Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1980-02-22
1981-08-25
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
15159A, 264162, 264341, B06B 300
Patent
active
042858925
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.
REFERENCES:
patent: 3524447 (1970-08-01), Evans
patent: 3554880 (1971-01-01), Jenkia
Betsuda Yasuhiro
Taguchi Yoshio
Takashashi Yasuo
Shinwa Seisakusho Co., Ltd.
Woo Jay H.
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