EP1518609B1 - Verfahren zur dekorierung von metallteilen mittels verwendung eines pulverlacks - Google Patents

Verfahren zur dekorierung von metallteilen mittels verwendung eines pulverlacks Download PDF

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Publication number
EP1518609B1
EP1518609B1 EP02730308A EP02730308A EP1518609B1 EP 1518609 B1 EP1518609 B1 EP 1518609B1 EP 02730308 A EP02730308 A EP 02730308A EP 02730308 A EP02730308 A EP 02730308A EP 1518609 B1 EP1518609 B1 EP 1518609B1
Authority
EP
European Patent Office
Prior art keywords
paint
application
process according
heat treatment
powder
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.)
Expired - Lifetime
Application number
EP02730308A
Other languages
English (en)
French (fr)
Other versions
EP1518609A1 (de
Inventor
Elia Maria Alvarez Sanchis
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.)
Hig Tecnic S L
Hig-Tecnic SL
Original Assignee
Hig Tecnic S L
Hig-Tecnic SL
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 Hig Tecnic S L, Hig-Tecnic SL filed Critical Hig Tecnic S L
Publication of EP1518609A1 publication Critical patent/EP1518609A1/de
Application granted granted Critical
Publication of EP1518609B1 publication Critical patent/EP1518609B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F9/00—Designs imitating natural patterns
    • B44F9/04—Designs imitating natural patterns of stone surfaces, e.g. marble
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
    • B44D5/00—Surface treatment to obtain special artistic surface effects or finishes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F9/00—Designs imitating natural patterns
    • B44F9/02—Designs imitating natural patterns wood grain effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
    • B05D1/06—Applying particulate materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B05D3/0263—After-treatment with IR heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/53—Base coat plus clear coat type
    • B05D7/536—Base coat plus clear coat type each layer being cured, at least partially, separately
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/546—No clear coat specified each layer being cured, at least partially, separately

Definitions

  • the present invention comprises a process for the decoration of metallic parts in general, and preferably of aluminium or iron profiles to which it is desired to apply a decorative coat imitating a natural finish such as marble, wood, etc.
  • the object of the present invention is to provide a process for decoration in which the decorative motif can be reproduced with great precision offering therefore a very high quality finish, and at the same time permitting that the parts to be treated can be manipulated during the decoration stage without this affecting the final quality of the decorative effect.
  • the present invention is of application in the field of decorating metallic pieces, and in particular in the decoration of aluminium or iron profiles by means of the application of powder paints.
  • the procedure for decoration disclosed in the present invention resolves satisfactorily the shortcomings of the procedures known at the present time, since it allows the decoration of metallic pieces with an extremely high degree of accuracy in the reproduction of decorative designs, and therefore it provides a finish of a quality much superior to the procedures for decoration known in the state of the art.
  • the procedure object of the invention starts from a first conventional stage, wherein a first polyester-based powder paint is deposited electrostatically on a metallic part to be decorated, such as for example an aluminium or iron part. Likewise in a conventional manner, this first powder paint is subjected to a heat treatment.
  • the innovation of the invention resides in the application by means of screen printing of a second powder paint with a particle size less than 40 microns, in contrast to habitual practice in these techniques, and all this with the object of achieving a very high definition in the reproduction of the decorative motif through the use of a very fine powder. In this way it is possible to reproduce details, like for example the grain of wood, with a precision that would not be possible with the procedures known at the present time.
  • this second powder paint with a selected grain size is subjected to a heat treatment in localised areas to fix it on the first paint.
  • the heat treatment consists of the application of radiation, preferably an infrared radiation, with the object of heating the second paint until the same reaches a gelled state which produces its adherence on the first coat of base paint, and which in this way allows the manipulation of the metallic piece to be decorated without the risk of the particles of the second paint moving and deforming the decorative design.
  • the process of the present invention achieves in this way levels of definition in the reproduction of a decorative motif much superior to those obtained by means of conventional decoration techniques.
  • the procedure for decoration object of the present invention comprises the following stages:

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)

Claims (9)

