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Manufacture of fibrous structure having variable thickness, by three-dimensional weaving Invention relates to the manufacture of the fibrous structure having a variable thickness, by three-dimensional weaving. The fibrous structure is manufactured by three-dimensional laminate weaving with the thickness in a direction perpendicular to the direction (C) of the warp and the direction (T) of weft that varies along the warp direction while maintaining the same number of warp threads involved in weaving in all levels of the fibrous structure along the direction of the warp. Upon transition in the warp direction from the first part of the fibrous structure to the second part of the fibrous structure having a thickness greater than the thickness of the first part, the number of planes of warp is reduced and the number of layers of warp threads is increased with no change in the number of warp threads by forming at least one plane (P1, …) of warp in the second part with the warp threads passing at least from two different planes (P1, P2, …) of warp in the first part. |
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Invention relates to the textile industry, namely to production of woven reinforcing fillers and can be used in manufacture of highly loaded power structures of cylindrical shape, such as pistons. Useful effect of the group of inventions is to increase the strength of parts of cylindrical shape, such as pistons, that operate at high pulsed pressures. |
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Coated double fabric and its use for making transition folds Invention relates to coated double fabric and its use for the manufacture of transition folds to connect sections of public transport or aircraft telescopic ladder. The fold is made of textile substrate coated with the elastomeric material, comprising a double fabric, both sides of which are covered by the elastomeric material. The method of joining two sections of public transport comprises mount of the transition fold between two interlocking sections of the transport. Double fabric coated with the elastomeric material in accordance with the present invention has one or more of the following properties: rigidity, delamination resistance, tensile strength. |
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Device for measurement of elastic textile materials Proposed device comprises material unwinding means, material transfer means as well as material transfer readout and processing means. Material transfer means are composed of the system of two transfer rollers, each being equipped with motor and measurement result correction system with due allowance for material deformation. Said system includes resilient pneumatic drum with its shaft engaged with encoder and pneumatic channels to communicate with digital pressure gage. It incorporates also read data conversion electronic units connected via interface units with the processor. |
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Method of production of fabric of check weave On fabric surface visual effect of several volume bands is made by changing the width of the individual checkers in the rapport of the original check weave on one of the systems of threads. To do this, one of the systems of threads is taken as active, the width of the initial checkers is specified on the threads of both systems and the number of their pairs on the active system of the threads, the basic weave in the checkers, the rapports of weave are counted, the model of the initial check weave is formed, the type of the approximating curve is set for resizing the checkers along the passive system of threads, the imitation of deformation of checker pattern on fabric is performed, new coordinates of change of checker colour are defined, and the model of the resulting pattern is redrawn, the rapport of the deformed check weave is created on the resulting coordinate grid. |
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Fabric of tapes made from cut polymer film tapes for production of air cushions Invention discloses the production of clothes suitable for use in making of automotive air cushion. Such materials are produced by making fabrics from multiple polymer tapes, for example, polyamide, main and weft tapes. The latter are produced by cutting, preferably, in lengthwise direction, of polymer film, preferably stretched in at least lengthwise direction. |
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Painting canvas containing agent capable of absorbing formaldehyde and method for production Invention relates to a painting canvas based on glass fibre intended to be applied on the inner surface of a building, which contains an agent capable of trapping formaldehyde, as well as a method of making said painting canvas. The painting canvas contains an impregnating agent and an agent capable of trapping formaldehyde which is selected from compounds with active methylene groups, hydrazides, tannins, amides, amino acids, peptides and proteins. The method of making the canvas involves feeding the canvas into a padding machine or device having two rollers, each having a centre tube for feeding the impregnating agent under pressure, followed by drying and collecting the canvas. The method includes a step of treating with an agent which is capable of trapping formaldehyde. |
