EP0167923A2 - Process for applying a decoration and an anticorrosive lacquer to metallic can bodies - Google Patents
Process for applying a decoration and an anticorrosive lacquer to metallic can bodies Download PDFInfo
- Publication number
- EP0167923A2 EP0167923A2 EP85107862A EP85107862A EP0167923A2 EP 0167923 A2 EP0167923 A2 EP 0167923A2 EP 85107862 A EP85107862 A EP 85107862A EP 85107862 A EP85107862 A EP 85107862A EP 0167923 A2 EP0167923 A2 EP 0167923A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- lacquer
- corrosion
- bodies
- preventing
- decorative
- 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
- 239000004922 lacquer Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims description 27
- 238000005034 decoration Methods 0.000 title description 2
- 239000002184 metal Substances 0.000 claims abstract description 4
- 238000004070 electrodeposition Methods 0.000 claims description 12
- 239000003973 paint Substances 0.000 claims description 10
- 238000004132 cross linking Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 238000003618 dip coating Methods 0.000 claims description 6
- 238000010422 painting Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 abstract description 21
- 238000000576 coating method Methods 0.000 abstract description 21
- 238000007654 immersion Methods 0.000 abstract description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 description 11
- 239000010410 layer Substances 0.000 description 10
- 230000007797 corrosion Effects 0.000 description 9
- 239000002966 varnish Substances 0.000 description 7
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000019612 pigmentation Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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
Definitions
- the invention relates to a method for decorating and corrosion-preventing painting of metallic can bodies, preferably made of tin-plated sheet metal, in particular sealed can bodies on the bottom side, in which a decorative print is first applied to the outer surface of the can body and hardened by drying and / or crosslinking before the application of the corrosion-preventing paint.
- the invention has for its object to develop a method of the type described in the introduction so that a reliable corrosion-preventing coating of the entire surface of the can body is achieved with a simultaneous reduction in the process steps and a reduction in equipment and personnel, while at the same time saving paint material.
- the method mentioned in the introduction is characterized in that the can body, which is provided with a decorative print, is subjected to an electro-dip coating with subsequent drying and / or crosslinking of the dip lacquer in order to apply the anti-corrosion lacquer.
- Electrocoating is known for coating metallic hollow bodies, in particular in the automotive industry, and has also been described in connection with the application of a coating to can bodies (DE-OS 20 24 106).
- the application of the corrosion-preventing lacquer is provided by immersing the can bodies of three-part cans after the completion of the can bodies before the bodies are provided with a bottom and filled.
- the question of a decorative print is not addressed in the previous publication. If such a decorative print were to be provided, it would have to be applied to the corrosion-preventing lacquer layer, which would cause considerable difficulties, which are in particular a risk of damage to the corrosion-preventing lacquer layer, which cannot be avoided by the mechanical stress on the can body during the printing process.
- the possibility of electrocoating can bodies in the process for decorating and corrosion-preventing painting of such can bodies without affecting the development of the The method described in the introduction has remained, although the electro-dip coating in the combination described with the decorative printing leads to very considerable advantages.
- the electrodeposition coating provides a safe coating of all surfaces not yet protected against corrosion in a single operation, and possible defects in the surfaces already provided with previously applied lacquer are also protected against corrosion by appropriate deposition of the lacquer in the immersion coating.
- the deposition of the paint in the electrocoating process takes place at all points on the surface of the can body only in an extremely small layer thickness, which is also reinforced at the edges and curves with a small radius of curvature, so that due to the increased risk of corrosion there is a correspondingly improved protection by Paint application is achieved.
- the application of the base coat on the outer surface which is otherwise necessary, can be dispensed with.
- This basic lacquer application has so far been necessary because surfaces of the decorative print which are set off from one another in color cannot be printed directly next to one another, but instead have to enclose a distance between them because of the risk of the printing inks developing.
- the basic lacquer application forms the surface coating of the can body between the color fields of the decor print and at the same time complements the overall decor with its coloring.
