Yarns and mechanical finishing of yarns or ropes and warping or beaming (D02)

D   Textiles; paper(37391)
D02            Yarns; mechanical finishing of yarns or ropes; warping or beaming(1090)
Heat resistant fabric of polymer fibers and products made from this fabric // 2614002
FIELD: textile, paper.SUBSTANCE: heat-resistant fabric is made by interlacing warp and weft yarns with a combined plain weave, with warp cord on the chain and with weft cord on the filling. The fabric is made of background warp on the chain and a mixed two-strand yarn consisting of equal parts of para-aramid fiber and polyoxadiazole 50×50 fiber. The resultant linear density of the fabric is 60 Tex. The fabric is reinforced on the chain and the filling by a double complex arimide thread 29.4 Tex × 2. The ratio of yarn to thread in the fabric is 75/25, and the surface density is 260 g/m2. The fabric was further treated with at least one organofluorine preparation.EFFECT: better combustion efficiency increased fire resistance, decreased stiffness and improved flexibility and draping characteristics in conditions of the Far North.4 cl, 2 tbl, 1 dwg

Device to control formation of warping rolls // 2613450
FIELD: textile, paper.SUBSTANCE: device to control the formation of warping rolls contains a warping roll electric drive, a compressing roll electric drive, a winding radius calculating unit, a warping roll speed sensor, a compressing roll rotation impulse speed sensor, a warping roll impulse speed sensor, a winding radius increment determination unit. Warping roll impulse speed sensor and compressing roll impulse speed sensor are connected with their outputs to inputs of winding radius calculating unit, an output of which is connected to the first input of the winding radius increment determination unit of the warping roll, the second input of which is connected to the output of the warping roll speed sensor, and the output of the winding radius increment determination unit is connected to the compressing roll electric drive, according to the invention, comprises a compressing roll rotation electric drive, a contactless winding radius sensor and an adder. Output of winding radius calculating unit is connected to the first adder input, the contactless winding radius sensor is connected to its second input, and the adder output is connected to the compressing roll rotation electric drive.EFFECT: improved stabilization accuracy of bulk winding density.1 dwg
High modulus high strength uhmwpe fiber and method for its production // 2612714
FIELD: chemistry.SUBSTANCE: invention relates to high modulus high strength fiber made of ultrahigh molecular weight polyethylene (UHMWPE) and a method for its preparation. Methods are described for obtaining threads and multithread yarn from UHMW polyethylene (UHMWPE), as well as the yarn and products made thereof. Each method provides UHMWPE threads with strength of 45 to 60 grams/denier.EFFECT: invention provides an effective way to create yarn from ultrahigh molecular weight high strength polyethylene or with higher productivity on an industrial scale.10 cl, 6 ex

Aramid copolymer yarn having low residual sulphur // 2610403
FIELD: textile.SUBSTANCE: present invention relates to yarn, containing a polymer, which contains imidazole groups, wherein yarn has content of sulphur from 0.01 to 3.0 wt%, based on weight of yarn.EFFECT: yarn is characterised by tenacity of 30 cN/dtex (33 3/10 gpd) or higher.14 cl, 4 dwg, 8 tbl

ethod of producing yarn with alternating twist // 2608808
FIELD: textile and paper.SUBSTANCE: method can be used for production of yarn with alternating twist and ensures yarn quality with reduction of labor input, simplified design and servicing. Method involves alternating torsion of yarn with help of three identical reversive pneumatic reels, two of which are close to exhaust device, third is to receiving spool. At that, simultaneous twisting of two slivers is performed with same pressure of compressed air into two reels, close to exhaust device, and subsequent twisting of slivers in third connecting reel, approached to receiving reel. Rotation direction of air in all reels is constant and can be both clockwise and counter clockwise. Produced yarn has original structure.EFFECT: method of alternating twist makes it possible to increase strength yarn obtained by reel method.1 cl, 1 dwg
Twisted long article from mixed textile fabrics or scrap material // 2605170
FIELD: metal processing.SUBSTANCE: long twisted article for producing an article form of yarn, string, rope, cable, that is made from mechanically twisted from 10 to 50 turns per metre of bundle of bands with width from 10 to 80 mm, obtained from wastes mixed textile fabrics or scrap mixed textile fabrics, wherein material from which bands are made, selected from wastes of mixed textile fabrics or scrap, has surface density of not less than 0.9 g/cm3.EFFECT: high density.1 cl

ethod of splitted carbon fiber producing and device for its implementation // 2604319
FIELD: aircraft engineering.SUBSTANCE: invention is intended for use in aircraft engineering, particularly in production of splitted carbon fiber for making reinforced plastic parts (for example, brake discs), and can be used in machine building. In disclosed method of splitted carbon producing air flow passes through conical nozzle, which outlet diameter is several times less than housing inner diameter and, consequently, air stream base cross section area leaving conical nozzle, is many times smaller than one of housing inner surface. This provides for high flow rate at carbon supply nozzle edge to create maximum entraining effect. Carbon fiber reaching divergent air stream base leaving conical nozzle hole is splitted.EFFECT: simplified design, reduced device overall dimensions and cost reduction.3 cl, 3 dwg

