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Patent Searching and Data


Title:
METHOD OF MANUFACTURING NEEDLE PUNCHED NONWOVEN FABRIC
Document Type and Number:
WIPO Patent Application WO/2018/190342
Kind Code:
A1
Abstract:
[Problem] To provide a method of manufacturing a needle punched nonwoven fabric with which, when finished by embossing, it is possible to obtain a hardly scuffing and distinct convex-concave pattern. [Solution] Core-in-sheath composite fibers are accumulated and a fibrous web is formed. The core components of the core-in-sheath composite fibers are composed of a copolymer comprising ethylene glycol and terephthalic acid. The sheath components are composed of a copolymer comprising ethylene glycol, adipic acid, terephthalic acid, isophthalic acid, and diethylene glycol. The core-in-sheath composite fibers are three-dimensionally interlaced with each other by needle-punching the fibrous web, and a needle punched nonwoven fabric is obtained. This needle punched nonwoven fabric is put through heated emboss rolls and a convex-concave pattern is added to the surface. At this time, the sheath components are softening melted and the core-in-sheath composite fibers are fusion bonded to each other, and an embossed nonwoven fabric having a distinct convex-concave pattern is obtained.

Inventors:
HANAYA Kazutoshi (1-3 Kyutaro-machi 4-chome, Chuo-ku, Osaka-sh, Osaka 66, 〒5418566, JP)
TAKAHASHI Toru (4-1 Hinakita-machi, Okazaki-sh, Aichi 11, 〒4448511, JP)
KAMINOKADO Hideaki (1-3 Kyutaro-machi 4-chome, Chuo-ku, Osaka-sh, Osaka 66, 〒5418566, JP)
AKAO Msaya (6-7 Nihonhashi-Hongiku-cho 4-chome, Chuo-k, Tokyo 21, 〒1038321, JP)
NAGATSUKA Yuske (4-1 Hinakita-machi, Okazaki-sh, Aichi 11, 〒4448511, JP)
Application Number:
JP2018/015104
Publication Date:
October 18, 2018
Filing Date:
April 10, 2018
Export Citation:
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Assignee:
UNTIKA LTD. (50 Higashihon-machi 1-chome, Amagasaki-shi Hyogo, 24, 〒6600824, JP)
International Classes:
D04H1/46; D04H1/4382; D04H1/485; D04H1/541
Foreign References:
JPH10298828A1998-11-10
JP2003166159A2003-06-13
JP2003325411A2003-11-18
JP2003171826A2003-06-20
JP6313841B12018-04-18
JP2016211081A2016-12-15
JPH09119056A1997-05-06
JPH1025652A1998-01-27
JP2018009256A2018-01-18
Attorney, Agent or Firm:
OKMURA Shigeki (3F Saisujichishima BLD, 1-1 Awaji-machi 2-chome, Chuo-ku, Osaka-sh, Osaka 47, 〒5410047, JP)
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