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EP0499766A1 - Aérosol et son procédé de fabrication - Google Patents

Aérosol et son procédé de fabrication Download PDF

Info

Publication number
EP0499766A1
EP0499766A1 EP91810880A EP91810880A EP0499766A1 EP 0499766 A1 EP0499766 A1 EP 0499766A1 EP 91810880 A EP91810880 A EP 91810880A EP 91810880 A EP91810880 A EP 91810880A EP 0499766 A1 EP0499766 A1 EP 0499766A1
Authority
EP
European Patent Office
Prior art keywords
container
outer container
groove
double
inner container
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
Application number
EP91810880A
Other languages
German (de)
English (en)
Other versions
EP0499766B1 (fr
Inventor
Hans F. Stoffel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Praezisions Werkzeuge AG
Original Assignee
Prazisions-Werkzeuge AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Prazisions-Werkzeuge AG filed Critical Prazisions-Werkzeuge AG
Publication of EP0499766A1 publication Critical patent/EP0499766A1/fr
Application granted granted Critical
Publication of EP0499766B1 publication Critical patent/EP0499766B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D83/60—Contents and propellant separated
    • B65D83/62—Contents and propellant separated by membrane, bag, or the like

Definitions

  • the present invention relates to a double-walled container for a funnel-free and pressure-resistant can, such as is used for dispensing flowable products, in particular cosmetic products, which container comprises a bottle-shaped outer container made from one piece and a compressible inner container, and a method for producing the same .
  • Containers of this type are manufactured by the packaging industry and are preferably found in the cosmetics and materials industry, which increasingly uses pressure-resistant spray cans and dispensers to package their liquid, pasty, cream or gel-like products.
  • Cans in which the propellant gas is separated from the filling material are of particular importance today for various reasons.
  • the generally flammable propellant gas used in conventional aerosol cans e.g. butane, propene, etc.
  • Double-walled cans consist of a container and a lid, the container essentially being a cylindrically shaped outer part with an inserted inner part and a funnel placed on these container parts, which respectively the lid. carries the valve cap.
  • the cylindrically shaped outer part like the funnel, is made of tinplate or aluminum, while the inner part is made of aluminum or plastic.
  • Valve attachments are again made of aluminum or sheet metal.
  • a double-walled container has therefore also become known, in which the inner container and the outer container are pushed into one another without deforming, the two edges of which are glued together and drawn in and flanged together.
  • the retraction, ie tapering, of the two cylindrical container parts is only possible with expensive and, in particular, failure-prone tools.
  • the crimping of glued areas presents technical difficulties and places extraordinary demands on the process for producing such two-part containers.
  • the present invention is intended to remedy this situation and to create a container of the type mentioned at the outset which does not have the defects of the known containers.
  • a double-walled container is to be created, the usability of flameproof cans is improved compared to conventional can containers, allows cost-effective production, and shows no signs of fatigue and wear even after prolonged or repeated use, i.e. maintains its pressure-retaining properties undiminished.
  • the double-walled container according to the invention is essentially characterized by an outer container formed from one piece, the shape of which corresponds to that of an upwardly tapering vessel with a narrow opening.
  • an annular indentation is provided, which projects into the interior of the outer container in such a way that the indentation, together with the outer container wall, forms an annular groove in the interior, which is open to the side of the outer container facing away from the tapering region.
  • An essentially cup-shaped inner container is fastened in this groove.
  • This container means that Manufacturing a flameproof can only two parts are connected to each other; on the one hand the inner container with the outer container and on the other hand the outer container with the valve cover, with which an absolutely pressure-tight and operationally safe can can be created in a simple manner.
  • the advantages of the container according to the invention therefore not only relate to the operational safety and longevity of the pressure cans produced with these containers, but also particularly relate to the manufacturing aspects.
  • Aluminum can be used for the compressible inner container, the pressure-resistant outer container as well as for the valve cover.
  • the pressure-resistant joining of materials of the same type does not present any difficulties to the person skilled in the art.
