TW200304777A - Low sidestream smoke cigarette with combustible paper having a modified ash - Google Patents

Abstract

A low sidestream smoke cigarette comprises a conventional tobacco rod, and a combustible treatment paper having a sidestream smoke treatment composition. The treatment composition comprises in combination, an oxygen storage and a donor metal oxide oxidation catalyst and an essentially non-combustible finely divided porous particulate adjunct for said catalyst. Improvements are made in the treatment composition and/or the addition of metal oxides thereto to improve ash characteristics.

Description

200304777 (1) Description of the invention [Technical field to which the invention belongs] The present invention relates to reducing the sidestream smoke of burning cigarettes and other smoking products. In particular, the present invention relates to a cigarette paper, a cigarette wrapping paper, or a cigar wrapping paper or other similar tobacco products that can provide a better ashing effect while reducing the sidestream smoke visible to the naked eye. [Prior art] Various attempts have been made to reduce or eliminate the sidestream smoke emitted when cigarettes are burned. The applicant has also developed various systems that can control the sidestream of cigarettes. These results are detailed in Canadian Patents Nos. 2,054,735 and 2,057,962; U.S. Patent Nos. 5,462,073 and 5,709,228; and published international application WO 96 / 22031, WO 98/1 6 125 and WO 99/53778. At the same time, other sidestream smoke control systems have been developed that incorporate filter materials or adsorbent materials in tobacco, filters, or wrapping paper ^ These systems are exemplified in US Patent Nos. 2,755,207, 4,108,151, and 4,225,636 ; European Patent Applications Nos. 0740 907 and 0 251 254; and International Applications WO 97/2783 1 and WO 99/53778. US Patent No. 2,755,207 describes a low side smoke cigarette paper. The smoke generated when the cigarette paper was burned contained almost no unpleasant composition. The cigarette paper is a fibrous material and exists in a fibrous form, which contains fine particles of a mineral silicon catalyst tightly. This almost non-burning cigarette paper remains almost unchanged during combustion and functions as a catalyst that improves the burning rate of the cigarette paper. Appropriate silicon catalyst 4 200304777 contains acid-treated numbers < point soil, heat-treated kaolinite, and silicates (of which ll—some highly mobile hydrogen atoms). The material mixture includes aluminum oxide, zirconium, titanium, chromium oxide, and oxide. Other Shixi compounds include oxides of silicon: aluminum in a weight ratio of 9 "US Patent No. 4 ^ 08,151 discloses the use of a cigarette paper-the filter can selectively reduce the composition of tobacco smoke . Weight of at least 5000/0 aluminum filler in cigarette paper ^ Composition in organic vapor phase in tobacco smoke. As a result, the amount of sidestream smoke visible to the naked eye in the sea smoke can be identified. γ_Aluminium is generally the most familiar. It is ground to a very fine U.S. Patent No. 4,225,636 that can be passed through a 300-mesh screen. It is disclosed in cigarette paper that the composition of the organic vapor phase and the mass of the sidestream smoke are used. The carbon used can reduce the amount of fumes emitted from a burning cigarette. Activated carbon is preferably used as a carbon source. With the activity, the amount of sidestream smoke was slightly reduced. Up to 50% cigarette paper consists of 3 particles. The carbon-coated cigarette paper can be used as a wrapper to wrap a layer of traditional cigarette paper. European Patent Application No. 0 published on November 6, 1996 shows the use of zeolite in cigarette tobacco to change the mainstream cigarette smoke. In particular, remove various components from mainstream smoke, such as tar. Smoke can obviously change the composition of the sidestream smoke. The size of the fossil particles used is between 1.2 mm. -Natural or synthetic manganese silicon oxidation: »Mixed oxygen: 1 silicon and aluminum" Υ-aluminum filling 'organic vapor phase I: is used to reduce 丨 reducing the burning aroma is the active particles. Carbon, come Reduction method. In addition, lateral flow is visible to the eye, and carbon can make the naked eye. • The inner paper of ultra-fine carbon has the characteristics of No. 4907, and the Buddha stone in special grass is between 0.5 mm 5 200304777 and 20 phosphorus. In addition to neutral paper, the side material is 'loaded'. This European Patent Application No. 0251 254 discloses a method for using a surface area filler in cigarette paper. The filler generally has a surface area of at least m2. / g of crystals and solids. The fillings are preferably peroxides, carbonates, acid salts, sulfates, aluminates, and silicates. It reveals that pore-like fillings such as the stone of Buddha are not applicable to cigarettes The best substance in paper, and the function of the Buddha stone is similar to traditional chalk. Published international application WO 97/27831 discloses a dealuminated zeolite to adsorb non-polar molecules in polar liquids or polar gases or Weak polarity Molecular method. An effective amount of desalted zeolite powder can be incorporated into the cigarette paper to reduce the carbon monoxide content in sidestream smoke. The step of aluminizing zeolite can ensure the hydrophobicity of the zeolite to effectively adsorb and remove non-polar molecules or polar Weak molecules, even if they are located in water. Published International Application WO 99/53778 discloses a non-flammable paper processing material that reduces the sidestream smoke emitted by cigarettes. This sheet is used for As a wrapping paper, it is wrapped on the cigarette paper of traditional cigarettes. The package has high porosity, which allows the cigarette to burn at the traditional free burning rate or a speed close to the free burning rate, and at the same time the amount of smoke emitted by the naked eye can be seen It is also reduced. This non-flammable packaging paper contains non-flammable ceramic fibers, non-flammable activated carbon fibers and other standard materials used to make packaging paper. The packaging paper also contains zeolite or other similar adsorbent materials, and oxygen Oxygenation catalyst for the supply / storage of metal oxides. This non-flammable wrapping paper can control the sidestream smoke to an acceptable level. This wrapping paper 6 200304777 is still non-flammable, so there will still be a charred tube. U.S. Patent Nos. 4,433,697 and 4,915,117 disclose a method for incorporating ceramic fibers into incense paper. Manufacturing method. U.S. Patent No. 4,433,697 describes the incorporation of at least 1% (weight ratio) ceramic fibers and magnesia and / or wind oxidation lock fillers in incense paper to reduce visible emissions emitted by the incense burner. The amount of sidestream smoke. The provided fiber bundles, ceramic fibers and fillers are used to make a paper on a traditional paper machine. The ceramic fibers can be selected from polycrystalline aluminum, aluminum-silicate and amorphous aluminum . Magnesium monoxide and / or magnesium hydroxide fillers are used to coat and apply to paper fibers.