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Method of fabric production lies in the mutual interweaving and twining the chain and forming warp yarns with the chain and twining weft yarns, at that the forming warp yarns are located in thread guides of zigzag shape, mounted with the ability of complex motion. At the first turn of the main shaft of the machine during shedding the forming warp yarns in the form of a loop described in the configuration of the thread guide, are moved to a position between the reed and fell of the fabric. After laying the chain weft the reed moves the chain weft yarn to the beating point, simultaneously to the breast beam the fell of the fabric is moved for while the reed enters between the chain weft yarn and the fell of the fabric the thread guides can be placed with the forming warp yarns without contact with the reed. At the second turn of the main shaft of the machine the forming warp yarns encircle the chain weft yarns and located in the shed in the form of a loop. After the formation of the shed, the twining weft yarn is laid both inside the shed of the chain warp yarns and inside the loop formed by the forming yarns. After laying the twining weft yarn is attached to the edge of the fabric; simultaneously with the movement of the reed to the fell of the fabric the forming warp yarns due to movement of the thread guide encircle the chain weft yarn, go out of the shed and area of movement of the reed. At the same time fell of the fabric is returned to its original position. The reed attaches the chain and twining yarn to the fell of the fabric, and parts of the twining weft yarn in contact with the forming warp yarns encircle the chain weft yarn and pass to the front side of the fabric. When forming the background part of the fabric, the thread guide acts as a harness frame. |
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Method of weaving bases with solid sidewalls Present invention relates generally to seamless three-dimensional workpiece with at least one sidewall, at least in one direction, formed from a woven base material comprising at least two layers, and to a method of forming such a workpiece. The fibres in the first direction are intertwined, at least between the upper layer and the second layer so that the upper layer can be bent relative to the other layers to form after bending a solid side wall. In addition, the fibres can be intertwined between the second layer from above and the second layer so that the second layer from above can be bent relative to the other layers to form after bending a second solid sidewall perpendicular to the first solid sidewall. In addition, the workpiece can comprise separate sidewalls formed by bending the parts of the upper layer. |
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Method of production of fabrics of comb shadow weaves In the claimed method on the surface of the fabric the visual effect of volume combs is obtained due to formation in the repeat of the weave of transverse and longitudinal light bands by gradual increasing and then decreasing the number of warp (or weft) overlaps without repetition, with uniform or non-uniform repetition of repeats of the basic weave in steps of light transitions. Voluminosity of the combs is produced due to the presence of the reverse light transition on both systems of filaments. |
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Invention relates to the textile industry, and refers to nylon staple fibres suitable for use in abrasion-resistant high strength nylon yarns. Obtaining of high strength nylon staple fibres with a denier per filament of about from 1.0 to 3.0 is included, as well as the strength of fibre T of at least about 6.0, and the carrying capacity T7 greater than about 2.5, including more than 3.2. These nylon staple fibres are manufactured by obtaining tows of filament yarns of nylon with a relatively high molecular weight (RV from 65 to 100), stretching and annealing of such tows using the two-stage stretching operation with annealing and subsequent stapling or other transformation of the tows stretched with annealing in the required high strength nylon staple fibres. The nylon staple fibres thus obtained may be mixed with the accompanying fibres such as cotton staple fibres, for production of nylon/cotton yarns (NYCO). |
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Nylon staple fibres with high carrying capacity and mixed nylon yarns and materials made of them Invention relates to the textile industry, and refers to nylon staple fibres with a high carrying capacity and mixed nylon yarns and materials made of them. The high strength nylon staple fibres are characterised by the denier per filament of 1.0 to 3.0, the strength of fibre T of at least about 6.0, and the carrying capacity T7 of more than 3.2. The tows of nylon filament yarns are manufactured, which are relatively uniformly moulded and hardened, by such tows stretching and annealing with the two-stage operation of stretching with annealing using relatively high degrees of stretching and subsequent stapling or other transformation of the stretched and annealed tows in the required high strength nylon staple fibres. The nylon staple fibres thus obtained may be mixed with other fibres such as cotton staple fibres, for production of nylon/cotton yarns (NYCO). |
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Two-layer reinforcing fabric for elastomeric coating Two-layer reinforcing fabric for elastomeric coating is proposed, made with a two-layer double weaving of warp and weft yarns and formed by junction together of the layers by two weft yarns, transferring from layer to layer. In each complete weave rapport the connecting weft yarns are located in cooperating pairs, which being opposite to each other alternately from above downwards and from below upwards encircle the extreme warp yarns of the rapport of each background layer, grouping the warp yarns into bunches forming on both sides of the fabric the identical bulged embossed longitudinal stripes spaced from each other. The pitch of the longitudinal strips is determined by the equation: t=50Rw/Pw and their number per 10 cm of fabric width is equal to n=2Pw/Rw, where t is the pitch of the longitudinal strips, mm; n is the number of strips per 10 cm; Rw is complete fabric rapport on the warp, equal to 6 or 8; Pw is the number of warp yarns per 10 cm. The proposed two-layer reinforcing fabric is made on the shuttle, gripper shuttle looms or rapier weaving machines. For production of reinforcing fabric with higher rates of breaking load on the warp each warp yarn in 6 or 8-yarn weave rapport should be repeated 2 to 4 times. To increase the breaking load of the fabric on the weft to 60% of the breaking load of the warp yarns, between the background layers alternately with the connecting yarns two filling weft yarns are additionally located, each of which being laid between the layers, forms with the extreme warp yarns the virtual elements of the plain weave, located obliquely to the surface of the fabric in the form of the break catenary curve. |
