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
FIELD: machine building.SUBSTANCE: invention relates to composite material reinforcing element (10) with π-shaped cross-section production method; the method includes performing of threads layers first set by means of three-dimensional weaving, connected to each other to form fibrous workpiece (102) first part intended for pre-molded base workpiece formation, performing threads layers second set by means of three-dimensional weaving, connected to each other to form fibrous workpiece (104) second part, intended for stiffeners pre-molded workpiece formation; wherein second set threads are connected by means of weaving with first set threads on first central disengagement strip (106), expanding towards fibrous workpiece first part side edges (102a) at level of zone (108, 110), corresponding to base step; wherein fibrous workpiece two parts forming to produce fibrous pre-molded workpiece (100) in form of single part contains part, forming base pre-molded workpiece, and part forming stiffener pre-molded workpiece, and resin arrangement in fibrous pre-molded workpiece by means of female die.EFFECT: invention also relates to reinforcing element with π-shaped cross-section made using this method.13 cl, 7 dwg
FIELD: textile.SUBSTANCE: fibrous structure woven as a single part by 3D braiding, wherein the first weft threads are tied together layers of warp threads at first section (12) of fibrous structure (10) adjacent to empty area (16), as well as layers of warp threads of second section (14) of fibrous structure behind the empty area, and the second weft threads tie together layers of warp threads at second section (14) of the fibrous structure adjacent to the empty area, as well as layers of warp threads of first section (12) of the fibrous structure outside the empty area, so that trajectories of the first and the second weft threads intersect in at least one transition area (18) extending inside the fibrous structure from the end of the empty area, herewith the transition area extends in the weft direction for a distance larger than step (p) between adjacent columns of warp threads.EFFECT: new material.18 cl, 19 dwg
FIELD: turbo-machines.SUBSTANCE: invention relates to fibrous pre-molded workpiece performing method for making of turbomachine blade made from composite material; wherein method includes performing by three-dimensional weaving of fibrous stock (100) in form of single part with layers of longitudinal threads (c1-c24), interconnected by weft threads (t1-t24) layers of threads, and fibrous workpiece forming to produce fibrous pre-molded workpiece in form of single part, containing part, forming feather pre-molded workpiece, and, at least, one part forming pre-molded platform workpiece. In process of weaving threads (c5-c7) of longitudinal fibers first group come out of fibrous workpiece on side of workpiece one of lateral sides (110a) to form part (120), corresponding to platform pre-molded workpiece, and threads (c3 and c4) of longitudinal threads second group are introduced into fibrous workpiece with mutual intersection between first group threads and second group threads.EFFECT: invention also relates to pre-molded workpiece, produced by this method.15 cl, 4 dwg
FIELD: textile, paper.SUBSTANCE: filling method of tail ends of a filling weft into the shed (1.1, 1.2) of the loom is proposed. With the help of the means (19) of selection of a filling weft, the filling wefts, which are input into the shed with the help of means feeding weft and tacked down to the fabric edge (13) with the help of the reed device (7, 7.1, 10), are selected (3). With the help of weft holding means, the tacked filling weft (3) is held in the area of a fabric edge in a certain position, whereupon, after the input of the filling weft, the replacement of the shed (4) is performed with the help of shed-forming means. Filling wefts are shifted with the help of weft holding means, so they come to a position, in which they are cut with the help of the weft scissors. Whereupon, the corresponding tail end of the filling weft, which is then captured by the filling unit and filled into the shed, is formed. Between two subsequent processes of input of the first and second filling weft, the following processes take place: additional tacking of a reed with the help of the reed device takes place. However, whereupon, the control of the means of selection of the filling weft is performed so that the second filling weft is not input and not tacked to the fabric edge, and the tail end of the first one is not filled into the shed, and the fancy thread passing towards the base is shifted in the loom towards the weft for the creation of additional filling effects.EFFECT: improvement of strength performance.2 dwg
FIELD: textile and paper.SUBSTANCE: invention can be used on looms for generation of three-dimensional tissues, including profile and laminated frame tissues. Technical result is achieved by using combined weave based on fabric regular structures, including multilayer, and laminated frame fabric with possibility to change trajectory laying weft in vertical and horizontal plane. Method is realised by enabling movement rapiers by height, as well as possibility of movement on different distance across width of machine.EFFECT: higher efficiency and expanded range of multilayer tissues.2 cl, 1 dwg
FIELD: textile.SUBSTANCE: invention relates to textile industry and can be used on weaving machines with three-dimensional tissues multi-shell threading system, including laminated framed. Technical result is achieved due to maintenance of warp threads tension level in specified range due to creation of conditions of warp threads tension continuous control and its maintenance at constant level due to direct and reverse rotation of weaving beam. Method is implemented so, that at increase of threading tension level warp threads are unwound from weaving beam and supplied into forming zone, and at decrease of threading tension level, wound on it again due to weaving beam turn in opposite direction.EFFECT: technical task of disclosed invention consists in maintaining of threading tension level during entire cycle of three-dimensional textile article repetition forming.1 cl, 1 dwg
