Fibrous structures comprising particles

FIELD: textile and paper.

SUBSTANCE: proposed are fibrous structures containing one or more particles: - fibrous structure comprising a plurality of fibrous elements and one or more water-soluble, active agent-containing particles, one or more of the fibrous elements are water-soluble, fibrous elements comprise one or more filaments, at least one fibrous element comprises one or more filament-forming materials, at least one fibrous element comprises one or more active agents, one or more active agents comprises a surfactant, selected from the group consisting of: anionic surfactants, cationic surfactants, nonionic surfactants, zwitterionic surfactants, amphoteric surfactants and mixtures thereof; - multi-ply fibrous structure comprising at least one ply of said fibrous structure, one or more water-soluble, active agent-containing particles are positioned between the at least one ply of fibrous structure and a second ply of fibrous structure.

EFFECT: fibrous structures are proposed.

20 cl, 17 dwg, 5 tbl, 3 ex

 



 

Same patents:

Reinforcing mesh // 2539196

FIELD: construction.

SUBSTANCE: invention relates to meshy reinforcing roll materials designed for creation of reinforced layers in various coatings, for instance, road, asphalt, concrete ones, etc. The reinforcing mesh with cells formed by crossing bundles of threads, fixed by impregnation and/or a coating, where bundles comprise several threads, separate threads are longer compared to other threads of this bundle, and longer threads stretch in a wave-like manner and form loops. Bundles in one of crossing directions are made as doubled with a gap between each other, making from 0.01 to 0.55 of the bundle width, bundles in the other crossing direction are made as doubled without a gap between each other. Bundles doubled without a gap comprise longer threads stretching in a wave-like manner, forming loops that fix bundles doubled without a gap with bundles doubled with a gap in crossing zones. Width of bundles doubled with a gap makes from 1.3 to 2.5 of width of bundles doubled without a gap. Impregnation and/or coating is arranged by bitumen produced from water emulsion of bitumen.

EFFECT: reduction of possibility of irreversible deformation and damage of a mesh under conditions of considerable deformations of the coating and preservation of reinforcing ability of the mesh even after significant deformations of the coating.

2 dwg

Reinforcing mesh // 2539192

FIELD: construction.

SUBSTANCE: invention relates to meshy reinforcing roll materials designed for creation of reinforced layers in various coatings, for instance, soil, asphalt ones, etc. The reinforcing mesh with cells formed by crossing bundles of threads, fixed by impregnation and/or a coating, where bundles comprise several threads, separate threads are longer compared to other threads of this bundle, and longer threads stretch in a wave-like manner and form loops. Bundles in one of crossing directions are made as tripled with a gap between each other, at the same time each of three tripled bundles is made from two doubled bundles, placed without a gap between each other, bundles in the other crossing direction are made as tripled without a gap between each other, at the same time bundles tripled without a gap comprise longer threads stretching in a wave-like manner, forming loops, fixing bundles in the crossing zones as tripled without a gap, with bundles tripled with a gap. Impregnation and/or coating is arranged by bitumen produced from water emulsion of bitumen. The mesh is made with anisotropy by deformation capacity, where the anisotropy indicatrix is longitudinal to bundles of threads tripled without a gap.

EFFECT: reduction of possible irreversible deformation and damage of a mesh and also preservation of reinforcing ability of the mesh even after significant deformations of the coating.

2 dwg

FIELD: chemistry.

SUBSTANCE: water composition contains in wt % 15-40 solution of interpolymeric complex, 50-80 aqueous solution of thickening agent (concentration 8 - 14%) and acidity regulator 2H HCl to pH=2 - 4. Interpolymeric complex is obtained by mixing 1% solution of polyacrylacid and 10% solution of polyvinyl alcohol with component ratio 1:1. As thickening agent, applied is polyvinyl alcohol or polyethylenoxide. Viscosity of composition constitutes from 0.5 to 0.9 Pas.

