Apparatus and process for air texturizing of yarns

Abstract

Abstract A jet texturizing or twisting apparatus having a texturized chamber with an adjustable direction changing rod extending across the chamber at right angles to yarn travel and having an axis offset with respect to the axis of the chamber, means for introducing yarn to be texturized, plied or both at an acute angle into a zone in which compressed air is introduced tangentially, causing a vortex which spins a loop or crank-shaped portion of the yarn, imparting to it a false twist. There can be either one yarn inlet at an angle or there may be two inlets. After the false twist, if it is desired to texturize, the direction of the yarn is changed by the adjustable rod and the yarn partially untwists as it moves across the rod, thus changing its direction. If there are two yarn inlets and hence two yarns introduced and the rod can be withdrawn to the point where there is no change in direction, then instead of texturizing, plying of the two yarns takes place. By introducing the rod part way, plying and partial texturizing can be effected. A process modification is also described in which the yarn before entering the apparatus is moistened. Heat may be also applied, either to the wet yarn before it enters the exit of the texturizer or after leaving the texturizer or both. This results in a partial setting of the loops where the rod has been introduced sufficiently to effect change of direction and hence texturizing. The process is usable even with very fine denier yarn of synthetic thermoplastic, and high operating speeds and, therefore, large outputs are obtained.

Inventors

• 👤 H Pike

Bibliographic Details