EP0418725B1 - Process to make a container - Google Patents
Process to make a container Download PDFInfo
- Publication number
- EP0418725B1 EP0418725B1 EP90117605A EP90117605A EP0418725B1 EP 0418725 B1 EP0418725 B1 EP 0418725B1 EP 90117605 A EP90117605 A EP 90117605A EP 90117605 A EP90117605 A EP 90117605A EP 0418725 B1 EP0418725 B1 EP 0418725B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- coating
- primer
- lacquer
- exposed
- 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.)
- Expired - Lifetime
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
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/542—No clear coat specified the two 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
- B05D7/22—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 internal surfaces, e.g. of tubes
- B05D7/227—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 internal surfaces, e.g. of tubes of containers, cans or the like
Definitions
- the invention relates to a method for producing a container, such as a can or tube, for receiving a filling material, the interior of which is primed after the container has been produced.
- JP-A 58 101 049 deals with the basic coating of metal goods. It is mentioned there that a polyolefin-coated metal product is produced by providing a metal surface with a primer and coating it with polyolefin after the primer has been stoved. After baking and drying, the primer has a thickness of 10 to 100 ⁇ m. This method is not readily applicable to containers.
- cans have been produced by pressing, deep-drawing or the like. This is followed by trimming and washing, followed by drying. An internal protective lacquer is then usually sprayed on, in a thickness of approximately 6-8 ⁇ m, which in turn is dried.
- An internal protective lacquer is then usually sprayed on, in a thickness of approximately 6-8 ⁇ m, which in turn is dried.
- the disadvantage is that such cans or tubes are not resistant to aggressive contents.
- the inventor set himself the goal of using a method of the above. To develop a way in which a container is created which has this resistance to aggressive filling goods and in which, if necessary, existing seams are sealed.
- a coating of polyolefin or a mixture of polyolefins, polyethylene or other plastics is applied to the primer in a layer thickness of 30 to 70 ⁇ m and the container is then exposed to a heat of preferably 160 to 190 ° C. in a drying oven, and is then actively cooled to preferably 40 to 50 ° C.
- This relatively strong coating is particularly suitable for containers for holding aggressive filling goods. These containers can be tubes or aluminum cans. Furthermore, the coating is also suitable for tin cans, since it is usually sealed by the coating in the case of tin cans. However, the coating is also suitable for plastic cans.
- the primer generally has a layer thickness of 20 to 30 ⁇ m, so that the layer thickness of the primer and coating is approximately 50-100 ⁇ m.
- the coating for example, polyolefins or similar substances as well as mixtures of polyolefins and their substances are suitable. This has the major advantage that polyolefins burn when the container is recycled without polluting the environment.
- the coating can also consist of a polyethylene or other plastics. There should be no limit to the inventive idea here.
- the container is then placed in a drying oven and exposed to a heat of 160-190 ° C. Thereafter, the container is preferably cooled to 40-50 ° C.
- the outside of the container is treated by applying a special one-component base coat that can be applied at low temperatures when drying to avoid damaging the inside coating. Then a top coat is applied.
- Such a coating according to the invention is also suitable for a valve cover that is to be placed on a can later. It is mainly used for aerosol cans.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Catching Or Destruction (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Making Paper Articles (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Peptides Or Proteins (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Herstellen eines Behälters, wie beispielsweise einer Dose oder Tube, zur Aufnahme eines Füllgutes, wobei nach dem Herstellen des Behälters dessen Inneres geprimert wird.The invention relates to a method for producing a container, such as a can or tube, for receiving a filling material, the interior of which is primed after the container has been produced.
Die JP-A 58 101 049 befaßt sich mit der grundsätzlichen Beschichtung von Metallwaren. Dort ist erwähnt, daß eine polyolefinbeschichtete Metallware dadurch hergestellt wird, daß eine Metalloberfläche mit einem Primer versehen und nach einem Einbrennen des Primers mit Polyolefin beschichtet wird. Der Primer hat dabei nach dem Einbrennen und Trocknen eine Dicke von 10 bis 100 um. Dieses Verfahren ist nicht ohne weiteres auf Behälter anwendbar.JP-A 58 101 049 deals with the basic coating of metal goods. It is mentioned there that a polyolefin-coated metal product is produced by providing a metal surface with a primer and coating it with polyolefin after the primer has been stoved. After baking and drying, the primer has a thickness of 10 to 100 µm. This method is not readily applicable to containers.
