EP3980196B1 - Verfahren zum beschichten von kfz-felgen - Google Patents

Verfahren zum beschichten von kfz-felgen Download PDF

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Publication number
EP3980196B1
EP3980196B1 EP20733895.5A EP20733895A EP3980196B1 EP 3980196 B1 EP3980196 B1 EP 3980196B1 EP 20733895 A EP20733895 A EP 20733895A EP 3980196 B1 EP3980196 B1 EP 3980196B1
Authority
EP
European Patent Office
Prior art keywords
layer
polymer
decor
intermediate layer
motor vehicle
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
EP20733895.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3980196A1 (de
Inventor
Beata Kucharska
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to HRP20231203TT priority Critical patent/HRP20231203T1/hr
Publication of EP3980196A1 publication Critical patent/EP3980196A1/de
Application granted granted Critical
Publication of EP3980196B1 publication Critical patent/EP3980196B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B05D7/14—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 to metal, e.g. car bodies
    • 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
    • B05D5/067—Metallic effect
    • B05D5/068—Metallic effect achieved by multilayers
    • 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
    • B05D7/56—Three layers or more
    • B05D7/57—Three layers or more the last layer being a clear coat
    • 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
    • B05D2202/10—Metallic substrate based on Fe
    • 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
    • B05D2202/20—Metallic substrate based on light metals
    • B05D2202/25—Metallic substrate based on light metals based on Al
    • 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
    • B05D2420/00—Indexing scheme corresponding to the position of each layer within a multilayer coating relative to the substrate
    • B05D2420/02—Indexing scheme corresponding to the position of each layer within a multilayer coating relative to the substrate second layer from the substrate side
    • 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
    • B05D2420/00—Indexing scheme corresponding to the position of each layer within a multilayer coating relative to the substrate
    • B05D2420/03—Indexing scheme corresponding to the position of each layer within a multilayer coating relative to the substrate third layer from the substrate side

Definitions

  • the effect achieved according to the invention is due to the fact that the platelet-shaped metal pigments in the decorative layer (C) are due to the special application technique (wet spraying process), the small layer thickness (2 ⁇ m), the drying at ambient temperature and the subsequent thermal fixing at more than 140 °C are kept parallel to the high-gloss surface of the polymer intermediate layer in such a way that they remain essentially parallel to this high-gloss surface when the subsequent layers are applied and thus retain the optical impression of a shiny metallic surface.
  • the high cross-cut tear resistance gives the entire coating package the necessary cohesion.
  • the invention based on the method of the type mentioned at the outset, proposes that the decorative layer (C) be coated with a transparent colored glaze (L) before the polymer cover layer (D) is applied.
  • the substrate to be coated i.e. here a motor vehicle wheel rim made of all aluminum or steel, is denoted by the reference symbol S.
  • the surface of this substrate S to be coated is first processed using the mechanical methods customary for this purpose, i.e. smoothed and cleaned as well as possible.
  • a polymer primer layer A is then applied to this surface of the substrate--with or without chemical pretreatment--using the usual methods, which leveles out the unevenness of the mechanical processing.
  • This polymer primer layer A contains sufficient amounts of fillers to even out rough unevenness in the metallic surface of the substrate S.
  • a high-gloss powder coating is then applied to the surface of this polymer primer layer A as the polymer intermediate layer B. It is of essential importance that the surface of this polymer intermediate layer B is really high-gloss, ie has a degree of gloss of more than 95 according to DIN 67530/ISO 2813. Such high-gloss surfaces are in principle available with different, commercially available paint systems available.
  • a PU powder coating system is preferably used for the polymer intermediate layer B in the method according to the invention.
  • a decorative layer C is then applied to the polymer intermediate layer B, the layer former of which is a thermally curable polymer and which contains platelet-shaped metal pigments, so-called flakes, as decoration, which cover the visible surface of the decorative layer C.
  • This decorative layer C is applied to the high-gloss surface of the polymer intermediate layer B using a wet spraying process with a maximum layer thickness of 2 ⁇ m and consists of a coating composition that dries in less than 10 seconds at an ambient temperature of 15 °C to 25 °C in this layer thickness.
  • Coating compositions with these physical properties are available on the market in different versions.
  • the platelet-shaped metal pigments contained in the very thin decorative layer C according to the invention are oriented essentially parallel to the high-gloss surface of the polymer intermediate layer B and thereby create the optical impression of a coherent, polished metallic surface. Because the decorative layer C is additionally fixed to the high-gloss surface of the polymer intermediate layer by the heating explained above, this orientation is not lost even when further layers are finally applied.
  • the decorative layer (C) is then covered with a translucent colored glaze L.
  • a commercially available powder coating suitable for rim coating is used in the exemplary embodiment, which is colored (e.g. red, blue, yellow or green) and is so translucent that the glossy metal pigments underneath can be seen through the glaze L (Flakes) of the decorative layer C remain visible.
  • This polymer top layer D has the usual properties of such coating systems and protects the entire coating package and the underlying coated substrate S against mechanical damage such as e.g. B. Rockfall

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)
EP20733895.5A 2019-06-05 2020-05-28 Verfahren zum beschichten von kfz-felgen Active EP3980196B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HRP20231203TT HRP20231203T1 (hr) 2019-06-05 2020-05-28 Postupak premazivanja naplataka kotača motornih vozila

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019115172.4A DE102019115172A1 (de) 2019-06-05 2019-06-05 Verfahren zum Beschichten von Kfz-Felgen
PCT/EP2020/064907 WO2020245034A1 (de) 2019-06-05 2020-05-28 Verfahren zum beschichten von kfz-felgen

Publications (2)

Publication Number Publication Date
EP3980196A1 EP3980196A1 (de) 2022-04-13
EP3980196B1 true EP3980196B1 (de) 2023-07-05

Family

ID=71111389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20733895.5A Active EP3980196B1 (de) 2019-06-05 2020-05-28 Verfahren zum beschichten von kfz-felgen

Country Status (7)

Country Link
EP (1) EP3980196B1 (pl)
DE (1) DE102019115172A1 (pl)
ES (1) ES2960208T3 (pl)
HR (1) HRP20231203T1 (pl)
HU (1) HUE063296T2 (pl)
PL (1) PL3980196T3 (pl)
WO (1) WO2020245034A1 (pl)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005152841A (ja) * 2003-11-27 2005-06-16 Hitachi Metals Ltd 金属調塗膜及び車両用ホイール
JP2007126116A (ja) * 2005-10-06 2007-05-24 Hitachi Metals Ltd 光輝性軽合金ホイールおよびその塗膜形成方法
DE102006048631A1 (de) * 2006-10-13 2008-04-17 Sandy Endlendt Chromeffektlack, Chromeffektlackierung und Lackierverfahren

Also Published As

Publication number Publication date
DE102019115172A1 (de) 2020-12-10
HUE063296T2 (hu) 2024-01-28
EP3980196A1 (de) 2022-04-13
ES2960208T3 (es) 2024-03-01
WO2020245034A1 (de) 2020-12-10
PL3980196T3 (pl) 2023-12-11
HRP20231203T1 (hr) 2024-01-19

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