DE102004049271A1 - Molded polypropylene product, in particular for automobiles, has grained surface with matt finish in valleys and gloss finish on peaks - Google Patents
Molded polypropylene product, in particular for automobiles, has grained surface with matt finish in valleys and gloss finish on peaks Download PDFInfo
- Publication number
- DE102004049271A1 DE102004049271A1 DE200410049271 DE102004049271A DE102004049271A1 DE 102004049271 A1 DE102004049271 A1 DE 102004049271A1 DE 200410049271 DE200410049271 DE 200410049271 DE 102004049271 A DE102004049271 A DE 102004049271A DE 102004049271 A1 DE102004049271 A1 DE 102004049271A1
- Authority
- DE
- Germany
- Prior art keywords
- grain
- valleys
- plastic molding
- finish
- peaks
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
- B29C45/372—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings provided with means for marking or patterning, e.g. numbering articles
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
Abstract
Description
Die Erfindung betrifft ein Kunststoff-Formteil gemäß dem Oberbegriff von Patentanspruch 1 sowie ein Verfahren zu dessen Herstellung gemäß dem Oberbegriff von Patentanspruch 5.The The invention relates to a plastic molding according to the preamble of claim 1 and a method for its production according to the preamble of claim 5th
Kunststoff-Formteile werden beispielsweise im Bereich des Innenraums von Kraftfahrzeugen eingesetzt. Dabei ist es wichtig, dass der Innenraum eine hohe Wertanmutung aufweist. Bei Kunststoff-Formteilen besitzt dabei eine matte Oberfläche eine besonders hohe Wertanmutung.Plastic moldings For example, in the area of the interior of motor vehicles used. It is important that the interior has a high value appearance having. In the case of plastic molded parts, a matte surface has a particularly high value appearance.
Werden Formteile aus dem Werkstoff Polypropylen eingesetzt, so ergibt sich bei matten Oberflächen das Problem einer starken Schreibempfindlichkeit der Oberfläche. Unter Schreibempfindlichkeit wird die Eigenschaft einer Oberfläche verstanden, dass schon geringe Berührungen mit harten Gegenständen wie Fingernägeln oder Schlüsseln eine bleibende Markierung auf der Oberfläche, den so genannten Schreibeffekt, hinterlassen.Become Molded parts made of the material polypropylene used, it follows on matt surfaces the problem of a strong writing sensitivity of the surface. Under Write sensitivity is the property of a surface that understands even slight touches with hard objects like fingernails or keys a permanent marking on the surface, the so-called writing effect, leave.
Um
das Problem der Schreibempfindlichkeit zu lösen, wird beispielsweise in
der gattungsbildenden
Der Erfindung liegt die Aufgabe zugrunde, ein Kunststoff-Formteil aus Polypropylen sowie ein Verfahren zu dessen Herstellung vorzuschlagen, welches eine Oberfläche mit einer Narbung aufweist, die sowohl den Anforderungen an eine geringe Schreibempfindlichkeit genügt als auch einen matten optischen Gesamteindruck liefert.Of the Invention is based on the object, a plastic molding of polypropylene and to propose a process for its production, which a surface with a grain that meets both the requirements of a low write sensitivity is sufficient as well as a matte optical Overall impression delivers.
Die Aufgabe wird erfindungsgemäß durch die Merkmale der Ansprüche 1 und 6 gelöst. Danach wird ein Kunststoff-Formteil vorgeschlagen, welches eine genarbte Oberfläche mit Narbhügeln und Narbtälern aufweist. Dabei weisen die Narbtäler eine matte und die Kuppen der Narbhügel eine glänzende Oberfläche auf. So besitzt die Oberfläche des Formteils einen matten Gesamteindruck. Gleichzeitig ist der Bereich der Oberfläche, welcher direkten Kontakt mit der Umgebung hat, nämlich die Kuppen der Narbhügel, durch die glänzende Ausführung seiner Oberfläche vor einem weiteren Aufglänzen (Schreibeffekt) besser geschützt, während die eigentliche matte Oberfläche der Narbtäler keinen direkten Umgebungskontakt besitzt.The The object is achieved by the Features of the claims 1 and 6 solved. Thereafter, a plastic molding is proposed, which is a grained surface with peat bumps and scarring having. This point the Narbtäler a dull and the crests of the tufts a shiny surface. So owns the surface the molding a matte overall impression. At the same time is the Area of the surface, which has direct contact with the environment, namely the crests of the Narbhügel, through the shiny one execution its surface before another glaring (Writing effect) better protected, while the actual matte surface the valleys has no direct environmental contact.