  • an epoxy-based adhesive or a polymer modified with carboxyl groups is introduced and hardened in the groove formed by the indentation, and a suitable adhesive is selected for the material to be joined.
  • the surface of the inner container is specially treated, in particular painted, in order to avoid chemical reactions of the inner container material with the filling material.
  • the chamber of the container according to the invention that holds the filling material is at least partially covered with a lacquer, plastic or another suitable protective film.
  • the method created for the production of the container according to the invention is characterized by the features of the present claim 7 and leads, surprisingly, to the fact that the inner container does not need to be specially pre-formed or re-formed in a complex manner and yet an operationally reliable, two-part container is created can.
  • the cup-shaped inner container is inserted into the still undeformed outer container in a first process step, such that the bottom parts of these container parts lie adjacent to one another.
  • the axial extent of the inner container is less than that of the outer container.
  • the part of the outer container which projects over the inner container used in this way is then deformed according to the invention in a second method step without deforming the inner container in the process.
  • the upper edge of the inner container is pushed into the groove created by the inventive deformation of the outer container and fastened there, in particular glued.
  • the part of the outer container forming the groove is additionally deformed and is placed against the tapering part of the outer container.
  • the part of the outer container forming the groove can be provided with an outer circumferential groove, in particular in order to additionally secure the inner container.
  • the inner container which comes into contact with the filling material is at least partially coated with a suitable protective film.
  • This coating makes it possible to make the container according to the invention also suitable for technical fluids, such as silicone sealants or lubricants, and for products from the food and pharmaceutical industries.
  • Figure 1 shows a cross section through a known three-part can bottom part
  • Figure 2 shows a cross section through a known two-part can bottom part
  • FIG. 3 shows a cross section through a container according to the invention
  • Figures 4a-d different embodiments of the container deformed according to the invention
  • Figure 5 is a schematic representation of the method for producing the container according to the invention.
  • the three-part container 1 of known type shown in FIG. 1 comprises a double-walled container 2 and a funnel 3, which double-walled container 2 essentially consists of an outer container 4 and an inner container 5.
  • the outer container 4 is made of pure aluminum and drawn into a cylindrical shape, i.e. is seamless.
  • the upper container edge is designed as a flange in order to be flanged and flanged with the inner container 5 and the funnel 3.
  • the bottom 7 of the outer container 4 is curved inwards and provided with a bottom hole 9 provided for receiving a stopper 8.
  • the inner container 5 placed in the outer container 4 is also made of pure aluminum and is e.g. brought into a foldable form by soft annealing.
  • This funnel 3 is usually made of tinplate, and exceptionally also of aluminum.
  • the container 1 constructed in this way is capped with a prefabricated valve piece after the product to be packaged has been filled in, in that the valve plate is clipped to the funnel opening.
  • a desired pressure medium is introduced in the space 10 between the outer container 4 and the inner bag 5 and held therein with the stopper 8.
  • FIG. 2 shows a two-part container 1 known to the public, in which the funnel 3 passes through a can shoulder 11 integrally molded with the outer container 4 is replaced.
  • the inner container 5 of this container 1 is made of a flexible plastic, for example of a suitable polyethylene, in order to make it possible to insert this inner container 5 without any noteworthy injuries.
  • a preformed collar 12 of the inner container 5 lies precisely on the upper edge of the outer container 4. In this case, it turns out that concurrently reclinchen or. crimping three different materials as a long-term disadvantage.
  • FIG. 3 shows a container 1 according to the invention, in which the funnel 3 is replaced by a corresponding shape of the outer container 4.
  • the container 1 according to the invention thus comprises only two components, namely a specially shaped outer container 4 and an inner container 5.
  • the deformation of the outer container 4 is such that an annular indentation 13 lies in the area of the neck of the bottle-shaped outer container 4.
  • This indentation 13 is directed such that an annular groove 14 is formed in the interior of the outer container 4.
  • the upper edge of the inner container 5 is fastened in this groove 14.
  • any suitable adhesive can be used for the fastening and this can be cured in a controlled manner at most by means of high frequency, heat supply or the like.
