WO2005014264A1 - Process for protecting vessels in general and in particular metallic cans containing foodstuff - Google Patents

Process for protecting vessels in general and in particular metallic cans containing foodstuff Download PDF

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Publication number
WO2005014264A1
WO2005014264A1 PCT/IT2004/000470 IT2004000470W WO2005014264A1 WO 2005014264 A1 WO2005014264 A1 WO 2005014264A1 IT 2004000470 W IT2004000470 W IT 2004000470W WO 2005014264 A1 WO2005014264 A1 WO 2005014264A1
Authority
WO
WIPO (PCT)
Prior art keywords
vessel
process
film
characterised
step
Prior art date
Application number
PCT/IT2004/000470
Other languages
French (fr)
Inventor
Giuliano Bisagni
Ottorino Ori
Original Assignee
Giuliano Bisagni
Ottorino Ori
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
Priority to ITPR20030070 priority Critical patent/ITPR20030070A1/en
Priority to ITPR2003A000070 priority
Application filed by Giuliano Bisagni, Ottorino Ori filed Critical Giuliano Bisagni
Publication of WO2005014264A1 publication Critical patent/WO2005014264A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/02Sterilising, e.g. of complete packages
    • B65B55/12Sterilising contents prior to, or during, packaging
    • B65B55/18Sterilising contents prior to, or during, packaging by liquids or gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/38Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses
    • B29C63/44Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses the shape of the layers or sheathings being adapted to the shape of the articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02Shrinking wrappers, containers, or container covers during or after packaging by heat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/02Sterilising, e.g. of complete packages
    • B65B55/04Sterilising wrappers or receptacles prior to, or during, packaging
    • B65B55/06Sterilising wrappers or receptacles prior to, or during, packaging by heat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/02Sterilising, e.g. of complete packages
    • B65B55/04Sterilising wrappers or receptacles prior to, or during, packaging
    • B65B55/08Sterilising wrappers or receptacles prior to, or during, packaging by irradiation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D75/00Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/002Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers in shrink films
    • B65D75/004Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers in shrink films with auxiliary packaging elements, e.g. protective pads or frames, trays

Abstract

The invention deals with a process for packaging foodstuff and in particular deals with a process for protecting vessels such as bottles, cans for beverage or boxed containing cooked and stored foods. The process provides for the complete wrapping of the whole vessel (1) with an heat shrinking film (4) in order to create a total cover that, when heating, will completely adhere to the whole external surface of the vessel itself.

Description

Title: PROCESS FOR PROTECTING VESSELS IN GENERAL AND IN PARTICULAR METALLIC CANS CONTAINING FOODSTUFF D E S C R I P T I O N Object of the present invention is a process for protecting vessels in general and in particular plastic bottles and metallic cans containing foodstuff. As known, metallic cans or boxes contai-ning foodstuff have a severe problem of a hygienic nature, that has been attempted to be solved without however providing absolute guarantees. The problem is more strongly felt for aluminum cans for beverages that can be used both by pouring their contents in a glass, or worse by directly drinking from the can. In both cases, either liquid, in the first case, or the person's mouth, comes in contact with the surface of the can cover that can be polluted by dust or bacterial charges. There have been several attempts to solve this problem, among which it has been attempted to apply on every can a small cover of rigid plastic material that wraps the whole surface of the cover and its crimping edge; this small cover is snappingly inserted but it can be extremely easily removed so that it cannot give an absolute hygienic guarantee of the vessel. US-A-4658568 shows a process for partially covering cylindrical objects, such as cans, with a film that is not heat sh-m-king. With the process disclosed in the above-mentioned patent, the protection does not provide any hygienic guarantee since dust can pass between film and can and fouls the cover: therefore, it is not a hermetic seal. US-A-5001887 shows a method for applying a heat shrinking seal to the closure of a vessel of the bottle type, but it cannot be applied to metallic boxes and cans and for the below-listed objects. International Application Publication WO 01/23267 refers to a protection for cans that provides for the use of a sheet of tinfoil that is applied by adherence on the can cover. The main object of the present invention is providing an absolute guarantee on the vessel hygiene and being a warranty seal that makes the customer at ease. A further object of the present invention is applying a completely hermetic protection to the can or box. A further object is avoiding the traditional labelling of the vessel since the process of protecting can advantageously comprise the simultaneous labelling. These and other objects are reached by the process for protecting metallic cans containing foodstuff, subject of the present invention, that is characterised by what is provided in the below-listed claims and particularly in that it provides for the complete wrapping of the whole external surface of the can with a film of heat shrinking plastic material that perfectly adheres to the can itself. These and other characteristics will be better pointed out by the following description of a preferred sequence of the process, shown, merely as a no-limiting example, in the enclosed table of drawing in which: - figure 1 shows in a perspective view a can for beverages before the process; - figure 2 shows a can completely wrapped by the heat shrinking before its heat shrinkage; - figure 3 shows a can completely wrapped by the film after the film heat shrinkage; - figure 4 shows, in a perspective view, a metallic box, typically for stored fishes, completely wrapped according to the process object of the present invention.