FIELD: textile.SUBSTANCE: invention allows to expand range of combined shadow weaves fabrics with effect of longitudinal volume zigzags by changing ascent angle of longitudinal zigzag pattern ascending or descending teeth line. Method to produce longitudinal zigzag shadow weaves fabrics consists in formation of teeth on fabric surface, located at ascending or descending line, formed by inclined dimensional light strips, varying their width and direction across width of fabric, in selection of basic main class weaving, in selection of one of threads systems as active, formation of initial shadow weaving along threads passive system with single over-lappings reinforcement along weft base; in selection of number of base threads Kb to break by base, formation of first tooth first and second fragments and tooth in general with subsequent formation of second tooth, wherein rapport is determined by longitudinal zigzag shadow weaving weft Rw using mathematical expressions: at base threads active system: - at odd rapport Rb of basic weave Rw=2Rb[Rb(Rb-1)-1], - at even rapport RbRw=Rb[Rb(Rb-1)-1]; at weft threads active system and any rapport Rb:Rw=2[Rb(Rb-1)-1], for changing of shadow zigzag weaving teeth line ascent or descent angle on fabric surface adopting peaks shift value ±Sp, varying multiple to base threads active system basic weave repeat Rb in range of Rb≤|Sp|≤Rw-Rb, at weft threads active system in weft threads range of Rb≤|Sp|≤Rw-2(Rb-1), then adopting number of base threads Kb before fracture by base in each tooth, considering that on one side, number of threads Kb≥Sp+ Rb+2, and on other side, with weft threads active system Kb≥2[Rb(Rb-1)-1], with weft threads active system and odd rapport Rb of basic weave number of threads Kb≥2Rb[Rb(Rb-1)-1], and with base threads even rapport Rb Kb≥Rb[Rb(Rb-1)-1]; determining tooth rapport Rt, number nt of rapport teeth by base and rapport by base Rb of longitudinal zigzag shadow weaving using mathematical expressions: Rt=2Kb-Sp-2; nt=LCM(Rw, Sp)/Sp (LCM is least common multiple); Rb=Rtnt; after that, on initial shadow weaving base forming inclined light strips in first tooth first and second segments and tooth in general of longitudinal zigzag shadow weaving considering obtained Kb and Rw of threads; formation of second and subsequent teeth is performed taking into account obtained peaks shift value ±Sp.EFFECT: expansion of fabrics range.1 cl, 4 dwg
FIELD: textile.SUBSTANCE: fibrous structure (100) is produced as a single piece by means of multilayer weaving using a method involving: weaving warp threads of at least one first group (110) of layers of warp threads with weft threads of which at least some (T1, T2) are woven with excess length so that weft thread end parts extend beyond weaving zone, where weft thread end parts are turned in order to weave them with warp threads by reinserting them into layers of warp threads, and forming a hollow part, in particular a tubular part, by folding first woven group (110) of layers of warp threads back on itself and pulling ends of reinserted weft threads, so that a fibrous preform for a component comprising a hollow part can be obtained as a single piece.EFFECT: obtaining material.12 cl, 38 dwg
FIELD: textile.SUBSTANCE: invention relates to jacquard type loom (100) for making a fabric by weaving plural warp yarns (201) with plural weft yarns (202). Fabric includes a determined number of columns of warp yarns per unit length and a determined number of layers of weft yarns. Loom includes comber board (111) including plural holes (1110) passing a corresponding number of control cords, each control cord including heddle eye (114) through which warp yarn (201) passes. Holes (1110) in comber board (111) are distributed in a determined number of columns (1111) extending parallel to warp yarn (201) direction and a determined number of rows (1112) per column extending in a direction perpendicular to warp yarn direction. Comber board (111) includes a number of columns (1111) of holes (1110) per unit length smaller than number of warp columns in same unit length in fabric, and a number of rows (1112) of holes (1110) greater than number of warp layers in fabric.EFFECT: creation of fabric with weave.6 cl, 9 dwg, 2 tbl
FIELD: textile and paper.SUBSTANCE: proposed optoelectronic device relates to instrument making for textile and light industry and can be used for determining parameters of threads slippage in production of textile materials with a different fibrous composition and in their processing. Optoelectronic device for estimating parameters of threads slippage of textile materials comprises clamps of an analyzed sample, devices for its loading in the form of a gear motor with a drive, relocation devices and devices for expansion of the sample threads in the form of a rack with a set of movable needles, arranged on a movable carriage, devices for measuring a displacement value threads, comprising optically active elements and a web-camera connected to a processor, as well as devices for measuring a loading value in the form of a tensometric measuring diaphragm-type system associated with the processor. According to the invention, the device comprises a noddle of adjustment of needles position in interthreads space, equipped with an optical system for visual scanning in micrometre range of needles coordinates change during adjustment.EFFECT: high accuracy of estimating parameters of threads slippage of textile fibrous materials by eliminating possible penetration needles into threads structure when taking measurements.1 cl, 2 dwg
FIELD: textile.SUBSTANCE: invention relates to production of 3D woven frame meshes of a certain profile consisting of longitudinal warp threads and transverse weft threads. Higher lateral rigidity of the mesh is ensured by that the mesh comprises sections where the warp threads are woven with the weft threads and sections where the warp threads overlap the weft threads without forming weaves. One repetition comprises ten warp threads and ten weft threads. In one repetition by the weft overlappings and weaves of the weft threads from the first to the fourth are symmetrical to overlappings and weaves of the weft threads from the sixth to the ninth with the warp threads. Each warp thread in a repetition has locations above the weft threads within the range from 20 to 90 % of total amount of the weft threads in the repetition and has a number of locations under the weft thread within the range from 80 to 10 % of total amount of the weft threads in the repetition.EFFECT: higher lateral rigidity.1 cl, 12 dwg, 1 tbl
