Abstract: In a process for producing a fused fabric a fluid is passed in contact with the surface of a fabric on the surface opposite that exposed to sufficient infrared radiation to fuse at least a portion of the synthetic thermoplastic fibers which comprise at least a portion of the fabric.

Abstract: A process is disclosed for producing a continuous multifilament yarn of melt-spinnable, polymeric material which comprises draw-texturing first and second continuous filament yarn ends separately and then combining the yarn ends in an interlacing zone by feeding one of the yarn ends at a higher speed than the other through a jet entangler to interlace the yarns together. Also disclosed is the spun-like continuous multifilament yarn produced by the novel process.

Abstract: A straightened, textured yarn is produced employing an apparatus comprising a crimping means, an entangling means and a heating and tensioning means which heats and applies tension to the crimped and entangled yarn prior to packaging.

Abstract: A fluid is passed in contact with the surface of a fabric on the surface opposite that exposed to sufficient infrared radiation to fuse at least a portion of the synthetic thermoplastic fibers which comprise at least a portion of the fabric.

Abstract: A continuous synthetic filament yarn is processed by crimping, entangling, and straightening the yarn. The yarn is straightened by heating under tension, resulting in a yarn that can be used in its straightened form and later bulked by a subsequent process such as dyeing, boiling, heating, etc. The length of a yarn plug formed by crimping is controlled by controlling the temperature of the yarn.

Abstract: A non-twisted, heather yarn is formed of a plurality of major yarn bundles at least one of which is of a substantially different color from the remaining bundles. Each major yarn bundle is formed of a multiplicity of continuous filaments and has from about 10 to about 90 percent of its filaments cohering to form secondary bundles with the remaining filaments of each major bundle varying in number along the length of the yarn, being interlaced with other major bundles of the yarn, and being randomly located about the yarn axis. Each of the secondary bundles in each unit length of the yarn of about 6 inches has a portion thereof formed of greater than about 30 percent of the filaments of its major bundle and each of the secondary bundles in each unit length of yarn of about 8 inches is non-uniformly, differently oriented relative to the yarn axis.

Abstract: A continuous synthetic filament yarn is processed by crimping, entangling, and straightening the yarn. The yarn is straightened by heating under tension, resulting in a yarn that can be used in its straightened form and later bulked by a subsequent process such as dyeing, boiling, heating, etc. The length of a yarn plug formed by crimping is controlled by controlling the temperature of the yarn.