AR246313A1 - Procedimiento para manufacturar un hilado multifilamento de poliester,los hilados obtenidos,cordones formados por dichos hilados retorcidos y objetos elastomericos que los incluyen - Google Patents

Procedimiento para manufacturar un hilado multifilamento de poliester,los hilados obtenidos,cordones formados por dichos hilados retorcidos y objetos elastomericos que los incluyen

Info

Publication number
AR246313A1
AR246313A1 AR30355886A AR30355886A AR246313A1 AR 246313 A1 AR246313 A1 AR 246313A1 AR 30355886 A AR30355886 A AR 30355886A AR 30355886 A AR30355886 A AR 30355886A AR 246313 A1 AR246313 A1 AR 246313A1
Authority
AR
Argentina
Prior art keywords
yarn
zone
cord
manufacture
numerous
Prior art date
Application number
AR30355886A
Other languages
English (en)
Spanish (es)
Original Assignee
Akzo Nv
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19845798&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AR246313(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Akzo Nv filed Critical Akzo Nv
Application granted granted Critical
Publication of AR246313A1 publication Critical patent/AR246313A1/es

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/48—Tyre cords
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0042—Reinforcements made of synthetic materials
    • 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
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • 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
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • 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
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/26—Composite fibers made of two or more materials
    • 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
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • 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
    • Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Multicomponent Fibers (AREA)
  • Artificial Filaments (AREA)
  • Tires In General (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Reinforced Plastic Materials (AREA)
AR30355886A 1985-04-04 1986-04-03 Procedimiento para manufacturar un hilado multifilamento de poliester,los hilados obtenidos,cordones formados por dichos hilados retorcidos y objetos elastomericos que los incluyen AR246313A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8501019 1985-04-04

Publications (1)

Publication Number Publication Date
AR246313A1 true AR246313A1 (es) 1994-07-29

Family

ID=19845798

Family Applications (1)

Application Number Title Priority Date Filing Date
AR30355886A AR246313A1 (es) 1985-04-04 1986-04-03 Procedimiento para manufacturar un hilado multifilamento de poliester,los hilados obtenidos,cordones formados por dichos hilados retorcidos y objetos elastomericos que los incluyen

Country Status (13)