U.S. Patent No. 4,915,117 to Ito describes a non-flammable paper that can wrap tobacco. The thin paper is made of ceramic material and does not generate smoke when burned. This ceramic paper contains a woven or a non-woven ceramic fiber or a mixture of paper fiber and ceramic fiber. break down. The ceramic fiber may be selected from inorganic fibers such as silicon fiber, silicon-aluminum fiber, aluminum fiber, zirconium fiber, or aluminum borosilicate and glass fiber. This ceramic paper is prepared by bonding these materials together with an inorganic binder such as silicone or aluminum glue. The diameter of these fibers is preferably between 1 μm and 10 μm.巳 Published International Application υι / 41590 describes ways to reduce the sidestream smoke with ceramic materials in cigarette paper. The cigarette paper-incorporating tincture filling system uses a binder having a particle size between 2 and 90 m. The material has a preset shape, which can be spherical or nearly spherical or nearly oval or other irregular shapes close to these shapes. The ceramic filling, rounding or ° The ceramic filling 7 200304777 The filling can be aluminum, Silicon, monoaluminum-silicate, silicon carbide, stable or unstable oxidation faults, faults, ocherite, feldspar and the like. The amount of ceramic fillings provided in the paper is used to make more than 40% of the dry weight of the slime of cigarette paper. The binding agent may be an alginate, gum, cellulose, pectin, bactericide, or a Group I or Group π metal salt of these binding agents. The porosity of the obtained packaging paper is usually less than 200 grams dta (Coresta) units, and preferably between 2 and 200 grams dta. The density of the wrapping paper is 0.5-3.0 g / m2. The wrapping paper is preferably an outer wrapping paper of a porous non-suction tobacco rod (having a porosity of about 12,000 grams of units). It is known that a sol gel can be applied to traditional cigarette paper to reduce sidestream smoke. In particular, a solid gel formed of magnesium aluminate, calcium aluminate, titanium oxide, zirconia, and alumina, etc. Details are described in Canadian Patent No. 1,180,968 and Canadian Patent Application No. 2,010,575. Canadian Patent No. 1 ^ 0,968 describes magnesium hydroxide solid gel in the form of an amorphous gel as a cigarette paper filler composition to reduce the appearance of ashing and reduce sidestream smoke. The magnesium hydroxide solid gel system is coated or applied to cigarette paper paper fibers. Canadian Patent Application No. 2,010,575 describes the use of a gel produced by a sol gel process to control the combustion of a package of smoking articles. The gel can be applied to the paper fibers as a coating before the paper is made into a wrapping paper. This wrapping paper can be used to reduce the amount of sidestream smoke visible to the naked eye. The metal oxide in the gel may be an oxide of aluminum, titanium, zirconium, sodium, potassium, or calcium. The published German patent application DE 3508 127 describes a novel 200304777 cigarette, which is generated by a shower-like spark when smoking, which is achieved by incorporating thorium ferrite or thorium silicide in cigarette paper. When smoke is smoked, especially in dark places, burning cigarettes emit a bright spark effect. The hafnium ferrite particles incorporated into the cigarette paper have a size of about 20 μm. Catalysts have also been added directly to cigarette paper, such as described in Canadian No. 604,895 and U.S. Patent No. 5,386,838. Canadian Patent No. 604,895 describes the addition of platinum, osmium, osmium, osmium and ruthenium to cigarette paper. These metals are used as an oxidation catalyst for the vapor rising from the burning cigarette paper. Among them, platinum can provide the best effect. The metal particles in a suitable medium are dispersed on the surface of the paper before tobacco is used in the wrapping paper. U.S. Patent No. 5,386,838 describes a gel solution containing a mixture of iron and magnesium as a smoke suppressant. The smoke-suppressing composition is prepared by co-sinking iron and magnesium solution in the presence of a liquid. The iron ballast composition has a high volume of about 100 m2 / g to about 225 m2 / g at high temperatures of C to 500 ° C. This iron ball composition can be added to the pulp to make a smoking paper. This iron-magnesium composition clearly functions as an oxidation catalyst and has a low amount of smoke generated by a burning cigarette. This catalyst can also be used in termina, such as that described in U.S. Patent No. 4,248,251, which can be platinum in metal or salt form to tobacco. Platinum is used in combination with inorganic hydrochloric acid or nitrous acid. This type of nitrate includes bell, sodium, potassium, noodles, time, light, and general patents such as large palladium, processed urethanes, and the combination of the self-dissolving I 100 surface incense can be reduced to the application or cesium, 9 200304777 Town, Λϊε, plutonium, gill, lanthanum, plutonium, ', plutonium, plutonium, plutonium, plutonium, plutonium, bait, plutonium, manganese, iron, germanium, palladium, steel, aluminum, gallium, tin, bismuth, others Hydrates and mixtures thereof. Catalysts have also been used in smoke pipes to reduce sidestream smoke, such as described in published international application WO 98/16125. U.S. Patent No. 6,228,799 describes a composition comprising at least particles of hafnium oxide and zirconia, the particles generally having a hafnium surface area of 35 m2 / g or more. The composition is removed by co-precipitation of hafnium and zirconium from the solution at a high temperature, and then separated from each other, and dried at a temperature of 80-30 ° C, and then at 20 ° C to 1 It is made by calcification at a high temperature of 200 ° C. Catalytic materials have also been used to produce aerosol types of cigarettes, which do not generate sidestream smoke or mainstream smoke, but generate scented aerosols. This type of aerosol cigarette includes cigarettes detailed in U.S. Patent No. 5,040,551, U.S. Patent No. 5,137,034, and U.S. Patent No. 5,944,025, which use a catalyst to provide the necessary heat In order to generate and emit the desired aerosol. Such catalyst systems include oxides of thorium, palladium, or platinum. Various technologies have been proposed to control sidestream smoke, but none of them mention or suggest as shown in the present invention. A flammable cigarette paper that can be burned like a normal cigarette paper but does not affect the flavor of the cigarette and has a better ashing effect. [Content] According to various aspects of the present invention, an I-combination capable of reducing visible sidestream smoke is provided Cigarette paper and cigarettes with better ashing effect Wrapping paper, cigarettes, or other similar tobacco products. 