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1. JP2021008701 - 繊維及びその製造方法、並びに不織布及びその製造方法

官庁
日本
出願番号 2020110067
出願日 26.06.2020
公開番号 2021008701
公開日 28.01.2021
公報種別 A
CPC
C08G 63/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
63Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
02Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
06derived from hydroxycarboxylic acids
C08G 63/91
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
63Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
91Polymers modified by chemical after-treatment
D01D 5/08
DTEXTILES; PAPER
01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
5Formation of filaments, threads, or the like
08Melt spinning methods
D01F 6/62
DTEXTILES; PAPER
01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
6Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
58from homopolycondensation products
62from polyesters
D04H 1/728
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL
1Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
70characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
72the fibres being randomly arranged
728by electro-spinning
D04H 3/011
DTEXTILES; PAPER
04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL
3Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
005Synthetic yarns or filaments
009Condensation or reaction polymers
011Polyesters
出願人 KAO CORP
花王株式会社
発明者 ABE HIROTA
阿部 裕太
ISHIDA KAORI
石田 華緒梨
HIRANO TAKAHIRO
平野 喬大
UEMATSU TAKEHIKO
植松 武彦
YONEDA KEITARO
米田 敬太郎
代理人 特許業務法人翔和国際特許事務所
優先権情報 2019122366 28.06.2019 JP
発明の名称
(EN) FIBER AND PRODUCTION METHOD THEREFOR, BIODEGRADABLE POLYESTER FOR FIBER PRODUCTION AND PRODUCTION METHOD THEREFOR, AND NONWOVEN FABRIC
(JA) 繊維及びその製造方法、並びに不織布及びその製造方法
要約
(EN)

PROBLEM TO BE SOLVED: To provide an improved technique for easily producing fibers from molten biodegradable resin.

SOLUTION: A fiber according to the present invention contains a biodegradable polyester having a weight average molecular weight of 1.0×104 or more and 1.0×105 or less, and a melt viscosity of 1.0×100 Pa s or more and 2.0×102 Pa s or less at a temperature of 200°C and a shear velocity of 0.1 s-1, and has an average fiber diameter of 0.1 μm or more and 6 μm or less. The biodegradable polyester is suitable for use in fiber production applications. A fiber production method according to the present invention includes a step for spinning the biodegradable polyester by means of a melt blowing method or a melt electro-spinning method. The present invention also provides a method for producing a biodegradable polyester for fiber production by means of hydrolysis or alcoholysis.

SELECTED DRAWING: None

COPYRIGHT: (C)2021,JPO&INPIT


(JA)

【課題】溶融した生分解性樹脂から繊維を容易に製造する改良技術を提供すること。
【解決手段】本発明の繊維は、重量平均分子量が1.0×10以上1.0×10未満であり、且つ温度200℃、せん断速度0.1s−1における溶融粘度が1.0×10Pa・s以上2.0×10Pa・s以下である生分解性ポリエステルを含み、平均繊維径が0.1μm以上6μm以下である。前記生分解性ポリエステルは、繊維の製造用途に好適に用いられる。本発明の繊維の製造方法は、前記生分解性ポリエステルをメルトブロー法又は溶融電界紡糸法によって紡糸する工程を有する。また本発明は、加水分解又は加アルコール分解による繊維製造用生分解性ポリエステルの製造方法も提供する。
【選択図】なし


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