Ternary composite filter rod containing cuprous ion-based MOFs-gel particles

Abstract

The present invention belongs to the technical field of cigarette auxiliary materials, and relates to a composite filter rod, and in particular to a ternary composite filter rod comprising cuprous ion-based MOFs-gel particles having a specific adsorption capacity for CO, wherein the composite particles are evenly spread in the loosened tobacco tow, and are made into a particle filter rod through a molding paper roll, and then composited with filter rods 1 and 2, wherein the composite particles are cuprous ion-based MOFs particles with a phase change gel wrapped on the surface, and the addition amount thereof is 0.1-3 mg / mm, and the lengths of the particle filter rod, filter rod 1 and filter rod 2 are 5-20 mm respectively. The composite filter rod disclosed in the present invention has a simple preparation process, and does not require the modification of the existing filter rod forming equipment. The composite filter rod prepared can efficiently adsorb CO in the smoke, significantly reduce the content of CO in the smoke entering the oral cavity, and the adsorption rate can reach more than 15%. Due to the thermal sensitivity of the phase change gel in the cuprous ion-based MOFs-gel composite particle material, the smoke temperature can be significantly reduced, and the effect on the taste sensory perception is not great, and it has an obvious harm reduction effect.

Description

Technical Field

[0001] The invention belongs to the technical field of cigarette auxiliary materials, and relates to a composite filter rod, in particular to a ternary composite filter rod comprising cuprous ion-based MOFs-gel particles. Background Art

[0002] After a traditional cigarette is lit, the tobacco continues to release smoke due to incomplete combustion; heated tobacco products use high temperature to roast the tobacco bomb to release smoke. These are the main ways to produce CO in the smoke. Excessive inhalation of CO is harmful to the human body.

[0003] Common ways of adsorbing CO in the cigarette industry include physical interception of filters and adsorption of functional particles. Physical interception is when smoke passes through the filter, CO flows inside the filter, and constantly collides with the filter tow during its movement, thus being intercepted; functional particle adsorption, the particles used are mostly porous particles, which have the characteristics of many internal channels, large specific surface area, and strong adsorption capacity. When CO flows in the internal channels, due to the long movement path, the kinetic energy is consumed and retained inside the functional particles, thus being adsorbed and not inhaled into the mouth.

[0004] Both of the above methods have disadvantages: the physical interception method has low interception efficiency because CO is a small molecule, and the gaps between the tow fibers in the filter are large, so CO can pass through the gaps and cannot be intercepted; the functional particles are not selective in their adsorption. While adsorbing CO, they also adsorb most of the smoke substances, which reduces the smoke quality and affects the smoking taste. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to disclose a ternary composite filter rod comprising cuprous ion-based MOFs gel particles with CO specific adsorption capacity.

[0006] Technical Solution

[0007] A ternary composite filter rod comprising cuprous ion-based MOFs gel particles with CO-specific adsorption capacity, wherein the composite particles are evenly spread in an opened tobacco filament bundle, rolled into a particle filter rod through a molding paper, and then composited with filter rods 1 and 2, wherein the composite particles are cuprous ion-based MOFs particles with a phase change gel wrapped on the surface, and the addition amount thereof is 0.1-3 mg / mm, and the lengths of the particle filter rod, the filter rod 1 and the filter rod 2 are 5-20 mm respectively.

[0008] In a preferred disclosed example of the present invention, the cuprous ion-based MOFs composite particles with the phase change gel coated on the surface are prepared by uniformly spraying the heated and melted phase change gel on the surface of the cuprous ion-based MOFs material particles.

[0009] In a preferred disclosed example of the present invention, the particle size of the composite particles is 30 to 120 meshes.

[0010] In a preferred disclosed example of the present invention, in a thin filter rod with a circumference of less than or equal to 17 mm, the added amount of the composite particles is 0.1 to 1.2 mg / mm.

[0011] In a preferred disclosed example of the present invention, in a medium-branch filter rod with a circumference greater than 17 mm and less than or equal to 22 mm, the added amount of the composite particles is 0.1 to 2.2 mg / mm.

[0012] In a preferred disclosed example of the present invention, in a coarse filter rod with a circumference greater than 22 mm, the added amount of the composite particles is 0.1 to 3 mg / mm.

[0013] In a preferred disclosed example of the present invention, the particle filter rod is near the tobacco end, filter rod 1 is a non-empty tube and non-particle filter rod, and filter rod 2 is a non-particle filter rod near the lip end.

[0014] In a preferred disclosed example of the present invention, the particle filter rod is near the tobacco end, filter rod 1 is an empty tube type or a particle type filter rod, and filter rod 2 is a filter rod near the lip end, a non-particle type and a non-empty tube type.

[0015] In the preferred disclosed example of the present invention, the filter rod 1 is a filter rod near the tobacco end, which is of any type; the particle filter rod is in the middle, and the filter rod 2 is a filter rod near the lip end, which is non-particle type and non-empty tube type.

[0016] In a preferred disclosed example of the present invention, the tobacco filament bundle is cellulose acetate or polypropylene filament bundle.

[0017] The cuprous ion-based MOFs-gel material with CO specific adsorption disclosed in the present invention is prepared by mixing a cuprous ion-based MOFs material and a phase change gel in a mass ratio of 30-60:60-100, wherein the cuprous ion-based MOFs is a network metal organic framework material, i.e., Cu(I)-MOFs; the phase change gel is composed of a phase change gel, a curing agent and a lubricant, and the mass ratio of the phase change gel: the curing agent: the lubricant is 70-90:15-30:10-15.

[0018] In a preferred disclosed example of the present invention, the phase change gel is composed of phase change gel: curing agent: lubricant in a mass ratio of 90:15:10.

[0019] In the preferred disclosed examples of the present invention, the phase change gel includes but is not limited to one or more of polyethylene glycol (PEG), gelatin, paraffin-graphite composite, and stearic acid-bentonite nano-mixture.

[0020] In a preferred disclosed example of the present invention, the phase change gel is polyethylene glycol (PEG) with a molecular weight of 4000 and 6000, and the mass ratio of PEG-4000:PEG-6000 is 6-9:1-4.

[0021] Furthermore, the phase change gel has a mass ratio of PEG-4000:PEG-6000 of 8:2.

[0022] In the preferred disclosed examples of the present invention, the curing agent includes but is not limited to one or more of glyceryl monostearate and glyceryl tristearate.

[0023] Furthermore, the curing agent is glyceryl monostearate.

[0024] In a preferred disclosed example of the present invention, the lubricant includes but is not limited to one or more of hydrogenated vegetable oil, propylene glycol, beeswax, and palm wax.

[0025] In a preferred disclosed example of the present invention, the lubricant is hydrogenated vegetable oil and beeswax, and the mass ratio of hydrogenated vegetable oil: beeswax is 1-3:7-9.

[0026] Furthermore, the lubricant is hydrogenated vegetable oil and beeswax, and the mass ratio of hydrogenated vegetable oil to beeswax is 2:8.

[0027] The composite material disclosed in the present invention has a softening temperature between 45 and 55°C. When the temperature exceeds 55°C, the composite material begins to melt. When the temperature exceeds 65°C, the composite material completely melts, and the cuprous ions (Cu + )-based MOFs materials are completely exposed to flue gas.

[0028] The present invention defines the CO adsorption rate as:

[0029]

[0030] Beneficial Effects

[0031] The composite filter stick disclosed in the present invention has a simple preparation process and does not require modification of the existing filter stick forming equipment. The composite filter stick prepared can efficiently adsorb CO in smoke and significantly reduce the content of CO in smoke entering the oral cavity, with an adsorption rate of more than 15%. Due to the thermal sensitivity of the phase change gel in the cuprous ion-based MOFs-gel composite particle material, the smoke temperature can be significantly reduced, but the effect on the taste sensory organ is not significant, and it has an obvious harm reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Schematic diagram of the ternary composite filter rod structure containing cuprous ion-based MOFs gel particles with CO specific adsorption capacity Figure 1 ;

