EP2953733A1 - Painting method and painting facility for producing decorative strips - Google Patents

Painting method and painting facility for producing decorative strips

Info

Publication number
EP2953733A1
EP2953733A1 EP14704522.3A EP14704522A EP2953733A1 EP 2953733 A1 EP2953733 A1 EP 2953733A1 EP 14704522 A EP14704522 A EP 14704522A EP 2953733 A1 EP2953733 A1 EP 2953733A1
Authority
EP
European Patent Office
Prior art keywords
pattern
painting
wet
clearcoat
layer
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
EP14704522.3A
Other languages
German (de)
French (fr)
Other versions
EP2953733B1 (en
Inventor
Hans-Georg Fritz
Benjamin WÖHR
Marcus Kleiner
Timo Beyl
Frank Herre
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.)
Duerr Systems AG
Original Assignee
Duerr Systems AG
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
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Application filed by Duerr Systems AG filed Critical Duerr Systems AG
Publication of EP2953733A1 publication Critical patent/EP2953733A1/en
Application granted granted Critical
Publication of EP2953733B1 publication Critical patent/EP2953733B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • 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
    • B05D1/34—Applying different liquids or other fluent materials simultaneously
    • 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
    • B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate 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
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
    • B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate 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
    • B05D3/04—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 exposure to gases
    • 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
    • B05D5/065—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 having colour interferences or colour shifts or opalescent looking, flip-flop, two tones
    • B05D5/066—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 having colour interferences or colour shifts or opalescent looking, flip-flop, two tones 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
    • B05D7/572—Three layers or more the last layer being a clear coat all layers being cured or baked together
    • 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
    • B05D7/574—Three layers or more the last layer being a clear coat at least some layers being let to dry at least partially before applying the next layer
    • 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
    • B05D7/577—Three layers or more the last layer being a clear coat some layers being coated "wet-on-wet", the others not
    • 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
    • B05D7/578—No curing step for the last layer
    • B05D7/5783—No curing step for any layer
    • 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
    • B05D7/578—No curing step for the last layer
    • B05D7/5783—No curing step for any layer
    • B05D7/5785—No curing step for any layer all layers being applied simultaneously
    • 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

Definitions

  • the invention relates to a painting process for painting a component, in particular a Kraft mecanickosseriebau- part. Furthermore, the invention comprises a corresponding lacquering plant and a lacquer layer produced therewith on one side
  • FIG. 1 shows, by way of example, the multilayer structure of such a conventional paint on a motor vehicle body component 1.
  • the paint thus consists of a phosphate layer 2, a primer 3 made of a cathodic dip paint (KTL), a filler 4, a basecoat film 5, a clearcoat film 6, a pattern 7 (Eg, decorative strips) and a further applied to the pattern 7 further clearcoat layer.
  • FIG. 2 shows correspondingly in the form of a flow chart the painting process for painting the paint from FIG. 1.
  • the flow diagram begins in step S 1 with the application of the primer 3 from a cathode dip coating, but the phosphate coating 2 can still be applied in an upstream process step , which is not shown here.
  • a step S2 the filler layer 4 is then applied.
  • the basecoat film 5 is applied and in a step S4, the basecoat is dried.
  • the clearcoat film 6 is then applied in a step S5.
  • the clearcoat film is then baked in a step S6.
  • the pattern 7 is then applied manually, for example in the form of a decorative strip, which can be applied manually with a brush.
  • the pattern 7 in a step S8. between dried.
  • the further clearcoat layer 8 is then applied in a step S9 and in one
  • a disadvantage of this known method of applying a pattern is first the fact that the additional clearcoat layer 8 is required. Linked to this is the need for a further drying step.
  • Layer composite formed, comprising a support and a cured lacquer layer.
  • the layer composite is pressed onto the basecoat layer with the side of the hardened lacquer layer, after which the support can then be removed.
  • the application of the pattern does not take place in the context of a Lackiervons and therefore much more complex.
  • the invention is therefore based on the object to provide a correspondingly improved painting process and a corresponding paint shop.
  • the invention comprises the general technical teaching of applying the pattern (eg ornamental strip) to the basecoat layer without an intermediate clearcoat so that an additional clearcoat layer above the pattern can be dispensed with.
  • ckiervons is thus preferably applied only a single clear ⁇ paint layer, which not only covers the base coat layer, but also the pattern.
  • the formulation patterning used in the invention preferably refers to painting processes such as spraying or printing processes.
  • the pattern is thus preferably applied by an atomizer (eg rotary atomizer).
  • the invention differs from the cited document DE 10 2010 014 381 AI, in which a layer composite (carrier + cured lacquer layer) is pressed.
  • the term of a pattern in the context of the invention also includes graphics, images and the like.
  • Another example of a pattern is the painting of a partial surface (eg a roof rail of a motor vehicle bodywork) which is to be painted in a different color than the other motor vehicle bodywork.
  • the term of a pattern thus generally includes any partial surfaces of a component surface which are to be coated with another coating agent (for example in a different color) than the rest of the component surface.
  • pattern used in the context of the invention preferably means that the pattern covers only a partial area of the component surface, ie not the entire component surface.
  • the concept of a pattern preferably implies that the pattern is not continuous, but covers the component surface only with the respective pattern details (eg lines).
  • the pattern is applied directly to the basecoat layer. This means that neither a clearcoat layer is disposed between the basecoat film on the one hand and the pattern on the other hand, nor any other layer of a different material.
  • the basecoat film is only flashed off prior to application of the pattern and also the pattern (e.g., trim) is only flashed off prior to application of the clearcoat.
  • the basecoat film is intermediately dried prior to the application of the pattern, whereas the pattern is only flashed off before the application of the clearcoat.
  • Yet another variant of the invention provides for the basecoat layer to be flashed off before the application of the pattern, whereas the pattern is intermediately dried before the application of the clearcoat material.
  • the base coat layer is dried in between before the application of the pattern, as well as the pattern is between dried before the application of the clearcoat.
  • the basecoat film and the pattern are applied wet-on-wet without intermediate drying or venting. This means that the pattern is already applied at a time when the underlying basecoat layer has not yet completely dried, so that the wet paint of the pattern is applied to the still wet paint of the basecoat. Sislack Anlagen meets, which is why one speaks of "wet-in-wet" - paint.
  • the basecoat film, the pattern (for example a trim strip) and the clearcoat film to be applied wet-on-wet in a so-called 3-wet process without intermediate drying or flash-off.
  • the liquid paint of the pattern is applied at a time when the underlying basecoat layer is not yet completely dried.
  • the liquid clearcoat is applied at a time when the underneath paint of the pattern is not yet completely dried.
  • the three paints (base coat, paint of the pattern and clear coat) of the three superimposed paint layers so at least temporarily together still in a liquid state.
  • the base coat layer and the pattern are applied together in a paint booth, particularly in the aforementioned wet-on-wet process without intermediate drying or venting.
  • the pattern (e.g., trim) and the clear coat are applied together in a paint booth, especially in the wet-on-wet process mentioned above, without intermediate drying or flash off.
  • the basecoat film, the pattern and the clearcoat film are applied together in a paint booth, in particular the aforementioned 3-wet process without interim drying or venting.
  • the basecoat film, the pattern and / or the clearcoat film may be applied in a plurality of paint booths arranged one behind the other along a paint line.
  • the basecoat film, the pattern and / or the clearcoat film are each automatically applied by means of a multi-axis, freely programmable paint robot.
  • Such painting robots are known per se from the prior art and therefore need not be described in detail.
  • the pattern is preferably applied by an application device which dispenses no coating agent mist, but a narrowly defined coating agent jet.
  • application devices are known for example from DE 10 2010 019 612 AI, so that the content of this document of the present description is fully attributable.
  • the basecoat film and the clearcoat film are preferably applied by a conventional atomizer, such as a rotary atomizer.
  • the basecoat film, the pattern and the clearcoat film preferably consist of wet paint.
  • egg NEN powder coating for the basecoat film, the pattern and / or the clearcoat film instead of wet paint.
  • the invention also claims protection for a correspondingly constructed painting installation, which applies the pattern to the basecoat layer without an intermediate clearcoat.
  • FIG. 1 shows a cross-sectional view through the conventional motor vehicle paint described at the beginning with a pattern
  • FIG. 2 shows the conventional coating method described above for applying a pattern in the form of a flow chart
  • FIG. 3 shows a cross-sectional view through a multilayer varnish according to the invention with a pattern
  • FIG. 4A shows a flow chart to illustrate a variant of the coating method according to the invention
  • FIG. 4B shows a schematic illustration of a painting installation according to the invention for carrying out the painting method according to FIG. 4A
  • FIG. 5A shows a further flow chart of another variant of a coating method according to the invention
  • FIG. 5B shows a schematic representation of a painting installation according to the invention for carrying out the painting method according to FIG. 5A
  • FIG. 6A shows a further flow diagram of another variant of a painting method according to the invention
  • FIG. 6B shows a schematic representation of a painting installation according to the invention for carrying out the painting method according to FIG. 6A
  • Figure 7A is a flow chart illustrating another
  • FIG. 7B shows a schematic illustration to illustrate a painting installation for carrying out the painting method according to FIG. 7A, FIG.
  • FIG. 8A shows a flowchart for clarifying a coating method according to the invention with a 3-wet
  • Figure 8B is a schematic representation to illustrate the construction of a paint shop according to the invention for carrying out the painting process according to FIG. 8A.
  • FIG. 3 shows a cross-sectional view through a motor vehicle paint according to the invention, which partially matches the paint according to FIG. 1, so that reference is made to FIG. 1 in order to avoid repetition, the same reference numbers being used for corresponding details.
  • a particularity of this automotive paint according to the invention is that the pattern 7 (e.g., a decorative strip) is applied directly to the base coat layer 5, i. without the intermediate clearcoat 6, as in the conventional automotive paint according to FIG. 1.
  • the pattern 7 e.g., a decorative strip
  • the automotive paint according to the invention thus has only the clearcoat layer 8, whereas the previously required further clearcoat film 6 is not required. This is advantageous because two process steps for applying and drying the clearcoat layer 6 can be saved.
  • Figure 4A shows an example of an inventive Lackierver drive in the form of a flow chart
  • Figure 4B shows the corresponding structure of a paint shop according to the invention.
  • a conveyor 10 runs along a painting line and conveys motor vehicle bodies 11 in the direction of the arrow through the painting installation.
  • step S 4 the basecoat film 5 is then dried in a drying station 12. Subsequently, the pattern 7 is then applied in a step S5, which takes place in a further paint booth 13.
  • the application of the pattern 7 is also carried out here by a multi-axis painting robot, which carries an application device that does not produce coating fog, but a sharply defined coating agent beam, such application device is known for example from DE 10 2010 019 612 AI.
  • a step S6 the pattern 7 is then dried in a drying station 14.
  • the clearcoat film 8 is then applied in a further paint booth 15 in a step S7.
  • FIGS. 5A and 5B show a modification of the embodiment according to FIGS. 4A and 4B, so that reference is made to the above description to avoid repetition, the same reference numbers being used for corresponding details.
  • a special feature of this embodiment is that instead of the drying station 12, a venting station 12 'is provided.
  • FIGS. 6A and 6B likewise corresponds in part to the exemplary embodiments described above, so that reference is made to the above description in order to avoid repetition.
  • FIGS. 7A and 7B likewise corresponds in part to the exemplary embodiments described above, so that reference is made to the above description to avoid repetition, the same reference numerals being used for corresponding details.
  • a special feature of this embodiment is that the pattern 7 is applied in a step S4 "wet-on-wet" on the basecoat layer 5, wherein this takes place in a common paint booth 17.
  • FIGS. 8A and 8B also partially corresponds to the exemplary embodiments described above, so that in order to avoid References to the above description, reference being made to the same reference numerals for corresponding details.
  • a special feature of this exemplary embodiment is that the clearcoat layer 8, the pattern 7 and the basecoat film 5 are applied together in the same paint booth 18 in a 3-wet process.
  • the invention is not limited to the preferred embodiments described above. Rather, a variety of variants and modifications is possible, which also make use of the inventive idea and therefore fall within the scope. In particular, the invention also claims protection for the subject matter and the features of the invention