EFFECT: application of claimed spinning composition makes it possible to obtain fibres with diameter 200 - 400 nm with high indicators of hygroscopicity and steam-permeabilityat quite fast rate.

1 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: polymer composition contains a first basic polymer (A) containing at least a thermoplastic polymer; a second basic polymer (B) containing at least a thermoplastic polymer and which is incompatible with the first basic polymer (A); and an additive (C) containing at least a substance which is incompatible with any of the first basic polymer (A) and the second basic polymer (B). The additive (C) is a liquid or suspension at temperature lower than the pyrolysis temperature of the first basic polymer (A) and the pyrolysis temperature of the second basic polymer (B). Components (A), (B) and (C) are separated from each other by a phase, and boundary surfaces, each lying between two phases (A), (B) and (C), are in contact with each other, forming spatially continuous parallel boundary surfaces. A moulded product, for example, is a filter or a spacer for refrigerators or capacitors. The polymer composition is used to produce an adhesive, ink, paint, films and fibre for a powdered catalyst.

EFFECT: polymer composition and products therefrom quasi-stably contain a large amount of substance which is incompatible with a polymer matrix, therefore suitable for obtaining moulded articles and other products having various properties.

25 cl, 10 ex

FIELD: chemistry.

SUBSTANCE: mixture of polypropylenes basically contains a first homopolypropylene and a second homopolypropylene. MFR of the first homopolypropylene is higher than that of the second homopolypropylene. The weight fraction of the second homopolypropylene in the mixture of polypropylenes ranges from at least 3 wt % to a maximum of 25 wt %, wherein the remaining portion of the mixture of polypropylenes is basically composed of the first homopolypropylene. The second homopolypropylene has MFR, according to ISO 1133, from 0.7 to 14 g/10 min (230C/2.16 kg). The difference between the MFR of the second homopolypropylene and the MFR of the first homopolypropylene is at least 10 g/10 min, and the upper limit of the MFR of the first homopolypropylene is 55 g/10 min (230C/2.16 kg), according to ISO 1133. The mixture 'basically' contains only these two homopolypropylenes as polymers. The mixture can be added to a dopant or other additives except polymers. The mixture is obtained by separately feeding the first and second homopolypropylenes into an extruder.

EFFECT: invention enables to obtain high-expandability spunbonded nonwoven material from the corresponding mixture of polypropylenes.

26 cl, 4 dwg, 9 tbl

FIELD: textile, paper.

SUBSTANCE: textile fabric joined with a binding system comprises the following, wt %, dry weight: 10-90 water dispersion of polymerizates on the basis of conjugated aliphatic dienes and vinyl aromatic compounds, 10-90 starch, 0-10 additives, where the fabric is a nonwoven material.

EFFECT: invention makes it possible to improve the ability of fabrics to preserve dimensions under high temperatures with preservation of flexibility, ageing and stability properties.

26 cl, 1 tbl

FIELD: electricity.

SUBSTANCE: invention refers to nonwoven fibrous materials that can be used in various electrochemical devices, hydrogen accumulators, filtration devices, catalytic substrates, etc. Nonwoven fibrous material consists of fragments of activated carbon fibre, the average characteristic ratio of which is approximately between 1 and 5.

EFFECT: increasing efficiency of electric duodielectric capacitors.

16 cl, 1 dwg

FIELD: textile, paper.

SUBSTANCE: material includes the first web, at least, partially made of extruded strands, including auto-adhesive material on the basis of thermoplastic elastomer selected from a group including multiblock copolymers with radial, triple- and double-block structures, containing non-rubber segments of mono- and polycyclic arenes, rubber segments of polybutadiene and sterol-butadiene, a mixture of polyethylene polymer and block copolymer polystyrene-copolyethylene-butylene-polystyrene, polystyrene-polyethylene. The method of nonwoven material formation includes extrusion of multiple strands, which are formed of auto-adhesive material. The method additionally includes sending multiple strands to a moving support, arrangement of multiple strands on a moving support, and then stabilisation of multiple strands with formation of fabric. The system of fixation includes a nonwoven material, which has a web formed of multiple extruded strands from auto-adhesive material. The system of fixation also includes a foamed layer, which includes a surface with multiple vertical ledges, which include a similar auto-adhesive material.