Textile reinforcement comprising continuous aramid yarn // 2599673
FIELD: chemistry.SUBSTANCE: invention relates to polymer textile materials of special purpose and concerns textile reinforcement, comprising a continuous aramid yarn. Yarn has a finish containing mono-or dialkyl phosphate ester or a mixture thereof. Finish is free of compounds with alkoxy groups and comprises a mono- or dialkyl phosphate ester, has formula (I), in which R1 is a branched or straight C1-C15-alkyl, R2 is H, Li, Na, K or NH4 or branched or straight C1-C15-alkyl, and M denotes Li, Na, K or NH4. Textile reinforcement can be used to produce hoses, pipes, flexible pipes, fibre-optic cables, power cables, fiber-reinforced composites and articles with ballistic resistance.EFFECT: invention provides creation of efficient technology of finishing continuous aramid yarn for production of quality textile reinforcement.15 cl, 1 dwg, 6 ex, 17 tbl

Fire-resistant fibre, yarn and fabric made therefrom // 2596738
FIELD: chemistry; textile and paper.SUBSTANCE: invention relates to chemical engineering of textile materials and fire-resistant fibres, yarn and fabric therefrom. Fire-resistant staple spun yarn comprises at least one fire-resistant fibre containing partially aromatic polyamide and non-halogenated fire retardant, and additionally contains additional fibre.EFFECT: considered fibre and yarn when mixed with other fire-resistant fibres do not exhibit dangerous “scaffolding effect”, provide good fire resistance, prevent dripping and adhesion, are wear-resistant and are suitable for processing into wear-resistant, durable fire-resistant fabric, canvas or piece of clothing.22 cl, 14 dwg, 2 tbl

Copolymer and synthesis methods thereof // 2596219
FIELD: chemistry.SUBSTANCE: invention relates to chemical engineering of fibre polymer materials and yarns and fibres, consisting of copolymer fibres, and methods for preparing them. Yarn comprising copolymer derived from copolymerisation of para-phenylenediamine, 5(6)-amino-2-(p-aminophenyl)benzimidazole, and terephthaloyl dichloride, wherein ratio of moles of 5(6)-amino-2-(p-aminophenyl)benzimidazole to moles of para- phenylenediamine is 30/70 to 85/15; said yarn having a sulphur content greater than 0.1 % and having an effective polymer cation to sulphur content molar ratio of at least 0.3, additional aspects of present invention relates to methods of producing said types of yarn.EFFECT: invention provides an efficient method of producing copolymer fibres with improved physical properties.13 cl, 2 dwg, 2 tbl, 5 ex

Protective fibre, forgery-protected paper containing protective fibre and method for production thereof // 2590538
FIELD: textile and paper.SUBSTANCE: invention relates to counterfeit protection and concerns anti-counterfeiting fibre (1), an anti-counterfeiting paper containing anti-counterfeiting fibre and a method of making same. Anti-counterfeiting fibre is a slice (4) or part of a slice cut along cross-section (3) of strip-shaped fibre (2), wherein strip-shaped fibre comprises a specific structure along length direction providing anti-counterfeiting characteristics.EFFECT: structures made using principles of present method have better orientation compared to existing structures of making protective fibres during paper manufacture and can create more unique optical characteristics.27 cl, 135 dwg, 13 ex

Ion-coupled halide containing fibre based on sulphur containing imidazole // 2578294
FIELD: chemistry.SUBSTANCE: fibre is obtained from a polymer containing imidazole groups. The fibre additionally contains: i) a halide anion present in an amount in the range of 0.05 to 20.1 wt %, based on the weight of the fibre; ii) sulphur, where the sulphur is present in the fibre in an amount in the range of 0.05 to 3 wt %.EFFECT: invention enables to produce fibres having improved tensile strength.21 cl, 4 dwg, 12 tbl, 9 ex

Cords of cellulose multifilament yarns with increased titre of individual elementary yarn // 2569088
FIELD: textiles, paper.SUBSTANCE: invention relates to light industry and relates to cords of cellulose multifilament yarns with increased titre of individual elementary yarn. The cord comprises the cellulose multifilament yarn, has a strength of at least 35 cN/tex, and the individual elementary yarns of the multifilament yarn have a titre of at least 2.3 dtex. The structure of the cord with a twist factor is Tf=185 during fatigue test with the use of a disc with the settings of compression/expansion of -20/+2%, and the number of cycles equal to 855.000 performed and evaluated according to ASTM D 6588, it has at least 1.1 times higher fatigue resistance than that of the cord with the same twist coefficient and with the titre of individual elementary yarn equal ≤2.0 dtex.EFFECT: invention provides a cord with improved fatigue properties, ie higher fatigue resistance than the conventional cords with the titre of individual elementary yarn of 1 to 2 dtex.11 cl, 4 dwg, 1 ex

Control device of warping beam formation // 2564590
FIELD: textiles, paper.SUBSTANCE: control device of warping beam formation, comprising a warping beam with electric drive of the warping beam and a pulse sensor of the warping beam rotation speed and a compacting shaft with the mechanism of its movement and the pulse sensor of the compacting shaft rotation speed, connected to the calculation unit of the actual radius of winding, comprises additionally a roller pair with electric drive, the calculation unit of the theoretical radius of winding, the relay unit and the adder, at that the calculation unit of the actual radius of winding is connected with its output to the first input of the adder, connected with the second input to the output of the calculation unit of the theoretical radius of winding, connected with its input together with the first input of the calculation unit of the actual radius of winding to the output of the pulse sensor of the warping beam rotation speed, and the output of the adder is connected through the relay unit to the input of the electric drive of the roller pair.EFFECT: improved accuracy of stabilization of winding density of the base.1 dwg

