JP2009019330A - ポリテトラフルオロエチレン繊維 - Google Patents
ポリテトラフルオロエチレン繊維 Download PDFInfo
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- JP2009019330A JP2009019330A JP2008279221A JP2008279221A JP2009019330A JP 2009019330 A JP2009019330 A JP 2009019330A JP 2008279221 A JP2008279221 A JP 2008279221A JP 2008279221 A JP2008279221 A JP 2008279221A JP 2009019330 A JP2009019330 A JP 2009019330A
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- 239000000835 fiber Substances 0.000 title claims abstract description 133
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims description 104
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims description 104
- -1 Polytetrafluoroethylene Polymers 0.000 title claims description 6
- 238000005520 cutting process Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 12
- 239000000047 product Substances 0.000 description 12
- 238000001125 extrusion Methods 0.000 description 6
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000010556 emulsion polymerization method Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 238000009954 braiding Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 238000010035 extrusion spinning Methods 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Images
Classifications
-
- 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
- D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
- D01D5/423—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by fibrillation of films or filaments
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/08—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons
- D01F6/12—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons from polymers of fluorinated hydrocarbons
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2964—Artificial fiber or filament
- Y10T428/2965—Cellulosic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2973—Particular cross section
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2973—Particular cross section
- Y10T428/2976—Longitudinally varying
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
【解決手段】ポリテトラフルオロエチレン(PTFE)の2軸延伸フィルムを熱処理した後、その長さ方向に部分的にスリットした長繊維1であって、前記2軸延伸PTFEフィルムは、フィルムの長さ方向に4倍以上、及び幅方向に1.5倍以上5倍以下の範囲で延伸されており、前記PTFE繊維の密度が2g/cm3以下であり、前記長繊維1は、幅方向に広げたとき単繊維2が部分的に解繊する網目構造3を含み、前記長繊維1は前記単繊維2の集合体である。本発明の別のPTFE繊維は前記長繊維1を切断することにより得られる分枝構造を含む短繊維である。
【選択図】 図1
Description
乳化重合法で得られたPTFEファインパウダー80質量部に対してナフサ20質量部を混合し、この混合物をRR80:1の条件で角度60°のダイを通してペースト押出し、直径17mmの円形のバーを得た。この押出物を直径500mmの一対のロール間で圧延後、260℃の温度でナフサを除去した。得られたPTFEフィルムの長さは約250m、膜厚は0.2mm、幅は約260mmであった。
前記工程で得られたPTFEオリジナルフィルムをその長さ方向に延伸率6倍、同時に幅方向に1.5倍の延伸率で2軸延伸後、このフィルムを370℃で5秒間の条件で熱処理した。得られたPTFEの延伸・焼成フィルムの長さは約2100m、膜厚は0.06mm、幅は約300mmであった。このPTFEフィルムを針付き回転ロールに送り、網目構造を有するPTFE長繊維を得た。
オリジナルPTFEフィルムをその長さ方向に8倍、幅方向に2倍に同時2軸延伸し、他の条件は実施例1と同条件で熱処理および解繊することにより網目構造を有するPTFE長繊維を得た。
オリジナルフィルムの延伸倍率を長さ方向に25倍、幅方向に1.5倍に変更し、熱処理条件を380℃3秒間とする以外は実施例1と同条件とした。
オリジナルフィルムの延伸倍率を長さ方向に35倍、幅方向に1.5倍に変更し、また熱処理条件を380℃、3秒間とする以外実施例1と同条件とした。
解繊用ロールを植針密度:25針/cm2のピンロールに変更し、他の条件は実施例1と同条件でPTFE繊維の製造を試みた。しかし供給した2軸延伸PTFEは不規則に破断するのみであり、繊維状のPTFEを得ることができなかった。
オリジナルフィルムをその長さ方向に25倍の延伸率で1軸延伸すること以外は実施例1と同条件でPTFE長繊維を得た。この繊維の見掛密度は2.19g/ccであった。
2 単繊維
3 網目
4 分枝構造短繊維
10 PTFE長繊維製造装置
11 フィルム供給ロール
12 PTFE延伸フィルム
13 回転ロール
14 針(ピン)
15 植針付き回転ロール(ピンロール)
16 網目構造長繊維
17 スリットされたPTFE長繊維
Claims (7)
- ポリテトラフルオロエチレン(PTFE)の2軸延伸フィルムを熱処理した後、その長さ方向に部分的にスリットした長繊維であって、
前記2軸延伸PTFEフィルムは、フィルムの長さ方向に4倍以上、及び幅方向に1.5倍以上5倍以下の範囲で延伸されており、
