Wound thread package and manufacturing method for same
AssigneeUbe Exsymo Co., Ltd.
InventorsSeiji Tanaka, Yasushi Kato, Kousuke Kanno, Kazuyoshi Shimizu
Life of this patent
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Abstract
There is provided a wound thread package that is unlikely to cause problems such as cob-webbing and collapse at the time of unwinding even when the wound thread is a multi-filament thread or tape-like thread, and a manufacturing method for the same. To manufacture a wound thread package 1 by winding a plurality of multi-filament threads or tape-like threads having a total fineness of 100 to 6400 dtex per thread around a bobbin 2 by a traverse method, the threads constituting a thread layer 3 are arranged at intervals therebetween and wound with the same in traverse width w and at different traverse reverse positions.
Claims8
A cross-wound thread package comprising:
- a bobbin having an unflanged cylindrical shape;
- and
- thread layers that are formed by cross-winding a plurality of multi-filament threads or tape-like threads around the bobbin by a traverse method in a manner that nth thread layer and (n+1)th thread layer cross-wound each other, where n is a natural number, wherein
- the plurality of the multi-filament threads and the plurality of the tape-like threads are wound at intervals around the bobbin,
- each of the multi-filament threads is a singly-twisted thread of a plurality of composite fibers made of two or more kinds of thermoplastic resins having different melting points, or a singly-twisted thread made of the plurality of the composite fibers blended with fibers made of a single kind of resin,
- each of the tape-like threads is a unified thread made of the plurality of the composite fibers or a unified thread made of the plurality of the composite fibers blended with fibers made of a single kind of resin,
- the multi-filament threads and the tape-like threads have a total fineness of 100 to 6400 dtex per thread, and
- each of the plurality of multi-filament threads and the plurality of tape-like threads wound around the bobbin to have a same traverse width as, and a reverse position different from one another.
A manufacturing method for a cross-wound thread package comprising a winding step of winding a plurality of multi-filament threads or a plurality of tape-like threads with a total fineness of 100 to 6400 dtex per thread around a bobbin having an unflanged cylindrical shape by a traverse method, winging at a time and at intervals therebetween in a manner that nth thread layer of the plurality of multi-filament threads or the plurality of tape-like threads and (n+1)th thread layer of the plurality of multi-filament threads or the plurality of tape-like threads cross-wound each other, where n is a natural number, wherein
- in the winding step, each of the plurality of multi-filament threads and the plurality of tape-like threads are wound to have a same traverse width wand has a reverse position different from each other,
- each of the multi-filament threads is a singly-twisted thread of a plurality of composite fibers made of two or more kinds of thermoplastic resins having different melting points, or a singly-twisted thread made of the plurality of the composite fibers blended with fibers made of a single kind of resin, and
- each of the tape-like threads is a unified thread made of the plurality of the composite fibers or a unified thread made of the plurality of the composite fibers blended with fibers made of a single kind of resin.
Dependencies are inferred from the claim text.