Country Link
US (2) US4867925A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0201114B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JP2585528B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
KR (1) KR930011950B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CN (1) CN1012910B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AR (1) AR246313A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE54962T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR8601506A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3672885D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES8703542A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IN (1) IN167096B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
MX (1) MX169295B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ZA (1) ZA862483B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8700617A (nl) * 1987-03-16 1988-10-17 Akzo Nv Werkwijze voor het vervaardigen van garens door het smeltspinnen van polyethyleentereftalaat.
JP2659724B2 (ja) * 1987-10-07 1997-09-30 東レ株式会社 高強度複合繊維の製造方法
EP0319940A1 (de) * 1987-12-09 1989-06-14 Hoechst Aktiengesellschaft Fahrzeugreifen
US5468555A (en) * 1989-05-16 1995-11-21 Akzo N.V. Yarn formed from core-sheath filaments and production thereof
EP0455831B1 (en) * 1989-11-30 1997-09-03 Asahi Kasei Kogyo Kabushiki Kaisha Crimped multifilament and production thereof
GB9016885D0 (en) * 1990-08-01 1990-09-12 Scras Sustained release pharmaceutical compositions
FR2671030A1 (fr) * 1990-12-27 1992-07-03 Michelin Rech Tech Assemblages de renfort avec monofilaments en polymeres organiques.
MX9304488A (es) * 1992-08-10 1994-02-28 Akzo Nv Hilo de poliester con buena adhesion al caucho y procedimiento para su preparacion.
US5593629A (en) * 1995-02-22 1997-01-14 Wellman, Inc. Method for increased productivity of industrial fiber
US5624754A (en) * 1995-10-26 1997-04-29 Hoechst Celanese Corp. Rubber-polyester composites including a sidechain containing copolyester
US5597651A (en) * 1995-10-26 1997-01-28 Hoechst Celanese Corp. Rubber-polyester composites including polystyrene-polyester copolymers
JP3782902B2 (ja) * 1999-06-24 2006-06-07 帝人ファイバー株式会社 表面特性の改善された高強力モノフィラメントの製造方法
DE19937729A1 (de) * 1999-08-10 2001-02-15 Lurgi Zimmer Ag Hochfeste Polyesterfäden und Verfahren zu deren Herstellung
DE19937728A1 (de) 1999-08-10 2001-02-15 Lurgi Zimmer Ag HMLS-Fäden aus Polyester und Spinnstreckverfahren zu deren Herstellung
US6332994B1 (en) 2000-02-14 2001-12-25 Basf Corporation High speed spinning of sheath/core bicomponent fibers
EP1305460A4 (en) * 2000-07-07 2006-04-19 Garland Ind Inc REINFORCEMENT MAT WITH THERMALLY WELDED EMBROIDERY
US7960299B2 (en) * 2000-07-07 2011-06-14 Garland Industries, Inc. Reinforcing mat having thermally fused stitching
US6670034B2 (en) * 2001-10-18 2003-12-30 Shakespeare Company, Llc Single ingredient, multi-structural filaments
PT1521869E (pt) * 2002-07-05 2012-01-03 Api Inst Método de fiação
MXPA04012278A (es) 2002-12-23 2005-02-25 Du Pont Proceso de fibra bicomponente de poli(tereftalato de trimetileno).
JP4433725B2 (ja) * 2003-08-28 2010-03-17 横浜ゴム株式会社 空気入りラジアルタイヤ
ES2339039T3 (es) * 2004-09-24 2010-05-14 The Yokohama Rubber Co., Ltd. Neumatico radial para camiones ligeros.
BRPI0608379A2 (pt) * 2005-07-28 2010-11-16 Teijin Fibers Ltd monofilamento de poliéster compósito do tipo revestimento-núcleo, método de fiação em fusão do monofilamento de poliéster, e, guarnição de fiação para o monofilamento de poliéster
DE102006015878B4 (de) * 2006-04-05 2015-12-17 Nexans Flexible elektrische Steuerleitung
US20080166517A1 (en) * 2007-01-10 2008-07-10 Garland Industries, Inc. Reinforced fabric having a thermally fused mat
US7495176B2 (en) 2007-04-10 2009-02-24 Nexans Flexible electric control cable
US20110175249A1 (en) * 2008-09-26 2011-07-21 Hirofumi Yamamoto Polyester monofilament, method for producing same, and method for producing screen gauze using same
DE102009025793A1 (de) * 2009-02-19 2010-08-26 Continental Reifen Deutschland Gmbh Fahrzeugluftreifen
KR101414224B1 (ko) * 2010-09-30 2014-07-02 코오롱인더스트리 주식회사 폴리에스테르 섬유 및 그의 제조방법
DE202011005577U1 (de) † 2011-04-21 2012-07-24 Rehau Ag + Co Schlauch zur Führung von Fluiden
EP2799599B1 (en) * 2011-12-30 2019-07-10 Kolon Industries, Inc. Drawn polyethylene terephthalate fiber, polyethylene terephthalate tyre cord and method for producing same
CA2915810C (en) * 2013-06-20 2021-10-19 Furanix Technologies B.V. Process for the preparation of a fiber, a fiber and a yarn made from such a fiber
CN104746208A (zh) * 2015-03-29 2015-07-01 浙江海利得新材料股份有限公司 用于乘用子午线轮胎冠带层的1670dtex/2PEN浸胶帘子布及其制备方法
JP2017053060A (ja) * 2015-09-08 2017-03-16 株式会社ブリヂストン Ｐｅｆ原糸の製造方法、ｐｅｆ原糸及びタイヤ
CN105177788B (zh) * 2015-10-20 2017-08-22 联新（开平）高性能纤维有限公司 一种涤纶帘子线，其制备方法及其在斜交轮胎中的应用
CN106948091B (zh) * 2017-04-19 2023-06-20 广东必得福医卫科技股份有限公司 一种单向拉伸弹性无纺布生产设备
CN108823678A (zh) * 2018-05-24 2018-11-16 东华大学 一种均质纤维及其制备方法
CN109665293A (zh) * 2019-02-27 2019-04-23 岳西十行机械设备有限公司 一种纤维连续化卸料方法
US20240060217A1 (en) * 2021-01-25 2024-02-22 Toray Industries, Inc. Composite fiber, composite mixed-filament fiber including same, woven/knitted fabric, and garment
US12269384B2 (en) 2021-03-31 2025-04-08 Lear Corporation Seat support
US12319183B2 (en) * 2021-03-31 2025-06-03 Lear Corporation Seat support
US11807143B2 (en) 2021-12-02 2023-11-07 Lear Corporation Vehicle seating system and method for producing same
US12325168B2 (en) 2021-12-20 2025-06-10 Lear Corporation System and method of making a mesh cushion
US12384094B2 (en) 2022-03-08 2025-08-12 Lear Corporation Method for producing a vehicle interior component
US12325624B2 (en) 2023-03-06 2025-06-10 Lear Corporation Seat assembly, cushion, and tool and method of forming
US12286044B2 (en) 2023-05-12 2025-04-29 Lear Corporation Method and apparatus for producing a vehicle interior component
EP4574861A1 (de) * 2023-12-21 2025-06-25 Ems-Chemie Ag Wässrige tauchbadzusammensetzungen zur behandlung von verstärkungseinlagen und deren verwendung sowie verfahren zur herstellung einer haftenden verstärkungseinlage

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL287359A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1962-01-02
DE1238610B (de) * 1964-02-21 1967-04-13 Hoechst Ag Verfahren zur Herstellung von kraeuselbaren Faeden aus synthetischen linearen Polymeren
GB1157433A (en) * 1965-10-06 1969-07-09 Ici Ltd Polyester Fibres
NL6512920A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1965-10-06 1965-11-25
JPS4421170Y1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1966-07-25 1969-09-08
GB1179436A (en) * 1967-05-22 1970-01-28 Ici Ltd Helically Crimped Filamentary Materials
GB1228640A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1967-10-18 1971-04-15
GB1179615A (en) * 1967-12-05 1970-01-28 Ici Ltd Producing Conjugate Filaments by Melt Extrusion
DE1760987B2 (de) * 1968-07-30 1976-04-01 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen herstellung von polyamid-6-bikomponentenfaeden
US3963678A (en) * 1974-06-17 1976-06-15 E. I. Du Pont De Nemours And Company Large denier polyethylene terephthalate monofilaments having good transverse properties
JPS6030771B2 (ja) * 1976-01-20 1985-07-18 帝人株式会社 ポリエステル繊維不織布の製造方法
US4134882A (en) * 1976-06-11 1979-01-16 E. I. Du Pont De Nemours And Company Poly(ethylene terephthalate)filaments
US4195051A (en) * 1976-06-11 1980-03-25 E. I. Du Pont De Nemours And Company Process for preparing new polyester filaments
US4195052A (en) * 1976-10-26 1980-03-25 Celanese Corporation Production of improved polyester filaments of high strength possessing an unusually stable internal structure
JPS56104221A (en) * 1980-01-25 1981-08-19 Toshiba Corp Water gauge
JPS6014246B2 (ja) * 1980-04-21 1985-04-12 日本鋼管株式会社 熱設備の燃焼制御方法
ZA8289B (en) * 1981-01-15 1982-11-24 Akzo Nv Synthetic technical multifilament yarn and process for the manufacture thereof
EP0056963B2 (en) * 1981-01-19 1991-01-02 Asahi Kasei Kogyo Kabushiki Kaisha Polyester fiber dyeable under normal pressure and process for the production thereof
JPS57144106A (en) * 1981-03-04 1982-09-06 Toyo Tire & Rubber Co Ltd Pneumatic tire of high uniformity
JPS57149513A (en) * 1981-03-05 1982-09-16 Teijin Ltd Polyester conjugate fiber of high elasticity and low shrinkage
JPS5812804A (ja) * 1981-07-15 1983-01-25 Toray Ind Inc 空気入りタイヤ
JPS5898419A (ja) * 1981-12-02 1983-06-11 Touyoubou Pet Koode Kk 熱寸法安定性および化学安定性にすぐれると同時に高強度を有するポリエステル繊維
JPS58104221A (ja) * 1981-12-14 1983-06-21 Teijin Ltd ポリエステル複合繊維
JPS5966507A (ja) * 1982-10-01 1984-04-16 Toyobo Co Ltd 高速紡糸方法
JPS5966508A (ja) * 1982-10-01 1984-04-16 Toyobo Co Ltd 溶融紡糸方法
JPS59144615A (ja) * 1983-02-02 1984-08-18 Kureha Chem Ind Co Ltd 非捲縮複合モノフイラメント及びその製造方法

