CN112369659A - Cooling filter rod and low-temperature cigarette with same - Google Patents

Abstract

The invention discloses a cooling nozzle rod and a low-temperature cigarette with the cooling nozzle rod. The cooling nozzle rod includes a particle section, a first filter section and a second filter section; For particles that increase the flavor of smoke, the first end of the particle segment is connected to the first end of the first filter segment, and the second end of the particle segment opposite to the first end of the particle segment is connected to the first end of the second filter segment; The inside of the filter section is provided with a first bundle column for passing the flue gas and blocking the particles, and the second end of the first filter section opposite to the first end of the first filter section is used to connect the atomized tobacco matrix section; The inside of the second filter section is provided with a second beam column for the passage of the flue gas and blocking the particles, and the second end of the second filter section opposite to the first end of the second filter section is used for the passage of the flue gas to flow in for use in the mouth of the person. A low temperature cigarette includes a cooling tip stick and an atomized tobacco substrate segment attached thereto. The present invention can reduce smoke temperature and/or increase smoke flavor.

Description

A cooling nozzle stick and low-temperature cigarette with the cooling nozzle stick

technical field

The invention relates to a cooling nozzle stick and a low-temperature cigarette with the cooling nozzle stick, and belongs to the technical field of low-temperature cigarettes.

Background technique

Heat-not-burn cigarettes (low-temperature cigarettes) heat their atomized tobacco substrate segments to 200°C to 400°C (degrees Celsius) through an external heat source (electric heating device), thereby producing smoke similar to traditional cigarettes for consumers to smoke. However, this type of use will introduce a problem, that is: the temperature of the flue gas is too high, and the temperature of the oral flue gas and the temperature of the lip end of the filter rod surface can reach more than 70 degrees Celsius without cooling the filter rod section. or even higher, thus seriously affecting the consumer experience.

Chinese patent application document CN109123785A discloses an integrated low-temperature cigarette cooling tip stick. The cooling tip stick includes a first partition and a second partition. Although it can prevent particles from falling from the tip, it is not conducive to relying on existing Filter rod forming equipment for industrial scale production.

SUMMARY OF THE INVENTION

In view of the above problems, the purpose of the present invention is to provide a cooling nozzle stick and a low-temperature cigarette with the cooling nozzle stick, which can simply and efficiently reduce the temperature of smoke and/or increase the flavor of smoke, and provide a good smoking experience.

In one aspect, the present invention provides a cooling nozzle rod, comprising a particle section, a first filter section and a second filter section; wherein, the particle section includes a filter for reducing the temperature of smoke and/or increasing the flavor of smoke particles, the first end of the particle segment is connected to the first end of the first filter segment, and the second end of the particle segment opposite to the first end of the particle segment is connected to the second filter segment The first end of the first filter section; the inside of the first filter section is provided with a first beam column for the passage of flue gas and for blocking the particles, and the first filter section and the first filter section are provided with a first beam column. The second end opposite to the first end is used to connect the atomized tobacco substrate segment; the interior of the second filter segment is provided with a second beam column for passing the smoke and for blocking the particles, so The second end of the second filter segment opposite to the first end of the second filter segment is used for the smoke to pass through and flow into the user's mouth.

In a specific embodiment, the particle segment includes a hollow cavity in which the particle is placed.

In a specific embodiment, the number of the particles is plural.

In a specific embodiment, the inside of the first filter segment and/or the second filter segment is provided with a longitudinal channel for the flue gas to pass through, and the diameter of the longitudinal channel is smaller than the outer diameter of the particles.

In a specific embodiment, the diameter of the longitudinal channel is 0.3-1.5 mm.

In a specific embodiment, the longitudinal holes are formed by directly opening holes on the first beam column and/or the second beam column.

In a specific embodiment, the longitudinal channels are hollow thin tubes.

In a specific embodiment, the hollow thin tube is made of plastic.

In a specific embodiment, the plastic is polylactic acid plastic.

In a specific embodiment, the first bundle of pillars and the second bundle of pillars are respectively made of tows.

In a specific embodiment, the single denier of the tows of the first bundle of columns and the second bundle of columns are respectively 6.0-23.0, and the total denier of the tows of the first bundle of columns and the second bundle of columns is 6.0-23.0. The denier is 15,000 to 38,000, respectively.

In a specific embodiment, the single denier of the tows of the first bundle of pillars and the second bundle of pillars is 8.0˜23.0, respectively, and the total denier of the tows of the first bundle of pillars and the second bundle of pillars is 8.0-23.0. The denier is 15,000 to 32,000, respectively.

In a specific embodiment, the tow includes one or more of diacetate tow, triacetate tow, and polylactic acid tow.

In a specific embodiment, the draw resistance per millimeter of the tows of the first bundle column and the second bundle column is 0.5-2 mm water column, respectively.

In a specific embodiment, the particles are made of a first phase change material and/or a first flavor substance.

In a specific embodiment, the first phase change material includes one or more of polylactic acid, polyethylene, starch-based copolymers, and polysaccharide-based polymers, and the first flavor material is tobacco flavor.

In a specific embodiment, the granules are prepared by granulation and/or dripping.

In a specific embodiment, the particles are made by granulation, which includes the following steps: (1) obtaining the first phase change material, pulverizing the first phase change material into powder and placing it in a mixer (2) obtain described first flavor substance, described first flavor substance is sprayed on described powder surface; (3) obtain adhesive, add in described powder after described adhesive is dissolved, stir to make soft material; (4) The soft material is first extruded into strips, then spheronized and dried to obtain the granules.

In a specific embodiment, the adhesive includes one or more of povidone, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, and carboxymethyl cellulose.

In a specific embodiment, the particles are made by dropping method, which includes the following steps: (1) obtaining the first phase change material, and placing the first phase change material in a heating container for heating and melting (2) Obtaining the first flavor substance, adding the first flavor substance to the melted first phase change material, mixing evenly, and then standing and mixing for 1.5 to 2 hours to obtain a mixed solution; (3) The mixed solution is dropped into a condensing agent by a pill-dropping machine to condense, and solidified and formed by a molding agent to obtain the particles.

In a specific embodiment, the condensing agent includes liquid paraffin and/or olive oil; the molding agent includes one or more of polyethylene glycol, sodium alginate, gelatin, gum arabic, and guar gum.

In a specific embodiment, the particles comprise a porous medium matrix, and the pores of the porous medium matrix are provided with a cooling part and/or a flavor releasing part.

In a specific embodiment, the cooling part is made of a second phase change material, and the flavor release part is made of a second flavor material.

In a specific embodiment, the porous medium matrix includes activated carbon and/or molecular sieve, and the second phase change material includes one or more of polylactic acid, polyethylene, starch-based copolymer, and polysaccharide-based polymer , and the second flavor substance is tobacco flavor.

In a specific embodiment, the preparation process of the particles includes the following steps: (1) obtaining the porous medium matrix, and placing the porous medium matrix into a closed container; (2) obtaining the second flavor substance, spraying the second flavor material on the surface of the porous medium substrate; (3) standing for 1.5 to 2 hours to make the porous medium substrate adsorb the second flavor material to obtain porous medium particles; (4) placing the The porous medium particles are put into a low-temperature dryer to be dried, and the surface solution is removed to obtain the particles.

In a specific embodiment, the first filter segment, the particle segment and the second filter segment are jointly overmolded by molding paper.

On the other hand, the present invention also provides a low-temperature cigarette, comprising the cooling tip stick and the atomized tobacco base segment connected with the cooling tip stick.

In a specific embodiment, the cooling tip rod and the atomized tobacco substrate segment are connected by tipping paper.

The present invention has the following advantages due to taking the above technical solutions:

1. The present invention is provided with a particle section, which can simply and efficiently reduce the temperature of the flue gas and/or increase the flavor of the flue gas, and has a good smoking experience.

2. The number of particles of the present invention is multiple, which can improve the effect of cooling the smoke and/or increasing the flavor.

3. The particles of the present invention are made of the first phase change material and/or the first flavor substance, and have a simple structure and convenient use, and can ensure the stability and controllability of the production quality of the cooling nozzle.

4. The particles of the present invention include a porous medium matrix, and a cooling part and/or a flavor release part are arranged in the pores of the porous medium matrix, which can further improve the effect of cooling the flue gas and/or increasing the flavor, and at the same time can ensure the cooling nozzle rod. Stability and controllability of production quality.

5. The first beam column and the second beam column of the present invention are respectively made of tow, which can reduce the suction resistance and interception of the flue gas, and improve the filtering effect and cooling effect of the flue gas.

6. The first filter section and/or the second filter section of the present invention are provided with longitudinal holes for the passage of smoke, which can further reduce the suction resistance and retention of the cooling nozzle rod, so that the smoke volume of low-temperature cigarettes can be retained, and the smoke Great for cooling and/or adding flavor.

7. The present invention is provided with a first filter section, a second filter section and a particle section, which can expand the use scene of the cooling nozzle rod, and can realize continuous large-scale production by relying on the existing nozzle rod forming equipment, and has a broad market prospect.

Other features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the description, claims and drawings.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings required in the description of the embodiments:

Fig. 1 is the structural representation of a specific embodiment of the cooling nozzle rod of the present invention;

Fig. 2 is the structural representation of another specific embodiment of the cooling nozzle rod of the present invention;

3 is a schematic structural diagram of the first filter section of another specific embodiment of the cooling nozzle rod of the present invention.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples, so as to fully understand and implement the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects. It should be noted that, as long as there is no conflict, each embodiment of the present invention and each feature of each embodiment can be combined with each other, and the formed technical solutions all fall within the protection scope of the present invention. Directional terms such as "inside" and "outside" mentioned in the present invention are only by way of reference to the attached drawings. Therefore, the directional terms used are for describing and understanding the present invention, not for limiting the present invention.

Example 1

As shown in FIG. 1 , the cooling nozzle rod proposed in the first embodiment of the present invention includes a particle section 1 , a first filter section 2 and a second filter section 3 . in,

The particle segment 1 includes particles 11 for reducing the temperature of the smoke and/or for increasing the flavor of the smoke. The particle segment 1 can not only guide the smoke to quickly enter the user's mouth, but also reduce the smoke temperature of the smoke and/or increase the flavor of the smoke (when the smoke is in contact with the particles 11, the particles 11 can absorb the heat in the smoke, and/or the particles 11 absorb the heat of the smoke to volatilize the flavor substances and increase the flavor of the smoke ). The first end of the particle segment 1 is connected to the first end of the first filter segment 2 . The second end of the particle segment 1 opposite to the first end of the particle segment 1 is connected to the first end of the second filter segment 3 .

The inside of the first filter section 2 is provided with a first beam column 21 for passing the flue gas and for blocking the particles 11, which can filter the flue gas while reducing the temperature of the flue gas, and make the flue gas enter as much as possible to cool down. in the mouth stick. The second end of the first filter section 2 opposite to the first end of the first filter section 2 is used to connect the atomized tobacco substrate section.

The inside of the second filter section 3 is provided with a second beam column 31 for passing the flue gas and for blocking the particles 11 . The second end of the second filter section 3 opposite to the first end of the second filter section 3 is used for In order for the smoke to pass through and flow into the user's mouth, the second beam column 31 can further filter the smoke and reduce the temperature of the smoke, and make the smoke enter the user's mouth as much as possible.

When in use, the high-temperature flue gas (200-400 degrees Celsius) generated by the heating of the atomized tobacco matrix section enters the first beam column 21, and the first beam column 21 of the through-hole flows into the particle section 1 to cool down and/or increase the flavor. And/or the flavor-added smoke flows into the user's mouth through the second filter section 3 .

Further, the particle segment 1 includes a hollow cavity 12 , and the particles 11 are placed in the hollow cavity 12 . Under the joint blocking action of the first beam column 21 and the second beam column 31 , the particles 11 are always in the hollow cavity 12 .

Further, the number of particles 11 is multiple, which can improve the effect of cooling the smoke and/or increasing the flavor.

Further, the first bundle column 21 and the second bundle column 31 are respectively made of tow, which can reduce the suction resistance and interception of the flue gas, and improve the filtering effect and cooling effect of the flue gas. Specifically, the first filter section 2 and the second filter section 3 are both prepared by using a special specification tow through a filter rod forming machine, and the particles 11 in the particle section 1 are kept in the hollow cavity 12 all the time.

Further, the first bundle column 21 and the second bundle column 31 are respectively made of blended tow. Blended tow includes polylactic acid tow and acetate tow. Wherein, the single denier of the polylactic acid tow (the single denier) is 10.0, the total denier (the total denier) is 15000, the single denier of the acetate fiber tow is 23.0, the total denier is 15000, the cooling effect is good, and the filter Works well.

Further, the draw resistances per millimeter of the tows of the first bundle of columns 21 and the second bundle of columns 31 are respectively 0.5-2 mm of water column.

Further, the particles 11 are made of the first phase change material and/or the first flavor substance.

Further, the first phase change material includes one or more of polylactic acid, polyethylene, starch-based copolymer, and polysaccharide-based polymer.

Further, the first flavor substance is tobacco flavor.

Further, the particles 11 are made by granulation, including the following steps: (1) respectively pulverizing the plant and the polylactic acid material into powders (fine powders) and putting them into a mixer for thorough mixing. (2) Weigh 0.5% to 2% of the total weight of the powder with tobacco flavor and evenly spray it on the surface of the powder. (3) Take 0.1-1% of the weight of the powder to take the hydroxypropyl cellulose as an adhesive, dissolve it with water, add it to the above powder, and stir to make a soft material. (4) Put the soft material into the extruder-spheronizer, firstly extrude the soft material into long and thin strips through the extruder, then spheronize through the spheronizer, and obtain pellets 11 after drying.

Further, the particle size of the particles 11 is 1.2 mm, and the bulk density of the particles 11 is 1.0-1.5 g/ml.

Embodiment 2

As shown in FIG. 2 and FIG. 3 , the cooling nozzle rod proposed in the second embodiment of the present invention includes a particle section 1 , a first filter section 2 and a second filter section 3 . in,

The particle segment 1 includes particles 11 for reducing the temperature of the smoke and/or for increasing the flavor of the smoke. The particle segment 1 can not only guide the smoke to quickly enter the user's mouth, but also reduce the smoke temperature of the smoke and/or increase the flavor of the smoke (when the smoke is in contact with the particles 11, the particles 11 can absorb the heat in the smoke, and/or the particles 11 absorb the heat of the smoke to volatilize the flavor substances and increase the flavor of the smoke ). The first end of the particle segment 1 is connected to the first end of the first filter segment 2 . The second end of the particle segment 1 opposite to the first end of the particle segment 1 is connected to the first end of the second filter segment 3 .

The inside of the first filter section 2 is provided with a first beam column 21 for passing the flue gas and for blocking the particles 11, which can filter the flue gas while reducing the temperature of the flue gas, and make the flue gas enter as much as possible to cool down. in the mouth stick. The second end of the first filter section 2 opposite to the first end of the first filter section 2 is used to connect the atomized tobacco substrate section.

The inside of the second filter section 3 is provided with a second beam column 31 for passing the flue gas and for blocking the particles 11 . The second end of the second filter section 3 opposite to the first end of the second filter section 3 is used for In order for the smoke to pass through and flow into the user's mouth, the second beam column 31 can further filter the smoke and reduce the temperature of the smoke, and make the smoke enter the user's mouth as much as possible.

When in use, the high-temperature flue gas (200-400 degrees Celsius) generated by the heating of the atomized tobacco matrix section enters the first beam column 21, and the first beam column 21 of the through-hole flows into the particle section 1 to cool down and/or increase the flavor. And/or the flavor-added smoke flows into the user's mouth through the second filter section 3 .

Further, the particle segment 1 includes a hollow cavity 12 , and the particles 11 are placed in the hollow cavity 12 .

Further, the number of particles 11 is multiple, which can improve the effect of cooling the smoke and/or increasing the flavor.

Further, the inside of the first filter section 2 is provided with a hollow thin tube 22 for the flue gas to pass through, and the hole diameter of the hollow thin tube 22 is smaller than the outer diameter of the particles 11, which can further reduce the suction resistance and interception of the cooling nozzle rod, thereby The smoke volume of the low-temperature cigarette can be retained, and the effect of cooling the smoke and/or increasing the flavor is good.

Further, the number of hollow thin tubes 22 is three. Specifically, the three hollow thin tubes 22 are compounded into the interior of the first beam column 21 according to the concentric filter rod forming process.

Further, the hollow thin tube 22 is made of polylactic acid material.

Further, the diameter of the hollow thin tube 22 is 1.5 mm.

