Abstract: Provided is an organic fiber doubled-and-twisted yarn cord the twist structure of which is uniform and with which it is possible to reduce weight. A doubled-and-twisted yarn cord comprising an organic fiber characterized in that a total fineness is 5000-15000 dtex inclusive, a coefficient of twisted yarn length difference between untwisting yarns constituting the doubled-and-twisted yarn cord that is obtained by an expression: coefficient of twisted yarn length difference (%)=(maximum value of yarn length difference between untwisting yarns)/(average value of yarn length of untwisting yarns)×100 is 1.5% or less, and breaking strength is 7.0 cN/dtex or greater.

Abstract: The current invention concerns an improved system and method for the manufacturing of alternating S/Z cabled yarn 16) or connected alternating S/Z twist plied yarns, in which tension decrease or increase is avoided by variable longitudinal contraction when twist plying or overtwisting yarns. This longitudinal contraction Is very difficult to predict and leads to tension in the yarns, which can affect the quality. This tension can also be reproduced in the installations. This invention tries to improve this by providing a tension compensator (24) that (partially) compensates the tensions and forces between different, subsequent forces for processing yarns.

Abstract: An authentication device comprising a woven authentication pattern, wherein the woven authentication pattern comprises a plurality of pattern forming woven elements each defining at least one pattern defining element or a plurality of pattern defining elements, and each pattern forming woven element is formed by a plurality of threads having contrasting optical or visual properties in twisted mutual engagement, wherein said pattern defining element has a spiralling outline or boundary and adjacent or abutting pattern defining elements of a pattern forming woven element are visually or optically distinguishable.

Abstract: A yarn texturizing apparatus and method for texturizing a plurality of yarns, which can include a tack assembly and a jet box assembly. The tack assembly can be configured to receive a bundle of yarns and impart a plurality of twists to each bundle of yarns and subsequently impart a first tack point at a point corresponding to a twist reversal between the twists. The downstream jet box assembly can be configured to place a plurality of additional tack points intermittently along the plurality of twists of each bundle of yarn.

Abstract: A device for producing intertwining knots in a multifilament thread has a rotating nozzle ring with an encircling guide groove on an outer casing and an encircling sealing surface on an inner casing. At least one nozzle bore opens radially into the guide groove and passes through the nozzle ring. The nozzle ring is guided on a stator that has an encircling sliding surface on its periphery for guiding the nozzle ring and that forms a pressure chamber having a chamber opening that opens into the sliding surface. The sealing surface of the nozzle ring interacts with the sliding surface of the stator in order to provide air sealing. The nozzle ring is formed in a pot-like manner with an end wall having a disc-like end sealing surface which interacts with an end sliding surface formed on an end side of the stator to provide air sealing.

Abstract: An SZ laying machine for umbilical/power umbilical is described. Starting from an input end the machine includes: a first die receiving and collecting a first set of elongate elements substantially rectilinear from respective supplies of elongate elements, a second static die which receives and collects a second set of elongate elements substantially rectilinear from respective supplies of elongate elements and this second set is closed together with the first set into an assembled bundle, at least one supporting means which keeps the assembled bundle radially in place; a revolving device able to torsional rotate the bundle back and forth in an oscillating SZ manner, and a tape or band winding apparatus which in immediate proximity to the revolving device applies band or tape circumferentially onto the SZ laid bundle of elongate elements.

Abstract: An upstream twisting inhibiting roller, a twist non-inhibiting roller, a twist provider and a downstream twist inhibiting roller are provided in this order along the path line of a coated optical fiber. The twist provider provides the twist to the coated optical fiber. The upstream twist inhibiting roller and the downstream twist inhibiting roller respectively inhibit a rotation of the coated optical fiber around the axis of the coated optical fiber. The twist non-inhibiting roller does not inhibit the rotation of the coated optical fiber around the axis of the coated optical fiber.

Abstract: The present invention provides an improved method and device for producing an alternate S/Z twist plied braid and joined alternate S/Z twist plied yarns. The invention further provides an alternate S/Z twist plied braid and joined alternate S/Z twist plied yarns produced according to a process of the invention.