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Half-woollen fabric with complex of resistant protective properties Invention relates to the textile industry, namely, to the field of production and processing of textile fibrous materials with functional properties. Half-woolen fabric with a complex of resistant protective properties contains the yarn of the same linear density in the warp and weft. The yarn consists of wool and polyester fibres with the ratio of their average fineness equal respectively (1.05-1.28):1. The half-woolen fabric also comprises finishing material foborit R representing fluoroorganic cation-active product or its mixture with tratskan A representing an aqueous solution of quaternary ammonium salts of non-ionogenic polyesters in the amount of respectively 3.2-7.2 g/m2 and 1.6-3.6 g/m2. The surface density of the fabric is 200-300 g/m2 at the ratio of densities equal to 1.00-1.25. |
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Method of weaving of closed structures with intersecting walls Woven preform for fiber-reinforced composite material comprises horizontal layers of woven fabric and vertical layers of woven fabric, woven integrally with the horizontal layers. In addition, the vertical layers extend in the form of structural elements between the horizontal layers, and the horizontal layers and vertical layers form the through cells in the preform. |
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Compressible elastic insertion comprises a structure comprising: parallel warp threads and the parallel weft threads, at that any combination of warp threads or weft threads, or both combinations of warp threads and weft threads are made of elastomeric material with elastic properties in the axial direction. At that the first layer of parallel threads extending in the warp direction or weft direction, the second layer of parallel threads located on one side of the first layer, at that the second layer threads extend in the warp direction or the weft direction which is different from the direction of threads of the first layer, and comprise elastomeric threads, and the said structure additionally comprises a third layer of parallel threads, which is located on the side of the first layer opposite to the second layer and the threads of which extend in the same direction as the threads of the first layer. At that the parallel threads of the third layer are aligned so that they are located in the spaces between the parallel threads of the first layer in the same plane extending in the thickness direction. |
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Compressible elastic industrial fabric comprises substantially parallel threads oriented transversely to the motion of the fabric in the machine, substantially parallel threads oriented in the machine direction, a first layer of parallel threads extending transversely to the motion of fabric in the machine or in the machine direction, a second layer of parallel threads, which is located on one side of the first layer and which threads extend in one of the directions transversely to the motion of fabric in the machine or in the machine direction which is different from the direction of the threads of the first layer, and comprise elastomeric threads, and a third layer of parallel threads, which is located on the side of the second layer opposite to the first layer and which threads extend in the same direction as the threads of the first layer. At that the parallel threads of the third layer are aligned so that they are located in the spaces between the parallel threads of the first layer in the same plane extending in the thickness direction. |
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Method of production of electrically conductive textile material Method comprises evacuation and application of a thin metal layer by method of magnetron sputtering on a polymer film which is then bonded to a textile fabric with the metallic layer inwards or outwards, and evacuation of the polymer film is carried out before the pressure is (1-10)×10-5 mm Hg. |
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Method of production of multi-layer fabric Method of production of multi-layer fabric lies in successive formation of one or more sheds, with simultaneous or sequential laying in them of weft yarns, beat of weft yarns to the edge of the fabric, retraction of the fabric and release of the warp. In order to reduce the load on the warp at beating, to improve dimensional stability of the fabric and the degree of filling it with yarns, and to reduce the fabric shrinkage in width, the beating of weft yarns is carried out with the open shed and the reed is retained at the fabric edge up to the subsequent laying of the weft threads. In order to stabilise the tension of the warp threads in the fabric formation cycle, the forced compensation of change in the length of the warp yarns is carried out in the shed independently for each branch of the warp and consistently with the position of the heald frame. When developing the layered-backing fabrics to reduce abrasion of warp yarns and simplify the system of management of retraction of the fabric, forming individual layers and their pulling to the other layers is carried out by changing the stroke of the movable reed, and the direction of pulling is set by tilting the movable reed when it moves to the edge of the fabric in the direction of the layer to which the newly formed layer is pulled. |
