Needle-punched mat

FIELD: transportation.

SUBSTANCE: needle-punched mat for using in a car, comprising at least a needle-punched face layer as the top layer, made of staple fibres, distinguished by the fact that the staple fibres contain hollow fibres, the content of the hollow fibres being at least more than 45 wt % of all staple fibres.

EFFECT: preventing vehicle bottom corrosion in the cabin area.

16 cl, 5 dwg



Same patents:

Leather cleaner // 2521302

FIELD: process engineering.

SUBSTANCE: invention relates to leather conditioner comprising a fibrous substrate and cleaning composition activated by dampening with water with subsequent mechanical effects that allow production of cleaning foam. It differs from known designs in that said substrate is composed by a pad based on cotton fibre braided by water jets of mass varying from 100 g/m2 to 300 g/m2. Note here that cleaning composition contains at least one surfactant in amount of 15-35 wt % with respect to total mass of glycerine and glycerine in amount of 55-75 wt %. Amount of water at substrate is 25% smaller than article mass. This article contains 0.1-1.2 g of active material of said composition per 1 g of said substrate. Note here that article strength in machine direction after its dampening is at least 10% higher than that before dampening.

EFFECT: quantity of pellets on substrate after abrasion makes at least half their quantity compared with said substrate without liquid cosmetic means.

11 cl, 1 tbl, 3 dwg

FIELD: personal use articles.

SUBSTANCE: wet wipe or thin hygienic material that can be sewered contains nonwoven material that is bonded through fibres intertangling with jets of liquid, impregnated with a moistening composition. The nonwoven material contains wood pulp in an amount of at least 70% of the fibre mass, the rest represented by chemical fibres and/or natural fibres with length equal to at least 6 - 15 mm. The length of the wet wipe or thin hygienic material in the treatment direction exceeds the width in a direction crosswise relative to that of treatment by at least 25%; their moist condition strength in the treatment direction exceeds moist condition strength in a direction crosswise relative to that of treatment at least 3 times; the moist condition strength in a direction crosswise relative to that of treatment is equal to 50-200 N/m. The wet wipe or thin hygienic material contains a substance increasing moist state strength in an amount of no more than 0.1 wt % in terms of dry weight.

EFFECT: ensuring the possibility of the product disintegration when in the sewage combined with increased strength in the usage direction.

5 cl, 1 tbl, 7 ex

FIELD: textiles, paper.

SUBSTANCE: method consists of a continuous winding of strip textile material on a mandrel with a certain pitch, selected on the basis of the strip width and the number of layers of the product, stitching of the wound material and machining of the outer surface after impregnation and heat treatment. The stitching is carried out only of a part of the package of the strip layers adjacent to the mandrel in bending (folding) of the outer part of the strip layers directly in the place of stitching which is carried out with the location of seams and also with the winding pitch.

EFFECT: improvement of quality of multilayer transversally reinforced workpieces of composite materials due to providing regular reinforcement throughout the workpiece surfaces, and avoiding of the end threads during machining.

1 cl, 1 dwg

FIELD: textiles, paper.

SUBSTANCE: fibrous absorber of electromagnetic radiation comprises two inner layers of a mixture of dielectric and electrically conducting carbon fibers which are mechanically fastened to each other by needling. Manufacturing of the absorber is carried out from the mixture of dielectric and electrically conducting carbon fibers, in which carbon fiber is used as electrically conducting carbon fibers. Carbon fiber is used with specific insulation resistance from 1.510-3 to 1.0 Ohm cm, and the deviation from the average value of content of carbon fiber in 1 g of the mixture does not exceed 5% by weight. The absorber additionally comprises two outer layers of rubberised fabric. The absorber has the structure of the inner layers of a mixture of dielectric and electrically conducting carbon fibers fixed by piercing with needles with a density of piercing from above of 520 cm-2, from below of 20100 cm-2. The absorber layers are made of rubberised fabric, on the edges they are tightly stuck to each other or connected by double-faced adhesive tape.

EFFECT: improving hygienic indicators of garments with volumetric unconnected heat retainers, change in thickness of adequately to change in conditions of the ambient environment, and reduction of specific consumption of valuable heat retainer to obtain the specified thermal insulation properties.

3 cl, 2 dwg, 1 tbl, 3 ex

FIELD: process engineering.