Abstract: Apparatus and a method for producing a yarn, the apparatus and method comprising a reciprocating twisting stage, the reciprocating twisting stage comprising one or more twist rollers that rotate along an axis of rotation and that are arranged to move reciprocally along the axis of rotation to impart twist to one or more slivers to form twisted strands; and a drive system for one or more take up holders, the drive system arranged to have wound onto the one or more take up holders the yarn after two or more strands are twisted together to form the yarn. The drive system is arranged to drive the one or more take up holders such that the linear speed at which the yarn is wound onto the one or more take up holders can be controlled relative to the linear speed at which the strands exit the one or more twist rollers.

Abstract: The present application of the invention aims at improving knot strength of a twisted yarn without compromising circularity, with respect to various yarns including a fishing line. For such purpose, the present application of the invention provides a yarn including a multifilament subjected to two twisting processes in different directions, and a coating resin that covers a surface of the multifilament; wherein the multifilament is subjected to a first twist in one direction, and then to a second twist in a direction opposite to that of the first twist, without being doubled with another yarn.

Abstract: ATP yarns having high twist efficiency (low residual twist) as well as methods for increasing the self plying action that occurs in ATP yarn processing. The self plying action and the ATP yarn structure may be improved by increasing the convergence angle of the singles twist yarns to above 50 degrees (compared to current values of 0 to 35 degrees). The increased convergence angle permits an increase in the ply twist above the level possible by self plying alone. This results in a yarn with reduced residual singles twist. An array of singles torque jets and an optional ply torque jet has been developed to achieve a high convergence angle. The angle between the singles torque jet axes can be varied from 0 to 180 degrees.

Abstract: The invention relates to a method for producing a towel, specifically a low twist towel, comprising the following steps: Z twisting a thick yarn and separately Z twisting a fine count yarn; unevenly S twisting the Z-twisted yarns to make the volume of the thick yarn more than that of the fine count; weaving the yarn to produce a fabric; processing the fabric with hot water to reduce inner tension in the yarn and make the fabric become fluffy. Fabric produced by this method can solve the dependency on PVA, reduce energy consumption and material consumption, and prevent water pollution. This method for producing a low twist towel is environmentally friendly, healthy, and energy saving.

Abstract: The present application of the invention aims at improving knot strength of a twisted yarn without compromising circularity, with respect to various yarns including a fishing line. For such purpose, the present application of the invention provides a yarn including a multifilament subjected to two twisting processes in different directions, and a coating resin that covers a surface of the multifilament; wherein the multifilament is subjected to a first twist in one direction, and then to a second twist in a direction opposite to that of the first twist, without being doubled with another yarn.

Abstract: A nanofibre yarn assembly including a longitudinally extending core for the yarn assembly and, twisted about the core, at least one ribbon of multiple nanofibres. The yarn assembly can be formed by drawing a longitudinally extending core for the yarn assembly through a concentric core-spinning zone, and, as the core travels through the core-spinning zone, twisting at least one ribbon of multiple nanofibres about the travelling core. Apparatus is also disclosed.

Abstract: A cord for rubber reinforcement of the present invention includes a core strand including a plurality of strands (A), and a plurality of strands (B) disposed around the core strand. In the core strand, the plurality of strands (A) are finally twisted, and each of the plurality of strands (A) is formed of a plurality of reinforcing fibers (A) that are primarily twisted. Each of the plurality of strands (B) is formed of a plurality of reinforcing fibers (B) that are primarily twisted, and the plurality of strands (B) are finally twisted to be disposed around the core strand. The direction of final twist of the plurality of strands (B) is the same as the direction of primary twist in at least one strand (B) selected from the plurality of strands (B). The number of primary twists in the strand (B) is greater than the number of primary twists in the strand (A), and/or the number of final twists of the strands (B) is greater than the number of final twists of the strands (A).