[0033] Figure 2 Schematic diagram of the ternary composite filter rod structure containing cuprous ion-based MOFs gel particles with CO specific adsorption capacity Figure 2 ;

[0034] Figure 3 . A ternary composite filter rod containing cuprous ion-based MOFs gel particles having a CO specific adsorption capacity;

[0035] Figure 4 . A particle capsule empty tube ternary composite filter rod comprising cuprous ion-based MOFs gel particles having CO specific adsorption capacity;

[0036] Figure 5 . A particle groove hollow tube ternary composite filter rod comprising cuprous ion-based MOFs gel particles having CO specific adsorption capacity;

[0037] Figure 6 . A particle degradation tube ternary composite filter rod comprising cuprous ion-based MOFs gel particles having CO specific adsorption capacity;

[0038] Figure 7 . A particle degradation tube capsule ternary composite filter rod comprising cuprous ion-based MOFs gel particles having CO specific adsorption capacity;

[0039] Among them, the various components are: 1. molding paper; 2. particle filter rod; 3. filter rod 1; 4. filter rod 2; 5. acetate filter rod; 6. empty tube filter rod 1; 7. capsule filter rod; 8. empty tube filter rod 2; 9. groove filter rod; 10. empty tube filter rod 3; 11. degradation tube filter rod; 12. paperless rod; 13. capsule filter rod 2. DETAILED DESCRIPTION

[0040] The present invention is described in detail below in conjunction with the embodiments so that those skilled in the art can better understand the present invention, but the present invention is not limited to the following embodiments.

[0041] Example 1

[0042] A ternary composite filter rod comprising cuprous ion-based MOFs gel particles with CO specific adsorption capacity, wherein the composite particles are evenly spread in an opened tobacco filament bundle, rolled with a forming paper 1 to form a particle filter rod 2, and then composited with a acetate filter rod 5 and an empty tube filter rod 6 ( Figure 3 ), wherein the particle filter rod 2 is near the tobacco end and has a length of 5 mm, the composite particles are cuprous ion-based MOFs particles with a surface coated with phase change gel, and the addition amount is 0.1-2.2 mg / mm, the empty tube filter rod 6 is near the lip end and has a length of 10 mm, the acetate filter rod 5 has a length of 15 mm, and the filter rod diameter is 5.85 mm.

[0043] When the flue gas passes through, the phase change gel melts and the cuprous ion-based MOFs material is exposed to the flue gas, using the heat carried by the flue gas to complete the adsorption of CO.

[0044] By the same steps, a ternary composite filter rod with the same structure as that of the present embodiment was prepared as control sample 1, wherein the added particles were inert particles.

[0045] Example 2

[0046] A ternary composite filter rod comprising a cuprous ion-based MOFs gel material having a specific CO adsorption capacity, wherein the composite particles are evenly spread in an opened tobacco filament bundle, rolled with a forming paper 1 to form a particle filter rod 2, and then composited with a capsule filter rod 7 and an empty tube filter rod 8 ( Figure 4 ), wherein the particle filter rod 2 is 10 mm long near the tobacco end, the composite particles are cuprous ion-based MOFs particles coated with phase change gel on the surface, the addition amount is 0.1-1.2 mg / mm, the empty tube filter rod 8 is 10 mm long near the lip end, the capsule filter rod 7 is 10 mm long, and the filter rod diameter is 5.35 mm.

[0047] When the flue gas passes through, the phase change gel melts and the cuprous ion-based MOFs material is exposed to the flue gas, using the heat carried by the flue gas to complete the adsorption of CO.

[0048] By the same steps, a ternary composite filter rod with the same structure as that of the present embodiment was prepared as control sample 2, wherein the added particles were inert particles.

[0049] Example 3

[0050] A ternary composite filter rod comprising a cuprous ion-based MOFs gel material having a specific CO adsorption capacity, wherein the composite particles are evenly spread in an opened tobacco filament bundle, rolled with a forming paper 1 to form a particle filter rod 2, and then composited with a groove filter rod 9 and a hollow tube filter rod 10 ( Figure 5 ), wherein the particle filter rod 2 is 7 mm long near the tobacco end, the composite particles are cuprous ion-based MOFs particles coated with phase change gel on the surface, the addition amount is 0.1-2.2 mg / mm, the empty tube filter rod 10 is 10 mm long near the lip end, the groove filter rod 9 is 13 mm long, and the filter rod diameter is 6.35 mm.