Vorteilhafterweise weist die mittlere Höhe der Narbhügel näherungsweise 100 μm auf. Diese Höhe hat sich als optimal erwiesen, um die untenliegenden Narbtäler vor dem Kontakt mit Gegenständen zu schützen (Anspruch 2).advantageously, indicates the mean height of the grain hills approximately 100 μm. This height has proven to be optimal to the lower Narbtäler ago the contact with objects to protect (Claim 2).
In einer vorteilhaften Ausführungsform weist die Oberfläche der Kuppen der Narbhügel im Vergleich zur Oberfläche der Narbtäler eine geringere Rauhigkeit auf. Durch die rauere Oberfläche erscheint die Oberfläche der Narbtäler matt, was den Gesamteindruck der Oberfläche matt erscheinen lässt (Anspruch 3).In an advantageous embodiment indicates the surface the crests of the tench hills in comparison to the surface the valleys a lower roughness on. Through the rougher surface appears the surface the valleys matt, which makes the overall impression of the surface appear dull (claim 3).
Weiterhin wird ein Verfahren zum Herstellen eines Kunststoff-Formteils mit einer mit einer Narbung versehenen Oberfläche durch ein Spritzgießverfahren vorgeschlagen. Bei dem Verfahren werden die Narbtäler der Narbung mit einer matten und die Kuppen der Narbhügel der Narbung mit einer glänzenden Oberfläche versehen. Durch dieses Verfahren kann eine hochwertige, matte Oberfläche ohne anschließende Verfahrensschritte zur Nachbehandlung des Formteils erzielt werden (Anspruch 5).Farther is a method for producing a plastic molding with a with a grain provided surface by an injection molding process proposed. In the process, the Narbtäler the Grain with a dull and the crests of the mound of the Graining with a shiny surface Mistake. This process allows a high-quality, matt surface without subsequent process steps be achieved for the aftertreatment of the molding (claim 5).
In einer vorteilhaften Ausgestaltung wird das Aufbringen der Narbung beim Spritzgießen durch Einbringen einer negativen Narbung in das Spritzgieß-Werkzeug vorgenommen. Auf diese Weise wird das Kunststoff-Formteil in einem einzigen Arbeitsschritt kostengünstig und effizient hergestellt. (Anspruch 6).In An advantageous embodiment is the application of the grain in injection molding by introducing a negative grain into the injection mold performed. In this way, the plastic molding is in one single operation cost-effective and manufactured efficiently. (Claim 6).
Zweckmäßigerweise wird das Aufbringen der negativen Narbung in das Spritzgieß-Werkzeug durch ein Ätzverfahren durchgeführt. Damit liegt ein hochpräzises und effizientes Bearbeitungsverfahren für die Spritzgieß-Werkzeuge vor, welches reproduzierbare Ergebnisse liefert (Anspruch 7).Conveniently, is the application of the negative grain in the injection mold by an etching process carried out. This is a high-precision and efficient machining process for the injection molds which gives reproducible results (claim 7).
Weitere Ausgestaltungen und Vorteile der Erfindung gehen aus den übrigen Unteransprüchen und der Beschreibung hervor.Further Embodiments and advantages of the invention will become apparent from the other dependent claims and the description.
In der Zeichnung ist die Erfindung anhand eines Ausführungsbeispiels näher erläutert. Dabei zeigtIn the drawing, the invention is based on an embodiment explained in more detail. It shows
Das
Kunststoff-Formteil
Untersuchungen
haben ergeben, dass diese Schreibempfindlichkeit in direktem Zusammenhang mit
der Rauhigkeit
Da
aber ein Oberflächeneindruck
erzielt werden soll, der so matt wie möglich ist, wird die Oberfläche
Dabei
sind die Kuppen
Bei
der Tiefe
Die
Narbhügel
Die
Verteilung der Narbhügel
Ein
Formteil
Hergestellt
wird das Kunststoff-Formteil
Das
Verfahren und das Kunststoff-Formteil
Insbesondere die quantitativen Angaben über Tiefe und Breite der Narbhügel besitzen nur exemplarischen Charakter und stellen keine Beschränkung dar.In particular, the quantitative information on the depth and width of the grain marshes have only ex emplarian character and are not limiting.
Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410049271 DE102004049271B4 (en) | 2004-10-09 | 2004-10-09 | Plastics molding |
JP2005294318A JP2006111009A (en) | 2004-10-09 | 2005-10-07 | Plastic molded article |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410049271 DE102004049271B4 (en) | 2004-10-09 | 2004-10-09 | Plastics molding |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102004049271A1 true DE102004049271A1 (en) | 2006-04-20 |
DE102004049271B4 DE102004049271B4 (en) | 2008-08-14 |
Family
ID=36120403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410049271 Expired - Fee Related DE102004049271B4 (en) | 2004-10-09 | 2004-10-09 | Plastics molding |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP2006111009A (en) |
DE (1) | DE102004049271B4 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005039124A1 (en) * | 2005-08-15 | 2007-02-22 | Faurecia Innenraum Systeme Gmbh | Motor vehicle`s two-layered composite part e.g. instrument panel, manufacturing method, involves producing carrier from fibre reinforced thermoplastic synthetic material and overspraying carrier with synthetic material without fibre parts |
EP1878559A1 (en) * | 2006-05-25 | 2008-01-16 | HONDA MOTOR CO., Ltd. | Irregular surface structure of an object surface |
EP2014435A1 (en) * | 2007-06-06 | 2009-01-14 | Nissan Motor Co., Ltd. | Skin material, skin material production method and composite skin for automotive interior trim |
DE202009014165U1 (en) | 2009-10-20 | 2010-04-01 | J. & F. Krüth GmbH | Device for injection molding of plastic components and use of this device and injection molded parts |
EP2236333A1 (en) * | 2009-03-30 | 2010-10-06 | REUM GmbH & Co. Betriebs KG | Covering, in particular for an instrument panel component and injection moulding tool for producing same |
US20120142242A1 (en) * | 2010-12-02 | 2012-06-07 | International Automotive Components Group Gmbh | Interior Paneling Component For A Motor Vehicle |
DE102015011417A1 (en) | 2015-08-29 | 2017-03-02 | Audi Ag | Component with a partially structured surface and corresponding tool |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109866368A (en) * | 2019-03-08 | 2019-06-11 | 武汉湘伟模塑有限公司 | A kind of product surface mark structure and its manufacture mold |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3931299C2 (en) * | 1989-09-20 | 1998-07-02 | Targor Gmbh | Plastic molding with a grained surface and improved scratch resistance |
DE10014432A1 (en) * | 2000-03-16 | 2001-09-20 | Volkswagen Ag | Coating method for molded plastic vehicle components involves roughening the surface of the molded component during the molding stage |
-
2004
- 2004-10-09 DE DE200410049271 patent/DE102004049271B4/en not_active Expired - Fee Related
-
2005
- 2005-10-07 JP JP2005294318A patent/JP2006111009A/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3931299C2 (en) * | 1989-09-20 | 1998-07-02 | Targor Gmbh | Plastic molding with a grained surface and improved scratch resistance |
DE10014432A1 (en) * | 2000-03-16 | 2001-09-20 | Volkswagen Ag | Coating method for molded plastic vehicle components involves roughening the surface of the molded component during the molding stage |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005039124A1 (en) * | 2005-08-15 | 2007-02-22 | Faurecia Innenraum Systeme Gmbh | Motor vehicle`s two-layered composite part e.g. instrument panel, manufacturing method, involves producing carrier from fibre reinforced thermoplastic synthetic material and overspraying carrier with synthetic material without fibre parts |
DE102005039124B4 (en) * | 2005-08-15 | 2009-11-26 | Faurecia Innenraum Systeme Gmbh | Process for producing a two-layer composite part |
EP1878559A1 (en) * | 2006-05-25 | 2008-01-16 | HONDA MOTOR CO., Ltd. | Irregular surface structure of an object surface |
EP2014435A1 (en) * | 2007-06-06 | 2009-01-14 | Nissan Motor Co., Ltd. | Skin material, skin material production method and composite skin for automotive interior trim |
EP2236333A1 (en) * | 2009-03-30 | 2010-10-06 | REUM GmbH & Co. Betriebs KG | Covering, in particular for an instrument panel component and injection moulding tool for producing same |
DE202009014165U1 (en) | 2009-10-20 | 2010-04-01 | J. & F. Krüth GmbH | Device for injection molding of plastic components and use of this device and injection molded parts |
US20120142242A1 (en) * | 2010-12-02 | 2012-06-07 | International Automotive Components Group Gmbh | Interior Paneling Component For A Motor Vehicle |
DE102015011417A1 (en) | 2015-08-29 | 2017-03-02 | Audi Ag | Component with a partially structured surface and corresponding tool |
Also Published As
Publication number | Publication date |
---|---|
JP2006111009A (en) | 2006-04-27 |
DE102004049271B4 (en) | 2008-08-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: EISSLER, EWALD, 71157 HILDRIZHAUSEN, DE Owner name: STEEB, HOLGER, DIPL.-ING., 72072 TUEBINGEN, DE Owner name: RAITZ, MICHAEL, DIPL.-ING., 71065 SINDELFINGEN, DE |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |