EP0256422A1 - Laser-markierbares, elektrisches Kabel - Google Patents

Laser-markierbares, elektrisches Kabel Download PDF

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Publication number
EP0256422A1
EP0256422A1 EP87111246A EP87111246A EP0256422A1 EP 0256422 A1 EP0256422 A1 EP 0256422A1 EP 87111246 A EP87111246 A EP 87111246A EP 87111246 A EP87111246 A EP 87111246A EP 0256422 A1 EP0256422 A1 EP 0256422A1
Authority
EP
European Patent Office
Prior art keywords
layer
cable according
outer layer
color
electric cable
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.)
Granted
Application number
EP87111246A
Other languages
English (en)
French (fr)
Other versions
EP0256422B1 (de
Inventor
Jean-Pierre Ferlier
Michel Maréchal
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.)
Filotex SA
Original Assignee
Filotex SA
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 Filotex SA filed Critical Filotex SA
Publication of EP0256422A1 publication Critical patent/EP0256422A1/de
Application granted granted Critical
Publication of EP0256422B1 publication Critical patent/EP0256422B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/34—Apparatus or processes specially adapted for manufacturing conductors or cables for marking conductors or cables
    • H01B13/348—Apparatus or processes specially adapted for manufacturing conductors or cables for marking conductors or cables using radiant energy, e.g. a laser beam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/267—Marking of plastic artifacts, e.g. with laser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B7/00—Machines, apparatus or hand tools for branding, e.g. using radiant energy such as laser beams
    • B44B7/002—Machines, apparatus or hand tools for branding, e.g. using radiant energy such as laser beams in layered material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
    • H01B7/365—Insulated conductors or cables characterised by their form with distinguishing or length marks being indicia imposed on the insulation or conductor

