FIELD: textile, paper.SUBSTANCE: method to produce fabrics of crossed zig-zag shadow weaves, consisting in forming on the surface of a tissue teeth arranged along an ascending or descending line formed by oblique surround light bands, changing their width and direction along the length of the fabric, in choosing the basic weave of the main class and one of the yarn systems as active, forming the original shadow weave along the passive system of threads with increasing single overlaps in the steps along the base or along the weft; in the choice of the number of weft threads Ky before the break in the weft, the formation of the first and second fragments of the first tooth and the tooth as a whole, followed by the formation of the second tooth. The rapport is determined on the basis of the Ro of the transverse zigzag shadow weave according to the mathematical expressions: - with the active filament yarn system: - for the odd rapport Rb of the base weave Ro=2Rb[Rb (Rb-1)-1]; - for an even rapport Rb Ro=Rb[Rb(Rb-1)-1]; - with the active system of warp threads and any rapport Rb Ro=2 [Rb(Rb-1)-1]; take the magnitude of the shift of the vertices ±Sb, varying multiply the rapport Rb of the base weave with the active weft system within Rb≤|Sv|≤Ro-Rb, with the active main yarn system within Rb≤|Sv|≤Ro-2(Rb-1) warp yarns, then take the number of weft yams Ky to kink in each denticle, taking into account that on the one hand the number of filaments Ky≥|Sc|+Rb+2, on the other hand, with the active yarn system Ky≥2[Rb(Rb-1)-1], with the active warp yarn system and odd rapport, Rb, the number of yarns Ky≥2Rb[Rb(Rb-1)-1], and for the even repeat R6 Ky≥Rb[Rb(Rb-1)-1] weft threads; the rapport Rz of the tooth is determined, the number nz of teeth in the rapport along the weft and the rapport along the weft Ry of the transverse zigzag shadow weave according to the mathematical expressions: Rz=2Ky-[Sc]-2; nz=LCM=(Ro,Sc)/Sc (LCM - the least common multiple); Ry=Rznz. Then on the basis of the source of the shadow weave form oblique light streaks in the first and second fragments of the first teeth and cog in general cross shadow zigzag weave the Ky, Rz and Ro threads; the formation of the second and subsequent teeth exercise, bearing in mind the shift number of vertices ±Sc and number of teeth nz.EFFECT: multivariance of the interlacing of the teeth and the possibility of varying within a wide range of the angle of lifting or lowering the line of teeth of the volume crossed zigzags.5 dwg
FIELD: textile, paper.SUBSTANCE: according to the present invention, it is provided the fabric, having low surface density, small thickness, high strength, low air permeability and very good glossiness, the garment and the outer covering of the down product and the down-padded coat. More particularly, the present invention provides the fabric suitable to use as the topcoat, for example, sportswear, casual wear, women's and men's clothing, represented for example by down-padded coat, wind jackets, golf clothing and raincoats; the garment is created, it was made by using the fabric, at least partially; and the outer covering of the down product and the down-padded coat is created, it was produced by using the fabric, at least partially. The fabric according to the present invention is the fabric, that is calendered on one or both sides comprising the polyamide fiber, using as the warp and/or weft, at that after calendering, the linear density of the single fibre is 0.5-2.5 dtex, and the total linear density of the fibre is 5-50 dtex; the single elementary fibre has the cross-sectional shape, which is the flat multifoil with 6-10 protruding parts, and the flat ratio (W) (α/β) is 1.5-3.0; where the fabric has the filling factor of 1200-2500.EFFECT: improvement of properties.7 cl, 5 dwg, 3 tbl
FIELD: textile, paper.SUBSTANCE: method includes interlacing of a plurality of warp yarns with a single weft yarn, so that a tubular woven structure with a central axis is obtained. The blank can be woven using a continuous or tubular weave method and can be woven with at least two diameters along its length. The blank may comprise one or more layers of fabric formed on or attached to at least one surface of the tubular woven structure. The final structure may be a part of the window, rim of the wheel or combustion chamber in the jet engine.EFFECT: improved structural integrity of reinforced composite materials.33 cl, 10 dwg
FIELD: construction.SUBSTANCE: invention can be used in the manufacture of protective clothing designed for operation in high-risk conditions and resistant to aggressive media, in particular to a material ensuring the protection from thermal risks, sparks, and metal spatter. A heat-resistant fire-resistant multilayer material with polymer coating is described, consisting of one and a half layers of a fabric made from para-aramide fibre threads, in which the fabric is characterized by interlacing with a repeat, equal to 4 threads by the warp and to 8 threads by the weft, for the building of which more than one system of weft threads is used. The spaces between the threads are less than their diameter with the surface material density not less than 320 g/m2, and the heat-resistant polymer coating of the fabric is made on the basis of fluorine rubbers and/or a silicone composition.EFFECT: fire-resistant multilayer material based on para-aramide fibre and a polymer binder with the possibility of operation in corrosive media has been obtained.3 cl, 1 dwg, 1 tbl
FIELD: chemistry.SUBSTANCE: ferrous phosphorus-containing polymer contains a plurality of phosphorus atoms, with about 75% or more of the phosphorus atoms in the phosphorus-containing polymer present in the phosphine oxide fragments. The product comprises a textile material having, at least, one surface and a phosphorus-containing polymer located on, at least, a portion of the surface, the phosphorus-containing polymer containing a plurality of phosphorus atoms, and about 75% or more of the phosphorus atoms in the phosphorus-containing polymer are in the phosphine oxide fragments.EFFECT: method improvement.30 cl, 4 dwg, 5 tbl