Bislang werden beispielsweise Dosen durch Pressen, Tiefziehen od. dgl. hergestellt. Darauf erfolgt ein Beschneiden und ein Waschen mit anschließendem Trocknen. Üblicherweise wird danach ein Innenschutzlack aufgespritzt, und zwar in einer Dicke von etwa 6-8 um, der wiederum getrocknet wird. Der Nachteil liegt darin, daß derartige Dosen oder Tuben nicht beständig gegen aggressive Füllgüter sind.So far, for example, cans have been produced by pressing, deep-drawing or the like. This is followed by trimming and washing, followed by drying. An internal protective lacquer is then usually sprayed on, in a thickness of approximately 6-8 μm, which in turn is dried. The disadvantage is that such cans or tubes are not resistant to aggressive contents.
Der Erfinder hat sich zum Ziel gesetzt, ein Verfahren der o.g. Art zu entwickeln, bei welchem ein Behälter geschaffen wird, der diese Beständigkeit gegen aggressive Füllgüter aufweist und bei dem zudem ggfs. vorhandene Nahtstellen abgedichtet werden.The inventor set himself the goal of using a method of the above. To develop a way in which a container is created which has this resistance to aggressive filling goods and in which, if necessary, existing seams are sealed.
Zur Lösung dieser Aufgabe führt, daß auf den Primer eine Beschichtung aus Polyolefin oder ein Gemisch von Polyolefinen, Polyethylen oder anderen Kunststoffen in einer Schichtstärke von 30 bis 70 um aufgetragen und anschließend der Behälter einer Wärme von bevorzugt 160 bis 190 C eines Trockenofens ausgesetzt, sowie anschließend aktiv auf bevorzugt 40 bis 50 ° C abgekühlt wird.To achieve this object, a coating of polyolefin or a mixture of polyolefins, polyethylene or other plastics is applied to the primer in a layer thickness of 30 to 70 μm and the container is then exposed to a heat of preferably 160 to 190 ° C. in a drying oven, and is then actively cooled to preferably 40 to 50 ° C.
Diese relativ starke Beschichtung bietet sich vor allem für Behälter zur Aufnahme von aggressiven Füllgütern an. Diese Behälter können Tuben oder aber Aluminiumdosen sein. Des weiteren ist die Beschichtung auch für Weißblechdosen geeignet, da sie in der Regel bei Weißblechdosen vorhandene Naht durch die Beschichtung versiegelt wird. Ebenso gut ist die Beschichtung aber auch für Kunststoffdosen geeignet.This relatively strong coating is particularly suitable for containers for holding aggressive filling goods. These containers can be tubes or aluminum cans. Furthermore, the coating is also suitable for tin cans, since it is usually sealed by the coating in the case of tin cans. However, the coating is also suitable for plastic cans.
Der Primer besitzt im übrigen in der Regel eine Schichtdicke von 20 bis 30 um, so daß insgesamt eine Schichtstärke von Primer und Beschichtung von ca. 50-100 um gegeben ist.The primer generally has a layer thickness of 20 to 30 μm, so that the layer thickness of the primer and coating is approximately 50-100 μm.
Für die Beschichtung bieten sich beispielsweise Polyolefine od. dgl. Stoffe sowie Gemische aus Polyolefinen und deren Stoffen an. Dies hat den wesentlichen Vorteil, daß Polyolefine beim Recyclieren des Behälters verbrennen, ohne die Umwelt zu belasten. Jedoch kann die Beschichtung auch aus einem Polyäthylen oder anderen Kunststoffen bestehen. Hier soll dem erfinderischen Gedanken keine Grenze gesetzt sein.For the coating, for example, polyolefins or similar substances as well as mixtures of polyolefins and their substances are suitable. This has the major advantage that polyolefins burn when the container is recycled without polluting the environment. However, the coating can also consist of a polyethylene or other plastics. There should be no limit to the inventive idea here.