Device for forming interweaving knots and method of forming interweaving knots // 2546474
FIELD: textiles, paper.SUBSTANCE: at that thread is guided along the bypassing guiding groove of the rotating nozzle ring in contact with the base of the contact groove. The nozzle ring is directed on the fixed stator, which has an opening of the chamber on the contour, which is connected to the pressure chamber. Inside the nozzle ring a nozzle opening is provided terminating in the guiding groove, which in rotation of the nozzle end communicates with the opening of the chamber for generating a pressure pulse in the guiding groove. At that the thread is directed between the input thread guide and the output thread guide, which are located on both sides of the nozzle ring, and the opening angle of the opening of the chamber in the stator and the contact span angle of the thread in the guiding groove are overlapped. According to the invention the input thread guide and the output thread guide are arranged so that the contact span angle of the thread in the guiding groove of the nozzle ring is greater than the opening angle of the opening of the chamber in the stator. Thereby the thread before forming a pressure pulse is sent with the contact, and for affecting the thread tension the nozzle ring is preferably driven with the peripheral speed which is less than the speed of the thread.EFFECT: dense and pronounced interweaving knots are formed on the threads, which are highly flexible at the same time.13 cl, 5 dwg

ethod of obtaining polymer-containing fibres // 2545331
FIELD: chemistry.SUBSTANCE: invention relates to method of spinning fibre, containing polypeptide polymer, as well as to products, including said polymer fibre. Method of fibre spinning includes draft of fibre from dope solution, containing polymer, preferably silk polypeptide which can be introduced into water solution with concentration constituting at least 0.15 mg/ml, polyacrylamide (PAA), which increases longitudinal viscosity of dope solution, and solvent. Invention makes it possible to obtain fibres, including living and non-living biological material, which could perform function of framework material for fabric engineering and growing artificial organs.EFFECT: application of PAA in dope solution results in obtaining smooth and homogeneous fibres, non-biodegradable and long-lasting, in addition, application of very low concentrations of polymers and/or very low concentrations of improvers of PAA longitudinal viscosity facilitates spinning of fibres from dope solution.24 cl, 4 dwg, 7 ex

Control device of formation of warping beams // 2537145
FIELD: textiles, paper.SUBSTANCE: invention relates to equipment of the textile industry and can be used in the preparatory department of a weaving factory based on warping and beaming machines. A control device of formation of warping beams comprises the warping and pressure beams, an electric drive of the pressure beam, a sensor of the warping beam number of turns, it additionally comprises a measuring roll, the sensor of the measuring roll number of turns, a multiplying unit, a radius setting unit of the measuring roll, a unit of calculation of the length of a wound warp, a unit of calculation of the area of the winding cross section, the first and second units of division, a setting unit of thickness of the wound warp, and an adder, at that the output of the sensor of the measuring roll number of turns of is connected to the first input of the multiplying unit and the first input of the unit of calculation of the length of the wound warp, the second inputs of which are connected to the output of the radius setting unit of the measuring roll, the output of the multiplying unit is connected to the first output of the first unit of division, the second input of which is connected to the sensor of the warping beam number of turns , the output of the first unit of division is connected to the input of the unit of calculation of the area of the winding cross section of the warping beam, connected with its output to the second input of the second unit of division, the first input of which is connected to the output of the unit of calculation of the length of the wound warp, and the output is connected to the first input of the adder connected with its second input to the output of the setting unit of the thickness of the warp, and with the output - to the input of the electric drive of the pressure beam.EFFECT: invention is directed at increase in accuracy of maintaining the winding parameters of the warping beam, namely, the density and length of the wound warp.1 dwg

Fire resistant yarn, fabric, clothing and fire resistant workwear // 2533675
FIELD: textiles, paper.SUBSTANCE: fire resistant yarn comprises the fibre based on polyarylate and the fibre on acrylic base, comprising antimony compound, also contains from 1 to 30 wt % fibre based on polyarylate relating to the total weight of the fire resistant yarn. The proposed fire resistant fabric comprises a fibre based on polyarylate and the fibre on acrylic base, comprising antimony compound, also contains from 1 to 30 wt % fibre based on polyarylate relating to the total weight of the fire resistant fabric. The proposed clothing and the fire resistant workwear comprises the fire resistant fabric.EFFECT: low cost of fire resistant yarn, fire resistant fabric, and fire resistant workwear, excellent aesthetic characteristics and fire-resistant properties.19 cl

Device for forming identical packages on beam warping machine // 2531886
FIELD: textiles, paper.SUBSTANCE: invention relates to the textile industry, namely to devices of forming the identical packages in the preparatory department of weaving factory on beam warping machines. The device for forming the identical packages on the beam warping machine comprises an electric motor, a sensor of number of pulses from quill of the warping machine, a sensor of number of pulses from the strap roller sensor, the electromagnetic clutch, the power amplifier, the scaling amplifier, the digital to analogue converter and the control unit, which is characterized in that it additionally comprises a synchronizer unit designed for automatic search of the nominal linear warping speed corresponding to the linear density of the processed yarn, the first input of which is connected to the first output of the control unit, the second output of the control unit is connected to the second input of the synchroniser unit, which output is connected to the electric motor.EFFECT: improvement of accuracy of regulation.1 dwg