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Preset-shape lined preforms with bidirectional reinforcement for composite structure Invention relates to reinforced composites, particularly, to lined preset-shape preforms with bidirectional reinforcement for composite structures. Lined preforms can be axially symmetric or asymmetric. Preform comprises parts of cloth produced by contour braiding, biaxial braiding, triaxial braiding, a part of fabric cut in skew line and/or a part of fabric produced by polar braiding. Preform can additionally comprise a part of fabric produced by 3D braining. |
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Hybrid three-dimensional fabric/layered spacers for use with composite constructions Fabric preform used to reinforce a composite structure, comprising a central part (6, 10), having interwoven layers. The preform also comprises a first and second end parts (4, 12) having independent fabric layers (50) which are woven in one piece with the interwoven layers in the central part (6, 10) and which extend along the entire length of the preform. Between the independent fabric layers (50) in the first and second end parts the diagonal interlayers (26) are inweaved. The first and second end parts may have reinforcement (71) extending through the entire thickness, comprising reinforcement fibers that traverse the independent fabric layers and the diagonal interlayers, coupling them together. |
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Head of rapier for weaving machine Head of rapier for a weaving machine comprises a clamping device for ribbon-like weft material introduced into the shed of the weaving machine. The clamping device is provided with a stationary clamping cam and one clamping cam spring-loaded with a spring, movable about an axis of rotation, each of which has a clamping surface, at that for opening the clamping device the control of the movable clamping cam through the control means is provided. According to the invention, the rapier head is provided with a frame, at that the clamping surfaces are located substantially outside the frame and in direction of the warp near the frame laterally on the console protrusions of the clamping cams extending outside the frame transversely to the direction of movement of the rapier head in the direction of crossing point of the warp with the weft, and the spring and the axis of rotation are located inside the frame. |
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Filter fabric for cleaning air from industrial dust is made of polyester warp and weft yarns of equal linear density. The fabric is made with satin weave from the multifilament polyester yarns at the base with the coefficient of charge of 1.15-1.2 and polyester yarn in the weft with the coefficient of charge of 0.8-0.85 of the same direction of twist. At that the fabric has a bilateral structure, and one side of the fabric has a smooth surface formed of long overlaps of warp polyester yarns, and the other side of the fabric has a shaggy surface formed of long overlaps based on the polyester weft twisted yarn. At that the openings between the yarns become rectangular in shape, the opening size between the warp yarns is selected from 0 to 5 mcm, the opening size between the weft yarns is selected from 120 to 100 mcm, air permeability is 70-90 dm3/m2 second. |
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Thermoresistant double-layer fabric is produced from yarns with different heat shrinkage, and the shrinkage of the upper layer is 10-30% and the shrinkage of the yarns of the lower layer is 2-4%. Connection of the upper and lower layer is carried out with yarns of layers along the contour having pattern in the form of strips, rectangles, rhombuses. The size of the geometric pattern on which is the connection of layers is carried out in one or two directions is 5-20 mm. |
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Improved fibrous structure for П-shaped preforms Method of manufacturing the woven preform comprises the steps of: (a) forming the adjacent layers, each of which comprises warp fibers extending in parallel to each other and forming substantially vertical columns. At the step (b) the weft fibers are woven in the layers of warp fibers to form a base and two legs extending from the base. Moreover, the base and each of the legs are made of at least two layers of warp fibers, the base has a first edge and a second edge, and each of the legs has an inner edge and an outer edge. Each weft fiber is woven so that it extends from the first edge of the base towards the central part of the base outwards its layers, then into the layers of one of the legs back to the central part of the base, then into the layers of the other leg and outwards the layers of the legs and back into the layers or the central part of the base towards the second edge of the base. At that the weft fibers extend into each of the legs from its inner edge to its outer edge and back to its inner edge and provide a mutual fixation of base layers and the layers of each leg, as well as a mutual fixation of warp fibers in each layer. |
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Method of forming fabric with variable density of filling thread Method of forming fabrics with variable density of filling thread arrangement, that lies in the fact that before filling thread beating fabric is moved to a distance greater than technology requires and then supplied toward the comb. At that in transition of density of fabric on weft the value of fabric supply towards the comb and the value of prior removal of fabric change. At the beginning of forming of a new portion with new density of filling thread during one cycle of fabric forming edge of fabric moves in the direction of mastitis (during transition to the thinned portion) or towards the remise (during transition to compacted portion) to a Δ=λb-λth where Δ is the displacement of fabric, λb is value of beating area in forming of the compacted area of fabric, λth is value of beating area in forming of thinned area of fabric. Thus, a clear transition of densities in the strips of fabric with variable density is possible. When moving to a thinned area after fabric moving to the above given value, the value of the fabric supply to comb is reduced to 0. |
