Abstract: A device for texturing a thread-like plastic material in order to form a crimped textile yarn, comprising a texturing unit having at least two texturing channels for forming respective yarn plugs, wherein the texturing channels extend in the texturing unit along respective axes which converge in the direction of the discharge openings. The device preferably also comprises a discharge channel in order to guide the yarn plugs from the texturing channels to a moving conveying surface in a converging manner.

Abstract: A method and an apparatus involves crimping a multifilament thread, wherein the thread which is produced by melt spinning is compressed to a thread plug. The thread plug is cast on the circumference of rotating processing drum for thermal treatment and is wrapped around the circumference of the processing drum with many side-by-side wraparounds. Following that, the thread plug is unravelled in an unravelling area on the circumference of the processing drum into the crimped thread which is pulled of the processing drum. To obtain a continuous and regular unravelling of the thread plug with multiple wraparounds and mutual touching of the wraparounds of the thread plug, the thread is guided at a slant from the unravelling area of the thread plug such that a growing axial space appears between the thread and the thread plug, on the circumference of the processing drum, during increasing wraparounds of the thread on the circumference of the processing drum.

Abstract: A device for maintaining the crimping of textile fibers or filaments during subsequent setting treatment, located in a line for treating filaments by crimping and setting having a crimping machine (1), whereby this device is connected to the outlet of the crimping machine (1) and consists of two perforated conveyor belts (2), between which is fed the plug of textile fibers or filaments (3) coming from the crimping machine (1) and which pass through a setting oven or other setting machine to arrive at a filament uptake area. The device is provided with a member (6) for maintaining the continuity of the pressure on the plug of textile fibers or filaments (3) at the outlet of the crimping machine (1) and during the entire setting operation, whereby this member cooperates with the perforated conveyor belts (2).

Abstract: The invention relates to a method and an apparatus for strengthening a running non-woven web. For this purpose, the non-woven web is penetrated by a plurality of fluid streams. In order to create a surface structure, the fluid streams are generated by a movable nozzle beam, which is guided back and forth at a defined amplitude substantially transversely to the running direction of the non-woven web. In order to obtain enough flexibility and a sufficient volume in the non-woven web in spite of the strengthening effect, the amplitude for moving the fluid streams back and forth is selected in such a way according to the invention that the points of impact created in the non-woven web by adjacent fluid streams do not intersect an imaginary separating line in the running direction. To this avail, the amplitude of the back and forth movement of the nozzle beam is adjusted so as to be smaller than half the distance between two nozzle outlets disposed next to each other in the row.

Abstract: The invention describes a process and an apparatus for the production of highly crimped polymer strips which are suitable for use in artificial turf surfaces, for example for football pitches, hockey pitches, tennis courts or golf courses, and are characterized by a high degree of strength, a large volume and a high elasticity. The texturing of the polymer strips is carried out by means of a stuffer box, wherein the polymer strips are laid on a cooling godet immediately after the stuffer box.

Abstract: In a texturing system with a texturing nozzle and a first drum connected thereto and a further drum, a thread is guided on the outlet side of a texturing nozzle at the circumference of a drum in the form of a strip by friction and at least in part in positive manner, so that the longitudinal speed of the strip at the circumference of the drum corresponds with the circumferential speed of the drum in the area of the guide, whereby, by means of a pressure difference in an air guidance system, the effect is achieved by pressing the strip onto the surface of the drum. Further, the thread is guided in relation to its conveying speed and packing density, by positive and friction guidance under the imposition of air, as far as an outlet point on the first drum, and is transferred onto a second drum, on which the strip is cooled, extended if appropriate, and passed on to further guide or conveying rollers, respectively.

Abstract: In a texturing system with a texturing nozzle and a first drum (22) connected thereto and a further drum (23), a thread is guided on the outlet side of a texturing nozzle (10) at the circumference of a drum (22) in the form of a strip (1?) by friction and at least in part in positive manner, so that the longitudinal speed of the strip (1) at the circumference of the drum (22) corresponds with the circumferential speed of the drum in the area of the guide (220), whereby, by means of a pressure difference in an air guidance system, the effect is achieved by pressing the strip (1?) onto the surface of the drum (22). Further, the thread is guided in relation to its conveying speed and packing density, by positive and friction guidance under the imposition of air, as far as an outlet point on the first drum, and is transfered onto a second drum (23), on which the strip is cooled, extended if appropriate, and passed on to further guide or conveying rollers (22?) respectively.

Abstract: Method and apparatus for texturing thermoplastic threads. In starting the operation of the texturing device, one or several non-textured yarns can be drawn in more easily and more reliably via a drawing-in yarn guide which guides the at least one yarn for the purpose of drawing same into the feed channels of the texturizing nozzle and into the plug channels of the plug feed roller essentially parallel to these channels and at a predetermined distance from each other.