Definitions

  • the invention relates to a laser-marking electric cable.
  • German patent No. 3147230 discloses a cable whose outer surface first receives by spraying a color coating which is cured by RF waves or infrared before being burned by laser radiation .
  • this document is concerned only with the surface burning obtained by laser radiation.
  • a US patent 4,370,542 claims the marking of a cable by laser, but it in fact only relates to the relative positioning of this cable and of the laser source.
  • Against by the present invention relates to a particular arrangement of the outer layer of an electric cable allowing marking by laser beam.
  • an electric cable markable by laser comprising an outer layer allowing the realization of such a marking, characterized in that this outer layer is of contrasting color compared to the color of an absorbent undercoat at the wavelength of the laser beam, this outer layer being a thin layer which, during marking, is destroyed throughout its thickness by the laser beam so as to allow the sublayer to appear.
  • the invention provides an electrical cable in which the outer layer is light in color and the sublayer in dark color, and in which the outer layer has a thickness of between 5 and 50 micrometers.
  • FIG. 1 illustrates the marking by laser beam according to the invention.
  • a ray 10 from a laser source 11 is directed towards the surface of an electrical cable 12.
  • This cable comprises a thin outer layer 13, for example between 5 and 50 micrometers, which surrounds an underlayer 14. This layer exterior is destroyed throughout its thickness at the point of impact 15 of the laser beam thereon, thus revealing the sub-layer 14 which absorbs said laser beam.
  • This outer layer 13 being of a contrasting color, for example clear, with respect to the sub-layer, for example dark, the invention makes it possible to obtain a quality marking.
  • This sublayer 14 can be pigmented in dark brown or black so as to promote the absorption of the laser beam and allow contrast with the outer layer 13.
  • the pigments used can be dark brown pigments "Brown Sicopal K 2795" from the company BASF or black pigments "FA 2306" from the company FERRO, or a combination of pigments, for example based on the two pigments mentioned.
  • the minimum thickness of such a sub-layer 14 is such that it makes it possible to stop the penetration of the laser beam 10.
  • this radial thickness is of the order of 25 micrometers.
  • this thickness is of the order of 15 micrometers.
  • the pigment concentration must be between 5 and 15% with the first type of undercoat and between 30 and 35% with the second type of undercoat, so as to preserve good mechanical strength of this undercoat. -layer and to obtain sufficient coloring.
  • the outer layer 13 must be such that it allows just the necessary absorption of the laser beam to cause its own pyrolysis. It must indeed be the least absorbent possible while remaining burnable by the laser beam.
  • PTFE polytetrafluoroethylene
  • BAYER a product of the company BAYER composed of "Desmophen F951" which is a polyol and "Desmodur CT” which is a polyisocyanate, in solution for example in a mixture of cresol and xylene.
  • the pigmentation of this layer 13 can be obtained using a white pigment of titanium dioxide in all its forms, rutile or anatase for example, such as "Kronos RN59" from the company NL Chemicals.
  • This white pigment can be used alone or mixed with colored pigments in small quantities to obtain clear or pastel shades.
  • the thickness of such a layer has a maximum value depending on the type of laser used and its emission power. Indeed, this laser must be able to volatilize this layer to reveal the dark underlay 14.
  • the thickness of this layer must preferably be between 5 and 20 micrometers with an outer layer 13 of the first type. considered, and between 5 and 25 micrometers with an outer layer 13 of the second type considered.
  • This sublayer is then pigmented in the same way as sublayer 14, so that all of the polyimide and polyamide sublayer has a minimum thickness of the order of 15 micrometers.
  • varnishes used are baked according to the traditional processes used in the enameled wire industry, for example by multi-pass coating with dynamic baking in the "parade” oven obtained by the process known as "in die”, or the process known as “dipping” ".
  • varnish deposition techniques such as for example electrophoresis, electrostatic powdering and / or in a fluidized bath.
  • the laser marking according to the invention can be carried out on a machine of the type described in US Pat. No. 4,370,542 which allows relative positioning of a cable and a laser source.
  • Such a marking can also be carried out by moving a mask in front of a wide laser beam, for example obtained from a CO2 laser (“mask” method), the laser beam being focused after having passed through said mask.
  • a wide laser beam for example obtained from a CO2 laser (“mask” method
  • FIGS. 2 and 3 represent two examples of embodiment of such cables which can be marked by laser according to the invention.
  • the cable illustrated in Figure 2 consists of: - a central conductor 16 made of copper, or copper alloy, or aluminum, or aluminum alloy, protected or not by a coating metallic (tin, nickel, silver, etc ...) - a three-layer insulation comprising: . two taped layers 17 and 18 made of polyimide back-coated with adhesive or thermosetting, joined together by heat treatment ("Kapfon F", “Kapfon HFE” trademarks of Du Pont de Nemours, "Upilex F” trademark by UBE Industriels, "Apica AF” trademark registered by KANEGAFUCHI). . a third external layer consisting of all 3 varnishes 20, 21, 19 deposited successively: layer 20 in black polyimide, layer 21 in black aromatic polyamide, layer 19 in white polyurethane; these 3 varnishes have a service temperature above 150 ° C.
  • the cable illustrated in Figure 3 consists of: - a central conductor 16; - a three-layer insulation comprising: . a first ribbon layer 17 made of polyimide as described in the previous example. . a second tape or extruded layer 22, made of thermoplastic material with a melting temperature greater than or equal to 150 ° C., joined together by heat treatment: polytetrafluoroethylene ("Teflon PTFE", registered trademark of Du Pont de Nemours), perfluoroalkoxy - polytetrafluoroethylene (“Teflon PFA ", registered trademark Du Pont de Nemours," Hostaflon TFA “registered trademark Hoechst), polytetrafluoprethylene-propylene (“ Teflon FEP “, registered trademark Du Pont de Nemours), polyethylene-tetrafluoroethylene (“ Tefzel “, registered trademark Du Pont de Nemours) , polyvinylidene fluoride ("Kynar”, trademark Pennwalt), poly
  • the marking according to the invention can also be applied to constructions of electric cables, in particular for aerospace use, with improved electrical characteristics, described in French Patent No. 2,555,799.
  • the cable according to the invention therefore allows marking which consists in burning a thin external layer, existing or added for the occasion, the gaps thus created in this layer revealing the underlying insulation. This must satisfy the electrical, mechanical, etc. clauses imposed on the cable, and in addition must be able to resist laser radiation, the power of which is adjusted to the level just necessary to burn the outer thin layer.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Insulated Conductors (AREA)
EP87111246A 1986-08-05 1987-08-04 Laser-markierbares, elektrisches Kabel Expired - Lifetime EP0256422B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8611319 1986-08-05
FR8611319A FR2602904B1 (fr) 1986-08-05 1986-08-05 Cable electrique marquable par laser

