Abstract: The invention provides for a method of delaying and reducing texture reversion of a textured artificial turf yarn (145), characterized by using a stretched and textured monofilament yarn as the textured artificial turf yarn, the stretched and textured monofilament yarn comprising a polymer mixture (400, 500), wherein the polymer mixture is at least a three-phase system, wherein the polymer mixture comprises a first polymer (402), a second polymer (404), and a compatibilizer (406), wherein the first polymer and the second polymer are immiscible, wherein the first polymer forms polymer beads (408) surrounded by the compatibilizer within the second polymer.

Abstract: A dispenser is described for dispensing nanofiber yarns that includes a housing that defines an inlet, an outlet, and a chamber. A spool, around which is wound a length of nanofiber yarn, is disposed within the chamber defined by the housing. The nanofiber yarn is threaded from the chamber through the outlet and can be dispensed in a controlled way that reduces the likelihood of developing knots within the nanofiber yarn, and which facilitates convenient application of the yarn onto an underlying surface. In some cases, the dispenser can be used to concurrently dispense an adhesive or other polymer along with the nanofiber yarn.

Abstract: The invention relates to a textile fabric having a woven fabric, which is made up in whole or in part of flat filament yarns, wherein warp threads and weft threads form the woven fabric and wherein the warp threads and the weft threads are each made of a polymer. The invention provides that the warp threads and the weft threads are spun dyed and are different colors, which produce a varying color of the woven fabric depending upon a viewing angle.

Abstract: A side channel attack resistance evaluation apparatus includes: a measurement section that measures side channel information leaking from an encryption device to be evaluated; a noise removal section that removes noise from the measured side channel information using a band-pass filter (BPF); a passband determination section that determines the passband of the band-pass filter; and a DSCA (Differential Side-Channel Analysis) evaluation section that evaluates resistance against the differential side channel analysis. The passband determination section preferably has a DFT processing section and a power spectrum analysis section, or has a DFT processing and a DFA processing section.

Abstract: Intermittently colored yarns having an intermittent and random dye spacing pattern, and systems and methods of making the same, are disclosed. Such intermittently colored yarns exhibit higher quality and lower manufacturing costs over the known intermittently colored yarns. The intermittent coloring takes place while the yarn is in caterpillar form. Carpets made from such intermittently colored yarns exhibit enhanced aesthetics over carpets made from known intermittently colored yarns. Alternatively, a stain resist, colorless base dye, or bleaching agent can be applied in the same intermittent and random spacing pattern to the intermittently colored yarns prior to subsequent dyeing. This creates a mirror image like color effect to the resulting yarn.

Abstract: The present invention is used for removal of compression sleeves from cylindrical objects. An outer body may have a bore longitudinally therethrough, an exteriorly threaded attachment end, and a second end with an interior wall of the bore threaded adjacent the second end. An inner element may have a bore longitudinally therethrough and may have a threaded end for threadable engagement with the outer body threaded interior wall. A push rod may have a force portion for insertion in the inner element bore and may be attached to the inner element. A push portion of the push rod may be slidably disposed in the outer body bore when the inner element may be threadably engaged in the outer body. The inner element may have a torque portion.

Abstract: A method and apparatus for producing a high-strength and low-shrinkage synthetic flat yarn. After melt spinning, the filaments are combined to a yarn and drawn. Subsequently, the yarn is compressed to form a plug under the influence of heat. This plug is transported over a certain distance, so that the yarn relaxes in a low-tension state and under the influence of the increased temperature. Finally the plug is disentangled under tension to form the flat yarn, which is wound into a package.

Abstract: The invention relates to a compressive crimping device for a synthetic multi-threaded yarn. The thread is compressed by a texturing device to form a tangle of thread. The tangle of thread is subsequently cooled by means of a cooling device and unraveled to form a crimped thread. The tangle of thread runs through a heating area in the transition area between the texturing device and the cooling device, the heating area being essentially defined by the distance between the tangle outlet of the texturing device and a tangle receiving element of the cooling device. According to the invention, a means of adjustment is provided in order to adjust the distance and deflection angle between the tangle outlet and the element receiving the tangle.

