Carbon-bearing compound for fabrication of non-combustible smoking product heating element

FIELD: tobacco industry.

SUBSTANCE: proposed is a carbon-bearing compound for fabrication of a non-combustible smoking product heating element. The compound contains calcium carbonate in an amount required for maintenance of the combustion temperature within the standard smoking range (1000°C max). Particle diametre of the calcium carbonate used varies from 0.08 mcm to 0.15 mcm. Additionally the compound contains a bonding agent in an amount specified.

EFFECT: reduced carbon monoxide emission during the smoking product heating element combustion.

4 cl, 2 dwg, 2 tbl, 10 ex

 

The present invention relates to carbon-containing composition for the heating element Smoking products non-combustion type.

Tobacco is a typical material that emits fragrance, which together with the smoke (aerosol)from the combustion of the tobacco leaf, is perceived, bringing pleasure, gustatory or olfactory organs.

In recent years created instead of or in addition to tobacco Smoking products non-combustion type to enjoy the aroma and taste of tobacco and the drinking of the aerosol without burning tobacco leaves. These tobacco products non-combustion type contain a heat source in the form of a heating element located on the end, and anomalopidae element, in which anomalopidae element hold in the media. The heating element is physically separated from aromachemicals element emitting an aerosol containing aromatic component. In Smoking products this type of heating element is ignited, and the heat released during combustion, heat anomalopidae element without it burning for aerosol formation containing aromatic component. The smoker inhales the aerosol to enjoy this fragrance.

As the heating element is used exclusively carbon-containing composition. Offered the ü various solutions to reduce the amount of carbon monoxide, released during the combustion of the heating element.

For example, in published application Japan 2-215373 disclosed a heating element containing the carbide of the metal, carbon and a binder. In this case, the heating element using the specified particle diameter and specific surface area of the carbide of the metal to increase the speed of combustion of the heating element and to reduce the number of allocated carbon monoxide.

In published application Japan 3-272675 disclosed a heating element containing a nitride of the metal, carbon and a binder. This heat source nitride of the metal, a metallic oxide is formed during combustion, and the metal oxide promotes the transition of carbon monoxide to carbon dioxide and thus reduce the amount of emitted carbon monoxide. In U.S. patent No. 4881556 disclosed carbonaceous fuel element containing carbon and a binder. In this fuel cell density and shape of the fuel element change so as to increase the combustibility of the fuel element, thereby reducing the amount of emitted carbon monoxide. Furthermore, in U.S. patent No. 5595577 disclosed carbon heating the composition comprising the metal oxide. In this composition the formation of carbon monoxide is reduced by deposition of metal oxide on heating the composition. In addition, in the published bid, medium, small the USA 2004/0173229 A1 disclosed a combustible material, containing ultrafine metal catalyst. In this fuel material on the metal catalyst for carbon monoxide is converted to carbon dioxide and thus reduce the amount of carbon monoxide.

In published application Japan 10-179112 disclosed the composition of the heating element, containing carbon, a binder, non-flammable graphite and potassium. In this arrangement the heating element, the amount of carbon monoxide is reduced by regulating the amount of potassium.

These prototypes carbonaceous heat sources are still insufficient from the viewpoint of reducing the amount of emitted carbon monoxide. In addition, the heating composition, which is used as a catalyst for the oxidation of carbon monoxide, has deficiencies related to the reliability Smoking products. In addition, the means for reducing the amount of carbon dioxide captured by the mouth, it is reasonable to provide filter located on a Smoking product and having a ventilating effect. However, the ventilating effect of the filter is greatly changes the flavor and taste of the product because of the dilution air.

The aim of the present invention is to provide a composition of the heating element Smoking products non-combustion type, whereby it is possible to further reduce the number of UGA the aqueous gas, from the combustion of the heating element, without compromising the stability of the combustion due to the use of additives, including catalyst for oxidation of carbon monoxide, and without changing the flavor and taste that is called ventilation of the filter.

The above problem is solved by the present invention through the carbon-containing composition for the heating element Smoking products non-combustion type, containing calcium carbonate in the amount of 30-55 wt.%.

In the drawings:

Figure 1 is a longitudinal section of a variant of run-Smoking products non-combustion type.

Figure 2 - diagram of the temperature inside the carbon-based heating the composition while it is burning to ensure the process area.

The following is a detailed description of the present invention.

Carbon-containing composition for the heating element Smoking products non-combustion type according to the invention contains 30-55 wt.% calcium carbonate (in the form of particles). If the amount of calcium carbonate is less than 30 wt.%, it is impossible to effectively reduce the amount of emitted carbon monoxide. On the other hand, if the amount of calcium carbonate exceeds 55 wt.%, the number of puffs when Smoking Smoking products is decreasing, which is practically unacceptable.