FIELD: safety devices; textile.SUBSTANCE: seat-belt strap (1) for a seat-belt system in a motor vehicle has woven fabric (2) consisting of warp threads (3) and weft threads (4). Seat-belt strap (1) is woven alternately with a 1/2 twill weave and a 2/1 twill weave across at least part of its width.EFFECT: seat-belt webbing is proposed.23 cl, 8 dwg
FIELD: textile.SUBSTANCE: invention relates to design of special types of fabric and may be used in production of clothes and accessories for extreme conditions characterized by low values of ambient temperature. Fabric with electromagnetic heating is a cloth made by weaving of threads and comprises the main nonconductive threads having the first direction, and threads with electromagnetic heating having the second direction perpendicular to the first one, According to the invention heating threads are made in the form of electroconductive non-magnetic tubes, inside which there are magnetized elastic thread from hard-magnetic material, a gap between them is filled with elastic non-magnetic material or air. Fabric improves operational and technological quality of fabric allows cutting by arbitrary shape and area, provides even heating temperature. Fabric provides additional heat protection from overcooling users and equipment, available for a long time under low temperature, and may be used in production of sport tourist and military items.EFFECT: technical effect consists in independent operation of cloth with electromagnetic heating and improved operational and technological properties.1 cl, 2 dwg
FIELD: technological processes.SUBSTANCE: group of inventions relates to reinforced blank containing reinforced by fiber junction for use in reinforced by fiber composite structures (versions), and to a method of fabricating reinforced by fiber composite structure. Billet with elements of woven material, extending radially from the common point of connection contains at least one reinforcing fibre, twisted at least between two elements and passing through the common point of connection. Method of assembling structures billets uses reinforced blank to provide structure with reinforced points of connection.EFFECT: production of structures type with reinforced points of connection with high strength of the obtained structures.12 cl, 19 dwg
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
FIELD: roads.SUBSTANCE: invention relates to production of 3D woven frame meshes, which can be used as temporary road rolled out coating, as shock-absorbing coating of pipeline for protection against impact loads and reinforcing base for composite materials. Higher longitudinal flexibility of mesh is ensured by fact that it contains sections of warp threads that are woven with weft threads, and sections of warp threads overlap weft threads without formation of weaves. One rapport of threads of base contains 10 threads, one rapport of threads of woof contains 32 threads. Each thread base in rapport has 56 % locations of above weft threads and 44 % locations under weft threads. Alternating sections with small, with sections without weaves warp threads with weft threads forms twill weave 2/1 on four sections for each warp threads in the ornament on basis of except sixth, and on two sections for sixth warp threads.EFFECT: sections of one thread are shifted relative to sections of adjacent threads.1 cl, 12 dwg
FIELD: technological processes.
SUBSTANCE: invention relates to press equipment for production of laminate. Press pad comprises a woven fabric of heat resistant strands. At least a proportion of weft (14) comprises core (12) made up of a bundle of strands (11) within sheath (9) of an elastomeric material. At least a proportion of warp (15) comprises metal strands. Strands (11) forming bundle are close- packed prior to extrusion of sheath. Transverse cross-sectional profile of sheath (9) is a regular geometric profile that is other than a circular profile prior to weaving of fabric. Preferably, transverse cross-sectional profile of sheath (9) is splined profile (13) or a regular polygonal profile that is composed of straight lines or arcs.
EFFECT: higher elasticity of pads without considerable reduction of heat conductivity and higher wear resistance.
15 cl, 6 dwg, 2 tbl
FIELD: treatment plants.
SUBSTANCE: present invention relates to production of filtration materials for filtrating industrial air and cleaning process gases and allows extension of performance properties and ensures fine purification when filtrating air and gaseous media. As per I embodiment the twill-woven filtrating fabric comprises aramid threads with linear density of 58.8-110 tex on its base and weft on the basis of a polymer containing benzimidazole groups and consisting of filaments with the diameter of 10-30 µm. Weft additionally contains yarn of single or double fold based on a combination of aromatic polyamides. At per II embodiment, the filtering fabric on its weft additionally contains yarn of double fold based on aromatic oxadiazole.
EFFECT: air filtering.
6 cl, 1 tbl
SUBSTANCE: warp band stop motion (1) for looms, in particular circular looms, comprises a sensor piece that has a passage for a warp band. Sensor piece can be moved back and forth between a preloaded rest position and a working position, into which sensor piece can be moved by a tensile stress of warp band passing through sensor piece. Rest position detector detects presence of sensor piece in rest position or approach of sensor piece toward rest position. If rest position of sensor piece or approach of sensor piece toward rest position is detected, detector emits a rest position signal.
EFFECT: warp band clamping device is provided, between which device and sensor piece warp band can be clamped when sensor piece moves into rest position thereof.