FIELD: textile, paper.SUBSTANCE: weaving machine is proposed, having shedding elements to form a shed from warp threads, and having a device to form a leno edge of a ground thread and two leno threads, whereby the device includes a first guide device for guiding the first needle for a leno thread and the first needle drive for driving the first needle for a leno thread, as well as a second guide device for guiding the second needle for a leno thread, and a second needle drive for driving the second needle for a leno thread, wherein the guide devices and needle drives are mounted on a holder driven by a drive in the longitudinal direction of the needles for a leno thread; it additionally comprises a thread-guiding element having two guide loops extending parallel to the longitudinal direction of the needles for a leno thread, arranged on the thread-guide elements facing opposite to each other. According to the invention, the guide devices are made each in the form of a linear guide, so that the needles for a leno thread can be set in motion in the weft direction of the weaving machine, and wherein the first and the second needle for a leno thread are configured to be actuated through the appropriate coordinated first and second needle drives independently from the other needle for a leno thread in the weft direction of the weaving machine. The drive needles are made in the form of pneumatic, electric motor, or electromagnetic linear drives. Both guides and both drive needles are mounted on a holder, so that the first needle for a leno thread can be set in motion in the first plane and the second needle for Leno threads can be set in motion in the second plane, these two planes passing parallel to each other. The thread-guiding element is located in the area between the shedding elements and two planes of the needles for a leno thread, so a track is formed between the warp threads and the ground threads.EFFECT: improved performance.8 cl, 4 dwg
FIELD: textile, paper.SUBSTANCE: three-dimensional angle blank with an overlapping connection, and a method for forming a three-dimensional angle blank with an overlapping connection comprising a woven flange with at least one shelf which extends from the flange. The shelves may comprise an independently woven portion which allows for the formation of an angle without tacking the shelf or adding additional reinforcement. Independently woven parts may contain base fibers which are not woven into the blank.EFFECT: unwoven area allows to remove part of the shelf before forming an angle, enabling the overlap of the shelf parts and formation of a lap joint.14 cl, 19 dwg
FIELD: textile, paper.SUBSTANCE: in the method of determining the waste of the weft threads while geosynthetic grid manufacturing consisting in photographing the selected area, forming a file in the computer with the image of the analyzed area according to the invention, forming a square setting gauge with predetermined internal dimensions, laying it down on the surface of the textile grid to define the boundaries of the analyzed area, then sequentially count the number of weft and warp threads in the image on the computer, determine the average distance between the warp and weft threads, form the calculated grid of weave threads with the sizes defining the average distance between the warp and weft threads, calculate the total lengths of the weft threads over the entire area of the analyzed area of calculated grid using a computer program, measure the total length of the weft threads on the actual image, and by their difference determine the weft threads waste on the entire area of the geogrit.EFFECT: ability to determine the waste characteristics of the weft threads and reduce the time spent on their determination.2 dwg
FIELD: machine engineering.SUBSTANCE: suspension hinge consists of an elastic part (1) with fastening elements (2, 3). In it, the elastic part (1) is made of braided (4) and wound (5) thread layers with their dense arrangement and formed around the fastening elements (2, 3). The fastening elements (2, 3) are made with the inclusion of force rings in their structure with bending of same threads of the elastic part (1) around them. The method is also claimed for manufactuing said suspension hinge of rotary nozzle and consisting in execution of successively performed assembly and winding operations. In the course of preliminary manufacture of structural and technological carcass of hinge made from braided (4) and wound (5) threads with use of metal rings (6, 7) in areas of fastening elements followed by its circular piercing and impregnation with silicon.EFFECT: creation of suspension hidge for connection of links of structures with provision of relative movement, the operation principle is not related to shear deformation of material and method of its manufacture.2 cl, 5 dwg
FIELD: textile, paper.SUBSTANCE: braid includes an elongated wall having opposite edges extending parallel to the central axis. The wall is woven with a warp yarn extending parallel to the axis and a hybrid weft yarn extending across the warp yarn. A hybrid weft yarn having a fibrous core and non-metallic first and second yarns covering the fibrous core is provided. The first yarn is twisted around the fibrous core in the first helical direction and the second multifibrous yarn is interwoven with the first yarns around the fibrous core in the second helical direction. The first helical direction and the second helical direction are opposed to each other to provide a final zero torque on the fibrous core.EFFECT: direction and protection of elongated elements.15 cl, 5 dwg
FIELD: textile, paper.SUBSTANCE: methods for producing composites suitable for forming soft and hard armour protection are described. More specifically, methods for producing fibre composites resistant to bullets and splinters, characterized by improved bullet and splinter resistance properties, including a low value of cup depth. The methods involve performing the fibre surface treatment.EFFECT: improved anchoring of substances deposited on the surface of fibres, reduced delamination, and benefits related to it.18 cl, 3 tbl
FIELD: textile, paper.SUBSTANCE: material contains: the main yarn, made of yarn from Japanese parchment; and an auxiliary thread, a thinner thread than the main thread; intertwined with each other; where the woven textile material has an interlacing structure comprising a warp yarn A and a weft yarn A made of a warp yarn; and a main thread B and a weft yarn B made of an auxiliary yarn; where, in the interlacing structure, the series of warp yarns have a repeating row structure in which a plurality of warp yarns B are located between the two main A strands; and the rows of weft yarns have a repeating row structure in which a plurality of weft B yarns are disposed between two weft A threads, and where the warp A yarns and the weft A yarns cross each other in the weave web structure.EFFECT: high weave density.15 cl, 6 dwg, 1 tbl
FIELD: textile, paper.SUBSTANCE: shedding device for the loom includes at least one rotational electric drive provided for winding around the pulley of a conductive element that controls at least one heald. The output drive shaft rotates around the first axis. The shaft is provided with a gear which engages a toothed wheel rim rigidly connected to the pulley and rotates together with the pulley about the second axis perpendicular to the first axis.EFFECT: increased efficiency.11 cl, 8 dwg
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