EFFECT: multiple use of articles with such fixation system, they are easy to handle.

18 cl, 8 dwg

FIELD: metallurgy.

SUBSTANCE: procedure consists in mixing polymer granulate with particles of filler, in extrusion melt of mixture through draw plate and in drawing or relaxation of produced filament if necessary. Contents of filler in terms of polymer filament is 10-25 wt % and average (D50) dimension of particles is less or equal to 6 mcm. Filler is free from titanium dioxide and consists out of calcium carbonate at lest at 90 wt %. There is fabricated textile flat fabric, particularly non-woven material, by stacking the said polymer filament or its mixture with homogenous or several different natural fibres. The said items are used for hygienic articles, clothes for cleaning, wiping, floor washing. gas and fluids filtering, for insulating and padding materials, for geo-materials etc.

EFFECT: increased contents of filler in filament without deterioration of operation characteristics.

19 cl, 2 tbl, 3 ex

FIELD: textile, paper.

SUBSTANCE: this invention refers to method and device for manufacture of polymeric fibres and textile products in a closed system. System for manufacture of non-woven cloth from fibres includes a spinning beam unit configured for processing and supply of many flows of polymers for extrusion through the spinning nozzle holes. At that, spinning beam unit includes many supply passages interconnected as to fluid medium with the spinning nozzle holes where at least two supply passages are configured so that they can supply separate flows of polymers with various polymeric components to the spinning nozzle holes. Besides spinning beam unit includes many collectors for separation and independent keeping of various temperatures for various flows of polymers with various polymeric components. Each collector provides homogeneous heating of polymer flow flowing inside discharge pipe of polymer inside each collector, each discharge pipe is enveloped with heat exchange pipe in fact at homogeneous temperature, quick cooling chamber for receiving and quick cooling of extruded fibres from spinning nozzle holes. At that, quick cooling chamber includes gas supply source for direction of gas flow to extruded fibres. Also the system includes an exhaust chamber interconnected with quick cooling chamber and configured for receipt and release of quick cooled fibres, and a forming surface for receipt of extruded fibres leaving the exhaust chamber and forming of non-woven fibrous cloth on the forming surface. At that, system supports extruded fibres in closed space between the spinning nozzle holes and exhaust chamber so that contact of fibres to uncontrolled gas flows can be prevented.

EFFECT: simplifying the fabrication of wide range of fibres from variety of polymeric components and textile products having the required linear density of fibre (denier) and degree of homogeneity.

8 cl, 9 dwg

FIELD: production of rolled road coat reinforcing materials.

SUBSTANCE: nonwoven material has two-axially oriented composite flexible structure comprising two groups of discretely arranged filaments held by binder. Said groups define three-layer structure in such a manner that group of transverse filaments is arranged between upper and lower subgroups divided by longitudinal filaments. Glass roving with linear density of at least 400 tex is used as source of filaments. Method involves, prior to laying of filaments, dividing group of longitudinal filaments into two subgroups; impregnating one of said groups of filaments with binder; laying transverse filaments between upper and lower subgroups of longitudinal filaments in mutually perpendicular direction; providing thermal processing, repeated impregnation with binder and drying to residual moisture content below 0.5 wt%. Resultant nonwoven material is in isotropic state.

EFFECT: stabilized physical and mechanical characteristics of nonwoven material under cyclic loading conditions.

5 cl, 1 tbl, 1 ex

FIELD: polymer materials.

