BR9902001A - Process for the manufacture of filaments, particularly ptfe filaments, and installation for their execution - Google Patents

Process for the manufacture of filaments, particularly ptfe filaments, and installation for their execution

Info

Publication number
BR9902001A
BR9902001A BR9902001A BR9902001A BR9902001A BR 9902001 A BR9902001 A BR 9902001A BR 9902001 A BR9902001 A BR 9902001A BR 9902001 A BR9902001 A BR 9902001A BR 9902001 A BR9902001 A BR 9902001A
Authority
BR
Brazil
Prior art keywords
filaments
tape
installation
stretching
execution
Prior art date
Application number
BR9902001A
Other languages
Portuguese (pt)
Inventor
Luigi Biancheri
Original Assignee
Partic Manegro Administracao E
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 Partic Manegro Administracao E filed Critical Partic Manegro Administracao E
Priority to BR9902001A priority Critical patent/BR9902001A/en
Priority to PCT/BR2000/000016 priority patent/WO2000052238A1/en
Priority to AU26523/00A priority patent/AU2652300A/en
Publication of BR9902001A publication Critical patent/BR9902001A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
    • 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
    • D01D5/426—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by cutting films
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Inorganic Fibers (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

Patente de Invenção: <B>"PROCESSO PARA A FABRICAçãO DE FILAMENTOS, PARTICULARMENTE FILAMENTOS DE PTFE, E INSTALAçãO PARA SUA EXECUçãO"<D>. Descreve-se um processo e uma instalação para a fabricação de filamentos, particularmente filamentos de PTFE, a partir de uma fita. De forma a obter filamentos com pequeno título, porém com alta resistência à ruptura, o processo de acordo com a invenção inclui as seguintes etapas: - estirar a fita mediante aplicação simultânea de calor; - cortar a fita de modo a se produzir filamentos individuais; e - estirar os filamentos mediante simultânea aplicação de calor, sendo que na etapa de estirar a fita, expõe-se a fita a uma temperatura entre 240°C e 350°C e na etapa de estirar os filamentos, expõem-se os filamentos a uma temperatura entre 330°C e 420°C e sendo que nas etapas de estiragem da fita e dos filamentos, a taxa de estiragem se encontra na faixa de 50 a 10.000 %/seg.Invention Patent: <B> "PROCESS FOR THE MANUFACTURE OF FILAMENTS, PARTICULARLY PTFE FILAMENTS, AND INSTALLATION FOR THEIR EXECUTION" <D>. A process and an installation for the production of filaments, particularly PTFE filaments, from a tape is described. In order to obtain filaments with a small title, but with high resistance to breakage, the process according to the invention includes the following steps: - stretching the tape by applying simultaneous heat; - cut the ribbon to produce individual filaments; and - stretch the filaments by simultaneously applying heat, and in the stage of stretching the tape, the tape is exposed to a temperature between 240 ° C and 350 ° C and in the stage of stretching the filaments, the filaments are exposed to a temperature between 330 ° C and 420 ° C and the stretching rate is in the range of 50 to 10,000% / sec in the stages of drawing the tape and filaments.

BR9902001A 1999-02-26 1999-02-26 Process for the manufacture of filaments, particularly ptfe filaments, and installation for their execution BR9902001A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR9902001A BR9902001A (en) 1999-02-26 1999-02-26 Process for the manufacture of filaments, particularly ptfe filaments, and installation for their execution
PCT/BR2000/000016 WO2000052238A1 (en) 1999-02-26 2000-02-25 A process for the manufacture of filaments, particularly ptfe filaments, and an installation for carrying it out
AU26523/00A AU2652300A (en) 1999-02-26 2000-02-25 A process for the manufacture of filaments, particularly ptfe filaments, and an installation for carrying it out

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR9902001A BR9902001A (en) 1999-02-26 1999-02-26 Process for the manufacture of filaments, particularly ptfe filaments, and installation for their execution

Publications (1)

Publication Number Publication Date
BR9902001A true BR9902001A (en) 2001-05-22

Family

ID=4072524

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9902001A BR9902001A (en) 1999-02-26 1999-02-26 Process for the manufacture of filaments, particularly ptfe filaments, and installation for their execution

Country Status (3)

