Abstract: The control arrangement is used in conjunction with a textile machine at which a thread or a filament, respectively, supplied from a creel package is guided via a roll, around which it forms a plurality of windings, to a thread guide eyelet and to a ring spindle system. The invention aims at the reliable elimination of any danger of lap-up formation on the roll including the danger of lap-up formation caused by unwinding the thread from a take-up bobbin (unwinding "overhead" from the take-up bobbin). The control arrangement comprises a first thread severing element which severs the thread upstream from the roll, and a second thread severing element which severs the thread along the unwinding path between the roll and the take-up bobbin.

Abstract: Disclosed is an apparatus for producing a bundle of fibrous elements, at least some of which are uneven in the thickness in the axial direction thereof, namely some of which include thick portions having a larger sectional area and thin portion having a smaller sectional area. In these fibrous elements constituting the fibrous bundle, the thick portions have, in general, a higher dyeability than the thin portions, and in the fibrous bundle, these higher dyeability portions are formed substantially randomly at a distribution ratio of at least 300 portions per 10 cm of the length of the fibrous bundle. This fibrous bundle is characterized in that it apparently resembles a fibrous bundle composed of fibrous elements uniform in the thickness and dyeability.

Abstract: Disclosed is process for producing a bundle of fibrous elements, at least some of which are uneven in the thickness in the axial direction thereof, namely some of which include thick portions having a larger sectional area and thin portion having a smaller sectional area. In these fibrous elements constituting the fibrous bundle, the thick portions have, in general, a higher dyeability than the thin portions, and in the fibrous bundle, these higher dyeability portions are formed substantially randomly at a distribution ratio of at least 300 portions per 10 cm of the length of the fibrous bundle. This fibrous bundle is characterized in that it apparently resembles a fibrous bundle composed of fibrous elements uniform in the thickness and dyeability.

Abstract: Method to provide a novel air textured yarn by combining a cold drawn core yarn and a false twisted effect yarn in a fluid tangling zone.

Abstract: A multifilamentary polymeric yarn capable of undergoing false twist texturing is passed through a friction disc aggregate under conditions (as defined) which produce periodic slippage with respect to the friction disc aggregate whereby recurring relatively tightly twisted areas measuring approximately 0.125 to 1.25 inch are substantially maintained along the length of the yarn intermediate recurring textured areas measuring approximately 0.125 to 1.25 inch which include a twist in the opposite direction. The feed yarn may be either partially oriented yarn or a drawn yarn. In a preferred embodiment the feed yarn is a partially oriented polyethylene terephthalate multifilamentary yarn. Unmodified texturing machinery can be employed. The resulting yarn is space textured and may be utilized to form a crepe fabric having highly desirable aesthetic characteristics.

Abstract: The invention relates to a method for the production of synthetic filament yarn having crepe characteristics by simultaneous drawing and falsetwisting of the filament yarn while imparting a twist by means of a falsetwister, as well as--under certain conditions--drawing of the filament yarns to a ratio of at least 1:1.08.

Abstract: Disclosed is a textured composite yarn composed of a first multifilament yarn having a lower extensibility and a second multifilament yarn having a higher extensibility, as well as a process for manufacturing such textured composite yarn. The first multifilament yarn forms a core yarn, while the second multifilament yarn is wrapped at least partially around the core yarn. Some individual filaments of the second multifilament yarn are entangled and interlaced with some filaments of the first multifilament yarn in the boundary region between the core yarn and the wrapping yarn.

Abstract: The invention provides a voluminous, false twist texturized filament yarn having a great number of individual protruding filament ends; the filaments forming the filament yarn being of the same polyester raw material. The strength of such filament yarns must be of from 1.3 and 1.7 cN/dtex at a clamping length of 5 cm, and at a clamping length of 200 cm of less than 75% of the strength at 5 cm of clamping length, at least however of 0.8 cN/dtex, and the unevenness of the yarn must be less than 3 Uster %.These filament yarns can be processed to web-like structures which correspond to webs made from staple fiber yarns obtained by secondary spinning with respect to their textile properties, their handle, drape and appearance, and which furthermore are distinguished by their low pilling.

Abstract: Multifilament feed yarns in drawable state made from fiber-forming polyester are provided which in accordance with the invention can be processed in a combined draw and false twist process to voluminous filament yarns having individual protruding filament ends. The feed yarns must consist at least in part of filaments having a flex abrasion resistance of less than 1500 cycles and a crack index of more than 5. By using suitable spin finishes, the crack index can be varied and thus the hairiness of the voluminous filament yarns manufactured can be adjusted independently from the crimp values and the pilling behavior.

Abstract: A method for soft winding around a bobbin a false twisted yarn, which is delivered from a false twisting zone wherein false twists imparted into a fed yarn and running back therealong are heat set and which is heat treated by a second heater, the false twisted yarn being fed by means of a yarn delivery means to the bobbin in a winding apparatus. The time period wherein the false twisted yarn travels from the yarn delivery means to the bobbin is adjusted at a special value so that a soft wound cheese having a uniform and low apparent density and good shape can be obtained.

Abstract: The present invention provides an improvement in a process for providing a dyed, false twist texturized, fibrous material comprising at least 85 mole percent polyethylene terephthalate which is subject to variations in dye uptake induced by the false twist texturizing treatment conducted on said fibrous material prior to or concurrently with a dyeing process by enhancing the uniformity of dye uptake of the fibrous material. The enhancement in the uniformity of dye uptake is achieved by subjecting the fibrous material, which has been previously oriented but prior to false twist texturizing, to an annealing step at a specifically defined temperature for a specifically defined length of time while controlling the length of the fibrous material in a specifically defined manner.

