as the first content 6. Before the long-stripped inner core is made by wrapping the first content 6 with the first wrapping member 5, the interval time calculated according to Formula One and Formula Two is added, as shown in the following formula: Figure 4 The modified emulsion with a pH value of 6.5 is added to the surface of the first content 6 at a region 3mm before and after the cutting position, and the addition amount P2 = 25mg / mm, as shown in the following formula: Figure 3 The addition amount P1 = 5mg / mm at other regions of the surface of the first content 6, which can be added by another adding device. The circumference of the long-stripped inner core is 19mm.

[0086] The following describes the addition characteristics of the modified emulsion with P2 addition amount:

[0087] In order to meet the production speed requirement of 4000 coaxial cigarettes per minute, the inner core linear speed is 216m / min, and the length L of the two-length cigarette is 108mm. According to Formula One and Formula Two, the P2 addition working time T is 0.0017 seconds, and the interval time Δt between the midpoints of two adjacent P2 addition works is 0.03 seconds. The addition length is 6mm. T = 6mm / (216m / min) = 0.0017s Δt = 108mm / (216m / min) = 0.03s. The distance between the P2 adding device 7 and the first cutting position 12 is 540mm, which is 10 times the length of the long tobacco rod, i.e. 5 times the length of the two-length tobacco rod. The inner core linear speed, which is also the linear speed of the long tobacco rod, is equal to 2000 times the length of the two-length tobacco rod per minute. In this way, the adding device 7 and the first cutting device 12 can work stably at the same frequency.

[0088] 2. Making long tobacco rod: 30g 60Cu wood pulp cigarette paper as wrapping material 3, high-quality tobacco as second content 4, the second content 4 is wrapped around the inner core, and then wrapped with wrapping material 3 and adhesive. The circumference of the long tobacco rod 11 obtained is 24.3mm. As shown in Figure 3

[0089] 3. The long tobacco rod 11 made in the previous step is cut into two long coaxial tobacco rods 9 of 108mm in length using the first cutting knife 12 at the cutting position, and then the two long coaxial tobacco rods 9 are cut in the middle using the second cutting knife 15 to add a 60mm long filter rod 1-1 in the middle and roll with 72mm long tipping paper 2-2 and adhesive, obtaining two long coaxial cigarettes 13; then the long coaxial cigarettes 13 are cut in the middle using the third cutting knife 16, obtaining two complete coaxial cigarettes 14, which contain a 54mm long coaxial tobacco rod 9-1 and a 30mm long filter rod 1, and 36mm long tipping paper 2. As shown in Figure 1 5

[0090] Example 2

[0091] 1. Making inner core: 24g 70Cu wood pulp cigarette paper as wrapping material 5, low-grade flue-cured tobacco as first content 6, after the long strip-shaped inner core is wrapped with the first content 6 using the wrapping material 5, the interval time is calculated according to Formula 1 and Formula 2, as shown in Figure 4 The tomato extract with a pH value of 6 is added to the outer wall of the first wrapping part at a region 2.5mm before and after the cutting position, and the amount of addition P2=50mg / mm, as shown in Figure 2 The amount of addition P1=15mg / mm is added to the other regions of the outer wall of the first wrapping part, which can be added by another adding device. The circumference of the long strip-shaped inner core is 17mm.

[0092] The following describes the adding characteristics of the amount of addition P2:

[0093] ​​​To meet the production speed requirement of 4000 cigarettes per minute, the inner core linear speed is 240 m / min, and the length of 2 times of cigarette L is 120 mm. The formula one and the formula two are used to calculate that the adding working time T is 0.00125 seconds, and the interval time Δt between the midpoints of the adjacent two adding works is 0.03 seconds. T = 5 mm / (240 m / min) = 0.00125 s, Δt = 120 mm / (240 m / min) = 0.03 s. The distance between the adding device 7 and the first cutting position 12 is 600 mm, which is 10 times of the length of cigarette rod, i.e. 5 times of the length of 2 times of cigarette rod. The linear speed of the inner core is also the linear speed of the long cigarette rod, and the movement distance per minute of the long cigarette rod is equal to 2000 times of the length of 2 times of cigarette rod. In this way, the adding device 7 and the first cutting device 12 can stably work at the same frequency.