Abstract: A method of predicting changes in caterpillar length of yarn. The process is used in systems wherein yarn is passed through a set of hot rollers to bulk the fibre and is then contacted with an air jet to pull the yarn away from the rollers and impinge it upon a rotating drum. This drum comprises an endless textured screen forming a cylindrical outer surface of the drum and a frame to support the screen. A caterpillar is thereby formed on the screen. Air is then exhausted from the centre of said drum to draw air through the screen and cool the yarn. The yarn is then pulled off of the screen using take-up rollers. The process for predicting a change in yarn caterpillar length comprises a step of measuring during a given time period: the change in temperature of the exhaust air (dT1), the change in temperature of the yarn (dT2) after it is taken up from the drum and the change in tension of the yarn (dF) after it is taken up from the drum.

Abstract: An improved moving cavity yarn texturing device is described. One improved feature is a two stage energy tube which provides for more effective filling of the moving cavity by the yarn. The first stage has a cross section with a major axis an a minor axis. The second stage has a cross section with a major axis and a minor axis whose ratio is less than that of the first stage. A second feature is an improved chamber design which employs a channel having a "V" shaped cross section which eliminates snagging of the yarn by the cavity.

Abstract: For continuously crimping thermoplastic filaments, a filament bundle is blown by a jet nozzle into a stuffing chamber of a texturing wheel to produce a crimped filament bundle in the stuffing chamber. The stuffing chamber has a receiving zone, a treatment zone and a delivery zone. The filament bundle is subjected to a texturing or crimping treatment in the receiving zone and, depending upon the fiber material to pe processed, undergoes a heating or cooling treatment in the treatment zone. The heating or cooling treatment is accomplished by a blowing agent which blows a gaseous medium into the stuffing chamber. At the delivery zone, the crimped filament bundle is taken-off or lifted-out of the stuffing chamber by fiber bundle-lifting means and moved towards a suction drum receiving the filament bundle.

Abstract: An improved moving cavity yarn texturing device is described. One improved feature is a two stage energy tube which provides for more effective filling of the moving cavity by the yarn. The first stage has a cross section with a major axis and a minor axis. The second stage has a cross section with a major axis and a minor axis whose ratio is less than that of the first stage. A second feature is an improved chamber design which employs a channel having a "V" shaped cross section which eliminates snagging of the yarn by the cavity.

Abstract: The present invention discloses a moving multicavity texturing method for simultaneously texturing filaments which are commingled to form a yarn. The yarn readily knits producing a fabric which upon subsequent dyeing and shrinking produces a variable textured fabric similar in appearance to fabrics knit from natural fibers.

Abstract: A method and apparatus for removing fluid and cooling the wad of textured yarn on the barrier screen of a moving cavity texturing jet by deflecting the hot fluid (such as steam) away from the underside of the screen with rotating turbine blades and by drawing ambient air across the screen with a vacuum line under the screen has been discovered.

Abstract: The present invention discloses a moving multicavity texturing apparatus for simultaneously texturing filaments which are commingled to form a yarn. The yarn readily knits producing a fabric which upon subsequent dyeing and shrinking produces a variable textured fabric similar in appearance to fabrics knit from natural fibers.

Abstract: A method is described for monitoring and controlling the texture level of a yarn produced in a moving cavity texturing apparatus. The texture level of the yarn is controlled by monitoring fluid pressure in the cavity. The pressure is used as a feedback signal for control of the texture level of the yarn.

Abstract: Continuous filaments are fed into a heating zone. The filaments are then contacted with a stream of heated fluid to increase the temperature of the filaments. The stream of fluid containing the filaments is directed into contact with a barrier disposed within a chamber at a force sufficient to initiate crimping of the filaments. A major portion of the fluid is separated from the filaments and expelled from the chamber. The filaments are transported through the chamber by continuous movement of a surface therein at sufficient velocity to cause overfeeding of the filaments, whereby the filaments are forced against a mass thereof producing crimps therein. One or more streams of heated fluid are then contacted with the mass of filaments to set the crimps. The crimped filaments emerge from the chamber through an outlet opening therein.

Abstract: The device for the storing of filamentary material contains a thread storage and a feed nozzle associated with it, the thread storage having a thread carrier which rotates past the feed nozzle and the feed nozzle being arranged fixed in position and rigid; and the depositing of the thread (S.sub.1, S.sub.2, S.sub.3) on the thread carrier takes place in the form of thread packages (P.sub.1, P.sub.2, P.sub.3) which consist of partially superimposed turns so that the length of the thread package (P.sub.1, P.sub.2, P.sub.3) and thus of the entire storage can be kept small, so that the storage is particularly suitable for looms, especially when using so-called mixers. The thread carrier is preferably covered by a small plate at the point of the formation of the thread packages, and the thread packages are deposited in the space between the thread carrier and the plate.

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: A process for making yarns bulked in a hot fluid jet more uniform in bulk comprises cooling the hot and bulked yarn on a moving screen with a water mist followed by passing the wet yarn under a tension of 0.01-0.05 gpd through a turbulent forwarding jet of steam and then through a cooling stream of air which impinges perpendicularly on the yarn while the yarn is moving under slightly greater tension of about 0.02-0.15 gpd and then wound up under normal packaging tension.

Abstract: A two-piece yarn bulking jet is automatically opened and closed for yarn stringup by means of a pneumatically operated piston connected to a rod which in turn passes through the jet body and is attached to the jet cover. The piston is powered by the same pressurized fluid supply used to supply the bulking fluid to the jet apparatus.