Further, the first bundle column 21 and the second bundle column 31 are respectively made of tow, which can reduce the suction resistance and interception of the flue gas, and improve the filtering effect and cooling effect of the flue gas. Specifically, the first filter section 2 and the second filter section 3 are both prepared by using a special specification tow through a filter rod forming machine, and the particles 11 in the particle section 1 are kept in the hollow cavity 12 all the time.

Further, the first bundle column 21 and the second bundle column 31 are respectively made of cellulose acetate tow. Among them, the single denier of the acetate tow is 23.0, and the total denier is 15,000.

Further, the draw resistances per millimeter of the tows of the first bundle of columns 21 and the second bundle of columns 31 are respectively 0.5-2 mm of water column.

Further, the particles 11 are made of the first phase change material and/or the first flavor substance.

Further, the first phase change material includes one or more of polylactic acid, polyethylene, starch-based copolymer, and polysaccharide-based polymer.

Further, the first flavor substance is tobacco flavor.

Further, the particles 11 are made by granulation, including the following steps: (1) First, a certain amount of polyethylene glycol polymer (molecular weight 2000-6000) or a mixture thereof is heated and melted in a water bath at 70 degrees Celsius. (2) Then add the essence to it in a certain proportion, mix it evenly, and let it stand for 2 hours. (3) The above mixed solution is dropped into liquid paraffin to condense by using an automatic pill-dropping machine, and solidified and molded by a molding agent to obtain particles 11 .

Further, the diameter of the particles 11 is 2.2 mm.

Further, the temperature of the liquid paraffin is -4 to 0 degrees Celsius, which can facilitate the rapid condensation and formation of droplets of the mixed solution dropped in.

Embodiment 3

As shown in FIG. 2 and FIG. 3 , the cooling nozzle rod proposed in the third embodiment of the present invention includes a particle section 1 , a first filter section 2 and a second filter section 3 . in,

The particle segment 1 includes particles 11 for reducing the temperature of the smoke and/or for increasing the flavor of the smoke. The particle segment 1 can not only guide the smoke to quickly enter the user's mouth, but also reduce the smoke temperature of the smoke and/or increase the flavor of the smoke (when the smoke is in contact with the particles 11, the particles 11 can absorb the heat in the smoke, and/or the particles 11 absorb the heat of the smoke to volatilize the flavor substances and increase the flavor of the smoke ). The first end of the particle segment 1 is connected to the first end of the first filter segment 2 . The second end of the particle segment 1 opposite to the first end of the particle segment 1 is connected to the first end of the second filter segment 3 .

The inside of the first filter section 2 is provided with a first beam column 21 for passing the flue gas and for blocking the particles 11, which can filter the flue gas while reducing the temperature of the flue gas, and make the flue gas enter as much as possible to cool down. in the mouth stick. The second end of the first filter section 2 opposite to the first end of the first filter section 2 is used to connect the atomized tobacco substrate section.

The inside of the second filter section 3 is provided with a second beam column 31 for passing the flue gas and for blocking the particles 11 . The second end of the second filter section 3 opposite to the first end of the second filter section 3 is used for In order for the smoke to pass through and flow into the user's mouth, the second beam column 31 can further filter the smoke and reduce the temperature of the smoke, and make the smoke enter the user's mouth as much as possible.

When in use, the high-temperature flue gas (200-400 degrees Celsius) generated by the heating of the atomized tobacco matrix section enters the first beam column 21, and the first beam column 21 of the through-hole flows into the particle section 1 to cool down and/or increase the flavor. And/or the flavor-added smoke flows into the user's mouth through the second filter section 3 .

Further, the particle segment 1 includes a hollow cavity 12 , and the particles 11 are placed in the hollow cavity 12 .

Further, the number of particles 11 is multiple, which can improve the effect of cooling the smoke and/or increasing the flavor.

Further, the inside of the first filter section 2 is provided with a hollow thin tube 22 for the flue gas to pass through, and the hole diameter of the hollow thin tube 22 is smaller than the outer diameter of the particles 11, which can further reduce the suction resistance and interception of the cooling nozzle rod, thereby The smoke volume of the low-temperature cigarette can be retained, and the effect of cooling the smoke and/or increasing the flavor is good.