[0051] When the flue gas passes through, the phase change gel melts and the cuprous ion-based MOFs material is exposed to the flue gas, using the heat carried by the flue gas to complete the adsorption of CO.

[0052] By the same steps, a ternary composite filter rod with the same structure as that of the present embodiment was prepared as control sample 3, wherein the added particles were inert particles.

[0053] Example 4

[0054] A ternary composite filter rod comprising a cuprous ion-based MOFs gel material having a specific CO adsorption capacity, wherein the composite particles are evenly spread in an opened tobacco filament bundle, rolled with a forming paper 1 to form a particle filter rod 2, and then composited with a degradation tube filter rod 11 and a paperless filter rod 12 ( Figure 6 ), wherein the degradation tube filter rod 11 is 13 mm long near the tobacco end, the particle filter rod 2 is in the middle and is 10 mm long, the composite particles are cuprous ion-based MOFs particles with a surface coated with phase change gel, the addition amount is 0.1-3 mg / mm, the paperless filter rod 12 is 7 mm long near the lip end, and the filter rod diameter is 7.65 mm.

[0055] When the flue gas passes through, the phase change gel melts and the cuprous ion-based MOFs material is exposed to the flue gas, using the heat carried by the flue gas to complete the adsorption of CO.

[0056] By the same steps, a ternary composite filter rod with the same structure as that of the present embodiment was prepared as control sample 4, wherein the added particles were inert particles.

[0057] Example 5

[0058] A ternary composite filter rod comprising a cuprous ion-based MOFs gel material having a specific CO adsorption capacity, wherein the composite particles are evenly spread in an opened tobacco filament bundle, rolled with a forming paper 1 to form a particle filter rod 2, and then composited with a degradation tube filter rod 11 and a capsule filter rod 13 ( Figure 7 ), wherein the degradation tube filter rod 11 is 13 mm long near the tobacco end, the particle filter rod 2 is in the middle and is 10 mm long, the composite particles are cuprous ion-based MOFs particles with a surface coated with phase change gel, and the addition amount is 0.1 to 3 mg / mm, the capsule filter rod 13 is 7 mm long near the lip end, and the filter rod diameter is 7.05 mm.

[0059] When the flue gas passes through, the phase change gel melts and the cuprous ion-based MOFs material is exposed to the flue gas, using the heat carried by the flue gas to complete the adsorption of CO.

[0060] By the same steps, a ternary composite filter rod with the same structure as that of the present embodiment was prepared as control sample 5, wherein the added particles were inert particles.

[0061] The prepared samples and control samples were placed in an automatic smoking machine, the number of puffs and the smoke inhalation volume were set the same, and the CO content in the smoke was measured. The test results are as follows:

[0062] Table 1. CO adsorption rate

[0063]

[0064] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the specification of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A ternary composite filter rod containing cuprous ion-based MOFs gel particles, wherein the composite particles are evenly spread on an opened tobacco filament bundle, rolled into a particle filter rod (2) by a forming paper (1), and then composited with a filter rod 1 (3) and a filter rod 2 (4), characterized in that: The composite particles are cuprous ion-based MOFs particles with a phase change gel coated on the surface, and the addition amount thereof is 0.1 to 3 mg / mm, wherein the cuprous ion-based MOFs composite particles with a phase change gel coated on the surface are prepared by uniformly spraying the heated and melted phase change gel on the surface of cuprous ion-based MOFs material particles, wherein the cuprous ion-based MOFs material and the phase change gel are mixed in a mass ratio of 30 to 60:60 to 100, and the cuprous ion-based MOFs are a mesh metal organic skeleton material, namely Cu(I)-MOFs; the phase change gel is composed of phase The phase change gel is composed of a phase change gel, a curing agent and a lubricant, wherein the mass ratio of phase change gel: curing agent: lubricant is 70-90:15-30:10-15, the phase change gel comprises one or more of polyethylene glycol PEG, gelatin, paraffin-graphite composite, stearic acid-bentonite nano-mixture; the curing agent comprises one or more of monostearate glyceryl, tristearate glyceryl; the lubricant comprises one or more of hydrogenated vegetable oil, propylene glycol, beeswax, palm wax; the lengths of the particle filter rod (2), filter rod 1 (3) and filter rod 2 (4) are 5-20 mm respectively.

