SEA-ISLAND COMPOSITE FIBER, COMPOSITE ULTRA-FINE FIBER, AND FIBER PRODUCT

• Main Authors: MASUDA, Masato, HANAWA, Tatsuya, FUNAKOSHI, Joji
• Format: Patent
• Language: English; French; German
• Published: 04.01.2017
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; TEXTILES

Provided is a sea-island composite fiber in which island components are interspersed in a sea component on a fiber cross-section, wherein the island components have a composite structure formed with two or more different polymers joined together, and the ratio (L/D) of the length (L) of the joint section of the island component and the diameter (D) of the composite island component is 0.1 to 10.0. The sea-island composite fiber has satisfactory high-order processability, and therefore can be produced with high productivity and quality using existing equipment, and thin fibers obtained by removing the sea component have functions of structure control etc. while having an excellent tactile impression.