Wrap for smoke article with improved filler

FIELD: smoke articles, in particular, wrap for reducing gaseous components in smoke.

SUBSTANCE: wrap may comprise cigarette paper containing filler produced from ammonium-containing compound for reducing content of aldehydes in smoke. During combustion/pyrolysis of smoke article, filler of ammonium-containing compound releases ammonia, which may chemically react with aldehydes in tobacco smoke and/or modify combustion/pyrolysis reaction and, accordingly, reduce initial formation of aldehydes for selective reduction of content of such aldehydes in smoke expired by smoker. Ammonium-containing compound may be magnesium phosphate and ammonia phosphate used individually or in combination with one or more fillers, such as calcium carbonate.

EFFECT: increased efficiency by reducing content of gaseous components in smoke produced during using of smoke article.

27 cl, 3 dwg, 1 tbl

 

The scope of the invention

The present invention relates to wrappers of Smoking articles. In particular, the invention relates to ammoniagenesis compounds used as new fillers in paper wrapper for Smoking articles that are effective in the selective reduction of the content of gaseous components, such as low molecular weight aldehydes in the smoke from the use of such tobacco products.

Prerequisites to the creation of inventions

Paper wrapper for Smoking articles described in U.S. patents№№2673565, 2801636, 3744496, 3931824, 4129134, 4225636, 4231377, 4420002, 4433697, 4450847, 4622983, 4805644, 4881557, 4911184, 4915118, 4924888, 4941485, 4941486, 4984589, 4998542, 4998543, 5060674, 5092306, 5105837, 5103844, 5121759, 5131416, 5220930, 5228463, 5450862 and 5540242, descriptions of which are introduced here by reference.

Of the above patents in patent No. 5060674 describes how to add in cigarette paper monopotassium phosphate ammonium as a combustion modifier; in patent No. 4998543 - add monopotassium phosphate of ammonia in cigarette paper to reduce the formation of stripes on the outside of the paper due to condensation on the inside of the paper after the release of smoke; in patent No. 4450847 - adding halides, sulfates and phosphates, such as ammonium chloride, magnesium chloride, magnesium sulfate, acid sulfate, shumilkin) and disodium phosphate in cigarette paper as flame retardants; and in patent No. 5540242 add alginates, including ammonium alginate, cigarette paper as a film-forming additives to reduce the side stream smoke.

In U.S. patent No. 2815760 describes a filter for tobacco smoke with ion-exchange substance which chemically reacts with carbonyl compounds, such as aldehydes in the filter and keeps them. In U.S. patent No. 3685070 describes a filter for tobacco smoke, containing the lipid soluble antioxidant N/N’-diphenyl-p-phenylenediamine to reduce the content of toxic substances in tobacco smoke. In U.S. patent No. 3716063 describes a filter for tobacco smoke, which selectively removes volatile aldehydes; filter made of finely porous material, such as alumina, impregnated containing buffer polyallylamine. In U.S. patent No. 3878853 describes a filter for cigarettes containing cationic component and high-molecular polyamines component to remove cytotoxic compounds from tobacco smoke.

Although the prior art proposals for modification of filters for cigarettes to remove aldehydes from the main thread of smoke, such proposals lead away from the present invention, according to which the wrapper tobacco Smoking products is effective to reduce the content of hazoor the knowledge components in the main stream smoke.

Summary of the invention

According to the invention offers a wrapper for Smoking articles in which the tobacco is retained by the wrapper, the wrapper contains cellulosic sheet material and at least one filler therein, effective in the selective reduction of the content of gaseous components in the smoke produced upon combustion/pyrolysis of Smoking products. According to a preferred variant of the invention, the wrapper contains cigarette paper filled with ammoniagenesis compounds in amounts effective to reduce the content of aldehydes in the smoke produced upon combustion/pyrolysis of Smoking products. Filled ammoniagenesis connection is preferably inorganic mixed metal salt and ammonium with low solubility, such as magnesium phosphate and ammonium. When using such salts as filler in the manufacture of wrappers for Smoking products should be applied in an amount of from about 10% to about 60% of the final weight of the wrapper, preferably from about 20 wt.% to about 50 wt.% calculated on the total weight of the wrapper.