Abstract: Four light-transmitting mono filaments (2) each having an almost circular cross section and surface substantially being mirror surface are arranged in a single layer and in parallel, and a flat yarn (3) formed by fusing or melt-bonding adjacent mono filaments (2) to each other and fixing them is twisted. Twisting is imparted over a full length of a light diffusing yarn (1) continuously at a frequency of more than one time with a length five times as long as the width of the flat yarn (3). The twisting cyclically reverses the front and rear surfaces of the flat yarn (3) along the longitudinal direction of the light diffusing yarn (1) to continuously change the longitudinal-axis direction of each mono filament (2) along the longitudinal direction of the light diffusing yarn (1).

Abstract: A silicone coated fabric having a base woven fabric that is formed from a synthetic fiber weaving yarn that has a yarn size of from 100 to 270 dtex, and a weaving size expressed by product calculated by multiplying the yarn size of a weaving yarn and a weave density (ends or picks/2.54 cm) of from 10,000 to 25,000 (dtex·ends (or picks)/2.54 cm) in both the warp direction and the weft direction, a silicone being applied to the woven fabric in an amount of from 5 to 25 g/m2, and having on one side a uniform silicone coating layer forming part of the silicone mentioned above. The silicone coated fabric is a lightweight coated fabric that shows improved heat resistance, improved flexibility and an improved low coefficient of friction as well as particularly improved burning resistance. The fabric can therefore be used for producing lightweight and compactly storable airbags that suppress bursting starting from a burnt-through-hole, and that shorten a deployment time.

Abstract: An unspun yarn including a longitudinal main rope body formed from a least one fibre assembly of substantially untwisted and parallel fibres, and a least one reinforcing thread helically wound around the rope body and extending therealong in a single longitudinal direction. The direction in which the reinforcing thread is wound around the rope is reversed at predetermined intervals. A method of forming an unspun yarn, including providing a fibre assembly of substantially untwisted and parallel fibres and reinforcing thread, forming a longitudinal main rope body; intermittently imparting opposing twists to alternate sections of the rope body while drawing the reinforcing thread longitudinally into surface contact with a twisted section of the rope body, allowing the twisted section to engage the adjacent section of the reinforcing thread, releasing the opposing twists of the rope body causing the engaged reinforcing thread to wrap the rope body.

Abstract: The present invention provides a synthetic fiber blend and methods for its use comprising a first fiber component formed of a homopolymer polypropylene fiber and a second fiber component being a copolymer formed of a polypropylene and a high density polyethylene. The first fiber component is fibrillated and the second fiber component is a twisted bundle comprised of multiple strands of a nonfibrillating monofilament. The synthetic fiber blend imparts improved reinforcement properties to the building materials to which they are added. In particular, the synthetic fiber blend when incorporated into a building material provides reduced permeability, increased fatigue strength, improved toughness, and reduced plastic shrinkage. The unique combination of the twisted second fiber component blended with the first fiber component provides improved mixability and uniform distribution of the synthetic fiber blend in cementitious materials.

Abstract: The invention relates to a yarn package provided on a yarn package holder, such as a tube, wherein the yarn is at least partly unstable, such that a variation in the yarn tension results in a rotational movement thereof, characterized in that, the position of the yarn in the yarn package is controlled by the direction of the rotation of the yarn.

Abstract: An apparatus for manufacturing stranded cables from strand elements with alternating twist directions (SZ stranding). One or more storage disks can be disposed between a guide that receives the strand elements and a stranding disk. The stranding disk and the storage disks can be driven in alternating directions. At least one torsion element drives the storage disks with a respective rotation speed that decreases with increasing distance between the storage disks and the stranding disk. The torsion element can be driven at several locations with a different rotation speed.

Abstract: A yarn is produced which consists substantially of twisting filaments which are wrapped sequentially upon each other helically upon the yarn in layers, wherein the helically wound filaments preferably are wound right to left and then left to right alternatively to balance the yarn, wherein optionally a glue is applied to one of the filaments to maximize the performance of the yarn in producing paper.