19 cl, 10 dwg
FIELD: technological processes.SUBSTANCE: invention relates to device for intermediate storage of two ribbon-like filling materials for weaving machine. Device includes two accumulation tanks, in each of which U-shaped loop of weft material can be formed. There are facilities for application of stretching forces on weft material inside appropriate storage containers. Inner space of both accumulation tanks face each other in each case with one of both narrow sides. Diverting elements on storage container in each case are arranged so that corresponding weft material can be fed into inner space in area, which is located closer to both narrow sides of said inner space, which is not facing inner space in each case of other storage container.EFFECT: device reduces number of weft material turns to weaving machine.8 cl, 5 dwg
FIELD: chemistry.SUBSTANCE: invention relates to billets for use in composite materials reinforced by fiber, composite materials reinforced by fiber, as well as methods of their production. One method involves weaving of multiple warp threads with single woof thread so that forms tubular woven structure with central axis. Blank can be made using continuous or tubular weaving and can have two or more diameters along its length. Billet can contain one or more fabric layers formed on or attached to one or both surfaces of tubular woven structure.EFFECT: final structure can be part of window frame, wheel rim or combustion chamber in jet engine.30 cl, 10 dwg
FIELD: heating; textile and paper.SUBSTANCE: according to explanatory version of the invention textile product includes external coating and inner coating. Textile product includes at least one heating strip located on inner or outer coating, which wire part is electrically connected to end of heating pad, and first adhesive tape, wrapping heating pad end whereto conducting part is connected.EFFECT: disclosed is textile product with heating pad, which can be made with possibility of control and washing, and method of textile product making.13 cl, 11 dwg
FIELD: textiles, paper.SUBSTANCE: biaxyisotropic energy absorbing technical fabrics of threshold operation is proposed, formed by weaving of warp and weft yarns, comprising twisted warp and weft yarns equal in raw material components and linear density, with the same rapport of weaving in warp and weft. In it the warp and weft are made of two-component composite twisted yarns. The composite components of yarns are different from each other in the index value of breaking elongation by the amount of at least ±8%. The mass fraction of the component with the least index of breaking elongation is 25÷50% of the total weight of the combined yarn in general. Linear filling of the fabric in warp and weft are equal and defined by the equation: Z0(w) = [100R0(w)npl./(R0(w)+1.4641)]±10%, where: Z0(w) is the linear filling of fabric in warp (and weft),%; R0(w) is the rapport of the fabric weaving in warp (and weft); npl is the fabric ply rating. The proposed fabric may be used as reinforcing fabric carcass of composites based on elastomeric materials preferably for the manufacturing of "soft" fuel tanks of ground vehicles and aircrafts.EFFECT: creation of energy absorbing fabric having a greater uniformity of rupture in it of energy-absorbing yarns.1 dwg, 1 tbl
FIELD: metallurgy.SUBSTANCE: invention relates to a method (200) for production of a fibrous metal structure (100) by weaving with metal weft yarns and metal warp yarns, characterised in that it includes a step comprising weaving of fibrous structure (100) by means of successive weaving of metal clasps (301') that are used as weft yarns.EFFECT: for purpose of weaving, each of arms (302, 303) of each of metal clasps (301') is introduced into at least one shed, each shed being formed by two warp yarns.9 cl, 8 dwg
FIELD: textile.SUBSTANCE: invention relates to textile industry and can be used on looms for generation of tissues of various range, including stratified frame tissues. Technical result is achieved due to that speed of weft thread to meeting with trimming tissue is reduced by a value comparable with speed of movement of weft thread together with trimming tissue in moment when distance from reed to edging tissue is not less than value of tack strip, reed acts on weft thread at least two times, second and subsequent exposure is performed with retention of reed in extreme front position reed, stroke, number of actions and speed of rocking and shedding mechanisms of machine are adjusted automatically for each weft weaving repeat propulsion by adjustment of servo drive.EFFECT: engineering task of proposed invention is reduction of dynamic loads on warp threads at surf, providing required density tissue densities, reduced tension duck and shrinkage value of fabric along width.1 cl, 1 dwg
FIELD: textile and paper.SUBSTANCE: fabric (10) has reinforcement system (11) of reinforcing threads (13) of base and reinforcing threads (14) of woof, which without interweaving are laid on each other in two different reinforcing layers (16, 17) and, so to say, are freely lying structure. Reinforcing threads (13), (14) are formed by reinforcing yarn (15). From binding yarn (30) with low titre than that of reinforcing yarn (15), is formed binding system (12) of threads (20) of base and threads (21) of weft. Weaving of fabric is performed exclusively in binding system (12). Reinforcing system (11) is enclosed between binding threads (20) of base, on one side, and binding threads (21) of weft, on other side, and supported thereby. In binding system (12) there are areas (22) of weaving. In each point (22) of weaving binding thread (20) of base is arranged and retained between standard threads (25) of base and crossing threads (24) of base of one pair (23) of binding threads (20) of base. Between two adjacent points (22) of weaving of one pair (23) of warp threads standard threads (25) of base and crossing threads (24) of base have at least one point (26) of crossing. All threads (13), (20) of base pass in direction (K) of warp threads in fact, parallel to each other. All threads (14), (21) of weft pass in direction (S) of weft essentially parallel to each other and across direction (K) of warp threads.EFFECT: disclosed is fabric (10) for use in composite materials.15 cl, 9 dwg