Usually carbon heater to the position according to the invention contains in addition to calcium carbonate and carbon binder for binding of calcium carbonate carbon. The amount of binder is preferably 5-15 wt.%. If the amount of the binder is less than 5 wt.%, then there is a tendency that with this binder is not provided a sufficient bonding strength. On the other hand, if the amount of the binder exceeds 15 wt.%, it reduces the amount of carbon contained in the composition of the heating element, resulting in a tendency for the fact that the heating composition is poorly lit.

As a binder can be used, for example, alginate salt, carboxymethyl cellulose or its salt, pectin or its salt, carrageenan or its salt and guar gum.

As mentioned above, carbon heating the composition according to the invention contains 30-55 wt.% calcium carbonate, and the rest is carbon, including the case where the heating composition comprises a binder. The source of carbon (in the form of particles) is not particularly limited, and can be used any known types of carbon.

When using carbon-based heating the composition according to the invention can reduce the amount of carbon monoxide produced during combustion of the heating element, to 60% or less compared to conventional Smoking products with carbonaceous heat source.

The mechanism whereby when using uglerodnogo the containing heating the composition according to the invention significantly reduces the amount of emitted carbon monoxide, not yet clarified. However, it is believed that one reason is that the combustion temperature of carbon heating the composition according to the invention is relatively low. This means that the temperature of the combustion of carbonaceous heating the composition according to the invention does not exceed 1000°C. it is well Known that the amount of emitted carbon monoxide increases with increasing combustion temperature. Since the highest temperature which can be achieved by burning carbon-based heating the composition according to the invention does not exceed 1000°C, it is considered that the amount of emitted carbon monoxide will be reduced considerably.

In this regard, when using calcium carbonate with a particle diameter of 0.08 to 0.15 μm as calcium carbonate in carbon heating the composition according to the invention, the amount of emitted carbon monoxide during combustion during Smoking can be further reduced in comparison with the case of using calcium carbonate with particle diameters greater than 18 microns.For example, if the amount of calcium carbonate in carbon heating the compositions are the same, when using calcium carbonate with particle diameters in the range of 0.08 to 0.15 μm can be reduced by the amount of emitted carbon monoxide up to 50-80% of the amount of carbon monoxide g is for, released during the use of calcium carbonate with particle diameters greater than 18 microns.

Carbon-containing composition according to the invention can be shaped in the form of a heating element according to the technology of molding such as extrusion molding.

The heating element is derived from a carbon-containing composition according to the invention can be used in various Smoking products non-combustion type in which the heating element and the material that produce the aerosol, are located so that they are physically separated from each other.

One example Smoking products non-combustion type, which uses a heating element consisting of a carbon-based heating the composition according to the invention is described below with reference to Figure 1.

Smoking product unburnable type 10 shown in figure 1, contains a section 11 that emit aerosol when heated, and the aerosol contains a flavoring component. In the example shown in Figure 1, highlighting the aerosol section 11 consists of a first emitting aerosol part 111 and the second emitting aerosol part 112. The first distinguishing aerosol part 111 contains a hollow cylinder made of heat-resistant material, such as aluminum or stainless steel, filled with, for example, screenname the tobacco leaves or tobacco crumbs. Second bideleux is I spray portion 112 contains the same hollow cylinder, filled, for example, tobacco crumbs. The first distinguishing aerosol part 111 and the second emitting aerosol part 112 are in contact with each other and are arranged in the longitudinal direction of the Smoking articles 10.

Carbon-based heating element 12, made of the composition according to the invention is located near the front end of the distinguishing aerosol section 11 (near the front end of the first emitting aerosol part 111) so that it was physically separated from the emitting aerosol section 11. The heat source 12 in the axial direction is made a through hole 121 for suctioning external air. In General, the outer circular surface of the heating element 12 is surrounded by a heat-resistant element 13 consisting, for example, fiberglass. In addition, it can be installed the usual filter 14 near the rear end of the distinguishing aerosol section 11 (near the rear end of the second emitting aerosol part 112). In addition, the entire outer cylindrical surface of the aerosol generating section 11, a filter 14 and a part of the circular surface of the heating element 12 surrounded by a heat-resistant element 13 is wrapped in a wrapping material 15 made of insulating material to form a single object. This Smoking product unburnable type 10 can have the appearance of a conventional cigarette.

The present image is a buy below described Examples, but it is not limited to these Examples.

Examples 1-4 and Comparative Example 1

Carbonaceous heat sources were molded from the compositions containing calcium carbonate (12-55 wt.%), binder (10 wt.%) and carbon (the other 78-35 wt.%), as shown in Table 1. Tobacco product design, presented in figure 1, were fabricated using carbon heat sources. Tobacco products were subjected to tests simulating Smoking, on an automatic Smoking machine under standard conditions area (standard method of measurement TIOJ, 4th edition, Appendix 1) and determined the total amount of solid particles (CCTC) and the number of allocated carbon monoxide. The results of the tests are presented in Table 1.

