Cigarette paper with low capacity of ignition

FIELD: textile, paper.

SUBSTANCE: cigarette paper has multiple areas capable of fire suppression and arranged at the distance from each other. On one surface of cigarette paper the areas capable of fire suppression are formed from polyvinyl alcohol with extent of polymerisation making 900 units or more. According to the second version, polyvinyl alcohol is used, 3% weight solution of which has viscosity making from 5 mPa·s to 30 mPa·s when measured at 20°C. Areas capable of fire suppression are made in the form of strips or in the form of round circular belts.

EFFECT: reduced cigarette paper capacity of ignition at relatively small amount of coating substance.

6 cl, 2 dwg, 3 tbl, 8 ex

 

The technical field

The present invention relates to a cigarette paper with a low ability to fire.

The level of technology

Proposed cigarette paper coated with film-forming composition in the form of a belt to reduce the air permeability of the coated composition of the parts to deter break a flame from a cigarette, even if the smoker threw a cigarette, for example, by negligence, on the floor, etc. (Japanese PCT national publication No. 2004-512849). As a film-forming composition used, for example: alginates, pectin, silicate, carboxymethyl cellulose, other cellulose derivatives, guar gum, starch, modified starch, polyvinyl acetate and polyvinyl alcohols.

However, in Japanese PCT national publication No. 2004-512849 not given information about the dimension the actual ability to ignite the cigarette paper coated with film-forming composition.

Disclosure of invention

The authors of the present invention was studied, among a number of different substances, polyvinyl alcohols in terms of their impact on the actual ability to ignite the cigarette paper to determine the amounts of coverage required to achieve the same level of ability to ignition, changing depending on the degree of polymerization or Vascos and polyvinyl alcohols.

Thus, the aim of the present invention is to provide a cigarette paper having significantly lower ability to fire with a relatively small amount of matter covering.

To achieve the above objective, according to the first aspect of the present invention, the proposed cigarette paper with a low ability to fire containing the base cigarette paper and many areas with the ability to suppress combustion, located at a distance from each other on one main surface of the cigarette paper, characterized in that region, with the ability to suppress combustion, formed by the coating of the polyvinyl alcohol having a degree of polymerization of component 900 units or more.

According to the second aspect of the present invention proposed cigarette paper with a low ability to fire containing the base cigarette paper and many areas with the ability to suppress combustion, located at a distance from each other on one main surface of the cigarette paper, characterized in that region, with the ability to suppress combustion, formed by the coating of polyvinyl alcohol, 3% by weight aqueous solution of which has what Scott, component of from 5 MPa·s to 30 MPa·s when measured at 20°C, and cigarette manufactured using the proposed cigarette paper has a value for the percentage of combustion from the full length of the cigarette (the persent of full length burns - PFLB)comprising from 0% to 5%, when the determination in accordance with ASTM E-2187-04 (ASTM - American society for testing and materials).

Brief description of drawings

The drawing shows a (partial tear-out) is a schematic perspective view of the cigarette, which used the cigarette paper according to one variant of implementation of the present invention.

The best option of carrying out the invention

The present invention is described in more detail below.

The cigarette paper according to the present invention is a cigarette paper, which is the basis (basic cigarette paper), on which are formed a large number of areas, with the ability to suppress combustion, located at a distance from each other, by means of a coating of the substance that suppresses the combustion consisting of polyvinyl alcohol, having a given degree of polymerization or viscosity.

The main cigarette paper is the usual cigarette paper made using conventional fibrous mass, such as flax fiber mass. This is basically the cigarette paper may contain commonly used filler, for example carbonic acid salt, for example calcium carbonate or potassium carbonate, or hydroxide, such as calcium hydroxide or magnesium hydroxide, in the amount of 2 g/m2or more. The filler may be contained in the main cigarette paper in an amount of 2 g/m2to 8 g/m2. The main cigarette paper usually has a surface density of 15 g/m2to 30 g/m2. Preferably, the surface density is from 20 g/m2to 28 g/m2. The inherent permeability of the main cigarette paper is usually from 30 to 60 CORESTA units.

The substance to regulate combustion, for example citric acid or its salts (sodium or potassium salt)may be added to the main cigarette paper. The substance to regulate combustion, if it is added, usually used in the main cigarette paper in the amount of 2 wt.% or less.

