JPS6445838A - Composite fancy false twisted yarn and its production - Google Patents

Abstract

PURPOSE: To obtain a composite false-twisted yarn in which neps and slubs exist in a mixed state and which has an excellent design effect and an excellent touch by feeding a yarn into a region for false-twisting a core yarn, further feeding a yarn to a position apart from the core yarn at a constant distance, changing the doubling point, and simultaneously winding up the obtained composite designed false twisted yarn. CONSTITUTION: This composite false-twisted fancy yarn is obtained by feeding a yarn 2 into a region for false-twisting a core yarn 1 at a constant overfeeding rate, further feeding a yarn 3 to a place apart from the core yarn 1 at a constant distance under the control of a doubling point, and winding the yarn 3 on the wound yarn 2, while changing the doubling point, thereby simultaneously false-twisting the three or more thermoplastic multi-filaments to obtain the composite false-twisted yarn. The composite false-twisted yarn comprises the core yarn 1, the yarn 2 wound on the core yarns 1, while forming neps on the periphery of the core yarn 1, and the yarn 3 wound on the wound yarn 2, while forming slubs on the periphery of the wound yarns 2.