JP2008025057A - 微細繊維集合体の製造方法 - Google Patents
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- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43838—Ultrafine fibres, e.g. microfibres
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
【解決手段】この発明の微細繊維集合体の製造方法は、高分子溶液3または高分子融液に連続的に発生した泡4に高電圧を印加することにより静電紡糸を行なうこととしている。前記泡4は、プラスチック、セラミックスおよび金属材料から選ばれる1種または2種以上の組み合わせからなる多孔質材料2または細管を介して圧縮空気1を通過させることにより発生させたものとすることができる。
【選択図】 図1
Description
ただし、γは、高分子溶液または高分子融液の表面張力、
θは、多孔質材料または細管と高分子溶液または高分子融液との接触角、
Dは多孔質材料の最大気孔直径または細管の最大直径である。
ただし、γは、高分子溶液または高分子融液の表面張力、
θは、多孔質材料または細管と高分子溶液または高分子融液との接触角、
Dは多孔質材料の最大気孔直径または細管の最大直径である。
「実施例1」
ケン化度87.0〜89.0モル%のポリビニルアルコールを水に溶解させ、固形分濃度が20mass%の高分子溶液(紡糸水溶液)を調製した。図1に示したように、この高分子溶液3を径80mmステンレススチール製円筒容器に投入し、底面から圧縮空気1の供給が可能なように、泡発生用の多孔質材料として不織布2(廣瀬製紙製不織布。商品名15TH145)を設置した。不織布2を介して4.0kPaの圧縮空気を供給し、高分子溶液表面全体に連続的に泡4を発生させた。対向電極としてアルミ箔を、泡表面から8cmの位置に設置した(図示せず)。高分子溶液上の泡の発生が均一になったところで、高分子溶液側に40KVの直流高電圧を印加し、アルミ箔上に微細繊維集合体を形成させた。圧縮空気を連続的に供給しながら、3分間の静電紡糸を行い、アルミ箔上に堆積した微細繊維集合体の重量を計測し、単位面積、単位時間当たりの紡糸重量として計算したところ92g/(h・m2)であった。
ケン化度87.0〜89.0モル%のポリビニルアルコールを表1に示したような条件で濃度調製を行い、泡発生用多孔質材料と圧縮空気の圧力を変化させ、実施例1と同様に紡糸を行い、微細繊維集合体の紡糸重量を計測した。結果を表1に示す。圧縮空気の圧力上昇とともに、紡糸重量の増加が認められた。
重量平均分子量が80,000のポリ−ε−カプロラクトンをアセトンに溶解し、固形分濃度が5mass%の高分子溶液を調製した。表1に示したように泡発生用多孔質材料と圧縮空気の圧力を変化させ、実施例1と同様に紡糸を行い、微細繊維集合体の紡糸重量を計測した。結果を表1に示す。圧縮空気の圧力上昇とともに、紡糸重量の増加が認められた。
重量平均分子量40,000のポリビニルピロリドンを2−プロパノールに溶解し、固形分濃度が30mass%の高分子溶液を調製した。表1に示したように、泡発生用多孔質材料と圧縮空気の圧力を変化させ、実施例1と同様に紡糸を行い、微細繊維集合体の紡糸重量を計測した。結果を表1に示す。圧縮空気の圧力上昇とともに、紡糸重量の増加が認められた。
表1に示した条件で各種ポリマー溶液を調整し、圧縮空気の圧力を泡発生用多孔質材料のファーストバブル圧力以下に維持し、実施例1と同様に紡糸を行い微細繊維集合体の紡糸重量を計測した。結果を表1に示す。圧縮空気の圧力がファーストバブル圧力以下では、泡の発生がないため、紡糸が行なわれず、微細繊維集合体の紡糸重量はゼロであった。
2 多孔質材料(不織布)
3 高分子溶液
4 泡
Claims (3)
- 高分子溶液または高分子融液に連続的に発生した泡に高電圧を印加することにより静電紡糸を行なうことを特徴とする微細繊維集合体の製造方法。
- プラスチック、セラミックスおよび金属材料から選ばれる1種または2種以上の組み合わせからなる多孔質材料または細管を介して圧縮空気を通過させることにより、高分子溶液または高分子融液に連続的に泡を発生させるようにしていることを特徴とする請求項1に記載の微細繊維集合体の製造方法。
- 多孔質材料または細管に供給する圧縮空気の圧力が、次式で表される圧力Pより高い圧力であることを特徴とする請求項2に記載の微細繊維集合体の製造方法。
P= 4×γ×cosθ/D
ただし、γは、高分子溶液または高分子融液の表面張力、
θは、多孔質材料または細管と高分子溶液または高分子融液との接触角、
Dは多孔質材料の最大気孔直径または細管の最大直径である。
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JP2006199179A JP3918179B1 (ja) | 2006-07-21 | 2006-07-21 | 微細繊維集合体の製造方法 |
PCT/JP2006/323922 WO2008010307A1 (en) | 2006-07-21 | 2006-11-30 | Process for producing microfiber assembly |
CNA2006800554222A CN101501262A (zh) | 2006-07-21 | 2006-11-30 | 微细纤维集合体的制造方法 |
KR1020097002310A KR20090031759A (ko) | 2006-07-21 | 2006-11-30 | 미세 섬유 집합체의 제조 방법 |
US12/374,513 US20100001438A1 (en) | 2006-07-21 | 2006-11-30 | Process for producing microfiber assembly |