Abstract: Spun yarn having torqueless latent crimp is draw-textured, producing a drawn textured yarn which is substantially torque-free.

Abstract: Spun yarn-like high bulky textured polyester yarns comprised of two types of polyester multifilament component yarns A and B and having broken filaments, in which textured yarns there is a difference in length between the component yarns A and B, whereby very high bulkiness is imparted thereto. The individual filaments of the component yarn A have a fineness and an intrinsic viscosity less than those of the component yarns B. The spun yarn-like high bulky textured yarns have satisfactory pilling resistance and frosting resistance.The spun yarn-like high bulky textured yarns can be produced by a process comprising doubling two types of undrawn polyester multifilament yarns having different properties through an intertwisting regulative device and simultaneously draw-texturing the doubled undrawn yarns.

Abstract: A polyester yarn composed of a plurality of individual fibrous materials such as endless filaments or fibers. Each of these fibrous material is provided with cross-sectional thicker portions, thinner cross sectional portions and intermediate thickness-size portions randomly distributed along the axial direction thereof in a particular condition of distribution of cross-sections of these fibrous material. The above-mentioned polyester yarn involved a textured yarn applied to a drawn polyester multifilament yarn having the above-mentioned basic condition. To produce the polyester yarn according to the present invention, it is the basic condition that the undrawn polyester multifilament yarn should be drawn under a condition of a drawing ratio below a natural draw ratio of undrawn filaments of said undrawn multifilament yarn and a drawing temperature above a crystallizing initiating temperature of said undrawn filaments.

Abstract: A method for alleviating tight spots in false twist textured yarn includes the steps of feeding a thermoplastic multi-filament yarn to a false twister, imparting a false twist to the yarn in one direction, setting the twist to provide a latent torque in the yarn, and thereafter passing the yarn around a tapered flange of a freely rotatable roller to impart a twist in the yarn of a direction opposite to that of the false twist imparted by the twister and of a magnitude sufficient to alleviate tight spots occurring in the yarn during passage through said false twister.

Abstract: A continuous process is disclosed for producing a heather yarn from a continuous filament polyester feed yarn having a residual draw ratio in the range of from 1.6 to 2.0 and a continuous filament polyamide feed yarn having a residual draw ratio in the range of from 106 to 120 percent of the residual draw ratio of the polyester feed yarn. The process involves the steps of: (1) combining the yarns; (2) false twist texturing and drawing the combined yarns in a draw-texturing zone comprising feed rolls, a heating means, a friction twisting element and draw rolls; (3) randomly entangling the combined and textured yarns together in a jet-intermingling zone formed by an air jet device; and (4) withdrawing the heather yarn so produced.

Abstract: A false twisting machine which includes a frame having racks of thread supply spools on opposite sides with centrally disposed bobbin supporting take-up mechanisms therebetween defining corridors on opposite sides thereof with thread heaters and false twisting members disposed horizontally across the top of the machine, together with thread transport mechanisms for stretching the threads and for advancing the threads vertically upward from the thread supply spools on opposite sides of the machine across the top of the machine in a horizontal path with virtually no deviation therefrom through the heaters and false twisters and then downwardly onto the take-up bobbins for ultimate removal of the wound thread packages from the machine thereby providing a machine of greatly reduced height and capable of easy maintenance.

Abstract: There is described a process for making a texturized polycapronamide yarn erein the yarn is spun at a spinning speed below 1500 metres per minute and then subjected to a drawing and texturizing treatment including drawing, false twisting and heat treatment operations. The process is noted in that no more than two of said operations are carried out concurrently at least when the processing of the yarn is being started and the heat treatment is carried out under temperature conditions such as to set the false twist. There are also described the polycapronamide fibres and yarns texturized and manufactured by carrying out the process.

Abstract: A new method has been invented for introducing texture, crimp, or set twist into synthetic polymer yarns which eliminates the need to heat the yarns prior to the texturing step. It has been found that the heat generated in the drawing step of synthetic yarn manufacturing processes is sufficient to cause a twisted undrawn yarn to retain the twist permanently after being drawn. The mild heat treatment experienced by the fibers is highly uniform and produces textured yarns of exceptional uniformity, especially with respect to dyeability, as compared with textured yarns produced by known art processes.

Abstract: The invention is related to a process for the stretch-texturing of high-molecular weight linear synthetic endless filaments travelling at speeds of 300 to 1200 meters per minute by continuously guiding the filaments through a delivery zone, a heat-fixing zone, a false-twister and a stretching godet. The endless filaments are passed through a stretching zone S 55 to 180 cm long, defined by the distance between the delivery stage and the stretching godet, the distance between the delivery stage and the false-twister inlet amounting to S-X cm and the distance X between the false-twister outlet and the stretching godet being 5 to 30 cm.

Abstract: The invention is related to a process for the production of staple-fibre-like textured continuous filament yarns by interlacing and false-twisting, wherein a partly drawn filament is heat-treated before the texturing process, this filament is subsequently interlaced with a non shrunken filament and both are finally subjected to draw texturing.

Abstract: Polyester yarn is spun at a sufficiently high speed to produce substantial stress-induced crystallinity and low shrinkage. The resulting feed yarn is textured, yielding a textured yarn which dyes considerably deeper than conventional polyester yarns.