DE102005061451A1 - Production of thermoplastic article with colored decorative comprises applying lacquer coating to female mold in injection molding machine, molding article, leaving gap between it and lacquer layer, and injecting colored material into gap - Google Patents
Production of thermoplastic article with colored decorative comprises applying lacquer coating to female mold in injection molding machine, molding article, leaving gap between it and lacquer layer, and injecting colored material into gap Download PDFInfo
- Publication number
- DE102005061451A1 DE102005061451A1 DE200510061451 DE102005061451A DE102005061451A1 DE 102005061451 A1 DE102005061451 A1 DE 102005061451A1 DE 200510061451 DE200510061451 DE 200510061451 DE 102005061451 A DE102005061451 A DE 102005061451A DE 102005061451 A1 DE102005061451 A1 DE 102005061451A1
- Authority
- DE
- Germany
- Prior art keywords
- thermoplastic
- injection molding
- molding machine
- colored
- gap
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
- B29C45/14508—Joining juxtaposed sheet-like articles, e.g. for making trim panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
- B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
- B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
- B29C37/0032—In-mould coating, e.g. by introducing the coating material into the mould after forming the article the coating being applied upon the mould surface before introducing the moulding compound, e.g. applying a gelcoat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
- B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
- B29C2037/0035—In-mould coating, e.g. by introducing the coating material into the mould after forming the article the coating being applied as liquid, gel, paste or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Die Erfindung betrifft ein thermoplastisches Bauteil mit einer farbigen Dekorschicht, als auch ein Verfahren zur Herstellung des Bauteils.The The invention relates to a thermoplastic component with a colored Decorative layer, as well as a method for producing the component.
In zunehmendem Umfang werden auf vielen Gebieten der angewandten Technik Bauteile mit einem metallischen Grundkörper durch gleich dimensionierte Bauteile aus Kunststoff ersetzt. Besondere Bedeutung hat dies beispielsweise im Fahrzeugbau, denn bekanntlich lassen sich mit Bauteilen auf Basis von Kunststoffen erhebliche Gewichtsreduzierungen erzielen und zudem stellen Kunststoffe eine kostengünstige Alternative zu den sonst verwendeten metallischen Werkstoffen dar. Schon aus ästhetischen Gründen wird es häufig notwendig sein, die Bauteile mit einer farbigen Dekorschicht zu überziehen. In der Kunststofftechnik wurden hierzu verschiedene Ansätze entwickelt.In Increasing volumes are used in many fields of applied technology Components with a metallic base body by the same dimensioned Replaced plastic components. This has special significance, for example in vehicle construction, because it is well known to be based on components based on Plastics achieve significant weight reductions and also Plastics make a cost-effective Alternative to the otherwise used metallic materials. Already for aesthetic reasons will it often be necessary to coat the components with a colored decorative layer. Various approaches have been developed in plastics technology.
Der Rohling aus Kunststoff kann schlicht mit einem farbigen Lack überzogen werden. Die Lackierung erfordert jedoch einen gesonderten Arbeitsschritt und dazugehöriges Equipment. Zudem ist das Aufbringen einer farbigen Lackschicht bei stark konturierten Bauteilen verfahrenstechnisch aufwendig.Of the Plastic blank can simply be coated with a colored varnish become. However, the painting requires a separate step and related Equipment. In addition, the application of a colored lacquer layer is included highly contoured components procedurally complex.
Anfang
der 80er Jahre wurde das sogenannte Inmould-Coating-Verfahren (IMC-Verfahren)
entwickelt, bei dem ein duroplastisches, faserverstärktes Material
(SMC) mit einer dünnen
Beschichtung zu Dekorzwecken versehen wird. Hierbei wird – vorzugsweise
nach der Aushärtung
des duroplastischen Materials – zunächst eine
Werkzeughälfte
der Werkzeugform leicht geöffnet
und eine der gewünschten Beschichtungsdicke
entsprechende Lackmenge in den entstandenen Hohlraum eingebracht.
Durch erneutes Schließen
des Formwerkzeugs wird der Lack auf der zu beschichtenden Oberfläche des
duroplastischen Materials verteilt und anschließend ausgehärtet.