Further, the number of hollow thin tubes 22 is three. Specifically, the three hollow thin tubes 22 are compounded into the interior of the first beam column 21 according to the concentric filter rod forming process.

Further, the diameter of the hollow thin tube 22 is 1.5 mm.

Further, the first bundle column 21 and the second bundle column 31 are respectively made of tow, which can reduce the suction resistance and interception of the flue gas, and improve the filtering effect and cooling effect of the flue gas. Specifically, the first filter section 2 and the second filter section 3 are both prepared by using a special specification tow through a filter rod forming machine, and the particles 11 in the particle section 1 are kept in the hollow cavity 12 all the time.

Further, the first bundle column 21 and the second bundle column 31 are respectively made of cellulose acetate tow. Among them, the single denier of the acetate tow is 23.0, and the total denier is 15,000.

Further, the draw resistances per millimeter of the tows of the first bundle of columns 21 and the second bundle of columns 31 are respectively 0.5-2 mm of water column.

Further, the particles 11 include a porous medium matrix, and the pores of the porous medium matrix are provided with cooling parts and/or flavor release parts.

Further, the cooling part is made of the second phase change material. The flavor release part is made of the second flavor.

Further, the porous media matrix includes activated carbon and/or molecular sieves.

Further, the second phase change material includes one or more of polylactic acid, polyethylene, starch-based copolymer, and polysaccharide-based polymer.

Further, the second flavor substance is tobacco flavor.

Further, the preparation process of the particles 11 includes the following steps: (1) Weigh a certain amount of activated carbon particles and put them into a closed container. (2) Weigh 0.5% to 5% of the total particle weight of the tobacco flavor, and spray it evenly on the surface of the activated carbon particles. (3) Let it stand for 2 hours, so that the activated carbon particles can completely adsorb the cigarette flavor. (4) The activated carbon particles are put into a low-temperature dryer, and the surface solution is removed by drying with hot air to obtain particles 11 .

Further, the drying temperature of the hot air drying is 30-40 degrees Celsius, and the drying time is 1-3 hours.

Further, the diameter of the particles 11 is 2.2 mm.

Although the disclosed embodiments of the present invention are as above, the content described is only an embodiment adopted to facilitate understanding of the present invention, and is not intended to limit the present invention. Any person skilled in the art to which the present invention belongs, without departing from the spirit and scope disclosed by the present invention, can make any modifications and changes in the form and details of the implementation, but the scope of patent protection of the present invention, The scope as defined by the appended claims shall still prevail.

Claims (28)

1. A cooling filter tip is characterized by comprising a particle section, a first filtering section and a second filtering section; wherein,

the particle section comprises particles for reducing the temperature of smoke and/or for increasing the flavor of smoke, a first end of the particle section is connected with a first end of the first filter section, and a second end of the particle section, which is opposite to the first end of the particle section, is connected with a first end of the second filter section;

a first beam column for smoke to pass through and for blocking the particles is arranged in the first filter segment, and a second end of the first filter segment, which is opposite to the first end of the first filter segment, is used for connecting an atomized tobacco substrate segment;

the second filter section is internally provided with a second beam column which is used for the smoke to pass through and used for blocking the particles, and a second end of the second filter section, which is opposite to the first end of the second filter section, is used for the smoke to pass through and flow into the mouth of a user.

2. The cooling filter rod of claim 1, wherein the pellet segment includes a hollow cavity, the pellets being disposed within the hollow cavity.

3. The cooling tip rod of claim 1, wherein the number of particles is plural.

4. The cooling tip rod as claimed in claim 1, wherein the first filter segment and/or the second filter segment is provided with longitudinal holes for smoke to pass through, and the hole diameter of the longitudinal holes is smaller than the outer diameter of the particles.

5. The cooling tip rod as claimed in claim 4, wherein the diameter of the longitudinal channel is 0.3-1.5 mm.

6. The cooling tip according to claim 4, wherein the longitudinal ducts are formed by directly opening holes in the first bundle of pillars and/or the second bundle of pillars.

7. The cooling tip rod of claim 4, wherein the longitudinal hole is a hollow thin tube.

8. The cooling tip rod of claim 7, wherein the hollow tubule is made of plastic.

9. The cooling tip rod of claim 8, wherein the plastic is a polylactic acid plastic.

10. The cooling tip rod of claim 1, wherein the first bundle of posts and the second bundle of posts are each made of tow.