- the decorative print insofar as it consists of separate color fields, is applied to the bare metallic outer surface and hardened, and a corrosion-preventing lacquer is applied to the can body provided with this decorative print Apply electro-dip coating and at the same time thereby supplement or complete the decorative print.
- the optical addition is possible with both pigmented and non-pigmented lacquer.
- the pigmentation of the corrosion-preventing lacquer can be carried out with color pigments that were also included in the base coat application in the conventional process.
- the areas remaining between the separate color fields of the decor print are provided with a colored varnish coating which corresponds to the base coat and thus complements or completes the decor print. Since the electrodeposition coating determines the paint dependence on the electrical conductivity between the can body and the counterelectrode and the paint layer represents an insulation resistance, it is ensured despite the sharp delimitation of the paint job by the electrodeposition coating and the decorative print that no areas remain between these two paint applications that are not adequately covered with a layer of lacquer and form areas at risk of corrosion.
- the color areas mentioned, separated from one another by the decorative printing can be pictorial representations, letters, numbers and the like.
- the individual, separated color areas can also be applied in the context of a multicolor print.
- an electrically conductive lacquer is used for the decor printing of all the colored surfaces and that the entire surface of the can body is subsequently completely coated with a clear lacquer by means of the electrocoating.
- the aforementioned method is particularly useful for the production of decorated cans, the outer surfaces of which are exposed to severe stress during the subsequent treatment. This is because the varnish applied to the decorative print creates a protective layer for this decorative print and at the same time achieves a corrosion-preventing coating on the surfaces not coated by the decorative print in a single operation.
- the aforementioned method is particularly recommended in cases where the outer surface of the can body adjacent to the decorative print even bright surfaces having b z w. the separated color fields of the decor print are separated from each other by blank areas.
- the decorative print is applied to the bare can bodies in a manner similar to the method described above, and after this decorative print has hardened, the electrocoating is carried out with a clear varnish.
- the electrical conductivity of the varnish used for the decor printing can be adjusted so that the thickness of the varnish layer that arises on the color fields of the decor printing during electrodeposition coating is kept smaller than in the other areas.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Printing Methods (AREA)
- Electroplating Methods And Accessories (AREA)
- Physical Vapour Deposition (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Adornments (AREA)
- Table Devices Or Equipment (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Dekorieren und korrosionsverhindernden Lackieren von metallischen, vorzugsweise aus verzinntem Blech hergestellten Dosenrümpfen, insbesondere bodenseitig verschlossenen Dosenrümpfen, bei dem auf die äußere Oberfläche des Dosenrumpfes zunächst ein Dekordruck aufgebracht und durch Trocknung und/oder Vernetzung gehärtet wird, ehe der Auftrag des korrosionsverhindernden Lackes erfolgt.The invention relates to a method for decorating and corrosion-preventing painting of metallic can bodies, preferably made of tin-plated sheet metal, in particular sealed can bodies on the bottom side, in which a decorative print is first applied to the outer surface of the can body and hardened by drying and / or crosslinking before the application of the corrosion-preventing paint.
Es ist bekannt, insbesondere Verpackungsdosen mit einem vorzugsweise aufgedruckten Dekor zu versehen und die Dosen auf ihrer gesamten Oberfläche mit einem korrosionsschutz zu versehen, welcher bei Verwendung der Dosen für die Verpackung von Lebensmitteln oder Getränken von ganz besonderer Bedeutung ist.It is known to provide, in particular, packaging cans with a preferably printed decor and to provide the cans with corrosion protection over their entire surface, which is of particular importance when the cans are used for packaging food or beverages.
Zum Aufbringen eines Dekors auf die äußere Umfangsfläche von Dosenrümpfen und einer die gesamte Dosenoberfläche überdeckenden Lackschicht werden bei der praktischen Ausführung die nachfolgenden Verfahrensschritte durchgeführt:
- Auftrag eines den Untergrund für das spätere Dekor bildenden Lackauftrages.
- Trocknung und/oder Vernetzung des Grundlackes.
- Aufbringen des Dekors (Druck) auf den Grundlack der Außenfläche.
- Trocknung und/oder Vernetzung des aufgedruckten Dekors.