On one main surface of the cigarette paper to form a large number of areas, with the ability to suppress combustion, spaced from each other, where each region is formed by coating of a substance that suppresses combustion (polyvinyl alcohol). When using the cigarette paper for wrapping her tobacco rod, cigarette paper can be formed in the field, having the ability to submitting the burning structure, in the form of strips, passing in the longitudinal direction of the tobacco rod and at a distance from each other in the peripheral direction of the tobacco rod. Alternative region which is able to suppress combustion, can be formed in the form of a circular ring belts, passing in the peripheral direction of the tobacco rod and at a distance from each other in the longitudinal direction of the tobacco rod.

In the present invention as a substance that suppresses combustion, use of polyvinyl alcohol. In one embodiment of the present invention use polyvinyl alcohol having a degree of polymerization (number of monomers)constituting 900 units or more. Preferably, the degree of polymerization used polyvinyl alcohol ranged from 3000 to 4000. In another embodiment, the present invention is used polyvinyl alcohol, 3% by weight aqueous solution which has a viscosity factor of 5 MPa·s to 30 MPa·s when measured at 20°C. Preferably, the viscosity of polyvinyl alcohol ranged from 20 MPa·s to 30 MPa·S.

The degree of polymerization and viscosity polyvinyl alcohol relate to each other in some degree. By using a polyvinyl alcohol having a high degree of polymerization or elm the spine, can be achieved the same level of low ability to fire when using smaller quantities of coverage in comparison with the case where use another polyvinyl alcohol.

When using the cigarette paper according to the present invention with the above-mentioned coating of polyvinyl alcohol, you can get a cigarette (cigarette comprising a tobacco filling, wrapped in cigarette paper)having a value PFLB, comprising from 0% to 5%, when the determination in accordance with ASTM E-2187-04. Typically, the amount of the substance coating (surface density in the dry state) is a polyvinyl alcohol, a substance that suppresses combustion, is preferably less than 3 g/m2coverage area. When using the substances of the coating in an amount of from 0.2 g/m2to 2.0 g/m2it is possible to provide a relatively low ability to fire.

Cigarette paper with a low ability to fire in accordance with the present invention is used for wrapping the tobacco rod, consisting of tobacco toppings, such as shredded tobacco leaf. Typically, the surface coated with a substance, overwhelming combustion, is introduced into contact with the tobacco rod.

The drawing shows a cigarette, wrapped in cigarette paper coated with a substance, the overwhelming burning, in the form of cu is glyh ring belts.

Cigarette 10 (see drawing) contains the tobacco rod 11, which consists of tobacco filling 13, wrapped in basic cigarette paper 12, in the form of sticks. The tobacco rod 11 typically has a perimeter of 17 mm to 26 mm, and a length component from 49 mm to 90 mm Typically, the filter 18 can be attached in the usual way to the middle end (i.e. the end located downstream in the direction of tightening) 11b tobacco rod 11 by using paper 17 for fixing the filter.

On the main cigarette paper 12 is formed of many circular annular regions 14 in the form of strips, coated with a substance (polyvinyl alcohol), the overwhelming burning, which defined the field, having the ability to suppress combustion. These round circular area in the form of strips, with the ability to suppress combustion, spaced from each other in the longitudinal direction of the tobacco rod.

Ordinary combustible region 15 that is not covered substance to regulate combustion, defined between adjacent circular annular regions 14 in the form of belts, with the ability to suppress combustion. Because these areas 15 are parts of the main cigarette paper 12, they burn as well as the main cigarette paper 12 under normal conditions area. In accordance with this region 15 are ordinary combustible areas. In the example, can be formed by two or three circular ring region 14 in the form of belts, with the ability to suppress combustion. Round ring region 14 in the form of belts, with the ability to suppress combustion, can have a width in the longitudinal direction, comprising from 4 mm to 7 mm, and their thickness may typically be from 0.1 μm to 5 μm. The distance between adjacent regions 14, which are able to suppress combustion, preferably ranges from 18 mm to 25 mm

In the cigarette shown in the drawing, the region 16 extending from its end on the distance d, which is not covered with the substance, the overwhelming burning. The tip not covered substance overwhelming burning, also is ordinary combustible region 16, which may correspond to a conventional cigarette, burning for one or two puffs. The distance d may range from 10 mm to 25 mm from the tip 11a of the tobacco rod. It is not necessary in the formation region 14, with the ability to suppress combustion, on the inner surface of the cigarette paper, which corresponds to the area of the cigarette paper 12, which is covered with paper 17 for fixing the filter.