Abstract: A nozzle for the treatment of threads is divided in the conveying direction into a conveying part, a compression section and a guiding part. The compression section, for the purpose of forming a yarn plug, includes fixedly arranged radially and axially directed lamellar. The ends of the lamellar which face the guiding part are neither in contact with each other nor with any surrounding parts of the nozzle so that fibers which are located in the gaps between the lamellar, and which radially exit the channel being formed by the lamellar can reach an inlet funnel of the guiding part or a plug guide tube respectively, without colliding with any edges.

Abstract: In a nozzle (10) for the treatment of threads, being divided in conveying direction in a conveying part (14), a compression section (16) and a guiding part (18), the compression section (16), for the purpose of forming a yarn plug, basically comprises fixedly arranged, towards each other radially and axially directed lamellar, whereat the ends of the lamellar (28) which face the guiding part, are neither in contact with each other nor with any surrounding parts of the nozzle (10), so that fibers which are being located in the gaps between the lamellar (28), and which radially exit the channel being formed by the lamellar (28), can reach an inlet funnel (18a) of the guiding part (18) or a plug guide tube (18) respectively, without colliding with any edges.

Abstract: A method and an apparatus for stuffer box crimping a spun multifilament yarn, wherein the yarn is packed in a crimping device to form a yarn plug. After cooling the yarn plug, it is unraveled into a yarn. In so doing, the position of the unraveling point is adjusted by varying the withdrawal speed of the yarn. At the same time when the withdrawal speed is varied, a signal is generated for controlling at least one of the parameters of the crimping device, which influences the formation of the yarn plug, so that it is possible to produce a uniformly crimped yarn.

Abstract: An apparatus and a method of stuffer box crimping a synthetic multifilament yarn, wherein the yarn is advanced in a conveying nozzle by means of a heated conveying gas into a stuffer box and compressed to a yarn plug. At the outlet of the stuffer box, a pair of rolls form a conveying gap for advancing the yarn plug and which has a width smaller than the cross section of the plug leaving the stuffer box so as to compress the yarn plug. The internal passage of the stuffer box is constructed with a cross section that increases in the direction of advance in such a manner that no significant cohesive force develops on the yarn plug, and the resistance to the forward pressure in the yarn plug resulting from the heated conveying gas is provided essentially only by the force on the yarn plug generated by its compression in the conveying gap.

Abstract: A rotatable yarn cooling drum for cooling yarn plugs emanating from two texturizers has a circumferential perforated shell about which the yarn plugs are wound and cooled. A deflector in the form of a finger is spaced radially from the surface of the shell and laterally positioned between the ends of the shell. A yarn guide radially spaced from the drum has two yarn guide grooves for guiding the yarn plugs onto the shell at one side of the deflector and one lateral end of the shell. The yarn plugs may thus enter onto the shell at one lateral end and exit at the other lateral end after making more than a complete turn on the drum. The guide slots are illustrated as formed in a block to which the finger is attached.

Abstract: An apparatus and method for the production of a multicomponent yarn which is composed of several multifilament strands with differing characteristics, such as color. The individual strands are drawn in parallel and simultaneously by a pair of godets following spinning, and then crimped by compression in an air jet crimping device. According to the invention, the individual strands are spread apart from one another prior to run-off from the drawing godet in such a way that the distance in the axial direction between the run-off points of the individual strands on the godet surface is increased. This spreading of the strands assures that the strands do not intermix prior to entering the air jet crimping device.

Abstract: A device for texturizing continuous filament threads including plates in a crimping part which have a prolongation at both ends thereof, with the prolongation being located centrically-symmetrically, however offset, relative to each other and have rounded end faces thus permitting reversing the plates upon wear of one end face thereof, thus increasing their service life.

Abstract: A layered yarn package is formed of continuous filament yarn wads wherein the yarn alternates between compacted an extended lengths by axially compacting the yarn into a length, segmenting the length into alternating extended and compacted lengths then arranging the compacted lengths in a common axial direction one next to the other to form a layer. The layer may be compressed. One or more layers may form the package.