- Bodenspritzlackierung zum Korrosionsschutz.
- Innenspritzlackierung zum Korrosionsschutz.
- Trocknung und/oder Vernetzung des Korrosionsschutzlackes.
- Application of a varnish that forms the base for the subsequent decor.
- Drying and / or crosslinking of the base coat.
- Apply the decor (print) to the base coat of the outer surface.
- Drying and / or cross-linking of the printed decor.
- Floor spray paint for corrosion protection.
- Internal spray painting for corrosion protection.
- Drying and / or cross-linking of the anti-corrosion varnish.
Bei ggf. notwendiger Zweischicht-Lackierung müssen zwei weitere Schritte, nämlich eine weitere Innenspritzlackierung und eine weitere Trocknung bzw. Vernetzung, angeschlossen werden.If a two-layer coating is necessary, two further steps, namely a further interior spray coating and a further drying or crosslinking, must be connected.
Die Vielzahl der bisher notwendigen Verfahrensschritte zum Dekorieren und korrosionsverhindernden Lackieren von metallischen Dosenrümpfen erfordert einen großen maschinellen bzw. apparativen Aufwand und für die korrosionsverhindernde Beschichtung relativ große Mengen an Lack, da beim Auftragen des Lackes Toleranzen in der Schichtdicke nicht zu vermeiden sind und die geringste Schichtdicke noch ausreichen muß, um den Korrosionsschutz zu gewährleisten. Vorgenannte Voraussetzungen gelten auch für den Grundlackauftrag auf die Außenoberfläche, soweit dieser nicht durch den Dekordruck nochmals überdeckt wird.The large number of previously necessary process steps for decorating and corrosion-preventing painting of metal can bodies requires a great deal of mechanical and apparatus expenditure and for the corrosion-preventing coating relatively large amounts of coating, since tolerances in the layer thickness cannot be avoided when applying the coating and the smallest layer thickness must still be sufficient to ensure corrosion protection. The aforementioned requirements also apply to the application of the base coat on the outer surface, provided that this is not covered again by the decorative print.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der einleitend beschriebenen Art so weiterzubilden, daß bei gleichzeitiger Verminderung der Verfahrensschritte und einer Verminderung des apparativen sowie personellen Aufwandes eine zuverlässige korrosionsverhindernde Beschichtung der gesamten Oberfläche des Dosenrumpfes bei gleichzeitiger Einsparung an Lackmaterial erreicht wird.The invention has for its object to develop a method of the type described in the introduction so that a reliable corrosion-preventing coating of the entire surface of the can body is achieved with a simultaneous reduction in the process steps and a reduction in equipment and personnel, while at the same time saving paint material.
Zur Lösung vorstehender Aufgabe kennzeichnet sich das einleitend genannte Verfahren erfindungsgemäß dadurch, daß der mit einem Dekordruck versehene Dosenrumpf zum Auftrag des kcrrosionsverhindernden Lackes einer Elektrotauchlackierung mit nachfolgender Trocknung und/oder Vernetzung des Tauchlackes ausgesetzt wird.To achieve the above object, the method mentioned in the introduction is characterized in that the can body, which is provided with a decorative print, is subjected to an electro-dip coating with subsequent drying and / or crosslinking of the dip lacquer in order to apply the anti-corrosion lacquer.