Country Link
AU (1) AU2652300A (en)
BR (1) BR9902001A (en)
WO (1) WO2000052238A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105887225A (en) * 2014-10-31 2016-08-24 陈路 Film splitting drafting device used for manufacturing PTFE sewing thread
CN105887264A (en) * 2014-10-31 2016-08-24 陈路 Technology for manufacturing PTFE sewing threads with film splitting method
CN105887222A (en) * 2014-10-31 2016-08-24 陈路 Film drafting device used for manufacturing PTFE sewing thread
CN105648556A (en) * 2014-10-31 2016-06-08 陈路 Drawing machine making PTFE sewing thread
CN105887215A (en) * 2014-10-31 2016-08-24 陈路 Process for manufacturing PTFE sewing thread through extrusion method
CN105970397A (en) * 2016-07-19 2016-09-28 苏州耐德新材料科技有限公司 Polytetrafluoroethylene monofilament drafting and heating device
CN106012062B (en) * 2016-08-02 2018-10-23 苏州耐德新材料科技有限公司 A kind of production method of polytetrafluoroethylene (PTFE) continuous filament yarn
CN110055603B (en) * 2019-04-24 2020-07-17 浙江绿净环保科技股份有限公司 Structure for marking PTFE sewing thread
CN113062000B (en) * 2021-03-15 2022-07-22 上海灵氟隆膜技术有限公司 Preparation method and system of polytetrafluoroethylene dental floss
CN113201812A (en) * 2021-05-31 2021-08-03 青岛大学 Full-automatic production line and production process for PTFE split fiber twisted yarn

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO1994002668A1 (en) * 1992-07-16 1994-02-03 W.L. Gore & Associates, Inc. Polytetrafluoroethylene fiber containing conductive filler
US5591526A (en) * 1994-06-15 1997-01-07 W. L. Gore & Associates, Inc Expanded PTFE fiber and fabric and method of making same

Also Published As

Publication number Publication date
WO2000052238A1 (en) 2000-09-08
AU2652300A (en) 2000-09-21

Similar Documents

Publication Publication Date Title
BR9902001A (en) Process for the manufacture of filaments, particularly ptfe filaments, and installation for their execution
BR0215338A (en) Photochromic polymer composition and photochromic article
BR9814682A (en) Process for itemifying the strength of the polypropylene melt, polypropylene having an itemified melt strength, and, process for the production of a thermoformed or stripped material, molded, spun or blown, extruded, based on a polypropylene
BR0317837A (en) IMPLANT ARRANGEMENT
BR9406541A (en) Process for the production of cellulose filaments from a cellulose solution in an organic solvent spinning cell for the coagulation of filaments and cellulose formed from a cellulose solution in an organic solvent and cellulose filaments
TR200302088T3 (en) Plant for continuous production of a woven wool line
BR8300847A (en) HEAT RESPONSIVE PACIFIER SET AND PROCESS TO PRODUCE A HEAT RESPONSIVE PACIFIER SET
BR7600041A (en) SURGICAL SUTURE, COATING COMPOSITION, AND PROCESS TO IMPROVE THE TYPING CHARACTERISTICS OF A MULTIFILAMENT SUTURE
BRPI0704975A (en) method and device for the manufacture of a cellulosic filament spinning bonded fabric
BR0211699A (en) Process for preparing a modified clay, modified clay, and polymer clay nanocomposite
BRPI0418128A (en) Method for reducing the brightness reversal of mechanical pulps and high yield chemical pulps
BR0113365A (en) Medical thermometer and method for producing a medical thermometer
FR2378724A1 (en) METHOD AND APPARATUS FOR MANUFACTURING OPTICAL GLASS FIBERS
BRPI0517172A (en) article compositions comprising duplicate microstructures
BR0214281A (en) Process and mechanism for crystallization of polytrimethylene terephthalate (ptt)
KR910002968A (en) Polyimide Film and Manufacturing Method Thereof
BR0309231A (en) Thermally Conductive Biological Test Tray, and Method for Manufacturing
BR8805107A (en) COATINGS RESISTANT TO THE THERMAL CYCLE OF HIGH TEMPERATURES ON SUBSTRATES BASED ON SILICON, AND PROCESS FOR THE PRODUCTION OF THE SAME
ES2078943T3 (en) COPOLYMER PRODUCTION.
BR9915153A (en) Article, assembly, and process.
BR9910842A (en) Elastane yarns and process for their preparation
BRPI0515229A (en) process for the manufacture of sachets
BR9904637A (en) Process for heat treating thermotropic liquid crystalline polymer filaments
BR9904126A (en) Process for the manufacture of high denier filaments of liquid thermotropic crystalline polymers and their compositions
ATE50005T1 (en) PROCESS FOR MAKING A POLYESTER-POY WEFT.

Legal Events

Date Code Title Description
B07A Technical examination (opinion): publication of technical examination (opinion)
B09B Decision: refusal

Free format text: INDEFIRO O PRESENTE PEDIDO DE PATENTE COMO INVENCAO - DE ACORDO COM O ART 8O DA LPI.