Abstract:
A method of manufacturing textured yarn comprises providing a crimped yarn composed of numerous crimped and entangled together thermoplastic synthetic fibers, partially removing some of the crimp from the crimped yarn, heating and pressing together the resulting partially crimped yarn to contact the fibers at their mutually intercrossed locations with sufficient pressure and at a sufficient temperature to effect permanent transverse deformation of the fibers at their contact points, and terminating the heating and pressing to obtain a textured yarn composed of numerous fibers having longitudinally and randomly spaced transverse deformities. The yarn is initially crimped by false twisting and steam setting, and some of the crimp is removed from the crimped yarn to remove from 75 to 95 percent of the crimp.
Abstract:
The present invention relates to a method of making a covered elastic yarn with an elastic thread as a core yarn, and a continuous thermoplastic multifilament thread as a sheath yarn, wherein the respective filaments forming said covered elastic yarn are respectively tangled with each other to retain flux form, and at the same time to form the sheath-core system, and said sheath yarn wraps the outer periphery of said core yarn but is reversed irregularly and intermittently in said direction, and said sheath yarn and said core yarn are substantially twistless.
Abstract:
An apparatus for manufacturing a fluffy yarn used in combination with a yarn-advancing mechanism and having one or more fluffraising members axially rotational in contact with a ballooning portion of the advancing yarn for partially and intermittently cutting fibrous materials composing the yarn. The fluff-raising member may be rotated positively.