Die Elektrotauchlackierung ist zwar für die Beschichtung metallischer Hohlkörper insbesondere in der Autoindustrie bekannt und auch schon im Zusammenhang mit dem Auftrag einer Beschichtung auf Dosenrümpfe beschrieben worden (DE-OS 20 24 106). Bei diesem vorgenannten Verfahren zur Beschichtung von Dosenrümpfen ist der Auftrag des korrosionsverhindernden Lackes durch das Eintauchen der Dosenrümpfe von dreiteiligen Dosen nach der Fertigstellung der Dosenrümpfe vorgesehen, ehe die Rümpfe mit einem Boden versehen und gefüllt werden. Die Frage eines Dekoraufdruckes ist in der Vorveröffentlichung nicht angesprochen. Sollte ein solcher Dekoraufdruck vorgesehen sein, so müßte er auf die korrosionsverhindernde Lackschicht aufgebracht werden, wodurch erhebliche Schwierigkeiten entstehen würden, die insbesondere in einer Gefahr der Beschädigung der korrosionsverhindernden Lackschicht liegen, welche sich durch die mechanische Beanspruchung des Dosenrumpfes beim Druckvorgang nicht vermeiden lassen. Aus alesem Grunde ib" "-fenbar die Möglichkeit der Elektrotauchlackierung von Dosenrümpfen beim Verfahren zum Dekorieren und korrosionsverhindernden Lackieren derartiger Dosenrümpfe ohne Einfluß auf die Entwicklung des einleitend beschriebenen Verfahrens geblieben, obgleich die Elektrotauchlackierung in der beschriebenen Kombination mit dem Dekordruck zu ganz erheblichen Vorteilen führt. Zum einen wird durch die Elektrotauchlackierung in einem einzigen Arbeitsgang eine sichere Beschichtung aller noch nicht korrosionsgeschützten Flächen erreicht, wobei auch mögliche Fehlstellen der bereits mit zuvor aufgebrachtem Lack versehenen Flächen durch entsprechende Abscheidung des Lackes in der Tauchlackierung gegen Korrosionen geschützt werden. Dabei erfolgt die Abscheidung des Lackes bei der Elektrotauchlackierung an allen Stellen der Oberfläche des Dosenrumpfes nur in einer äußerst geringen Schichtdicke, die außerdem an den Kanten und Rundungen mit geringem Krümmungsradius verstärkt ist, so daß wegen der dort bestehenden erhöhten Korrosionsgefahr ein entsprechend verbesserter Schutz durch den Lackauftrag erreicht wird.Electrocoating is known for coating metallic hollow bodies, in particular in the automotive industry, and has also been described in connection with the application of a coating to can bodies (DE-OS 20 24 106). In this aforementioned method for coating can bodies, the application of the corrosion-preventing lacquer is provided by immersing the can bodies of three-part cans after the completion of the can bodies before the bodies are provided with a bottom and filled. The question of a decorative print is not addressed in the previous publication. If such a decorative print were to be provided, it would have to be applied to the corrosion-preventing lacquer layer, which would cause considerable difficulties, which are in particular a risk of damage to the corrosion-preventing lacquer layer, which cannot be avoided by the mechanical stress on the can body during the printing process. For a l esemgrund i b "" -fenbar the possibility of electrocoating can bodies in the process for decorating and corrosion-preventing painting of such can bodies without affecting the development of the The method described in the introduction has remained, although the electro-dip coating in the combination described with the decorative printing leads to very considerable advantages. On the one hand, the electrodeposition coating provides a safe coating of all surfaces not yet protected against corrosion in a single operation, and possible defects in the surfaces already provided with previously applied lacquer are also protected against corrosion by appropriate deposition of the lacquer in the immersion coating. The deposition of the paint in the electrocoating process takes place at all points on the surface of the can body only in an extremely small layer thickness, which is also reinforced at the edges and curves with a small radius of curvature, so that due to the increased risk of corrosion there is a correspondingly improved protection by Paint application is achieved.
Bei einer besonders vorteilhaften Ausgestaltung des neuen Verfahrens kann auf den sonst notwendigen Grundlackauftrag auf die Außenfläche verzichtet werden. Dieser Grundlackauftrag ist bisher erforderlich, weil farblich voneinander abgesetzte Flächen des Dekordruckes nicht unmittelbar nebeneinander aufgedruckt werden können, sondern wegen der Gefahr des Verlaufens der Druckfarben einen Abstand zwischen sich einschließen müssen. Der Grundlackauftrag bildet zwischen den Farbfeldern des Dekordruckes allein die Oberflächenbeschichtung des Dosenrumpfes und ergänzt durch seine Farbgebung gleichzeitig auch das Gesamtdekor.In a particularly advantageous embodiment of the new method, the application of the base coat on the outer surface, which is otherwise necessary, can be dispensed with. This basic lacquer application has so far been necessary because surfaces of the decorative print which are set off from one another in color cannot be printed directly next to one another, but instead have to enclose a distance between them because of the risk of the printing inks developing. The basic lacquer application forms the surface coating of the can body between the color fields of the decor print and at the same time complements the overall decor with its coloring.
