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: 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 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 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: A process for the simultaneous texturizing and entangling of filament bundles by treating filament bundles of synthetic, high-molecular weight materials with a heated fluid in two tubular treatment chambers, in which process spatial or periodic irregularities are produced, in the treatment zones, in the flow of fluid and/or filament bundles. Preferably, a certain range of values of a volume mass flow factor is adhered to.