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

The invention relates to a painting method for painting a component (1), in particular of a motor vehicle body component (1), comprising the following steps: applying a base coat layer (5) to the component (1), applying a pattern (7) to the component (1), in particular a decorative strip or a graphic element, and applying a clear lacquer coat (8) to the component (1). According to the invention, the pattern (7) is applied to the base coat layer (5) without interposing a clear lacquer coat. The invention further relates to a corresponding painting facility.

Description

BESCHREIBUNG Lackierverfahren und Lackieranlage für Zierstreifen  DESCRIPTION Painting process and painting system for decorative strips
Die Erfindung betrifft ein Lackierverfahren zum Lackieren eines Bauteils, insbesondere eines Kraftfahrzeugkarosseriebau- teils. Weiterhin umfasst die Erfindung eine entsprechende La- ckieranlage und eine damit erzeugte Lackschicht auf einemThe invention relates to a painting process for painting a component, in particular a Kraftfahrzeugkosseriebau- part. Furthermore, the invention comprises a corresponding lacquering plant and a lacquer layer produced therewith on one side
Bauteil, insbesondere auf einem Kraftfahrzeugkarosseriebau- teil. Component, in particular on a Kraftfahrzeugkarosseriebau- part.
Bei der Lackierung von Kraftfahrzeugkarosseriebauteilen wer- den üblicherweise mehrere Lackschichten aufgebracht, nämlich unter anderem eine Schicht aus einem Kathodentauchlack (KTL) , eine Füllerschicht, eine Basislackschicht und ganz außen eine Klarlackschicht. Weiterhin ist es aus dem Stand der Technik bekannt, Zierlinien, Designstreifen, Muster oder Grafiken auf das Bauteil aufzubringen. Beispielsweise werden Zierstreifen mittels eines Pinsels auf die Klarlackschicht aufgebracht. Nach dem Trocknen des manuell aufgebrachten Zierstreifens wird dann eine weitere Klarlackschicht aufgebracht und eingebrannt . In the coating of motor vehicle body components, usually several layers of paint are applied, namely, inter alia, a layer of a cathodic dip paint (KTL), a surfacer coat, a basecoat film and, quite generally, a clearcoat film. Furthermore, it is known from the prior art to apply decorative lines, design strips, patterns or graphics on the component. For example, decorative strips are applied to the clearcoat layer by means of a brush. After drying the manually applied decorative strip, a further clearcoat layer is then applied and baked.
Figur 1 zeigt exemplarisch den mehrschichtigen Aufbau eines solchen herkömmlichen Lacks auf einem Kraftfahrzeugkarosseriebauteil 1. So besteht der Lack aus einer Phospatschicht 2, einer Grundierung 3 aus einem Kathodentauchlack (KTL) , einem Füller 4, einer Basislackschicht 5, einer Klarlackschicht 6, einem Muster 7 (z.B. Zierstreifen) und einer auf das Muster 7 aufgebrachten weiteren Klarlackschicht 8. Figur 2 zeigt entsprechend in Form eines Flussdiagramms das Lackierverfahren zum Lackieren des Lacks aus Figur 1. Das Flussdiagramm beginnt hierbei in einem Schritt Sl mit dem Auftragen der Grundierung 3 aus einem Kathodentauchlack, je- doch kann in einem vorgelagerten Verfahrensschritt noch die Phosphatschicht 2 aufgetragen werden, was hier nicht dargestellt ist. In einem Schritt S2 wird dann die Füllerschicht 4 aufgetragen. Daraufhin wird dann in einem Schritt S3 die Basislackschicht 5 aufgetragen und in einem Schritt S4 wird der Basislack getrocknet. Nach dem Trocknen des Basislacks wird dann die Klarlackschicht 6 in einem Schritt S5 aufgetragen. Anschließend wird die Klarlackschicht dann in einem Schritt S6 eingebrannt. Daraufhin wird dann in einem Schritt S7 manuell das Muster 7 aufgetragen, beispielsweise in Form eines Zierstreifens, der manuell mit einem Pinsel appliziert werden kann. Daraufhin wird das Muster 7 in einem Schritt S8. zwischengetrocknet. Schließlich wird dann in einem Schritt S9 die weitere Klarlackschicht 8 aufgetragen und in einem FIG. 1 shows, by way of example, the multilayer structure of such a conventional paint on a motor vehicle body component 1. The paint thus consists of a phosphate layer 2, a primer 3 made of a cathodic dip paint (KTL), a filler 4, a basecoat film 5, a clearcoat film 6, a pattern 7 (Eg, decorative strips) and a further applied to the pattern 7 further clearcoat layer. 8 FIG. 2 shows correspondingly in the form of a flow chart the painting process for painting the paint from FIG. 1. In this case, the flow diagram begins in step S 1 with the application of the primer 3 from a cathode dip coating, but the phosphate coating 2 can still be applied in an upstream process step , which is not shown here. In a step S2, the filler layer 4 is then applied. Then, in a step S3, the basecoat film 5 is applied and in a step S4, the basecoat is dried. After the basecoat has been dried, the clearcoat film 6 is then applied in a step S5. Subsequently, the clearcoat film is then baked in a step S6. Then, in a step S7, the pattern 7 is then applied manually, for example in the form of a decorative strip, which can be applied manually with a brush. Thereafter, the pattern 7 in a step S8. between dried. Finally, the further clearcoat layer 8 is then applied in a step S9 and in one
Schritt S10 eingebrannt. Branded S10.
Nachteilig an diesem bekannten Verfahren zum Aufbringen eines Musters (z.B. Zierstreifen) ist zunächst die Tatsache, dass die zusätzliche Klarlackschicht 8 erforderlich ist. Damit verbunden ist auch die Notwendigkeit eines weiteren Trock- nungsschrittes . A disadvantage of this known method of applying a pattern (for example trim strips) is first the fact that the additional clearcoat layer 8 is required. Linked to this is the need for a further drying step.
Ein weiterer Nachteil des vorstehend beschriebenen bekannten Lackierverfahrens besteht darin, dass das Muster 7 manuell aufgebracht wird. Hierbei ist in der Regel auch Abdeckmateri- al (z.B. Folien, Klebebänder) erforderlich, um die Bauteiloberfläche entsprechend dem gewünschten Muster 7 zu maskieren, wobei die Bereitstellung und Entsorgung des Abdeckmaterials mit Zusatzkosten verbunden ist. Ferner führt das manuelle Aufbringen des Musters 7 auch zu relativ vielen Fehlern. Aus DE 10 2010 014 381 AI ist ein Lackierverfahren bekannt, bei dem ein Muster direkt auf die Basislackschicht aufgebracht wird, d.h. ohne eine dazwischen liegende Klarlack- schicht. Allerdings wird das Muster hierbei aus einem Another disadvantage of the known coating method described above is that the pattern 7 is applied manually. Covering materials (eg foils, adhesive tapes) are generally required in order to mask the component surface in accordance with the desired pattern 7, the provision and disposal of the covering material being associated with additional costs. Furthermore, the manual application of the pattern 7 also leads to relatively many errors. DE 10 2010 014 381 A1 discloses a coating method in which a pattern is applied directly to the basecoat film, ie without an intermediate clearcoat film. However, the pattern hereby becomes one
