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Method and device for thread production from multiple elementary fibres 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. |
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Fibrous composite and method of its production 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. |
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Device to produce pneumatically twisted carbon fibre 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. |
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Method of manufacturing pneumo-entangled carbon fibre 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. |
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Method of producing high-molecular weight polyethylene fibres 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. |
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Method of parallel production of several slivers and device for implementation of this method 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. |
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Device of control of formation of warping shafts 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. |
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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. |
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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. |
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Device of control of forming warping shafts 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. |
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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. |
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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. |
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Method of shock wave treatment of fibrous raw material 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. |
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Fishing lines with structure "core-shell" comprising short fibers 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. |
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Unit and method of flattening harness and the flattening plant 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. |
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Method of straightening untwisted fibre and plant for its implementation 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. |
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Twisted low-extension yarn, method of its manufacturing and item from it 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. |
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Bicomponent fibers, textile sheets and their use 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. |
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Method to straighten carbon yarn and plant for its realisation 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. |
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Control device of formation of warping shafts 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. |
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Fancy expandable thread and method of its manufacture 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. |
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Inhomogeneous sewing thread and method of its preparation 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. |
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Method of making cord and cord 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. |
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Thermoadhesive double-component fibre and method of its production 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. |
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Control device for formation warping shafts 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. |
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Device for division of carbon braid 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. |
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Yarn, fibre and thread for weaving without smoothing 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. |
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Carbon bundle spreading apparatus 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. |
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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. |
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Chemical-resistant, dimensionally stable monofibre, production method and use Chemical-resistant and dimensionally stable monofibre has a core-cladding double-component structure in which the core is made from material with stable dimensions and the cladding is made from chemical-resistant material. The cladding is made from polytetrafluoroethylene (PTFE) and is a belt wound on the core and then sintered. |
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Method to fold monothreads and complex of monothreads made from them Method includes unwinding monothreads from a bobbin carrier at identical tension in process of unwinding, folding unwound monothreads with the help of multiple transporting rolls in untwisted condition and winding folded monothreads to produce a complex of monothreads. The complex of monothreads comprises multiple monothreads folded together in untwisted condition and having mean square deviation of weight per unit of length of monothreads complex in the range from 0.0001 to 0.01. |