Bei der vorgenannten besonders zweckmäßigen Ausgestaltung des Verfahrens ist nunmehr vorgesehen, den Dekordruck, soweit er aus voneinander getrennten Farbfeldern besteht, auf die metallisch blanke Außenoberfläche aufzubringen und zu härten und auf den mit diesem Dekordruck versehenen Dosenrumpf einen korrosionsverhindernden Lack durch Elektrotauchlackierung aufzubringen und gleichzeitig hierdurch den Dekordruck zu ergänzen bzw. zu vervollständigen. Die optische Ergänzung ist sowohl durch pigmentierten als auch durch nichtpigmentierten Lack möglich.In the above-mentioned particularly expedient embodiment of the method, it is now provided that the decorative print, insofar as it consists of separate color fields, is applied to the bare metallic outer surface and hardened, and a corrosion-preventing lacquer is applied to the can body provided with this decorative print Apply electro-dip coating and at the same time thereby supplement or complete the decorative print. The optical addition is possible with both pigmented and non-pigmented lacquer.
Die Pigmentierung des korrosionsverhindernden Lackes kann mit Farbpigmenten erfolgen, die bei dem herkömmlichen Verfahren auch in dem Grundlackauftrag enthalten waren. Auf diese Weise werden die zwischen den getrennten Farbfeldern des Dekordruckes verbleibenden Flächen mit einer farblichen Lackbeschichtung versehen, wie sie dem Grundlack entspricht und somit der Dekordruck ergänzt bzw. vervollständigt. Da durch die Elektrotauchlackierung die Lackabscheidung in Abhängigkeit von der elektrischen Leitfähigkeit zwischen dem Dosenrumpf und der Gegenelektrode bestimmt wird und die Lackschicht einen Isolationswiderstand darstellt, wird trotz einer scharfen Abgrenzung des Lackauftrages durch die Elektrotauchlackierung und des Dekordruckes sichergestellt, daß zwischen diesen beiden Lackaufträgen keine Bereiche verbleiben, die nicht hinreichend mit einer Lackschicht versehen sind und korrosionsgefährdete Stellen bilden.The pigmentation of the corrosion-preventing lacquer can be carried out with color pigments that were also included in the base coat application in the conventional process. In this way, the areas remaining between the separate color fields of the decor print are provided with a colored varnish coating which corresponds to the base coat and thus complements or completes the decor print. Since the electrodeposition coating determines the paint dependence on the electrical conductivity between the can body and the counterelectrode and the paint layer represents an insulation resistance, it is ensured despite the sharp delimitation of the paint job by the electrodeposition coating and the decorative print that no areas remain between these two paint applications that are not adequately covered with a layer of lacquer and form areas at risk of corrosion.
Die genannten, durch den Dekordruck voneinander getrennten Farbflächen können bildliche Darstellungen, Buchstaben, Zahlenangaben und dgl. sein, wobei die einzelnen getrennten Farbflächen auch im Rahmen eines Mehrfarbendrukkes aufgebracht sein können.The color areas mentioned, separated from one another by the decorative printing, can be pictorial representations, letters, numbers and the like. The individual, separated color areas can also be applied in the context of a multicolor print.
Das vorgenannte Verfahren hat gegenüber dem einleitend beschriebenen bekannten Verfahren den großen Vorteil, daß nur insgesamt vier Verfahrensschritte erforderlich sind, nämlich das Aufdrucken der getrennten Farbflächen und das nachfolgende Aushärten dieses Dekordruckes sowie die Elektrotauchlackierung mit der nachfolgenden Aushärtung des aufgebrachten Tauchlackes.The above-mentioned process has the great advantage over the known process described in the introduction that only a total of four process steps are required, namely the printing on of the separated colored areas and the subsequent curing of this decorative print, and the electrocoating with the subsequent curing of the applied dip coating.