Also Published As

Publication number Publication date
EP0201114B2 (en) 1995-10-04
CN86102179A (zh) 1986-11-12
BR8601506A (pt) 1986-12-09
US5092381A (en) 1992-03-03
JPS6297921A (ja) 1987-05-07
EP0201114B1 (en) 1990-07-25
IN167096B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-09-01
KR860008309A (ko) 1986-11-14
ES8703542A1 (es) 1987-02-16
KR930011950B1 (ko) 1993-12-22
JP2585528B2 (ja) 1997-02-26
DE3672885D1 (de) 1990-08-30
EP0201114A1 (en) 1986-11-12
ES553677A0 (es) 1987-02-16
ATE54962T1 (de) 1990-08-15
CN1012910B (zh) 1991-06-19
ZA862483B (en) 1986-11-26
MX169295B (es) 1993-06-28
US4867925A (en) 1989-09-19

Similar Documents

Publication Publication Date Title
AR246313A1 (es) Procedimiento para manufacturar un hilado multifilamento de poliester,los hilados obtenidos,cordones formados por dichos hilados retorcidos y objetos elastomericos que los incluyen
ES8307306A1 (es) "un procedimiento para la obtencion de filamentos de polietileno".
ES2030168T3 (es) Formacion de rollos de fibras.
AR247538A1 (es) Un procedimiento de formacion de fibras a partir de un material termoplastico y producto aislante conformado
ES2110549T3 (es) Metodo y aparato para la produccion de lana mineral y lana mineral producida por aquellos.
JPS57128213A (en) Filament with high tensile strength and elasticity and production thereof
ES2047022T3 (es) Procedimiento de hilatura por fusion.
ES2031002T3 (es) Cubierta de neumatico.
GB1381882A (en) Process for the production of physically modified synthetic fibres
ES2071998T5 (es) Hilado fundido de filamentos cristalinos ultra-orientados.
MX157886A (es) Procedimiento para la fabricacion de hilos textiles sobre la base de fibras de vidrio y los hilos textiles fabricados por el mismo
BE859091A (fr) Procede de detection des ruptures de filaments de fibre de verre en cours d'etirage
GB1350948A (en) Preparation of polyurethane filaments
JPS5263418A (en) Spinning process of combined thermoplastic filament yarns
DE68917982D1 (de) Stahlcord mit hoher Bruchfestigkeit und mit diesem Stahlcord verstärkte Radialluftreifen.
ES2031557T3 (es) Dispositivo para la sustitucion conjunta de los tubos de bobinas en una maquina textil, particularmente en una maquina continua de hilar de anillos.
ES8207105A1 (es) Un metodo de fabricar fibras de vidrio.
SE8701858D0 (sv) Fuse tube with reinforcing element
JPS5415023A (en) Production of hollow modified cross-section polyamide filament yarns
GB610171A (en) Improvements in woven fabrics
JPS5358028A (en) Production of polyester fibers for reinforcing
FR2214000A1 (en) Tyre reinforcement material - with cladded wefts to give thermal bonding with the warps
ES2111143T3 (es) Procedimiento para la realizacion de elementos tubulares de fibras ligadas por resina sintetica destinados a encajarse unos dentro de otros para formar una caña de pescar cuya accion es controlada y elementos obtenidos por este procedimiento.
FR757256A (fr) Dispositif pour la fabrication d'articles tubulaires, notamment d'enveloppes pour corps en forme de cordons ou de tubes, de fils tubulaires pour textiles, etc., et pour tissus tissés ou tricotés fabriqués en fil tubulaire
IT1087359B (it) Procedimento e dispositivo per la rimozione pneumatica di nastri di fibre,eventualmente con estremita' separata del filato,da un rotore di filatura open end