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Device to heat and method to draw polyolefine fibres Device comprises the first set of rolls, multiple horizontal furnaces arranged on the same line in a butt joint, the second set of rolls adjacent to the specified opposite end of multiple furnaces. Rolls are adapted to provide desirable extent of polyolefine fibres drawing and to supply fibres through a continuous furnace. The device and the method ensure single-stage drawing in the heated medium with the help of preferably six, seven and nine horizontal furnaces. |
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Device to control formation of warping rolls Device to control formation of warping rolls comprises electric motors of a warping and a rolling rolls, connected to converters that feed them, a metre of actual radius of a warping roll and a calculator of its theoretical radius, a unit of current setting and a sensor of a warping roll motor current, a two-position relay, the first and second summators, besides, outlets of the metre and the calculator of radii via the first summator are connected to the inlet of the current setting unit, outlets of the current setting unit and the current sensor via the second summator are connected to the two-position relay, outlet of which is connected to the inlet of the rolling roll motor converter. |
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Method and device to processing yarn fibre Fibre yarn is made up of multiple strands of elementary fibres. First, prior to cutting into staple fibres, fibre yarn is expanded in, at least, one expansion zone. Note hare that fibre yarn is treated by fluid medium. Then, after expansion, fibre yarn is subjected to thermal treatment for fixation. Note here that amount of fluid medium contained in fibre yarn before thermal treatment is reduced by squeezing out. Note also that fibre yarn inside expansion zone is squeezed out over its width so that weight fraction of fluid medium uniformly over said width makes less than 10%. Invention proposed also the device to this end. |
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Method to produce combined thread based on short fibres and device for its realisation Method to produce a combined thread on the basis of short fibres includes feeding fibres into the area of the auxiliary thread movement, fixing fibres on this thread and feeding the produced combined thread into a winding area. Besides, a water slip is produced previously from short fibres, and short fibres are fed in a composition of a water slip jet into the movement and twisting area of at least two auxiliary threads. Prior to the combined thread winding, it is squeezed and dried. Also the device is proposed to produce a combined thread, which includes a zone of fibre feeding, a zone of spinning using an auxiliary thread and a zone of winding, besides, the fibre into the feeding zone arrives in the form of a water slip. Between the spinning zone and the winding zone there is additionally a zone of the combined thread drying. |
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Reinforced thread consists of core and two covers. Also, a complex high-module aramid thread of linear density from 6.3 tex is used as a core. Flux yarn tow of linear density at least 33.5 tex is used as the first cover. As the second cover there is used cotton yarn of linear density from 18.5 tex impregnated with fluoro-organic latex before spinning. Content of flux fibre in thread is as high as 57%, while content of cotton fibre in thread is at least 25%. Linear density of produced thread does not exceed 110 tex. |
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Method and device to manufacture staple fibre from twisted sliver Separate slivers are laid next to each other to form a processed width of sliver and are jointly processed inside staple device. Prior to processing for giving twist, sliver is reduced from width of processed sliver into narrower width of twisted sliver, and after giving twist it is cut into staple fibres. To provide for the possibility to carry out optimised stages of processing with high volume of yield, according to invention, separate fibres inside width of processed sliver are sent into several partial slivers with equivalent values of partial width or with different values of partial width, which are combined into fibrous sliver with width of twisted sliver in the range from 700 mm to 1200 mm. |
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Twisted reinforced thread comprises non-reinforced component in the form of polyester complex thread and reinforced yarn with core of polyester complex thread and braiding. Polyester complex thread of non-reinforced component has twist that makes 0.38-0.69 of twist of twisted reinforced thread. Braiding of reinforced yarn is formed with polyester staple fibres. |
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Combined filament for polymer wear resistant composite materials Combined filament is made out of polymer component and out of component in form of rod armature. Also, the filament contains a heat resistant fibre as a polymer component chosen from the group: poly-meta-phenylen-oxadiazol fibre or poly-para-phenylen-oxadiazol fibre, or modified co-polymer light resistant oxadiazol fibre, or poly-meta-phenylen-terephthalamide fibre, or poly-metaphenylen-isophthalamide fibre or their mixtures. The combined filament also contains the component made in form of a rod armature with number of coils 50-340 tw/m and corresponding to cotton threads or yarn with linear density 10-100 tex. The polymer component of a combined thread is made as a rod with linear density 6.3-300 tex. Notably, combined thread has linear density of elementary fibre 0.08-0.66 tex, of twist 0-350 twists/metre and number of filaments from 48 to 40000 at diametre of filament 1-28 mcm and ultimate tensile strength of 48 polymer filaments 0.3-3.2 GPa, coefficient of elasticity 120-146 GPa, permanent strain after rupture 3-4% and coefficient of variation for strength 4-8% at the following ratio of filament components, mmu (milli-mass unit) sh.: polymer component 10-90, cotton fibre - the rest to 100 wt.sh. |