Table 1
The content of calcium carbonate, the amount allocated for carbon monoxide and the highest combustion temperature
The content of calcium carbonate, wt.%The total amount of solid particles (SCTC), mg/writeln. productThe number of allocated carbon monoxide, mg/writeln. productThe higher the combustion temperature, °C
Comparative example 1120,7210,31074,5
Example 1300,684,4968,4
Example 2400,433,3913,0
Example 3500,311,3838,6
Example 4550,240,8-

As shown in Table 1, using crack product, manufactured using the heating element of the carbon-containing composition containing at least 30 wt.% calcium carbonate, possibly a noticeable reduction in the number of emitted carbon monoxide in comparison with Smoking product, manufactured using carbon-based heating a composition containing less than 30 wt.% of calcium carbonate. In addition, when using Smoking products made with the use of carbon which contains the heating of the composition, containing at least 30 wt.% calcium carbonate tends to reduce SKETCH in comparison with Smoking product, manufactured using carbon-based heating a composition containing less than 30 wt.% of calcium carbonate.

In addition, it was identified the most high combustion temperature inside the heating element when the simulation area products of each of Examples 1-3 and Comparative Example 1 on an automatic Smoking machine under standard conditions area (standard method of measurement TIOJ, 4th edition, Appendix 1). Results are also presented in Table 1.

Figure 2 presents graphs of the temperature inside the carbon-based heating composition during combustion during Smoking. Figure 2 shows the test results: the curve and refers to Comparative example 1, curve b for Example 1, curve c is for Example 2 and d curve for Example 3. These curves are rejected from each other in figure 2, which clearly shows the temperature changes when testing each sample. Sharp peaks of each curve in figure 2 indicate tightening.

During combustion during Smoking Smoking products, which use carbon-based heating element, the temperature becomes highest in the vicinity of the third - fifth puffs. In case of using a carbon heater is the second song containing at least 30 wt.% calcium carbonate, the highest temperature does not exceed 1000°C. From the data presented in Table 1, it is obvious that the amount of emitted carbon monoxide are reduced considerably when the combustion temperature does not exceed 1000°C.

Examples 5-10

The heating element was prepared by changing the diameter of the particles of calcium carbonate, as shown in Table 2, at a fixed ratio of the components, i.e. with a fixed content of calcium carbonate at 30 wt.%, binder - 10 wt.% and carbon - 50 wt.%. Tobacco product design, presented in figure 1, were prepared using the resulting carbonaceous heat sources. Tobacco products were subjected to tests simulating Smoking, on an automatic Smoking machine under standard conditions area (standard method of measurement TIOJ, 4th edition, Appendix 1), and determined the amount allocated for carbon monoxide. The test results presented in Table 2.

Table 2
Particle diameter of calcium carbonate (calcium carbonate 40 wt.%) and the number of allocated carbon monoxide
The particle diameter, micronsThe share allocated for carbon monoxide, %
Example 524,04,0100
Example 618,04,0100
Example 710,5a 3.997,5
Example 83,23,382,5
Example 90,152,870,0
Example 100,082,3of 57.5

While the number of allocated carbon monoxide when using Smoking products made with the use of carbon-based heating a composition containing calcium carbonate with particle diameters not less than 18 μm, was taken as 100%when Smoking products made with the use of carbon-based heating a composition containing calcium carbonate with diameter h is STIC in the range of 0.15 to 0.08 μm, it was possible to reduce the number of allocated carbon monoxide to 70.0-57,5%.In other words, when the same content of calcium carbonate in carbon heat source, when using calcium carbonate with particle diameters in the range of 0.15 to 0.08 μm is possible to further reduce the amount of emitted carbon monoxide.

As mentioned above, according to the invention it is possible to create a composition of carbonaceous heating composition, which can reduce the amount of emitted carbon monoxide, at the same time eliminating the problems associated with the reliability of Smoking products caused by the use of additives such as catalyst for oxidation of carbon monoxide, as well as eliminating the problems associated with the fact that the aroma and taste of Smoking products change as a result of significant change in the design of Smoking articles, such as the use of ventilation of the filter, through the adoption of simple measures, namely, that the amount of calcium carbonate in the composition of the heating element for Smoking articles unburnable type must be in the range from 30 wt.% up to 55 wt.%.

Additional advantages and possible modifications should be understandable to experts in this field. Thus, the invention in its broader scope ogran is constrained by the specific details and presents representative variants, described in this document. In accordance with this can be carried out in various modifications without departure from the essence or scope of the invention defined in the attached claims, including equivalents.

1. Carbon-containing composition for the heating element Smoking products non-combustion type, containing calcium carbonate in the amount of 30-55 wt.%, the combustion temperature which in standard conditions area does not exceed 1000°C.

2. The composition according to claim 1, in which use calcium carbonate with particle diameters in the range of 0.08 to 0.15 μm.

3. The composition according to claim 1, additionally containing binder.

4. The composition according to claim 3, in which the binder is contained in an amount of 5-15 wt.%.



 

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