Schichtverbund gebildet, der einen Träger und eine ausgehärtete Lackschicht umfasst. Der Schichtverbund wird hierbei mit der Seite der ausgehärteten Lackschicht auf die Basislackschicht aufgedrückt, woraufhin dann der Träger abgezogen wer- den kann. Das Aufbringen des Musters erfolgt hierbei also nicht im Rahmen eines Lackierverfahrens und ist deshalb wesentlich aufwändiger.  Layer composite formed, comprising a support and a cured lacquer layer. In this case, the layer composite is pressed onto the basecoat layer with the side of the hardened lacquer layer, after which the support can then be removed. The application of the pattern does not take place in the context of a Lackierverfahrens and therefore much more complex.
Weiterhin ist zum Stand der Technik hinzuweisen auf US Furthermore, reference is made to the prior art US
2004/0028823 AI. Hierbei wird jedoch kein Muster im Sinne der Erfindung aufgetragen. 2004/0028823 AI. In this case, however, no pattern is applied in the sense of the invention.
Ferner umfasst der Stand der Technik noch WO 2007/131660 AI, die Firmendruckschrift „Dürr News Juni 2006 Ausgabe" und DE 10 2010 019 612 AI. Furthermore, the prior art still includes WO 2007/131660 AI, the company publication "Dürr News June 2006 edition" and DE 10 2010 019 612 AI.
Der Erfindung liegt deshalb die Aufgabe zugrunde, ein entsprechend verbessertes Lackierverfahren und eine entsprechende Lackieranlage zu schaffen. The invention is therefore based on the object to provide a correspondingly improved painting process and a corresponding paint shop.
Diese Aufgabe wird durch ein erfindungsgemäßes Lackierverfahren bzw. durch eine erfindungsgemäße Lackieranlage gemäß den nebengeordneten Ansprüchen gelöst. Die Erfindung umfasst die allgemeine technische Lehre, das Muster (z.B. Zierstreifen) ohne eine dazwischen liegende Klarlackschicht auf die Basislackschicht aufzubringen, so dass auf eine zusätzliche Klarlackschicht über dem Muster verzichtet werden kann. Im Rahmen des erfindungsgemäßen La- ckierverfahrens wird also vorzugsweise nur eine einzige Klar¬ lackschicht aufgetragen, die nicht nur die Basislackschicht abdeckt, sondern auch das Muster. Die im Rahmen der Erfindung verwendete Formulierung des Auftragens des Musters bezieht sich vorzugsweise auf Lackierverfahren, wie beispielsweise Sprühverfahren oder Druckverfahren. Das Muster wird also vorzugsweise durch einen Zerstäuber (z.B. Rotationszerstäuber) aufgetragen. Dadurch unterscheidet sich die Erfindung von der eingangs zitierten Druckschrift DE 10 2010 014 381 AI, bei der ein Schichtverbund (Träger + ausgehärtete Lackschicht) aufgedrückt wird. This object is achieved by an inventive coating method or by a painting according to the invention according to the independent claims. The invention comprises the general technical teaching of applying the pattern (eg ornamental strip) to the basecoat layer without an intermediate clearcoat so that an additional clearcoat layer above the pattern can be dispensed with. Within the scope of the invention ckierverfahrens is thus preferably applied only a single clear ¬ paint layer, which not only covers the base coat layer, but also the pattern. The formulation patterning used in the invention preferably refers to painting processes such as spraying or printing processes. The pattern is thus preferably applied by an atomizer (eg rotary atomizer). Thus, the invention differs from the cited document DE 10 2010 014 381 AI, in which a layer composite (carrier + cured lacquer layer) is pressed.
Der im Rahmen der Erfindung verwendete Begriff eines Musters ist nicht auf die vorstehend erwähnten Zier-, Design- oderThe term pattern used in the context of the invention is not intended to refer to the above-mentioned ornamental, design or
Dekorstreifen beschränkt. Vielmehr umfasst der Begriff eines Musters im Rahmen der Erfindung auch Grafiken, Bilder und Ähnliches. Ein weiteres Beispiel eines Musters ist die Lackierung einer Teilfläche (z.B. eines Dachholms einer Kraft- fahrzeugkarosserie) , die in einer anderen Farbe lackiert werden soll als die sonstige Kraftfahrzeugkarosserie. Allgemein umfasst der Begriff eines Musters also im Rahmen der Erfindung jegliche Teilflächen einer Bauteiloberfläche, die mit einem anderen Beschichtungsmittel (z.B. in einer anderen Far- be) beschichtet werden sollen als der Rest der Bauteiloberfläche. Der im Rahmen der Erfindung verwendete Begriff eines Musters bedeutet vorzugsweise, dass das Muster nur eine Teilfläche der Bauteiloberfläche abdeckt, d.h. nicht die gesamte Bauteiloberfläche. Weiterhin impliziert der Begriff eines Musters vorzugsweise, dass das Muster nicht flächig durchgehend ist, sondern die Bauteiloberfläche lediglich bei den jeweiligen Musterdetails (z.B. Linien) abdeckt. In einem bevorzugten Ausführungsbeispiel der Erfindung wird das Muster direkt auf die Basislackschicht aufgebracht. Dies bedeutet, dass zwischen der Basislackschicht einerseits und dem Muster andererseits weder eine Klarlackschicht angeordnet ist, noch eine sonstige Schicht aus einem anderen Material. Restricted decorative stripes. Rather, the term of a pattern in the context of the invention also includes graphics, images and the like. Another example of a pattern is the painting of a partial surface (eg a roof rail of a motor vehicle bodywork) which is to be painted in a different color than the other motor vehicle bodywork. In the context of the invention, the term of a pattern thus generally includes any partial surfaces of a component surface which are to be coated with another coating agent (for example in a different color) than the rest of the component surface. The term pattern used in the context of the invention preferably means that the pattern covers only a partial area of the component surface, ie not the entire component surface. Furthermore, the concept of a pattern preferably implies that the pattern is not continuous, but covers the component surface only with the respective pattern details (eg lines). In a preferred embodiment of the invention, the pattern is applied directly to the basecoat layer. This means that neither a clearcoat layer is disposed between the basecoat film on the one hand and the pattern on the other hand, nor any other layer of a different material.
In einer Variante der Erfindung wird die Basislackschicht vor dem Aufbringen des Musters nur abgelüftet und auch das Muster (z.B. Zierstreifen) wird vor dem Aufbringen des Klarlacks nur abgelüftet. In one variant of the invention, the basecoat film is only flashed off prior to application of the pattern and also the pattern (e.g., trim) is only flashed off prior to application of the clearcoat.
In einer anderen Variante der Erfindung wird die Basislackschicht dagegen vor dem Aufbringen des Musters zwischengetrocknet, wohingegen das Muster vor dem Aufbringen des Klar- lacks nur abgelüftet wird. In another variant of the invention, by contrast, the basecoat film is intermediately dried prior to the application of the pattern, whereas the pattern is only flashed off before the application of the clearcoat.
Eine wiederum andere Variante der Erfindung sieht dagegen vor, dass die Basislackschicht vor dem Aufbringen des Musters abgelüftet wird, wohingegen das Muster vor dem Aufbringen des Klarlacks zwischengetrocknet wird. Yet another variant of the invention, on the other hand, provides for the basecoat layer to be flashed off before the application of the pattern, whereas the pattern is intermediately dried before the application of the clearcoat material.
Ferner besteht auch die Möglichkeit, dass die Basislackschicht vor dem Aufbringen des Musters zwischengetrocknet wird, wie auch das Muster vor dem Aufbringen des Klarlacks zwischengetrocknet wird. Furthermore, there is also the possibility that the base coat layer is dried in between before the application of the pattern, as well as the pattern is between dried before the application of the clearcoat.