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Bundles of fibres with a total denier of 10000 to 500000 dtex is obtained by binding thermoplastic, conjugate, continuous fibres, which have an individual fibre denier of 0.5 to 100 dtex/f and whose center of gravity of conjugate components varies between the conjugated components in the cross section of fibre. Thermoplastic, conjugate, continuous fibres composing a bundle of fibres have existing coils from 8 to 30 threads per 2.54 cm. Density of bundles of fibres ranges from 100 to 2000 dtex/mm2 and is determined according to dependence of the D1/(W1xL1), where D1 is a total denier, W1 is width of bundle of fibres and L1 is a thickness of bundle of fibres. The ratio of canvas density after stretching the bundle to the bundle density is equal to 0.10 or less. The method of producing fabrics comprises the step of pulling the said bundle of fibres with an extraction coefficient from 1.4 to 3.0. Canvas with a total denier from 10000 to 1000000 dtex contains thermoplastic, conjugate, continuous fibres aligned in one direction and have an individual filament denier of 0.5 to 100 dtex/f and whose center of gravity of conjugate components varies between the conjugated components in fibre cross-section. Thermoplastic, conjugate, continuous fibres have spiral circuits from 10 to 100 circuits per 2.54 cm. Density of canvas ranges from 5 to 80 dtex/mm2 and is determined from the dependence of D2 / (W2xL2), where D2 is total denier, W2 is a canvas width, and L2 is canvas thickness. Presence on the fibres of more than 100 spiral circuits per 2.54 cm at a canvas density from 10 to 100 dtex/mm2 is possible The item is made of canvas. In the product the canvas is combined with the help of a set of partial sections of thermal bonding with another canvas or coating without spiral circuits, or with other canvas or coating with less spiral circuits. Loop from which a different fabric or coating extrudes is formed between the partial areas of thermo-attachment. The product can contain many components with fibre length from 3 to 50 mm, thermally attached with the parts to canvas or covering that serves as the base. With the use of a part or a product the final product is received. |
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Method and apparatus for producing complex textured yarn In implementation of the proposed method a few single yarns are made by extruding, cooling and pulling. Every single yarn consists of a number of monofilament yarns having the form of single strands and which are exposed to twisting together to produce a complex string, at the same time before twisting exposing monofilament yarns composed of many single filaments yarns individually to entangling. And at least one isolated yarn consisting of many monofilament yarns before twisting is exposed to repeated entangling on several preliminary stages. Also the device for implementation the method is proposed. The device comprises a moulding device, a cooling device and an exhaust apparatus for producing several separate yarns consisting of a number of monofilament yarns. The twisting device is intended to combine separate yarns into complex thread. The device for a single entangling of separate yarns is located in front of the twisting device. And the device for entangling has several consecutively located forwards single yarns of nodes for multiple entangling of at least one of a single yarn. |
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Method includes thread impregnation with a collagen solution with antimicrobial substance and further drying. To impregnate the thread, a water nanosystem is used on the basis of collagen with nanodisperson of at least one bentonite powder, modified with cations Ag+ and/or Cu2+, with amount of these metals in the powder of 2.0-8.0 wt %, at the following ratio of components in nanosystem, wt %: collagen - 0.5-4.0, bentonite powder - 2-8.0, water - the rest. For impregnation, not more than 50 wt % of specified nanosystem is used per mass of dry thread. Dispersion of bentonite powder nanoparticles makes not more than 150 nm. A mixture of bentonite powder nanoparticles modified with ions Ag+ and Cu2+ with content of specified metals of 2-6 wt % in the mixture, at the ratio of powders of 1÷(0.3-0.5), accordingly. Deionised water is used to produce water nanosystem. |
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Heat resistant sewing thread and method of its manufacturing Heat resistant sewing thread contains at least two twisted reinforced threads and preparing composition. Each reinforced thread includes core and braiding. Core consists of one or two complex threads from heat resistant non-thermoplastic paraamide threads with decay temperature over 500°, with permanent strain after rupture 2.5-5.0% and strength of 150-245 gs/tex. Braiding is made of thermomelting and heat shrinkable polyester fibres with melt temperature of 240-260°, with zero strength temperature of 260-280°, with heat shrinkage prior to fibre melt 38-44%, fibre length of 35-40 mm, with linear density of 0.12-0.17 tex. Share of coverage with polyester fibres equals 33.7-51.6 wt % of finished thread. Method for production of heat resistant sewing thread includes formation of at least two reinforced threads, their cabling, twisting into twisted thread, thermal fixation, application of preparing composition. At the same time, during formation of reinforced thread, polyester fibres are thinned with drawing multiple to 24-32 into broken thread of linear density of 6.4-13.4 tex, in zone of twisting triangle, core is pulled with force that exceeds force of broken thread drawing 2.2 times. |