11. The cooling tip according to claim 10, wherein the filament bundles of the first bundle of columns and the second bundle of columns have a single denier of 6.0 to 23.0, respectively, and the filament bundles of the first bundle of columns and the second bundle of columns have a total denier of 15000 to 38000, respectively.

12. The cooling plug according to claim 11, wherein the filament bundles of the first bundle of columns and the second bundle of columns have a single denier of 8.0 to 23.0, respectively, and the filament bundles of the first bundle of columns and the second bundle of columns have a total denier of 15000 to 32000, respectively.

13. The cooling filter rod of claim 10, wherein the tow comprises one or more of a diacetate tow, a triacetate tow, and a polylactic acid tow.

14. The cooling tip rod according to claim 10, wherein the tows of the first bundle of posts and the tows of the second bundle of posts have a suction resistance per millimeter of 0.5-2 mm of water.

15. A cooling plug according to claim 1, wherein the particles are made from a first phase change material and/or a first flavour substance.

16. The cooling filter tip according to claim 15, wherein the first phase change material comprises one or more of polylactic acid, polyethylene, starch copolymer and polysaccharide polymer, and the first flavor substance is tobacco essence.

17. The cooling tip rod of claim 15, wherein the granules are made by granulation and/or dripping.

18. The cooling tip rod of claim 17, wherein the granules are made by granulation, comprising the steps of:

(1) obtaining the first phase-change material, and crushing the first phase-change material into powder to be placed into a stirrer;

(2) obtaining the first flavor substances, and spraying the first flavor substances on the surface of the powder;

(3) obtaining an adhesive, dissolving the adhesive, adding the dissolved adhesive into the powder, and stirring to prepare a soft material;

(4) and extruding the soft material into strips, rolling and drying to obtain the particles.

19. The cooling filter rod of claim 18, wherein the adhesive comprises one or more of povidone, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, and carboxymethyl cellulose.

20. The cooling tip rod of claim 17, wherein the granules are made in a drop-wise manner, comprising the steps of:

(1) obtaining the first phase-change material, and putting the first phase-change material into a heating container for heating and melting;

(2) obtaining the first flavor substance, adding the first flavor substance into the melted first phase-change material, uniformly mixing, and standing for 1.5-2 hours to obtain a mixed solution;

(3) and dripping the mixed solution into a condensing agent by using a pill dripping machine for condensation, and curing and molding by using a molding agent to obtain the particles.

21. The cooling tip rod of claim 20, wherein the condensing agent comprises liquid paraffin and/or olive oil; the forming agent comprises one or more of polyethylene glycol, sodium alginate, gelatin, acacia and guar gum.

22. The cooling tip according to claim 1, wherein the particles comprise a porous medium matrix, and a cooling portion and/or a flavor releasing portion are disposed in pores of the porous medium matrix.

23. The cooling plug of claim 22, wherein the cooling portion is made of a second phase change material and the flavor releasing portion is made of a second flavor.

24. The cooling filter rod as claimed in claim 23, wherein the porous medium matrix comprises activated carbon and/or molecular sieve, the second phase change material comprises one or more of polylactic acid, polyethylene, starch copolymer and polysaccharide polymer, and the second flavor substance is essence for tobacco.

25. The cooling filter rod of claim 23, wherein the preparation process of the granules comprises the following steps:

(1) obtaining the porous medium matrix, and putting the porous medium matrix into a closed container;

(2) acquiring the second flavor substances, and spraying the second flavor substances on the surface of the porous medium substrate;

(3) standing for 1.5-2 hours to enable the porous medium matrix to adsorb the second flavor substance, and obtaining porous medium particles;

(4) and (3) drying the porous medium particles in a low-temperature dryer, and removing the surface solution to obtain the particles.

26. The cooling tip rod of claim 1, wherein the first filter segment, the particulate segment, and the second filter segment are collectively overmolded by plug wrap.

27. A low temperature cigarette comprising a cooling filter rod according to any one of claims 1 to 26 and the atomised tobacco substrate segment attached thereto.

28. The low temperature cigarette of claim 27, wherein the cooling filter rod and the aerosolized tobacco substrate segment are joined by tipping paper.

Images