DE602005017321D1 - Polytetrafluoroethylene fiber and process for its preparation - Google Patents

Polytetrafluoroethylene fiber and process for its preparation

Info

Publication number
DE602005017321D1
DE602005017321D1 DE602005017321T DE602005017321T DE602005017321D1 DE 602005017321 D1 DE602005017321 D1 DE 602005017321D1 DE 602005017321 T DE602005017321 T DE 602005017321T DE 602005017321 T DE602005017321 T DE 602005017321T DE 602005017321 D1 DE602005017321 D1 DE 602005017321D1
Authority
DE
Germany
Prior art keywords
ptfe
film
fiber
filament
fineness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE602005017321T
Other languages
German (de)
Inventor
James Huang
Chin-Chun Chou
Chin-Cha Chou
Shia-Chung Chen
Wen-I Kuo
Lei-Ti Huang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yeu Ming Tai Chemical Industrial Co Ltd
Original Assignee
Yeu Ming Tai Chemical Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yeu Ming Tai Chemical Industrial Co Ltd filed Critical Yeu Ming Tai Chemical Industrial Co Ltd
Publication of DE602005017321D1 publication Critical patent/DE602005017321D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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

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

A polytetrafluoroethylene (PTFE) fiber includes a filament (1) obtained by partially slitting an oriented PTFE film in a lengthwise direction of the film. Emboss processing is conducted linearly along the lengthwise direction of the film and like a zigzag shape or a convexo-concave shape in a width direction of the film, followed by slitting, whereby the filament (1) includes a network structure (3) in which single fibrils (2) that are opened partially are arranged regularly. A PTFE short fiber is obtained by cutting the above filament and includes a branch structure. Thereby, a PTFE fiber with a small average fineness of single fibrils, a uniform fineness and a single-peak distribution with the peak at a center of fineness and with a high production yield and uniform and stable branch structure can be provided and a method for manufacturing the PTFE fiber can be provided. <IMAGE>
DE602005017321T 2004-03-09 2005-03-09 Polytetrafluoroethylene fiber and process for its preparation Active DE602005017321D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004065889 2004-03-09
JP2004290687 2004-10-01

Publications (1)

Publication Number Publication Date
DE602005017321D1 true DE602005017321D1 (en) 2009-12-10

Family

ID=34829493

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005017321T Active DE602005017321D1 (en) 2004-03-09 2005-03-09 Polytetrafluoroethylene fiber and process for its preparation

Country Status (4)

Country Link
EP (1) EP1574603B1 (en)
CN (1) CN100425746C (en)
AT (1) ATE447055T1 (en)
DE (1) DE602005017321D1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101074499B (en) * 2006-05-18 2010-09-08 上海市凌桥环保设备厂有限公司 Method for producing polytef amosite
CN101074500B (en) * 2006-05-18 2010-09-01 上海市凌桥环保设备厂有限公司 Method for producing polytef flocks
CN100451189C (en) * 2006-11-29 2009-01-14 浙江理工大学 Gel preparation method for polytetrafluoroethylene fibre
US20080166938A1 (en) * 2007-01-09 2008-07-10 Teadit Industria E Comercio Ltda. Microfiber split film filter felt and method of making same
CN101716442A (en) * 2008-10-10 2010-06-02 东丽纤维研究所（中国）有限公司 Industrial filtering cloth used for liquid filter and application
JP5364461B2 (en) * 2009-06-17 2013-12-11 宇明泰化工股▲ふん▼有限公司 Polytetrafluoroethylene twisted yarn and method for producing the same
CN102071483A (en) * 2010-11-22 2011-05-25 宋朋泽 Preparation method of polytetrafluoroethylene chopped fiber
CN102560714A (en) * 2010-12-27 2012-07-11 山东嘉年华氟纶有限公司 PTFE (Polytetrafluoroethylene) low-shrinkage crimped chopped fiber for filter needled-punched felt and manufacturing method of PTFE low-shrinkage crimped chopped fiber
CN113215672A (en) * 2021-03-02 2021-08-06 上海灵氟隆膜技术有限公司 Preparation method of polytetrafluoroethylene continuous filament for fuel cell diaphragm

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550826A (en) * 1968-07-03 1970-12-29 Chevron Res Method for preparing extremely fine fibrous webs
SE392582B (en) * 1970-05-21 1977-04-04 Gore & Ass PROCEDURE FOR THE PREPARATION OF A POROST MATERIAL, BY EXPANDING AND STRETCHING A TETRAFLUORETENE POLYMER PREPARED IN AN PASTE-FORMING EXTENSION PROCEDURE
ATE175248T1 (en) * 1993-04-05 1999-01-15 Daikin Ind Ltd POLYTETRAFLUORETHYLENE FIBER, COTTON-LIKE MATERIAL CONTAINING SUCH FIBER, AND METHOD FOR THE PRODUCTION THEREOF
ATE233333T1 (en) * 1994-06-30 2003-03-15 Daikin Ind Ltd VOLUMINOUS LONG FIBER AND SPLIT YARN MADE OF POLYTETRAFLUORETHYTENE, METHOD FOR PRODUCING SAME AND PRODUCING COTTON-LIKE MATERIAL USING SUCH FIBER AND YARN AND FABRIC FOR DUST FILTER
DE602004024468D1 (en) * 2003-01-20 2010-01-21 Yeu Ming Tai Chemical Ind Co L Polytetrafluoroethylene fiber and process for its preparation

Also Published As

Publication number Publication date
EP1574603A1 (en) 2005-09-14
EP1574603B1 (en) 2009-10-28
ATE447055T1 (en) 2009-11-15
CN1676688A (en) 2005-10-05
CN100425746C (en) 2008-10-15

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