APPARATUS FOR THE MANUFACTURE OF CRIMPED BULKY FILAMENTS

In an apparatus for preparing crimped bulky filaments from continuous non-crimped filaments having a total denier of 40 - 5,000 using a moving screen and a jet stream of a temperature higher than 200 DEG C. and a pressure of 3-12 kg/cm2 gauge, which impinges on the screen accompanying the filaments,...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAHASHI N,JA, HINO H,JA, NAKAMURA T,JA
Format:	Patent
Sprache:	eng
Schlagworte:	CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, ORYARNS MECHANICAL FINISHING OF YARNS OR ROPES TEXTILES WARPING OR BEAMING YARNS YARNS OR THREADS
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Beschreibung
Zusammenfassung:	In an apparatus for preparing crimped bulky filaments from continuous non-crimped filaments having a total denier of 40 - 5,000 using a moving screen and a jet stream of a temperature higher than 200 DEG C. and a pressure of 3-12 kg/cm2 gauge, which impinges on the screen accompanying the filaments, at a filament feeding rate of at least 250 m/min and (x) = D X R is at least 60,000 de.meter/min, the improvement in that the screen is an assembly screen having a perforation ratio of 20 - 60 percent, the distance between the upper and lower screens being up to 2 mm, the perforation area of the lower screen being smaller than the area of the upper screen, and the distance between the open end of the jet and the upper screen being up to 3 mm.