Publications (2)

Publication Number Publication Date
EP0256422A1 true EP0256422A1 (de) 1988-02-24
EP0256422B1 EP0256422B1 (de) 1991-07-10

Family

ID=9338042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87111246A Expired - Lifetime EP0256422B1 (de) 1986-08-05 1987-08-04 Laser-markierbares, elektrisches Kabel

Country Status (6)

Country Link
US (1) US4808966A (de)
EP (1) EP0256422B1 (de)
CA (1) CA1287133C (de)
DE (1) DE3771283D1 (de)
ES (1) ES2023153B3 (de)
FR (1) FR2602904B1 (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321091A2 (de) * 1987-11-12 1989-06-21 BICC Public Limited Company Markierung von Oberflächen aus fluorkohlenstoffhaltigen Polymeren
GB2215116A (en) * 1988-02-05 1989-09-13 British Aerospace Marking cables by use of a laser
FR2648270A1 (fr) * 1989-06-09 1990-12-14 Fileca Sa Cable a revetement marquable par laser
EP0415674A2 (de) * 1989-09-01 1991-03-06 AT&T Corp. Markierter Gegenstand und Verfahren zu seiner Herstellung
EP0443639A1 (de) * 1990-01-25 1991-08-28 Johnson & Johnson Clinical Diagnostics, Inc. Verbesserungen in Markieren mittels Laser von Kunststoffartikeln
EP0480802A1 (de) * 1990-10-11 1992-04-15 AEROSPATIALE Société Nationale Industrielle Kennzeichnungsverfahren und -Maschine für ein elektrisches Kabel
US5474627A (en) * 1990-10-11 1995-12-12 Aerospatiale Societe Nationale Industrielle Method for marking an electric cable
US5697390A (en) * 1993-01-29 1997-12-16 Coltec Industries Inc Process for producing filled polytetrafluoroethylene resin composite materials and products
US7008989B2 (en) 2000-11-14 2006-03-07 Coltec Industrial Products, Inc. Abrasion-resistant polytetrafluoroethylene tape
US9040825B2 (en) 2007-11-13 2015-05-26 Southwire Company, Llc Conductors and metal-covered cable with coded information and method of applying coded information
US9053841B2 (en) 2007-11-13 2015-06-09 Southwire Company, Llc Traceable and theft deterrent reclaimable product
US9818508B2 (en) 2007-11-13 2017-11-14 Southwire Company, Llc Traceable and theft deterrent reclaimable product
US10102461B2 (en) 2007-11-13 2018-10-16 Southwire Company, Llc Traceable and theft deterrent reclaimable product
EP2605224B1 (de) * 2007-11-13 2018-12-26 Southwire Company, LLC Rückverfolgbares und diebstahlgesichertes, zurückforderbares Produkt
FR3089433A1 (fr) * 2018-12-10 2020-06-12 Exel Industries Procédé de formation d’au moins un motif sur une pièce