Abstract: After a wide-band DCF is wound around a bobbin to form an optical fiber coil 32, the latter is removed from the bobbin and placed into a bundle state (the state where the increase in transmission loss in the wavelength band of 1.55 &mgr;m caused by distortions in winding is reduced by 0.1 dB/km or more) released from distortions in winding. A resin 42 is used as a coil-tidying member so as to secure the optical fiber coil 32 to a storage case 40 at four positions. Both ends of the optical fiber coil 32 are connected to pigtail fibers at fusion-splicing parts 44; respectively. Even when the storage case 40 is closed with a lid after the optical fiber coil 32 is secured to the storage case 40 with the resin 42, there remain interstices within the bundle of the optical fiber coil 32 and a space between the optical fiber coil 32 and the storage case 40. As a result, even when the optical fiber coil 32 in a bundle state is accommodated in the storage case 40, transmission loss and the like would not increase.

Abstract: The invention comprises a multi-ribbed belt having a tensile cord. The tensile cord having areas of opposite twist along a length of a single cord. In particular, a tensile cord comprises S twist sections and Z twist sections. An S twist section is separated from a Z twist section by a node, thereby creating alternate S twist and Z twist sections along a length of a tensile cord. Therefore, the inventive belt comprises a belt having a tensile cord having a random distribution of S twist sections and Z twist sections along a length of the belt as well as across a width of the belt. This significantly reduces tracking force while using only a single cord in belt construction.

Abstract: An airbag base fabric is formed of thermoplastic synthetic filament yarns, wherein the yarn strength of the filament yarn is 7.0 g/denier or more and the fineness of the filament yarn is 200-250 denier. The fabric is thin and lightweight, which is thus excellent in accommodation, and is effective in reducing the size and weight of an airbag module.

Abstract: A reinforcing steel cord for rubber products, such as steel belted radial tires or conveyor belts, is disclosed. This steel cord is improved in rubber penetration and ageing adhesive force relative to the rubber material. The steel cord is formed by twisting a plurality of brass coated external element wires around a flat and spirally twisted core, with the twisted direction of the core being the same as or opposite to that of the resulting steel cord. In the steel cord, the pitch of the twisted core is set to allow the core to be twisted 0.2 to 2 times within the pitch of the cord, thus preferably forming sufficient interspaces between the core and the external wires in addition to the interspaces between the external wires.

Abstract: A synthetic fiber rope having load-bearing aramide fiber strands laid together in parallel in concentric layers of strands and an intersheath with sheath surfaces adapted to the external contours of the adjacent layers of strands. By positively bonding the inner and outer layers of strands a higher torsional rigidity is achieved as well as a rope structure of the stranded rope which is less susceptible to twisting. Furthermore, the elastic intersheath between the layers of stands serves to protect the strands against abrasion and assists in transmitting torque within the rope over a large area.

Abstract: A process and apparatus for making alternate S and Z twist plied yarn from individual singles yarns includes the steps of tensioning the singles yarns as they move in a path through the process, twisting the individual yarns in either an S or Z direction, snubbing the yarn to restrain ply twisting so the twist in the singles yarn can equalize itself, stopping the forward movement of the yarn, then bonding the ply-twisted yarns at a node while applying twist, stopping the twisting operation, then repeating the procedure while twisting in the opposite direction. The ply twisted yarn has a lower defect level of less than 2.5 defects per 100 inch length of yarn.

Abstract: A bow string having a plurality of parallel strands, comprising at least one first strand being twisted in a clockwise manner, and at least one second strand being twisted in a counter clockwise manner, wherein the amount of twists in the second strands are the same as that of the first strands, and wherein the number of first strands approximately equals the number of second strands.

Abstract: A bow string having a plurality of parallel strands, comprising at least one first strand being twisted in a clockwise manner, and at least one second strand being twisted in a counter clockwise manner, wherein the amount of twists in the second strands are the same as that of the first strands, and wherein the number of first strands approximately equals the number of second strands.

Abstract: An alternate twist plied yarn formed from a plurality of strands of singles yarn twisted in alternating directions in lengthwise intervals of first half-cycles of twist at a predetermined twist level followed by second half-cycles of twist at the same twist level with reversal nodes therebetween, the singles twisted yarns being ply-twisted together in alternating directions in lengthwise intervals of first half-cycles of ply-twist followed by second half-cycles of ply-twist, there being a bond formed adjacent each node wherein the first half-cycle of ply-twist is located within the bond and the second half-cycle of ply-twist originates at one end of the bond, the twist level in the singles twisted yarn is between 25% in the same direction and 60% in the opposite direction of the twist applied to the singles yarns before plying.