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Wooven fabrics of polyester for airbags Invention relates to polyether wooven fabric, suitable for use in airbags. It has seams, woven from polyester filament tread with a specific tensile strength of 65 kN/tex or more and instantaneous temperature creep (ITC) at 100°C as defined herein, of 0.5% or less, wherein the polyester filament thread is formed of a polyester polymer which is selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, polyethylene-1 ,2-bis(phenoxy) ethane 4,4'-dicarboxylate, poly (1,4-cyclohexylenedimethylene) terephthalate and copolymers comprising at least one type of recurring structural units of the aforementioned polymers, for example, copolymer polyesters, polyethylene terephthalate/polyethylene isophthalate, polyesters copolymer of polybutylene terephthalate/polybutylene naphthalate, polyesters, copolymer of polybutylene terephthalate/polybutylene decane dicarboxylate, and mixtures of two or more of the aforementioned polymers and copolymers, and wherein the amorphous badly oriented yarn is stretched at least five times in order to maximise strength prior to relaxation. |
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Polymeric polyurethane composition and multilayer material based thereon Invention relates to polymer compositions for producing multilayer materials meant for making inflatable rescue equipment, including inflatable stairs for aircraft. The polymeric polyurethane composition contains a polyurethane polymer, filler - titanium dioxide and a fire-retardant - antimony trioxide, and additional filler in form of a layered nanosilicate which is organically modified with imidazole, and decabromodiphenyl oxide as a fire-retardant. Content of the organic modifier in the layered nanosilicate is at least 100% of the cationic volume capacity of the layered nanosilicate. The polymer composition can additionally contain polyisocyanate and ethyl acetate. The multilayer material contains a high-strength textile base coated with layers of said polymeric polyurethane composition on the front and back sides. The textile base used is a textile made from high-modulus SVM threads with density of 70-80 g/m2 and breaking strength on the base and filling of at least 1200 kg/cm2. The multilayer material has density of 220-270 g/m2 and is air-tight and self-extinguishing. |
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Product with anti-ballistic effect Proposed product with anti-ballistic effect, comprising a plurality of layers of fabric of fibers with a strength of at least 1100 MPa according to ASTM D-885. Moreover, in at least one fabric layer there are at least two groups of zones with different densities of fabric. At that the zones of the first group have a density of fabric on the roller from 8% to 31%, and the zones of the second group have a density of fabric on the roller from 32% to 80%. |
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Two-sided multilayer camouflage material Two-sided multilayer camouflage material comprises a textile base with camouflage paint, a metallised and a microporous layers. As the textile base, a cotton or cotton-lavsan material is used containing cotton fiber of not less than 60%, a metallised layer has a porous structure, is arranged in the material for 1/2-2/3 of its thickness and is represented as the polymer composition mixture comprising aluminium powder, which elements have a shape with asymmetric multifaceted surface, binder based on acrylic and methacrylic esters, acrylic thickener and pigment dye. The invention enables to perform the visual masking of the object in the visible and near infrared region of spectrum, as well as masking from detecting with methods of formation of infrared images in the middle and far regions of infrared band, while maintaining high hygienic properties, drapability and waterproofing. The face of the material is one that has the camouflage paint, and for night the face is the metallised layer, if the material is two-layered, or laminating layer, if the material is three-layered. |
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Method of jointing structural element of composite material with pipe Method of making structural part including tubular section 30 wherefrom extends structural element of composite. Proposed method comprises the following jobs: forming preform (49; 59; 69; 79; 99) including a stack of multiple superimposed layers so that layers in, at least, preform part to make structural section are secured to each other. Layers along, at least, preform another section to make section with pipe are separated to form tow opposed sheets (44; 54; 64; 68; 74; 94). Then, tube 30 is fitted between sheets of said connection section to make sheets surround the tube at least partially. Tube is connected to preform so that the tube make tubular section while preform makes structural element of structural part. |
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Method of obtaining tissues of longitudinal zigzag shadow weaves Method of obtaining tissues of longitudinal zigzag shadow weaves lies in the gradual transition along the weft, or along the warp from the basic weaves of the main class with a lighter main effect to weaves of the main class with a darker main effect, or vice versa. This is due to the gradual increase in single interlacing in steps, performed along the warp upwards or along the weft to the right, according to the invention, the longitudinal zigzag weaving is formed on the base of the initial shadow weave carrying positive or negative rapport shift of the initial shadow weave on the value of one step. In each tooth the direction of the slope of light stripes is changed to the opposite after a predetermined number Kw of warp yarns. Fullness of stripes and the teeth is obtained by forming the inverse light transition of the initial shadow weave with a number of steps equal to the number of steps of the direct light transition, to its mirror image. The pattern consists of the teeth located on the ascending or descending line formed by the sloping volumetric light stripes that change their width and direction on the width of the fabric. |