When ignited the tip 11a of the tobacco rod 11 of the cigarette 10 and tighten the air to ensure combustion of the cigarette, ordinary combustible region 15 are lit in the same way as regular cigarettes, and who you can feel the taste of cigarettes. However, if a lit cigarette 10 is placed on flammable material, such as carpets, tatami-Mat, wood product, fabric or textile material, the area 14, with the ability to suppress combustion present in the direction in which continues burning, interacts with the absorption of heat combustible material, stubbing out the cigarette 10, whereby to prevent breakthrough of the flame away from flammable material.

The embodiments of the present invention are described below, but the present invention is not limited to these examples.

Examples 1-4 and comparative examples 1-4

Table 1 shows the degree of polymerization, viscosity and degree of saponification of the polyvinyl alcohols used in the examples and comparative examples. All used polyvinyl alcohols were manufactured by Wako Pure Chemical Industries, Ltd.

The viscosity shown in table 1, determined by measurement, in which 200 g of a 3% by weight aqueous solution of polyvinyl alcohol was poured in chemical beaker of 200 ml or 300 ml; this chemical beaker was placed in a bath with a constant temperature and the aqueous solution was moderately stirred for about one minute with a glass rod in such a way as not to give the opportunity to form air bubbles in the solution, while maintaining the temperature of an aqueous solution at 20°C±0.5°C. After this solution has provided the opportunity to maturation for 10 minutes and measured the viscosity using a viscometer of type B.

Table 1
Designation of polyvinyl alcoholThe degree of polymerization of polyvinyl alcohol (number of monomers)Viscosity (MPa·s)The degree of saponification (mol.%)
P500400-600a 3.986,0 to 90.0
P1000900-11005,386,0 to 90.0
P35003100-390028,486,0 to 90.0

Then, 3% by weight aqueous solution of the substance that suppresses combustion (polyvinyl alcohol), was applied (by means of printing), using the process of direct gravure printing, basic cigarette paper (width - 27 mm; length - 1500 mm; the filler is calcium carbonate; substance for regulating the combustion - dihydrate sodium citrate), who had the characteristics shown in table 2, in the form of strips of constant width, SOS is alausa 7 mm, located at a constant distance, comprising 20 mm from each other in the longitudinal direction, formed thus 56 areas covered by the substance, the overwhelming burning. Determined the total quantity of coating is polyvinyl alcohol in cigarette paper thus obtained using the following method. The measurement results are also presented in table 2.

The method of determining the total quantity of the substance coating is polyvinyl alcohol

This measurement is based on the fact that the polyvinyl alcohol forms a colloidal compound with boric acid and colloidal compound of boric acid and polyvinyl alcohol takes on a blue color.

Cigarette paper coated with a substance, the overwhelming burning (width 27 mm, length 1500 mm) (weight of about 1.0 g), cut into square pieces with a width of 1 mm; to cut the paper was added to 100 ml of distilled water and made the extraction at essentially a constant temperature bath of 70°C. To 5 ml of the liquid extract was added 15 ml of the previously prepared 4% by mass aqueous solution of boric acid and the mixture was which. Then added 3 ml of iodide aqueous solution was added water in mixing the solution, bringing the volume up to 50 ml, thereby obtaining test solution. The test solution inspecting and on the absorption wave length of 690 nm, using absorbtiometry ultraviolet optical spectrum with a peak wavelength set at 690 nm. The absorption measured in this way were converted into concentrations using a previously prepared calibration curve absorption-concentration, which was determined by the total quantity of coverage in cigarette paper.

Table 2
ExampleThe main cigarette paperThe substance suppressing combustionThe amount of substance that suppresses combustion (g/m2)
The amount of filler (g/m2)Surface density (g/m2)The amount of the substance coating (wt.%)Vozduha-nichebot (Uslon. unit)
Comparative example 17,725,00,630,0No0
Comparative example 25,2 of 21.20,171,9No0
Comparative example 37,725,00,630,0P5002,7
Comparative example 45,2of 21.20,171,9P5001,7
Example 17,725,00,630,0P10002,7
Example 25,2of 21.20,171,9P10001,6
Example 37,725,50,630,0P35001,4
Example 45,2 of 21.20,171,9P35001,0

.

As shown in table 2, in cigarette paper, in examples 1-4, the amount of the substance coating the vast burning (polyvinyl alcohol), per square meter of the area covered by the substance, the overwhelming burning, was 1.0 to 2.7, To recalculate the amounts of coverage, the vast retardant, in an amount per unit area of the cigarette paper, the above value was multiplied by 7/27.

The tobacco rod, which consisted of American mixed fine-cut tobacco (tar without filter: from 19 mg to 20 mg), was wrapped in cigarette paper, obtained by the method described above, and the rod was cut in such a way that the first coverage area was located at a distance of 5 mm from the burning tip of the cigarette. The length of one cigarette was 59 mm, and the number of areas with a coating of the substance that suppresses the combustion was two.