Abstract: A method of manufacturing an anchor element for a soil anchor or rock anchor, rock bolt or the like, from a strand of twisted steel wire. The anchor element includes a central wire and outer wires arranged radially relative to the central wire. The anchor element has at least one expanded section obtained by spreading the individual wires. Spacer members are provided for fixing the individual wires in the spread-apart position. The central wire is laterally deflected when the individual wires of the strand are being spread and, by inserting a rod-shaped spacer element, the central wire is fixed in an out of center position together with at least one outer wire.

Abstract: A process and apparatus for making alternate S and Z twist plied yarn from individual singles yarns includes the steps of tensioning the singles yarns as they move in a path through the process, twisting the individual yarns in either an S or Z direction, snubbing the yarn to restrain ply twisting so the twist in the singles yarn can equalize itself, stopping the forward movement of the yarn, then bonding the ply-twisted yarns at a node while applying twist, stopping the twisting operation, then repeating the procedure while twisting in the opposite direction. The ply twisted yarn has a lower defect level of less than 2.5 defects per 100 inch length of yarn.

Abstract: An alternate twist plied yarn formed from a plurality of strands of singles yarn twisted in alternating directions in lengthwise intervals of first half-cycles of twist at a predetermined twist level followed by second half-cycles of twist at the same twist level with reversal nodes therebetween, the singles twisted yarns being ply-twisted together in alternating directions in lengthwise intervals of first half-cycles of ply-twist followed by second half-cycles of ply-twist, there being a bond formed adjacent each node wherein the first half-cycle of ply-twist is located within the bond and the second half-cycle of ply-twist originates at one end of the bond, the twist level in the singles twisted yarn is between 25% in the same direction and 60% in the opposite direction of the twist applied to the singles yarns before plying.

Abstract: A loose tube optical fiber cable with SZ stranding in which the units receive two or more laminated multicase ribbons stranded toward a central member with the stranding direction reversed at specific intervals. These multicase ribbons are twisted in the same direction as the stranding of the tube units, and a reverse stranding angle of the tube units is selected to be a value within a specific scope.

Abstract: A fiber cord having a plurality of fiber filaments twisted together in a first direction to produce strand yarns with a primary twist and a first twist coefficient, with a plurality of the strand yarns being in turn aligned and twisted together in a second twist direction opposite to the first twist direction to produce a fiber cord with a final twist and a second twist coefficient. The second twist coefficient is between 4.0 and 7.0 and the ratio of the second twist coefficient to the first twist coefficient is at least 1.25.

Abstract: A system for bonding alternate S and Z twist plied yarn. The system bonds the plied yarns as they move in a path through the process and permits balanced expansion of the yarn while preventing lateral movement out of the path. The bonding of the yarn strands while plied together, forms a bond characterized by a dense region of filaments adhesively joined together where one of the strands overlaps another strand, followed by a less dense region along the one strand where fewer filaments are adhesively joined, followed by another dense region.

Abstract: A braided suture possesses a cable core which resists any tendency to protrude through the surrounding braid structure.

Abstract: Composite flexible multilayer insulation systems (MLI) were evaluated for thermal performance and compared with currently used fibrous silica (baseline) insulation system. The systems described are multilayer insulations consisting of alternating layers of metal foil and scrim ceramic cloth or vacuum metallized polymeric films quilted together using ceramic thread. A silicon carbide thread for use in the quilting and the method of making it are also described. These systems are useful to provide lightweight thermal insulation for a variety of uses, particularly on the surface of aerospace vehicles subject to very high temperatures during flight.

Abstract: The invention relates to a novel type of polyolefine yarns with good performance in the manufacture of rugs and carpets, made-up by admixing polypropylene filaments with polyethylene filaments, and by subjecting said filaments mixture to a temperature of from 125.degree. C. up to 130.degree. C., which substantially equals the melting temperature of the polyethylene filaments, whereby said polyethylene filaments become melted while the polypropylene filaments, with higher melting point, remain solid and stable, and with said melting of the polyethylene filaments constituting welding points for said polypropylene filaments, bulking and shaping the resulting yarn.

