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Title:
COMPOSITE FIBER, METHOD FOR MANUFACTURING SAME, THERMALLY BONDED NONWOVEN FABRIC, SURFACE SHEET FOR ABSORBENT ARTICLE, AND ABSORBENT ARTICLE
Document Type and Number:
WIPO Patent Application WO/2020/203890
Kind Code:
A1
Abstract:
The present invention pertains to a composite fiber wherein: a core component and a sheath component are arranged substantially concentrically; the ratio by volume of core component/sheath component is 30/70-70/30; the monofilament fineness is 0.6 dtex or more and less than 2.0 dtex; the core component contains 60 mass% or more of a polyester resin; the sheath component contains 60 mass% or more of a high-density polyethylene; the melt mass flow rate of the high-density polyethylene is more than 13 g/10 min and not more than 45 g/10 min; the crystallite size measured for [110] plane of the high-density polyethylene contained in the sheath component is 20.0-50.0 nm; and the fusion heat of the high-density polyethylene (ΔHPE-HD) measured by differential scanning calorimetry (DSC) is 145.0 mJ/mg or more.

Inventors:
KAWAKAMI SHIGEKI
KOIDE TOMOYA
NAKAMURA YASUNORI
UTSUMI KEISUKE
Application Number:
PCT/JP2020/014325
Publication Date:
October 08, 2020
Filing Date:
March 27, 2020
Export Citation:
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Assignee:
DAIWABO HOLDINGS CO LTD (JP)
DAIWABO POLYTEC CO LTD (JP)
International Classes:
D01F8/14; D01F8/06; D02J1/22; D04H1/541
Foreign References:
JP2018135622A2018-08-30
JP2016186134A2016-10-27
JP2009114613A2009-05-28
JP2006283212A2006-10-19
JP2000096344A2000-04-04
JP2015094060A2015-05-18
JP2019063414A2019-04-25
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (JP)
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