Cigarette, thus obtained, were subjected to tests on the ability to fire in accordance with ASTM E-2187-04 and determined the value of PFLB. In addition, samples of these cigarettes were tested on the content of CO in the main stream smoke, determined the number of puffs and the amount of resin in the sample cigarettes in accordance with the tvii methods, described below. In addition, it was calculated the ratio of the number of CO/the amount of resin (CO/tar.), using the obtained values of measured quantities of CO and resin. The results are shown in table 3.

Measuring the amount of CO and the number of puffs

To measure the amount of CO collected tobacco smoke, using eight linear Smoking machine (model SM342), manufactured by FILTRONA. Sample cigarettes were burnt, following the ISO standards (ISO - international organization for standardization); cigarette "smoked" with a rate of 35 ml per 2 seconds with intervals of 60 seconds and the smoke passed through a glass fiber filter was collected in a gas bag. "Smoking" was stopped when reaching the reference point of Smoking cigarettes (51 mm from the lit tip of a cigarette; 8 mm from the border between cigarette paper and paper for gluing the filter from the side of the paper to adhere the filter). The number of puffs was recorded up to this point. After burning, to collect the gas remaining in the sample cigarette, burning the tip cut off and then produced three torque, using a sample of cigarettes in nonconducting condition. When the gas from the sample cigarettes were collected in a gas bag and collected the total amount of solid particles (CTC) glass fiber filter.

Using gas filled bag, measured if estvo CO in the sample cigarettes, using the apparatus for measuring the amount of CO produced by the company Filtrona.

Measuring the amount of resin

After determining the amount of crude resin from the glass fiber filter, in which the assembled components in the form of particles during measurement of the amount of CO described above, the filter was placed in serum vessel and was vigorously shaken for 20 minutes with 10 ml of 2-propanol (grade GC, manufactured by Wako Pure Chemical Industries, Ltd.). Extracted liquid was filtered and poured into a test tube. The tube was placed in a gas chromatograph and measure the amount of water and nicotine. The evaluation was made using the internal reference method. The amount of water and nicotine subtracted from the amount of crude resin, and the difference was recorded as tar.

Table 3
The PFLB value (%)The number of puffsThe amount of resin (mg)Amount (mg)The ratio of the number WITH the amount of resin
Comparative example 11006,8to 19.913,8 0,69
Comparative example 281-957,220,0a 12.70,64
Comparative example 340-606,820,715,20,73
Comparative example 440-607,422,214,20,64
Example 10-57,221,315,40,72
Example 20-57,623,614,60,62
Example 30-56,922,715,90,70
Example 40-57,422,7 14,70,65

As shown in table 3 (see the results of comparative examples 3 and 4), when using polyvinyl alcohol P500 is PFLB is reduced in comparison with comparative examples 1 and 2, but not achieved the PFLB value of 0% to 5%, even when the amount of substance of the coating is increased to 2.7 g/m2. On the other hand, in each of examples 1-4, in which the used polyvinyl alcohols P1000 and P3500, could be achieved PFLB value, ranging from 0% to 5%. In addition, as shown in table 3 (see the results of comparative example 3 and example 1, and comparative example 4 and example 2), PFLB value in the first two examples ranged from 40% to 60%, whereas the values PFLB in the last two examples ranged from 0% to 5%, with the same amount of the substance coating, which indicates that according to the present invention requires a smaller quantity of substance coating to achieve the PFLB value of 0% to 5%. In addition, as shown in table 3 (see results of examples 1-4), when using polyvinyl alcohol P3500 fewer substances coating than when using polyvinyl alcohol P1000, to achieve values PFLB, comprising from 0% to 5%.

1. Cigarette paper with a low ability to fire, containing the main signal is specific paper and many areas with the ability to suppress combustion, located at a distance from each other on one main surface of the cigarette paper, characterized in that region, with the ability to suppress combustion, formed by the coating of the polyvinyl alcohol having a degree of polymerization of component 900 units or more.

2. Cigarette paper with a low ability to fire containing the base cigarette paper and many areas with the ability to suppress combustion, located at a distance from each other on one main surface of the cigarette paper, characterized in that region, with the ability to suppress combustion, formed by the coating of polyvinyl alcohol, 3%by weight aqueous solution which has a viscosity factor of 5 to 30 MPa·s when measured at 20°C and the specified cigarette paper provides obtaining cigarettes, having a value of the percentage of combustion from the full length cigarettes (PFLB)comprising from 0 to 5% in the determination in accordance with ASTM E-2187-04.