FIELD: textile and paper.SUBSTANCE: method of producing tissues of waffle weaves with diamond-shaped relief element consists in formation of initial diamond weaving, main diagonals of which are formed with single warp or weft overlaps of base tweels of main class, subsequent filling of rhomb in vertical decks like system of threads with deviation from main diagonals one covering to obtain two rhomb shaped cells, location in their tops of additional elements with subsequent framing of additional elements with single covers of opposite sign. At that, additional elements are presented in form of rhombs, formed by odd number of main or weft overlays of variable length varying from 1 to Nd with pitch equal to two beams, wherein number of overlays Nd, equal to their maximum length, from 3 to Rb+2 overlays, where Rb is rapport of base tweel; specifying location of additional elements: placed at vertices of main source of rhombs waffle weave or along base or along weft, or simultaneously on both threads systems; in first two cases to increase prominence of tissue in remaining tops rhombs additional sections of plain weave width from 5 to Rb+2 threads; if repeated weaving of additional elements both from main and weft overlay their arranged in series along base with double weaving repeat, in series along weft weaving repeat double, as well as along both systems of threads in staggered order or in series with doubled rapports of weaving and by base and weft.EFFECT: invention extends range of tissues by forming at vertices of rhombs waffle weaves of additional elements of rhomboid form.1 cl, 7 dwg
FIELD: textile industry.SUBSTANCE: invention relates to textile substrate (1) comprising warp and weft, wherein substrate comprises plurality of warp yarns (K26-K34), and weft comprises plurality of weft yarns (S29-S30), wherein each warp yarn overlaps with plurality of weft yarns and each weft thread crosses plurality of warp yarns such that warp and weft together form layer having a first surface (2-1) and second surface (2-2), opposite first surface. At least one of weft yarns (S29) consists of first yarn (15) and at least one weft thread (S30) consists of second yarn (16). First yarn (15) is a three-component yarn which comprises wool fibres and regenerated cellulose fibres and at least one third fibre in form of continuous fibres made from synthetic material. Second yarn (16) comprises a fibre made of regenerated cellulose, wherein weight fraction of regenerated cellulose fibre contained in second yarn on total weight of second yarn greater mass fraction of second regenerated cellulose fibres contained in first yarn, of total weight of first yarn. In case at least one weft thread (S29), consisting of first yarns (15), total length of all longitudinal portions, which extend along first surface (2-1) is greater than total length of all longitudinal portions which extend along second surface (2-2). In case at least one weft thread (S30), consisting of second yarn (16), total length of all longitudinal portions, which extend along first surface (2-1) is less than total length of all longitudinal portions which extend along second surface (2-2).EFFECT: warp and weft together form layer having first surface (2-1) and second surface (2-2), opposite first surface.34 cl, 13 dwg
FIELD: textiles, paper.SUBSTANCE: reinforcing fibrous structure (100) for a part of a composite material is integrally woven by the multi-layer weaving between the plurality of layers of weft yarns (102) and a plurality of layers of warp yarns (101) located between two adjacent surfaces of the said structure. The fibrous structure (100) comprises at least one arcuate section (120) extending along one of the surfaces of the fibrous structure (100), at that the arcuate section (120) comprises at least some of the warp yarns (101) continuous with at least two adjacent layers of warp yarns contained on one of the surfaces of the structure (100). The warp yarns of the arcuate section (120) have a length greater than that of the warp yarns of at least two underlying layers of warp yarns of the structure (100). In addition, the warp yarns of the arcuate section (120) are not interconnected with the other warp yarns of the fibrous structure (100).EFFECT: strengthening of the structure.11 cl, 28 dwg
FIELD: chemistry.SUBSTANCE: fibre is obtained from a polymer containing imidazole groups. The fibre additionally contains: i) halide anions 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 %, based on the weight of the fibre; and iii) an alkali metal ion, wherein the alkali metal ion is present in the fibre in an amount in the range of 0.05 to 2 wt %, based on the weight of the fibre.EFFECT: producing the fibre having improved tensile strength.23 cl, 4 dwg, 8 tbl, 6 ex
FIELD: textiles, paper.SUBSTANCE: feeding device of warp threads of a weaving machine for multi-layer fabrics comprises at least two warp beams mounted on the warp beam rack with a drive. For each warp beam in the course of feeding the warp threads the warp thread tension means, the warp thread tension sensor, and a compensator are mounted. The warp beams are arranged one above the other on an arc which is concave in the direction of feeding the warp threads. The weaving machine for multi-layer fabrics comprises the above feeding device of warp threads to the zone of fabric-formation, a shedding unit, a unit of laying the weft thread, a unit of beating the weft thread, and the unit of commodity mechanism.EFFECT: providing the feeding of warp threads from the warp beams with equal tension, and reduction of production area occupied by one weaving machine.6 cl, 2 dwg
FIELD: textile, paper.SUBSTANCE: flexibility of the lattice, its shape stability and adhesion to the interfaced surfaces and materials are improved due to that one rapport of threads of the base contains 10 threads, one rapport of threads of the weft contains 26 threads. Each thread of the base in rapport has from 19% up to 65% of intersections above weft threads and respectively from 81% to 35% of weft intersections. Each thread contains sections in which it overlaps weft threads without formation of interlacing, these sections alternate with the sections which have weaves of the main thread with weft, forming three ledges from one side of the mesh and from another side - within one weave rapport. The weft threads 2'-6' and the weft threads 22'-26' are located above the first thread of the base, the weft threads 3'-5' and the weft threads 23'-25' are located above the second thread and the tenth thread of the base. The weft threads 23'-24' above which the first, second and tenth threads of the base do not form intersections, they are located at the same level among themselves.EFFECT: improved operational characteristics of the mesh.12 dwg, 1 tbl