Bei einer anderen Variante des neuen Verfahrens ist vorgesehen, daß für den Dekordruck aller farblich gestalteten Flächen ein elektrischleitender Lack verwendet und die gesamte Dosenrumpfoberfläche nachfolgend mit einem Klarlack durch die Elektrotauchlackierung vollständig beschichtet wird.In another variant of the new method, it is provided that an electrically conductive lacquer is used for the decor printing of all the colored surfaces and that the entire surface of the can body is subsequently completely coated with a clear lacquer by means of the electrocoating.
Das vorgenannte Verfahren ist besonders zweckmäßig für die Herstellung dekorierter Dosen, deren Außenoberflächen bei der späteren Behandlung einer starken Belastung ausgesetzt sind. Es wird nämlich durch den Lackauftrag auf den Dekordruck eine Schutzschicht für diesen Dekordruck geschaffen und dabei in einem einzigen Arbeitsgang gleichzeitig eine korrosionsverhindernde Beschichtung der nicht von dem Dekordruck beschichteten Flächen erreicht.The aforementioned method is particularly useful for the production of decorated cans, the outer surfaces of which are exposed to severe stress during the subsequent treatment. This is because the varnish applied to the decorative print creates a protective layer for this decorative print and at the same time achieves a corrosion-preventing coating on the surfaces not coated by the decorative print in a single operation.
Das vorgenannte Verfahren empfiehlt sich besonders in denjenigen Fällen, in denen die Außenoberfläche des Dosenrumpfes neben dem Dekordruck auch noch blanke Flächen aufweise bzw. die voneinander getrennten Farbfelder des Dekordruckes durch blanke Flächenbereiche voneinander getrennt sind. Bei dieser Ausgestaltung der Dosenrümpfe wird ähnlich wie bei dem zuvor beschriebenen Verfahren auf die blanken Dosenrümpfe der Dekordruck aufgebracht und nach dem Härten dieses Dekordruckes die Elektrotauchlackierung mit einem Klarlack vorgenommen.The aforementioned method is particularly recommended in cases where the outer surface of the can body adjacent to the decorative print even bright surfaces having b z w. the separated color fields of the decor print are separated from each other by blank areas. In this embodiment of the can bodies, the decorative print is applied to the bare can bodies in a manner similar to the method described above, and after this decorative print has hardened, the electrocoating is carried out with a clear varnish.
Dabei kann ggf. die elektrische Leitfähigkeit des für den Dekordruck verwendeten Lackes so eingestellt werden, daß die auf den Farbfeldern des Dekordruckes bei der Elektrotauchlackierung entstehende Lackschicht in ihrer Dicke geringer gehalten wird als in den übrigen Bereichen.If necessary, the electrical conductivity of the varnish used for the decor printing can be adjusted so that the thickness of the varnish layer that arises on the color fields of the decor printing during electrodeposition coating is kept smaller than in the other areas.