  1. Verfahren zum Dekorieren von metallischen Teilen mittels Auftragen eines Pulverlacks mit dem Ziel, einen hohes Maß an Präzision bei der Reproduktion der dekorativen Formgebung zu erreichen, in welchem die folgenden Schritte ablaufen: Auftragen eines ersten Pulverlacks mittels einer elektrostatischen Beschichtung auf der zu dekorierenden metallischen Oberfläche, Wärmebehandlung des ersten Lacks, Auftragen eines zweiten Pulverlacks in ausgewählten Bereichen des ersten Lacks mittels eines Siedrucknetzes, um eine dekorative Form zu erhalten, und eine abschließende Wärmebehandlung des ersten und zweiten Lacks, um die Verbundpolymerisation beider Lacke zu erreichen, dadurch gekennzeichnet, dass die Größe der Teilchen, welche den zweiten Pulverlack bilden, kleiner als 40 Mikrometer ist, und dass der zweite Lack nach seinem Auftragen mit Hilfe des Siedrucknetzes und vor der abschließenden Wärmebehandlung einer Wärmebehandlung durch Einsatz einer Infrarotstrahlung in lokalisierten Bereichen ausgesetzt wird, mit dem Ziel, diesen zweiten Pulverlack in einen gelierten Zustand zu versetzen, welcher sein Anhaften an dem ersten Lack zur Folge hat, mit dem Ziel, das Handhaben des metallischen Teils zu erleichtern, ohne dass es zu einer Verschiebung der Teilchen des zweiten Lackes kommt.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Größe der Teilchen des zweiten Pukverlackes zwischen 5 und 30 Mikrometern liegt.
  3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Wärmebehandlung, welcher der erste Lack zu Beginn ausgesetzt wird, bei einer Temperatur von 130 °C während eines Zeitraums zwischen 4 und 6 Minuten ausgeführt wird.
  4. Verfahren nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, dass das Siebdrucknetz nur den Durchgang von Pulverteilchen kleiner als 40 Mikrometer erlaubt.
  5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Infrarotstrahlung eine kurze Wellenlänge aufweist, wobei ihre Maximalenergie zwischen 1000 und 1200 nm vorliegt.
  6. Verfahren nach den Ansprüchen 1 und 5, dadurch gekennzeichnet, dass die Infrarotstrahlung mit Hilfe eines elliptischen Reflektors fokussiert wird, der derart angeordnet ist, dass die maximale Strahlenkonzentration bei einer Entfernung zwischen 10 und 30 mm von der Oberfläche des Metallstücks erhalten wird.
  7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass der Abstand, bei dem die Maximalstrahlung erhalten wird, zwischen 15 und 17 mm liegt.
  8. Verfahren nach den Ansprüchen 1, 5, 6 oder 7, dadurch gekennzeichnet, dass die Einwirkungszeit der Infrarotstrahlung zwischen 1 und 10 Sekunden, vorzugsweise zwischen 2 und 4 Sekunden, liegt.
  9. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Abschluß- und Verbundwärmebehandlung des ersten und zweiten Lacks bei einer Temperatur zwischen 160 und 220 °C der Metalltemperatur und während einer Zeit zwischen 8 und 20 Minuten ausgeführt wird.
EP02730308A 2002-05-07 2002-05-07 Verfahren zur dekorierung von metallteilen mittels verwendung eines pulverlacks Expired - Lifetime EP1518609B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2002/000214 WO2003095109A1 (es) 2002-05-07 2002-05-07 Procedimiento de decoración de piezas metálicas mediante la aplicación de pintura en polvo

Publications (2)

Publication Number Publication Date
EP1518609A1 EP1518609A1 (de) 2005-03-30
EP1518609B1 true EP1518609B1 (de) 2005-10-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02730308A Expired - Lifetime EP1518609B1 (de) 2002-05-07 2002-05-07 Verfahren zur dekorierung von metallteilen mittels verwendung eines pulverlacks

Country Status (7)

Country Link
EP (1) EP1518609B1 (de)
AT (1) ATE307682T1 (de)
AU (1) AU2002302655A1 (de)
DE (1) DE60206974D1 (de)
ES (1) ES2250649T3 (de)
MX (1) MXPA04011081A (de)
WO (1) WO2003095109A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050132930A1 (en) * 2003-12-23 2005-06-23 Schlegel Grant E. Antique and faux finish powder coatings and powder coating methods
ITRM20090327A1 (it) * 2009-06-25 2010-12-26 Univ Roma Procedimento di verniciatura multistrato
ITMI20110455A1 (it) 2011-03-23 2012-09-24 Lasa Impianti Srl Procedimento e apparecchiatura per la decorazione di oggetti con inchiostri o vernici liquide
US8628824B2 (en) * 2011-11-15 2014-01-14 Pi-Chu Li Manufacture method for forming antique color on metal surface
DE102014009945A1 (de) 2014-07-04 2016-01-07 Dürr Systems GmbH Lackierverfahren und Lackieranlage zur Dekorlackierung
EP4245426B1 (de) * 2022-03-16 2024-05-01 Enviral Oberflächenveredelung GmbH Optimierte pulverbeschichtungstechnik zur beschichtung von metalloberflächen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685351B1 (fr) * 1991-12-18 1994-04-29 Sauvegrain Christian Procede de decoration d'une surface metallique.
JPH07116391B2 (ja) * 1992-03-09 1995-12-13 菊水化学工業株式会社 塗料組成物およびその使用方法
ATE226853T1 (de) * 1995-08-07 2002-11-15 Mida Srl Verfahren zum beschichten und dekorieren von oberflächen im allgemeinen
PT818248E (pt) * 1996-06-12 2001-03-30 Vergani Esterina Processo para pintar placas e seccoes metalicas

Also Published As

Publication number Publication date
AU2002302655A1 (en) 2003-11-11
WO2003095109A1 (es) 2003-11-20
EP1518609A1 (de) 2005-03-30
ATE307682T1 (de) 2005-11-15
ES2250649T3 (es) 2006-04-16
MXPA04011081A (es) 2005-09-08
DE60206974D1 (de) 2005-12-01

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