Textile fabric resistant to punctures and article containing such textile fabric // 2525809
FIELD: textiles, paper.SUBSTANCE: textile fabric resistant to punctures and articles containing such textile fabric are presented. This textile fabric resistant to punctures is characterised in that at the same protection from bullets it has enhanced protective effect against shrapnel and additional improved effect against punctures.EFFECT: useful combination of properties of textile fabric resistant to punctures is given to corresponding product which comprises this textile fabric resistant to punctures.8 cl

Control device of forming warping beams // 2525798
FIELD: textiles, paper.SUBSTANCE: invention relates to equipment of textile industry and can be used in the preparatory department of weaving production on warping machines. The control device of forming warping beams comprises an electric motor of the warping beam, an electric motor of the compacting shaft, connected to the inverter, the actual radius metre, the pressure sensor of the compacting shaft, two adders. According to the invention, the device comprises a sensor of warping beam rotation frequency, a sensor of rotation frequency of the compacting shaft, two division units, a multiplication unit, a radius setting unit of the compacting shaft, a setting unit of winding density of the warping beam. At that the outlets of the sensor of warping beams rotation frequency and the sensor of rotation frequency of the compacting shafts are connected to the respective inlets of the first division unit, which outlet is connected to the first input of the multiplication unit connected by the second inlet to the radius setting unit of the compacting shaft, and connected by the outlet to the first inlet of the first adder, which second inlet is connected to the outlet of the sensor of winding radius of the warping beam, and the outlet is connected to the first inlet of the second division unit, connected by the second inlet to the pressure sensor of the compacting shaft, and connected by the outlet to the first inlet of the second adder, which second inlet is connected to the outlet of the setting unit of winding density of the warping beam, and the outlet is connected through the inverter to the electric motor of the compacting shaft.EFFECT: improved accuracy of stabilisation of winding density and length of the wound base.1 dwg

ethod and device for thread production from multiple elementary fibres // 2518476
FIELD: process engineering.SUBSTANCE: invention relates to production of thread composed of multiple elementary fibres coated with fluid resin including solvent and cross-linked by at least one physical parameter and/or one chemical substance. Note here that said fibres are compacted to make a combined material composed thereof to surround them that features no gas inclusions and bonded by resin. Solvent is then removed from said combined material by drying. Note here that produced combined material represents a monofilament thread with resin not cross-linked which is, then, wound. Note also that all separate elementary fibres are retained in unilateral orientation at all said steps. Proposed method is characterised by heating of said elementary fibres prior to applying the resin coating. Note also that said elementary fibres are coated by dipping into resin bath. Invention relates also to device intended for implementation of above described method.EFFECT: higher strength, simplified calculation of mechanical stress, decrease consumption of resin.12 cl, 6 dwg

Fibrous composite and method of its production // 2518378
FIELD: process engineering.SUBSTANCE: invention relates to production of fibrous composite including the fibres and bonding resin. Said process comprises the steps that follow. a) Application of threads consisting of elementary multiple separate elementary fibres retained by resin cross-linked by at least one physical magnitude and/or one chemical substance. Note here that separate elementary fibres of the thread feature unilateral orientation. b) Said threads are bonded together by their outer side surfaces with the help of bridges. Note here that separate elementary fibres are shifted relative to each other and embedded completely in resin material. Note also that said threads feature no air inclusions. c) After combination of threads in compliance with step (b) resin is cross-linked by at least one physical magnitude and/or one chemical substance to make fibrous composite acquire its final strength. Note that said fibrous composite comprises braiding, knitting, setting, nonwoven material or fabric, preferably, with calico weave. It comprises the threads of substrate and/or weft that make the elementary composite of multiple separate elementary fibres and resin not cross-linked. Note also that said separate elementary fibres of said threads feature unilateral orientation while said bridges are made of resin not cross-linked.EFFECT: higher elasticity and fluid absorption capacity, hard matrix.4 cl, 7 dwg

Device to produce pneumatically twisted carbon fibre // 2512779
FIELD: machine building.SUBSTANCE: device to produce pneumatically twisted carbon fibre comprises a body with a shaft of air supply, at the bottom of which at the angle 45±10° there is a guide nozzle of carbon fibre supply, and at the end of the air shaft with the help of a yoke there is a corrugate sleeve fixed, the length of which exceeds its distance from the cut of the guide nozzle more than twice, the cut of which is made at the angle ±15° to the longitudinal axis of the shaft, besides, height of the guide nozzle inside the shaft makes 0.1-03 of the shaft diameter. On the guide nozzle there are feed rollers and a rotary knife.EFFECT: increased efficiency of a device for preparation of carbon fibre and intensity of its pneumatic twisting.4 dwg

ethod of manufacturing pneumo-entangled carbon fibre // 2506357
FIELD: textiles, paper.SUBSTANCE: invention relates to the preparatory phase of obtaining the charge on the basis of carbon fibre, as well as obtaining the carbon wool for manufacturing carbon parts and bearing members. The method of manufacturing pneumo-entangled carbon fibre comprises supplying of carbon fibre, its cutting and moving the segments of carbon fibre into the air stream. At that the carbon fibre is cut in the guide pipe, and then the resultant carbon fibre segments are fed into the air stream of the barrel at an angle of 45∈±10°. After that the cut carbon fibre is directed into the corrugated hose, where the turbulent air stream is created with the boundary layer exceeding the corrugation radius. The pneumo-entangling is performed in the corrugated hose which length is not less than two air barrel diameters, after that the pneumo-entangled carbon fibre is placed in the container.EFFECT: increased productivity of the method of cutting and pneumo-entangling of carbon fibre, increase in intensity and efficiency of pneumo-entangling process.4 dwg