SUBSTANCE: invention relates to cleaning of hydrocarbon fuel, particularly, to multilayer nonwoven filtration material. Proposed material comprises layers of synthetic staple fibers bonded together by bundles of fibers of fibrous layers formed by dual-side needle-punching to extend down to definite depth of every layer. Said material is subjected to heat setting and comprises four layers. First and second layers consist of the mix of polyester fibers with linear density of 0.33 tex and 0.17 tex at the ratio of fibers in said mix making 50:50 wt %. Third and fourth layers consist of polyester fibers with linear density of 0.33 tex. Every nest layer is laid on previous one. Said layers are bonded by sequential needle-punching by bundles of fibers, penetration depth of which makes at least 1/3 of previous layer thickness. Penetration zones of bundles are shifted relative to each other and to previous layer and to next layer by amount of feed for punching. Note here that first and second layers are additionally bonded by punching on the first layer side.

EFFECT: longer life, nominal filtration rating of 5 mcm.

1 dwg, 1 tbl

FIELD: textiles, paper.

SUBSTANCE: material comprises fibrous layers of a mixture of viscose, polypropylene and bicomponent fibers, bonded with the back-up substrate, in the following ratio of components: viscose fibers (0.17-0.33) tex - (20-40) wt.% polypropylene fibers (0.33-0.67) tex - (30-45) wt %, polypropylene fibers 1.7 tex - (5-10) wt.%, bicomponent fibers (0.22-0.40) tex (20 - 30) wt %, calcium chloride (15-50) wt %. The surface density of the obtained filter material is (100-500) g/m2, air permeability (550-850) dm3/m2s, hygroscopicity (25.0-47.5)%. The objects of the invention are also variants of the method of manufacturing non-woven filter material, the first of which involves the processing of viscose and polypropylene fibers with an aqueous solution of calcium chloride with the mass concentration (100-500) g/dm3 at processing module (1:21:5) of weight parts for viscose fibers, at processing module (1:1.51:3) of weight parts for polypropylene fibers. The version 2 of the claimed method provides for the processing of the whole filtering material with a solution of calcium chloride, which mass concentration is (100-500) g/dm3 at processing module (1:1.151:3) of weight parts. In both versions, drying of the treated material is carried out at a temperature not exceeding 80C and heat treatment with hot air at a temperature of (120-145)C.

EFFECT: obtaining a porous hydrophilic filter material with a high air permeability and stability of shape, providing moisture and warming of air entering the patient's lungs through a breathing filter when endotracheal anesthesia and mechanical lungs ventilation.

18 cl, 1 dwg, 5 ex

FIELD: textiles, paper.

SUBSTANCE: invention comprises a flat-shaped textile product and reinforcing material. At that, the flat-shaped textile product, which is already reinforced, is reinforced by the hydrodynamic method. Reinforcement is made in the form of reinforcing fibers with a diameter of 0.1-1 mm or 10-400 tex, and the Young's modulus is at least 5 GPa.

EFFECT: invention enables to create base layers with improved properties for use as base layers for coated roofing and waterproofing materials.

41 cl, 6 dwg, 1 tbl

FIELD: textile; paper.

SUBSTANCE: in one or several areas on the outer side of a mesh drum there are no elevations, and there are only holes. At the same time the areas with elevation and serving to create an image on the surface of fibre canvass, for instance, an image of an animal, a plant or a geometric ornament, are arranged or grouped accordingly on the mesh drum shell, and surround or confine the image created on the surface at the outer side of the mesh drum.

EFFECT: invention makes it possible to include various images into the material, without negative effect at material fixation.

15 cl, 8 dwg

FIELD: chemistry.

SUBSTANCE: method involves saturating fibre with an alcohol solution or aqueous emulsion containing 0.5-10.5% oligo(3-aminopropyl)(octyl)ethoxysiloxane, drying in air and forming a nonwoven web followed by needling. Thermal treatment at 100-140C for 5-10 minutes is carried out in order to hold the oligo(3-aminopropyl)(octyl)ethoxysiloxane on the surface of the fibre.

EFFECT: nonwoven material has high strength, sorption capacity, water absorption and soaking capacity.

5 ex

Composite material // 2428529

FIELD: textile, paper.

SUBSTANCE: composite material, containing at least one mechanically strengthened carded web of glass fibre, and at least one mechanically strengthened carded web of mineral fibre applied at one side and having higher heat resistance compared to mechanically strengthened carded web of glass fibre. At the same time both glass fibre web and mineral fibre web are joined to each other by means of needle piercing.

