PROCESS FOR PRODUCTION OF COMPOSITE BULK YARN

The present invention is an improvement in the method of producing a composite bulk yarn of a false-twist type. Composite bulk yarns produced by the conventional false-twisting methods have inconsistent shapes and a poor hand and some yarns are of little value commercially. However, it is found that...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SASAKI Y,JA, TANI M,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:	The present invention is an improvement in the method of producing a composite bulk yarn of a false-twist type. Composite bulk yarns produced by the conventional false-twisting methods have inconsistent shapes and a poor hand and some yarns are of little value commercially. However, it is found that with an appropriate process condition, a grouping of composite bulk yarns having an excellent hand can be provided. In the present invention, the grouping has been standardized and an attempt has been made to find a process for the production of the standardized composite bulk yarn. Two empirical formulas are offered with respect to the steps of selecting the process conditions. With the use of the two empirical formulas, it becomes easy to frame a plan to produce the standardized composite bulk yarn. This invention has also attained means of always securing high quality products more pleasing to the touch.