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5130721A (en) * 1989-01-09 1992-07-14 General Laser, Inc. Laser wire marking method and apparatus
FR2656734B1 (fr) * 1990-01-03 1992-03-20 Filotex Sa Cable electrique ou a fibres optiques marquable par plusieurs types de lasers.
US4970367A (en) * 1990-02-02 1990-11-13 Miller Richard T Laser wire stripper apparatus and method therefor
US5248878A (en) * 1991-02-25 1993-09-28 Bridgestone Corporation Golf ball marking method
DE4134271C1 (de) * 1991-10-17 1992-12-24 Leonhard Kurz Gmbh & Co, 8510 Fuerth, De
US5239158A (en) * 1992-04-15 1993-08-24 Eaton Corporation Laser marking of molded hand grips
FR2691670B1 (fr) * 1992-05-26 1994-08-26 Plastic Omnium Cie Ruban en polytétrafluoroéthylène apte au marquage par laser.
US5501827A (en) * 1993-01-29 1996-03-26 Garlock Inc. Laser markable polytetrafluoroethylene resin material and method of making
FR2732030B1 (fr) * 1995-03-20 1997-04-30 Plastic Omnium Cie Meteriau de revetement a base de polytetrafluoroethylene apte au marquage par laser.
JPH09123606A (ja) * 1995-11-02 1997-05-13 Dainippon Printing Co Ltd レーザー印字用積層体およびその印字体
US5853955A (en) * 1995-12-11 1998-12-29 Mcdonnell Douglas Corp. Substrates and methods for laser marking same
JP3766468B2 (ja) * 1996-04-18 2006-04-12 麒麟麦酒株式会社 レーザ印字用媒体
DE19812314A1 (de) 1998-03-20 1999-09-23 Siemens Ag Ummantelung
US6370304B1 (en) 1998-09-28 2002-04-09 Corning Cable Systems Llc Radiation marking of fiber optic cable components
US6207902B1 (en) * 1999-04-01 2001-03-27 Richard J. Balaguer Electrical wiring cable with color contrast abrasion wear indicator
JP2003501275A (ja) * 1999-06-08 2003-01-14 バイオマイクロ システムズ インコーポレイテッド ドープされたフッ化炭素材料のレーザアブレーション並びにその用途
JP4465822B2 (ja) * 2000-06-29 2010-05-26 パナソニック株式会社 マグネットワイヤの半田付方法
US20030215592A1 (en) * 2002-05-14 2003-11-20 3M Innovative Properties Company Imageable multi-wall elastic sleeves
JP2008026054A (ja) * 2006-07-19 2008-02-07 Seiko Instruments Inc 識別コード表示用テープ
CN100481275C (zh) * 2007-01-24 2009-04-22 兴宁市金雁电工有限公司 C级聚氨酯漆包线的生产方法
US7633013B2 (en) * 2008-03-24 2009-12-15 Nexans Colored foaming polymer composition
TW201037035A (en) * 2009-04-01 2010-10-16 Microcosm Technology Co Ltd Polyimide film having sheltering property and application thereof and preparation method thereof
US9800110B2 (en) * 2012-04-20 2017-10-24 Summit Esp, Llc System and method for enhanced magnet wire insulation
JP6043611B2 (ja) * 2012-12-07 2016-12-14 矢崎総業株式会社 同軸ケーブル
US10770202B1 (en) * 2013-02-21 2020-09-08 Southwire Company, Llc Striped cable and process and apparatus for making same
US10256009B2 (en) 2014-06-19 2019-04-09 Saint-Gobain Performance Plastics Corporation Laser-markable insulation material for wire or cable assemblies
US9881714B2 (en) 2014-06-19 2018-01-30 Saint-Gobain Performance Plastics Corporation Laser-markable insulation material for wire or cable assemblies
CA3014987A1 (en) * 2016-02-19 2017-08-24 General Cable Technologies Corporation Laser-markable cables and systems for making the same
EP3821449A1 (de) * 2018-07-10 2021-05-19 Brar Electromeccanica S.p.A. Wassergekühltes elektrisches kabel und verfahren zu seiner herstellung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3505916A (en) * 1968-05-15 1970-04-14 Adolph W Brandt Spiral striped insulator conductor and spiral striping means
DE3147230A1 (de) * 1981-11-28 1983-06-09 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Verfahren zum aufbringen von zeichen auf einen langgestreckten gegenstand
FR2555799A1 (fr) * 1983-11-25 1985-05-31 Filotex Sa Cable electrique, notamment pour usage aerospatial, a caracteristiques electriques ameliorees