FIELD: textiles, paper.SUBSTANCE: device comprises the means of loading of the test sample, in the form of a screw gear drive, connected to the and an interface unit, a digital camcorder located above the fixed clamp, connected to the computer, as well as the sensors of linear movement of the elastic element, connected through the microcontroller to the computer, the output of which through the microcontroller and the interface unit is connected to the motor-reducer.EFFECT: constructive simplifying of the device with simultaneous improvement of accuracy of friability evaluation, ease in operation.2 dwg
FIELD: textiles, paper.SUBSTANCE: group of inventions relates to a fabric suitable for creating structures of flexible cable channel, used for placement of cable in the tube. A flexible cable channel to separate the cables in the tube is described. The flexible cable channel is made of one or more strips of woven fabric and with the possibility of formation of a plurality of longitudinal compartments for cables. The woven material has a basis from monofilament warp threads and weft of a combination of monofilament and multifilament weft threads, and the multifilament weft threads are inserted repeatedly.EFFECT: reduction in pulling force required to insert the cable in a flexible cable channel made of a woven material, without reducing the strength and reliability of the structures of flexible cable channel.9 cl, 10 dwg
FIELD: textiles, paper.SUBSTANCE: textile substrate (1A) is composed of warp and weft and comprises several materials recycled and/or used in different ways. The first subgroup of the combination of all the warp and weft threads comprises one or several warp threads (K1(1), K2(1), K3(1)) and one or several weft threads (S1(1)). Each warp thread of the first subgroup and each weft thread of the first subgroup in each case consists of a first material different in recycling. The second subgroup of the combination of all the warp and weft threads (K1(2), K2(2), K3(2)) comprises one or several warp threads and/or one or several weft threads, and each warp thread of the second subgroup or, respectively, each weft thread of the second subgroup in each case consists of the second material different in recycling. The third subgroup of the combination of all the warp and weft threads comprises one or several warp threads and/or one or several weft threads (S1(3)). Every warp thread of the third subgroup or, respectively, each weft thread of the third subgroup consists of material (Z) degradable by chemical and/or physical way. The warp and weft threads of the first and the second subgroup (K1(1), K2(1), K3(1), K1(2), K2(2), K3(2)) are arranged so that they are not connected to each other and thus can be separated when the respective warp and/or weft threads (S1(3)) of the third subgroup are destroyed.EFFECT: simplification of recycling.29 cl, 1 tbl, 17 dwg
FIELD: textiles, paper.SUBSTANCE: product is provided, comprising a fabric comprising: (a) the yarn from a fibre mixture comprising: (i) from about 10 wt % to about 85 wt %, at least one two-band fibre containing an oxidized polymer selected from the group consisting of homopolymers based on acrylonitrile, copolymers based on acrylonitrile, terpolymers based on acrylonitrile and their combinations; (ii) at least one accompanying fibre selected from the group consisting of flame retardant polyester, flame retardant polyamide (nylon), flame-retardant viscose, flame retardant treated cellulose, meta-aramid, para-aramid, modacrylate, melamine, wool, polyamide (nylon), regenerated cellulose, polyvinyl chloride, antistatic fibre, poly(para-fenilenbenzo-bis-oxazole) ((PBO)), polybenzimidazole ((PBI)), polysulphonamide ((PSA)), and their combinations; and (b) optionally containing accompanying yarn, different from the said yarn from a mixture of fibres; wherein the said accompanying yarn comprises para-aramid in an amount of less than 20 wt % by weight of the fabric; and where the fabric has a weight of about 3 oz./yard2 (about 1 N/m2) to about 12 oz./yard2 (about 4 N/m2).EFFECT: improvement of tissue composition.29 cl, 5 tbl
FIELD: textiles, paper.SUBSTANCE: device for controlling the fabric density on weft, comprising a housing, a position sensor of the reed, a measuring transmitter of the section length traversed by the fabric, a signal amplifier of the position sensor of the reed, a pulse shaper, a circuit "AND", a counter, a timer, a computing means, and a display, a signal amplifier of the measuring transmitter of the section length traversed by the fabric, a counter of sections, connected to the computing means, having an interface with a computer and connected to the electronic control system of actuating mechanisms. Behind the signal amplifier of the measuring transmitter of the control length a pulse shaper is placed, which through the counter of sections is connected to the setting device of a number of sections, the number of pulses on the section, the control length of the fabric and the length of a separate section of the fabric. The setting device is connected to the computing means, and in the housing of the transmitter of the control length of fabric an incremental contactless angle sensor of rotation coaxially with the drum is mounted, the dimensions of which correspond to the minimum resolvable angle of the incremental contactless sensor of the rotation angle.EFFECT: increased control.6 dwg