2. The ternary composite filter rod comprising cuprous ion-based MOFs gel particles according to claim 1, characterized in that: The particle size of the composite particles is 30 to 120 meshes.

3. The ternary composite filter rod comprising cuprous ion-based MOFs gel particles according to claim 1, characterized in that: In a thin filter rod with a circumference of less than or equal to 17 mm, the added amount of the composite particles is 0.1 to 1.2 mg / mm.

4. The ternary composite filter rod comprising cuprous ion-based MOFs gel particles according to claim 1, characterized in that: In a medium-branch filter rod with a circumference greater than 17 mm and less than or equal to 22 mm, the added amount of the composite particles is 0.1 to 2.2 mg / mm.

5. The ternary composite filter rod comprising cuprous ion-based MOFs gel particles according to claim 1, characterized in that: In a coarse filter rod with a circumference greater than 22 mm, the added amount of the composite particles is 0.1 to 3 mg / mm.

6. The ternary composite filter rod comprising cuprous ion-based MOFs gel particles according to claim 1, characterized in that: The phase change gel is composed of phase change gel: curing agent: lubricant in a mass ratio of 90:15:

10.

7. The ternary composite filter rod comprising cuprous ion-based MOFs gel particles according to claim 1, characterized in that: The phase-change gel is polyethylene glycol PEG with a molecular weight of 4000 and 6000, and the mass ratio of PEG-4000:PEG-6000 is 6-9:1-4.

8. The ternary composite filter rod comprising cuprous ion-based MOFs gel particles according to claim 7, characterized in that: The phase change gel has a mass ratio of PEG-4000:PEG-6000 of 8:

2.

9. The ternary composite filter rod comprising cuprous ion-based MOFs gel particles according to claim 1, characterized in that: The solidifying agent is glyceryl monostearate.

10. The ternary composite filter rod comprising cuprous ion-based MOFs gel particles according to claim 1, characterized in that: The lubricant is hydrogenated vegetable oil and beeswax, and the mass ratio of hydrogenated vegetable oil to beeswax is 1-3:7-9.

11. The ternary composite filter rod comprising cuprous ion-based MOFs gel particles according to claim 10, characterized in that: The lubricant is hydrogenated vegetable oil and beeswax, and the mass ratio of hydrogenated vegetable oil to beeswax is 2:

8.

12. The ternary composite filter rod comprising cuprous ion-based MOFs gel particles according to claim 1, characterized in that: The particle filter rod (2) is near the tobacco end, the filter rod 1 (3) is a non-empty tube and non-particle filter rod, and the filter rod 2 (4) is a non-particle filter rod near the lip end.

13. The ternary composite filter rod comprising cuprous ion-based MOFs gel particles according to claim 1, characterized in that: The particle filter rod (2) is near the tobacco end, the filter rod 1 (3) is an empty tube type or particle type filter rod, and the filter rod 2 (4) is a filter rod near the lip end, a non-particle type and a non-empty tube type.

14. The ternary composite filter rod comprising cuprous ion-based MOFs gel particles according to claim 1, characterized in that: The filter rod 1 (3) is a filter rod of any type near the tobacco end; the particle filter rod (2) is in the middle; the filter rod 2 (4) is a filter rod near the lip end, non-particle type and non-empty tube type.

15. The ternary composite filter rod comprising cuprous ion-based MOFs gel particles according to claim 1, characterized in that: The tobacco filament bundle is cellulose acetate or polypropylene filament bundle.

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