LIQUID CRYSTAL POLYESTER FIBERS AND METHOD FOR PRODUCING SAME

• Main Authors: ONO, YUSUKE, KATSUTA, HIROO, KAWAMATA, CHIEKO, FUNATSU, YOSHITSUGU
• Format: Patent
• Language: English; French; German
• Published: 05.02.2014
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS,ROPES OR THE LIKE; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; MECHANICAL FINISHING OF YARNS OR ROPES; NATURAL OR ARTIFICIAL THREADS OR FIBRES; 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; WARPING OR BEAMING; YARNS

Provided are liquid crystal polyester fibers having a running tension variable width (R) of 5 cN or less and an oil component deposition rate of 3.0 wt% or less. Also provided is a method for producing liquid crystal polyester fibers whereby solid-phase polymerization is performed after applying inorganic particles (A) and phosphoric acid compound (B) to yarn obtained by melt spinning of liquid crystal polyester. Further provided is a mesh textile formed from the liquid crystal polyester fibers. By means of the liquid crystal polyester fibers, method for producing the same, and mesh textile, step transition and product yield during the weaving steps are excellent in that there is little scum and there is little variation of the running tension during the weaving steps.