Abstract: The nozzle comprises a plurality of parts which define between them a thread-treating passage and which are movable relative to each other for opening and closing the thread-treating passage to enable insertion of a thread. The thread-treating nozzle preferably comprises only two nozzle parts movable relative to each other. One nozzle part comprises a plate-like element which is elastic when subjected to the degree of deformation required to permit adjustment thereof to make face-to-face sealing contact. Mechanical elements capable of effecting uniform face-to-face sealing contact press the two nozzle parts together in the closed state. Examples of such mechanical elements are levers and springs.

Abstract: A texturizing jet for synthetic filaments is openable and closable to facilitate lacing up. A lacing up system is operable in conjunction with the opening and closing mechanism so that the lace-up operation is semi-automatic. At least one of the parts of the jet has a flexible mounting to ensure face to face sealing contact of the parts when the jet is closed.

Abstract: A layered yarn package is formed of continuous filament yarn wads wherein the yarn alternates between compacted and extended lengths by axially compacting the yarn into a length, segmenting the length into alternating extended and compacted lengths then arranging the compacted lengths in a common axial direction one next to the other to form a layer. The layer may be compressed. One or more layers may form the package.

Abstract: A compressing chamber (7) for directed crimping consists of step-shaped bars (8) by way of increasing outwards in length.

Abstract: A process and apparatus for crimping yarn wherein the yarn is introduced to the crimping chamber by means of an injector supplied with steam under constant pressure. The position of the wad in the crimping chamber is controlled by the position of discharge regulation means in response to the fluid pressure above the wad to maintain a space above the wad.

Abstract: Filament cables are crimped and the crimp cake of the filament cable obtained is passed over a gas permeable screen plate while gas flows to the bottom of the cake from flow through the screen plate so that the cake can be moved over the plate without making contact therewith or with reduced contact force and can be treated during its residence over the screen plate.

Abstract: An apparatus for texturizing endless filament threads comprises a thread infeed portion, a treatment portion and a crimping portion. The crimping portion is structured as a so-called slotted nozzle provided with lamellae arranged in a star-shaped array. The lamellae are insertably held at their upper ends and at extensions provided at their lower ends in substantially half-circular-shaped insert members provided with slots. The upper insert members are firmly received in a separable connector element and the lower insert members in a separable mouth portion. Furthermore, in accordance with the invention, the insert members possess cleaning grooves which in the opened condition, i.e. the separated condition of the connector element or mouth portion, as the case may be, can be cleaned, for example by utilization of compressed or pressure air, to enable removal of dirt or other contaminants from the slot base of the insert members.

Abstract: A yarn texturizing nozzle is disclosed which has two confronting sections that are separable along a separating plane projecting through and longitudinally of a yarn duct that extends through the nozzle and that is supplied with a pressurized fluid such as hot air. A piston within a cavity of one of the nozzle sections is biased by the pressure of fluid within such cavity into abutting engagement with the confronting surface of the other of the nozzle sections. The piston is so designed as to deform, under the force of such engagement, sufficiently as to conform to any unevenness of the confronting surface of the other nozzle section, and so as to minimize fluid leakage at the interface of the nozzle sections.

Abstract: An improved process for preparing fiber rods useful as cigarette filter tips comprises feeding a synthetic fiber tow through an air jet bulker directly into the garniture of a conventional cigarette filter making apparatus. The process allows production of filters with lower denier tow than has heretofore been possible while affording to the manufacturer greater versatility to change filter characteristics more readily.

Abstract: A yarn texturizing nozzle and method of thread-up of the nozzle are disclosed, and wherein the temperature of the nozzle remains substantially unchanged during yarn thread-up. The nozzle includes a body member having a yarn passageway extending therethrough, and the passageway is adapted to be laterally opened to permit the lateral insertion of the yarn during thread-up. Means are provided for supplying a heated treatment fluid such as air to the passageway, and control means are provided for maintaining the mass flow rate of the air substantially the same during yarn thread-up as when the passageway is closed during normal yarn processing.