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1321540A (en) * 1970-10-08 1973-06-27 Tokyo Shibaura Electric Co Current limitting element
JPS6054727B2 (ja) * 1980-01-31 1985-12-02 株式会社デンソー 雑音防止用高圧抵抗電線
DE3162096D1 (en) * 1980-05-22 1984-03-08 Westland Plc Cable marking method and apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3505916A (en) * 1968-05-15 1970-04-14 Adolph W Brandt Spiral striped insulator conductor and spiral striping means
DE3147230A1 (de) * 1981-11-28 1983-06-09 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Verfahren zum aufbringen von zeichen auf einen langgestreckten gegenstand
FR2555799A1 (fr) * 1983-11-25 1985-05-31 Filotex Sa Cable electrique, notamment pour usage aerospatial, a caracteristiques electriques ameliorees

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321091A3 (en) * 1987-11-12 1990-11-14 Bicc Public Limited Company Marking fluorocarbon surfaces
EP0321091A2 (de) * 1987-11-12 1989-06-21 BICC Public Limited Company Markierung von Oberflächen aus fluorkohlenstoffhaltigen Polymeren
GB2215116B (en) * 1988-02-05 1992-07-29 British Aerospace A method of marking a cable or tube with a laser.
GB2215116A (en) * 1988-02-05 1989-09-13 British Aerospace Marking cables by use of a laser
FR2648270A1 (fr) * 1989-06-09 1990-12-14 Fileca Sa Cable a revetement marquable par laser
EP0415674A2 (de) * 1989-09-01 1991-03-06 AT&T Corp. Markierter Gegenstand und Verfahren zu seiner Herstellung
EP0415674A3 (en) * 1989-09-01 1991-11-27 American Telephone And Telegraph Company Article having marking thereon and methods of making
EP0443639A1 (de) * 1990-01-25 1991-08-28 Johnson & Johnson Clinical Diagnostics, Inc. Verbesserungen in Markieren mittels Laser von Kunststoffartikeln
FR2667977A1 (fr) * 1990-10-11 1992-04-17 Aerospatiale Procede et machine de marquage d'un cable electrique.
WO1992007367A1 (fr) * 1990-10-11 1992-04-30 Aerospatiale Societe Nationale Industrielle Procede et machine de marquage d'un cable electrique
EP0480802A1 (de) * 1990-10-11 1992-04-15 AEROSPATIALE Société Nationale Industrielle Kennzeichnungsverfahren und -Maschine für ein elektrisches Kabel
US5474627A (en) * 1990-10-11 1995-12-12 Aerospatiale Societe Nationale Industrielle Method for marking an electric cable
US5827391A (en) * 1990-10-11 1998-10-27 Aerospatiale Societe Nationale Industrielle Machine for marking an electric cable
US5697390A (en) * 1993-01-29 1997-12-16 Coltec Industries Inc Process for producing filled polytetrafluoroethylene resin composite materials and products
US7008989B2 (en) 2000-11-14 2006-03-07 Coltec Industrial Products, Inc. Abrasion-resistant polytetrafluoroethylene tape
US9040825B2 (en) 2007-11-13 2015-05-26 Southwire Company, Llc Conductors and metal-covered cable with coded information and method of applying coded information
US9053841B2 (en) 2007-11-13 2015-06-09 Southwire Company, Llc Traceable and theft deterrent reclaimable product
US9818508B2 (en) 2007-11-13 2017-11-14 Southwire Company, Llc Traceable and theft deterrent reclaimable product
US9887023B2 (en) 2007-11-13 2018-02-06 Southwire Company, Llc Traceable and theft deterrent reclaimable product
US10102461B2 (en) 2007-11-13 2018-10-16 Southwire Company, Llc Traceable and theft deterrent reclaimable product
EP2605224B1 (de) * 2007-11-13 2018-12-26 Southwire Company, LLC Rückverfolgbares und diebstahlgesichertes, zurückforderbares Produkt
FR3089433A1 (fr) * 2018-12-10 2020-06-12 Exel Industries Procédé de formation d’au moins un motif sur une pièce

Also Published As

Publication number Publication date
FR2602904A1 (fr) 1988-02-19
EP0256422B1 (de) 1991-07-10
US4808966A (en) 1989-02-28
DE3771283D1 (de) 1991-08-14
ES2023153B3 (es) 1992-01-01
FR2602904B1 (fr) 1989-12-01
CA1287133C (fr) 1991-07-30

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