In the wrappers of Smoking articles according to this invention ammoniagenesis compounds can be used as the sole filler or in a mixture with other filler and, known from the prior art. The filler may contain two or more different ammoniagenesis compounds. The wrapper may have a surface density of from about 15 grams per square meter to about 75 grams per square meter, preferably from about 20 to about 50 grams per square meter, and a porosity from about 2 units of CORESTA" to 200 "CORESTA", preferably from about 10 units of CORESTA" to about 110 units "CORESTA". The wrapper may contain flammable additives in an amount of from about 2 wt.% to about 15 wt.% calculated on the total weight of the wrapper. In addition, the wrapper according to the invention can have a normal odnokletochnue structure, mnogokletochnoi structure or a multilayer odnokletochnue structure. Mnogokletochnye structure or multilayer structure can have different content ammoniagenesis fillers. If desired, the wrapper may be perforated and/or contain a film-forming agent. In a preferred embodiment of the invention, the wrapper containing the filler of ammoniagenesis connection, is used to place the tobacco in the Smoking product, which upon combustion/pyrolysis leads to a decrease in the amount of at least one low molecular weight aldehyde in the smoke.

Brief description of drawings

Figure 1 - graph of the relationship between the reduction of the content of aldehydes and ammonia in cigarette papers, containing magnesium phosphate and ammonium, according to the invention,

figure 2 is a view in isometric of a traditional cigarette with one wrap according to the invention, and

figure 3 is a view in isometric less than traditional cigarettes, with more than one wrapper according to the invention.

Detailed description of preferred embodiments of the invention

According to the invention serves wrap Smoking articles in which the filler wrapper is effective in reducing the content of gas components in the smoke produced upon combustion/pyrolysis of Smoking products. The wrap is preferably a paper wrapper, the filler in a paper wrapper is effective in reducing the content of aldehydes in the main stream tobacco smoke upon combustion/pyrolysis of Smoking products.

Wrap according to the invention can be made by conventional paper-making processes in which aqueous suspension containing cellulosic material, individually or in mixture with other fillers add soluble filler, effective to reduce the content of gaseous components in the smoke.

According to the first aspect of the invention provides fillers for wrappers of Smoking articles in which the wrappers are held tobacco and Tabacalera ve is esta. Used herein, the term "tobacco" means not only the filling of the leaf, usually found in cigarettes, but also expanded tobacco, extruded tobacco, reconstituted tobacco, tobacco vein, tobacco substitutes and synthetic tobacco, and mixtures thereof. The term "tobacco stick" means any essentially cylindrical, Tabacalera Smoking article such as a cigarette.

According to the first variant embodiment of the invention the physical and chemical properties of the material of the filler used in the manufacture of wrappers of Smoking products, select and apply to reduce the content of aldehydes in the smoke produced during the combustion/pyrolysis Smoking products. According to a preferred variant of the invention, the filler in the paper contains ammoniagenesis compound that when heated, the ammonia, which can chemically react with aldehydes in tobacco smoke and/or change of combustion/pyrolysis, thereby reducing the initial formation of aldehydes and thus reducing the flow of aldehydes to the smoker.

Preferred ammoniagenesis compound is inorganic mixed metal salt and ammonium, as, for example, a mixed salt of alkaline earth metal and ammonium, for example, MgNH4PO4· HN2O, where "x" is from 1 to 6. Preferably, ammoniagenesis connection had low solubility in water, so that it was compatible with conventional papermaking processes, for example, the filler is essentially insoluble in water dispersion containing the ingredients of paper, as, for example, flax, etc. So ammoniagenesis connection must be sufficiently stable in the papermaking process to remain unchanged, as the filler in the finished paper products. This means that sufficient heat resistance to withstand stages of drying in the papermaking process. For conventional paper-making processes are well suited phosphate magnesium and ammonium and its hydrates, produce ammonia during Smoking so that a much reduced content of certain low molecular weight aldehydes in the smoke. Phosphate of magnesium and potassium is isostructural with magnesium phosphate and ammonium and can form solid solutions with him. Such solid solutions are also effective in reducing the content of aldehydes in the smoke, although in the best embodiments for carrying out the invention, the content of potassium in these solid solutions is minimized.

Filler with ammoniagenesis connection, in addition, may contain one or more of the following miner is lnyh phases: Tamarit, struvite, hannya, sartelet, mundrabilla and spaceit.

Ammoniagenesis compounds that are considered useful as fillers differ in surface area and particle size (for the most part with micron size), have a corresponding opacity, have low solubility in water (required in the manufacture of paper) and have other properties that are considered desirable fillers for cigarette papers. Filler designed for cigarette paper, preferably has a particle size less than 25 microns, more preferably less than 10 microns.