Anschließend wird der Behälter in einen Trokkenofen gegeben und einer Wärme von 160-190°C ausgesetzt. Danach erfolgt bevorzugt ein Abkühlen des Behälters auf 40-50 ° C.The container is then placed in a drying oven and exposed to a heat of 160-190 ° C. Thereafter, the container is preferably cooled to 40-50 ° C.
Die Außenbehandlung des Behälters geschieht durch ein Aufbringen eines speziellen Einkomponenten-Grundlackes, der beim Trocknen mit niedrigen Temperaturen gefahren werden kann, um eine Beschädigung der Innenbeschichtung zu vermeiden. Danach wird ein Überzuglack aufgetragen.The outside of the container is treated by applying a special one-component base coat that can be applied at low temperatures when drying to avoid damaging the inside coating. Then a top coat is applied.
Eine solche erfindungsgemäße Beschichtung ist im übrigen auch für einen später auf eine Dose aufzusetzenden Ventildeckel geeignet. Sie findet vor allem bei Aerosoldosen Anwendung.Such a coating according to the invention is also suitable for a valve cover that is to be placed on a can later. It is mainly used for aerosol cans.
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3931623 | 1989-09-22 | ||
DE3931623A DE3931623A1 (en) | 1989-09-22 | 1989-09-22 | METHOD FOR PRODUCING A CONTAINER |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0418725A2 EP0418725A2 (en) | 1991-03-27 |
EP0418725A3 EP0418725A3 (en) | 1991-09-25 |
EP0418725B1 true EP0418725B1 (en) | 1994-12-21 |
EP0418725B2 EP0418725B2 (en) | 1997-10-01 |
Family
ID=6389956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90117605A Expired - Lifetime EP0418725B2 (en) | 1989-09-22 | 1990-09-13 | Process to make a container |
Country Status (13)
Country | Link |
---|---|
US (1) | US5686140A (en) |
EP (1) | EP0418725B2 (en) |
JP (1) | JPH03123678A (en) |
AT (1) | ATE115895T1 (en) |
CA (1) | CA2025919A1 (en) |
DE (2) | DE3931623A1 (en) |
DK (1) | DK0418725T3 (en) |
ES (1) | ES2066071T5 (en) |
FI (1) | FI904151A0 (en) |
GR (1) | GR3025444T3 (en) |
LT (1) | LT3857B (en) |
LV (1) | LV11158B (en) |
RU (1) | RU2072904C1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19632191A1 (en) * | 1996-08-09 | 1998-02-12 | Audi Ag | Process for the production of a multi-layer coating |
US6806381B2 (en) * | 2001-11-02 | 2004-10-19 | Bristol-Myers Squibb Company | Process for the preparation of aniline-derived thyroid receptor ligands |
CA2751326C (en) | 2009-02-24 | 2018-03-27 | Akzo Nobel Coatings International B.V. | Latex emulsions and coating compositions formed from latex emulsions |
US9394456B2 (en) | 2009-02-24 | 2016-07-19 | Akzo Nobel Coatings International B.V. | Latex emulsions and coating compositions formed from latex emulsions |
MX2011009154A (en) | 2009-03-05 | 2011-10-10 | Akzo Nobel Coatings Int Bv | Hydroxyl functional oil polyols and coating compositions prepared from hydroxyl functional oil polyols. |
MY167433A (en) | 2010-12-28 | 2018-08-28 | Akzo Nobel Coatings Int Bv | Coating compositions comprising latex emulsions and hydroxyl functional oil polyol graft copolymers |
MX367933B (en) | 2011-12-21 | 2019-09-12 | Akzo Nobel Coatings Int Bv | Solvent-based coating compositions. |
WO2013092539A1 (en) | 2011-12-21 | 2013-06-27 | Akzo Nobel Coatings International B.V. | Water-based coating compositions |
US11059989B2 (en) | 2017-06-30 | 2021-07-13 | Valspar Sourcing, Inc. | Crosslinked coating compositions for packaging articles such as food and beverage containers |
US11981822B2 (en) | 2014-12-24 | 2024-05-14 | Swimc Llc | Crosslinked coating compositions for packaging articles such as food and beverage containers |