前記PTFE繊維の密度が2g/cm3以下であり、
前記長繊維は、幅方向に広げたとき単繊維が部分的に解繊する網目構造を含み、
前記長繊維は、前記単繊維の集合体であることを特徴とするポリテトラフルオロエチレン繊維。 - 上記2軸延伸PTFEの熱処理温度が327℃以上400℃以下の範囲である請求項1に記載のPTFE繊維。
- 前記PTFE繊維の密度が1.62g/cm3以上1.8g/cm3以下である請求項1に記載のPTFE繊維。
- 前記PTFE長繊維が偏平状であり、厚さが5μm以上450μm以下の範囲である請求項1〜3のいずれかに記載のPTFE繊維。
- 前記PTFE長繊維の繊度が3dtex以上600dtex以下の範囲である請求項1〜4のいずれかに記載のPTFE繊維。
- 前記PTFE長繊維には分枝があり、前記PTFE繊維70mm当たりの分枝数が2〜4個である請求項1〜5のいずれかに記載のPTFE繊維。
- 請求項1〜6のいずれかの長繊維を切断することにより得られる分枝構造を含む短繊維であることを特徴とするPTFE繊維。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008279221A JP4824732B2 (ja) | 2003-01-20 | 2008-10-30 | ポリテトラフルオロエチレン繊維 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003011626 | 2003-01-20 | ||
JP2003011626 | 2003-01-20 | ||
JP2008279221A JP4824732B2 (ja) | 2003-01-20 | 2008-10-30 | ポリテトラフルオロエチレン繊維 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004009378A Division JP4231797B2 (ja) | 2003-01-20 | 2004-01-16 | ポリテトラフルオロエチレン繊維の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009019330A true JP2009019330A (ja) | 2009-01-29 |
JP4824732B2 JP4824732B2 (ja) | 2011-11-30 |
Family
ID=32588604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008279221A Expired - Lifetime JP4824732B2 (ja) | 2003-01-20 | 2008-10-30 | ポリテトラフルオロエチレン繊維 |
Country Status (5)
Country | Link |
---|---|
US (1) | US6949287B2 (ja) |
EP (1) | EP1439247B1 (ja) |
JP (1) | JP4824732B2 (ja) |
DE (1) | DE602004024468D1 (ja) |
HK (1) | HK1068379A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011001642A (ja) * | 2009-06-17 | 2011-01-06 | Umei Taikako Kofun Yugenkoshi | ポリテトラフルオロエチレン実撚糸及びその製造方法 |
KR102347993B1 (ko) * | 2021-08-19 | 2022-01-07 | 대한에프앤드에프(주) | Ptfe 테이프 및 그 제조방법 |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005133260A (ja) * | 2003-10-31 | 2005-05-26 | Unitika Ltd | 複合紙状物 |
CN100425746C (zh) * | 2004-03-09 | 2008-10-15 | 宇明泰化工股份有限公司 | 聚四氟乙烯纤维及其制造方法 |
US7108912B2 (en) * | 2004-03-09 | 2006-09-19 | Yeu Ming Tai Chemical Industrial Co., Ltd. | Polytetrafluoroethylene fiber and method for manufacturing the same |
US20060166578A1 (en) * | 2005-01-21 | 2006-07-27 | Myers Kasey R | Process for creating fabrics with branched fibrils and such fibrillated fabrics |
US20060182962A1 (en) * | 2005-02-11 | 2006-08-17 | Bucher Richard A | Fluoropolymer fiber composite bundle |
US9334587B2 (en) * | 2005-02-11 | 2016-05-10 | W. L. Gore & Associates, Inc. | Fluoropolymer fiber composite bundle |
US20110129657A1 (en) * | 2005-02-11 | 2011-06-02 | Norman Clough | Ballistic Resistant Composite Fabric |
US7296394B2 (en) * | 2005-02-11 | 2007-11-20 | Gore Enterprise Holdings, Inc. | Fluoropolymer fiber composite bundle |
JP4804061B2 (ja) * | 2005-07-29 | 2011-10-26 | 日本ゴア株式会社 | ポリテトラフルオロエチレン製のスリットヤーン |
US7409815B2 (en) | 2005-09-02 | 2008-08-12 | Gore Enterprise Holdings, Inc. | Wire rope incorporating fluoropolymer fiber |
CN101074499B (zh) * | 2006-05-18 | 2010-09-08 | 上海市凌桥环保设备厂有限公司 | 一种聚四氟乙烯长纤维的制造方法 |
CN101074500B (zh) * | 2006-05-18 | 2010-09-01 | 上海市凌桥环保设备厂有限公司 | 一种聚四氟乙烯短纤维的制造方法 |
JP5366172B2 (ja) * | 2007-06-18 | 2013-12-11 | 日東電工株式会社 | ポリテトラフルオロエチレン繊維の製造方法、およびポリテトラフルオロエチレン繊維 |
JP5713677B2 (ja) * | 2008-09-30 | 2015-05-07 | 株式会社レイテック | 成形加工が可能なポリテトラフルオロエチレン樹脂と応用製品およびその製造方法 |
US8557358B1 (en) * | 2011-08-22 | 2013-10-15 | The United States Of America As Represented By The Secretary Of The Navy | Rolling textile protective system for textile structural members |