EFFECT: insulation material may be used in the range of high temperatures, and its production does not require high costs.

27 cl

FIELD: textile industry.

SUBSTANCE: three-dimensional nonwoven fibrous textile material is composed of netted woven carcass and layers of fibrous cloths arranged at both sides of carcass and mechanically attached thereto. Carcass is produced from thermoplastic weft threads with linear density of 29-72 tex and thermoplastic warp threads with linear density of 14-20 tex and surface density of 80-220 g/m2. Said threads are preliminarily subjected to shrinkage. Method involves applying onto melted netted woven carcass layers of fibrous materials and mechanically attaching said layer in alternation to each side; applying onto each side of carcass at least one layer of fibrous cloth and attaching it by needle stitching; subjecting nonwoven material to thermal processing at temperature of 80-1580C under pressure of 0.3-0.6 MPa for 40-120 min.

EFFECT: improved organoliptical properties and improved appearance of material.

3 cl

FIELD: textile industry, in particular, versions of nonwoven fibrous material made in the form of needle stitched web.

SUBSTANCE: material is manufactured from mixture of high-melting point and various low-melting point fibers, with main fiber being two-component polyester fiber of "core-coat" type. Polymer of "coat" has melting temperature substantially lower than polymer of "core". According to first version, low-melting point fiber used is staple two-component polyester fiber of "core-coat" type having thickness of 0.4-1.0 tex, length of 50-90 mm and melting temperature of "coat" polymer of 105-115 C. High-melting point fiber is staple polyester fiber having thickness of 0.3-1.7 tex, length of 60-90 mm and melting temperature of 240-260 C. Ratio of fibers in mixture, wt%, is: staple two-component polyester fiber of "core-coat" type 30-70; staple polyester fiber the balance to 100. According to second version, nonwoven fabric additionally comprises auxiliary staple polypropylene fiber having thickness of 0.6-1.7 tex, length of 50-90 mm and melting temperature of 150-160 C. Ratio of fibers in mixture is, wt%: staple two-component polyester fiber of "core-coat" type 30-70; staple polypropylene fiber 5-20; staple polyester fiber the balance to 100.

EFFECT: improved operating properties and form stability of parts manufactured from nonwoven fibrous material under conditions of changing temperature loadings.

3 cl, 1 tbl, 5 ex

FIELD: chemical and light industry, in particular, production of viscose staple fiber containing antibacterial preparation for manufacture of non-woven material used for manufacture of air filters.

SUBSTANCE: method involves washing formed viscose threads; squeezing to provide 50%-content of α-cellulose; treating with aqueous catamine solution having mass concentration of 15-40 g/dm3; providing two-staged washing procedure in countercurrent of softened water at feeding and discharge temperature difference making 4-6 C at first stage and 3-5 C at second stage. Temperature of aqueous catamine solution is 18-30 C. Resultant thread has linear density of single fibers of 0.17-0.22 tex and mass fraction of 0.6-4.0% of catamine. Thread is subjected to drying process at temperature of drying drum surface of 80-90 C, followed by corrugation and cutting into 60-70 mm long fibers. Method further involves fixing resultant fibrous web by stitching process on substrate of thermally secured polypropylene having surface density of 10-30 g/m2.

EFFECT: enhanced antibacterial properties and reduced aerodynamic resistance of resultant material allowing blowing-off of fibers from filter layer by flow of air under filtering process to be prevented.

3 cl, 2 tbl, 6 ex

Biomat // 2321982

FIELD: reinforcement and protection of ground surfaces such as ground planning embankment slopes, automobile and railway roads, open pits, dry slopes of earth-fill dams etc from erosion processes by quick recovery of soil and plant layer.

SUBSTANCE: biomat is formed as multiple-layer, at least three-layer, structure including layers of cloth comprising artificial chemical fibers, and intermediate layer placed between each two cloth layers and secured therewith, said intermediate layer comprising plant seeds. Natural fibers are added into cloth so as to form mixture of natural and synthetic fibers, said mixture containing at least 15-50 wt% of synthetic fibers and 50-85 wt% of natural fibers from materials which form upon decomposition nutritive medium for plants, and surface density of cloth ranging between 250 and 800 g/m2. Apart from seeds of plants presented in cloth structure in an amount of 60-150 g/m2, cloth additionally contains nutrient mixture consisting of fertilizers, plant growth promoters and soil forming additives selected with soil-ground conditions of region where biomat is to be utilized and composition of used seeds being taken into consideration. Content of nutrient mixture is 20-90 g/m2. Also, natural or artificial sorbing substances are introduced into biomat structure in an amount of 30-600 g/m2 by embedding of these substances into cloth or composition of intermediate layer. Biomat may be readily unrolled on any ground surface and serves as artificial soil layer.