Abstract: Continuous filaments are fed into a heating zone. The filaments are then contacted with a stream of heated fluid to increase the temperature of the filaments. The stream of fluid containing the filaments is directed into contact with a barrier disposed within a chamber at a force sufficient to initiate crimping of the filaments. A major portion of the fluid is separated from the filaments and expelled from the chamber. The filaments are transported through the chamber by continuous movement of a surface therein at sufficient velocity to cause overfeeding of the filaments, whereby the filaments are forced against a mass thereof producing crimps therein. One or more streams of heated fluid are then contacted with the mass of filaments to set the crimps. The crimped filaments emerge from the chamber through an outlet opening therein.

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: Continuous filaments are fed by aspiration into a stream of heated fluid in a conduit. The filaments are then contacted with at least a second stream of heated fluid in a second conduit of increased cross-sectional area to increase the temperature of the filaments. The combined streams of fluid containing the filaments are transferred to an energy tube having an angular disposition relative to a barrier disposed within a chamber and are directed by said energy tube into contact with said barrier at a force sufficient to initiate crimping of the filaments. A major portion of the fluid is separated from the filaments and expelled from the chamber. The filaments are transported through the chamber by continuous movement of a surface therein at sufficient velocity to cause overfeeding of the filaments, whereby the filaments are forced against a mass thereof and emerge from the chamber in crimped form.

Abstract: Continuous filaments are fed by aspiration into a stream of heated fluid. The filaments are then contacted with at least a second stream of heated fluid to increase the temperature of the filaments. The combined streams of fluid containing the filaments are directed into contact with a barrier disposed within a chamber at a force sufficient to initiate crimping of the filaments. A major portion of the fluid is separated from the filaments and expelled from the chamber. The filaments are transported through the chamber by continuous movement of a surface therein at sufficient velocity to cause overfeeding of the filaments, whereby the filaments are forced against a mass thereof producing crimps therein. One or more streams of heated fluid are then contacted with the mass of filaments to set the crimps. The crimped filaments emerge from the chamber through an outlet opening therein.

Abstract: A yarn treating jet is modified to include a freely rotatable cylinder at the outlet end of the jet and a deflector positioned above the cylinder to divert air from the yarn path which passes below and partially around the cylinder. The cylinder is positioned such that air impinging on the cylinder causes it to rotate in a direction counter to the yarn traveling around the cylinder.

Abstract: A process is disclosed for preparing slubby strands in which a textile strand is passed either over a surface or through a slubbing tool. The surface, if employed, may include a plurality of fluid passages positioned therein. As the strand passes over the surface or through the slubbing tool, high pressure fluid is introduced onto the surface of and through the strand. The high pressure fluid passes through the strand. This passage of fluid through the strand causes the strand to twist and bulk along its length to form a slub which is rapidly removed from the working surface of the slubbing surface or tool as a consolidated slub positioned on the strand. When a surface is employed, the surface may be a moving surface and when the surface includes a plurality of fluid passages, the passages may be vented at a point below the surface. Various apparatus for carrying out the novel method are disclosed as is the novel strand produced thereby.

Abstract: Method and apparatus for making a nonwoven fabric wherein a first group of filaments are projected in a longitudinal direction into the nip of a pair of nipped and moving collecting surfaces in such a manner that the filaments fold into and are captured and held by the nip with spans of the filaments lying in the plane of the nip and at the same time projecting a second group of filaments in a longitudinal direction toward one of the collecting surfaces at a location spaced from the nip. The second group of filaments impinges on an impact plate positioned above the collecting surface and is pulled off the impact plate by the moving collecting surface, this causing the filaments in the second group to extend primarily in the machine direction. The moving collecting surfaces carry the groups of filaments into contact with each other to form a nonwoven fabric which is subsequently bonded in a conventional manner to form a finished fabric.

Abstract: Method and apparatus for making a nonwoven fabric wherein a first group of filaments are projected in a longitudinal direction into the nip of a pair of nipped and moving collecting surfaces in such a manner that the filaments fold into and are captured and held by the nip with spans of the filaments lying in the plane of the nip and at the same time projecting a second group of filaments in a longitudinal direction toward one of the collecting surfaces at a location spaced from the nip. The second group of filaments impinges on an impact plate positioned above the collecting surface and is pulled off the impact plate by the moving collecting surface, this causing the filaments in the second group to extend primarily in the machine direction. The moving collecting surfaces carry the groups of filaments into contact with each other to form a nonwoven fabric which is subsequently bonded in a conventional manner to form a finished fabric.

Abstract: A tow of continuous filaments is fed by aspiration into a stream of compressible fluid. The stream containing the filaments is directed into contact with a barrier disposed within a chamber at a force sufficient to initiate crimping of the filaments. A major portion of the compressible fluid is separated from the filaments and expelled from the chamber. The filaments are transported through the chamber by continuous movement of a surface therein at sufficient velocity to cause overfeeding of the filaments, whereby the filaments are forced against a mass of the tow and emerge from the chamber in crimped form.