FIELD: textile, paper.SUBSTANCE: way for producing waffle weave fabrics with differently directed square diagonally spaced relief elements, consists of forming parallel diagonals from single main floats, between which, one float from the diagonals, the main deckings of variable length are placed, which create repeating square relief elements from the main deckings with a slope. A second perpendicularly directed rectangular relief element is formed having a common or separate diagonal with the first element, for which a basic filling twill of the principal class with an odd rapport Rb is accepted, the number of mm main deckings of maximum length in the rapport of the relief element within 2…Rb, one of the systems of threads as active, the second as passive; rapiers of wafer weave for the passive Rpassive and active Ractive and thread systems are determined; the vertex of the diagonals of the first relief element at the intersection Rb of the passive system thread (x1=Rb) with the first thread of the active system (y1=1) is put, a short diagonal of the relief element is obtained as a filling twill of the principal class with negative shift; long diagonals with the number of main deckings are placed perpendicularly to the short, equal to Im=Rb+mm-1; deviating one float from diagonals, the main deckings of variable length are placed, mm of which have a maximum length equal to ld=2Rb-5 of floats, obtaining in the rapport the first rectangular relief element; the coordinates of the vertex of the second relief element from the main deckings along the passive x2 and by active y2 systems of threads are determined; the first part of the second relief element from the main deckings of variable length is formed, varying from 1 to ld with a pitch equal to two floats, then a second part of the second relief element is obtained, successively shifting mm-1 of main deckings of ld floats along the active system by one strand of the passive system to the left with the active system of weft threads or downwards with the active system of warp yarns, after which a third part of the main deckings element of variable length is formed, varying from ld-2 to 1 in increments of two floats; then the resulting second relief element from the main deckings is framed by short main floats; retreating from the element one float; during the entire construction, the main floats that go beyond rapports on the active or passive filament systems are placed within their limits.EFFECT: invention extends the range of waffle weave fabrics by a new arrangement of square relief elements from the maindeckings and floats of variable length.8 dwg
FIELD: textile, paper.SUBSTANCE: invention relates to a fibrous preform (100) woven as a single piece using three-dimensional weaving, intended for the shelve manufacture of a composite material with a closed box construction for a turbine engine fan. In each plane of the fiber preform, a plurality of threads are interwoven with the layers of fill yarn threads on the first, second and third sections (102, 104, 106) of the fiber preform; at the same time, there remains a closed (thread) non-interlacing zone 108 separating the first section from the second section over a certain dimension of the fiber preform length in the direction of the base between the upstream (thread) non-interlacing border (108a) and the downstream (thread) non-interlacing border (108b); and at the same time, at least one open (thread) non-interlacing zone (110) that separates the second section from the third section over a certain dimension of the fiber preform length in the direction of the base, from the (thread) non-interlacing border (110a) to the downstream (100c) fiber preform. The invention also provides a method of manufacturing a preform for a composite material shelf with a closed box construction designed for a turbine engine fan using such a fiber preform.EFFECT: increased effectiveness of the preform.15 cl, 23 dwg
FIELD: machine engineering.SUBSTANCE: mechanism for driving heddle contains cranked levers, an under-heddle draft, updrafts and a heddle frame. In addition, it comprises an elastic-compensating assembly, support-mounting elements and fastening means. The under-heddle draft and a lower arm of at least one cranked lever are connected by means of an elastic-compensating assembly. This assembly is mounted in the articulated joint area of the mentioned draft and the cranked lever, formed by the elastically deformable element. The end sections of the elastically deformable element are fixed to the support-mounting elements, each is fixed to the under-heddle and the cranked lever, respectively.EFFECT: reduced vibration.4 cl, 5 dwg