3. The cigarette paper according to claim 1, characterized in that the main cigarette paper has a surface density of from 15 to 30 g/m2.

4. The cigarette paper according to claim 1, characterized in that the polyvinyl JV the RT deposited in the form of a coating in a quantity in less than 3 g/m2coverage area.

5. The cigarette paper according to claim 1, characterized in that when it is wrapped tobacco rod, the area of which is capable of suppressing combustion is made in the form of strips, passing in the longitudinal direction of the tobacco rod and at a distance from each other in the peripheral direction of the tobacco rod.

6. The cigarette paper according to claim 1, characterized in that when it is wrapped tobacco rod, the area of which is capable of suppressing combustion is made in the form of a circular ring belts, passing in the peripheral direction of the tobacco rod and at a distance from each other in the longitudinal direction of the tobacco rod.



 

Same patents:

FIELD: textile, paper.

SUBSTANCE: napkin contains additive composition. Additive composition may be, for instance, composition intended to bring good to user's skin. According to the present description, additive composition is arranged in the area of dedicated delivery on the main cloth. Main cloth is modified in area of dedicated delivery so that additive composition is more efficiently transferred to the opposite side in process of use.

EFFECT: development of napkin containing useful composition, where composition does not reduce own properties of item, such as absorbing and capillary properties of product.

20 cl, 10 dwg

FIELD: textile, paper.

SUBSTANCE: napkin product comprises non-crepe paper fabric with pulp fibres, dried with through air flow. Surface of fabric has pattern of protruding element with at least one vertical side wall. Paper fabric has initial bulking power and maintains at least 75% of initial bulking power under action of pressure of 0.3 pound/sq.inch. In one version of manufacturing paper fabric forms even perforations in transverse machine direction of fabric. Forming paper fabric is carried out with the help of 3D circuit of drying device material.

EFFECT: possibility to produce napkin product of higher softness, having high retention of bulking power as pressure is applied.

13 cl, 12 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to electroconductive paper and a method of making said paper (versions). The electroconductive paper consists of fibrous crystals of BaV8O21 with length of 0.5-3 mm and thickness of 0.1-10 mcm, interlaced between each other into an electroconductive mass. One method of making the electroconductive paper involves holding xerogel plates in saturated aqueous solution of Ba(NO3)2 for 8-48 hours and then hydrothermal treatment at 150-200°C for 8-48 hours. The plates are then dried in a drying cabinet at 70°C for 8 hours. In another version of the method, xerogel plates are held for not less than 48 hours and the specimen can be freeze dried for 24 hours at pressure 133-10-3 mbar at temperature between -196°C and 0°C.

EFFECT: obtaining electroconductive paper with good mechanical and stable electrochemical properties.

3 cl, 6 dwg, 3 ex

FIELD: medicine.

SUBSTANCE: described is material for application in wound care. Material is made in form of fibrous base with applied on it functional coating, which contains polyvinyl alcohol with degree of water absorption up to 2100%, carnon-modified aluminium oxide with specific surface area up to 300cm2/g, as well as sodium-carboxymethylcellulose as binding agent. From the side of coating material is provided with atraumatic material which ensures non-adherence of material to wound.

EFFECT: improvement of therapeutic and preventive care.

2 cl, 1 tbl

FIELD: construction.

SUBSTANCE: ground contains cation water-fast additive, alkaline glueing agent and anion activator in specified amount. Anion activator it contains is a component selected from group, including polyacrylate, sulfonate, carboxymethylcellulose and galactomannan hemicellulose. Ground paper has pH from approximately 7.0 to approximately 10, and strength of internal link from approximately 25 to approximately 350 millifeet per pound per square inch. This ground paper is produced by contact of a certain amount of cellulose fibres with water-fast additive, alkaline gluing agent and anion activator, serially and/or simultaneously.

EFFECT: improved physical properties of ground paper and expanded assortment of paper tapes to cover joints.

22 cl, 1 dwg, 1 ex

FIELD: personal use articles.

SUBSTANCE: napkin items, containing additive compositions, relate to cosmetic volume napkins, method of their production and sheet item. Napkin item with bulk of more than 3 cm3/g includes napkin cloth of cellulose fibres and additive composition, available on the first side of napkin cloth, which contains non-fibre olefin polymer, copolymer of ethylene-carbonic acid or their mixtures. In another version of napkin cloth the first side of paper cloth is creped after application of above specified additive composition. Napkin items are made by method including application of above specified additive composition onto the first side of napkin cloth, where napkin cloth comprises cellulose fibres, and creping of the first side of napkin cloth with creped surface, where additive composition helps napkin cloth to stick to creping surface. Sheet item comprises base cloth of cellulose fibre. Base cloth is hydraulically entangled cloth, coform cloth or air-laid cloth. Cloth also includes above-specified additive composition and has bulk of more than around 3 cm3/g.