FIELD: machine building.SUBSTANCE: invention relates to an elastic shock-absorbing gasket that can be compressed and that has initial thickness and a structure containing the following: parallel longitudinal threads; parallel transverse threads; parallel hollow elastic elements; the first layer of parallel threads passing either in longitudinal or in parallel direction; the second layer of parallel hollow elastic elements on one side of the first layer, which pass in longitudinal or transverse direction that is different from that of threads of the first layer; the third layer of parallel threads on the opposite side of the second layer in relation to the first layer and passing in the same direction like threads of the first layer; with that, parallel threads of the third layer are aligned so that they turn out to be located between parallel threads of the first layer without any superimposition on each other so that the structure compression is provided and a flat structure is formed in thickness direction at application of a compressive load to the above gasket, hollow elastic elements made as elastic ones in direction of their thickness or radial direction and in their longitudinal or axial directions so that stretching and compression of hollow elastic elements takes place so that their insertion is provided at application to them of a compressive load, and spring-like movement of the structure is performed in a reverse direction to initial thickness at removal of the compressive load.EFFECT: provision of elasticity under action of a load.47 cl, 20 dwg
FIELD: textiles, paper.SUBSTANCE: group of inventions discloses a three-dimensional woven preform, a fibre-reinforced composite material comprising this preform, and a method of their manufacturing. The woven preform comprises one or more layers of fabric with the warp located in a predetermined direction. A part of the fabric with the warp located in the predetermined direction is pushed into the mould to form a protrusion. The preform comprises a protrusion and a connecting protrusion on the housing. The housing and the vertical protrusion are integrally woven, thus forming a continuous fibre across the whole preform. One part of the fabric with the warp located in the predetermined direction comprises stretchable carbon fibres in the warp direction and the other comprises conventional carbon fibres. The fabric with the warp located in the predetermined direction may be woven on a weaving loom provided with a differential tension mechanism. The fabric with the warp located in the predetermined direction may be a single- or a multilayer fabric. The preform or the composite material may be a part of the aircraft port-hole frame.EFFECT: forming the three dimensional preform having a reduced weight and/or improved operational characteristics as well as complete weaving of different parts of the structure.40 cl, 6 dwg
FIELD: construction.SUBSTANCE: options for realisation of the invention are directed to non-woven fabric for the fibrous cement, comprising: web warp layer, having yarns of longitudinal direction (MD) and yarns of cross direction (CMD), twisted one relative to the other, besides the yarns of transverse direction (CMD) comprise the twisted monofilament yarns; and, at least, one bat layer overlapping the web warp layer.EFFECT: in such configuration, the non-woven fabric for the fibrous cement can have the characteristics better than that of the existing non-woven fabrics for fibre cement, including the easier cleaning, better wear resistance of yarns of transverse direction, better resistance to compression, higher strength of yarns of transverse direction, and better bond of yarns of longitudinal direction with yarns of transverse direction.9 cl, 3 dwg
FIELD: chemistry.SUBSTANCE: marking element is made in form of woven tape, formed by interlacing of main threads from thin poorly melting wire and weft threads of two types: glass threads of white colour and carbon threads of black colour, forming straps with specified combination, read by scanner. Application of fire-resistant threads in woven tape gives advantage of reliability of information storage under conditions of fire impact.EFFECT: increase of protection of marking element against counterfeiting.1 dwg
FIELD: textiles, paper.SUBSTANCE: invention relates to a fibre preform to create a conical casing, a composite element reinforced with fibres, comprising such fibrous preform, a composite element, and also a method of formation of a fibre preform. The fibre preform for creation of a conical casing comprises yarns or warp and weft fibres interwoven and forming a continuous flat spiral fabric, which has a shape of the Archimedean spiral and assembled or folded to form the conical casing structure.EFFECT: obtaining preforms with uniform strength and rigidity, with uniform distribution of fibres in the circumferential and axial directions, of any size, with minimal loss of fabric material, with use of single-piece fabric in order to minimise the number of parts and to reduce manufacturing operations.34 cl, 6 dwg
FIELD: textiles, paper.SUBSTANCE: shedding on a weaving machine (2), which driving is carried out by the main motor (3) equipped with a shedding device (4), which driving is carried out by the motor (5) of shedding, is carried out so that in each cycle (N) of motion of the weaving machine (2), the shed (7) formed by warp yarn (8) of the weaving machine (2) depending on the weave pattern is opened and closed. Operation of synchronism of the two motors (3, 5) is carried out by the signals (10) of the control device (9). During a certain number (Tn1, Tn2) of cycles (N) of motion the synchronism of the two motors (3, 5) is changed so that multiple angles (FSN) of the shed closing, at which the shed (7) in the corresponding cycles (N) of motion closes, form an increasing or decreasing sequence.EFFECT: improved motor operation.9 cl, 5 dwg