EP06833725A EP2048272A4 (en) | 2006-07-21 | 2006-11-30 | METHOD FOR PRODUCING A MICROFIBRE COMPOSITE |
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JP2006199179A JP3918179B1 (ja) | 2006-07-21 | 2006-07-21 | 微細繊維集合体の製造方法 |
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JP3918179B1 JP3918179B1 (ja) | 2007-05-23 |
JP2008025057A true JP2008025057A (ja) | 2008-02-07 |
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US (1) | US20100001438A1 (ja) |
EP (1) | EP2048272A4 (ja) |
JP (1) | JP3918179B1 (ja) |
KR (1) | KR20090031759A (ja) |
CN (1) | CN101501262A (ja) |
WO (1) | WO2008010307A1 (ja) |
Cited By (4)
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JP2010090484A (ja) * | 2008-10-03 | 2010-04-22 | Panasonic Corp | ナノファイバ製造装置、ナノファイバ製造方法 |
JP2010242251A (ja) * | 2009-04-03 | 2010-10-28 | Panasonic Corp | ナノファイバ製造装置、ナノファイバ製造方法 |
JP2012533006A (ja) * | 2009-07-15 | 2012-12-20 | ディーエスエム アイピー アセッツ ビー.ブイ. | ポリアミドナノファイバの電界紡糸 |
CN111267336A (zh) * | 2020-01-23 | 2020-06-12 | 厦门翔澧工业设计有限公司 | 一种3d静电纺织方法及其设备 |
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WO2022224676A1 (ja) * | 2021-04-21 | 2022-10-27 | 廣瀬製紙株式会社 | 微細繊維集合体の製造方法及び製造装置 |
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KR100458946B1 (ko) | 2002-08-16 | 2004-12-03 | (주)삼신크리에이션 | 나노섬유 제조를 위한 전기방사장치 및 이를 위한방사노즐팩 |
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-
2006
- 2006-07-21 JP JP2006199179A patent/JP3918179B1/ja active Active
- 2006-11-30 KR KR1020097002310A patent/KR20090031759A/ko not_active Application Discontinuation
- 2006-11-30 CN CNA2006800554222A patent/CN101501262A/zh active Pending
- 2006-11-30 EP EP06833725A patent/EP2048272A4/en not_active Withdrawn
- 2006-11-30 WO PCT/JP2006/323922 patent/WO2008010307A1/ja active Application Filing
- 2006-11-30 US US12/374,513 patent/US20100001438A1/en not_active Abandoned
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010090484A (ja) * | 2008-10-03 | 2010-04-22 | Panasonic Corp | ナノファイバ製造装置、ナノファイバ製造方法 |
JP2010242251A (ja) * | 2009-04-03 | 2010-10-28 | Panasonic Corp | ナノファイバ製造装置、ナノファイバ製造方法 |
JP2012533006A (ja) * | 2009-07-15 | 2012-12-20 | ディーエスエム アイピー アセッツ ビー.ブイ. | ポリアミドナノファイバの電界紡糸 |
CN111267336A (zh) * | 2020-01-23 | 2020-06-12 | 厦门翔澧工业设计有限公司 | 一种3d静电纺织方法及其设备 |
Also Published As
Publication number | Publication date |
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EP2048272A1 (en) | 2009-04-15 |
WO2008010307A1 (en) | 2008-01-24 |
EP2048272A4 (en) | 2011-06-22 |
KR20090031759A (ko) | 2009-03-27 |
US20100001438A1 (en) | 2010-01-07 |
CN101501262A (zh) | 2009-08-05 |
JP3918179B1 (ja) | 2007-05-23 |
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