WO 95/13177A1 beschreibt ein Spritzgussverfahren, bei dem man eine Spritzgießmaschine bereitstellt und in dieser eine Beschichtungsmasse in Form von Kunststofflack einbringt. Die Spritzgießmaschine hat eine Werkzeugform, in der ein thermoplastisches Bauteil bereitstellt und die so ausgelegt ist, dass ein spaltartiger Hohlraum zwischen dem Bauteil und einer benachbarten Fläche der Werkzeugform entsteht. Die Spritzgießmaschine wird zum Einspritzen des Lackes in den Hohlraum veranlasst. Der Lack überzieht anschließend die Oberfläche des thermoplastischen Bauteils.WHERE 95 / 13177A1 describes an injection molding process in which a injection molding machine provides and in this a coating material in the form of plastic paint brings. The injection molding machine has a mold in which a thermoplastic component provides and which is designed so that a gap-like cavity between the component and an adjacent surface of the tool shape is created. The injection molding machine is caused to inject the paint into the cavity. The paint covers subsequently the surface of the thermoplastic component.
Bekannt ist ferner das sogenannte Inmould-Coating-Verfahren zur Herstellung von Bauteilen mit farbiger Dekorschicht. Zunächst wird eine Lackschicht in eine Werkzeugform eingebracht und anschließend mit einem Thermoplast, zum Beispiel mit PUR, unterformt. Aufgrund der hohen Druck- und Schergeschwindigkeiten beim Einspritzen des Thermoplasts sind die Anforderungen an die Lackschicht jedoch hoch.Known is also the so-called in-mold coating process for the production of components with a colored decorative layer. First, a varnish layer introduced into a mold and then with a thermoplastic, for example with PUR, underformed. Due to the high pressure and shear rates When injecting the thermoplastic are the requirements of the Lacquer layer, however, high.
Der vorliegenden Erfindung liegt nun die Aufgabe zu Grunde, ein Verfahren bereitzustellen, das zumindest einen alternativen, gegebenenfalls auch verbesserten Zugang zu thermoplastischen Bauteilen mit einer farbigen Dekorschicht ermöglicht.Of the The present invention is based on the object, a method provide at least one alternative, if appropriate also improved access to thermoplastic components with a colored decorative layer allows.
Diese Aufgabe wird durch das Verfahren zur Herstellung eines thermoplastischen Bauteils mit einer farbigen Dekorschicht nach Anspruch 1 gelöst. Das erfindungsgemäße Verfahren umfasst die Schritte:
- (i) Bereitstellen einer Spritzgieß-Maschine mit einer aus einer Patrize und ersten Matrize zusammensetzbaren Werkzeugform;
- (ii) Auftragen einer Lackschicht in der ersten Matrize;
- (iiii) Vor, nach oder während des Schritts (ii): Bereitstellen eines thermoplastischen Bauteils in der Werkzeugform der Spritzgieß-Maschine, wobei die Werkzeugform so ausgebildet ist, dass zwischen dem Bauteil und der an der ersten Matrize haftenden Lackschicht ein Hohlraum verbleibt; und
- (iv) Einspritzen eines farbigen Dekormaterials in den Hohlraum zwischen dem thermoplastischen Bauteil und der Lackschicht.
- (i) providing an injection molding machine having a tool mold assemblable from a male and female dies;
- (ii) applying a paint layer in the first die;
- (iiii) before, after, or during step (ii): providing a thermoplastic component in the mold of the injection molding machine, the mold being configured to leave a cavity between the component and the resist layer adhered to the first mold; and
- (iv) injecting a colored decorative material into the cavity between the thermoplastic component and the lacquer layer.
Mit dem erfindungsgemäßen Verfahren lässt sich in einem Arbeitsablauf ein thermoplastisches Bauteil mit einer farbigen Dekorschicht herstellen, dessen Oberfläche mit Lackschicht bedeckt ist. Eine nachträgliche Lackierung entfällt.With the method according to the invention let yourself in a workflow a thermoplastic component with a colored Make decorative layer whose surface covered with varnish layer is. An afterthought Painting is eliminated.