ethod of producing high-molecular weight polyethylene fibres // 2502835
FIELD: chemistry.SUBSTANCE: method involves applying a force on a polyethylene strip in the direction of the thickness of the strip on the entire width of the strip. The strip has weight-average molecular weight of at least 500000 g/mol, the ratio Mw/Mn of at most 6 and unidirectional orientation parameter 200/110 of at least 3. The polyethylene fibre for the strip has Mw of at least 500000 g/mol, the ratio Mw/Mn of at most 6 and unidirectional orientation value 020 of at most 55°. The fibres are used in ballistic applications, ropes, cables, nets, textiles and protective articles.EFFECT: fibres have high breaking strength and high energy of rapture.15 cl, 2 tbl, 5 ex

ethod of parallel production of several slivers and device for implementation of this method // 2499853
FIELD: textiles, paper.SUBSTANCE: device for the simultaneous parallel production crimped slivers has an area of the inlet with the first separation device for simultaneous parallel and separate feeding of several slivers, a pair of conveying rollers for the simultaneous, parallel conveying and compacting the slivers in the compression zone, and the texturing channel for simultaneous parallel crimping to the slivers. According to the invention, the device additionally comprises a second separating device in the compression zone for separate conveying and compacting of several slivers, and in the texturing channel the third separating device is provided for separate crimping to the slivers. At that the first, second, and third separating devices are located so that the separate continuous direction of the slivers parallel from the inlet region through the compression zone to the texturing channel is possible.EFFECT: ability to produce simultaneously several crimped slivers separated to each other with continuous and symmetrical crimping characteristics throughout the cross section of the sliver, and in particular also production of cost effective crimped slivers of filter tow with a low total titer, avoiding the phenomenon of the edge exfoliation by traditional stretching and crimping machine.18 cl, 1 dwg

Device of control of formation of warping shafts // 2499758
FIELD: textiles, paper.SUBSTANCE: device of control of formation of warping shafts comprises an electric drive of the warping shaft, an electric drive of the compacting shaft, a speed sensor of the warping shaft. The device additionally comprises a measuring instrument of the length of wound base, a calculator of rotation angle of the warping shaft, the initialisation unit of winding radius, a setting unit of the density index of winding, a squaring device, a multiplier unit, a division unit, and two adders. At that the speed sensor of the warping shaft is connected with its output through the calculator of rotation angle of the warping shaft to the first input of the multiplier unit and to the input of the squaring device which is connected with its output to the first input of the division unit which is connected by its second input to the output of the first adder which first input is connected to the output of the multiplier unit and the second - to the output of the sensor of the length of wound base. At that the output of the division unit is connected to the first input of the second adder, which second input is connected to the output of the setting unit of the density index of winding and the output is connected to the input of the electric drive of the compacting shaft.EFFECT: increased accuracy of stabilisation of winding density and length of the wound base.1 cl, 1 dwg
Aramide cord thread // 2495970
FIELD: metallurgy.SUBSTANCE: aramide cord thread with breaking loaf of at least 1962 N features 58.8 tex 2×4×3 structure and consists of three strands with unequal number of throwings: first twist of 170-250 throwing/m, second twist of 140-190 throwing/m with SZS twist direction.EFFECT: higher breaking load and cyclic durability.1 tbl

ethod of feeding reinforcement fibres for process lines of continuous production of articles of polymer composites // 2494953
FIELD: transport.SUBSTANCE: invention relates to method of feeding reinforcing filler for polymer composite article production lines in drawing and winding and can be used in ship building, machine building, oil-and-gas industry and construction. In compliance with proposed method, reinforcing fibre Is passed from bin via guide orifice, Said bin is composed of two working and standby reels arranged one after another in guide area and connected by fibre ends. On reeling fibres from said reels and passing through end section of the guide, the standby reel end is passed through guide orifice. One fibre end is arranged inside working reel while another one is located outside of standby reel. Fibre is fed through guide orifice on working reel outer side. Note here that said reels are arranged at the bend to rotate in opposite directions.EFFECT: continuous fibre feed, decreased fibre damages.2 dwg

Device of control of forming warping shafts // 2494178
FIELD: textiles, paper.SUBSTANCE: device of control of forming warping shafts comprises an electric drive of the warping shaft, an electric drive of the compacting shaft, the unit of calculation of the winding radius, the speed sensor of the warping shaft, the pulse sensor of rotation speed of the compacting shaft, the pulse sensor of rotation speed of the of the warping shaft, the unit of determining the increments of the winding radius. At that, the pulse sensor of rotation speed of the of the warping shaft and the pulse sensor of rotation speed of the compacting shaft are connected with their outputs to the inputs of the unit of calculation of the winding radius which output is connected to the first input of the unit of determining the increments of the winding radius of the warping shaft, and which second input is connected to the output of the speed sensor of the warping shaft, and the output of the unit of determining the increments of the winding radius is connected to the input of the electric drive of the compacting shaft.EFFECT: increased accuracy of stabilisation of winding density and length of the wound base.1 cl, 1 dwg