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Heat resistant, fire resistant and antistatic yarn for woven and jersey articles Yarn for woven and jersey articles is characterized by the following composition of components, wt %: - heat resistant polyamide imide or polymethaaramide fibre 45-55; - heat resistant polyparaaramide fibre 2-4; - antistatic fibre 1-2; - fire resistant viscose fibre - balance. Polyamide imide fibre is represented by Kermel fibre, polymethaaramide fibre - by Nomex, Conex or Newstar, polyparaaramide fibre - by Kevlar or Tvaron, antistatic fibre - by Bekinox, fire resistant viscose fibre - by Lenzing or Avylon. |
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Decorative thread from foil for modelling and creative activities and method of its fabrication Invention relates to modeling and creative activities and pertains to decorative thread made from foil to be used in modeling and creative activities. Decorative thread represents large-size thread or thread sections made from foil. Set of decorative elements can be made up of not only finished thread sections, but of sections or foil sheets for them to be transformed further on into decorative elements to be used in modeling and creative activities. Foil thickness varies from 0.001 to 0.05 mm; finished decorative thread diametre varies from 0.1 to 20 mm, finished thread length varies from several centimetres to several tens and hundreds metres. Decorative elements can be provided with strengthening module arranged in its cavity. |
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Produced technical aramid fibre of linear density 58.8 tex has structure 58.8×2×3×3 consisting of three strands with value of twisting: the first and the second twists - 170-210 twisting/metre, the third twist - 80-120 twisting/metre, and direction of twists SZS. |
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Invention relates to technology for production of aramid cord thread, and may be used in rubber and tyre industry. Cord thread is produced by twisting of three strands into single complex thread, and strands are represented by twisted thread from heterocyclic paraamid 58.8 tex x 2, having identical 1 11 twists from 130 to 250 tw/metre and direction of twists SSSZ. Additionally, complex thread may contain one strand of polyamide thread of linear density 93.5 tex (HK), twisted with direction of twists (SSS+HK)Z. Cord thread is impregnated with latex-resorcin-formaldehyde composition in amount of 2-15%. |
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Yarn from collagen fibre of animal skin and method of its manufacturing Yarn from collagen fibre of animal skin contains 1÷100% of collagen fibre by weight, which is made of loosened collagen fibre produced by release of fibre in at least one type of finished skin or hides of at least one type of animals, and 0÷99% of textile fibre by weight. Textile fibre and collagen fibre are twisted together. Collagen fibre is produced from at least one type of animals, including cattle, sheep, horses, dogs, pigs, deer, rabbits, crocodiles and snakes. Textile fibre represents at least one type of natural or synthetic fibres, including cotton, hemp, wool, silk, terylene, acryl fibre, nylon, polyamide and viscose staple. Method for manufacturing of yarn from collagen fibre of animal skin includes selection of tanned leather materials, release of fibres, sorting, mixing, combing, drawing and twisting. Loosener is used to release fibre, and box-like separator with air flow is used for fibre sorting. In version of method realisation the following operations are carried out - selected of non-tanned leather materials, liming, washing with water, de-ashing, tanning and softening, dehydration, release of fibres, sorting, mixing, combing, drawing and twisting. Acid protease is used for de-ashing, and pH value of de-ashing solution is controlled within the limits from 3 to 6. Box-like separator with air flow is used for sorting of fibre. In other version of method realisation raw materials are selected from materials of tanned leather and at least one of synthetic textile fibres or natural textile fibres, release of collagen fibres for production of loosened collagen fibres with single thread, sorting of loosened collagen fibres, mixing of collagen fibres and textile fibres with further combing of mixed fibres for production of continuous fibre, drawing of fibre for improved homogeneity of fibres and twisting of fibres with production of yarn. Box-like separator with air flow is used for sorting of fibre. |
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Method of heat treatment of anide cord Invention relates to a technique of production of high-strength anide cords used to manufacture tyres and rubber-cord casings in tyre and rubber industry. The production method involves treatment of the anide cord in the hot stretching area at a temperature of 195±5°C and for 31-39 sec with tension of 60-75 kN/cloth. This is followed by thermal stabilisation at 200-210°C with tension of 21-24 kN/cloth for 31-39 sec. This is followed by cooling of the cord cloth to the ambient temperature with tension of 21-24 kN/cloth for 31-39 sec. |
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Invention relates to purification of fluids from solid particles, particularly to porous volumetric-capillary filters and pertains to filtration element. Filtration element represents a coil with perforated central cartridge accommodating filtration curtain. The latter represents a multi-layer abraded yarn wind. Aforesaid wind is made using textured multi-filament synthetic thread, primarily, with loop poil. |
Another patent 2513155.