With reference to the figures, 1 designates an aluminium can containing a beverage. The can of the traditional type provides for a tearable tongue 2 placed on the cover 3 of the can itself. According to the present invention, the can is completely wrapped, on its whole external surface, by a film 4 of heat shr-mking plastic material, such as for example polyethylene, in such a way as to create a total cover that, in a following heating step, will perfectly adhere to such external can surface. Before applying the heat shrinking film, the vessel can advantageously be subjected to an external sterilisation or sanification treatment, for example by passing in a steam chamber (autoclave) or by washing with adequate liquids.

Another treatment to which the can can be advantageously subjected before being wrapped is the drying treatment, for example through hot air, in order to remove every residual of humidity that can be created during the bottling process.

The chance of embedding, between film and can, the bacterial charges acquired when fil-ling-in the cans themselves or during the transport to the final packaging lines, will thereby be excluded.

According to a possible variation, the sterilisation treatment can be performed with the can already wrapped by the heat shrinking film, for example with ultraviolet rays or in autoclave.

According to a possible variation to the process, the heat shrmking film protection can be applied to the can in a vacuum environment in order to avoid the presence of polluted air that could remain captured between film and can and to thereby guarantee the perfect film adherence. For some products, in order to lower the product packaging costs, the heat shri-nking film could be stamped on one face in order to form the can label. The thereby-applied protection is a warranty seal for the user that finds a product in which there is no chance of hygienic tampering unless completely or partially removing the protection. Even if the description specifically refers to cans for beverages, it is evident that the process can be applied also to metallic boxes for containing other foodstuff products, such as stored meat and fish (see figure 4), vegetable products cooked and stored in driving liquids such as beans, peas, etc. These metallic boxes, that are opened with tearing systems or with suitable can-openers, in fact have the same hygienic problems of the cans for beverages. Even if the above mentioned description specifically refers to the protection of metallic cans or boxes, nothing forbids to apply the process also to bottles made of glass or PET or plastic in general, thereby avoiding complex sealing processes, such as for example the one disclosed in US-A-50001887. The vessel protection realised with the above-described process also provides the advantage of being used for inserting promotional material or for providing the chance of realising prize competitions with points, etc. A further advantage is that the process can be applied to any vessel shape, such as for example small beverage recharging tanks, such as the metallic tanks for beer or rigid plastic containers for water.