Abstract: A reverse stranding apparatus for the reverse stranding of conductors. The apparatus comprises a stationary divider plate, a twisting plate rotatable in different directions, and a central element disposed between the parts, and peripheral tubes surrounding the central element, the central element and the peripheral tubes being pressed against each other at least during the twisting step of the conductors, and the conductors to be stranded being adapted to pass through at least the peripheral tubes. To allow high speeds of rotation, the peripheral tubes are connected substantially for their entire length to the central element by a substantially radial part.

Abstract: An elongated cylindrical tensile article of one or more strands of monofilament core surrounded by porous polytetrafluoroethylene (PTFE) which may be optionally coated or die sized on the outer surface for smoothness and/or abrasion resistance. The core filaments thereof may optionally be coated with high-temperature resistant adhesive for increased adherence to the PTFE. The article is particularly useful for fly-casting lines for fishing. The density may be controlled to produce a floating or sinking flyline or portion thereof.

Abstract: A rubber article having a fiber reinforcement embedded therein. The reinforcement comprises a cylindrically braided cord of an even number of twisted yarns of four or more, an equal number having an twist, i.e. twisted to the right, and a Z-twist, i.e. twisted to the left. The angle difference between a first twisting angle of a yarn and a final twisting angle of the cylindrically braided cord is set at less than 10.degree..

Abstract: A rubber having fiber reinforcement embedded thereon. The reinforcement comprises a cylindrically braided cords of more than four and even numbered twisted yarns. Yarns are right twist oriented and left twist oriented and they are twisted in the reverse direction in an, S-twist and a Z-twist.

Abstract: A method and apparatus for stranding with changing lay directions (SZ-stranding) utilizes an elongated cylindrical member which is driven with changing rotational sense on which the conductors are wrapped and supplied to a stranding disk at one end. The cylindrical member serves the purpose of stranding and is held under an axial tensile stress at its ends during the stranding process. The cylindrical member is also twisted to provide a torsional stress.

Abstract: An underwater cable has a flexible, elongated core surrounded by a flexible, elongated jacket. A distributed jacket includes a helically displaced phase shifter to decouple the cable from strumming produced by shedding of von Karman vortex streets from the cable.

Abstract: An alternate S and Z twist plied yarn made from individual singles yarns. The apparatus twists the singles yarns as they move in a path through the process, twisting the individual yarns in either an S or Z direction. The bonding of the ply-twisted yarns at a node while applying twist forms a bond characterized by numerous individual spaced bond sites between individual filaments that are distributed throughout the bond.

Abstract: A glass matrix/ceramic fiber reinforcement composite is prepared from a yarn formed by spinning glass fiber and ceramic fibers lengths together, to form a bicomponent yarn. The yarn is weavable and spinnable, and accordingly may be prepared in fabric forms, or in windings, of predetermined shape. The precursor is melted by heating to the temperature of the melting point of glass, which fused the glass into a continuous matrix, surrounding the ceramic reinforcement.

Abstract: A randomly entangled, plied yarn having a first yarn strand and a second yarn strand wherein at least one of the first yarn strand or the second yarn strand is unidirectionally twisted in a first direction of twist, the plied yarn having spaced-apart spliced zones along its length defining therebetween lengths of unspliced yarn having a ply twist in the opposite direction of the twist of the component yarn strands along the entire length of the plied yarn.

Abstract: The invention relates to a method for producing a towel, specifically a low twist towel, comprising the following steps: Z twisting a thick yarn and separately Z twisting a fine count yarn; unevenly S twisting the Z-twisted yarns to make the volume of the thick yarn more than that of the fine count; weaving the yarn to produce a fabric; processing the fabric with hot water to reduce inner tension in the yarn and make the fabric become fluffy. Fabric produced by this method can solve the dependency on PVA, reduce energy consumption and material consumption, and prevent water pollution. This method for producing a low twist towel is environmentally friendly, healthy, and energy saving.