CORE-SHEATH CONJUGATED FIBER AND FIBROUS STRUCTURE COMPOSED OF THE SAME FIBER AND METHOD FOR PRODUCING THE SAME

• Main Authors: OCHI MASAKAZU, YOSHIDA TETSUHIRO, SAEKI TOMOJI
• Format: Patent
• Language: English
• Published: 09.04.2003
• Edition: 7
• Subjects: ACCESSORIES; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; HUMAN NECESSITIES; LAUNDERING; LOOMS; METHODS OF WEAVING; NATURAL OR ARTIFICIAL THREADS OR FIBRES; OUTERWEAR; PROTECTIVE GARMENTS; SPINNING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; WEARING APPAREL; WEAVING; WOVEN FABRICS

PROBLEM TO BE SOLVED: To provide a core-sheath conjugated fiber having excellent comfortableness, warmth retaining properties and lightweight feeling and a unique soft (comfortable) touch feeling with a moist feeling, a fibrous structure composed of the fiber and a method for producing the fibrous structure. SOLUTION: This core-sheath conjugated fiber is composed of at least two components of a core component A which is a polyester polymer comprising a copolymerized copolymerization component and a sheath component B that is a polyhexamethylene adipamide polymer comprising >=0.01 and <=10 wt.% of a copolymerized lactam. The fiber satisfies the following conditions (1) to (5). (1) fineness: >=0.9 and <=11.0 dtex, (2) number of crimp: >=5 and <=25 peaks/25 mm, (3) crimp ratio: >=5 and <=30%, (4) dry strength: >=0.5 and <=10.0 cN/ dtex and (5) dry elongation: >=5 and <=100%.