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Device for transmission of tape weft material Device (1) for transmission of preferably tape weft material (6) from the supply unit to the plotter (4) of the weaver loom comprises a clamping device (5) for clamping the free end (E) of the weft material (6). The clamping device (5) moves substantially in the direction (BR) of movement of the plotter (4) between at least two different working positions. The device (1) comprises an actuator (8) for moving the clamping device (5). In the method of transmission of preferably tape weft material (6) from the supply unit to the plotter (4) of the weaver loom the free end (E) of the weft material (6) is clamped in the clamping device (5) and transmitted to the plotter (4), and then the clamping device (5) opens and the weft material (6) is laid. The clamping device (5) is moved by the actuator (8) substantially in the direction of movement of the plotter (4) between at least two different working positions. |
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Weaving shuttle (30) has means (3) to change the direction of the ribbon and the spool (1) for the weft ribbons. It is possible to wind the weft ribbons (2) from the coil with the direction through the device (3) for changing the direction of the ribbon. The weft ribbon tension (FS) resulting from winding the weft ribbon deflects the device (3) for changing the direction of the ribbon against the rebalance force (FR). The device (20) for adjusting the tension of weft ribbons comprises: a sensor (5) of deflection which measures instantaneous position of the device (3) for changing the direction of the ribbon and generates a signal (5a) of the deviation in the form of a function of the measured position; the computing device (12) in which the signal on the deviation (5a) is given, and the variable electromechanical load (6, 14) with which the coil (1) of weft ribbons a variable braking torque is applied (7) depending on the regulating variable (u). The computing device (12) from the signal on the deviation given to it (5a) develops a regulating variable (u) for setting the electromechanical variable load (6, 14) so that a predetermined value of the device (3) position is set for changing the direction of the ribbon and thereby also the predetermined tension value (FS) of the weft ribbon. |
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Method of obtaining tissue of lozenge-shaped shadow weave In rapport of weaving the sloping volume light stripes are formed, extending in different directions, for which previously the original shadow weave is produced, taking one of the threads systems as active, and the second as passive. The original shadow weave is formed along the passive threads system, gradually passing from basic weaves of the main class with a lighter weft effect to weaves of the main class with a darker basic effect, or vice versa, due to gradual increase in the single interlacing in steps, made along the warp up or along the weft to the right; copying in inversed manner the direct light transition, the reverse light transition is obtained; the initial shadow weave is shifted along the threads of the passive system in a positive or negative side by the amount of shift, which is equal to the rapport of the basic weave. Then a break of sloping light stripes is carried out on warp and weft after Kwarp of warp and Kweft of weft threads. |
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Method of obtaining tissue with transverse shadow weave Method of obtaining tissue with transverse shadow weave is claimed. The method consists in the gradual transition along the warp from the basic weave of the main class with a lighter weft effect to the weave of the main class with a darker warp effect and back or vice versa. This is due to the gradual increase in the single interlacing in stages carried out along the warp up or along the weft to the right. The weave of several transverse volume light stripes of different widths is formed in rapport, for which a number of stripes in the rapport of shadow weave is taken, a kind of initial light effects in the stripes - from light to shadow or from shadow to light, depending on which the basic weave with the rapport Rb is taken: weft or warp. |
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Method of obtaining tissue with longitudinal shadow weave Method of obtaining tissue with longitudinal shadow weaves with volume light stripes is claimed. The method consists in gradual transition along the weft from the basic weaves of the main class with a lighter weft effect to the interlacing of to the main class with a darker main effect or vice versa. This is due to the gradual increase of single interlacing in stages made along the warp up or along the weft to the right. In the rapport the weaves of several longitudinal volume light stripes of different width are formed. The number k() of stripes in the rapport of shadow weave is taken, a kind of initial light effects in the stripes - from light to shadow or from shadow to light, depending on which the basic weave with the rapport Rb is taken. The number of stages of the transition from light to shadow (or from shadow to light) is found in each longitudinal light stripe equal to Rb-1. The k() of sequences of repetitions of the rapports in the j-th stage of the i-th longitudinal light stripe nij is taken. The rapport R() of weave on the warp is determined as the amount of threads in the first longitudinal stripes, which are in turn the sum of the warp threads in the direct Rd.i and reverse Rrev.i light transitions. The rapport Rw of the weft is defined as equal to the rapport Rb of the basic weave on certain formulas. |