Abstract: An arrangement for texturizing continuous filament threads using a heated flowing medium comprises a housing which includes a feeding portion, a treatment portion and a crimping portion. The crimping portion includes a stuffing chamber in which the threads are longitudinally compressed to produce crimping of such threads. The crimping portion has openings through which the medium fed into the stuffing chamber with the threads can escape from the stuffing chamber. The crimping portion accommodates a plurality of lamellae which are arranged in a star-like configuration and jointly bound the stuffing chamber. A jet introduces a gas stream into the stuffing chamber in a direction which differs from the direction of advancement of the threads through the stuffing chamber, the gas stream penetrating between the lamellae into the stuffing chamber. At the commencement of the crimping operation, this gas stream causes initial retardation of the continuous thread passing through the stuffing chamber.

Abstract: A yarn texturing nozzle is disclosed which comprises a rigid yarn feeding inlet portion wherein a yarn is subjected to a heated and pressurized treatment fluid to heat the yarn and also advance the yarn therethrough. The nozzle also includes a stuffer box comprising a thin walled tube which is located downstream of the inlet portion. The inlet portion comprises a block-like casing having a cylindrical bore extending therethrough, and a guide cylinder which is rotatably mounted in the bore and which includes a central yarn passageway. The casing and guide cylinder of the inlet portion include yarn thread-up slots which may be aligned by rotation of the guide cylinder to a thread-up position, and the guide cylinder may then be rotated to an operating position wherein the slots are non-aligned.

Abstract: A yarn texturing nozzle is disclosed which comprises a yarn feeding inlet portion wherein a yarn is subjected to a heated and pressurized treatment fluid to heat the yarn and also advance the yarn therethrough. The nozzle also includes a stuffer box located downstream of the inlet portion. The inlet portion comprises a rectangular block which is divided into two parts along a plane extending coaxially through the yarn passageway to facilitate yarn threadup, and the stuffer box includes a slot through the side wall thereof which further facilitates yarn threadup.

Abstract: An apparatus for texturizing threads of endless filaments comprising a thread infeed portion, a treatment portion and a texturizing portion. The texturizing portion is provided with lamellae forming a so-called slotted nozzle. The lamellae are arranged in a substantially star-shaped or spoke-like configuration. According to the invention, these lamellae are rounded and polished on their inwardly directed lamellae faces or ends to provide optimum friction conditions between these lamellae faces and the thread to be texturized. The lamellae are removably insertably secured at their upper ends and also by means of extensions or projections provided at their lower ends in respective slots. This removable insertability of the lamellae affords the possibility of rapid exchange of such lamellae.

Abstract: The present invention relates to high speed process and apparatus suitable for the preparation of cigarette filter rods having high tow utilization in terms of pressure drop per unit rod weight without producing substantial tow density variations. In accordance with this invention, it has been discovered that in a process for manufacturing filter elements from opened and deregistered crimped continuous filament tow, wherein said tow is conducted from a mechanical forwarding means through an aspirating jet positioned adjacent a compacting means and wherein means are provided for dissipating aspirating fluid, that filter rod pressure drop and weight variations are reduced by aspirating at low pressures and more specifically, at fluid pressures of not more than about 3 pounds per square inch gauge and by causing the aspirating fluid, at its point of contact with the continuous filament tow, to flow substantially in a direction axial to that of the tow.

Abstract: The invention concerns a method of threading in a thread into a texturing nozzle known as such, and an apparatus for implementing the method. The texturing nozzle is brought from a working position into a threading-in position for threading-in, in which position a treatment chamber provided with slots and located upstream from the outlet opening of the texturing nozzle is subject to a vacuum for sucking in a thread brought to a position in front of the inlet opening of the texturing nozzle.

Abstract: In accordance with the present invention, entrained, dense particulate materials are removed from an elongated body of less dense fibrous materials being transported by a moving fluid stream by reducing the velocity of said fluid stream by an amount and for a time sufficient to release a substantial portion of said dense particulate materials, but insufficient to stop the transport of the elongated body of less dense fibrous material by the moving fluid stream.