EFFECT: improved strength of napkin cloth and/or cloth softness by touch without attendant issues of sticking.

37 cl, 37 dwg, 5 ex, 8 tbl

FIELD: personal use articles.

SUBSTANCE: napkin items, containing additive compositions, relate to cosmetic volume napkins, method of their production and sheet item. Napkin item with bulk of more than 3 cm3/g includes napkin cloth of cellulose fibres and additive composition, available on the first side of napkin cloth, which contains non-fibre olefin polymer, copolymer of ethylene-carbonic acid or their mixtures. In another version of napkin cloth the first side of paper cloth is creped after application of above specified additive composition. Napkin items are made by method including application of above specified additive composition onto the first side of napkin cloth, where napkin cloth comprises cellulose fibres, and creping of the first side of napkin cloth with creped surface, where additive composition helps napkin cloth to stick to creping surface. Sheet item comprises base cloth of cellulose fibre. Base cloth is hydraulically entangled cloth, coform cloth or air-laid cloth. Cloth also includes above-specified additive composition and has bulk of more than around 3 cm3/g.

EFFECT: improved strength of napkin cloth and/or cloth softness by touch without attendant issues of sticking.

37 cl, 37 dwg, 5 ex, 8 tbl

FIELD: chemistry.

SUBSTANCE: composition contains carrier starch and secondary starch. The carrier starch contains (in terms of dry mass), less than 50% pre- gelatinised starch and has higher sensitivity to alkali than the secondary starch. The secondary starch is selected from a group comprising maize starch, potato starch, wheat starch and a mixture of two or more of the said types of starch. The carrier starch is selected from a group comprising wheat starch, potato starch, cassava starch, barley starch and a mixture of two or more of the said types of starch. The composition contains (in terms of dry mass) 0.5-60% carrier starch, 40-99.5% secondary starch and 1-8% alkali. The composition also contains (in terms of dry mass) 0.1-3.5% boron compound. An adhesive is obtained by adding the composition to water and stirring while adding a sufficient amount of alkali. The adhesive is used to make corrugated cardboard and multilayer materials. The advantage of the adhesive composition lies in that it can be easily prepared with low expenses on time and equipment.

EFFECT: use of the adhesive improves quality of cardboard, reduces adhesive consumption and increases rate of production.

25 cl, 6 tbl, 1 ex

FIELD: textile, paper.

SUBSTANCE: item is arranged in the form of rectangular sheet, has the first parallel edges in the first direction and the second edges in the second direction, perpendicular to the first direction. Item comprises at least two layers attached together by binder applied in the form of fixing pattern between layers. Fixing pattern is the pattern of fixing of increased size and comprises fixing elements arranged along the first group of irregular wave-like lines of fixing, passing from one parallel edge to the other at the first angle, making from 20° to 70°, to the first direction, and along the second group of irregular wave-like fixing lines passing from one parallel edge to the other at the second angle, making from 110° to 160°, in the first direction. The first and second groups of irregular wave-like fixing lines cross to form a grid. Fixed area of surface makes from 0.6% to 6.0% of item area.

EFFECT: improved softness, elasticity of absorbing capacity, volume of item.

13 cl, 8 dwg

Wear-proof coating // 2407840

FIELD: chemistry.

SUBSTANCE: coating is a matrix material into which a mixture of high-strength particles having an irregular shape and spherical solid particles essentially without cutting edges are added. The high-strength particles have Mohs hardness of at least 6, and the solid particles have Mohs hardness of at least 3, where the average diametre of the solid particles is equal to or less than the average diametre of the high-strength particles. The matrix material is a synthetic resin based on melamine, acrylate, epoxide, polyurethane, polyamide, polyester, polyimide, caoutchouc, rubber or mixtures thereof. Said wear-proof coating can be used to make wear-resistant surfaces on wooden materials, decorative paper or wood-fibre boards having a decorative print, in making parquet floors, laminated floors, furniture surfaces and working surfaces, as well as for making wear-resistant surfaces of layers on substrates made from metal, glass, ceramic, plastic, concrete or other materials.

EFFECT: high wear resistance of the wear-proof coating without increasing wearing of the press plate or belt press.