In noch einer anderen Variante der Erfindung ist vorgesehen, dass die Basislackschicht und das Muster nass-in-nass aufgetragen werden ohne ein zwischenzeitliches Trocknen oder Ab- lüften. Dies bedeutet, dass das Muster bereits zu einem Zeitpunkt aufgetragen wird, zu dem die darunter liegende Basislackschicht noch nicht vollständig getrocknet ist, so dass der nasse Lack des Musters auf den noch nassen Lack der Ba- sislackschicht trifft, weswegen man auch von "nass-in-nass "- Lackierung spricht . In yet another variant of the invention, it is provided that the basecoat film and the pattern are applied wet-on-wet without intermediate drying or venting. This means that the pattern is already applied at a time when the underlying basecoat layer has not yet completely dried, so that the wet paint of the pattern is applied to the still wet paint of the basecoat. Sislackschicht meets, which is why one speaks of "wet-in-wet" - paint.
Weiterhin besteht im Rahmen der Erfindung die Möglichkeit, dass die Basislackschicht, das Muster (z.B. ein Zierstreifen) und die Klarlackschicht in einem sogenannten 3-wet-Prozess nass-in-nass aufgetragen werden ohne ein zwischenzeitliches Trocknen oder Ablüften. Dies bedeutet, dass der flüssige Lack des Musters zu einem Zeitpunkt aufgetragen wird, zu dem die darunter befindliche Basislackschicht noch nicht vollständig getrocknet ist. Weiterhin bedeutet dies, dass der flüssige Klarlack zu einem Zeitpunkt aufgetragen wird, zu dem der darunter befindliche Lack des Musters noch nicht vollständig getrocknet ist. Bei einem 3-wet-Prozess sind die drei Lacke (Basislack, Lack des Musters und Klarlack) der drei übereinander liegenden Lackschichten also zumindest kurzzeitig noch gemeinsam in einem flüssigen Zustand. Furthermore, within the scope of the invention it is possible for the basecoat film, the pattern (for example a trim strip) and the clearcoat film to be applied wet-on-wet in a so-called 3-wet process without intermediate drying or flash-off. This means that the liquid paint of the pattern is applied at a time when the underlying basecoat layer is not yet completely dried. Furthermore, this means that the liquid clearcoat is applied at a time when the underneath paint of the pattern is not yet completely dried. In a 3-wet process, the three paints (base coat, paint of the pattern and clear coat) of the three superimposed paint layers so at least temporarily together still in a liquid state.
In einem Ausführungsbeispiel der Erfindung werden die Basislackschicht und das Muster (z.B. Zierstreifen) gemeinsam in einer Lackierkabine aufgetragen, insbesondere in dem vorstehend erwähnten Nass-in-nass-Prozess ohne ein zwischenzeitliches Trocknen oder Ablüften. In one embodiment of the invention, the base coat layer and the pattern (e.g., trim strips) are applied together in a paint booth, particularly in the aforementioned wet-on-wet process without intermediate drying or venting.
In einem anderen Ausführungsbeispiel der Erfindung werden dagegen das Muster (z.B. Zierstreifen) und die Klarlackschicht gemeinsam in einer Lackierkabine aufgetragen, insbesondere in dem vorstehend erwähnten Nass-in-nass-Prozess, ohne zwischenzeitliches Trocknen oder Ablüften. In another embodiment of the invention, on the other hand, the pattern (e.g., trim) and the clear coat are applied together in a paint booth, especially in the wet-on-wet process mentioned above, without intermediate drying or flash off.
In noch einem anderen Ausführungsbeispiel der Erfindung wer- den die Basislackschicht, das Muster und die Klarlackschicht gemeinsam in einer Lackierkabine aufgetragen, insbesondere in dem vorstehend erwähnten 3-wet-Prozess ohne ein zwischenzeitliches Trocknen oder Ablüften. In yet another embodiment of the invention, the basecoat film, the pattern and the clearcoat film are applied together in a paint booth, in particular the aforementioned 3-wet process without interim drying or venting.
Es besteht jedoch auch die Möglichkeit, dass die Basislack- Schicht, das Muster und/oder die Klarlackschicht in mehreren Lackierkabinen aufgetragen werden, die entlang einer Lackierstraße hintereinander angeordnet sind. However, it is also possible for the basecoat film, the pattern and / or the clearcoat film to be applied in a plurality of paint booths arranged one behind the other along a paint line.
In einem bevorzugten Ausführungsbeispiel der Erfindung werden die Basislackschicht, das Muster und/oder die Klarlackschicht jeweils mittels eines mehrachsigen, frei programmierbaren Lackierroboters automatisch aufgetragen. Derartige Lackierroboter sind an sich aus dem Stand der Technik bekannt und müssen deshalb nicht näher beschrieben werden. In a preferred embodiment of the invention, the basecoat film, the pattern and / or the clearcoat film are each automatically applied by means of a multi-axis, freely programmable paint robot. Such painting robots are known per se from the prior art and therefore need not be described in detail.
Das Muster wird hierbei vorzugsweise von einem Applikationsgerät aufgetragen, das keinen Beschichtungsmittelnebel abgibt, sondern einen eng begrenzten Beschichtungsmittelstrahl. Derartige Applikationsgeräte sind beispielsweise aus DE 10 2010 019 612 AI bekannt, so dass der Inhalt dieser Druckschrift der vorliegenden Beschreibung in vollem Umfang zuzurechnen ist. In this case, the pattern is preferably applied by an application device which dispenses no coating agent mist, but a narrowly defined coating agent jet. Such application devices are known for example from DE 10 2010 019 612 AI, so that the content of this document of the present description is fully attributable.
Die Basislackschicht und die Klarlackschicht werden dagegen vorzugsweise von einem herkömmlichen Zerstäuber aufgetragen, wie beispielsweise einem Rotationszerstäuber. On the other hand, the basecoat film and the clearcoat film are preferably applied by a conventional atomizer, such as a rotary atomizer.
Es wurde bereits vorstehend erwähnt, dass die Basislackschicht, das Muster und die Klarlackschicht vorzugsweise aus Nasslack bestehen. Es besteht jedoch im Rahmen der Erfindung grundsätzlich auch die Möglichkeit, anstelle von Nasslack ei nen Pulverlack für die Basislackschicht, das Muster und/oder die Klarlackschicht einzusetzen. Weiterhin ist zu erwähnen, dass die Erfindung nicht nur It has already been mentioned above that the basecoat film, the pattern and the clearcoat film preferably consist of wet paint. However, it is within the scope of the invention in principle also possible to use egg NEN powder coating for the basecoat film, the pattern and / or the clearcoat film instead of wet paint. It should also be mentioned that the invention not only
Schutz beansprucht für das vorstehend beschriebene erfindungsgemäße Lackierverfahren. Vielmehr beansprucht die Erfindung auch Schutz für eine entsprechend aufgebaute Lack- schicht, insbesondere auf einem Bauteil, wie beispielsweise einem Kraftfahrzeugkarosseriebauteil . Protection claimed for the above-described coating process according to the invention. Rather, the invention also claims protection for a suitably structured paint layer, in particular on a component, such as a motor vehicle body component.