Vorzugsweise erfolgt das Bereitstellen des Bauteils im Schritt (iii) derart, dass unter Verwendung derselben Patrize der Spritzgieß-Maschine jedoch mit einer zweiten Matrize eine für das thermoplastische Bauteil benötigte zweite Werkzeugform bereitgestellt wird. Ferner wird eine Thermoplastmasse in der Spritzgieß-Maschine bereitgestellt und anschließend durch Spritzgießen der Thermoplastmasse in die zweite Werkzeugform das Bauteil hergestellt wird. Die Herstellung des thermoplastischen Bauteils als auch das Aufbringen der farbigen Dekorschicht kann demnach in einem gemeinsamen Arbeitsprozess durchgeführt werden.Preferably the provision of the component takes place in step (iii) that using the same male of the injection molding machine but with a second die one for the thermoplastic component needed second mold is provided. Furthermore, a thermoplastic material in the injection molding machine provided and then by injection molding the thermoplastic material is produced in the second tool mold the component. The production of the thermoplastic component as well as the application The colored decorative layer can therefore be in a joint work process carried out become.
Für das Bauteil kommt jedes thermoplastische Material in Betracht, das eine ausreichende Steifigkeit und Festigkeit für die jeweilige Verwendung des Bauteils aufweist. Eventuell vorhandene Oberflächenstörungen, wie z. B. durch Glasfaserverstärkung, werden durch das Dekormaterial geglättet.For the component Any thermoplastic material that has sufficient rigidity can be considered and strength for having the particular use of the component. Any existing surface defects, such as B. by glass fiber reinforcement, are smoothed by the decorative material.
Als Dekormaterial werden – speziell für großflächige Bauteile – bevorzugt leichtfließende thermoplastische Elastomere, wie zum Beispiel TPU, eingesetzt. Weiterhin können auch Vorprodukte von Thermoplasten Einsatz finden, deren Polymerisation im geschlossenen Werkzeug durch beispielsweise thermische Behandlung vor oder während des Einspritzvorgangs ausgelöst wird. Dem Dekormaterial werden herkömmliche, für Kunststoffe geeignete Farbstoffe beigemengt. Das Dekormaterial ist weiterhin ausgelegt, an der Lackschicht und dem thermoplastischen Bauteil zu haften und diese damit miteinander zu verbinden. Der Fachmann wird in Kenntnis der Materialeigenschaften des Lacks und des Thermoplast aus seinem Fachwissen heraus oder anhand weniger Versuche eine Wahl des Dekorstoffes treffen können.When Decor material will be - especially for large-area components - preferred easyflowing thermoplastic elastomers, such as TPU used. Farther can also use intermediates of thermoplastics whose polymerization in a closed mold by, for example, thermal treatment before or during of the injection process triggered becomes. The decor material is added to conventional, suitable for plastics dyes. The decor material is further designed, on the lacquer layer and to adhere to the thermoplastic component and thus with each other connect to. The person skilled in the art becomes aware of the material properties of the varnish and the thermoplastic out of his expertise or can make a choice of decorative material based on a few experiments.
Die Lackschicht besteht vorzugsweise aus einem kratzfesten, transparenten oder zumindest partiell transparenten Material. Partiell transparent meint hier, dass zumindest ein Farbton des Bauteils durch die darunter liegende farbige Dekorschicht mitgeprägt wird.The Paint layer is preferably made of a scratch-resistant, transparent or at least partially transparent material. Partially transparent means here that at least one shade of the component through the underneath lying colored decorative layer is coined.
Das Auftragen der Lackschicht in der ersten Matrize erfolgt vorzugsweise mittels Sprühtechnik unter Verwendung eines Flüssiglacks.The Applying the lacquer layer in the first die is preferably carried out by means of spraying technology Use of a liquid paint.
Das erfindungsgemäße Verfahren findet vorzugsweise Verwendung im (Personen-) Fahrzeugbau, insbesondere zur Herstellung einer spritzgegossenen, thermoplastischen Kunststoffbeplankung, mit einer farbigen, kratzfesten Dekorschicht.The inventive method is preferably used in (passenger) vehicle construction, in particular for producing an injection-molded, thermoplastic plastic sheeting, with a colored, scratch-resistant decorative layer.