16 cl, 2 dwg, 6 tbl

FIELD: polymer materials in paper-and-pulp industry.

SUBSTANCE: invention relates to manufacturing cellulose-polymer composites that can be, in particular, used in production paper or cardboard. Method according to invention providing a composition and manufacturing sheet therefrom followed by drying. In the method of invention, aqueous nanodispersion of polyorganosiloxanes is utilized, which can be introduced into composition or can be deposited onto sheet before drying on size press or after drying of sheet to moisture content not less than 12°.

EFFECT: improved waterproofness, increased inflammation temperature, and improved physicochemical characteristics of material.

4 cl

The invention relates to a method of reducing residue from the combustion of paper or paperboard coated, to a method of reducing wear of the grid used in the production of paper or cardboard, fibrous roll material coated

FIELD: food industry, tobacco.

SUBSTANCE: invention is related to smoking tobacco products, in particular - to a cigarette with low igniting capacity as well as to folding paper for such cigarette and such folding paper manufacture method. The cigarette with low igniting capacity contains folding paper (6) enveloping the stuffing material so that to impart a core shape to it. Integrated into the folding paper (6) are highly thermoconductive bands (10) formed by way of glasing and arranged along the cigarette direction (10). Thermal conductivity of the said highly thermoconductive bands is greater than inherent thermal conductivity of the folding paper (6). Additionally integrated into the folding paper are bands (16) for burning suppression formed on the folding paper (6) on top of the highly thermoconductive bands (10).

EFFECT: invention reduces the risk of combustible material ignition in case of a burning cigarette placement onto such combustible material.

16 cl, 2 tbl, 17 dwg

Smoking material // 2403834

FIELD: food industry.

SUBSTANCE: smoking material contains an overlay of a thin sheet material such as paper containing an adsorbent substance like activated carbon. The overlay is positioned near the outlet end of the smoking material to provide for more uniform profile of whiff in comparison with the common cigarette due to smoke components weakening during several final whiffs. The characteristics of the smoking material may be modified for increased smoke components delivery during several initial whiffs for maintenance of permanent outlet of nicotine and "dry resin" (NFDPM) in accordance with ISO standards.

EFFECT: adsorbent-containing paper covers only the smoking material part close to the outlet end and contains no flavouring agent.

28 cl, 15 dwg, 6 tbl, 4 ex

FIELD: tobacco industry.

SUBSTANCE: low-flammability cigarette paper is intended for smoking materials. It contains a base with areal density more than 22 g/m2 and many burning limiting areas which are spread over base cigarette paper surface. Burning limiting areas are made by application of sodium alginate with polymerisation degree from approx. 500 to approx. 900 or by application of 3% sodium alginate water solution with density degree 19000 centipoise or more at 25°C. Low-flammability base-containing cigarette paper contains filler in quantity 2 g/m2 or more, have air permeability from 30 to 60 KOREST units and sodium alginate is applied in quantity less than 3 g/m2.

EFFECT: flammability lowering.

14 cl, 1 dwg, 2 tbl

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

FIELD: tobacco industry.

SUBSTANCE: proposed is cigarette paper for manufacture of self-extinguishing cigarette. The cigarette paper contains a filler agent in an amount of 2 - 6 g/m2, its weight being equal to 16 - 22 g/m2. On one side of the paper sheet there are flame-retardant segments provided for. The said segments are coated with a flame-retardant agent in an amount of 0.2 - 1.8 g/m2 of the coated segment area. The above flame-retardant agent is represented by sodium alginate. The polymerisation degree of the sodium alginate alginic acid varies within the 500-900 range.

EFFECT: fabrication of low flame propagation cigarette paper due to reduction of the cigarette carbon monoxide/resin ratio (C/T).

5 cl, 1 dwg, 2 tbl

FIELD: tobacco products.

