Patent Publication Number: US-2020281256-A1

Title: Granular cigarette

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The invention relates to the cigarette product, in particular to a granular cigarette. 
     2. Description of the Related Art 
     There are two types of mainstream cigarettes, one is the traditional cigarette, which is burned and smoked; the second is a new type of low-temperature non-burning cigarette, which is wound by sheet technology. Traditional cigarettes are very harmful to human body, and the problem of second-hand smoke is serious; the low-temperature non-burning cigarette is generally baked, and due to the tight internal structure thereof, the problem of insufficient heating and uneven smoke exists. 
     SUMMARY OF THE INVENTION 
     The technical problem to be solved by the invention is: in view of the above problems in the prior art, a granular cigarette is provided. The invention replaces the low-temperature non-burning cigarette with a thin-film technology by encapsulating a granular cigarette, which has the advantages of simple production process, sufficient heating, uniform smoke, and the smoke can shuttle between particles; the problem of easy falling out of particles can be solved by the filtering component and the sealing component. 
     In order to solve the technical problems, the invention adopts the technical solutions as follows: 
     a granular cigarette, comprising a tobacco tube encapsulated with tobacco particles, wherein one end of the tobacco tube is provided with a filtering component and the other end thereof is provided with a sealing component for preventing tobacco particles from leaking out; the tobacco particles are arranged between the filtering component and the sealing component. 
     Alternatively, the filtering component is a filtering silica gel strip, and the filtering silica gel strip is provided with at least one filtering air channel. 
     Alternatively, the filtering air channel is a cogging structure arranged along the length of the filtering silica gel strip, and the end surface of the cogging structure of the filtering silica gel strip is in contact with the inner wall of the tobacco tube. 
     Alternatively, the end surface of the cogging structure of the filtering silica gel strip and the inner wall of the tobacco tube are in an interference fit. 
     Alternatively, the sealing component may be an aluminum foil or a tobacco sheet. 
     Alternatively, the sealing component is a self-closing silica gel plug. 
     Alternatively, the self-closing silica gel plug comprises a cylindrical tube, and the cylindrical tube is sleeved or embedded at the end of the tobacco tube; one end of the inner hole of the cylindrical tube is provided with an integrally formed diaphragm, and the diaphragm is provided with a kerf. 
     Alternatively, the sealing component is a glue film. 
     Alternatively, the surface of the glue film is provided with a layer of tobacco particles. 
     Alternatively, the tobacco tube comprises a first tube body and a second tube body that are connected; the filtering component is inserted into the first tube body; one end of the second tube body is formed into a barrel structure by providing the sealing component; the second tube body is provided with a barrel-shaped body for plug-in connection, and the bottom of the barrel-shaped body is provided with vent holes; the tobacco particles are arranged in a capsule inner cavity formed by plugging both the second tube body and the barrel-shaped body. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a stereoscopic view of the structure of Embodiment 1 of the invention. 
         FIG. 2  is a sectional view of the structure of Embodiment 1 of the invention. 
         FIG. 3  is a stereoscopic exploded view of the structure of Embodiment 1 of the invention. 
         FIG. 4  is a stereoscopic view of the structure of the filtering component in Embodiment 1 of the invention. 
         FIG. 5  is a stereoscopic view of the structure of Embodiment 2 of the invention. 
         FIG. 6  is a sectional view of the structure of Embodiment 2 of the invention. 
         FIG. 7  is a stereoscopic exploded view of the structure of Embodiment 2 of the invention. 
         FIG. 8  is a stereoscopic view of the structure of the sealing component in Embodiment 2 of the invention. 
         FIG. 9  is a sectional view of the structure of Embodiment 3 of the invention. 
         FIG. 10  is a sectional view of the structure of Embodiment 5 of the invention. 
         FIG. 11  is a stereoscopic exploded view of the structure of the second tube body in Embodiment 5 of the invention. 
         FIG. 12  is a stereoscopic view of the structure of the barrel-shaped body in Embodiment 5 of the invention. 
     
    
    
     In the figures,  1  refers to tobacco particles;  2  refers to the tobacco tube;  21  refers to the first tube body;  22  refers to the second tube body;  23  refers to the barrel-shaped body;  231  refers to vent holes;  3  refers to the filtering component;  4  refers to the sealing component;  41  refers to the cylindrical tube;  42  refers to the diaphragm;  43  refers to the kerf. 
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Embodiment 1 
     As shown in  FIGS. 1, 2, and 3 , the embodiment provides a granular cigarette, comprising a tobacco tube  2  encapsulated with tobacco particles  1 , wherein one end of the tobacco tube  2  is provided with a filtering component  3  and the other end thereof is provided with a sealing component  4  for preventing tobacco particles  1  from leaking out; the tobacco particles  1  are arranged between the filtering component  3  and the sealing component  4 . 
     In the embodiment, the particle size of tobacco particles  1  is greater than 0.3 mm. 