Durch die Folge der Aufbringung des Dekordruckes und die nachfolgende Elektrotauchlackierung wird bei allen Varianten des beschriebenen Verfahrens ein sicherer und vollflächiger Korrosionsschutz mit einer gegenüber dem Bekannten wesentlich geringeren Anzahl von Verfahrensschritten sowie gleichzeitiger Verminderung des Bedarfs an Beschichtungsmaterial erreicht.As a result of the application of the decorative print and the subsequent electrodeposition coating, all variants of the process described provide a reliable and full-surface corrosion protection with one that is familiar to the user ten significantly lower number of process steps and a simultaneous reduction in the need for coating material.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT85107862T ATE40802T1 (en) | 1984-07-11 | 1985-06-25 | PROCESS FOR DECORATING AND ANTI-CORROSION COATING METALLIC CAN BODY. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3425435 | 1984-07-11 | ||
| DE19843425435 DE3425435A1 (en) | 1984-07-11 | 1984-07-11 | METHOD FOR DECORATING AND CORROSION-PREVENTING LACQUERING OF METALLIC CAN HULLS |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0167923A2 true EP0167923A2 (en) | 1986-01-15 |
| EP0167923A3 EP0167923A3 (en) | 1986-09-03 |
| EP0167923B1 EP0167923B1 (en) | 1989-02-15 |
Family
ID=6240305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85107862A Expired EP0167923B1 (en) | 1984-07-11 | 1985-06-25 | Process for applying a decoration and an anticorrosive lacquer to metallic can bodies |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4693801A (en) |
| EP (1) | EP0167923B1 (en) |
| AT (1) | ATE40802T1 (en) |
| CA (1) | CA1270792A (en) |
| DD (1) | DD235426A5 (en) |
| DE (2) | DE3425435A1 (en) |
| DK (1) | DK165393C (en) |
| ES (1) | ES8607064A1 (en) |
| GR (1) | GR851698B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5858098A (en) * | 1997-01-10 | 1999-01-12 | Eagle-Picher Industries, Inc. | Immersion can coating apparatus and method |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0010256D0 (en) * | 2000-04-28 | 2000-06-14 | Crown Cork & Seal Tech Corp | Can end |
| US7943028B2 (en) * | 2004-08-13 | 2011-05-17 | Ppg Industries Ohio, Inc. | Method for coating objects |
| US7947160B2 (en) * | 2004-08-13 | 2011-05-24 | Ppg Industries Ohio, Inc. | System for coating objects |
| US20060051511A1 (en) * | 2004-08-13 | 2006-03-09 | Orosz Gary R | Apparatus and systems for coating objects |
| US20060032730A1 (en) * | 2004-08-13 | 2006-02-16 | Kaufman Paul J | Belt conveyor apparatus |
| DE102006016477A1 (en) * | 2006-04-07 | 2007-10-11 | GM Global Technology Operations, Inc., Detroit | Cataphoretic dip painting on bodies and components with improved wraparound behavior |
| DE102008059014A1 (en) * | 2008-05-28 | 2009-12-03 | Basf Coatings Ag | Process for coating metal strips |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1947983A1 (en) * | 1969-03-03 | 1970-09-24 | Continental Can Co | A method of treating a metal object having a surface coating |
| DE2024106A1 (en) * | 1969-06-02 | 1970-12-10 | Continental Can Company Inc., New York, N.Y. (V.St.A.) | Device for the electrical application of a coating to can bodies |
| DE2726732A1 (en) * | 1977-06-14 | 1979-01-04 | Vogelsang K Gmbh | PROCEDURE FOR DOUBLE PAINTING OF WORKPIECES AND PAINTING SYSTEM FOR PERFORMING THE PROCESS |
| US4139656A (en) * | 1975-07-23 | 1979-02-13 | Metal Box Limited | Printing and coating method |
| GB1558464A (en) * | 1975-07-29 | 1980-01-03 | Metal Box Co Ltd | Method and apparatus for providing flame cured coatings |
| EP0033140A1 (en) * | 1980-01-29 | 1981-08-05 | Hoechst Aktiengesellschaft | Process for producing a surface coating of a hardenable multicomponent system |
| DE3314776A1 (en) * | 1983-04-23 | 1984-10-25 | Herberts Gmbh, 5600 Wuppertal | Process for preparing multicoloured decorative coatings |
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|---|---|---|---|---|
