EP0317865A2 - Method for producing protected metal bases for aerosol valves and the like - Google Patents
Method for producing protected metal bases for aerosol valves and the like Download PDFInfo
- Publication number
- EP0317865A2 EP0317865A2 EP88118963A EP88118963A EP0317865A2 EP 0317865 A2 EP0317865 A2 EP 0317865A2 EP 88118963 A EP88118963 A EP 88118963A EP 88118963 A EP88118963 A EP 88118963A EP 0317865 A2 EP0317865 A2 EP 0317865A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- base
- plastics material
- coating
- bases
- metal
- 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.)
- Withdrawn
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/38—Details of the container body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1043—Sealing or attachment arrangements between pump and container
- B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
- B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
-
- 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
- This invention relates to a method for producing metal bases for delivery devices such as aerosol valves, metering pumps and/or atomizers and the like, where said bases are used to fix said devices onto the aperture of a metal can or other vessel which is to contain the product or products to be delivered.
- the invention also relates to the metal base produced.
- the bases in question are produced by pressing steel or aluminium alloy sheet.
- the steel sheet can be tin-, chromium- or nickel-plated to protect it form oxidation.
- the sheet is varnished with a protective varnish, for example epoxide-bases.
- the main object of the present invention is therefore to provide a method for producing a base which not only obviates the aforesaid drawback but also enables the seal between the base and the vessel on which it is fixed to be made without the need to use the conventional gasket.
- a further object of the present invention is to provide a method which enables bases to be produced in two colours, thus satisfying certain commercial requirements.
- the reference numeral 1 indicates an aerosol container comprising a preferably metal can or vessel 2 for containing the product or products to be delivered plus the propellant.
- the can 2 upperly comprises a wide aperture flanged at its edge 3.
- a base 4 which supports the delivery valve 5 in conventional manner is fixed onto this aperture by clinching along its edge.
- This valve is also conventional and can be different from that shown, which in this case comprises a delivery button 6, a valving element 7 on which the button is mounted, a gasket 10, a compression spring 8 acting on the valving element, and a member 9 which retains the entire assembly and on which there is fixed a dip tube 11 through which the product is withdrawn from the bottom of the container 2.
- the base 4 ( Figures 2 and 3) is formed by conventional methods (pressing) from untreated steel or aluminium alloy sheet.
- untreated as used in the text and in the accompanying claims signifies that no layer or coating of plastics material exists on the starting sheet.
- the steel sheet can however be tin-, chromium- or nickel-plated.
- the base is hot-coated with a layer of plastics material, preferably polyethylene or polypropylene, by immersion or spraying, or in a fluidized-bed, or by other conventional methods.
- plastics material preferably polyethylene or polypropylene
- the polyethylene can be dissolved (if necessary with heat) in an organic solvent such as cycloaliphatic or aromatic hydrocarbons, and sprayed on the preferably hot base by usual spray guns, or alternatively the base can be immersed in such a solution.
- the known fluidized-bed method can also be used to coat the base. Hot polythene in the liquid state can also be sprayed onto the base or the base can be immersed in a polyethylene bath.
- the spraying method enables different plastics materials, for example in terms of their colour, to be applied to the base.
- plastics materials for example in terms of their colour
- this accumulation constitutes an effective seal element when the base is fixed to the vessel 2.
- Such an accumulation can be obtained during spraying by accentuating the application in the appropriate points.
- the spraying method is also suitable for applying two different materials, one on the inner surface and the other on the outer surface.
- the two materials can be different in terms of physical properties. For example a more elastic material can be applied to the inner side A and a different colour material can be applied to the outer side B.
- Figure 3 The base 4 of this figure is hot-sprayed at points C and D with elastic, chemically resistant plastics material able to provide good sealing on fitting to the vessel. At the points E, coloured protective plastics material is hot-sprayed.
- the invention also enables the coating to be obtained at the punch-cut points of regions Z, so that in contrast to known bases, the base of the invention is effectively protected in these regions against oxidation.
- the invention is not limited to the described embodiments, and covers all modification within the same inventive scope.
- the coating can also be only partial and be applied only to those regions which it is required to protect.
Abstract
According to the method, after the metal base for the aerosol valve or the like has been formed by conventional methods from sheet metal, a layer of protective plastics material such as polyethylene or polypropylene is applied to at least one of its sides. This application can be done by known methods such as spraying or immersion.