Warping shaft control device // 2493088
FIELD: process engineering.SUBSTANCE: invention relates to textile industry and may be used at warping machines. Control device comprises warping shaft drive motor, pressure beam drive motor, warping shaft rpm transducer, divider unit, warping shaft rpm counter, winding warp preset thickness generation unit, relay unit and adder. Note here that outputs winding radius and warping shaft rpm transducer are connected to appropriate inputs of divider unit its output being connected to first inputs of adder and relay unit. Second input of the latter is connected via warping shaft rpm counter to warping shaft rpm transducer, its output being connected via winding warp preset thickness generation unit to second input of the adder connected to pressure beam drive motor.EFFECT: higher accuracy of warp density and length maintenance.1 dwg

Thermostatic material // 2493057
FIELD: transport.SUBSTANCE: invention relates to space materials science and optical hardware, particularly, to thermostatic materials intended for space structure passive thermal control systems. Thermostatic material comprises outer facing layer of nonwoven material with electrically conducting threads interlaced in lengthwise and crosswise directions. Substrate of polyamide film metalised on inner surface is introduced in thermostatic material. Outer facing layer interwoven electrically conducting threads produced by twisting metal 30-50 mcm-thick wire with polymer thread of linear density of 1.5-11 tex and interweaving with thread density of 6-12 g/cm2 as to warp and weft. Thermostatic layer based on polyimides or polyether imides, or polyethers, or polysulfone is arranged between substrate and facing layer.EFFECT: decreased weight of thermostatic material.1 dwg

ethod of shock wave treatment of fibrous raw material // 2489536
FIELD: textiles, paper.SUBSTANCE: method of shock-wave treatment of raw materials includes preliminary mechanical treatment containing raw material adhesive, placement of successive batches of raw material into the aquatic environment, carrying out a shock-wave treatment of raw material with electropulse exposure in a mixture of "water-raw material" for garnetting and separation of fibers of raw material, dehydration and carrying out the final mechanical treatment. During the shock-wave treatment of portion the energy of electric pulse exposure is increased. The electric pulse exposure on subsequent portion of materials is carried out in an aquatic environment with dielectric adhesive fractions from the previous portion. The energy increase of electric pulse exposure is agreed in time with the stages of garnetting and separation of fibers of the raw material.EFFECT: improvement of quality of garnetting the fabric and separation of fibers while simultaneous reduction of energy intensity of the treatment process, increase in its coefficient of efficiency and productivity of the process in production of a quality recycled fiber.3 cl, 1 dwg
Fishing lines with structure "core-shell" comprising short fibers // 2485227
FIELD: textiles, paper.SUBSTANCE: invention provides a fishing line comprising a composite thread consisting of a core part comprising a short fiber and a shell part comprising a filament yarn made of synthetic fibers, and the core part and the shell part are joined due to indumentum of short fibers, formed between the long fibers or braided with them, and the specific mass of the thread can be adjusted in the range of 1.0 or more, and a method of manufacturing the fishing line.EFFECT: tight structure, separation or delamination of the core part and the shell part is not allowed, ease of use and excellent durability, weather resistance and water resistance.23 cl

Unit and method of flattening harness and the flattening plant // 2473723
FIELD: textiles, paper.SUBSTANCE: unit of flattening the harness for the flattening plant is proposed, comprising a base fixed on the flattening plant on the harness path and having a lower surface and a substantially flat upper surface, the hole for connecting a vacuum pump made essentially in the middle of the lower surface of the base; the groove made in the upper surface of the base, extending substantially perpendicular to the direction of passage of the harness and coupling with the hole for connecting a vacuum pump; two plates having a ledge which shape matches the shape of the groove, and mounted on the upper surface of the base so that the ledge is placed in the groove, and at least one plate is made movable along the groove for adjusting the distance between the plates, which determines the width of the flattening the harness. In addition, the flattening plant is proposed which comprises such unit, and the method of flattening the harness in the said unit.EFFECT: invention enables to flatten evenly the harness of different typical sizes.12 cl, 7 dwg

ethod of straightening untwisted fibre and plant for its implementation // 2471900
FIELD: textiles, paper.SUBSTANCE: untwisted fibre is continuously moved with controlled tension over the opening of the air path, and it is exposed to the air flow formed by the air supply under pressure in the air duct opening to form a bend of untwisted fibre in the said opening, and the air flow is formed in such a way that its main central part is directed perpendicular to the plane of movement of the untwisted fibre, and the side parts of the air flow generated by the edges of the untwisted fibre along the axis of its movement, changing its direction relative to the main central part of the air flow, are deflected towards the sides from the axis of movement of the untwisted fibre. This method can be implemented at the plant for straightening the untwisted fibre, which comprises pads to form the air flow.EFFECT: method and plant for straightening the carbon yarn enable to distribute evenly the carbon yarn threads and to form a uniform in width tape of required width of high quality due to changing the direction of the intake air flow.4 cl, 10 dwg

