SPINNING NOZZLE PROCESS FOR PRODUCING FIBROUS MASS FIBROUS MASS AND PAPER

• Main Authors: KOTERA YOSHINOBU, ONOHARA YUKIO, NAKANISHI SHIMA
• Format: Patent
• Language: English; Korean
• Published: 14.03.2017
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BRAIDING; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; COTTON-WOOL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; IMPREGNATING OR COATING OF PAPER; KNITTING; LACE-MAKING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; NON-WOVEN FABRICS; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; SPINNING; TEXTILES; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; TRIMMINGS; WADDING

방사 노즐(1)은 토출 구멍(3)이 1평방mm당 600개/mm이상 1200개/mm이하의 고밀도로 배치된 유공부(2)를 갖고 있다. 섬유 집합체의 제조 방법은, 상기 방사 노즐(1)의 토출 구멍(3)으로부터, 50℃에서의 점도가 30포이즈 이상 200포이즈 이하인 방사 원액을 토출하여, 섬유 집합체를 제조한다. 이 섬유 집합체의 단섬유 섬도는 0.005dtex 이상 0.01dtex 이하이다. 습식 방사 방식으로 직접 방사하는 것에 의해, 안정되고 균일하며 연속된 나노 섬유 집합체를 고효율로 제조할 수 있다. A spinning nozzle (1) which has a perforated part (2) in which ejection holes (3) have been arranged in a density as high as 600-1,200 holes/mm 2 . This process for producing a fibrous bundle comprises ejecting a spinning dope having a viscosity as measured at 50°C of 30-200 P from the ejection holes (3) of the spinning nozzle (1) to produce a fibrous bundle. This fibrous bundle has a single-fiber fineness of 0.005-0.01 dtex. By the wet-process direct spinning, a mass of nanofibers which are stably uniform and continuous can be produced at a high efficiency.