FIELD: textile, paper.SUBSTANCE: invention deals with textile part which in particular is provided and configured to manufacture a laminate material element (11) or parts (12) from the laminate material. The textile part (10) has an amplification system (15) from reinforcing substrate yarns (16) and reinforcing yarns (17) of the weft. Furthermore, there is a binder system (25), which consists of binder substrate yarns (27) and binder yarns (26) of the weft. The amplification system (15) has at least one first area (20), wherein the reinforcing yarns (16, 17) are woven directly with each other and thus interweave. This leads to a high mechanical load capacity of the laminate material in the area in which the said at least one first area (20) of the textile part (10) is located. In addition the amplification system (15) has at least one second area (21), wherein the reinforcing yarns (16, 17) form a crossing space (22) without interweaving and are preferably laid elongated beside each other. Thus, the amplification system (15) in the said at least one second part (21) is a non-woven web. This non-woven web is inside the binder yarns (26, 27) of the binder system (25).EFFECT: particularly good drape and deformability is provided through the non-woven web of the amplification system provided in the second part in this area of the laminate material.15 cl, 12 dwg
FIELD: textile.SUBSTANCE: disclosed is biaxiisotropic industrial fabric for elastomer coating, made by double-layer weaving of identical in raw material composition and linear density warp and weft threads. Fabric is formed by connection of two identical four-ply by warp and weft double-layer weaves, containing by four warps threads arranged in pairs in two levels-layers and by four weft threads. Three of four weft threads (two interwoven with warp threads of only upper or lower layer are background and one if straight-filling) are located in one plane above each other. Fourth weft thread, rounding upper and lower layers warp threads in alternating order, connects them into two-layer weave. In obtained eight-thread repetition by warp two background weft threads of each level-layer are connected to each other, forming wavy branches arranged in two levels. Straight filling weft threads of each composite repeats are bending and serve as connective and dressing weft threads. Connectivity coefficient at fabric filling from 75 % to 100 % can be in range from 5.0 to 10. Proposed fabric can be used as elastomer coated mechanical articles reinforcing frame, preferably for ground vehicles and aircrafts “soft” fuel tanks production, middle and heavy series rubber-rope conveyor belts protective layer-breaker, rubber-fabric hoses and other industrial rubber articles.EFFECT: proposed fabric without elastomer coating can be used for production of special protective clothes, body armor and armor plates, parts of shoes, industrial filters partitions for filtration of fluids and gas-air mixtures.1 cl, 2 dwg, 1 tbl
FIELD: textile, paper.SUBSTANCE: method for producing waffle weave fabrics with rectangular diagonally arranged relief elements, consisting in the formation of parallel diagonals from single main overlaps, between which, one diagonal overlapping from the diagonals, the base decks of variable length are staggered, which create repeating rectangular relief elements from the main deck with a slope. Repeating rectangular relief elements with a tilt to the right or to the left, which in the first instance take the basic weft twill with the repeating pattern Rb Number mo main decking maximum length in rapport relief element within 2…2Rb, One of the threads in the system as active and the second as passive; with the specified number of additional threads of active and passive systems Nactive and Npassove in the repeat of the relief element. In this case: is Nactive - any integer within -2…+2, Npassive. are taken equal to -1 or +1 with the odd mo, equal to -2, 0 or +2 if the number is mo; the repeating pattern of the waffle weave is defined as RPassive passive system threads; shift SActive is specified as peaks of the relief element active system threads within -Rpassive/2…+Rpassive/2 as an even number, including zero, with an even number of strands Nactive+RPassive or as an odd number, non-zero with the odd number of strands Nactive+ Npassive; Find the number of repetitions of the relief element n repeat, repeat the element Re and repeat the waffle weave R Active according to the active system of threads; Place the first vertex of a rectangular diagonally placed relief element at the intersection of the first thread of the active system with Rb the thread of the passive system; The short diagonals of the relief element are obtained as the weft twill of the main class with negative shift and the long diagonals with the number of principal overlaps equal to lo=Rb+Mo-1; Repeat the pattern of the original rectangular diagonally positioned relief element from the warp effect of variable length, mo of which have a maximum length equal to ln=2Rb-5 main overlaps; The subsequent repetitions of the relief elements are obtained by copying the original relief element, each time with the vertex of the rectangular diagonally disposed relief element shifted along the passive thread system to Re threads of the active system and along the active yarn system on ±Sactive. threads of the passive system; When non-closed rectangular diagonally arranged elements are placed on the weft effect, additional diagonals are set up between the relief elements of the warp effect along the passive or active systems of the filaments; the location of additional diagonals is taken from the condition of obtaining the maximum possible area of relief elements from the weft deck; To obtain waffle interlaces with rectangular relief elements with the slope of the elements from the basic decking to the left, the pattern of the weave is mirrored by the active system of threads.EFFECT: invention extends the range of waffle fabrics by changing the area of rectangular diagonally placed raised elements, of varying number and location in the repeat pattern.8 dwg