10 200304777 According to one aspect of the present invention, in a low-side flow cigarette, it has a traditional straw and a flammable treated paper, the treated paper has The sidestream smoke treatment composition includes at least an oxidation catalyst for oxygen storage and supply of metal oxides and an almost incombustible porous particle as an auxiliary to the catalyst. The improvement includes the use of a mixed metal oxide As a solid solution composed of a catalyst and its auxiliary, the solid solution composed of the mixed metal oxide may be selected from hafnium oxide / hammer, hafnium oxide / alumina, hafnium oxide / magnesium oxide, hafnium oxide / titanium oxide, and oxidation In the group consisting of gadolinium / thorium oxide / tin oxide. According to another aspect of the present invention, a low-side smoke cigarette, which includes a cigarette, a tobacco rod and a combustible treated paper, the treated paper has one side Flue gas treatment composition 'which contains at least an emulsification catalyst for oxygen storage and supply of metal oxides, an auxiliary agent which is almost non-flammable to the catalyst, and A metal oxide that can improve the ashing effect. According to another aspect of the present invention, the auxiliary material may include a mixed metal oxide filler that can be used in combination with a boiling-based material. The zeolite is a base-based material The amount is preferably between about 0.01% and 35% (weight percent) of the total dry weight of the composition, but this amount can be even higher. A mixture of metal oxides or metal carbonates includes oxygen μ, tin oxide, A mixture of titanium oxide, oxidized ball, aluminum, hafnium oxide, and calcium carbonate. Metal oxides can be = various surface areas, and preferably a low surface area between 5m2 / ai5m2 / g ^ g20m / g or more Surface area. Rhenium oxide hydrate solid gel can be applied to auxiliary materials (eg, metal oxides) to improve catalytic activity. 200304777 According to another aspect of the present invention, the oxidation storage material for the oxygen storage and supply of metal oxides may include high surface area gasification plutonium, oxidation decoration on the deposition surface oxidation bromide, high surface area decoration / oxidation fault material, and others Shop for mixed oxides, deposit and dry on finely divided high or low surface area particles (e.g. hafnium oxide, oxidized ball, oxidized hammer, and titanium oxide and hafnium oxide particles immobilized on zeolite particles and mixtures)钸 Hydrate. The sidestream smoke treatment composition can be incorporated into a flammable treated paper, coated on a flammable treated paper, buried in a flammable treated paper, or a combination of the above steps. "The treated paper can be a double wrapper, and Treated with the same or different composition. One layer of wrapping paper can be conventional paper. Alternatively, the purpose of one layer of wrapping paper is to include a composition capable of reducing sidestream smoke, and the purpose of the other layer of wrapping paper is to include a composition capable of improving ashing effect. According to another aspect of the present invention, a low-side smoke cigarette includes a conventional tobacco rod and a flammable treated paper having a one-side smoke treatment composition. The treatment composition contains an oxidation catalyst for oxygen storage and supply of metal oxides; an almost non-flammable high surface area auxiliary which is a catalyst that can be incorporated into the treated paper. The outer surface of the treated paper is coated with a layer of calcium carbonate to improve the ashing properties of the paper. [Embodiment] According to one aspect of the present invention, the side-stream smoke treatment composition can control the side-stream smoke visible to the naked eye to a desired degree, and at the same time, can provide an appropriate ashing effect. The sidestream smoke treatment composition of the present invention contains! An oxygenation catalyst for storing and supplying metal oxides can be used in combination with an almost non-combustible porous catalyst auxiliary particle. For example, if the applicant filed a claim on September 18, 200i, and is still in the process of U.S. Patent Application Serial No. 09 / 954,432, 'accidentally discovered that when these two components are used alone or combined with other components, they can control the side Smoke to an unexpected level. Certain types of catalyst materials and / or auxiliaries are known to cause ashing characteristics, for example, the appearance may become less acceptable due to discoloration, inability to form thin layers, and inability to form sheets. According to the present invention, the composition can be strengthened, and in particular, the catalyst and / or auxiliary can be strengthened to improve the ashing effect to provide an acceptable appearance, strength, color, integrity, reduce or eliminate sudden fire conditions, and fail to become thin. Layers, and inability to form pages. The auxiliary can be any suitable, almost non-combustible, finely divided particulate matter, which will not affect the aroma and taste of mainstream smoke, and will not emit any unwanted sidestream smoke vapor. The physical properties of the particulate matter are very stable at the high temperature of the core of a burning cigarette. The auxiliary may have a low surface area, generally less than about 20 m2 / g ^ A surface area of the high surface aid at this stage is generally more than 20 m2 / g, which is generally porous. The average diameter of the pores of the porous auxiliary material is less than 100 nm (1,000 A). Preferably, the average diameter of the pores is less than 200 nm and more preferably, the average diameter of the pores is between 0. 5100 nm (5.1 A). As for zeolite-based materials, the average pore diameter is between about 0.5-1.3 nanometers (5-13 people). The average particle size of the auxiliary particles is less than about 30 microns, preferably 13 200304777 is less than about 20 microns, more preferably less than i microns and up to about 5 microns. Incombustible substances can be various types of porous clays commonly used to make cigarettes, such as colloidal clays or conditioning clays with high surface areas. Non-flammable carbon materials can also be used, including abrasive porous carbon fibers and particles. Different metal oxides and carbonates can be used, such as porous monocubic mineral-based materials, including hafnium oxide, titania, magnesia, alumina, hafnium oxide, tin oxide, iron oxide, manganese oxide, calcium carbonate, carbonic acid Hafnium, magnesium carbonate and mixtures thereof, metal oxide fibers such as ground zirconium fibers and other ground porous ceramic fibers and mixtures thereof. As far as hafnium oxide is concerned, it can be used as a fine separation aid and an oxygen storage and supply oxidation catalyst for hafnium oxide. Other auxiliary materials include high surface area materials such as activated carbon and zeolites. The auxiliary may also contain a high surface area adsorption material, which is a non-flammable, finely divided inorganic particle, such as a molecular sieve, which includes zeolite and amorphous materials such as silica / alumina, oxidized hammer, and similar components. Such as siliceous zeolite, X, Y and L stones, octahedral stones ((Na2, Ca, M§) 29 [Α1583ί134〇3 8 4] 240 H20; cubic crystal system), p stones (Nan (AlnSi64- n〇128) n <7; tetragonal), modern sludge (Na8 [Al8Si40〇96] .24 h2〇; orthorhombic), ZSM zeolite (Nan (A1nSi "n〇192) ~ 16 H20, n < 27 Zeolites such as rhomboids) and their mixtures are acceptable. "The ideal zeolites include hydrophobic zeolites and slightly hydrophobic zeolites, which have an affinity for the hydrophobicity of sidestream smoke and the slightly hydrophobic organic components. The zeolite The material provides a highly porous structure that can selectively adsorb and absorb the components of sidestream smoke. The highly porous structure generally contains macropores between the particles 14 200304777 structure, and has a microporous structure within the particles, which can diverge the macropores Structure. It is generally believed that the components captured in the macroporous and microporous structures can be converted into oxidizing components in the high temperature of burning cigarettes in the presence of thorium oxide or other suitable oxidation catalysts. Released in the composition or as an invisible gas because it contains Low tar and nicotine content, so the sidestream smoke is invisible or low-dose belonging desirable chemical formula zeolitic material can be described with the following column