Ein nach dem erfindungsgemäßen Verfahren erhaltenes oder erhältliches thermoplastisches Bauteil mit einer farbigen Dekorschicht stellt einen weiteren Aspekt der Erfindung dar. Das Bauteil unterscheidet sich von dem aus dem Stand der Technik Bekannten durch seinen Aufbau: Zuunterst ein als Träger agierendes thermoplastisches Bauteil, darauf eine mit dem Bauteil in Verbindung stehende Schicht aus dem farbigen Dekormaterial und schließlich obenauf eine mit der farbigen Dekorschicht verbundene Lackschicht.One obtained by the process according to the invention or available thermoplastic component with a colored decorative layer provides a further aspect of the invention. The component distinguishes from the known from the prior art by its structure: At least one as a carrier acting thermoplastic component, one with the component related layer of the colored decor material and finally on top a paint layer bonded to the colored decorative layer.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels näher erläutert. Es zeigen:The Invention will be explained in more detail with reference to an embodiment. It demonstrate:
Gleichzeitig,
vor oder während
des Spritzgießens
des thermoplastischen Bauteils
Anschließend wird
die zweite Matrize
- 1010
- Spritzgieß-MaschineInjection molding machine
- 1212
- zweiter Schneckenextrudersecond Screw extruder
- 1414
- Patrizepunch
- 1616
- zweite Matrizesecond die
- 1818
- thermoplastisches Bauteilthermoplastic component
- 2020
- erste Matrizefirst die
- 2222
- Lackschichtpaint layer
- 2424
- erster Schneckenextruderfirst Screw extruder
- 2626
- Dekormaterialdecorative material
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005061451.5A DE102005061451B4 (en) | 2005-12-22 | 2005-12-22 | Thermoplastic component with a colored decorative layer and method of manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005061451.5A DE102005061451B4 (en) | 2005-12-22 | 2005-12-22 | Thermoplastic component with a colored decorative layer and method of manufacture |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102005061451A1 true DE102005061451A1 (en) | 2007-07-05 |
DE102005061451B4 DE102005061451B4 (en) | 2015-11-12 |
Family
ID=38135539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102005061451.5A Expired - Fee Related DE102005061451B4 (en) | 2005-12-22 | 2005-12-22 | Thermoplastic component with a colored decorative layer and method of manufacture |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010043947A1 (en) | 2010-11-16 | 2012-05-16 | Robert Bosch Gmbh | Method for manufacturing light reflecting device i.e. reflection mirror, for e.g. head-up display, involves applying coating material on surface of cavity of injection molding tool, and applying base body to coating material |
DE102013212460A1 (en) | 2013-06-27 | 2014-12-31 | Robert Bosch Gmbh | Method and device for producing a reflection mirror |
DE102015201261A1 (en) * | 2015-01-26 | 2016-07-28 | Johnson Controls Interiors Management Gmbh | INDOOR EQUIPMENT FOR VEHICLES AND A METHOD FOR MANUFACTURING SUCH A INTERIOR EQUIPMENT PART |
US20180178736A1 (en) * | 2015-06-03 | 2018-06-28 | Weidplas Gmbh | Component |
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DE1629710B1 (en) * | 1967-12-07 | 1971-02-04 | Sattler Atlan Werk Kg L | Method for producing an article from plastic with a patterned surface |
DE2461925C3 (en) * | 1974-01-04 | 1978-11-02 | Societa Internazionale Per Lo Sfruttamento Di Brevetti S.A., Panama | Method and device for painting moldings made of thermoplastic material by injection molding |
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JPS60250927A (en) * | 1984-05-28 | 1985-12-11 | Mitsubishi Gas Chem Co Inc | Manufacture of synthetic resin molding excellent in haze prevention performance |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE102010043947A1 (en) | 2010-11-16 | 2012-05-16 | Robert Bosch Gmbh | Method for manufacturing light reflecting device i.e. reflection mirror, for e.g. head-up display, involves applying coating material on surface of cavity of injection molding tool, and applying base body to coating material |
DE102013212460A1 (en) | 2013-06-27 | 2014-12-31 | Robert Bosch Gmbh | Method and device for producing a reflection mirror |
DE102015201261A1 (en) * | 2015-01-26 | 2016-07-28 | Johnson Controls Interiors Management Gmbh | INDOOR EQUIPMENT FOR VEHICLES AND A METHOD FOR MANUFACTURING SUCH A INTERIOR EQUIPMENT PART |
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Also Published As
Publication number | Publication date |
---|---|
DE102005061451B4 (en) | 2015-11-12 |
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