When used as filler in the manufacture of wrappers for Smoking articles preferred amount of filler from ammoniagenesis compound is from about 10% to about 60% of the final weight of the wrapper, more preferably from about 20 wt.% to about 50 wt.%. This percentage is called the dosage of filler. Ammoniagenesis connection may be the only filler or it can be mixed with one or more other fillers in paper. In the case of mixtures part dosing filler, for example up to 60 wt.%, may contain one or more compounds from inorganic carbonate, an inorganic hydroxide, an inorganic oxide or reorganizes the CSOs phosphate. Examples of such fillers are, for example, calcium carbonate, magnesium hydroxide, magnesium oxide, carbonates of magnesium and titanium dioxide, as well as other fillers known in the prior art.

Wrapper containing the fillers according to the invention can have a surface density of from about 15 to about 75 g/m2and may have a porosity of from about 2 to about 200 cubic centimeters per minute per square centimeter, measured according to the method of "CORESTA" ("unit CORESTA"). The most preferred surface density is from about 20 to about 50 g/m2and the most preferred porosity is from about 10 to about 110 units "CORESTA".

To regulate or control the speed of combustion of the resulting Smoking products in the wrap can be applied combustible additives, such as alkali metal salts and carboxylic acids or phosphoric acids. For example, combustible additives can be applied in amounts from about 2% to about 15% by weight of the wrapper. Examples of combustible additives are sodium fumarate, sodium citrate, potassium citrate, sodium succinate, secondary acid potassium phosphate and monopotassium phosphate potassium.

For making wrappers, containing the fillers according to the invention, using conventional technology of manufacturing cigarette paper with the inclusion of filler from Ammon is isomerases compounds according to the invention instead of, or in conjunction with a conventional filler for cigarette paper, as, for example, calcium carbonate. Paper wrappers can be made from linen, cellulose or other vegetable fibres. In addition, the paper wrapper can have a normal odnokletochnue structure, mnogokletochnoi structure or a multilayer odnokletochnue structure

To demonstrate practical and beneficial results of this invention were made of cigarette paper from multiple tracks with different fillings and different total weight of the filler per square meter of paper. The total weight of the filler per square meter of the paper was controlled by adjusting the content of the filler and/or surface density (thickness) of paper. Examples are paper both manual and machine production, as well as cigarette hand and machine production. Used the structure of the cigarette was less traditional, as shown in figure 3, the cigarette can be used with electronic Smoking device described in U.S. patent No. 5692525, the entire contents of which is incorporated here by reference.

Formaldehyde and acetaldehyde in the main stream smoke of cigarettes made with paper wrappers according to this invention, as the outer paper wrapper (71) cigarettes were analyzed using the method of analysis only on the mA and using similar conditions area, compared with the control cigarettes similar structures in which the outer paper wrap contains about 35 wt.% calcium carbonate in the surface density of 28 g/m2and porosity of 46 units "CORESTA". Table 1 shows various samples of cigarettes with descriptions of the paper, including the type of filler, its content, the surface density and the amount of ammonia emitted per square centimeter of paper, and also indicates the percentage reduction in the content of formaldehyde and acetaldehyde in the main stream smoke of each cigarette as compared to the control cigarette. As shown in table 1, using ammoniagenesis compounds of magnesium phosphate and ammonium as filler in cigarette papers surprising and unexpected results in the reduction of the formaldehyde content in the main stream of smoke up to 91%.

Table 1
Sample cigarettesPaper outer wrapper% reduction in the main stream smoke*
 Filler% fillerSurface density (g/m2)Porosity (damage”CORESTA”)Ammonia (µmol/cm2 FormaldehydeAcetaldehyde
1MgNH4PO4·6H2O4025254.191%59%
225% MgNH4PO4·6H2O 75% of caso34025251.0without reducing5%
350% MgNH4PO4·6H2O 50% of caso14025242.048%30%
475% MgNH4PO4·6H2O 25% CaCO34025243.164%32%
5MgNH4PO4·6H2O4025204.191%33%
619 MgNH4PO4·5 MgKPO4·xH2O3035273.781%45%
719 MgNH4PO4·5 MgKPO4·xH2O4025273.5 89%51%
8MgKPO4·6H2O3035290.027%43%
9MgHPO4·3H2O4025310.042%42%
10MgNH4PO4.xH2O4025454.176%46%
11MgNH4PO4·xH2O3035274.372%56%
12MgNH4PO4·xH2O4025454.182%41%
1319 MgNH4PO4·5 MgKPO4·xH2O3447805.587%61%
14Mg(NH4)of 0.95K0,05PO4·xH2O3037554.585%48%
15Mg(NH4)of 0.95K0,05PO4 on; xH2O3545246.490%57%
16"Albacar" caso33037290.0without reducing11%
* The values are given for each sample are the average for three cigarettes smoked by electronic Smoking device using comparable energies.