Schließlich beansprucht die Erfindung auch Schutz für eine entsprechend aufgebaute Lackieranlage, die das Muster ohne eine dazwischen liegende Klarlackschicht auf die Basislackschicht aufbringt. Finally, the invention also claims protection for a correspondingly constructed painting installation, which applies the pattern to the basecoat layer without an intermediate clearcoat.
Weitere Einzelheiten einer erfindungsgemäßen Lackieranlage ergeben sich bereits aus der vorstehenden Beschreibung, so dass auf eine detaillierte Beschreibung des Aufbaus und der Funktionsweise der Lackieranlage an dieser Stelle verzichtet werden kann. Further details of a painting according to the invention will become apparent from the foregoing description, so that it can be dispensed with a detailed description of the structure and operation of the paint shop at this point.
Andere vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet oder werden nachstehend zusammen mit der Beschreibung der bevorzugten Ausführungsbeispiele der Erfindung anhand der Figuren näher erläutert. Es zeigen: Other advantageous developments of the invention are characterized in the subclaims or are explained in more detail below together with the description of the preferred embodiments of the invention with reference to FIGS. Show it:
Figur 1 eine Querschnittsansicht durch den eingangs be- schriebenen herkömmlichen Kraftfahrzeuglack mit einem Muster, FIG. 1 shows a cross-sectional view through the conventional motor vehicle paint described at the beginning with a pattern,
Figur 2 das eingangs beschriebene herkömmliche Lackierver- fahren zum Aufbringen eines Musters in Form eines Flussdiagramms, FIG. 2 shows the conventional coating method described above for applying a pattern in the form of a flow chart,
Figur 3 eine Querschnittsansicht durch einen erfindungsgemäßen mehrschichtigen Lack mit einem Muster, Figur 4A ein Flussdiagramm zur Verdeutlichung einer Variante des erfindungsgemäßen Lackierverfahrens, FIG. 3 shows a cross-sectional view through a multilayer varnish according to the invention with a pattern, FIG. 4A shows a flow chart to illustrate a variant of the coating method according to the invention,
Figur 4B eine schematische Darstellung einer erfindungsgemäßen Lackieranlage zur Ausführung des Lackierverfahrens gemäß Figur 4A, FIG. 4B shows a schematic illustration of a painting installation according to the invention for carrying out the painting method according to FIG. 4A,
Figur 5A ein weiteres Flussdiagramme einer anderen Variante eines erfindungsgemäßen Lackierverfahrens, FIG. 5A shows a further flow chart of another variant of a coating method according to the invention,
Figur 5B eine schematische Darstellung einer erfindungsgemäßen Lackieranlage zur Ausführung des Lackierverfahrens gemäß Figur 5A, Figur 6A ein weiteres Flussdiagramm einer anderen Variante eines erfindungsgemäßen Lackierverfahrens, FIG. 5B shows a schematic representation of a painting installation according to the invention for carrying out the painting method according to FIG. 5A, FIG. 6A shows a further flow diagram of another variant of a painting method according to the invention,
Figur 6B eine schematische Darstellung einer erfindungsgemäßen Lackieranlage zur Ausführung des Lackierverfah- rens gemäß Figur 6A, FIG. 6B shows a schematic representation of a painting installation according to the invention for carrying out the painting method according to FIG. 6A,
Figur 7A ein Flussdiagramm zur Verdeutlichung einer anderen Figure 7A is a flow chart illustrating another
Variante des erfindungsgemäßen Lackierverfahrens, Figur 7B eine schematische Darstellung zur Verdeutlichung einer Lackieranlage zur Ausführung des Lackierverfahrens gemäß Figur 7A,  7B shows a schematic illustration to illustrate a painting installation for carrying out the painting method according to FIG. 7A, FIG.
Figur 8A ein Flussdiagramm zur Verdeutlichung eines erfin- dungsgemäßen Lackierverfahrens mit einem 3-wet-FIG. 8A shows a flowchart for clarifying a coating method according to the invention with a 3-wet
Prozess zum Aufbringen des Musters, Process for applying the pattern,
Figur 8B eine schematische Darstellung zur Verdeutlichung des Aufbaus einer erfindungsgemäßen Lackieranlage zur Ausführung des Lackierverfahrens gemäß Figur 8A. Figure 8B is a schematic representation to illustrate the construction of a paint shop according to the invention for carrying out the painting process according to FIG. 8A.
Figur 3 zeigt eine Querschnittsansicht durch einen erfindungsgemäßen Kraftfahrzeuglack, der teilweise mit dem Lack gemäß Figur 1 übereinstimmt, so dass zur Vermeidung von Wiederholungen auf die vorstehende Beschreibung zu Figur 1 verwiesen wird, wobei für entsprechende Einzelheiten dieselben Bezugszeichen verwendet werden. FIG. 3 shows a cross-sectional view through a motor vehicle paint according to the invention, which partially matches the paint according to FIG. 1, so that reference is made to FIG. 1 in order to avoid repetition, the same reference numbers being used for corresponding details.
Eine Besonderheit dieses erfindungsgemäßen Kraftfahrzeuglacks besteht darin, dass das Muster 7 (z.B. ein Zierstreifen) direkt auf die Basislackschicht 5 aufgebracht ist, d.h. ohne die dazwischen liegende Klarlackschicht 6, wie bei dem herkömmlichen Kraftfahrzeuglack gemäß Figur 1. A particularity of this automotive paint according to the invention is that the pattern 7 (e.g., a decorative strip) is applied directly to the base coat layer 5, i. without the intermediate clearcoat 6, as in the conventional automotive paint according to FIG. 1.
Der erfindungsgemäße Kraftfahrzeuglack weist also nur die Klarlackschicht 8 auf, wohingegen die bisher erforderliche weitere Klarlackschicht 6 nicht erforderlich ist. Dies ist vorteilhaft, weil dadurch zwei Prozessschritte zum Aufbringen und zum Trocknen der Klarlackschicht 6 eingespart werden können . The automotive paint according to the invention thus has only the clearcoat layer 8, whereas the previously required further clearcoat film 6 is not required. This is advantageous because two process steps for applying and drying the clearcoat layer 6 can be saved.
Figur 4A zeigt exemplarisch ein erfindungsgemäßes Lackierver fahren in Form eines Flussdiagramms, wobei Figur 4B den entsprechenden Aufbau einer erfindungsgemäßen Lackieranlage zeigt . Figure 4A shows an example of an inventive Lackierver drive in the form of a flow chart, Figure 4B shows the corresponding structure of a paint shop according to the invention.
Teilweise stimmt dieses Flussdiagramm mit dem Flussdiagramm aus Figur 2 überein, so dass zur Vermeidung von Wiederholun gen auf die vorstehende Beschreibung verwiesen wird, wobei für entsprechende Einzelheiten dieselben Bezugszeichen verwendet werden. N"ach dem Auftragen der Grundierung 3 und des Füllers 4 in den Schritten Sl und S2 wird in einem Schritt S3 die Basislackschicht 5 aufgetragen. Hierzu weist Lackieranlage eine separate Lackierkabine 9 auf, in der die Basislackschicht 5 von einem mehrachsigen Lackierroboter mit einem Rotationszerstäuber als Applikationsgerät aufgetragen wird. In part, this flowchart is consistent with the flowchart of Figure 2, so that reference is made to avoid Wiederholun conditions on the above description, with the same reference numerals are used for corresponding details. N "ach application of the primer 3 and the filler 4 in steps Sl and S2, the base coat layer 5 is applied in a step S3. For this purpose, paint a separate painting booth 9, in which the base coat layer 5 of a multi-axis paint robot with a rotary atomizer Application device is applied.