  • both the outer container 4 and the compressible inner container 5 are made of aluminum and an epoxy-based adhesive is used for their mutual fastening. Such adhesives are well known to the person skilled in the art and need not be explained further here.
  • the outer container has an inwardly curved bottom 7. An opening 9 provided in this base 7 serves to introduce the desired pressure medium into the intermediate space 10 formed by the inner container 5 and the outer container 4. This pressure medium should be able to exert a pressure of up to 21 bar without the outer container 4 leaking.
  • the inner container 5 consists of soft aluminum, as is known today as tube material, and can be additionally treated in the desired manner for certain purposes.
  • this container can be provided with a protective covering 15, as is described in detail in EP-A-418 724, so that no chemical reaction can take place with the filling material.
  • the inner container 5 itself can also be made from a product-compatible plastic.
  • the cup-shaped inner container 5 is somewhat expanded in its opening area and even has a rolled rim.
  • the inner container 5 can thus be spaced apart from the outer container and can be fastened even more securely in the groove 14.
  • the ratio between the volume of the intermediate space 10 and the volume of the inner container 5 can be changed in a simple manner, i.e. can be adapted to the wishes of the can manufacturer.
  • Cans in use today have a volume ratio of 36:64.
  • FIGS. 4a-d show possible additional deformations of the part of the container 1 according to the invention, which part forms the groove 14. As shown in FIG. 4a, this can rest against the tapering part of the outer container 4 or have a circumferential groove 19, as shown, for example, in the figure 4b is shown. It is understood that an O-ring 16 can also be inserted into the groove 14 for better fixation and stabilization and / or the wall thickness of the container parts to be connected is increased at least in this area.
  • FIG. 5 schematically shows the essential process steps for the production of a container according to the invention.
  • the second container 5 is inserted into the first container 4 in the present method.
  • the geometrical dimensions of the two containers 4, 5 are matched to one another and normally correspond to the masses of commercially available cans, i.e. 170mm height at 40mm diameter for 125ml cans, respectively. 200mm height at 50mm diameter for 255ml cans. It is important, however, that the axial extent of the inner container 5 is at least so much smaller than that of the outer container 4 that the outer container 4 can be deformed in a second process step without deforming the inner container 5. In the preferred embodiment, this difference in length is approximately 20 mm.
  • the inner container 5 is pushed against the opening until its edge lies in the groove 14 and is somewhat jammed there.
  • a circumferential groove 19 is now formed in the part of the outer container 4 forming the groove 14 from the outside, such that the inner edge of the inner container 5 can no longer slide out of the groove 14.
  • a suitable adhesive 18 is introduced into this groove 14 for final fastening. It has proven to be particularly advantageous to allow easy-flowing adhesive, in particular an adhesive with a viscosity of 500 poise, to flow into the groove 14 through the opening 9 in the bottom 7 of the outer container 4 via the slightly convex bottom of the inner container 5 until the groove 14 is filled with it.
  • the adhesive can also be introduced through the valve-side opening of the outer container and applied there before the inner container 5 is brought into the groove 14.
  • the inner container 5 does not need to be subjected to any further deformation and the outer container 4 no longer needs an additional one Funnel 3 to be connected.
  • the user is free to attach another protective covering 15, as described for example in EP-A-418'724, in the chamber 17 which comes into contact with the filling material.
  • the present invention is not limited to the above exemplary embodiment, but rather that further modifications in the design of the outer container 4, in particular for the mutual fastening of the containers 4, 5, are within the range of the skilled person.
  • the groove 14 can be stiffened further, or any coatings can be applied in order to equip the container with products that are compatible with the product.
  • the use of components made of the same material avoids all undesirable metallic effects that occur with commercially available cans.
  • the containers according to the invention are thus characterized by an inexpensive production method and high long-term stability, i.e. Security off.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Secondary Cells (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
EP91810880A 1991-02-19 1991-11-13 Aérosol et son procédé de fabrication Expired - Lifetime EP0499766B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH505/91 1991-02-19
CH50591 1991-02-19