The metal base can be formed from unprotected steel which is tin-, nickel- or chromium-plated, or from varnished aluminium alloy.
The plastics material is preferably applied differentially to obtain selectively different layers on the metal base, for example a greater thickness on the inside of its rim, this being the region where the base is clinched or otherwise fixed to the container.
Description
- This invention relates to a method for producing metal bases for delivery devices such as aerosol valves, metering pumps and/or atomizers and the like, where said bases are used to fix said devices onto the aperture of a metal can or other vessel which is to contain the product or products to be delivered.
- The invention also relates to the metal base produced.
- The bases in question are produced by pressing steel or aluminium alloy sheet. The steel sheet can be tin-, chromium- or nickel-plated to protect it form oxidation. In the case of aluminium alloy, the sheet is varnished with a protective varnish, for example epoxide-bases.
- Recently, tinned steel sheets coated on one side with a layer of polyethylene have been also used.
- In no case is the base obtained from such sheets protected against oxidation and chemical attack at its punched edges, this representing a serious drawback.
- The main object of the present invention is therefore to provide a method for producing a base which not only obviates the aforesaid drawback but also enables the seal between the base and the vessel on which it is fixed to be made without the need to use the conventional gasket.
- A further object of the present invention is to provide a method which enables bases to be produced in two colours, thus satisfying certain commercial requirements.
- These and further objects which will be apparent from the detailed description given hereinafter are attained according to the invention by a method characterised essentially in that after the base has been formed from sheet metal which is untreated in the sense that it has no plastics coating, it is at least partly coated with plastics material such as polyethylene, polypropylene or the like, for example by spraying or immersion or fluidized-bed application.
- The invention will be more apparent from the detailed description of a preferred embodiment thereof given hereinafter by way of non-limiting example with reference to the accompanying drawing in which:
- Figure 1 is a diagrammatic axial section through an aerosol vessel provided with the base of the invention;
- Figure 2 is an inverted diametrical section through the base of the invention;
- Figure 3 is a view similar to Figure 2 showing a base provided with two different types of coating.
- In Figure 1 the
reference numeral 1 indicates an aerosol container comprising a preferably metal can orvessel 2 for containing the product or products to be delivered plus the propellant. Thecan 2 upperly comprises a wide aperture flanged at itsedge 3. Abase 4 which supports thedelivery valve 5 in conventional manner is fixed onto this aperture by clinching along its edge. This valve is also conventional and can be different from that shown, which in this case comprises adelivery button 6, a valving element 7 on which the button is mounted, agasket 10, a compression spring 8 acting on the valving element, and a member 9 which retains the entire assembly and on which there is fixed adip tube 11 through which the product is withdrawn from the bottom of thecontainer 2. - According to the invention, the base 4 (Figures 2 and 3) is formed by conventional methods (pressing) from untreated steel or aluminium alloy sheet. The term "untreated" as used in the text and in the accompanying claims signifies that no layer or coating of plastics material exists on the starting sheet. The steel sheet can however be tin-, chromium- or nickel-plated.
- After it has been formed, the base is hot-coated with a layer of plastics material, preferably polyethylene or polypropylene, by immersion or spraying, or in a fluidized-bed, or by other conventional methods. In particular, although this does not constitute a limitation to the invention, the polyethylene can be dissolved (if necessary with heat) in an organic solvent such as cycloaliphatic or aromatic hydrocarbons, and sprayed on the preferably hot base by usual spray guns, or alternatively the base can be immersed in such a solution. The known fluidized-bed method can also be used to coat the base. Hot polythene in the liquid state can also be sprayed onto the base or the base can be immersed in a polyethylene bath. It is in any event clear that the spraying method enables different plastics materials, for example in terms of their colour, to be applied to the base. In addition, using this known method it is possible to apply a thicker coating to given regions of the base than to other regions. This thickness difference can however also be obtained by immersion.