SUBSTANCE: invention relates to technology of fabricating polyolefin fibers used for woven and nonwoven materials, in particular to imparting wettability to the latter, and can be used in manufacture of hygienic appliances, filters, accumulator battery separators, and the like. Elementary threads and two-component fibers are made from molten mixture of polyolefin and at least one compound of formula: R1-hydrophilic oligomer, wherein R1 denotes straight-chain or branched C22-C40-alkyl and hydrophilic oligomer is homo- or cooligomer comprising 2-10 monomer units derived from monomers selected from group including ethylene oxide, propylene oxide, ethylene glycol, propylene glycol, epichlorohydrin, acrylic acid, methacrylic acid, ethyleneimine, caprolactone, vinyl alcohol, and vinyl acetate.

EFFECT: achieved excellent prolonged wettability of fibers and textiles.

15 cl, 4 ex

FIELD: production of non-woven textile materials based on chemical filaments, and organosilicone preparation used as adhesion promoting agent.

SUBSTANCE: method involves applying organisilicone preparation onto filament; drying and forming fibrous cloth, followed by thermal pressing. Organosilicone preparation used in process is alcoholic solution or aqueous emulsion of vinyltriethoxysilane or oligovinylethoxysilane, said components being used in the following ratio: vinyltriethoxysilane or oligovinylethoxysiloxane 1.00-10.00; surfactant 0.05-0.5; ethyl alcohol and/or water the balance. Drying process is performed at room temperature. Hydrogen peroxide is applied at cloth formation stage. Thermal pressing of fibrous cloth is carried out at temperature approximating fiber polymer flow temperature and under pressure of 20·105 Pa during 0.02 s.

EFFECT: provision for producing of non-woven textile material with higher strength characteristics, air-permeability, elasticity, improved crease-resistance and higher resistance to wet processing and washing.

FIELD: textile; paper.

SUBSTANCE: filament fibers are produced. At the very least, part of them have a natural crimp, furthermore, filament fibers are laid out in warehouse storage for the transporting device creating a reserve. Furthermore, the filament fibers by means of the transporting device are relocated at the direction of the strengthening device. Furthermore, a gas current runs along the filament fibers in the direction of the transport for the reserve of filament fibers, along the surface of the reserve filament fibers.

EFFECT: even or homogenous structure.

13 cl, 4 dwg

FIELD: chemistry.

SUBSTANCE: inventions relate to method of producing nanofibres from polymer solution by method of electrostatic fibre formation in electric field, created due to difference of potentials between charged electrode and opposite electrode and device for its realisation. According to method polymer solution is supplied into electric field for electrostatic fibre formation by surface of rotating charged electrode, part of whose surface is submerged into polymer solution. Simultaneously formed nanofibres under impact of electric field are displaced from rotating charged electrode to opposite electrode and then are laid on means for their laying. Nanofibres are formed on cylindrical or quadrangular, or polygonal prismatic surface of charged electrode, and opposite electrode is placed opposite free part of charged electrode, air being sucked from space between charged electrode and opposite electrode. Device for method realisation contains rotating charged electrode and opposite electrode. Charged electrode represents cylinder or quadrangular or polygonal prism, and opposite electrode is placed opposite free part of charged electrode. Polymer solution for electrostatic fibre formation by surface of rotating charged electrode is supplied into created by electrodes electric field, simultaneously formed nanofibres under impact of electric field are displaced from rotating charged electrode to opposite electrode and then are directed to means of their laying, which represents air-permeable transporter. Means for laying nanofibres can be formed by flat carrying material of nanofibres.

EFFECT: increase of productivity of nanofibres production.

14 cl, 9 dwg

FIELD: textile, paper.

