Abstract: A system and method for automated control and improvement of the consistency of yarn texture in a yarn system. The system and method are configured to monitor, improve and/or control the operating conditions of the yarn system. A plurality of sensors sense the operating conditions and send the sensed conditions to a processor. The processor monitoring the system can cause adjustments to the operating conditions to be made if a condition is outside of a predetermined tolerance.

Abstract: The invention relates to methods for simultaneously producing crimped fiber strips in parallel, in particular filter tow strips, in a crimping machine (KM) having an inlet region (3), a squeezing zone (6) formed between two transport rollers (4, 5), and a compression channel (7), comprising the following steps: a) simultaneously feeding in parallel a plurality of fiber strips (1, 2) via the inlet region (3), wherein the fiber strips are guided separately in the inlet region (3), using a first separating device (31), b) simultaneously transporting and compacting in parallel the fiber strips in the squeezing zone (6) by way of the two transport rollers (4, 5), and c) simultaneously crimping in parallel the fiber strips in the compression channel (7), wherein the fiber strips are guided separately in method step b) by using a second separating device (61) and in method step c) by using a third separating device (71), and wherein the first, second and third separating devices (31, 61, 71) are designed such that t

Abstract: A system and method for controlling and improving the consistency of yarn texture in a yarn system. The system and method are configured to monitor, improve and/or control the operating parameters of the yarn system. A plurality of sensors sense the operating conditions and send the sensed conditions to a processor. The processor and/or a user monitoring the system can make adjustments to the operating parameters in a parameter is outside of a predetermined tolerance.

Abstract: A method and an apparatus for stuffer box crimping a multifilament yarn, wherein the yarn is conveyed into a crimping device in two steps. In the first step, the yarn is taken in by a conveying fluid stream of a first feed nozzle at a yarn intake speed. In the second step the yarn is advanced by a conveying fluid stream of a second feed nozzle at a second yarn conveying speed into the crimping device. In this process, the second yarn conveying speed is at least the same as or greater than the intake speed.

Abstract: A yarn guiding and texturizing apparatus and methods are provided. The apparatus preferably includes a yarn supply positioned to supply a plurality of yarn strands and a yarn guide positioned downstream from the yarn supply to receive the plurality of yarn strands in a position substantially parallel and spaced-apart from each other and to guide the plurality of yarns downstream along a path of travel. The apparatus also preferably includes a plurality of draw rolls positioned downstream from and adjacent the yarn guide for drawing the plurality of yarn strands from the yarn supply and through the yarn guide, a yarn stuffer box positioned downstream from and adjacent the plurality of draw rolls to receive the plurality of yarn strands therein and to texturize the plurality of yarn strands, and a conveyor positioned downstream from the stuffer box to receive the plurality of texturized yarn strands thereon and to convey the texturized yarn therefrom.

Abstract: An apparatus and methods for handling and texturing yarn are provided. The apparatus preferably includes a yarn supply positioned to supply a plurality of strands of yarn, a false twister positioned downstream from the yarn supply for imparting a false twist to the plurality of strands of yarn, a yarn undulation former positioned downstream from the false twister for forming undulations in each of the plurality of strands of yarn, and a conveyor positioned to receive the plurality of yarn strands having undulations formed therein and for conveying the undulated strands of yarn downstream.

Abstract: An apparatus and methods for handling and texturing yarn are provided. The apparatus preferably includes a yarn supply positioned to supply a plurality of strands of yarn, a false twister positioned downstream from the yarn supply for imparting a false twist to the plurality of strands of yarn, a yarn undulation former positioned downstream from the false twister for forming undulations in each of the plurality of strands of yarn, and a conveyor positioned to receive the plurality of yarn strands having undulations formed therein and for conveying the undulated strands of yarn downstream.

Abstract: An apparatus for the production of a multiple width fiber strip consisting of crimped interlaced filaments and having several zones extending in longitudinal direction of the fiber strip as well as at least one predetermined tear line (4) extending in longitudinal direction of the fiber strip, wherein the tear strength (daN) of the fiber strip, referred to the total denier (dtex) is at least about 1.7.times.10.sup.-4 daN/dtex, has a pair of transport rolls (8,9) for jointly transporting the supplied bands (1,2) and a crimping chamber (10.1, 10.1, 11, 12, 13, 14) which is arranged downstream of the pair of transport rolls (8, 9).

Abstract: In a crimping process in a crimping machine therefor, a compression force on an extended length of a transiting fiber bundle is exerted by and between means for maintaining a continuous and forced contact. The means for maintaining a continuous and forced contact comprise two closed belts, each of which runs around two motorized rollers travelling at a same velocity as the fiber bundle. Pressurized air or steam is injected into the crimping machine in a same direction as an advancement direction of the fiber bundles, but in an opposite sense thereto.

Abstract: A process and apparatus for guiding a continuous moving tow in synthetic fiber manufacture. The profile (the thickness distribution and width) and the position of the tow are continuously sensed in a non-contact manner and an appropriate electrical signal is generated. This electrical signal is used to control the profile and the position of the tow in such a way that its profile and position stay within predetermined target value ranges. The tow geometry is preferably sensed using a CCD camera, while the tow geometry is controlled using tow-engaging deflecting means. In this way it is possible to optimize tow profile and position, for example for entry into a stuffer box (FIG. 1).

Abstract: A cylindrical guide for varying the width of a bundle of continuous filaments has a surface in contact with the bundle that has an array of nonparallel grooves. The grooves converge until a minimum distance is reached on the guide surface and from thereon diverge to a maximum distance. With this arrangement of grooves it is possible to control the width of the bundle of filaments in a widening or narrowing manner by simply rotating the cylindrical guide one direction or the other until the desired width is reached.

Abstract: In apparatus for compression crimping fibrous material, such as yarn, comprising a chamber for receiving the yarn from a pair of feed rollers and in which chamber the yarn is compressed, the chamber having corners intercepted by the periphery of the rollers adjacent the sides; there are provided guiding ramps adjacent the nip of the rollers to keep the yarn away from the corners as the yarn advances from the rollers into the chamber.