Figure 1 shows a graph of the relationship between reduced levels of formaldehyde and acetaldehyde and free ammonia (µmol/cm2paper) in cigarette papers containing magnesium phosphate and ammonium according to the invention. As shown in figure 1, the percentage reduction in the content of formaldehyde and acetaldehyde in the main stream smoke increases with increasing free ammonia (released as a result of heating the filler paper in the form of magnesium phosphate and ammonium) per unit area of paper With increase in the content of the filler of magnesium phosphate and ammonium (free ammonia) formaldehyde suddenly decreases more than the content of acetaldehyde. Based on data from thermogravimetry/mass spectroscopy, during the combustion/pyrolysis of paper from the filler in the form of phosphate m is fester and ammonium, apparently, selects only ammonia and water, and causes reduction of the content of aldehydes in the smoke can be as chemistry and thermodynamics. The liberated ammonia can affect the content of aldehydes in the resulting smoke through a number of mechanisms that could act either independently or simultaneously. Although applicants do not wish to be bound by theory, they believe that among the possible mechanisms that can cause reduction of the content of aldehydes, there is a chemical reaction between ammonia and gaseous aldehydes, and the product (s) for a reaction may be less volatile to condense, to be caught in the ash wand and/or the filler of the cigarette. Another possible mechanism is that the change in the temperature of the combustion/pyrolysis and/or the presence of ammonia in the environment of the combustion/pyrolysis can, in the end, affect the initial formation of aldehydes formed during Smoking.

The cigarette wrapper according to the invention can have any desired pattern and/or one or more layers of fibers, for example, paper and/or tobacco-containing filler, effective in reducing the content of aldehydes. For example, the cigarette wrapper 2 may have a single layer 4 surrounding the tobacco filling 6, as shown in the view in partial section n is 2. Figure 3 shows a less traditional cigarette wrapper, this cigarette can be used with electronic Smoking device described in U.S. patent No. 5692525. Figure 3 shows one type of structure 100 cigarettes, which can be used with electronic Smoking device. As shown, the 100 cigarette contains tobacco stick 60 and the filter portion 62, United paper 64 mouthpiece. The filtration portion 62 preferably comprises a tubular free-flow filter element 102 and plug 104 to filter in the mouthpiece. Free-flow filter element 102 and plug 104 to filter in the mouthpiece can be joined together into an integrated tube 110 through the shim 112 to the tube. Tobacco wand 60 may have different execution and include one or more of the following elements: the outer cover 71, the other tubular free-flow filter element 74, a cylindrical tobacco filling 80, preferably wrapped in a wrapper 84 for the filling, tobacco sheet material or Mat 66 that contains the core non-woven material 68 and tobacco 70, and the free space 91. Free-flow filter element 74 provides structural integrity and support to United with the mouthpiece end 72 of the tobacco sticks 60. At the free end 78 of the tobacco sticks 60 tobacco sheet material 66 with NR the stone wrapper 71 is wrapped around a cylindrical tobacco filling 80. Tobacco stick may contain tobacco, mixture of different types and grades of tobacco, tobacco substitutes, etc. Filler according to the invention can be introduced into one or more layers 71, 84, 68, 70, or 66.

Although the invention is described with reference to preferred variants of its implementation, it is necessary to consider that for specialists in this area is the apparent ability to perform the various changes and modifications. Such changes and modifications should be considered as being within the scope of the patent claims of the invention defined in the attached claims.

1. A wrapper for Smoking articles in which the tobacco is retained by the wrapper containing cellulosic sheet material and at least one filler therein, including ammoniagenesis connection, while the filler is effective to reduce the content of gaseous components in the smoke produced upon combustion/pyrolysis of Smoking products.

2. Wrap according to claim 1, in which the filler comprising ammoniagenesis the compound is present in amounts effective to reduce the content of aldehydes in the main thread of smoke produced upon combustion/pyrolysis of Smoking products.

3. Wrap according to claim 1, in which the filler contains inorganic compound selected from the group consisting of the C inorganic carbonates, inorganic hydroxides, inorganic oxides and inorganic phosphates.

4. Wrap according to claim 2, in which the filler of ammoniagenesis compound is a phosphate of magnesium and ammonium or one of its hydrates.

