Polyester-based conjugate fiber excellent in heat shielding and color development

• Main Authors: OHGA, DAISUKE, NAKATSUKA, HITOSHI, TAKAHASHI, ERIKO, KAWAKADO, SHINYA, SUEYOSHI, SHOJI
• Format: Patent
• Language: Chinese; English
• Published: 01.09.2013
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TEXTILES

To provide a polyester-based conjugate fiber having high reflectance in infrared wavelength range (for example, 800 to 3000 nm), which is easy to be changed into thermal energy, as well as having color development property comparable to conventional polyester fibers. The polyester-based conjugate fiber is a sheath core conjugate fiber. The core comprises a thermoplastic polymer including a sunlight shielding material having a mean particle size of 0.5 m or less at 8% by weight to 70% by weight; and the sheath comprises a polyester-based polymer including a color-developable functional fine particle having a mean particle size of 0.1 m or less and being smaller than the sunlight shielding material at 0.5% by weight to 10% by weight. Further the mass ratio of core to sheath is core: sheath of 10: 90 to 30: 70.