C Process Of Producing Polyester Short Fiber Having Good Natural bulkiness

摘要

The present invention relates to a method for manufacturing polyester monofilaments having excellent bulkiness by supplying sheath core yarns having a polyester C type sheath unit and an available core unit as a core yarn and an effective yarn, false-twisting and interlacing, and cutting the same by a predetermined length. According to the present invention, the present invention uses a side opened hollow fiber having an excellent elution at a room temperature to have a weight loss of 80% by elution while having the same diameter apparently. In addition, the present invention provides C type polyester hollow monofilaments having excellent bulkiness by making the number of crimps per 10 cm of monofilaments be 40-150, thereby providing heat insulating materials providing proper volumes and warm feelings such as duck down.