Abstract: A texturizing nozzle for synthetic filaments is openable and closable to facilitate lacing up. The nozzle comprises a two-part carrier structure with the parts movable towards and away from each other to open and close the nozzle. The thread path through the nozzle is defined by means of insert elements releasably mounted on the carrier structure at least in that region of the path in which the main texturizing step is performed. A thread infeed passage and a (preferably single) fluid infeed passage bring thread and treatment fluid together at a junction location, and a guide passage (which preferably widens in the downstream direction) leads the thread and fluid from the junction location to the texturizing region.

Abstract: In accordance with the present invention, entrained, dense particulate materials are removed from an elongated body of less dense fibrous materials being transported by a moving fluid stream by reducing the velocity of said fluid stream by an amount and for a time sufficient to release a substantial portion of said dense particulate materials, but insufficient to stop the transport of the elongated body of less dense fibrous material by the moving fluid stream.

Abstract: A process for introducing one or more threads into a texturizing nozzle, in which the texturizing nozzle, together with the inlet member, is first brought into a position in which the thread is led transversely past and in the immediate vicinity of the texturizing nozzle, the thread is sucked against the nozzle with the orifice of the inlet member enlarged, immediately after being sucked against the texturizing nozzle the thread is cut beyond the nozzle so that the cut end is sucked back into the nozzle, the suction supply required for the sucking-in is replaced by pressurized fluid texturizing medium, and the cross-section of the inlet orifice of the texturizing device is reduced to a value advantageous for steady state operation.

Abstract: The invention concerns a method of threading in a thread (1) into a texturing nozzle (2) known as such, and an apparatus for implementing the method. The texturing nozzle is brought from a working position (A) into a threading-in position (B) for threading-in, in which position a treatment chamber (13) provided with slots (12) and located upstream from the outlet opening (14) of the texturing nozzle is subject to a vacuum for sucking in a thread brought to a position in front of the inlet opening (44) of the texturing nozzle.The apparatus for implementing the method comprises a duct (19, 32, 32a, 41, 41a), which can be tilted open, for taking up substantially sealingly against the surrounding atmosphere the treatment chamber (13) of the texturing nozzle (2) provided with slots (12), as well as for taking up a suction device (18, 40) sucking the thread (1) through the texturing nozzle (2).

Abstract: A method and apparatus for producing texturized multifilament yarn or the like which includes a control arrangement for controlling the length of a yarn plug in a bulking chamber and accumulating tube so that the processed yarn can be removed at a constant speed by a yarn take-up unit.

Abstract: The temperature of a heating fluid used in a yarn crimping zone is controlled in response to whether a yarn plug is detected at a predetermined point, and in another embodiment a fluid is heated, passed to a yarn heating zone and a yarn is heated in the zone in response to whether the yarn is being wound in a yarn winding zone.

Abstract: A method for introducing yarn into a pneumatic yarn texturizing means, in which the yarn is positioned across the inlet orifice of the texturizing means, a stream of fluid is forced against the yarn to introduce it into the orifice in the form of a loop and a yarn cutting device, located downstream of the orifice in the direction of movement of the yarn, is actuated, its operation being synchronized with that of the fluid stream.

Abstract: A process for introducing one or more threads into a texturizing nozzle, in which the texturizing nozzle, together with the inlet member, is first brought into a position in which the thread is led transversely past and in the immediate vicinity of the texturizing nozzle, the thread is sucked against the nozzle with the orifice of the inlet member enlarged, immediately after being sucked against the texturizing nozzle the thread is cut beyond the nozzle so that the cut end is sucked back into the nozzle, the suction supply required for the sucking-in is replaced by pressurized fluid texturizing medium, and the cross-section of the inlet orifice of the texturizing device is reduced to a value advantageous for steady state operation.

Abstract: Thermoplastic yarn is texturized by the known method of forwarding it in a heated condition to a crimping zone at the entrance of a stuffer chamber (7) so as to form a plug (8) of crimped yarn within the chamber and withdrawing the yarn from the other end of the plug at a speed which is related to the input speed. The improvement comprises deriving signals from the speed of the yarn plug (8) in the stuffer chamber (7) by means of a sensing wheel (11) which drives a gapped monitoring disc (13). The disc (13) operates to intercept a beam of light from a source (14) which is directed on to a photo-sensor (15). The output of the photo-sensor is supplied to an electrical controller (36) which measures the time during which light is received for each gap in the disc (13) to provide a measure of the speed of the yarn plug.