FIELD: textile, paper.SUBSTANCE: application describes a wearable textile shell, resistant to ends peeling, to protect elongated objects and a method for manufacture of such a shell. The shell has an elongated wall containing warp threads extending generally parallel to the longitudinal center axis of the shell and weft threads extending along the circumferential perimeter of the shell. The warp threads and the weft threads are intertwined with each other according to some weaving pattern. The warp threads are arranged in discrete groups alternating along the circumferential perimeter of the shell wall with adjacent groups containing a different number of warp threads.EFFECT: in such a construction, the wall contains groups with an increased number of warp threads that increase shell stiffness and abrasion resistance, and groups with fewer warp threads improve shell flexibility along its central longitudinal axis.19 cl, 4 dwg
FIELD: chemistry.SUBSTANCE: cured prepregs have an improved ability to remove gases from themselves and the space between the prepreg layers in a stacked prepreg package before and/or during compaction and curing. Each cured prepreg is a resin-impregnated woven fabric which has been treated to create an array of holes on at least one major surface. Holes arrangement is characteristic of weaving pattern. As the prepregs are laid in the package and processed during squeezing to obtain a composite member, a shorter squeezing time may be achieved compared to application of such prepregs without surface holes.EFFECT: reduced squeezing time before curing for part and achievement of structural properties required for the end use in any design.17 cl, 29 dwg, 8 ex
FIELD: chemistry.SUBSTANCE: fibrous structure (200) for reinforcing articles made of the composite material is proposed, woven as an integral part by a multilayer weave between the first plurality of the filament layers (C1-C10) and the second plurality of the filament layers (T1-T10). The fibrous structure comprises a portion (204) of the reduced thickness, which has: a plurality of areas (210, 211, 212) removing filaments on the continuous surface, in each of them the filaments are interrupted (FC3; FC8; FC4) out of the filament layer (C3, C8; C4) of the first plurality of the filament layers that lie beneath the filaments of the first plurality of the filament layers, which are located on the structure surface; and a plurality of areas (220, 221) removing filaments on the discontinuous surface, in each of them the filaments are interrupted (FC1; FC10) out of the filament layer (C1; C10) of the first plurality of the filament layers located on the structure surface. Each interrupted filament (FC1; FC10) is replaced with a filament on the structure surface (FC2; FC9) out of the filament layer (C2; C9) lying beneath the first plurality of the filament layers. The filaments of the layers of the second plurality of the filament layers (T1-T10) located on the surface of the fibrous structure are continuous, at least, around the portion (204) of the reduced thickness.EFFECT: improved properties.12 cl, 5 dwg
FIELD: textiles, paper.SUBSTANCE: invention relates to a fibrous structure (S1) for composite material parts reinforcement, wherein the noted structure is woven as a single integral piece by the multilayer weave between the first plurality of thread layers (t10, t20, t30), extended in the first direction and the second plurality of thread layers (10, 20, 30) extended in the second direction. A second plurality of thread layers comprises at least one thread layer (10) with variable weight, each thread with a variable weight is designed as a shareable set of individual threads (11, 12), each of which has a certain weight. The fibrous structure (S1) comprises at least one area (2G) with a reduced thickness, in which the thread (10) with a variable weight has a weight that is less than the weight which it had before the noted area with reduced thickness.EFFECT: invention extends the fibrous structures product range for reinforcement materials.13 cl, 7 dwg
FIELD: textile.SUBSTANCE: fibrous workpiece (20) is made of fibrous structure, woven by three-dimensional weaving, having plurality of warp threads layers, connected to each other by means of plurality of weft threads layers weft threads, wherein fibrous structure has first section (12) and second section (14), which continue each other in weft direction and which are arranged at angle to each other.EFFECT: in fibrous structure bend area and in each weft plane two weft threads, located in area adjacent to fibrous structure external surface, located on angle inner side, have paths, which intersect, so, that these threads have smaller curvature.17 cl, 9 dwg
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