- In this case after the base has been immersed and allowed to drip, it is maintained in its inverted position as shown in Figures 2 and 3. The applied material thus accumulates in the
clinching groove 13 in the base. - After drying, this accumulation constitutes an effective seal element when the base is fixed to the
vessel 2. Such an accumulation can be obtained during spraying by accentuating the application in the appropriate points. The spraying method is also suitable for applying two different materials, one on the inner surface and the other on the outer surface. The two materials can be different in terms of physical properties. For example a more elastic material can be applied to the inner side A and a different colour material can be applied to the outer side B. One example of this is shown in Figure 3. Thebase 4 of this figure is hot-sprayed at points C and D with elastic, chemically resistant plastics material able to provide good sealing on fitting to the vessel. At the points E, coloured protective plastics material is hot-sprayed. - As can be seen from Figures 2 and 3, the invention also enables the coating to be obtained at the punch-cut points of regions Z, so that in contrast to known bases, the base of the invention is effectively protected in these regions against oxidation.
- The invention is not limited to the described embodiments, and covers all modification within the same inventive scope. The coating can also be only partial and be applied only to those regions which it is required to protect.
Claims (8)
1. A method for producing metal bases (4) for delivery devices (5) such as aerosol valves, metering pumps and/or atomizers and the like, where said bases are used to fix said devices onto the aperture (3) of a metal can (2) or other vessel which is to contain the product or products to be delivered, characterised in that after the base (4) has been formed from untreated sheet metal, it is at least partly coated (12) with plastics material such as polyethylene, polypropylene or the like.
2. A method as claimed in claim 1, characterised in that the plastics material is applied to the base by spraying, immersion or fluidized-bed methods.
3. A method as claimed in the preceding claims, characterised in that the coating is also applied to its punch-cut edges (Z).
4. A method as claimed in at least one of the preceding claims, characterised in that the coating is differential in terms of material and/or thickness.
5. A method as claimed in at least one of the preceding claims, characterised in that the coating comprises at least one selective accumulation, preferably in the clinghing groove (13) of the base (4).
6. A base, characterised by being coated at least partially with plastics material applied after its forming.
7. A base as claimed in claim 6, characterised in that its inner and outer surfaces are coated with different materials (in terms of physical and/or chemical properties).
8. A base as claimed in claim 6 or claims 6 and 7, characterised in that its groove (13) carries an increased application of plastics material.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2274287 | 1987-11-24 | ||
IT22742/87A IT1223451B (en) | 1987-11-24 | 1987-11-24 | PROCEDURE FOR OBTAINING METALLIC BOTTLES PROTECTED FOR VALVES FOR AEROSOL AND SIMILAR |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0317865A2 true EP0317865A2 (en) | 1989-05-31 |
EP0317865A3 EP0317865A3 (en) | 1989-08-23 |
Family
ID=11199916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88118963A Withdrawn EP0317865A3 (en) | 1987-11-24 | 1988-11-14 | Method for producing protected metal bases for aerosol valves and the like |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0317865A3 (en) |
IT (1) | IT1223451B (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0875463A1 (en) * | 1996-10-02 | 1998-11-04 | Taisei Kako Co., Ltd., | Metallic extruded tube, aerosol can and method of manufacturing metallic extruded tube |
EP0875469A1 (en) * | 1997-04-25 | 1998-11-04 | Summit Packaging Inc. | Plastic coated mounting cup for spray button seal |
FR2779419A1 (en) * | 1998-06-09 | 1999-12-10 | Qualipac Sa | Adapter mounting atomizing pump on a glass bottle especially suitable for perfumes |
US6131566A (en) * | 1995-04-14 | 2000-10-17 | Glaxo Wellcome Inc. | Metered dose inhaler for albuterol |