     In the embodiment, the tobacco tube  2  adopts an integrated paper tube; in addition, the tobacco tube  2  can also be prepared by tobacco leaves, and the preparation process may be winding, molding, and the like. 
     The filtering component  3  has the following basic functions: filtering and blocking tobacco particles  1  so that the smoke can pass through when the granular cigarette is heated, but the tobacco particles  1  will not fall out. In order to further improve the filtering effect, a filtering sheet may be further arranged between the filtering component  3  and the tobacco particles  1 . 
     As shown in  FIGS. 3 and 4 , the filtering component  3  is a filtering silica gel strip, and the filtering silica gel strip is provided with at least one filtering air channel. On the basis of the basic filtering function of the filtering component  3 , the filtering silica gel strip further has the functions of cooling and condensing, which can reduce the smoke temperature and condense harmful substances such as tar, and has the advantages of good heat resistance and low price without odor when being heated. There is no doubt that the filtering air channel should be sized so that it cannot pass through the tobacco particles  1 . 
     In the embodiment, the length of the tobacco tube  2  is 45 mm, the length of the filtering silica gel strip is 33 mm, and the space for encapsulating the tobacco particles  1  is approximately 12 mm (the sealing component  4  occupies a part of the length). 
     As shown in  FIGS. 3 and 4 , the filtering air channel is a cogging structure arranged along the length of the filtering silica gel strip, and the end surface of the cogging structure of the filtering silica gel strip is in contact with the inner wall of the tobacco tube. In addition to the cogging structure in the embodiment, a filtering air channel structure with multiple through holes can also be adopted, but the cogging structure makes the smoke dispersed and cool, and the processing thereof is simple and convenient, which makes the filtering air channel smaller. In the embodiment, the cogging width of the filtering air channel is 0.3 mm, and the particle size of the tobacco particles  1  is greater than 0.3 mm, thereby preventing the tobacco particles  1  from flowing out of the filtering air channel. In the embodiment, the end face of the cogging structure of the filtering silica gel strip and the inner wall of the tobacco tube  2  are in an interference fit, which can ensure that the filtering air channels are independent and isolated from each other. 
     As shown in  FIGS. 1 and 3 , the sealing component  4  is a glue film. The glue film can make the sealing component  4  very thin, which is convenient for inserting the heating needle or heating piece of the low-temperature non-burning cigarette. The preparation steps of the glue film are as follows: when filling tobacco particles  1  into the tobacco tube  2 , leaving a certain height (specifically 2 mm in the embodiment) without filling up, and applying or spraying a layer of tobacco glue (food-grade glue) on the tobacco particles  1 ; a glue film can be formed after the glue is dried, so that the end for filling the tobacco particles  1  in the tobacco tube  2  is closed, thereby preventing the tobacco particles  1  from falling. 
     Since the color and appearance of the glue film are very different from those of tobacco particles  1 , in order to overcome the above problems, a layer of tobacco particles is provided on the surface of the glue film in the embodiment. The preparation method thereof is as follows: after applying or spraying a layer of tobacco glue (food-grade glue) on the tobacco particles  1 , spreading a layer of tobacco particles on the surface, and the tobacco particles can be bonded to the wet glue film to form a layer of tobacco particles, so that it cannot only prevent the tobacco particles  1  from falling, but also has basically the same appearance and feel as ordinary tobacco particles. 
     The preparation steps of the granular cigarette in the embodiment are as follows: 1) inserting the filtering component  3  into one end of the tobacco tube  2 ; 2) filling the tobacco particles  1 ; 3) preparing the glue film and the layer of tobacco particles thereof; 4) drying. 
     Embodiment 2 
     The embodiment is basically the same as Embodiment 1, and the main differences are as follows: when the sealing component  4  adopts the glue film, since a glue applying or spraying process is required, and subsequent drying treatment is required, the processing period is longer; in order to simplify the process of the sealing component  4  and shorten the production period of the sealing component  4 , as shown in  FIGS. 5, 6, 7, and 8 , the sealing component  4  is a self-closing silica gel plug in the embodiment. The self-closing silica gel plug can be sleeved or embedded directly at the end of the tobacco tube  2 , so the process of the sealing component  4  can be greatly simplified and the production period of the sealing component  4  can be greatly shortened. In addition, the self-closing silica gel plug has the advantages of good heat resistance and low price without odor when being heated. The sealing component  4  adopts the self-closing silica gel plug, which makes the preparation process of the granular cigarette simple, has the advantages of artistic appearance and good sealing performance; the particles will not fall out, and it is easy to insert. 