MmM'nM''p [aAl〇2.bSi02.CT02] where M is a monovalent cation, M 'is a divalent cation, M is a trivalent cation, and a, b, c, n, m, and ρ are the stoichiometry of the reaction Number, c, m, η or ρ can also be 0,

A1 and Si are tetrahedral coordination A1 and Si atoms, and T is a tetrahedral coordination metal atom that can replace A1 or Si, wherein the b / a ratio of the zeolite or zeolite-like material is about 5 to about 300, The pore size is between about 0.5 to 1.3 nm (5 to 13 A). The specific formula of the preferred zeolite in the above formula is faujasite ((Na2, Ca, Mg) 29 [Al58Si134O 3 8 4]. 240 H20; cubic system), β zeolite (Nan (AlnSi64.n〇128) n <7; tetragonal), modern zeolite (Na8 [Al8Si40〇96] .24 H20; orthorhombic), ZSM zeolite (Nan (AlnSi90. 15 200304777 n 192) / 16H2〇, n <27; orthorhombic) , And mixtures thereof. Different grades of adsorption materials can be used. In particular, zeolite ladders can be designed to selectively adsorb high-focal point materials. It can form a layer of zeolite composition, in the present invention, low-oxidation thorium or other suitable catalysts are distributed in these material layers: ... It is used for wrapping and fragrant end paper. The binding agent or adsorbent may be an acid ester, hexenyl polyvinyl alcohol, carboxymethylcellulose (CMC), starch and camel, soy protein and a mixture thereof. Oxidation catalysts for white or oxygen storage and supply of metal oxides. The metal oxides are composed of transition materials, rare earth metal oxides (for example), and their mixtures AA ^. It is known that catalysts can exist in the form of metal oxides or metal oxide permeants. At the temperature of cigarette burning, some catalysts can be converted into metal oxides with catalytic activity. The transition metal oxide may be selected from the group consisting of metal oxides of Group IVB, VB, VIB, VIIB, VIII, and IB metals and mixtures thereof. The metal oxides from the transition metal group may be iron, steel, silver, manganese, titanium, zirconium, hafnium and tungsten oxides and lanthanide-based metal oxides such as hafnium oxide from the alkaline earth metal family. For example, rhenium can be used in combination with any transition metal such as Ce / Zr mixed oxides. It can also be used together with other oxygen storage and oxygen supply type oxidation catalysts. Such other metal catalysts include precious metals, IIA, IVA metals and mixtures thereof. Examples include tin, platinum, palladium, and mixtures thereof. 16 200304777 It is known that the solid salt (sol) of the salt or the adsorbent material is at a high temperature. The solid solid solution precursor is known, for example, when the two make side-stream smoke to control the adjacent material. Involving or covering the catalyst with the catalyst. The use of chemical agents and auxiliary materials in addition to other properties, or the use of materials will not negatively affect the material before the chemical agent, you can exist, such as osmium nitrate or other dispersible forms, you're made of hydration oxide hydrate The composition of rhenium solid solution I is added to ru, cargo, hydrazone hydroxide or solid solution, and applied to the material or paper as a coating. The hydrazone hydroxide will transform into Zhilihuan when burning cigarettes, and then Can be used as a catalyst. The solution can count _ # kinds of low-concentration thorium oxide nitrate hydrate. For the purpose of the present invention, the term catalyst includes any catalyst. The catalyst for hafnium oxide can be used with auxiliary materials. It is known that the controlled monthly force will be greatly reduced when it is used by knife or not used in adjacent layers. Although in some arrangements, the purpose of sidestream smoke can also be achieved. The catalyst is preferably almost porous with the auxiliary material. The catalyst particles can be mixed with the auxiliary material, the auxiliary material is brought into contact with each other, the catalyst is coated on the auxiliary material, or the auxiliary material penetrates the porous surface of the auxiliary material to achieve the desired excellent In addition to the combination of oxygen storage and oxidation oxidants used to supply metal oxides, the sidestream smoke control can also use many other additional ingredients. Additives can be used to further enhance the handling of sidestream smoke or alter cigarettes. Such additional additives may be mixed with the treatment composition anywhere in the structure of the cigarette, provided that the auxiliary surface harms the ability of the treatment composition to handle sidestream smoke. Different methods are used to formulate the composition to achieve the purpose of blending brocade and auxiliary. For example, the auxiliary material can be sprayed or dropped 17 200304777 into the noodle surface 0 meticulous idealization agent movement of the catalytic oxygen is less, that is, to do the more size in the first catalyst such as metal composition, salt solution For example, osmium hydrochloride or osmium solution is used to infiltrate into the table of auxiliary materials containing erbium, and thorium oxide can be prepared into a separate powder mixed with auxiliary materials. It is desirable for the powder to have an average particle size below about 30 microns, more preferably below about 20 microns, and most preferably below about 1 to 10 microns to ensure adequate mixing and blending of the materials. When the catalyst particle size and surface area are selected for general instructions, the catalyst has sufficient surface area to ensure that the catalyst's position of action can interact with the sidestream smoke component. If the catalyst particles are properly dispersed, the particle size of the chemical agent should be greater than 30 microns to achieve the necessary degree of sidestream smoke formation. We are surprised to find that thorium oxide, especially high surface area thorium oxide, is one of several oxides capable of exhibiting the dual function of the present invention, and is also an oxidation catalyst and auxiliary for oxygen storage and supply of metal oxides. Porous hafnium oxide particles can achieve the surface area and particles required by the auxiliary. The hafnium oxide is used as a catalyst for cigarette paper in the first usage amount, and is used as an auxiliary in the treatment composition in the two usage amounts. According to the total weight of other months, 5, the amount of osmium oxide used is equivalent to the amount used in the agent and auxiliary. Alternatively, the high surface area oxidation finish may be used with an auxiliary such as zeolite or other high surface area oxides such as an oxidizing file. Rhenium can be formulated as a solution dispersion, such as a holmium oxide solid solution or the like, and applied to an adsorbent material such as zeolite. Then it is dried and baked so that the hafnium oxide can be fixed on the surface of the adsorbent material. When the oxidized decorative particles 18 200304777 are fixed on the surface of the auxiliary, such as the surface of fusistone, the average particle size can be less than 1 micron. The relative content of the oxidized brocade fixed on the surface of the main spar stone can range from about 1% to 75% by weight, based on the total equivalents of the dairy decoration and the stone content per μ. The arsenic oxide β ar fixed on the surface of the zeolite ranges from about 5% to 70% by weight, and is preferably based on the number of arsenic oxide and zeolite content. The ideal method of preparing a combination of negative emulsified decorative products fixed on the surface of the stone was described on September 14, 2001; ρ Yan is "the method of preparing the metal oxide-coated microporous materials U.S. Patent Application Serial No. 60 / 18,878, published and listed, the main method of which is listed here. Β Although the above application document provides the steps for manufacturing a zeolite particulate material coated by catalytic oxidation. It contains at least 1% by weight of the oxidized decoration coated on the outer surface of the zeolite particulate material, based on the total equivalents of the oxidized decoration and the zeolite content. The method roughly includes the following steps:

(i) Combining a certain amount of a hydrocolloid dispersion of rhenium oxide hydrate (rhenium hydroxide) with a compatible zeolite particulate material to form a slurry, the set hydrocolloid dispersion is sufficient for each step (ii ) The heat treatment provides more than 20% by weight of rhenium oxide, the zeolite particulate material has an average pore size of less than 20A, and the hydrocolloid dispersion has a pore size of at least 20a to place the hydrocolloid dispersion on the zeolite. On the outer surface; and (ii) first below about 200. (: The slurry is heat-treated at a temperature of ', followed by a temperature of higher than about 400. (:, to fix the obtained hafnium oxide on the outer surface of the zeolite particulate material, providing a flow from 19 200304777 Large particles. Certain combinations of treatment compositions can cause unacceptable ashing appearance. Unacceptable ashing appearance includes inability to form thin layers, sheeting, gray paste, oily appearance, and color & Adding various ashing agents to cigarettes can improve the appearance of ashing. Such ashing agents include metal oxides or carbonates, such as hafnium oxide, dioxin, oxide, oxide oxide, tin oxide oxide, Iron oxide, oxidized oxide, hafnium carbonate, carbonic acid, sodium carbonate, and mixtures thereof. It is known that treatment compositions may need to be improved in order to improve the appearance of ashing. Such improvements include selection-specific chemical or physical form of oxygen supply / oxygen storage Catalyst and type 7 or auxiliaries. In order to make the color of ash close to white or gray, π non-dark coal black, it is known to reduce the amount of zeolite-based materials in the auxiliaries. To reduce the amount of stone-based material in the auxiliary material to the dry weight of the cigarette paper is preferably less than 35% (weight ratio), and more preferably less than 25% (weight ratio). It is preferably less than 15% (weight ratio). Its filler can also be added to compensate for the reduced amount of the auxiliary stone-based auxiliary material. Suitable metal oxide substitutes include oxidized junction, tin oxide, oxidized oxide Oxygen = 1 L, low surface area zinc oxide, carbonic acid feed, and mixtures thereof. 疋 H low or high surface area brocade / 鍅 mixed oxide is preferred as a kind of solid-soluble auxiliary ... It can be prepared by killing, drying, and baking to form a crystalline solid solution product of yttrium oxide and zirconium oxide on the south surface. Between 5:95 to 95: 5. 々 &, Or, the ratio can be between 25:75 to 75:25. This 20 200304777, so the high surface area physical form of the material that can provide thoria oxide auxiliary It has the properties of storage and supply of catalytically active gas, of which osmium oxide is used as oxygen. The choice of the agent is known to use a combination of hafnium oxide to obtain a comparatively ashing appearance. Example # 'Depositionable oxide material with high surface area oxidation decoration, hafnium oxide / oxidation oxide (as in the aforementioned ratio) on a high surface area solution; can be deposited Oxidation trimming hydrate on high surface area trimming / oxidation fault; can deposit and dry oxidation trimming hydrate on high surface area thorium oxide particles β In addition, the aforementioned heavy metal or transition metal type oxidation catalysts can also be used with thorium-based Materials (for example, platinum, palladium, tin oxide, iron oxide, and mixtures thereof such as platinum / tin oxide, platinum / iron oxide / tin oxide, tin oxide / rhenium oxide / rhenium oxide and the like) are used in combination. Carbonic acid can also improve the appearance of ashing. As mentioned before, the treatment composition is incorporated into or coated on a package of cigarette paper, which is the only paper wrapped with tobacco rods. As mentioned above, one of the ways to improve the appearance of ashing is to reduce the amount of adsorbent auxiliary such as afossil and replace it with a selected metal oxide. Or, for a single package of cigarette paper incorporating a treatment composition, coating a layer of calcium carbonate on the outer surface of the package cigarette paper can greatly improve the appearance of ashes. The fact that calcium carbonate can significantly improve the appearance of ashes is actually quite significant. It may be unexpected that carbonic acid is chemically or physically combined with ingredients other than the sidestream smoke treatment composition to produce a more uniform light to gray ash oven. Calcium carbonate can be mixed with a suitable binder to form a slurry: coating on cigarette paper. Suitable binders include those commonly used to coat calcium carbonate 21 200304777

Clay and other acceptable unexpected activities allow it, road proteins, binding agents or adhesives. Sidestream smoke treatment composition It is used on various porous cigarette papers. Known there. Known here β-complex r light τ

High porosity I 'Some combinations of catalysts and adjuvants may perform better than others. The composition can be simply sprayed on one or both sides of the cigarette paper and adsorbed by the cigarette paper. As shown in FIG. I, the paper 10 is conveyed in the direction of the arrow 12. The treatment composition 14 is sprayed onto the paper 10 by a nozzle 16 in the form of a slurry to provide a coating 18, and the coating 18 is dried on the paper. Alternatively, the composition may be extruded in the form of a film onto the surface of the paper, which may be one or more layers. As shown in FIG. 2, the film applicator 20 applies a film 22 to the paper 10 and conveys it in the direction of the arrow 12. The film is dried to provide a cover 24 on the paper 10. After such an arrangement, it was surprising to find that the sidestream smoke visible from the naked eye of the burning cigarette almost completely disappeared. The treatment composition can be applied to a conventional cigarette by applying it to a conventional cigarette paper. This coating can also be applied by the roller applicator 26, as shown in FIG. The treatment composition 14 is supplied to the drum 30 in a thin layer 28. The finishing knife 3 2 determines the thickness of the thin layer 34 to be coated on the paper 10, which is transported in the direction of the arrow 1 2 22 200304777. This thin layer is then dried to form a cover layer 36 on the paper 10. The treatment composition may also penetrate into the composition of the cigarette paper. The infiltration can be performed using the roller 24 in FIG. 4, and the paper 10 with a thin layer 36 is passed through the pressure rollers 38 and 40 in the direction of the arrow 12, which can house the material layer of the composition into the paper for 10 orders. The ingredients in the treatment composition are allowed to penetrate into the paper.

Those skilled in the art will appreciate that other different coating methods, including transfer coating methods, can also be used to prepare the treatment material of the present invention. In the transfer coating method, a MylarTM plate or other suitable plate may be used to transfer the coating composition from a MylairTM plate to the surface of a cigarette paper. Such transfer coatings can be used when the physical strength characteristics of paper or similar components are not suitable for use in roll coating compositions.