SUBSTANCE: methods proposed refer to reconstituted leaf tobacco production, as well as to production of modified reconstituted leaf tobacco. The methods are designed for cigarette manufacturing. One of the version refers to method of reconstituted leaf tobacco with binder production. The method implies production of suspension from tobacco and binder in given correlation. Preliminarily produced leaf of reconstituted tobacco, containing given quantity of wood paste, is enveloped with the suspension obtained. The suspension is complemented with a flavouring agent. The reconstituted leaf tobacco is supplemented with wetting reagent. A leaf of reconstituted tobacco is sliced into stripes. Several such stripes are placed into cigarette so that the stripes are adjacent to tobacco core. The other reconstituted leaf tobacco production version implies manufacturing of suspension from binder, wetting reagent, tobacco and flavouring agent, following defined proportions. The suspension is produced by sequential dispersion of tobacco, binder, wetting reagent and flavouring agent in water solvent. Then leaf production technological procedure is as described above. It also refers to cigarette, containing tobacco core, which is wrapped into outer envelopment, as well as to incomplete inner envelopment, presented by one or several stripes, made from reconstituted tobacco leaf. The inner envelopment is placed along the tobacco core, between the latter and outer envelopment. It also refers to reconstituted leaf tobacco, containing wood paste, binder and tobacco in defined proportion. The method of modified reconstituted leaf tobacco production includes the following operations. First, tobacco particle suspension is prepared in water solvent. The suspension obtained is then subjected to extraction processing at temperature of approximately 160°F for a period of approximately 30 minutes. Then the suspension is divided into extract with components, soluble in water, and solid fraction, which is mixed with wood paste and formed into leaf of reconstituted tobacco, using Fourdrinier machine. The extract is centrifugated, concentrated, supplemented with first binder and wetting reagent, applied to leaf of reconstituted tobacco and dried. Afterwards, the leaf is processed as described above.

EFFECT: decrease of ignitability for smoking products with one-layer envelopment.

50 cl, 8 dwg, 3 tbl, 3 ex

FIELD: smokables.

SUBSTANCE: strips of the inner wrap are coaxial to tobacco rod between that and internal surface of outer wrap of a cigarette. Tobacco mixture contains Burley tobacco and tobacco second type, e.g. flue-cured tobacco, Oriental tobacco, Maryland tobacco, rare tobacco, exotic tobacco or mixed.

EFFECT: smoke aroma is closer to Burley tobacco smoke aroma without higher content of harmful components in smoke.

63 cl, 11 dwg, 7 tbl, 4 ex

FIELD: tobacco articles and wrap for tobacco articles.

SUBSTANCE: paper wrap is treated with film forming composition forming individual treated portions on wrap. Individual treated portions have permeability within predetermined range sufficient for reducing burning capacity of tobacco article manufactured with the use of wrap. Film forming composition contains film forming material having relatively low viscosity. Thanks to this property, film forming material may have relatively high content of solid substances and yet be fit for applying onto wrap by means of standard printing methods.

EFFECT: increased efficiency in producing of tobacco articles capable of self-extinguishing upon falling onto inflammable materials.

38 cl, 3 dwg

FIELD: chemical industry; oil-refining industry; other industries; methods of production of the catalytic microporous fine-dispersed materials.

SUBSTANCE: the invention is pertaining to the method of production of the catalytic microporous fine-dispersed material, which is used in such processes, as purification of the oil fractions, purification of the sewage disposal, the catalytic conversion of the exhaust gases exiting from the combustion engines. The method allows to produce the catalytic microporous fine-dispersed material with the coating of the rare-earth metal oxide, in which the quantity of the metal oxide deposited on it is high without the risk for efficiency of the material. At that the rare-metal oxide is deposited on the outer surfaces of the indicated material and may be within the interval of 20-70 mass % with respect to with respect to the total equivalent content of the rare-earth metal oxide and the microporous fine-dispersed material. The method provides for the combination of the quantity of the colloid dispersion of the hydrate of the rare-earth metal oxide with the compatible microporous fine-dispersed material with formation of the suspension and the thermal treatment of the indicated suspension for the rare-earth metal oxide fixation on the outer surfaces of the indicated material. At that the indicated microporous fine-dispersed material has the average size of the pores less than 20 Å, and the indicated colloid dispersion has the particle size of the particles of not less than 20 Å. The invention also presents the catalytic free-loose fine-dispersed material with the rare-earth metal oxide coating containing the ceolite fine-dispersed material, the rare-earth metal oxide. At that the indicated ceolite fine-dispersed material has the average size of the pores less than the size of the particles of the indicated rare-earth metal oxide, and more than 20 mass % of the indicated rare-earth metal oxide is on the outer surfaces the indicated ceolite fine-dispersed material with respect to the total equivalent content of the rare-earth metal oxide and the ceolite. The ceolite free-loose fine-dispersed material having the high contents of the rare-earth metal oxide has the tendency to be the very stable material.

EFFECT: the invention ensures production of the catalytic microporous fine-dispersed material with the coating of the rare-earth metal oxide without the risk for efficiency of the material and the ceolite free-loose fine-dispersed material having the high contents of the rare-earth metal oxide has the tendency to be the very stable material.

31 cl, 11 ex, 3 tbl

Up!