Publications (2)

Publication Number Publication Date
EP0499766A1 true EP0499766A1 (fr) 1992-08-26
EP0499766B1 EP0499766B1 (fr) 1994-12-14

Family

ID=4188541

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91810880A Expired - Lifetime EP0499766B1 (fr) 1991-02-19 1991-11-13 Aérosol et son procédé de fabrication

Country Status (4)

Country Link
US (1) US5388716A (fr)
EP (1) EP0499766B1 (fr)
AT (1) ATE115497T1 (fr)
DE (1) DE59103905D1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0755877A1 (fr) * 1995-07-28 1997-01-29 IPC Packaging AG Récipient à deux compartiments avec récipient interne conique
US5873491A (en) * 1997-04-14 1999-02-23 Valois S.A. Set of components for assembly as a dispensing package of the non-vented type having an internal, collapsible bag
WO1999020543A1 (fr) * 1997-10-17 1999-04-29 Lechner Gmbh Procede de production d'une bombe a aerosol presentant deux chambres, et dispositif pour mettre en oeuvre ledit procede
US5950880A (en) * 1997-04-14 1999-09-14 Valois S.A. Set of components for assembly as a dispensing package of the non-vented type having a take-up piston
CN1049236C (zh) * 1993-04-15 2000-02-09 华中理工大学 防止油层粘土膨胀多效稳定剂及其制备方法
GB2390645A (en) * 2002-05-22 2004-01-14 Cambridge Consultants Drug delivery assembly
USRE39520E1 (en) 1998-11-19 2007-03-20 Seaquist Closures Foreign, Inc. Dispensing structure incorporating a valve-containing fitment for mounting to a container and a package with a dispensing structure
WO2010122161A1 (fr) * 2009-04-23 2010-10-28 Crown Packaging Technology, Inc. Récipient à double paroi et son procédé de fabrication
DE102013221656A1 (de) * 2013-10-24 2015-04-30 Zf Friedrichshafen Ag Verfahren zum gebördelten Verbinden mindestens eines ersten Bauteils mit einem zweiten Bauteil, gebördelte Baugruppe sowie deren Halbzeug und Werkzeugmaschine zur Herstellung einer gebördelten Baugruppe

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9524628D0 (en) * 1995-12-01 1996-01-31 Metal Box Plc "Containers"
US6209344B1 (en) * 1998-03-31 2001-04-03 Gautam K. Mahajan Multi-walled container
DE19935158A1 (de) * 1999-07-27 2001-02-01 Boerner Georg Chem Werk Vorrichtung und Verfahren zum Ausgeben von fluiden Stoffen, insbesondere von Kleb-, Dicht-, Schmier- und/oder Beschichtungsstoffen
US6431389B1 (en) 2000-07-27 2002-08-13 Wki Holding Company, Inc. Composite bowl
US7575133B2 (en) * 2003-10-06 2009-08-18 Crown Cork & Seal Technologies Corporation Bi-can having internal bag
FR2893315B1 (fr) * 2005-11-16 2011-05-06 Goemar Lab Sa Dispositif apte a delivrer des fluides, notamment medicamenteux sous pression
US9033185B2 (en) 2005-12-16 2015-05-19 Power Container Corp Variable volume pocket, fluid dispensing device comprising said pocket and method for filling said device
US20080099493A1 (en) * 2006-10-27 2008-05-01 The Coca-Cola Company Containers having a space for a material, a cooling device, or a heating device
EP1927554A1 (fr) * 2006-11-29 2008-06-04 Impress Group B.V. Boîte sous pression, tel qu'un flacon aérosol
US20090045222A1 (en) * 2007-08-14 2009-02-19 Power Container Corp. Bag of variable volume, device suitable for dispensing fluids comprising said bag, and process for filling said device
US20090236363A1 (en) * 2008-03-14 2009-09-24 Bissell Homecare, Inc. Manual Spray Cleaner
US20100001020A1 (en) * 2008-07-02 2010-01-07 Ashley Louis S method of attaching a soft plastic bag in an aerosol can, and other cans such as flat top cans
USD742251S1 (en) 2014-07-16 2015-11-03 Ball Corporation Two-piece contoured metallic container
USD758207S1 (en) 2014-08-08 2016-06-07 Ball Corporation Two-piece contoured metallic container
EP3206810A4 (fr) 2014-10-15 2018-05-23 Ball Corporation Appareil et procédé pour former une épaule et un col d'un contenant métallique
BR112017007236A2 (pt) 2014-10-28 2017-12-12 Ball Corp aparelho e método para formar uma cuba com um fundo reformado
USD804309S1 (en) 2016-02-17 2017-12-05 Ball Corporation Metal bottle
USD1047693S1 (en) 2020-06-09 2024-10-22 Ball Corporation Metal bottle
USD1043246S1 (en) 2022-08-05 2024-09-24 Ball Corporation Bottle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1757286A1 (de) * 1968-04-20 1971-04-08 Bi Aerosol Verpackungs Gmbh & Geraet zur Abgabe von fluessigen bis pastoesen Massen unter Druck
CH591997A5 (en) * 1975-04-25 1977-10-14 Juillet Hubert Pressurised product distribution equipment - has pocket welded to casing for part of height along defined lines
DE3808438A1 (de) * 1987-10-06 1989-04-20 Karl Galia Geraet zur aufnahme und abgabe von fluessigen und pastoesen massen
EP0354137A1 (fr) * 1988-07-25 1990-02-07 Cebal S.A. Procédé de fabrication et de conditionnement d'un distributeur à poche, sous-ensembles et distributeurs correspondants