Claims

CLAIMS 1. Process for protecting vessels in general and in particular metallic cans containing foodstuff, characterised in that it provides for the complete wrapping of the external surface of the vessel with a film made of heat shrinking plastic material and afterwards for performing the heat shrinkage of the film by heating. 2. Process according to claim 1 , characterised in that before the step of wrapping the vessel with the film, a step of sterilising or sanifying the external vessel surface is performed. 3. Process according to claim 1, characterised in that before wrapping the vessel with a film, a step of drying the external surface of the can or box is performed. 4. Process according to claim 1, characterised in that the film heat shrinking occurs in a vacuum environment. 5. Process according to claim 1, characterised in that after the step of heat shrinking the ilm, a step of sterilising is performed through ultraviolet rays or treatments in autoclave. 6. Process according to claim 1 , characterised in that, in order to wrap the vessel, a film is used with a stamped face in order to constitute the vessel label.
PCT/IT2004/000470 2003-08-08 2004-08-04 Process for protecting vessels in general and in particular metallic cans containing foodstuff WO2005014264A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITPR20030070 ITPR20030070A1 (en) 2003-08-08 2003-08-08 Procedure to protect metal cans containing
ITPR2003A000070 2003-08-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20040770769 EP1651423A1 (en) 2003-08-08 2004-08-04 Process for protecting vessels in general and in particular metallic cans containing foodstuff

Publications (1)

Publication Number Publication Date
WO2005014264A1 true WO2005014264A1 (en) 2005-02-17

Family

ID=34131232

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2004/000470 WO2005014264A1 (en) 2003-08-08 2004-08-04 Process for protecting vessels in general and in particular metallic cans containing foodstuff

Country Status (3)

Country Link
EP (1) EP1651423A1 (en)
IT (1) ITPR20030070A1 (en)
WO (1) WO2005014264A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007045943A1 (en) * 2005-10-21 2007-04-26 Tecnosanimed S.R.L. Box-like container for surgical sterilized tools and method for packaging thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2720309A (en) * 1953-06-19 1955-10-11 Goodyear Tire & Rubber Twine package
GB1018391A (en) * 1963-01-14 1966-01-26 Storey Brothers And Company Lt An improved method of covering articles with plastic sheeting
US3770546A (en) * 1972-01-07 1973-11-06 Gen Motors Corp Method of vinyl covering a refrigerator door panel
FR2508001A1 (en) * 1981-06-23 1982-12-24 Lumbres Papeteries Cartonnerie Sleeves of expanded thermoplastic sheet for fragile containers - for protection against impact and mutual abrasion in bulk packs
US4467003A (en) * 1978-12-18 1984-08-21 Safta S.P.A. Valves for sterilizable flat flexible containers and process for their manufacture
US4656813A (en) * 1983-11-14 1987-04-14 Bieffe S.P.A. System and equipment for the manufacture and filling of flexible sterilizable bags
US4658568A (en) * 1984-12-03 1987-04-21 Reid Philip L Process for covering articles with film
US5074415A (en) * 1990-05-11 1991-12-24 Halpak Plastics, Inc. Method and apparatus for manufacturing heat shrinkable enclosures

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2720309A (en) * 1953-06-19 1955-10-11 Goodyear Tire & Rubber Twine package
GB1018391A (en) * 1963-01-14 1966-01-26 Storey Brothers And Company Lt An improved method of covering articles with plastic sheeting
US3770546A (en) * 1972-01-07 1973-11-06 Gen Motors Corp Method of vinyl covering a refrigerator door panel
US4467003A (en) * 1978-12-18 1984-08-21 Safta S.P.A. Valves for sterilizable flat flexible containers and process for their manufacture
FR2508001A1 (en) * 1981-06-23 1982-12-24 Lumbres Papeteries Cartonnerie Sleeves of expanded thermoplastic sheet for fragile containers - for protection against impact and mutual abrasion in bulk packs
US4656813A (en) * 1983-11-14 1987-04-14 Bieffe S.P.A. System and equipment for the manufacture and filling of flexible sterilizable bags
US4658568A (en) * 1984-12-03 1987-04-21 Reid Philip L Process for covering articles with film
US5074415A (en) * 1990-05-11 1991-12-24 Halpak Plastics, Inc. Method and apparatus for manufacturing heat shrinkable enclosures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007045943A1 (en) * 2005-10-21 2007-04-26 Tecnosanimed S.R.L. Box-like container for surgical sterilized tools and method for packaging thereof

Also Published As

Publication number Publication date
ITPR20030070A1 (en) 2005-02-09
EP1651423A1 (en) 2006-05-03

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