Another alternative is to incorporate the treatment composition into the paper process. The composition can be incorporated into the pulp as a slurry. Referring to Fig. 5, the treatment composition in the paper container 42 is stirred in a tank 46 with a stirrer 44 to form a polymer. In a conventional papermaking process, the pulp is transferred to a moving conveyor belt 50 and coated as a thin layer 48 to form a cigarette paper 52. In this way, the treatment composition can be incorporated into the final paper product. Another alternative is to sandwich the treatment composition between paper layers to form a double-layer tobacco paper wrapped around a tobacco rod. For example, the composition can be sprayed on the inside of the outer paper or the outside of the inner paper in the manner as shown in FIG. Once the two-layer paper is used in a tobacco rod, the composition can be sandwiched between the two layers of cigarette paper in the form of a thin layer. Each layer of cigarette paper can have half the thickness of conventional cigarette paper, so the double-layer rolled paper does not increase the overall diameter of the cigarette, and can be completed by a cigarette making machine 23 200304777. Referring to Fig. 6, a cigarette paper ι0 is wound around the tobacco rod 54, and the cigarette paper 10 is covered with a coating i 8 on the outside. Conversely, as shown in FIG. 7, the coating layer 8 may be applied to the inside surface of the cigarette paper 54 adjacent to the tobacco rod 54. As another alternative, as shown in Figure 8 and described above, the cover 18 is sandwiched between cigarette paper 56 and 58. The papers 56 and 58 and the cover 18 therebetween can form a separate cigarette covering material for application to the tobacco rod 54. A further alternative is shown in Figure 9, where the tobacco rod 54 is covered with a conventional cigarette paper 60. Overlaid on the conventional cigarette paper 60 is a cigarette paper 52 as shown in FIG. 5, which is incorporated into the treatment composition. The cigarette paper 52 into which the treatment composition is incorporated can also be used directly on the tobacco rod 54. In another embodiment of the present invention, various combinations of sidestream smoke-treated paper can be used in the form of double-layer packaging paper. For example, in Fig. 7, a paper with a coating can be used as an inner paper, and then a different one is used. Paper (which can be a traditional cigarette paper) serves as the outer layer of a double wrap. The inner paper may also be a cigarette paper in which the treatment composition is incorporated, as shown in FIG. The inner paper can be designed to reduce sidestream smoke by incorporating all necessary ingredients in the composition, such as oxidation catalysts for storage and supply of metal oxides and non-combustible auxiliary materials for the catalyst. Preferred examples of such compositions include a high surface area rhenium / rhenium mixed oxide and zeolite, and optionally an oxidation catalyst reinforced with, for example, platinum or palladium. In a two-layer packaging system, the amount of zeolite may exceed 30%, and may be between 50% and 60% by weight. The outer layer of the double pack may have a different composition ' and may be designed to provide improved ashing effects to achieve desired characteristics. For example, the outer paper can be designed not only to enhance the appearance of ashing, but also to improve the burning rate of cigarettes and to minimize sparks that ignite suddenly during ignition or smoking (if they cannot be completely ruled out). Outer paper can include metal oxides, such as low-surface area hafnium oxide, high-surface area hafnium oxide / oxidized salt solution, Ming, oxide, titanium dioxide, tin oxide, etc. On the outer paper metal oxide to ensure that there is enough oxygen to support the burning of the outer paper. This two-layer paper, when combined into a two-layer system, can effectively control the sidestream smoke visible to the naked eye. The adjacent paper burns evenly to produce the desired ash oven 'and the outer paper keeps the highly active oxygen supply from sudden fires or minimizes or even eliminates them. The characteristics of the double-layer packaging paper of the present invention provide an elastic design for low-side smoke cigarettes. Each individual sheet of double-layer paper may have a specific treatment composition embedded in it, overlaid or incorporated therein. Alternatively, the paper having the treatment composition incorporated therein may be coated with a layer of the same or different treatment composition to further enhance the control of sidestream smoke and / or improve the ashing effect. In order to show the design flexibility of low side flow smoke, an exemplary treatment composition for inner paper or outer paper is shown below: Outer paper (1) South surface area of hafnium oxide / zirconia (75:25) solid solution plus Hafnium oxide with low surface area; (η) south surface area aluminum with hafnium hydrate coating; (iii) low surface area hafnium oxide with hafnium hydrate coating; 25 200304777 (iv) high surface area oxidizing hammer, It is coated with rhenium hydrate; (v) a high surface area rhenium oxide / rhenium oxide (25:75) solid solution. Inner paper (i) High surface area hafnium oxide / hafnium oxide (75: 2 5) solid solution reinforced with palladium catalyst, plus zeolite reinforced with palladium catalyst;

(Π) High surface area hafnium oxide / hafnium oxide (75: 25) solid solution plus zeolite strengthened with palladium catalyst; (Out) High surface area hafnium oxide / hafnium oxide (75: 25) solid solution plus zeolite The rhenium oxide / oxidation system is used to strengthen the catalyst; (iv) high surface area rhenium / rhenium mixed oxide (75:25) solid solution plus zeolite, where the rhenium / rhenium mixed oxide is strengthened with platinum and tin catalysts. The various compositions of these inner and outer papers can be combined in various ways to provide control of sidestream smoke and improve the effect of ashing.

A preferred combination is a combination of a high surface area hafnium oxide / hafnium oxide (75:25) solid solution and a low surface area zirconia for outer paper. For the inner layer paper, a preferred treatment composition is a high surface area oxidation bromide / oxidation (7 5 · 25) solid solution reinforced with a palladium catalyst, and a zeolite reinforced with the catalyst. In terms of the dry weight of the outer paper, the coating formulation has a high surface area hafnium oxide / oxidized solid solution of 25% and a low surface area hafnium oxide of 75%. In terms of the dry weight of the inner paper, it has about 44% high surface area hafnium oxide / hafnium oxide solid solution and 26% 04200304777 zeolite, both of which have been strengthened. Those skilled in the art will understand that the foregoing method of providing a low sidestream smoke treatment composition in a cigarette or onto a desired cigarette paper may vary depending on the desired composition and the number of wrapping papers on the tobacco rod. For example, two or more layers of paper of various compositions, or both sides of the paper, can be used to reduce the load on one side of the paper and make coating applications easier.

In any of the foregoing combinations, it was surprisingly found that the sidestream smoke visible to the naked eye was almost completely removed. At the same time, cigarette paper also shows traditional ashing results. It is particularly unexpected that simply applying the composition of the present invention to the surface of a cigarette paper can remove or reduce the sidestream smoke visible to the naked eye to an unmeasurable amount almost completely.

Depending on the composition used and the cigarette used, various process aids and mixtures thereof may be required to facilitate the specific application of the treatment composition. Such process aids include flake materials such as polyacetic acid, professional powder, methylcellulose (CMC), casein and other forms of acceptable adhesives, different forms of bound clay, inert concrete, and whitening agents. , Viscosity modifiers, inert fiber materials such as rhenium fiber and file / rhenium fiber as described in US Patent Application Serial No. 60/3 18,614 filed on September 13, 2001, the main purpose of which is to be incorporated herein by reference. Penetrants can also be used to bring the composition into a non-flammable substance. The composition can also be diluted with a suitable diluent such as water to form a slurry, which can be spray-coated, roller-coated, air-knife-coated, stick-coated, paddle-coated, printed-coated , Glue extrusion coating, roller coating, transfer technology coating and similar methods are applied to traditional cigarette paper. 27 200304777 The dosage of the treatment composition on cigarette paper, wrapping paper or the like is preferably between 2.5 g / m 2 and about 125 g / m 2, and most preferably between 2.5 g / m 2 To about 100 grams per square meter. In terms of weight, the paper may contain the treatment composition in an amount of about 10% to 500% by weight, and preferably contains the treatment composition in an amount of about 10% to 400%. These amounts are for a single sheet of paper, and those skilled in the art will understand that the total weights described herein may also be used in a two- or multi-layer paper system.

The sidestream smoke reducing composition is generally used in the form of a slurry of a composition, and the dry composition can be formulated into a slurry, depending on whether it will be used as a paper coating, incorporated in paper, or buried in paper. It depends on the application. For example, the incorporated formula may include 10% to 33% (by weight) of brocade-based catalyst, 20% to 62% of an adjuvant, and 10% to 75% of an improvement ashing agent. Another way is that it may contain 10% to 25% (by weight) of a catalyst based on rhenium, one of 40% to 55% auxiliary and 20% to 50% zeolite, which is another auxiliary.