EFFECT: high moisture retention capacity providing formation of stable soil and ground covering, improved protection of ground surface from erosion processes, retention of plant seeds during growing, efficient development of root system during vegetation and high vitality of plant covering during formation thereof.

7 cl, 1 tbl

FIELD: technological processes.

SUBSTANCE: invention is manufactured out of thermostable or heat resistant fibres and may be used for manufacturing parts out of thermal structural composite material. Carbon nanotubes are in-built into fibre structure by means of their growing on the heat-resistant fibres of the basis.

EFFECT: provides more well-ordered tightening of parts and improvement of mechanical qualities.

31 cl, 6 dwg, 9 ex

FIELD: textiles.

SUBSTANCE: invention relates to an apparatus for colourless patterning of a textile fabric made of mutually interlaced and thus strengthened natural or synthetic fibres, preferably of a nonwoven fabric such as a wadding web, which is also dried in the case of a wet treatment such as hydrodynamic needling. The apparatus comprises a housing and a revolving drum provided therein, whereby the textile fabric is pressed by an overpressure and underpressure against the drum having perforations so that the cross-sectional areas of the perforations generate a picture pattern on the textile fabric, wherein an external peripheral surface of the drum being subject to drawing is provided with perforations depicting an image, which perforations act in diverse pattern-imparting fashions on the textile fabric resting thereon. Moreover, the drum and its external peripheral surface are microperforated as a whole and thus fluid-permeable, and the pattern-imparting perforations are sized larger than the microperforation of the surface supporting the textile fabric, Moreover, the textile fabric is capable of leading the fluid away from the entire surface in a region of the pictorial pattern and also beyond peripheral regions of the pictorial pattern.

EFFECT: providing a method with which a pattern can be continuously imposed on a nonwoven fabric in the course of treatment.

11 cl, 2 dwg

FIELD: textile; paper.

SUBSTANCE: presented bed for implementation of hydrocrowding process is manufactured by means of including in it depressed fibres during its manufacturing or forming of depressed fibres by means of calendering or grinding of initial fabric. Including of depressed fibres into bed at manufacturing of nonwoven fabrics provides higher crowding of fibres forming nonwoven fabrics.

EFFECT: creation of more rugged finished nonwoven material.

20 cl, 10 dwg

FIELD: textile; paper; process.

SUBSTANCE: method provides forming of composition nonwoven material with surface layer, underlayer and wireframe interlayer made of polymer material, at that received structure is passed through shafting. In the course of protective material receiving surface layer and underlayer form with surface density 200-400 g/m2, at that thickness of wireframe interlayer is 100-250 micron. Layers binding is implemented by means of passing through tightly pressured shafting, at that ratio of shafts diameters is 1:[6-8], big shaft is heated till temperature 180-250°C, and its rotational velocity is 1.2-4 rpm. Finished nonwoven material is enrolled and held at temperature 18-24°C during at least three days.

EFFECT: improvement of material physical properties; reduction of ecological stress to environment and reduction of material and technical consumption at its recovery.

1 tbl, 1 ex

FIELD: textile, paper.

SUBSTANCE: invention refers to nonwoven material technology and can as a base of building, finishing and other similar materials. Method for making nonwoven needled felt involves pulverisation and emulsification of mixture, rest, hackle webbing, cure, dipping in binder, drying, and cooling. Thus rest is followed with straight and cross hackling packed within at least five web layers needle-punched over two stages. Besides before the second stage, reinforcing filament is added, while material is pull-up smoothed, glazed and dipped in binder, dried and processed in cold glazer.

EFFECT: higher efficiency of method for making nonwoven needled felt with improved application performance.

12 cl, 2 tbl

FIELD: engineering procedures.

SUBSTANCE: one version of the method consists that the cloth is placed on porous substrate movable on the straight or rotating about the axis. At least one side of the cloth is processed with some water jets rowed perpendicularly to cloth moving direction. Herewith a row is formed with one-section jets and at least other section jets different from the first one.

EFFECT: improved surface properties of the product.

33 cl, 17 dwg