Durch die Lackierkabine 1 verläuft hierbei entlang einer Lackierstraße ein Förderer 10, der Kraftfahrzeugkarosserien 11 in Pfeilrichtung durch die Lackieranlage fördert. Through the painting booth 1, a conveyor 10 runs along a painting line and conveys motor vehicle bodies 11 in the direction of the arrow through the painting installation.
In einem weiteren Schritt S4 wird die Basislackschicht 5 dann in einer Trocknungsstation 12 getrocknet. Anschließend wird dann in einem Schritt S5 das Muster 7 aufgetragen, was in einer weiteren Lackierkabine 13 erfolgt. Das Aufbringen des Musters 7 erfolgt hierbei ebenfalls durch einen mehrachsigen Lackierroboter, der ein Applikationsgerät trägt, das keinen Beschichtungsnebel erzeugt, sondern einen scharf abgegrenzten Beschichtungsmittelstrahl, wobei ein solches Applikationsgerät beispielsweise aus DE 10 2010 019 612 AI bekannt ist. In a further step S 4, the basecoat film 5 is then dried in a drying station 12. Subsequently, the pattern 7 is then applied in a step S5, which takes place in a further paint booth 13. The application of the pattern 7 is also carried out here by a multi-axis painting robot, which carries an application device that does not produce coating fog, but a sharply defined coating agent beam, such application device is known for example from DE 10 2010 019 612 AI.
In einem Schritt S6 wird das Muster 7 dann in einer Trock- nungsstation 14 getrocknet. In a step S6, the pattern 7 is then dried in a drying station 14.
Im Anschluss an das Trocknen des Musters 7 wird dann in einem Schritt S7 die Klarlackschicht 8 in einer weiteren Lackierkabine 15 aufgetragen. Following the drying of the pattern 7, the clearcoat film 8 is then applied in a further paint booth 15 in a step S7.
Schließlich wird die Klarlackschicht 8 dann in einem Schritt S8 in einer Einbrennstation 16 eingebrannt. Die Figuren 5A und 5B zeigen eine Abwandlung des Ausführungsbeispiels gemäß den Figuren 4A und 4B, so dass zur Vermeidung von Wiederholungen auf die vorstehende Beschreibung verwiesen wird, wobei für entsprechende Einzelheiten dieselben Bezugs- zeichen verwendet werden. Finally, the clearcoat film 8 is then baked in a baking station 16 in a step S8. FIGS. 5A and 5B show a modification of the embodiment according to FIGS. 4A and 4B, so that reference is made to the above description to avoid repetition, the same reference numbers being used for corresponding details.
Eine Besonderheit dieses Ausführungsbeispiels besteht darin, dass anstelle der Trocknungsstation 12 eine Ablüftstation 12' vorgesehen ist. A special feature of this embodiment is that instead of the drying station 12, a venting station 12 'is provided.
Das Ausführungsbeispiel gemäß den Figuren 6A und 6B stimmt ebenfalls mit den vorstehend beschriebenen Ausführungsbeispielen teilweise überein, so dass zur Vermeidung von Wiederholungen auf die vorstehende Beschreibung verwiesen wird. The embodiment according to FIGS. 6A and 6B likewise corresponds in part to the exemplary embodiments described above, so that reference is made to the above description in order to avoid repetition.
Eine Besonderheit dieses Ausführungsbeispiels besteht darin, dass anstelle der Trocknungsstation 14 in Figur 4B eine Ablüftstation 14' vorgesehen ist. Das Ausführungsbeispiel gemäß den Figuren 7A und 7B stimmt ebenfalls teilweise mit den vorstehend beschriebenen Ausführungsbeispielen überein, so dass zur Vermeidung von Wiederholungen auf die vorstehende Beschreibung verwiesen wird, wobei für entsprechende Einzelheiten dieselben Bezugszeichen ver- wendet werden. A special feature of this embodiment is that instead of the drying station 14 in Figure 4B, a venting station 14 'is provided. The embodiment according to FIGS. 7A and 7B likewise corresponds in part to the exemplary embodiments described above, so that reference is made to the above description to avoid repetition, the same reference numerals being used for corresponding details.
Eine Besonderheit dieses Ausführungsbeispiels besteht darin, dass das Muster 7 in einem Schritt S4 "nass-in-nass" auf die Basislackschicht 5 aufgetragen wird, wobei dies in einer ge- meinsamen Lackierkabine 17 erfolgt. A special feature of this embodiment is that the pattern 7 is applied in a step S4 "wet-on-wet" on the basecoat layer 5, wherein this takes place in a common paint booth 17.
Schließlich stimmt auch das Ausführungsbeispiel gemäß den Figuren 8A und 8B teilweise mit den vorstehend beschriebenen Ausführungsbeispielen überein, so dass zur Vermeidung von Wiederholungen auf die vorstehende Beschreibung verwiesen wird, wobei für entsprechende Einzelheiten dieselben Bezugszeichen verwendet werden. Eine Besonderheit dieses Ausführungsbeispiels besteht darin, dass die Klarlackschicht 8, das Muster 7 und die Basislackschicht 5 in einem 3-wet-Prozess gemeinsam in der selben Lackierkabine 18 aufgetragen wird. Die Erfindung ist nicht auf die vorstehend beschriebenen bevorzugten Ausführungsbeispiele beschränkt. Vielmehr ist eine Vielzahl von Varianten und Abwandlungen möglich, die ebenfalls von dem Erfindungsgedanken Gebrauch machen und deshalb in den Schutzbereich fallen. Insbesondere beansprucht die Er- findung auch Schutz für den Gegenstand und die Merkmale derFinally, the embodiment according to FIGS. 8A and 8B also partially corresponds to the exemplary embodiments described above, so that in order to avoid References to the above description, reference being made to the same reference numerals for corresponding details. A special feature of this exemplary embodiment is that the clearcoat layer 8, the pattern 7 and the basecoat film 5 are applied together in the same paint booth 18 in a 3-wet process. The invention is not limited to the preferred embodiments described above. Rather, a variety of variants and modifications is possible, which also make use of the inventive idea and therefore fall within the scope. In particular, the invention also claims protection for the subject matter and the features of the invention
Unteransprüche unabhängig von den jeweils in Bezug genommenen Ansprüchen . Dependent claims independently of the claims in each case.
Bezugszeichenliste : List of reference numbers:
1 Kraftfahrzeugkarosseriebauteil 1 motor vehicle body component
2 Phosphatschicht  2 phosphate layer
3 Grundierung  3 primer
4 Füller  4 fillers
5 Basislackschicht  5 base coat layer
6 Klarlackschicht  6 clearcoat
7 Muster  7 patterns
8 Klarlackschicht  8 clearcoat
9 Lackierkabine für den Basislack  9 paint booth for the basecoat
10 Förderer  10 conveyors
11 Kraftfahrzeugkarosserie  11 vehicle body
12 TrocknungsStation für den Basislack  12 drying station for the basecoat
12 ' Ablüftstation für den Basislack  12 'exhaust station for the basecoat
13 Lackierkabine für das Muster  13 paint booth for the pattern
14 Trocknungsstation für das Muster  14 drying station for the pattern
14 ' Ablüftstation für das Muster  14 'exhausting station for the pattern
15 Lackierkabine für den Klarlack  15 paint booth for the clearcoat
16 Einbrennstation  16 burn-in station
17 Lackierkabine für Nass-in-nass-Lackierung von Basislack und Muster  17 Varnishing booth for wet-on-wet painting of base coat and pattern
18 Lackierkabine für 3-wet-Prozess  18 spray booth for 3-wet process