The pulp can be incorporated into the pulp during the paper making process, or applied to the paper by different coating methods, or penetrated into the paper material by different infiltration methods, as described above. The average particle size of the slurry is preferably between about 1 micrometer and about 30 micrometers, and most preferably between about 1 micrometer and about 6 micrometers. For 钸, the relative content of the catalyst fixed in the auxiliary is preferably about 1 to 75% by weight of the total equivalent catalyst and auxiliary content, and more preferably between about 10 and the total equivalent catalyst and auxiliary content. Between 70% and 70% by weight, preferably between 20 and 70% by weight of total equivalent catalyst and auxiliary content. 28 200304777 Other catalysts such as precious metal catalysts can also be immobilized on the auxiliary. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should be able to understand that there are still many variations of the present invention, which still belong to the scope of the accompanying patent application. [Schematic description]

The ideal and concrete practical examples of the present invention are listed in the accompanying drawings, wherein FIG. 1 is a schematic diagram of a spraying technique for applying a treatment composition to a cigarette paper; FIG. 2 is a film of the treatment composition pressed onto a cigarette paper Figure 3 is a schematic view of applying a treatment composition to a cigarette paper by roller; Figure 4 is a schematic view of embedding a processing composition in a cigarette paper; Figure 5 is a schematic view of applying a treatment composition to a cigarette paper Overview of pulp mixing during the manufacturing process; Figure 6 is a perspective view of a tobacco rod containing the treated paper of the present invention;

Figure 7 is an alternative concrete example of Figure 6, Figure 8 is a perspective view of a tobacco rod containing a treatment composition sandwiched between two layers of cigarette paper, and Figure 9 is a tobacco rod containing a double wrap Perspective view of the cigarette paper covering conventional cigarette paper. [A brief description of the symbol of the component] 29 200304777 ίο Cigarette paper 14 Processing composition 18, 28, 34, 36 20 Film coater 22 Film 30 Roller 42 Pulp 46 Slots 52, 56, 60 Cigarette paper 12 Arrow 16 Nozzle coating 26 Roller applicator 32 Dressing knife 44 Agitator 50 Conveyor belt 54 Tobacco rod

30

Claims (1)