US6143277A (en) * | 1995-04-14 | 2000-11-07 | Glaxo Wellcome Inc. | Metered dose inhaler for salmeterol |
US6149892A (en) * | 1995-04-14 | 2000-11-21 | Glaxowellcome, Inc. | Metered dose inhaler for beclomethasone dipropionate |
US6253762B1 (en) | 1995-04-14 | 2001-07-03 | Glaxo Wellcome Inc. | Metered dose inhaler for fluticasone propionate |
FR2823183A1 (en) * | 2001-04-04 | 2002-10-11 | Valois Sa | METAL CRIMPING CAPSULE FOR A FLUID PRODUCT DISPENSING DEVICE |
US6978915B1 (en) | 1999-08-07 | 2005-12-27 | Smithkline Beecham Corporation | Aerosol valve |
US8227027B2 (en) | 2007-12-07 | 2012-07-24 | Presspart Gmbh & Co. Kg | Method for applying a polymer coating to an internal surface of a container |
US8292121B2 (en) | 2007-07-16 | 2012-10-23 | Summit Packaging Systems, Inc. | Fitment and valve apparatus for bag-on-valve device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983002437A1 (en) * | 1982-01-20 | 1983-07-21 | Knickerbocker, Michael, G. | Aerosol mounting cup |
WO1984001356A1 (en) * | 1982-09-28 | 1984-04-12 | Seaquist Valve Co | An improved mounting cup and method of making same |
-
1987
- 1987-11-24 IT IT22742/87A patent/IT1223451B/en active
-
1988
- 1988-11-14 EP EP88118963A patent/EP0317865A3/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983002437A1 (en) * | 1982-01-20 | 1983-07-21 | Knickerbocker, Michael, G. | Aerosol mounting cup |
WO1984001356A1 (en) * | 1982-09-28 | 1984-04-12 | Seaquist Valve Co | An improved mounting cup and method of making same |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6511652B1 (en) | 1995-04-14 | 2003-01-28 | Smithkline Beecham Corp. | Metered dose inhaler for beclomethasone dipropionate |
US6546928B1 (en) | 1995-04-14 | 2003-04-15 | Smithkline Beecham Corporation | Metered dose inhaler for fluticasone propionate |
US6511653B1 (en) | 1995-04-14 | 2003-01-28 | Smithkline Beecham Corp. | Metered dose inhaler for beclomethasone dipropionate |
US6131566A (en) * | 1995-04-14 | 2000-10-17 | Glaxo Wellcome Inc. | Metered dose inhaler for albuterol |
US6143277A (en) * | 1995-04-14 | 2000-11-07 | Glaxo Wellcome Inc. | Metered dose inhaler for salmeterol |
US6149892A (en) * | 1995-04-14 | 2000-11-21 | Glaxowellcome, Inc. | Metered dose inhaler for beclomethasone dipropionate |
US6253762B1 (en) | 1995-04-14 | 2001-07-03 | Glaxo Wellcome Inc. | Metered dose inhaler for fluticasone propionate |
US6532955B1 (en) | 1995-04-14 | 2003-03-18 | Smithkline Beecham Corporation | Metered dose inhaler for albuterol |
US6524555B1 (en) | 1995-04-14 | 2003-02-25 | Smithkline Beecham Corp. | Metered dose inhaler for salmeterol |
EP0875463A1 (en) * | 1996-10-02 | 1998-11-04 | Taisei Kako Co., Ltd., | Metallic extruded tube, aerosol can and method of manufacturing metallic extruded tube |
EP0875463A4 (en) * | 1996-10-02 | 2006-11-22 | Taisei Kako Co | Metallic extruded tube, aerosol can and method of manufacturing metallic extruded tube |
EP0875469A1 (en) * | 1997-04-25 | 1998-11-04 | Summit Packaging Inc. | Plastic coated mounting cup for spray button seal |
FR2779419A1 (en) * | 1998-06-09 | 1999-12-10 | Qualipac Sa | Adapter mounting atomizing pump on a glass bottle especially suitable for perfumes |
US6978915B1 (en) | 1999-08-07 | 2005-12-27 | Smithkline Beecham Corporation | Aerosol valve |
FR2823183A1 (en) * | 2001-04-04 | 2002-10-11 | Valois Sa | METAL CRIMPING CAPSULE FOR A FLUID PRODUCT DISPENSING DEVICE |
US7021503B2 (en) | 2001-04-04 | 2006-04-04 | Valois S.A.S. | Metal crimping cap for a fluid dispensing device |
WO2002081332A1 (en) * | 2001-04-04 | 2002-10-17 | Valois S.A.S | Metal crimping cap for a fluid product dispensing device |
US8292121B2 (en) | 2007-07-16 | 2012-10-23 | Summit Packaging Systems, Inc. | Fitment and valve apparatus for bag-on-valve device |
US8227027B2 (en) | 2007-12-07 | 2012-07-24 | Presspart Gmbh & Co. Kg | Method for applying a polymer coating to an internal surface of a container |
US8703306B2 (en) | 2007-12-07 | 2014-04-22 | Presspart Gmbh & Co. Kg | Method for applying a polymer coating to an internal surface of a container |
Also Published As
Publication number | Publication date |
---|---|
IT8722742A0 (en) | 1987-11-24 |
EP0317865A3 (en) | 1989-08-23 |
IT1223451B (en) | 1990-09-19 |
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