     As shown in  FIGS. 5, 6, 7, and 8 , the self-closing silica gel plug comprises a cylindrical tube  41 , and the cylindrical tube  41  is sleeved or embedded at the end of the tobacco tube  2 ; one end of the inner hole of the cylindrical tube  41  is provided with an integrally formed diaphragm  42 , and the diaphragm  42  is provided with a kerf  43 . When in use, inserting the heating needle or heating piece of the low-temperature non-burning cigarette into the kerf  43 , the diaphragms  42  on both sides of the kerf  43  will be wrapped and squeezed on the outer wall of the heating needle or heating piece of the low-temperature non-burning cigarette, thereby preventing the tobacco particles  1  from falling. 
     In the embodiment, the outer wall of the cylindrical tube  41  is inserted at the end of the inner hole of the tobacco tube  2  to make the external integrity of the tobacco tube  2  better; in addition, it can also be sleeved on the outside of the tobacco tube  2  as needed. In the embodiment, the kerf  43  is in a cruciform structure; further, other shapes such as a straight line, or a radial pattern may also be adopted as needed. 
     The preparation steps of the granular cigarette in the embodiment are as follows: 1) inserting the filtering component  3  into one end of the tobacco tube  2 ; 2) filling the tobacco particles  1 ; 3) sleeving or embedding the self-closing silica gel plug. 
     Embodiment 3 
     The embodiment is basically the same as Embodiment 1, as shown in  FIG. 9 , and the main differences are as follows: 1. the structure of the tobacco tube  2  is different; in the embodiment, the tobacco tube  2  is a two-stage structure similar to an ordinary cigarette, and the outer part of the filtering component  3  is a thin paper tube, while that of the tobacco particles  1  adopts thicker paper tube, so as to protect the inside tobacco particles  1  from being extruded and deformed. 2. The structure of the filtering component  3  is different; the filtering component  3  in the embodiment adopts a filter fiber of an ordinary cigarette (generally an acetate filter). 3. The structure of the sealing component  4  is different; the sealing component  4  in the embodiment is an aluminum foil, and the sealing with the aluminum foil has the advantages of cleanliness, sanitation, and easy insertion. 
     The preparation steps of the granular cigarette in the embodiment are as follows: 1) inserting the filtering component  3  into one end of the tobacco tube  2 ; 2) filling the tobacco particles  1 ; 3) sealing the aluminum foil. 
     Embodiment 4 
     The embodiment is basically the same as Embodiment 3, and the main differences are as follows: the structure of the sealing component  4  is different; the sealing component  4  in the embodiment is the tobacco sheet; the tobacco sheet is a tobacco paper sheet made of tobacco leaves or a tobacco-like papermaking process (mainly including pulping, papermaking, drying, etc.) or a molding process, which is connected to the end of the tobacco tube  2  by gluing or other composite processes, and the tobacco sheet has the advantages of pure taste and easy insertion. 
     The preparation steps of the granular cigarette in the embodiment are as follows: 1) inserting the filtering component  3  into one end of the tobacco tube  2 ; 2) filling the tobacco particles  1 ; 3) sealing the tobacco sheet. 
     Embodiment 5 
     The embodiment is basically the same as Embodiment 1, and the main differences are as follows: 
     1. the structure of the tobacco tube  2  is different; as shown in  FIGS. 10, 11, and 12 , the tobacco tube  2  in the embodiment comprises a first tube body  21  and a second tube body  22  that are connected; the filtering component  3  is inserted into the first tube body  21 ; one end of the second tube body  22  is formed into a barrel structure by providing the sealing component  4 ; the second tube body  22  is provided with a barrel-shaped body  23  for plug-in connection, and the bottom of the barrel-shaped body  23  is provided with vent holes  231 ; the tobacco particles  1  are arranged in a capsule inner cavity formed by plugging both the second tube body  22  and the barrel-shaped body  23 . The capsule structure can be formed by inserting both the second tube body  22  and the barrel-shaped body  23 , and the filing of the tobacco particles  1  can be realized by the capsule inner cavity, which can effectively solve the problem that the tobacco particles  1  easily fall out during the production process. In the embodiment, both the second tube body  22  and the barrel-shaped body  23  are made of mould pressing of tobacco particles, which makes the cigarette has the advantage of pure taste. 
     In the embodiment, one end of the second tube body  22  is set with a thickness of 0.3 mm to facilitate piercing, and the inner diameter of the second tube body  22  is 7 mm; the outer diameter of the barrel-shaped body  23  is 7 mm. 
     2. The structure of the filtering component  3  is different; the filtering component  3  in the embodiment adopts a filter fiber of an ordinary cigarette (generally an acetate filter). 
     The preparation steps of the granular cigarette in the embodiment are as follows: 1) filling the barrel-shaped body  23  with tobacco particles  1  and inserting it into the second tube body  22  to form a capsule structure; 2) compositely molding the capsule structure, the filtering component  3 , and the first tube body  21 . 
     The above are only preferred embodiments of the invention, and the protection scope of the invention is not limited thereto; any technical solution falling under the idea of the invention shall fall within the protection scope of the invention. It should be noted that any improvement and modification made of those of ordinary skill in the art without departing from the principles of the invention shall fall within the protection scope of the invention.