WO2015067326A1 (en) | 2013-11-08 | 2015-05-14 | Saint-Gobain Performance Plastics Corporation | Articles containing ptfe having improved dimensional stability particularly over long lengths, methods for making such articles, and cable/wire assemblies containing such articles |
KR101665926B1 (ko) * | 2015-04-28 | 2016-10-14 | 지중해산업(주) | 파단강도가 우수한 혼합 ptfe 실 제조방법 및 그 원료 제조 방법 |
CN105133064B (zh) * | 2015-08-31 | 2017-06-20 | 江苏泓彦塑料科技有限公司 | 一种ptfe短纤维的制备方法 |
CN111893591A (zh) * | 2020-08-11 | 2020-11-06 | 常州万容新材料科技有限公司 | 一种ptfe长纤的制备方法 |
CN113005545B (zh) * | 2021-03-09 | 2023-01-20 | 山东森荣新材料股份有限公司 | 聚四氟乙烯超细长丝的制备方法 |
CN115058784B (zh) * | 2022-06-24 | 2023-09-08 | 灵氟隆新材料科技江苏有限公司 | 一种高质量密度均匀度的聚四氟乙烯扁平长丝制备方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996000807A1 (fr) * | 1994-06-30 | 1996-01-11 | Daikin Industries, Ltd. | Fibre longue et fil fendu gonflants de polytetrafluoroethylene et leurs procedes de fabrication, procede de fabrication d'une substance cotonneuse a base de cette fibre et de ce fil, et tamis de filtre arretant la poussiere |
JP3079571B2 (ja) * | 1993-04-05 | 2000-08-21 | ダイキン工業株式会社 | ポリテトラフルオロエチレン繊維,それを含む綿状物およびその製造方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2772444A (en) | 1954-08-12 | 1956-12-04 | Du Pont | Composition comprising a polyhalogenated ethylene polymer and viscose and process of shaping the same |
CA962021A (en) | 1970-05-21 | 1975-02-04 | Robert W. Gore | Porous products and process therefor |
GB1531720A (en) * | 1974-12-13 | 1978-11-08 | Tba Industrial Products Ltd | Process for producing polytetrafluoroethylene products |
US6080472A (en) * | 1979-11-27 | 2000-06-27 | Yeu Ming Tai Chemical Ind. Co., Ltd. | Porous polytetrafluoroethylene molded article |
AT391473B (de) * | 1989-04-06 | 1990-10-10 | Chemiefaser Lenzing Ag | Monoaxial verstreckter formkoerper aus polytetrafluoraethylen und verfahren zu seiner herstellung |
US5220932A (en) * | 1990-12-20 | 1993-06-22 | Westone Products Limited | Dental floss and method of making it |
-
2004
- 2004-01-20 DE DE200460024468 patent/DE602004024468D1/de not_active Expired - Lifetime
- 2004-01-20 US US10/760,863 patent/US6949287B2/en not_active Expired - Lifetime
- 2004-01-20 EP EP20040001104 patent/EP1439247B1/en not_active Expired - Lifetime
-
2005
- 2005-01-17 HK HK05100451A patent/HK1068379A1/xx not_active IP Right Cessation
-
2008
- 2008-10-30 JP JP2008279221A patent/JP4824732B2/ja not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3079571B2 (ja) * | 1993-04-05 | 2000-08-21 | ダイキン工業株式会社 | ポリテトラフルオロエチレン繊維,それを含む綿状物およびその製造方法 |
WO1996000807A1 (fr) * | 1994-06-30 | 1996-01-11 | Daikin Industries, Ltd. | Fibre longue et fil fendu gonflants de polytetrafluoroethylene et leurs procedes de fabrication, procede de fabrication d'une substance cotonneuse a base de cette fibre et de ce fil, et tamis de filtre arretant la poussiere |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011001642A (ja) * | 2009-06-17 | 2011-01-06 | Umei Taikako Kofun Yugenkoshi | ポリテトラフルオロエチレン実撚糸及びその製造方法 |
KR102347993B1 (ko) * | 2021-08-19 | 2022-01-07 | 대한에프앤드에프(주) | Ptfe 테이프 및 그 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
HK1068379A1 (en) | 2005-04-29 |
EP1439247A1 (en) | 2004-07-21 |
US6949287B2 (en) | 2005-09-27 |
US20040175567A1 (en) | 2004-09-09 |
EP1439247B1 (en) | 2009-12-09 |
JP4824732B2 (ja) | 2011-11-30 |
DE602004024468D1 (de) | 2010-01-21 |
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