5. Wrap according to claim 1, in which the content of the filler is from about 10 to about 60%, based on the total weight of the wrapper.

6. Wrap according to claim 1, which contains cigarette paper having one layer or many layers.

7. Wrap according to claim 1, having a surface density of from about 15 to about 75 g/m2and a porosity of from about 2 to about 200 units of CORESTA".

8. Wrap according to claim 1, having a surface density of from about 20 to about 50 g/m2and a density of from about 10 to about 110 units "CORESTA".

9. Wrap according to claim 1, which contains from about 2 to about 15 wt.% combustible additives.

10. Wrap according to claim 9, in which the combustible additive is a salt of an alkali metal and acid.

11. Wrap of claim 10 in which the alkali metal salt and acid is at least one substance selected from the group consisting of fumarata sodium, sodium citrate, potassium citrate, potassium succinate, secondary acid potassium phosphate and monopotassium phosphate potassium.

12. Wrap according to claim 2, in which the filler of ammoniagenesis compound is an inorganic ammonium salt and metal.

13. Wrap according to claim 2, in which quantities of ammoniagenesis compounds is from about 20 to about 50%, based on the total weight of the wrapper.

14. Wrap according to claim 1, which contains cigarette paper and in which the cellulosic material contains vegetable fiber.

15. Wrap according to claim 2, in which the filler of ammoniagenesis compound is a solid solution of magnesium phosphate and ammonium and magnesium phosphate and potassium or any of their respective hydrates.

16. Wrap according to claim 2, in which the filler of ammoniagenesis compounds contains at least one of the mineral phases: Tamarit, struvite, hannya, sartelet, mundrabilla and spaceit.

17. Wrap according to claim 2, in which the filler of ammoniagenesis compounds contains at least two different ammoniagenesis connection.

18. Wrap to claim 1, which contains cigarette paper surrounding a stick of tobacco cigarette.

19. Wrap according to claim 1, having a filler content decreases during the combustion/pyrolysis Smoking products gaseous component containing at least one low molecular weight aldehyde.

20. Wrap according to claim 1, which is made of a perforated and/or contains a film-forming agent.

21. Cigarette containing tobacco stick held by a paper wrapper, and an optional filter on one end of a cigarette, with a paper wrap contains cellulosic sheet material and at least one filler therein, including ammo isomerase connection, when this filler is effective to reduce the content of gaseous components in the smoke produced upon combustion/pyrolysis of the cigarette.

22. Cigarette according to item 21, in which the filler is present in amounts effective to reduce the content of aldehydes in the main thread of smoke produced upon combustion/pyrolysis of the cigarette.

23. Cigarette according to article 22, in which the filler consists essentially of magnesium phosphate and ammonium and/or phosphate of calcium and ammonium.

24. Cigarette containing tobacco sheet material surrounding a tobacco rod, a paper wrapper surrounding the tobacco sheet material, and an optional filter on one end of a cigarette, with a paper wrap contains cellulosic sheet material and at least one filler therein, including ammoniagenesis connection, while the filler is effective to reduce the content of gaseous components in the main thread of smoke produced upon combustion/pyrolysis of the cigarette.

25. Cigarette in paragraph 24, in which the filler is present in amounts effective to reduce the content of aldehydes in the main thread of smoke produced upon combustion/pyrolysis of the cigarette.

26. Sheet material containing cellulosic sheet material and the filler, in this case, at least part of the filler consists essentially of a phosphate MAGN what I and ammonium and/or phosphate of calcium and ammonium.

27. Cigarette containing tobacco sheet material surrounding a tobacco rod, a paper wrapper surrounding the tobacco sheet material, and an optional filter at one end of the cigarettes, with tobacco sheet material contains tobacco and at least one filler therein, including ammoniagenesis connection, while the filler is effective to reduce the content of gaseous components in the main thread of smoke produced upon combustion/pyrolysis of the cigarette.



 

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SUBSTANCE: the present innovation deals with technology to manufacture non-smoking tobacco products. Tobacco should be extracted with a non-polar extracting agent in supercritical state and water, aqueous extract should be concentrated, obtained extract and concentrate should be mixed with ashes, lime, vegetable oil, pectin and two fractions isolated out of Mortierella verticillata micromycete biomass according to the preset technique, and the mixture should be formed. The innovation enables to decrease nicotine losses and those of fragrance-forming substances and obtain the target product of balanced composition and organoleptic properties of conventional oily product.

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