Twisted low-extension yarn, method of its manufacturing and item from it // 2469131
FIELD: textile, paper.SUBSTANCE: yarn consists of a twisted combination of one or more polyolefin fibres and one or more low-extension reinforcing fibres. Used polyolefin fibres have tensile strength of approximately 7 g/denier or more and a module in extension of approximately 150 g/denier or more. Used low-extension reinforcing fibres are characterized with elongation by approximately 3.0% or less at the load making 50% of the maximum tensile strength of the fibre, during 200 hr at room temperature, defined by the testing method according to ASTM D6992. The method to make twisted low-extension yarn, including several stages. The first stage: production of one or more polyolefin fibres with tensile strength of approximately 7 g/denier or more and a module in extension of approximately 150 g/denier or more. The second stage: production of one or more low-extension reinforcing fibres that are characterised with elongation by approximately 3.0% or less at the load making 50% of the maximum tensile strength of the fibre, during 200 hr at room temperature, defined by the testing method according to ASTM D6992. The third stage: twisting of specified polyolefin fibres and low-extension reinforcing fibres together with multiplication factor of twisting of at least in approximately 0.5 twists of specified one or more low-extension reinforcing fibres by inch (by 2.5 cm) of the specified one or more polyolefin fibres.EFFECT: twisted low-extension yarn, an item from this yarn, and yarn made according to the proposed method have a lower trend to tension, higher strength properties and more resistance to loads under severe conditions.11 cl, 1 dwg
Bicomponent fibers, textile sheets and their use // 2465381
FIELD: textiles, paper.SUBSTANCE: bicomponent fibers contain aliphatic polyester or a mixture of aliphatic polyesters, which form the first component, and polyolefin or a mixture of polyolefins, which form the second component. Polyolefin contains auxiliary material improving its biodegradation. Textile sheets include these bicomponent fibers and are comparable by mechanical properties to textile sheets based on polyolefin, while they are decomposed more efficiently under the action of microorganisms than the textile sheets based on polyolefin.EFFECT: enhanced biodegradability, to textile sheets such as nonwoven materials comprising these fibers, which can be used in personal care products.16 cl, 3 tbl, 2 ex

ethod to straighten carbon yarn and plant for its realisation // 2462542
FIELD: machine building.SUBSTANCE: method to straighten a carbon yarn is realised in the following manner: a carbon yarn is impregnated with a finishing agent, straightened with an air flow, then the excessive finishing compound is squeezed out, and the straightened carbon yarn is dried. This method may be realised by a plant for straightening of a carbon yarn, which comprises the following serially arranged components: a winding unit, a pair of feed rollers, a unit of carbon yarn impregnation with a finishing agent, a unit to straighten a carbon yarn with an air flow, a pair of press rolls, a pair of receiving rolls, a drying unit, a device to wind a straightened yarn, and also a system to monitor and adjust tension of a treated yarn.EFFECT: proposed method and plant to straighten a carbon yarn make it possible to evenly spread carbon yarn threads and form an even tape of required width of higher quality due to stability of its condition in a finished form.7 cl, 1 ex, 5 dwg

Control device of formation of warping shafts // 2461672
FIELD: textiles, paper.SUBSTANCE: device control of formation of warping shafts includes electric drives of warping and sealing shafts, a measuring unit of the actual radius of the winding, a calculator of a theoretical winding radius, sensor of pressure of sealing shaft on the warping shaft mounted in the sealing shaft mechanism, an adder, exponent calculator of winding density and relay unit, and a calculator of a theoretical winding radius and measuring unit of the actual radius of the winding with their outputs are connected to inputs of the adder, which output is connected to the first input of the relay unit, its output is connected to the input of the electric drive of the sealing shaft, and the second input is connected to the output of exponent calculator of winding density, which two inputs are connected respectively with the release of the pressure sensor and the warping shaft.EFFECT: increased precision of stabilisation of the density of winding and length of wound base.1 dwg

Fancy expandable thread and method of its manufacture // 2460832
FIELD: textiles, paper.SUBSTANCE: fancy expandable thread contains a shaped blank, which consists of a ground polyurethane yarn of a linear density from 2.2 to 15.6 tex with a draught from 1.7 to 5, wrapping threads with the number of wraps from 250 to 800 rev/m, served with surge from 1.5 to 3.5, additional ground and locking threads with the number of wraps from 210 to 600 rev/m, which can be of natural or chemical origin, or of mixtures of different fiber composition of linear density from 5.6 to 40 tex, with the extensibility of the finished yarn is from 5 to 120%, the number of loops from 3 to 25 per 100 mm length of the thread.EFFECT: obtaining shaped expandable threads with loopy effect of high quality, with good processing power at an affordable price.2 cl, 1 dwg

Inhomogeneous sewing thread and method of its preparation // 2453641
FIELD: textiles, paper.SUBSTANCE: sewing thread contains at least two twisted composite strand yarn, consisting of a complex para-aramid yarn - Rusar with decomposition temperature above 500 °C, and a breaking elongation of 2.5-5.0% and the strength of 140-250 cN/tex, and polyoxadiazole complex yarn - Arselon with decomposition temperature above 300°C, with a breaking elongation of 5.0-10.0% and strength of 30-50 cN/tex, with a linear density 29.0-30.0 tex, and non-equilibrium of finished sewing threads is no more than 2 turns/m. The method of preparation of the claimed yarn includes forming at least two combined strand yarn, their doubling and twisting in a twisted thread.EFFECT: obtaining a high quality sewing thread, both on physical and mechanical properties and tailoring properties and for the reasonable price, without thermofixation and dissecting compositions.3 cl, 3 tbl, 2 dwg