Abstract: An apparatus for controlling the tension on yarn withdrawn from a mass of compacted yarn within a confined space has a yarn guide element with a tubular wall portion defining a confined space for guiding and for accumulating a compacted mass of yarn, an inlet opening for entry of the compacted yarn mass into one end of the confined space and an outlet opening for allowing withdrawal of the yarn as a yarn bundle from the confined space. The outlet opening is an elongated slot that is provided in the wall portion of the yarn guide element and that applies tension to the yarn bundle withdrawn from the confined space. The slot has a preselected configuration so that the slot will vary the tension applied to the yarn bundle as the yarn mass moves from one end of the confined space to the other end.

Abstract: This invention relates to method and apparatus to intermittently apply a treating fluid to a wad of yarn in a texturing device comprising intermittently injecting the fluid under pressure into at least one port at the texturing device and impregnating the yarn with the fluid for a period long enough for the fluid to coat, react, or bond with the yarn. Continuous injection can be used for chemically reactive agents, which do not affect yarn coloration.

Abstract: Textile strands are dyed while being bulked or crimped by lengthwise compression. The dyestuff advantageously is supplied in finely divided liquid or preferably solid form and is injected, as by aspiration or by positive pressure methods, into fluid hot enough to vaporize it before such fluid together with such dyestuff comes into contact with strand so treated. Such strand, forwarded with or by flow of hot propellant fluid into a foraminous region in which the strand is confined laterally but from which the fluid may escape except where the strand is compressed into a compact mass, is exposed to the dyestuff by permeation with such fluid. Lateral escape of the propellant fluid is effected, preferably before such exposure, and is utilized to control an operating condition, such as temperature of strand input into and/or speed of removal of strand from the chamber, for improved uniformity of dyeing and bulking or crimping of the strand.

Abstract: A process for texturizing bundles of filaments of synthetic high molecular weight materials at high speed, wherein the filament bundle is passed through a feed nozzle and is then brought into contact with a hot gaseous medium which is undergoing a vortical motion and has acquired a vortex angle of from 10.degree. to 70.degree. as a result of passage through a vortex chamber, is then heated by the fluid medium in a downstream tubular chamber and is subsequently fed to an expansion stage to produce the crimp, and apparatus for carrying out this process.

Abstract: A process for introducing one or more threads into a texturizing nozzle, in which the texturizing nozzle, together with the inlet member, is first brought into a position in which the thread is led transversely past and in the immediate vicinity of the texturizing nozzle, the thread is sucked against the nozzle with the orifice of the inlet member enlarged, immediately after being sucked against the texturizing nozzle the thread is cut beyond the nozzle so that the cut end is sucked back into the nozzle, the suction supply required for the sucking-in is replaced by pressurized fluid texturizing medium, and the cross-section of the inlet orifice of the texturizing device is reduced to a value advantageous for steady state operation.

Abstract: Process and apparatus for controlling a filament pad in the stuffing chamber of a pneumatic crimper and for imparting an improved filament cohesion to the crimped filament yarn within said crimper.

Abstract: A plurality of separate synthetic plastic fibers are advanced through respective discrete guide passages of a housing towards a crimping chamber. The housing is provided with bores for supplying a stream of hot gas into each of the passages to thereby plasticize the fibers. Thereafter, the fibers pass into the crimping chamber, where the gas entering this chamber is withdrawn, so as to crimp the fibers. The housing is provided with another passage, which connects the opposite end of the crimping chamber with the exterior of the housing. This passage receives the fibers in crimped condition and allows them to be wound onto takeup spools individually.

Abstract: A continuous synthetic filament yarn is processed by crimping, entangling, and straightening the yarn. The yarn is straightened by heating under tension, resulting in a yarn that can be used in its straightened form and later bulked by a subsequent process such as dyeing, boiling, heating, etc. The length of a yarn plug formed by crimping is controlled by controlling the temperature of the yarn.