Claims

ANSPRUCHE
1. Lackierverfahren zum Lackieren eines Bauteils (1), ins besondere eines Kraftfahrzeugkarosseriebauteils (1), mit den folgenden Schritten: A painting method for painting a component (1), in particular a motor vehicle body component (1), comprising the following steps:
a) Aufbringen einer Basislackschicht (5) auf das Bauteil a) applying a basecoat layer (5) on the component
(1) , (1 ) ,
b) Aufbringen eines Musters (7) auf das Bauteil (1) , insbesondere eines Zierstreifens oder einer Grafik, wobei das Muster (7) auf das Bauteil (1) auflackiert wird, insbesondere durch eine Sprühverfahren oder ein Druckverfahren, und b) applying a pattern (7) on the component (1), in particular a decorative strip or a graphic, wherein the pattern (7) is painted onto the component (1), in particular by a spray method or a printing method, and
c) Aufbringen einer Klarlackschicht (8) auf das Bauteil c) applying a clearcoat layer (8) to the component
(1) ,  (1) ,
dadurch gekennzeichnet, characterized,
d) dass das Muster (7) ohne eine dazwischen liegende Klar lackschicht (6) auf die Basislackschicht (5) aufgebracht wird. d) that the pattern (7) without an intermediate clear lacquer layer (6) on the base coat layer (5) is applied.
2. Lackierverfahren nach Anspruch 1, 2. painting method according to claim 1,
dadurch gekennzeichnet, dass das Muster (7) direkt auf die Basislackschicht (5) aufgebracht wird. characterized in that the pattern (7) is applied directly to the basecoat layer (5).
3. Lackierverfahren nach einem der vorhergehenden Ansprüche, gekennzeichnet durch folgenden Schritt: 3. coating method according to one of the preceding claims, characterized by the following step:
a) Ablüften der Basislackschicht (5) nach dem Auftragen der Basislackschicht (5) und vor dem Auftragen des Mus ters (7) oder a) bleeding the basecoat film (5) after the application of the basecoat film (5) and before the application of the pattern (7) or
b) Zwischentrocknen der Basislackschicht (5) nach dem Auf tragen der Basislackschicht (5) und vor dem Auftragen des Musters ( 7 ) . b) intermediate drying of the basecoat film (5) after the wear of the basecoat film (5) and before the application of the pattern (7).
4. Lackierverfahren nach einem der vorhergehenden Ansprüche, gekennzeichnet durch folgenden Schritt: 4. coating method according to one of the preceding claims, characterized by the following step:
a) Ablüften des Musters (7) nach dem Auftragen des Musters a) Bleeding the pattern (7) after applying the pattern
(7) und vor dem Auftragen der Klarlackschicht (8) oder b) Zwischentrocknen des Musters (7) nach dem Auftragen des  (7) and before the application of the clearcoat layer (8) or b) intermediate drying of the pattern (7) after the application of the
Musters (7) und vor dem Auftragen der Klarlackschicht Pattern (7) and before the application of the clearcoat
(8) . (8th) .
5. Lackierverfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Basislackschicht (5) und das Muster (7) nass-in-nass aufgetragen werden ohne ein zwischenzeitliches Trocknen. 5. coating method according to one of the preceding claims, characterized in that the base coat layer (5) and the pattern (7) wet-on-wet are applied without interim drying.
6. Lackierverfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Basislackschicht (5) und das Muster (7) und die Klarlackschicht (8) in einem 3-wet-Prozess nass-in-nass aufgetragen werden ohne ein zwischenzeitliches Trocknen . 6. coating method according to one of claims 1 to 4, characterized in that the basecoat film (5) and the pattern (7) and the clearcoat film (8) in a 3-wet process wet-on-wet are applied without interim drying ,
7. Lackierverfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, 7. coating method according to one of the preceding claims, characterized
a) dass die Basislackschicht (5) und das Muster (7) gemeinsam in einer Lackierkabine (17) oder in direkt aufeinander folgenden Prozessschritten aufgetragen werden, insbesondere nass-in-nass ohne ein zwischenzeitliches Trocknen, oder a) that the basecoat film (5) and the pattern (7) are applied together in a paint booth (17) or in directly successive process steps, in particular wet-on-wet without interim drying, or
b) dass das Muster (7) und die Klarlackschicht (8) gemeinsam in einer Lackierkabine oder in direkt aufeinander folgenden Prozessschritten aufgetragen werden, insbesondere nass-in-nass ohne ein zwischenzeitliches Trocknen, oder b) that the pattern (7) and the clearcoat layer (8) are applied together in a paint booth or in directly successive process steps, in particular wet-on-wet without interim drying, or
c) dass die Basislackschicht (5), das Muster (7) und die c) that the base coat layer (5), the pattern (7) and the
Klarlackschicht (8) gemeinsam in einer Lackierkabine (18) oder in direkt aufeinander folgenden Prozessschritten aufgetragen werden, insbesondere in einem 3- wet-Prozess ohne ein zwischenzeitliches Trocknen, oder d) dass die Basislackschicht (5) und das Muster (7) in ge- trennten Lackierkabinen (9, 13, 15) aufgetragen werden, oder Clearcoat (8) together in a paint booth (18) or in directly successive process steps, in particular in a 3-wet process without interim drying, or d) that the basecoat film (5) and the pattern (7) in separate paint booths (9, 13, 15) are applied, or
e) dass das Muster (7) und die Klarlackschicht (8) in getrennten Lackierkabinen (13, 15) aufgetragen werden. e) that the pattern (7) and the clearcoat layer (8) in separate paint booths (13, 15) are applied.
8. Lackierverfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, 8. coating method according to one of the preceding claims, characterized
a) dass die Basislackschicht (5), das Muster (7) und/oder die Klarlackschicht (8) mittels eines mehrachsigen, frei programmierbaren Lackierroboters automatisch auf- getragen wird, und/oder a) that the basecoat film (5), the pattern (7) and / or the clearcoat film (8) is automatically applied by means of a multi-axis, freely programmable painting robot, and / or
b) dass das Muster (7) von einem Applikationsgerät aufgetragen wird, das keinen Beschichtungsmittelnebel abgibt, sondern einen eng begrenzten Beschichtungsmittel- strahl, und/oder b) that the pattern (7) is applied by an application device which emits no coating agent mist, but a narrowly limited coating agent jet, and / or
c) dass die Basislackschicht (5) und die Klarlackschicht c) that the basecoat film (5) and the clearcoat film
(8) von einem Zerstäuber aufgetragen werden, insbesondere von einem Rotationszerstäuber, und/oder  (8) are applied by an atomizer, in particular by a rotary atomizer, and / or
d) dass die Basislackschicht (5) und/oder das Muster (7) und/oder die Klarlackschicht (8) aus Nasslack bestehen. d) that the basecoat film (5) and / or the pattern (7) and / or the clearcoat film (8) consist of wet paint.
