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Title:
METHOD FOR MANUFACTURING CRIMPED FIBER, METHOD FOR MANUFACTURING FIBER FORMED BODY, AND APPARATUS FOR MANUFACTURING CRIMPED FIBER
Document Type and Number:
Japanese Patent JP2020204109
Kind Code:
A
Abstract:
To sufficiently open a crimped fiber.SOLUTION: A method for manufacturing a crimped fiber 100 includes: a crimping process of crimping a fiber bundle 110 constituted by collecting a plurality of thermoplastic resin fibers 113 to form crimped parts 111 where positions of mutual crest parts 113A and positions of mutual valley parts 113B are reciprocally arranged by bending a plurality of the respective thermoplastic resin fibers 113 in a wavelike fashion; and an opening process of opening the fiber bundle 110 while conveying the fiber bundle 110 after the crimping process. In the opening process, a tensed state of the fiber bundle 110 and a relaxed state of the fiber bundle 110 are alternately repeated, and an air stream 67 blowing out from a nozzle 69 is directed to the fiber bundle 110 in a relaxed state.SELECTED DRAWING: Figure 2

Inventors:
OKUDA RISAKO
Application Number:
JP2019112577A
Publication Date:
December 24, 2020
Filing Date:
June 18, 2019
Export Citation:
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Assignee:
TOYOTA BOSHOKU CORP
International Classes:
D02J1/18; D01G13/00; D01G21/00
Attorney, Agent or Firm:
Patent Business Corporation Grund Patent Office



 
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