MELT SPINNING DEVICE AND METHOD FOR PRODUCING FIBER USING THE SAME

To provide a melt spinning device in which the generation of foreign matters caused by the carbonization of a resin is suppressed and capable of stable melt spinning.SOLUTION: A melt spinning device comprises: a nozzle 31 discharging a molten resin; a gas flow passage 40 arranged so as to surround t...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ABE HIROTA, HATSUTOMO TAICHI
Format: Patent
Sprache:eng ; jpn
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:To provide a melt spinning device in which the generation of foreign matters caused by the carbonization of a resin is suppressed and capable of stable melt spinning.SOLUTION: A melt spinning device comprises: a nozzle 31 discharging a molten resin; a gas flow passage 40 arranged so as to surround the nozzle 31 along the circumferential direction thereof; and a gas jet part 40a connected to the gas flow passage 40 and feeding a heated gas flow A to the gas flow passage 40. The gas flow passage 40 is composed in such a manner that the heated gas flow A circulates along an extending direction of the nozzle 31 from a trailing end of the nozzle 31 toward a leading end. A heat insulation material 60 is provided along the circumferential direction of the nozzle 31 between the gas flow passage 40 and the nozzle 31 and at a position of the trailing end side in the extending direction of the nozzle 31.SELECTED DRAWING: Figure 2 【課題】樹脂の炭化に起因する異物の発生が抑制され、安定した溶融紡糸が可能な溶融紡糸装置を提供すること。【解決手段】溶融紡糸装置は、溶融樹脂を吐出するノズル31と、ノズル31をその周方向に沿って囲むように配置された気体流路40と、気体流路40に連結され且つ加熱された気体流Aを気体流路40に供給する気体噴射部40aとを備える。気体流路40は、ノズル31の延在方向に沿ってノズル31の後端から先端方向に向けて、加熱された気体流Aが流通するように構成されている。気体流路40とノズル31との間であって、且つ、ノズル31の延在方向の後端側の位置に、ノズル31の周方向に沿って断熱材60を備える。【選択図】図2