9. Lackschicht, insbesondere auf einem Kraftfahrzeugkaros- seriebauteil (1), mit 9. lacquer layer, in particular on a Kraftfahrzeugkaros- seriebauteil (1), with
a) einer Basislackschicht (5), a) a basecoat film (5),
b) einem Muster (7), insbesondere einem Ziersteifen oder einer Grafik, und b) a pattern (7), in particular a decorative strip or a graphic, and
c) einer Klarlackschicht (8), c) a clearcoat film (8),
dadurch gekennzeichnet, characterized,
d) dass das Muster (7) ohne eine dazwischen liegende Klarlackschicht (6) auf die Basislackschicht (5) aufla- ckiert ist, insbesondere durch ein Sprühverfahren oder ein Druckverfahren. d) that the pattern (7) is applied to the basecoat film (5) without an intermediate clearcoat film (6). is, in particular by a spray method or a printing process.
10. Bauteil (1), insbesondere Kraftfahrzeugkarosseriebau- teil (1), mit einer Lackschicht nach Anspruch 9. 10. component (1), in particular motor vehicle body part (1), with a lacquer layer according to claim 9.
11. Lackieranlage zur Lackierung von Bauteilen (1), insbesondere zur Lackierung von Kraftfahrzeugkarosseriebauteilen (1), wobei die Lackieranlage auf die Bauteile (1) jeweils ei- ne Basislackschicht (5), ein Muster (7), insbesondere einen Ziersteifen oder eine Grafik, und eine Klarlackschicht (8) aufträgt, dadurch gekennzeichnet, dass die Lackieranlage das Muster (7) ohne eine dazwischen liegende Klarlackschicht (6) auf die Basislackschicht (5) auflackiert, insbesondere durch ein Sprühverfahren oder ein Druckverfahren. 11. Painting installation for painting components (1), in particular for painting motor vehicle body components (1), wherein the painting installation on the components (1) each one ne basecoat layer (5), a pattern (7), in particular a decorative stiffeners or graphics , and a clearcoat layer (8), characterized in that the painting installation lacquers the pattern (7) onto the basecoat layer (5) without an intermediate clearcoat layer (6), in particular by a spray method or a printing method.
12. Lackieranlage nach Anspruch 11, gekennzeichnet durch a) eine Lackierkabine (17), in der sowohl die Basislackschicht (5) als auch das Muster (7) aufgetragen werden, insbesondere nass-in-nass ohne eine zwischenzeitliche12. paint shop according to claim 11, characterized by a) a painting booth (17) in which both the base coat layer (5) and the pattern (7) are applied, in particular wet-on-wet without an interim
Trocknung, oder Drying, or
b) eine Lackierkabine, in der sowohl das Muster (7) als auch die Klarlackschicht (8) aufgetragen werden, insbesondere nass-in-nass ohne eine zwischenzeitliche Trock- nung, oder b) a painting booth in which both the pattern (7) and the clearcoat layer (8) are applied, in particular wet-on-wet without any intermediate drying, or
c) eine Lackierkabine (18), in der die Basislackschicht c) a painting booth (18) in which the basecoat layer
(5), das Muster (7) und die Klarlackschicht (8) aufgetragen werden, insbesondere in einem 3-wet-Prozess nass-in-nass ohne ein zwischenzeitliches Trocknen oder Ablüften, oder  (5), the pattern (7) and the clearcoat layer (8) are applied, in particular in a wet-in-wet 3-wet process without interim drying or venting, or
d) mehrere Lackierkabinen (9, 13) , wobei in einer der Lackierkabinen (9, 13) die Basislackschicht (5) aufgetragen wird, wohingegen in der anderen Lackierkabine das Muster (7) aufgetragen wird, oder e) mehrere Lackierkabinen, wobei in einer der Lackierkabinen das Muster (7) aufgetragen wird, wohingegen in der anderen Lackierkabine die Klarlackschicht (8) aufgetragen wird, oder d) several paint booths (9, 13), wherein in one of the paint booths (9, 13), the base coat layer (5) is applied, whereas in the other paint booth, the pattern (7) is applied, or e) several paint booths, wherein in one of the paint booths the pattern (7) is applied, whereas in the other spray booth, the clear coat layer (8) is applied, or
f) drei Lackierkabine (9, 13, 15), in denen nacheinander getrennt voneinander die Basislackschicht (5), das Muster (7) und die Klarlackschicht (8) aufgetragen werden. f) three painting booths (9, 13, 15), in which the basecoat film (5), the pattern (7) and the clearcoat film (8) are applied one after the other separately.
13. Lackieranlage nach einem der Ansprüche 11 bis 12, 13. Painting installation according to one of claims 11 to 12,
gekennzeichnet durch marked by
a) eine Trocknungsstation (12) zum Zwischentrocknen der a) a drying station (12) for intermediate drying of the
Basislackschicht (5), oder  Basecoat (5), or
b) eine Ablüftstation (12 ') zum Ablüften der Basislackschicht ( 5 ) . b) a venting station (12 ') for venting the basecoat film (5).
14. Lackieranlage nach einem der Ansprüche 11 bis 13, 14. Painting installation according to one of claims 11 to 13,
gekennzeichnet durch marked by
a) eine Trocknungsstation (14) zum Zwischentrocknen des Musters (7), oder a) a drying station (14) for intermediate drying of the pattern (7), or
b) eine Ablüftstation (14') zum Ablüften des Musters (7) . b) a venting station (14 ') for venting the pattern (7).
15. Lackieranlage nach einem der Ansprüche 11 bis 14, 15. Painting installation according to one of claims 11 to 14,
dadurch gekennzeichnet, dass die Lackieranlage mindestens einen Applikator aufweist, der einen scharf abgegrenzten Be- schichtungsmittelstrahl erzeugt. characterized in that the painting installation has at least one applicator which generates a sharply delineated coating agent jet.
16. Lackieranlage nach Anspruch 15, dadurch gekennzeichnet, dass der mindestens eine Applikator, der einen scharf abgegrenzten Beschichtungsmittelstrahl erzeugt, an einem Roboter befestigt ist. 16. Painting installation according to claim 15, characterized in that the at least one applicator, which generates a sharply delimited coating agent jet, is fastened to a robot.
* * * * *  * * * * *
EP14704522.3A 2013-02-11 2014-02-05 Painting method Active EP2953733B1 (en)

Applications Claiming Priority (2)

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DE102013002433.1A DE102013002433A1 (en) 2013-02-11 2013-02-11 Painting process and painting plant for decorative stripes
PCT/EP2014/000310 WO2014121927A1 (en) 2013-02-11 2014-02-05 Painting method and painting facility for producing decorative strips

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EP2953733A1 true EP2953733A1 (en) 2015-12-16
EP2953733B1 EP2953733B1 (en) 2020-04-01

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CN (2) CN104981300A (en)
DE (1) DE102013002433A1 (en)
ES (1) ES2792918T3 (en)
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CN104981300A (en) 2015-10-14
WO2014121927A1 (en) 2014-08-14
DE102013002433A1 (en) 2014-08-14
ES2792918T3 (en) 2020-11-12
US20160001322A1 (en) 2016-01-07
CN110538782A (en) 2019-12-06
US9744560B2 (en) 2017-08-29
JP2016511689A (en) 2016-04-21
MX2015009920A (en) 2015-09-25
EP2953733B1 (en) 2020-04-01

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