HUE050566T2 (en) | 2014-12-24 | 2020-12-28 | Swimc Llc | Coating compositions for packaging articles such as food and beverage containers |
CA2970632A1 (en) | 2014-12-24 | 2016-06-30 | Valspar Sourcing, Inc. | Styrene-free coating compositions for packaging articles such as food and beverage containers |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR478785A (en) * | 1914-05-23 | 1916-01-07 | Gerardo Sobrevila | Process for preventing the loss of liquid, aroma, etc., from containers, as well as the penetration of air into the interior of objects made of tin or any other material |
US2902001A (en) * | 1954-05-17 | 1959-09-01 | Nat Can Corp | Apparatus for coating the inside of flanges of can bodies |
DE2126598C3 (en) * | 1971-05-28 | 1980-04-03 | Fried. Krupp Gmbh, 4300 Essen | Process for drying painted or printed metal cans |
US4172912A (en) * | 1973-06-15 | 1979-10-30 | Sumitomo Metal Industries Limited | Process for adhering polyethylene to steel substrates |
US3952698A (en) * | 1973-09-27 | 1976-04-27 | Kaiser Aluminum & Chemical Corporation | Can treating system |
US4199622A (en) * | 1975-06-20 | 1980-04-22 | Toyo Ink Manufacturing Co., Ltd. | Coating compositions for use in coating can insides and a method for applying the same |
DE2725918B1 (en) * | 1977-06-08 | 1978-09-07 | Ketels Tuben Vertriebs Gmbh | Process for the production of conical aluminum tubes with interior painting and exterior decoration |
US4254165A (en) * | 1977-11-30 | 1981-03-03 | American Cast Iron Pipe Company | Method of forming a filled polymer coating on an internal cylindrical surface and article produced thereby |
JPS58101049A (en) * | 1981-12-10 | 1983-06-16 | 積水化学工業株式会社 | Polyolefin coated metallic product |
JPS60202769A (en) * | 1984-03-27 | 1985-10-14 | Dainippon Ink & Chem Inc | Formation of thick coated film |
-
1989
- 1989-09-22 DE DE3931623A patent/DE3931623A1/en not_active Withdrawn
-
1990
- 1990-08-22 FI FI904151A patent/FI904151A0/en not_active IP Right Cessation
- 1990-09-13 ES ES90117605T patent/ES2066071T5/en not_active Expired - Lifetime
- 1990-09-13 DE DE59008068T patent/DE59008068D1/en not_active Expired - Fee Related
- 1990-09-13 AT AT90117605T patent/ATE115895T1/en active
- 1990-09-13 EP EP90117605A patent/EP0418725B2/en not_active Expired - Lifetime
- 1990-09-13 DK DK90117605.7T patent/DK0418725T3/en active
- 1990-09-21 JP JP2250476A patent/JPH03123678A/en active Pending
- 1990-09-21 RU SU904831089A patent/RU2072904C1/en active
- 1990-09-21 CA CA002025919A patent/CA2025919A1/en not_active Abandoned
- 1990-09-21 US US07/585,913 patent/US5686140A/en not_active Expired - Fee Related
-
1993
- 1993-11-15 LV LVP-93-1222A patent/LV11158B/en unknown
- 1993-12-08 LT LTIP1568A patent/LT3857B/en unknown
-
1997
- 1997-11-19 GR GR970403089T patent/GR3025444T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
JPH03123678A (en) | 1991-05-27 |
EP0418725A2 (en) | 1991-03-27 |
LV11158B (en) | 1996-06-20 |
ES2066071T3 (en) | 1995-03-01 |
LT3857B (en) | 1996-04-25 |
GR3025444T3 (en) | 1998-02-27 |
ATE115895T1 (en) | 1995-01-15 |
LV11158A (en) | 1996-04-20 |
RU2072904C1 (en) | 1997-02-10 |
DE59008068D1 (en) | 1995-02-02 |
US5686140A (en) | 1997-11-11 |
CA2025919A1 (en) | 1991-03-23 |
FI904151A0 (en) | 1990-08-22 |
EP0418725A3 (en) | 1991-09-25 |
DK0418725T3 (en) | 1995-02-20 |
ES2066071T5 (en) | 1997-12-16 |
DE3931623A1 (en) | 1991-04-04 |
EP0418725B2 (en) | 1997-10-01 |
LTIP1568A (en) | 1995-08-25 |
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