Heat generating polyester fiber and method of manufacturing the same

• Main Authors: LEE, YOUNG IL, LEE, DONG EUN, LIM, KI WOONG
• Format: Patent
• Language: English; Korean
• Published: 08.12.2017
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; CHEMISTRY; COMPOSITIONS BASED THEREON; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; GENERAL PROCESSES OF COMPOUNDING; LAUNDERING; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; METALLURGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; ORGANIC MACROMOLECULAR COMPOUNDS; SPINNING; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; 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; WORKING-UP

A heating functional polyester fiber according to the present invention contains carbon-doped tungsten cesium oxide particles of formula (I), C_s_x W C_y O_z, therein. In the formula (I), Cs is cesium, W is tungsten, C is carbon, O is oxygen, 0<x<=1, 0<y<=1, and 0<z<=3. The heating functional polyester fiber is manufactured through: (i) a process of manufacturing a polyester master batch chip by melting and mixing carbon-doped tungsten cesium oxide particulates of the formula (I) and a polyester resin; (ii) a process of manufacturing a spinning dope by melting and mixing the manufactured polyester master batch chip and a general polyester chip; and (iii) a process of spinning and cooling the manufactured spinning dope through a spinneret. Since the dispersibility of the carbon-doped tungsten cesium oxide particles in the fiber is excellent, radioactivity and co-workability are good even at a winding speed of 4,000 m/min or more. Excellent heating functionality is semi-permanently maintained, and dyeing is possible with various colors. The present invention has excellent washing and sunlight fastness. 본 발명에 따른 발열기능성 폴리에스테르 섬유는 섬유 내에 하기 일반식(Ⅰ)의 탄소 도핑된 텅스텐세슘산화물 미립자를 함유한다.(상기식에서, Cs는 세슘, W는 텅스텐, C는 탄소, O는 산소, 0< x ≤1, 0< y≤1, 0< z ≤3 이다) 본 발명은 (ⅰ) 하기 일반식(Ⅰ)의 탄소 도핑된 텅스텐세슘산화물 미립자와 폴리에스테르 수지를 용융 혼합하여 폴리에스테르 마스터 배치 칩(Chip)을 제조하는 공정; (ⅱ) 상기와 같이 제조된 폴리에스테르 마스터 배치 칩(Chip)과 일반 폴리에스테르 칩을 용융 혼합하여 방사도프를 제조하는 공정; 및 (ⅲ) 상기와 같이 제조된 방사도프를 방사구금을 통해 방사한 후 냉각하는 공정;들 거쳐 상기 발열기능성 폴리에스테르 섬유를 제조한다. 본 발명은 섬유내 상기 탄소 도핑된 텅스텐세슘산화물 미립자의 분산성이 뛰어나 4,000m/분 이상의 권취속도로 고속방사하여도 방사성 및 조업성이 양호하며, 우수한 발열기능성이 반영구적으로 유지되며, 다양한 색상으로 염색이 가능하고, 세탁 및 일광 견뢰도가 우수하다.