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US3784049A (en) * 1972-10-26 1974-01-08 Loma Corp Ft Worth Container with bag-liner locking rim
US3964630A (en) * 1974-10-16 1976-06-22 Getz Donald J Garbage can for use with disposable bags
US4308973A (en) * 1978-06-30 1982-01-05 The Continental Group, Inc. Compartmented aerosol container
US4293353A (en) * 1978-11-03 1981-10-06 The Continental Group, Inc. Sealing-attaching system for bag type aerosol containers
US4459793A (en) * 1980-04-28 1984-07-17 National Can Corporation Composite container construction
NL8402464A (nl) * 1984-08-09 1986-03-03 Idetra Bv Buro-afscheurinrichting voor het scheiden van de rand van een bladenset.
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1757286A1 (de) * 1968-04-20 1971-04-08 Bi Aerosol Verpackungs Gmbh & Geraet zur Abgabe von fluessigen bis pastoesen Massen unter Druck
CH591997A5 (en) * 1975-04-25 1977-10-14 Juillet Hubert Pressurised product distribution equipment - has pocket welded to casing for part of height along defined lines
DE3808438A1 (de) * 1987-10-06 1989-04-20 Karl Galia Geraet zur aufnahme und abgabe von fluessigen und pastoesen massen
EP0354137A1 (fr) * 1988-07-25 1990-02-07 Cebal S.A. Procédé de fabrication et de conditionnement d'un distributeur à poche, sous-ensembles et distributeurs correspondants

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1049236C (zh) * 1993-04-15 2000-02-09 华中理工大学 防止油层粘土膨胀多效稳定剂及其制备方法
EP0755877A1 (fr) * 1995-07-28 1997-01-29 IPC Packaging AG Récipient à deux compartiments avec récipient interne conique
US5873491A (en) * 1997-04-14 1999-02-23 Valois S.A. Set of components for assembly as a dispensing package of the non-vented type having an internal, collapsible bag
US5950880A (en) * 1997-04-14 1999-09-14 Valois S.A. Set of components for assembly as a dispensing package of the non-vented type having a take-up piston
WO1999020543A1 (fr) * 1997-10-17 1999-04-29 Lechner Gmbh Procede de production d'une bombe a aerosol presentant deux chambres, et dispositif pour mettre en oeuvre ledit procede
USRE39520E1 (en) 1998-11-19 2007-03-20 Seaquist Closures Foreign, Inc. Dispensing structure incorporating a valve-containing fitment for mounting to a container and a package with a dispensing structure
GB2390645A (en) * 2002-05-22 2004-01-14 Cambridge Consultants Drug delivery assembly
WO2010122161A1 (fr) * 2009-04-23 2010-10-28 Crown Packaging Technology, Inc. Récipient à double paroi et son procédé de fabrication
US20120037646A1 (en) * 2009-04-23 2012-02-16 Paul Robert Dunwoody Double walled container and method of manufacture
DE102013221656A1 (de) * 2013-10-24 2015-04-30 Zf Friedrichshafen Ag Verfahren zum gebördelten Verbinden mindestens eines ersten Bauteils mit einem zweiten Bauteil, gebördelte Baugruppe sowie deren Halbzeug und Werkzeugmaschine zur Herstellung einer gebördelten Baugruppe

Also Published As

Publication number Publication date
ATE115497T1 (de) 1994-12-15
DE59103905D1 (de) 1995-01-26
EP0499766B1 (fr) 1994-12-14
US5388716A (en) 1995-02-14

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