SPINNERET FOR CORE-SHEATH HOLLOW CONJUGATE FIBER

PURPOSE:To provide a spinneret not causing kneeling phenomenon of a conju gate polymer discharged from a slit of an orifice even in using polymers having large difference in melt viscosity to both components of core and sheath, capable of smoothly joining both components and producing core-sheath ho...

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Bibliographische Detailangaben
Hauptverfasser:	NAKATSUKA KOJI, TSUJIMOTO KEIZO, KITAMURA SHUICHI
Format:	Patent
Sprache:	eng
Schlagworte:	MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES
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Beschreibung
Zusammenfassung:	PURPOSE:To provide a spinneret not causing kneeling phenomenon of a conju gate polymer discharged from a slit of an orifice even in using polymers having large difference in melt viscosity to both components of core and sheath, capable of smoothly joining both components and producing core-sheath hollow conjugate fiber free from hollow breakage and having excellent grade in good operability. CONSTITUTION:This spinneret for core-sheath hollow conjugate fibers for subjecting two kinds of different spinning component liquids A and B to conjugate spinning into a core-sheath type consists of a lower spinneret plate 1 having a discharge inducing hole 9 for component A in the upper part and an orifice 4 having a introducing hole 5 having conjugate flow and a slit having a discontinuous part 12 and a upper spinneret plate 2 having a capillary 3 having a capillary discharge hole 6 on the bottom for component B and a guide hole 11 for component A, and the capillary 3 is closely inserted on the inner wall of a discharge inducing hole 9 for component A giving a composite flow and a notch 8 giving a passage for feeding the component A in the outer pheripheral part of the capillary 3 is formed.