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Title:
METHOD FOR MANUFACTURING RESIN FIBER, NOZZLE HEAD USED IN SAME, AND MANUFACTURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/087993
Kind Code:
A1
Abstract:
Provided are a manufacturing method for a resin fiber, a nozzle head used in the same, and a manufacturing device, with which production quantities can be increased with high operability. The method is for manufacturing resin fiber, which is ultrafine long fiber, by drawing thermoplastic resin in a high-pressure gas flow, and is characterized in that molten resin inside a discharge opening part is extruded and drawn to the outside and discharged into air by negative pressure applied to the discharge opening part by gas flow from high-pressure gas spray outlets and is drawn while being cooled. The manufacturing device is characterized by including an extruder for extruding molten resin from a nozzle at the end of a barrel while melting the resin with a screw in the barrel and a nozzle head attached to the tip of the nozzle, and in that the nozzle head includes, on a substantially vertical face, the discharge opening parts for extruding the molten resin and the high-pressure gas spray outlets that are for forming a substantially horizontal gas flow and are provided in the vicinity of the discharge opening parts so as to release into the air while extruding and drawing the molten resin within the discharge opening parts, and the diameter of the discharge opening parts is 0.5 mm or greater.

Inventors:
KONDO Masahiro (Ltd. 208 Techno FRONT Morigasaki 4-6-15, Omoriminami, Ota-k, Tokyo 13, 〒1430013, JP)
SHINJI Kunihiro (Ltd. 208 Techno FRONT Morigasaki 4-6-15, Omoriminami, Ota-k, Tokyo 13, 〒1430013, JP)
SHINJI Kiyotaka (Ltd. 208 Techno FRONT Morigasaki 4-6-15, Omoriminami, Ota-k, Tokyo 13, 〒1430013, JP)
Application Number:
JP2017/030936
Publication Date:
May 17, 2018
Filing Date:
August 29, 2017
Export Citation:
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Assignee:
KANSAI ELECTRONICS CO., LTD. (208 Techno FRONT Morigasaki, 4-6-15 Omoriminami, Ota-k, Tokyo 13, 〒1430013, JP)
International Classes:
D01D5/08; D01D4/02; D04H3/16
Domestic Patent References:
WO2016152999A12016-09-29
Foreign References:
JPH01111055A1989-04-27
JPS496768B11974-02-16
JPH0593310A1993-04-16
JPH01221521A1989-09-05
JP2016130384A2016-07-21
JP2002371427A2002-12-26
JPH0859080A1996-03-05
JP2012112077A2012-06-14
US8641960B12014-02-04
JP2016204774A2016-12-08
Attorney, Agent or Firm:
MUTSUKI PARTNERS (Togeki-Bldg. 4F, 4-1-1 Tsukij, Chuo-ku Tokyo 45, 〒1040045, JP)
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