Process for tapering synthetic fibers at the end portion thereof
AssigneeShinwa Seisakusho Co., Ltd.
InventorsYasuhiro Betsuda, Yoshio Taguchi, Yasuo Takashashi
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Abstract
A process for tapering synthetic fibers at the end portion thereof comprising the steps of inserting synthetic fibers into a supersonic vibration-given etching liquid to an extent that only the end portion of the fibers is immersed therein, withdrawing the fibers from the supersonic vibration-given etching liquid and then washing the treated fibers in a supersonic vibration-given washing liquid, the insertion and withdrawal being alternately repeated each at a predetermined velocity. In one embodiment, the etching liquid has abrasive particles suspended therein or an abrasive brush provided therein.
Claims21
A process for tapering synthetic fibers at the end portion comprising the steps of:
- inserting the end portions of synthetic fibers at a predetermined velocity into an etching liquid capable of etching or dissolving the fibers while effecting supersonic vibration to the etching liquid,
- withdrawing the synthetic fibers at a predetermined velocity from the etching liquid while effecting supersonic vibration thereto, the insertion and withdrawal being alternately repeated to taper the fibers at said end portions, and then
- immersing the thus tapered synthetic fibers in a washing liquid while effecting supersonic vibration thereto to wash said tapered fibers.
A process for tapering synthetic fibers at the end portions thereof comprising the steps of:
- inserting the end portions of synthetic fibers into an etching liquid capable of etching or dissolving the fibers while effecting supersonic vibration of the etching liquid,
- withdrawing the synthetic fibers from the etching liquid while effecting supersonic vibration of the etching liquid, the insertion and withdrawal being alternately repeated to taper the fibers at said end portions, said supersonic vibration of said etching liquid promoting said etching and dissolving of said fibers and diffusing the portion of the etching liquid in which the dissolved fibers are highly concentrated, and
- immersing the thus tapered synthetic fibers in a washing liquid to effect washing thereof.
Dependencies are inferred from the claim text.