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Device for control the cloth density in weft comprises a housing, a position sensor of the reed, a metering transducer of the length of the sector passed by the cloth, a signal amplifier from the position sensor of the reed, a pulse shaper, an AND circuit, a counter, a timer, a computing device and a display. And in the device the signal amplifier of the metering transducer of the length of the sector passed by the cloth is additionally inserted, as well as the counter of sectors and logic elements mounted at the output of the metering transducer of the length and connected to the computing device. The inputs of the signal amplifier are connected to the outputs of the metering transducer of the length connected to the counter of sectors, and the output s of the amplifier through the NAND logic elements and the counter of sectors are connected to the computing device having an interface with the electronic computer and connected to the electronic control system with the actuating units. The metering transducer of the length of the sector passed by the cloth while in operation of the weaving machine comprises a cylindrical element in contact with the cloth. It is mounted with the ability to rotate and is connected through the check mark with a computing device. The cylindrical element is in the form of a drum, inside of which the disc is coaxially mounted which is metallised on one end surface. On this surface the trapezoidal sectors are made, which large bases are located on the perimetre of the disc, and the length of the smaller base of the trapezoidal sector is made directly-proportional to the number of sectors, corresponding to the control length of the cloth sample. On smaller bases of the trapezoidal sectors on the disc a concentric groove is made insulating the inner part of the disc along the circumference, which operates as a common contact. And the sectors are isolated from each other and are the terminal areas. On a bracket fixed on the inner end surface of the drum, at the line of the groove a contact is placed, mounted with the ability of rotation about its axis. |
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Operating procedure of weaving machine comprising shedding machine Weaving machine comprises a shedding machine that has connected and disconnected movements of shedding means, and provided with the drive, which is controlled independently from the drive of the weaving machine. In case of breakdown of the manufacturing process the shedding means are configured so (N, N +1) that it is possible to implement the measures to eliminate the breakdown of the manufacturing process. |
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Method of obtaining tissues of transverse broken shadow weaves Method of obtaining tissues of transverse broken shadow weaves is declared. It consists in the gradual transition along the weft or along the warp from the basic weaves of the main class with a lighter weft effect to the weaves of the main class with a darker warp effect, or vice versa. This is due to the gradual increase in the single overlaps in steps made along the warp up or along the weft to the right according to the invention, the direction of the inclination of light stripes is changed to the contrary, after the specified number of Kw weft threads. The transverse broken weave is formed based on the original shadow weave, carrying out a positive or a negative shift of the rapport of the original shadow weave on the value of one step. The voluminosity of transverse broken light strips changing their direction along the length of fabric, is obtained by forming the reverse light transition of the original shadow weave, with a number of steps equal to the number of steps of the forward light transition, by its mirror image. |
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Method of obtaining tissues of inclined of shadow weaves In rapport of the weave the volumetric light strips inclined to the right or left are formed, for which previously the original shadow weave is produced, taking one of the systems of threads as the active, and the second - as the passive. Original shadow weave is formed along the passive system of threads with the rapport Ractive on the active system, equal to the amount of threads of the active system in the forward Rfor and reverse Rrev light transitions, and the rapport Rpassive on the passive system of threads, equal to rapport of the basic weave: gradually moving along the weft or along the warp of the basic weaves of the main class with a lighter weft effect to the weaves of the main class with a darker warp effect, or vice versa, due to the gradual increase in the single overlaps in steps, made along the warp up or along the weft to the right, copying mirror-like the direct light transition, the reverse light transition is obtained. The original shadow weave is then shifted along the threads of the passive system to the positive or negative side on the shift amount equal to the rapport of the basic weave. |
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Method for obtaining tissues of crepe weaves In the claimed method of obtaining tissues of crepe weaves the R0×Ry threads are added on the area of rapport, which is filled only with weft or only with warp overlaps numbered from bottom to top in ascending order, warp or weft single overlaps with the numbers from the generated one-dimension array of the list of possible numbers of added single overlaps, which is a random permutation of the integer numbers in the range [1, 2, …, R0×Ry] to achieve the desired values of parameters of obtained crepe weaves. |
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Method to produce fabrics of crepe weaves with identical repeats In the proposed method for production of fabrics of crepe weaves of identical repeats, consisting in iteration addition on the area of the repeat R×R threads, filled with only weft or only warp overlaps numbered bottom-up, a portion of R warp or weft single overlaps with numbers from one-dimensional arrays generated for each iteration from lists of possible numbers of added single overlaps representing random shifts of integers within [1, 2, …, R2], until specified values of parameters of produced crepe weaves are achieved. During each iteration single overlaps are added according to the main law of weaves of the main class, when one single overlap is permitted on each thread of both systems. |