200304777 Fanyuan, a patent application 1. A low-side flow cigarette containing a traditional tobacco Hanwan ^ ^ flat piece and a flammable treated paper, the treated paper has a low-side medium-to-private smoke-forming treatment composition, which includes a Oxidation catalyst for oxygen storage and supply of metal oxides, and one of the catalyst's non-combustible porous auxiliary fine particles, the improvement of which includes a solid solution of mixed metal oxide particles as the catalyst and the auxiliary, the mixing The solid solution of metal oxide particles preferably has a high surface area and is preferably selected from the group consisting of hafnium oxide / zirconia, hafnium oxide / alumina, hafnium oxide / magnesium oxide, hafnium oxide / titanium oxide, and hafnium oxide / zirconia / tin oxide Group. 2. The low-sideflow cigarette according to item 1 of the scope of the patent application, wherein the catalyst and the auxiliary are solid solutions of the high surface area hafnium oxide / zirconia. 3. The low-side-flow cigarette according to item 1 of the scope of patent application, wherein the surface area of the hafnium oxide / zirconia is more than 20 square meters / gram. 4. The low-side-flow cigarette according to item 3 of the scope of the patent application, wherein the average particle size of the hafnium oxide / oxide cone is about 1 micrometer or more. 5 · The low-sideflow cigarette according to item 4 of the scope of the patent application, wherein the average particle size of the hafnium oxide / zirconia is about 30 microns or less. 6 · The low-sideflow according to item 2 of the scope of the patent application Cigarette 'wherein the ratio of hafnium oxide 31 200304777 / zirconia is between 5:95 to 75 · 25 between 7 · Low side flow cigarettes as described in item 6 of the patent application scope, wherein the ratio is 75: 25 and pellets The size is about 6 microns. 8 The low-side-flow cigarette according to item 丨 of the patent application, wherein the treatment composition is incorporated in an amount of about 2.5 g / m 2 to about 125 g / m 2. In the processed paper. 9 · The low-side-flow cigarette according to item 1 of the patent application scope, wherein the treatment composition is coated on the treated paper ° 10. The low-side-flow cigarette according to item 2 of the patent application scope, wherein The treatment composition includes particles of oxidized oxide, calcium carbonate, dioxide ', iron oxide, and mixtures thereof. 11-The low-sideflow cigarette according to item 2 of the patent application scope, wherein the treatment composition includes zeolite particles. 12. The low-side-flow cigarette according to item n of the scope of the patent application, wherein the zeolite is a carrier of an oxidation catalyst selected from the group consisting of platinum, free, rhodium, tin oxide, iron oxide, platinum / tin oxide, Platinum / iron oxide / tin oxide, copper oxide, magnesium oxide, silver oxide, and mixtures thereof. 32 200304777 13. The low-side-flow cigarette according to item 10 of the patent application park, wherein the treatment composition includes a low surface area hammer of dioxide. 14. A low-sidestream cigarette comprising a conventional tobacco rod and a flammable treated paper, the treated paper having a low-sidestream smoke treatment composition, wherein the treatment composition comprises an oxidation catalyst for oxygen storage and supply of metal oxides, A non-combustible auxiliary with the catalyst and a metal oxide or metal carbonate which can improve ashing characteristics. 15 · The low-side-flow cigarette according to item 14 of the patent application scope, wherein the auxiliary comprises a zeolite-based material. 16 · The low-side-flow cigarette according to item 15 of the scope of patent application, wherein the amount of the stagnation-based material is between about 0.1% (weight ratio) of the total dry weight of the composition and about 35% of the composition The total dry weight is preferably less than 25%, and most preferably less than 15%. 17. The low-sideflow cigarette according to item 15 of the scope of the patent application, wherein the metal oxide or metal carbonate which can improve the ashing property is selected from the group consisting of oxide, tin oxide, titanium dioxide, aluminum, low surface area hafnium oxide, High surface area hafnium oxide, iron oxide, magnesia, calcium carbonate, zirconium carbonate, hafnium carbonate and mixtures thereof. 33 200304777 1 8. The low-side-flow cigarette according to item 14 of the scope of the patent application, wherein the auxiliary is a support for a solid solution of tritium to be applied and dried. 19 · The low-side-flow cigarette according to item 18 of the scope of the patent application, wherein the auxiliary is a high surface area oxide brocade. 20. The low-sideflow cigarette according to item 14 of the scope of the patent application, wherein the oxidation catalyst for oxygen storage and supply of metal oxides is selected from the group consisting of high surface area thorium oxide, thorium oxide deposited on high surface area thorium oxide, and high surface area.钸 / 锸 mixed oxides, 钸 / aluminum mixed oxides, rhenium / magnesium mixed oxides, bromide / chinese mixed oxides, oxide hydrates deposited and dried on high surface area fine particles, and fixed to the zeolite particles Oxidized brocade particles on the surface and mixtures thereof. 21 · Low side flow cigarette as described in the scope of patent application No. 20, wherein the brocade / hammer emulsion is mixed with a low surface area oxidation cone which can improve the ashing effect. In the low-sideflow cigarette, an oxidation catalyst is used together with the oxidation catalyst for storing and supplying metal oxides. The oxidation catalyst is selected from platinum / tin oxide, platinum / iron oxide (FeO) / tin oxide, Tin oxide / zirconia / hafnium oxide, platinum, palladium, tin oxide, iron oxide, and mixtures thereof. 34 200304777 23. The low-side-flow cigarette according to item 15 of the application, wherein the zeolite is a Y-type zeolite, a ZSM-type zeolite or a β-type zeolite. 24. The low-sideflow cigarette according to item 20 of the scope of the patent application, wherein the oxidation catalyst for oxygen storage and supply of metal oxides is a high-surface-area, porous porosity / oxidation #particle. 25. The low-side-flow cigarette according to item 24 of the patent application scope, wherein a low surface area zirconia and / or zeolite is used in combination with the hafnium / zirconium mixed oxide. 26. The low-side-flow cigarette according to item 25 of the application, wherein an oxidation catalyst is used with the zirconia or zeolite. 27. The low-side-flow cigarette according to item 1 of the patent application scope, wherein the oxidation catalyst is selected from the group consisting of platinum / tin oxide, platinum / iron oxide (FeO) / tin oxide, Ming, palladium, tin oxide, iron oxide, and In a group of mixtures. 28. The low-side-flow cigarette according to item 26 of the application, wherein the zeolite is a Y-type zeolite. 29. The low-side-flow cigarette according to item 14 of the scope of the patent application, wherein the treatment composition is applied to the cigarette paper in the form of a film, and the composition for film includes a metal oxide, which is oxidized by metal. The system was selected from the acid 35 of 200304777. A group consisting of titanium dioxide, titanium dioxide, and zirconium dioxide 3 0 Low side-flow cigarettes as described by α and Shitu α, among which can be paper paper · As in the scope of the patent application No. 14 4 ^ The treated paper contains an inner layer and a Outer layer, the inner layer paper includes the treatment composition capable of reducing sidestream smoke, and the outer layer paper includes a treatment composition capable of improving ashing characteristics for improving the free burning rate and strengthening the appearance of ashes. 3 1 · The low-side-flow cigarette described in item 30 of the scope of the patent application, in which the inner layer paper has a stagnation material of 35% (weight ratio) or more. 32. The low-side-flow cigarette according to item 3 () of the scope of the patent application, wherein the inner layer paper and the outer layer paper are coated, incorporated or buried on or in the treatment composition. 3 3 The inner layer paper of the low-sidestream cigarette 'described in item 32 of the scope of the patent application has the sidestream smoke-reducing treatment composition incorporated therein. 3 4. The low-sideflow cigarette according to item 32 of the scope of the patent application, wherein the inner layer paper is coated with the treatment composition capable of reducing the side-flow smoke. 35. The low-side-flow cigarette according to item 32 of the scope of the patent application, wherein the inner layer paper has the treatment composition for reducing side-flow smoke incorporated therein or is coated thereon. 36. The low-side-flow cigarette according to item 32 of the scope of the patent application, among which the layer paper is provided with the treatment composition capable of reducing the side-flow smoke. 37. The low-side-flow cigarette according to item 32 of the scope of the patent application, wherein the outer layer paper is coated with the treatment composition capable of reducing the side-flow smoke. 38. The low-sideflow cigarette according to item 32 of the scope of the patent application, wherein the outer layer paper has the treatment composition capable of reducing the sideflow smoke incorporated thereinto or coated thereon. 3 9 · The low-side-flow cigarette described in item 30 of the scope of the patent application, wherein the inner paper contains an oxidation catalyst and auxiliary for oxygen storage and supply of metal oxides, and a high surface area adsorbent material; the outer paper contains Oxygen storage and supply of metal oxide oxidation catalysts and auxiliary materials and a low surface area metal oxide to improve ash characteristics. 40. The low-side-flow cigarette according to item 39 of the scope of the patent application, wherein the treatment composition capable of reducing side-flow smoke and the treatment composition capable of improving ashing characteristics are respectively applied to the inner layer in a laminating manner. Paper and the outer paper. 41. The low-side-flow cigarette according to item 40 of the patent application park, wherein the oxygen 37 200304777 The oxidation catalyst for storing and supplying metal oxides is a high surface area oxidized / zirconium oxide porous particle. 42. The low-sideflow cigarette according to item 41 of the scope of the patent application, wherein the ratio of the hafnium oxide and the oxide hammer in the solid solution is between about 5:95 to about 75:25. 43. The low-side-flow cigarette according to item 42 of the patent application scope, wherein the film is applied to one or both sides of the inner paper and the outer paper. 44. A low-sidestream cigarette comprising a conventional tobacco rod and a combustible treated paper, the treated paper having a low-sidestream smoke treatment composition, wherein the treatment composition comprises an oxidation catalyst for storing and supplying metal oxides, One of the catalysts incorporated in the treated paper is a non-flammable, high surface area auxiliary, and a calcium carbonate coating is applied to the surface of the treated paper to improve the ashing characteristics. 45. The low-sideflow cigarette according to item 44 of the patent application scope, wherein the auxiliary comprises a zeolite-based material. 46. The low-side-flow cigarette according to item 45 of the scope of the patent application, wherein the amount of the zeolite-based material is between about 0.1% (by weight) of the total dry weight of the composition to about 35% of the total dry weight It is preferably below 25%, and most preferably below 15%. 38 200304777 47. The low-side-flow cigarette according to item 44 of the patent application park, wherein the oxidation catalyst for oxygen storage and supply of metal oxides is selected from antimony oxide which is oxidized by high surface area and deposited on high surface area thorium oxide Hafnium / zirconium mixed oxides, hafnium / aluminum mixed oxides, hafnium / magnesium mixed oxides, hafnium / magnesium mixed oxides, hafnium oxide hydrates deposited and dried on high surface area fine particles, fixed on The hafnium oxide particles on the surface of the zeolite particles and a mixture thereof are in a group. 4 8 · The low-side-flow cigarette described in item 47 of the patent application park, wherein an oxidation catalyst is used with the oxygen storage and supply of metal oxide oxidation catalyst, the oxidation catalyst is selected from platinum / tin oxide , Platinum / iron oxide (FeO) / tin oxide, tin oxide / zirconia / hafnium oxide, platinum, palladium, tin oxide, iron oxide, and mixtures thereof. 49. The low-side-flow cigarette according to item 45 of the application, wherein the sludge is a Y-type zeolite, a ZSM-type zeolite, or a β-type zeolite. 50. The low-sideflow cigarette according to item 49 of the scope of the patent application, wherein the oxidation catalyst for oxygen storage and supply of metal oxides is a high surface area, porous brocade / zirconia particle. 5 1 · The low-side-flow cigarette described in item 50 of the scope of patent application, wherein an oxidation catalyst is used in combination with the hafnium oxide or zeolite. 39 200304777 52. The low-side-flow cigarette described in item 51 of the scope of patent application, wherein the oxidation catalyst is selected from the group consisting of platinum / tin oxide, platinum / iron oxide (FeO) / tin oxide, Ming, free, tin oxide, Iron oxide and mixtures thereof. 53. The low-side-flow cigarette according to item 52 of the application, wherein the zeolite is a Y-type zeolite. 5 4. The low-sideflow cigarette according to item 44 of the scope of the patent application, wherein the calcium carbonate-coated binder is selected from the group consisting of polyvinyl alcohol, starch, carboxylated methyl cellulose (CMC), casein, and soybeans In a group of bound clay and its mixture. 40