SUBSTANCE: this invention refers to method and device for manufacture of polymeric fibres and textile products in a closed system. System for manufacture of non-woven cloth from fibres includes a spinning beam unit configured for processing and supply of many flows of polymers for extrusion through the spinning nozzle holes. At that, spinning beam unit includes many supply passages interconnected as to fluid medium with the spinning nozzle holes where at least two supply passages are configured so that they can supply separate flows of polymers with various polymeric components to the spinning nozzle holes. Besides spinning beam unit includes many collectors for separation and independent keeping of various temperatures for various flows of polymers with various polymeric components. Each collector provides homogeneous heating of polymer flow flowing inside discharge pipe of polymer inside each collector, each discharge pipe is enveloped with heat exchange pipe in fact at homogeneous temperature, quick cooling chamber for receiving and quick cooling of extruded fibres from spinning nozzle holes. At that, quick cooling chamber includes gas supply source for direction of gas flow to extruded fibres. Also the system includes an exhaust chamber interconnected with quick cooling chamber and configured for receipt and release of quick cooled fibres, and a forming surface for receipt of extruded fibres leaving the exhaust chamber and forming of non-woven fibrous cloth on the forming surface. At that, system supports extruded fibres in closed space between the spinning nozzle holes and exhaust chamber so that contact of fibres to uncontrolled gas flows can be prevented.

EFFECT: simplifying the fabrication of wide range of fibres from variety of polymeric components and textile products having the required linear density of fibre (denier) and degree of homogeneity.

8 cl, 9 dwg

FIELD: metallurgy.

SUBSTANCE: procedure consists in mixing polymer granulate with particles of filler, in extrusion melt of mixture through draw plate and in drawing or relaxation of produced filament if necessary. Contents of filler in terms of polymer filament is 10-25 wt % and average (D50) dimension of particles is less or equal to 6 mcm. Filler is free from titanium dioxide and consists out of calcium carbonate at lest at 90 wt %. There is fabricated textile flat fabric, particularly non-woven material, by stacking the said polymer filament or its mixture with homogenous or several different natural fibres. The said items are used for hygienic articles, clothes for cleaning, wiping, floor washing. gas and fluids filtering, for insulating and padding materials, for geo-materials etc.

EFFECT: increased contents of filler in filament without deterioration of operation characteristics.

19 cl, 2 tbl, 3 ex

FIELD: textile, paper.

SUBSTANCE: material includes the first web, at least, partially made of extruded strands, including auto-adhesive material on the basis of thermoplastic elastomer selected from a group including multiblock copolymers with radial, triple- and double-block structures, containing non-rubber segments of mono- and polycyclic arenes, rubber segments of polybutadiene and sterol-butadiene, a mixture of polyethylene polymer and block copolymer polystyrene-copolyethylene-butylene-polystyrene, polystyrene-polyethylene. The method of nonwoven material formation includes extrusion of multiple strands, which are formed of auto-adhesive material. The method additionally includes sending multiple strands to a moving support, arrangement of multiple strands on a moving support, and then stabilisation of multiple strands with formation of fabric. The system of fixation includes a nonwoven material, which has a web formed of multiple extruded strands from auto-adhesive material. The system of fixation also includes a foamed layer, which includes a surface with multiple vertical ledges, which include a similar auto-adhesive material.

EFFECT: multiple use of articles with such fixation system, they are easy to handle.

18 cl, 8 dwg

FIELD: electricity.

SUBSTANCE: invention refers to nonwoven fibrous materials that can be used in various electrochemical devices, hydrogen accumulators, filtration devices, catalytic substrates, etc. Nonwoven fibrous material consists of fragments of activated carbon fibre, the average characteristic ratio of which is approximately between 1 and 5.

EFFECT: increasing efficiency of electric duodielectric capacitors.

16 cl, 1 dwg

FIELD: textile, paper.

SUBSTANCE: textile fabric joined with a binding system comprises the following, wt %, dry weight: 10-90 water dispersion of polymerizates on the basis of conjugated aliphatic dienes and vinyl aromatic compounds, 10-90 starch, 0-10 additives, where the fabric is a nonwoven material.

EFFECT: invention makes it possible to improve the ability of fabrics to preserve dimensions under high temperatures with preservation of flexibility, ageing and stability properties.

26 cl, 1 tbl

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