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Method to produce fabrics of cross zigzag shadow weaves Method is proposed to produce fabrics of cross zigzag shadow weaves. The method consists in gradual transition along a weft or along a warp from base weaves of the main class with a lighter weft effect to weaves of the main class with a darker warp effect, or vice versa. This happens as a result of gradual strengthening of single overlaps in stages, carried out along the warp upwards or along the weft to the right. A cross zigzag weave is formed on the basis of the initial shadow weave, making a positive or a negative shift of a repeat of the initial shadow weave by the value of one stage. In each tooth they change direction of inclination of light strips to the opposite one after the specified quantity of Kw weft threads. Volume of strips and teeth is achieved by formation of a reverse light transition of the initial shadow weave with a number of stages equal to the number of stages in the direct light transition, by its mirror reflection. |
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Machine (1) is proposed to manufacture fabrics containing threads decorated with pearls (15), containing a back rest (2) to feed a warp (3) to a fabric-forming group (5) by means of direction of all warps in one plane with harness cords (7), with the help of which direction of warp (3) feed is controlled. The fabric-forming group (5) comprises a reed (9), through which warps (3) stretch, and which interacts with a bar (11) for form a fabric (8). The fabric-forming group (5) comprises two nippers (13), suitable for laying of a weft thread between warp threads (3). The bar (11) comprises a recess (16), facing the reed (9), and located near the field of the weft (14) installation. Nippers (13) comprise the first jaw (18), facing to the second jaw (19), with a substantially triangular profile. |
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Filtering element for air cleaning from flour dust in lines of flour supply to a dough-preparation device, the main material of which is a filtering cloth, made by twill weave of warp and weft threads. The cloth is made of polyamide complex threads with linear density of 93.5 tex (g/km), providing for smooth surface. Current-conducting threads are added into the cloth structure along the warp in the amount of 1.5-2.0%. The surface density of the cloth makes 400±40 g/m2, thickness - not more than 950 mcm, air impermeability - 260±40 dm3/m2.s, and level of specific resistance - not more than 104-105 Ohm. |
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Three-dimensional net includes a number of layers adjacent to each other. Each layer is formed with two mutually orthogonal families of threads or rods. Axes of threads or rods have the shape of screw lines oppositely twisted in relation to axes of threads or rods of the other family, which are located so that each thread or rod of one and the same family on each turn envelopes the thread or rod of the other family and at the same time envelopes adjacent threads or rods of the family of its own. Threads or rods of each layer are twined with threads or rods of adjacent layers. A combined net is possible, which additionally includes separate threads or rods or those connected by means of conventional, for example, cloth intertwining, which are located in its cavities, as well as the net, in which screw lines of adjacent layers are characterised with n-fold differing pitch. When implementing the method, there can be achieved the technical result consisting in sufficient enlargement of application field of intertwining having an important advantage - high degree of connection of the obtained structure. |
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Method of production of tissue of longitudinal broken shadow weaving Method of production of tissue of longitudinal broken shadow weaving is claimed. The method consists in gradual transition along the weft or along the warp from the basic weaving of the main class with a lighter weft effect to the weaving of the main class with a darker main effect or vice versa. This happens due to gradual increase of single overlaps in steps made along the warp up or along the weft to the right. The direction of the slope of light stripes is changed to the opposite after a given number KW of warp threads. The longitudinal broken weaving is formed based on the source shadow weaving, carrying out a positive or negative shift of the rapport of the source shadow weaving on the value of one step. Voluminosity of the longitudinal broken light stripes changing their direction across the width of the tissue is produced by forming a reverse light transition of the source shadow weaving, with the number of steps equal to the number of steps of the direct light transition, by its mirror image. |
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Technological process of production of non-laddering knitted fabric Machine comprises loop-forming elements (4) and at least one comb of the guide rods (2), with a set of guides (2a) for direction of the set of threads (10) to the loop-forming elements (4), in which each of the guides (2a) belonging to at least one of the combs of the guide rods (2), provides the direction of the set of threads (10). |
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Fabric for use in paper-making machine contains the warp threads mutually interwoven with the weft threads, and the said warp threads pass over at least two weft threads to form long warp floats; weft threads are interwoven over at least one warp thread to form weft floats; long warp floats and weft floats are formed in several planes, and each long warp float and the corresponding adjacent weft float lying in the highest plane of the said fabric are flattened to create on the surface of the said fabric of coplanar L-shaped weaving scheme. |
Another patent 2513521.