FIELD: machine building.SUBSTANCE: invention relates to rapier head for the weft threads insert in the rapier machine, and to the rapier machine with such rapier head. The rapier head used to insert the weft threads in the rapier machine contains a thread clamp installed on the rapier head, the clamp has fixed clamping part and movable clamping head, at that the movable clamping part is installed with the possibility of pressing to the fixed clamping part; besides the first hollow body installed on the rapier head, the body volume increases under internal pressure of the gaseous medium, at that this first hollow body is connected with the movable clamping part such that due to volume increasing of the first hollow body the force of the clamping part is created to act on the movable clamping part; besides valve installed on the rapier head and connected with the first hollow body such that gaseous medium intake is ensured via the valve in the first hollow body. According to the invention on the rapier head there is return device connected with the movable clamping part such that return force acting due to the return device on the movable clamping part is counteracting to the force of the clamping part; and on the rapier head a second hollow body is installed; in it creation of the internal pressure of the gaseous medium if provided, at that to the second hollow body the external control force is applied, it results in volume decreasing of the second hollow body; at that valve is connected with first and second hollow bodies such that upon opened valve the gaseous medium exchange between both hollow bodies is ensured, and in case of closed valve the gaseous medium cannot leave the first hollow body; at that on the valve a closing device is installed such that closing force generated by the closing device acts oppositely to the forces opening the valve, and valve is made with possibility of its activation by contact-free transfer of signals or forces.EFFECT: design of rapier head ensures contact-free control of the clamp for the weft thread with high reliability of the weft thread transfer at the machine middle also.15 cl, 12 dwg
FIELD: textiles, paper.SUBSTANCE: weaving machine for manufacturing fabric is provided with means for shedding for alternating lifting and lowering of the base material for shedding, is provided in the warp direction with the weft introduction means fixedly mounted in the zone of introduction of weft for introduction of preferably ribbon-shaped weft material to the shed, is provided with means of removal of the finished product, and also the means of movement of the product in the direction of the warp, through which the fell of the product in the area of the product movement may make reciprocating movement between the downstream release position and the upstream gripping position, for in the gripping position to bring into contact the weft material always inserted the last with the fell of the product. According to the invention, the upper and lower limiting means are also provided, which limit the opening of the shed and can make reciprocating movement between the upstream end position and the downstream end position, and in motion against the direction of removal they can move without contact with the product and/or the inserted last weft material.EFFECT: reduction of costs and increase in productivity.5 cl, 6 dwg
FIELD: textiles, paper.SUBSTANCE: double-section shuttle box is mounted on the guides oriented along the blade of the batten. The guides are moved in the bushings, fixed in pairs on a bar and the blade of the batten. The moving mechanism of the guides comprises a crank mechanism, the crank of which is fixed on the electric motor shaft and the rod is hingedly connected with its one end on the eccentric pin of the crank, and with the other - on the bracket mounted on the guides between the bushings. By turning the eccentric pin the stroke of the shuttle box is changed.EFFECT: increased efficiency and reliability.2 cl, 3 dwg
FIELD: textiles, paper.SUBSTANCE: braided preform for manufacture of composite structural parts of complex shape, consisting of a combination of zones of double-stranded and three-stranded weaving, comprises parallel zones with double-stranded weaving in the form of tapes, alternating with parallel zones with three-stranded weaving, at that the parallel zones with three-stranded weaving are formed on double-stranded weaving by inserting a third system of parallel strands along the direction of the zones. In addition, the zones with double-stranded weaving may be provided with arrangement of the strands at an angle equal to 7-45° to the longitudinal axis of the preform or with arrangement of the strands at an angle equal to 45-83° to the longitudinal axis of the preform.EFFECT: decrease in labour intensity and cost of its production while improving the quality characteristics, extension of the field of application.3 cl, 7 dwg
FIELD: textiles, paper.SUBSTANCE: invention relates to the field of reinforcing elastic woven materials used for manufacturing polymer composite products. The reinforcing elastic woven material is formed as combined weaving of textured polyamide yarns to form cells with projecting relief edges and with the size of the rectangles from 1 to 2 mm, as the textured polyamide yarns the material comprises twisted combination yarns with the nominal linear density of 10-15 tex, at a ratio of warp and weft polyamide yarns of 1:1, with a specific breaking load of 40-50 cN/tex and the degree of twisting of 50-75%, the material is formed with a thickness of 700-1500 microns with the surface density of 220-380 g/m2 at a linear density of 10-15 tex, at that the number of cells with projecting relief edges per 1 cm2 is selected as 45-90 pieces, the polyamide yarns of the material are selected with the linear density of the elementary fibre of 0.4-0.2 tex with their diameter of 90-50 microns.EFFECT: invention provides high adhesive properties and also high dimensional stability of elastic woven material in manufacturing the composite materials of complicated configuration.4 cl, 27 ex
FIELD: personal use articles.SUBSTANCE: mobile system for population training contains a vehicle with three training stations: a lecture room and two simulation facilities. The lecture room is arranged in self-contained pneumo-framed tent. The tent fabric canopy is made of a material reflecting IR radiation and containing a textile base, a metallised and a microporous membrane layers. The textile base is made of a polyester textile material with waterproofing impregnation. The metallised layer is made of titanium nitride. The microporous membrane layer is made of thermoplastic polyurethane resin and is positioned between the textile base and the metallised layer. Titanium nitride is applied onto the membrane layer at an atomic/molecular level is an amount of 1-2 g/m2. The textile base has a camouflage pattern.EFFECT: extending the range of possible operation conditions of the mobile population training system.6 dwg