| DE33140C (en) * | E. CARENOU in Paris, 9 Rue de Ciapeyron | Alarm device for railroad car doors | ||
| SE322877B (en) * | 1968-09-25 | 1970-04-20 | Elektro Gennel Ab | |
| GB1554866A (en) * | 1975-07-23 | 1979-10-31 | Metal Box Co Ltd | Printing and coating hollow articles |
| JPS60432B2 (en) * | 1978-03-27 | 1985-01-08 | 凸版印刷株式会社 | Partially colored metal decorative board |
| US4094760A (en) * | 1977-07-25 | 1978-06-13 | Aluminum Company Of America | Method and apparatus for differentially and simultaneously electrocoating the interior and exterior of a metal container |
| US4210507A (en) * | 1978-09-18 | 1980-07-01 | Aluminum Company Of America | Electrocoating flow control electrode and method |
| US4246088A (en) * | 1979-01-24 | 1981-01-20 | Metal Box Limited | Method and apparatus for electrolytic treatment of containers |
| US4400251A (en) * | 1981-06-05 | 1983-08-23 | Aluminum Company Of America | Method and apparatus for simultaneously electrocoating the interior and exterior of a metal container |
| DE3374726D1 (en) * | 1982-12-22 | 1988-01-07 | Seiko Instr Inc | Method for manufacturing a multicolour filter and a multicolour display device |
| DE3325068A1 (en) * | 1983-07-12 | 1985-01-24 | Herberts Gmbh, 5600 Wuppertal | METHOD FOR COATING SINGLE-SIDED OPEN HOLLOW BODIES |
-
1984
- 1984-07-11 DE DE19843425435 patent/DE3425435A1/en active Granted
-
1985
- 1985-06-25 EP EP85107862A patent/EP0167923B1/en not_active Expired
- 1985-06-25 DE DE8585107862T patent/DE3568261D1/en not_active Expired
- 1985-06-25 AT AT85107862T patent/ATE40802T1/en not_active IP Right Cessation
- 1985-06-28 CA CA000485992A patent/CA1270792A/en not_active Expired - Lifetime
- 1985-07-09 GR GR851698A patent/GR851698B/el unknown
- 1985-07-09 US US06/753,317 patent/US4693801A/en not_active Expired - Lifetime
- 1985-07-09 DD DD85278413A patent/DD235426A5/en not_active IP Right Cessation
- 1985-07-10 DK DK315185A patent/DK165393C/en not_active IP Right Cessation
- 1985-07-11 ES ES545074A patent/ES8607064A1/en not_active Expired
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1947983A1 (en) * | 1969-03-03 | 1970-09-24 | Continental Can Co | A method of treating a metal object having a surface coating |
| DE2024106A1 (en) * | 1969-06-02 | 1970-12-10 | Continental Can Company Inc., New York, N.Y. (V.St.A.) | Device for the electrical application of a coating to can bodies |
| US4139656A (en) * | 1975-07-23 | 1979-02-13 | Metal Box Limited | Printing and coating method |
| GB1558464A (en) * | 1975-07-29 | 1980-01-03 | Metal Box Co Ltd | Method and apparatus for providing flame cured coatings |
| DE2726732A1 (en) * | 1977-06-14 | 1979-01-04 | Vogelsang K Gmbh | PROCEDURE FOR DOUBLE PAINTING OF WORKPIECES AND PAINTING SYSTEM FOR PERFORMING THE PROCESS |
| EP0033140A1 (en) * | 1980-01-29 | 1981-08-05 | Hoechst Aktiengesellschaft | Process for producing a surface coating of a hardenable multicomponent system |
| DE3314776A1 (en) * | 1983-04-23 | 1984-10-25 | Herberts Gmbh, 5600 Wuppertal | Process for preparing multicoloured decorative coatings |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5858098A (en) * | 1997-01-10 | 1999-01-12 | Eagle-Picher Industries, Inc. | Immersion can coating apparatus and method |
Also Published As
| Publication number | Publication date |
|---|---|
| DK315185A (en) | 1986-01-12 |
| DK165393C (en) | 1993-04-13 |
| DD235426A5 (en) | 1986-05-07 |
| CA1270792A (en) | 1990-06-26 |
| ES545074A0 (en) | 1986-06-01 |
| ES8607064A1 (en) | 1986-06-01 |
| EP0167923B1 (en) | 1989-02-15 |
| DE3425435C2 (en) | 1987-05-21 |
| ATE40802T1 (en) | 1989-03-15 |
| EP0167923A3 (en) | 1986-09-03 |
| DE3425435A1 (en) | 1986-01-23 |
| US4693801A (en) | 1987-09-15 |
| DE3568261D1 (en) | 1989-03-23 |
| DK315185D0 (en) | 1985-07-10 |
| GR851698B (en) | 1985-11-26 |
| DK165393B (en) | 1992-11-23 |
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