[0094] 2. Making cigarette rod: 32 g 60 Cu hemp cigarette paper is used as wrapping material 3, and high-quality flue-cured tobacco is used as second content 4. After the inner core is wrapped with the second content 4, the wrapping material 3 is used for wrapping in cooperation with the use of adhesive, and the obtained long cigarette rod 11 has a circumference of 23 mm. As shown in Figure 2 .

[0095] 3. The long cigarette rod 11 made in the previous step is cut by the first cutting cutter 12 at the cutting position, and is cut into two times long coaxial cigarette rods 9 with a length of 120 mm. Then, the two times long coaxial cigarette rods 9 are cut by the second cutting cutter 15, and 60 mm long two times long filter rods 1-1 are added in the middle of the two times long coaxial cigarette rods 9, and are wrapped by 74 mm long two times long tipping paper 2-2 and adhesive, to obtain two times long coaxial cigarette rods 13. Then, the two times long coaxial cigarette rods 13 are cut by the third cutting cutter 16, and two complete coaxial cigarette rods 14 are obtained. The coaxial cigarette rod 14 includes one time long 60 mm coaxial cigarette rod 9-1 and one time long 30 mm filter rod 1, and 37 mm one time long tipping paper 2. As shown in Figure 1 , 5 .

[0096] Example 3

[0097] 1. Making inner core: 28 g 50 Cu wood pulp cigarette paper is used as wrapping material 5, and low-grade flue-cured tobacco, sun-cured tobacco and air-cured tobacco are mixed to form a tobacco shred as first content 6. Before the first content 6 is wrapped to form a long strip-shaped inner core by using the wrapping material 5, the interval time calculated according to the formula one and the formula two is added, as shown in Figure 4 . The hemp fiber soaked by liquid carbon dioxide is added to the surface of the first content 6 in a region of 4 mm before and after the cutting position, and the adding amount P2 = 15 mg / mm, as shown in Figure 3The other regions of the first content 6 surface are added with P1=0 mg / mm, which can be added by another adding device. The circumference of the long core is 15 mm.

[0098] The following describes the adding characteristics of P2:

[0099] To meet the production speed requirement of 4000 cigarettes / min, the core linear speed is 252 m / min, and the length L of 2 cigarettes is 126 mm. According to the formula one and the formula two, the length T of each adding operation is 0.0019 s, and the interval Δt between the midpoints of two adjacent adding operations is 0.03 s. T=8 mm / (252 m / min)=0.0019 s, Δt=126 mm / (252 m / min)=0.03 s. The distance between the P2 adding device 7 and the first cutting position 12 is 630 mm, which is 10 times the length of the cigarette rod, i.e. 5 times the length of 2 cigarettes. The core linear speed, which is also the linear speed of the long cigarette rod, is equal to 2000 times the length of 2 cigarettes per minute. In this way, the adding device 7 and the first cutting device 12 can stably work at the same frequency.

[0100] 2. Making a cigarette rod: 30 g 60 Cu wooden paddle cigarette paper is used as the wrapping material 3, and a mixed formula tobacco shred made of high-grade flue-cured tobacco, burley tobacco, sun-cured tobacco, and air-cured tobacco is used as the second content 4. After the core is wrapped with the second content 4, the long cigarette rod 11 is wrapped with the wrapping material 3 and adhesive. The circumference of the long cigarette rod 11 is 22 mm, as shown in Figure 3 .

[0101] 3. The long cigarette rod 11 made in the previous step is cut into 126 mm long 2-cigarette rods 9 by using the first cutting knife 12 at the cutting position, and then the 2-cigarette rod 9 is cut in the middle by using the second cutting knife 15 to add a 50 mm long filter rod 1-1 in the middle and roll the 64 mm long tipping paper 2-2 and adhesive, thereby obtaining a 2-cigarette rod 13. Then, the 2-cigarette rod 13 is cut in the middle by using the third cutting knife 16, thereby obtaining two complete 1-cigarette rods 14, which contain a 63 mm long 1-cigarette rod 9-1 and a 25 mm long filter rod 1, and a 32 mm long tipping paper 2. As shown in Figure 1 , 5 .

[0102] Comparative Example 1

[0103] The method for making a coaxial cigarette is described in “Method and device for making a coaxial cigarette”, application number CN99124897:

[0104] 1. Making inner tobacco rod: 25g 60Cu wood pulp cigarette paper is used as wrapping material 5, low-grade flue-cured tobacco formula tobacco is used as first content 6, first content 6 is cut into 6mm long tobacco high-density area at every 51mm interval, i.e. 3mm tobacco high-density area before and after the cutting position, where the normal density of tobacco is 200kg / m 3 , and the high-density of tobacco is 350kg / m 3 , then the long-stripped inner tobacco rod is made by applying adhesive to the overlapping part of wrapping material 5 and wrapping first content 6, and the circumference of the long-stripped inner tobacco rod is 19mm.

[0105] 2. Making outer tobacco rod: 30g 60Cu wood pulp cigarette paper is used as wrapping material 3, high-quality flue-cured tobacco formula tobacco is used as second content 4, the high-density area of inner and outer tobacco is detected and tracked, and the high-density area of inner and outer tobacco is synchronized by correction device, then the inner tobacco rod is wrapped by second content 4, where second content 4 is cut into 6mm long tobacco high-density area at every 51mm interval, i.e. 3mm tobacco high-density area before and after the cutting position, the normal density of second content 4 is 200kg / m 3 , and the high-density of second content 4 is 350kg / m 3 , then the long-stripped outer tobacco rod is made by wrapping with wrapping material 3 and using adhesive, and the circumference of the long-stripped outer tobacco rod is 24.3mm.

[0106] 3. The long-stripped tobacco rod 11 made in the previous step is cut by first cutting knife 12 at the cutting position to form two 108mm long coaxial tobacco rods 9, then the two coaxial tobacco rods 9 are cut by second cutting knife 15 to form two 60mm long filter rods 1-1 in the middle, and the two 60mm long filter rods 1-1 are wrapped by 72mm long tipping paper 2-2 and adhesive to form two 108mm long coaxial cigarettes 13, then the two 108mm long coaxial cigarettes 13 are cut by third cutting knife 16 to form two complete coaxial cigarettes 14, which contain one 54mm long coaxial tobacco rod 9-1 and one 30mm long filter rod 1, and 36mm long tipping paper 2. As shown in Figure 1 、 5 .

[0107] Comparative Example 2

[0108] A common non-coaxial cigarette is made by conventional technology:

[0109] 1. Making a tobacco rod: 30g of 60Cu wood pulp cigarette paper is used as a wrapping material, and high-quality flue-cured tobacco is used as the content. First, a cutting disc is used to make the content have a 6mm long high-density area of tobacco at every interval of 51mm, i.e., 3mm of high-density tobacco before and after the cutting position, and the normal density of the tobacco is 200kg / m 3 , and the high-density tobacco is 350kg / m 3 . Then, an adhesive is applied to the overlapping part of the wrapping material, and the content is wrapped to form a long tobacco rod, and the circumference of the long tobacco rod is 24.3mm.

[0110] 2. After cutting the tobacco rod made in the previous step into 54mm small pieces, a 30mm filter rod, 36mm tipping paper, and an adhesive are used to make a complete ordinary cigarette.

[0111]

Application Conclusion

[0112]

[0113]

[0114] The sensory evaluation of the burning and smoking in the above table is carried out according to the national standard GB5606.4-2005 "Cigarettes Part 4: Sensory Technical Requirements".

[0115] The calculation formula of the production efficiency of the equipment is: the number of qualified products / the total number of products.

[0116] The sensory evaluation of the burning and smoking of Example 1 is better than that of Comparative Example 2, the sensory quality is excellent, and the cost of cigarettes is greatly reduced; compared with Comparative Example 1, the production equipment is cheap, and the production efficiency of the equipment is greatly improved. The product has strong market competitiveness and profitability, creates new taste and visual experience, and has a broad application prospect.

[0117] The sensory evaluation of the burning and smoking of Example 2 is much better than that of Comparative Example 2, the sensory quality is very excellent, and the cost of cigarettes is greatly reduced; compared with Comparative Example 1, the production equipment is cheap, and the production efficiency of the equipment is greatly improved. The product has strong market competitiveness and profitability, creates new taste and visual experience, and has a very broad application prospect.

[0118] The sensory evaluation of the burning and smoking of Example 3 is much better than that of Comparative Example 2, the sensory quality is very excellent, and the cost of cigarettes is greatly reduced; compared with Comparative Example 1, the production equipment is cheap, and the production efficiency of the equipment is greatly improved. The product has strong market competitiveness and profitability, creates new taste and visual experience, and has a very broad application prospect.

[0119] The sensory evaluation of the smoke inhalation of the comparative example 1 is better than that of the comparative example 2, and the sensory quality is excellent, but because the production efficiency of the equipment is low, the cost of the cigarette is high; the production equipment is expensive; the defective products and waste products are too much. The product market competitiveness and profitability are weak, and the application prospect is very bleak.

[0120] The comparative example 2 is a common conventional product under the prior art, the production equipment is low in price due to the mature technology, and has high production efficiency, but the product sensory quality has very small space for improvement, the cigarette cost is high and difficult to optimize or reduce. With the emergence of iterative products, it will be gradually replaced or replaced.

[0121] The above is only a preferred embodiment of the present application, and does not limit the structure of the present application in any form. Any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical solution of the present application.

[0122] The above is a further detailed description of the present application in combination with the specific preferred embodiment, and cannot be considered as limiting the specific implementation of the present application. For ordinary skilled persons in the art to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made, which should be considered as belonging to the protection scope of the present application.

Claims

1. A coaxial tobacco bar, characterized in that, The coaxial cigarette pack includes: an inner core, the inner core including a first content and a first wrapping component for wrapping the first content; The outer periphery of the inner core is provided with a second content and a second wrapping component that wraps the second content; Both the first and second packages are cylindrical structures and are coaxially arranged.

2. The coaxial tobacco bar according to claim 1, characterized in that, At least one end region on the inner wall of the first package is provided with a shaping material layer; And / or, at least one end region on the outer wall of the first package is provided with a shaping material layer; And / or, at least one end region of the surface of the first contents is provided with a shaping material layer.

3. The coaxial tobacco bar according to claim 1, characterized in that, The first content is a first smoke-generating material, fuel particles, or a mixture of both; the second content is a second smoke-generating material; The first package is paper or metal foil; the second package is paper or metal foil.

4. The coaxial tobacco bar according to claim 2, characterized in that, The non-end area on the inner wall of the first package may or may not have a shaping material layer. And / or, the outer wall of the first package may have a shaping material layer in the non-end area or may not have a shaping material layer. And / or, the non-end area of ​​the surface of the first contents is provided with a shaping material layer or is not provided with a shaping material layer; The thickness of the shaping material layer in the non-end region is equal to or less than the thickness of the shaping material layer in the end region.

5. The coaxial tobacco bar according to claim 2 or 4, characterized in that, The types of shaping material layers in different locations may be the same or different.

6. The coaxial tobacco bar according to claim 2 or 4, characterized in that, The shaping material layer is selected from one or more layers of shaping coating layer, expanded plant fiber layer, expanded agent layer or fragrance layer.

7. A coaxial cigarette, characterized in that, The coaxial cigarette includes: a coaxial cigarette bar and a filter rod as described in any one of claims 1 to 4, which abut against each other, wherein a shaping material layer is provided at the distal lip end of the coaxial cigarette bar.

8. The coaxial cigarette according to claim 7, characterized in that, The filter rod abuts against the near-lip end of the coaxial tobacco stick.

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