ethod of making cord and cord // 2443810
FIELD: textile, paper.SUBSTANCE: method involves preparation of aramid fibers and subsequent braid of core. Preparation of fibers for weaving is accomplished by cabling and winding on the supply packages installed on the cord-braiding machine. For braiding, aramid fibers single or cabled in 2÷10 threads of linear density from 9.0 to 600 tex are used. As a core, single aramid fibers of linear density from 9.0 to 3600 tex are used, and carbon fibers single or cabled in two or more threads of linear density from 100 to 3700 tex. The number of weaving is set from 1.0 to 12.0 per 1 cm. The number of fibers for braiding is taken from 3 to 64 to obtain a cord of minimum diameter 1.0 mm.EFFECT: invention enables to increase the strength of the resulting cord while simultaneous simplifying the technology of its manufacturing.2 cl, 2 ex, 1 tbl, 1 dwg
Thermoadhesive double-component fibre and method of its production // 2440447
FIELD: textile, paper.SUBSTANCE: to form a double-component fibre with the speed of not higher than 1300 m/min, polyethylene terephthalate is used as a fibre-forming component, and a thermoadhesive component of resin - a crystalline thermoplastic resin with melting temperature that is at least 20°C lower than the melting temperature of the fibre-forming component. A non-drawn thread of the double-component fibre is drawn in cold condition 1.05-1.3 times, relaxed and thermally shrunk at the temperature that is 10°C higher that vitrification temperatures of both components. Fibre has relative elongation at rupture 130-600%, rupture strength at 100% tension - from 0.3 to 1.0 sN/dtex and shrinkage after treatment with dry heat at 120°C by less than - 1.0.EFFECT: fibre has higher bulking power, and material made from it - good drape effect.6 cl, 6 ex

Control device for formation warping shafts // 2439218
FIELD: textiles, paper.SUBSTANCE: control device for formation warping shafts includes electric motor of a warping shaft, an electric motor of a pressure beam connected to the transducer, an actual radius measuring device, a calculator of the theoretical radius of the warping shaft, a pressure sensor of the pressure beam, pressure setting unit, a relay unit, and two summation units, at that the outputs of the calculator of the theoretical radius and the outputs of the actual radius measuring device are connected to the inputs of the first summation unit, whose output is connected to the input of the pressure setting unit, which is connected with its output to one of inputs of the second summation unit, which second input is connected to the output of the pressure setting unit, and an output - with the input of the relay unit, connected with its output to the input of the transducer.EFFECT: improved accuracy to maintain the parameters of winding of the warping shaft.1 dwg

Device for division of carbon braid // 2437970
FIELD: machine building.SUBSTANCE: device consists of bath whereto there is supplied flow of liquid, of roll mills for supply of carbon braid into bath, and of rollers experiencing axial vibrations with ultra-sonic frequency from first vibrator. The device includes a unit of carbon braid with a channel of liquid flow containing surface active substance - SAS- and metal combs positioned downstream on a bottom of the channel. Also, the device is equipped with a unit for division of flattened combed carbon braid including a channel with a flow of liquid containing the SAS, and vertical metal plates arranged on the bottom of the channel. The unit for combing the carbon braid flattened in flow of liquid in the bath and the unit of division of the flattened and combed carbon braid are equipped with roll mills for supply of the carbon braid into the channel with liquid. At the bottom of the bath there is at least one additional orifice for supply of gas.EFFECT: maintaining mechanical indices of carbon braids at simultaneous increase of accuracy of carbon braids division.2 cl, 3 dwg

Yarn, fibre and thread for weaving without smoothing // 2435891
FIELD: chemistry.SUBSTANCE: invention relates to a smoothing composition consisting of one or two polyorganosiloxanes for a yarn, fibre or thread, which can be weaved using a method which does not include a smoothing or washing step, containing said composition on at least part of their surface. The invention also relates to a method of producing said yarn, fibre and thread. The invention also relates to a woven fabric, made from said yarn, fibre or thread, using a method which does not include a smoothing or washing step, i.e. dry weaving. Said yarn, fibre or thread and the obtained woven or knitted fabric are used for air bags.EFFECT: improved characteristics of the fabric, necessary when the fabric is used for air bags - resistance to attrition, abrasive wear, fire-resistance and thermal stability.19 cl, 1 tbl, 16 ex

Carbon bundle spreading apparatus // 2435877
FIELD: chemistry.SUBSTANCE: apparatus for spreading a carbon bundle has series-arranged coiling unit 1, a pair of feed rolls 2, a unit for controlling 3 and regulating tension in the processed bundle, a unit for spreading 4 the carbon bundle with an air stream, a pair of receiving rolls 5, as well as a unit for winding 6 the spread bundle. The unit for spreading 4 the carbon bundle with an air stream is in form of two supporting rolls 11, 12 and a nozzle 13 which is installed between and under the supporting rolls with inclination angle of 30°-70° to the displacement surface of the bundle, and is made with a flat slotted opening 14 with possibility of feeding compressed air through said opening. The slotted opening 14 of the nozzle 13 of the unit for spreading 4 the carbon bundle can be made with partitions 15. The nozzle can be fitted with possibility of regulating its inclination angle depending on the thickness of the bundle.EFFECT: high speed of the stream of compressed air results in efficient splitting of the carbon bundle into monofilaments and obtaining a belt of carbon fibres with lower surface density.3 cl, 6 dwg

Drive belt // 2429397
FIELD: machine building.SUBSTANCE: drive belt consists of cord of polyether working in tension. Cord is characterised with heat shrinkage not exceeding 1% at 100°C, and/or heat shrinkage not exceeding 1.5% at 150°C, and/or index of dimension stability not exceeding 6%. The belt possesses heat shrinkage not exceeding 1.5% after 24 hours at 100°C. Index of dimensions stability is calculated as sum of percent elongation at tensile load 4.5 g/i and relative heat shrinkage in air at 177°C.EFFECT: stability of dimensions, extremely low heat shrinkage.7 cl, 4 dwg
 
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