EP3265389A1 - Boite de conserve a fond souple et procédé de fabrication correspondant - Google Patents
Boite de conserve a fond souple et procédé de fabrication correspondantInfo
- Publication number
- EP3265389A1 EP3265389A1 EP16709315.2A EP16709315A EP3265389A1 EP 3265389 A1 EP3265389 A1 EP 3265389A1 EP 16709315 A EP16709315 A EP 16709315A EP 3265389 A1 EP3265389 A1 EP 3265389A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- box
- metal body
- flexible
- sterilization
- boxes
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 33
- 235000013324 preserved food Nutrition 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 claims abstract description 108
- 239000002184 metal Substances 0.000 claims abstract description 108
- 230000001954 sterilising effect Effects 0.000 claims description 53
- 238000004659 sterilization and disinfection Methods 0.000 claims description 51
- 238000010438 heat treatment Methods 0.000 claims description 27
- 235000013305 food Nutrition 0.000 claims description 24
- 238000003466 welding Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 239000004743 Polypropylene Substances 0.000 claims description 8
- -1 polypropylene Polymers 0.000 claims description 8
- 229920001155 polypropylene Polymers 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000002788 crimping Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims description 3
- 239000002966 varnish Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 13
- 238000003860 storage Methods 0.000 description 11
- 229910052782 aluminium Inorganic materials 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 238000001816 cooling Methods 0.000 description 7
- 239000011888 foil Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000002427 irreversible effect Effects 0.000 description 5
- 238000004321 preservation Methods 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010411 cooking Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 244000046052 Phaseolus vulgaris Species 0.000 description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 235000013350 formula milk Nutrition 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 235000015067 sauces Nutrition 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 241000193155 Clostridium botulinum Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 240000008415 Lactuca sativa Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 235000011850 desserts Nutrition 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- YSXLJTGZMRNQSG-UHFFFAOYSA-L disodium;6-amino-5-[[2-[4-[2-[4-[2-[(2-amino-5-sulfonatonaphthalen-1-yl)diazenyl]phenyl]sulfonyloxyphenyl]propan-2-yl]phenoxy]sulfonylphenyl]diazenyl]naphthalene-1-sulfonate Chemical compound [Na+].[Na+].C1=CC=C2C(N=NC3=CC=CC=C3S(=O)(=O)OC3=CC=C(C=C3)C(C)(C=3C=CC(OS(=O)(=O)C=4C(=CC=CC=4)N=NC=4C5=CC=CC(=C5C=CC=4N)S([O-])(=O)=O)=CC=3)C)=C(N)C=CC2=C1S([O-])(=O)=O YSXLJTGZMRNQSG-UHFFFAOYSA-L 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000021222 fish soup Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 235000015250 liver sausages Nutrition 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 235000012045 salad Nutrition 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
- B65D17/50—Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs
- B65D17/501—Flexible tape or foil-like material
- B65D17/502—Flexible tape or foil-like material applied to the external part of the container wall only
-
- 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
- B65D15/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials
- B65D15/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of curved, or partially curved, cross-section, e.g. cans, drums
- B65D15/10—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of curved, or partially curved, cross-section, e.g. cans, drums with curved, or partially curved, walls made of metal
-
- 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
- B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
- B65D7/12—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls
Definitions
- the field of the invention is that of agribusiness.
- the invention relates more particularly to containers for the preservation of food for a long time.
- the invention also relates to the fund and the method of manufacturing such containers.
- Metal cans allow long-term preservation of the foods they contain. They consist of a metal body and two rigid metal bases which are generally secured to the body by crimping to make a sealed container.
- the food products contained in these boxes once closed, undergo heat treatment at high temperature, especially at a temperature above 1 10 ° C (sterilization). In this way, these food products can be stored for several months at room temperature.
- the body of the box is generally subjected to positive and / or negative pressure stresses according to the method used, which can cause deformations of the package and cause a variation of the internal volume of the box.
- positive and / or negative pressure stresses according to the method used, which can cause deformations of the package and cause a variation of the internal volume of the box.
- Another disadvantage of this type of box lies in the difficulty of opening the packaging. Indeed, the thickness of the metal bottom being relatively large to withstand internal pressure variations, the opening can be difficult.
- the total opening ring (see below): it raises and pulls a ring secured to the cover previously incised. It is by far the most widespread and ever-increasing system. In 2007, 86% of the cans are equipped with easy opening (the rate was 77% in 2002).
- the peelable opening pulling on the tongue, a heat-sealed foil seal comes off the box to provide full opening.
- This new system is mainly used for nomadic products (salads, desserts.), But is not suitable for boxes to undergo sterilization, because the force required (the opening force (initial tearing force) is usually of the order of 20 N, but generally less than 28 N) to peel off the lid is lower than that exerted by the internal overpressure observed during sterilization.
- the ring system aims to allow easy opening of the boxes having a relatively large metal bottom thickness, to withstand internal pressure variations.
- This system implements, on one of the two metal bottoms, a gripping ring allowing the opening of a portion of the metal base, previously weakened (by an incision, for example).
- the peelable system uses a body and a metal bottom, the box being closed by a lid consisting of a peelable flexible sheet secured to a conventional metal bottom which is previously hollowed out. The assembly is then crimped around the edge of the upper part of the metal body.
- the peelability is in particular and preferably measured according to the method described in FR 2955844, peeling of the lid at 90 ° at a speed of 300 mm / min), making it possible to measure the initial peel, flow and tearing forces. final.
- a disadvantage of this technique lies in the relatively high manufacturing cost of such a box. Indeed, the manufacturing method is substantially identical to that for obtaining a conventional can but also requires steps of cutting the metal base and securing the flexible sheet metal bottom.
- the present invention aims to solve the weaknesses of the solutions of the prior art and therefore proposes a can comprising a metal body having an upper portion hermetically sealed by a first base formed by a flexible sheet.
- said can comprises a metal body having a top sealed by a first bottom and a bottom sealed by a second bottom.
- said first and second funds are each formed by a flexible sheet.
- tin having, at one of its ends or at each of its ends, a bottom in the form of a film or a flexible sheet ("foil" in English).
- the other bottom may in particular be a "classic" bottom, that is to say crimped to the metal body of the box according to the methods known in the prior art. It is also conceivable that the second bottom of the box is in fact in the same mass as the metal body, which is observed when the can is manufactured by stamping and / or drawing a metal sheet.
- the body of such a box therefore undergoes fewer pressure stresses than a box body using conventional metal bottoms, under industrial conditions of sterilization.
- the flexible fund (s) contribute more to the variation in the volume of the inside of the box than the rigid metal bottoms.
- the soft bottom (s) used to close the boxes are not peelable bottoms, and that they must be attached to the box in such a way that they can withstand the internal pressure of the box when sterilization, if necessary.
- the invention is based on the use of a flexible film for sealing at least one end of a tin-type box, without said film being peelable.
- the invention in a first aspect, relates to a tin can comprising a metal body having an end hermetically closed by a first bottom formed by a flexible sheet.
- a metal body having an end hermetically closed by a first bottom formed by a flexible sheet.
- the internal pressure of the hermetically sealed can is equal to atmospheric pressure or may be slightly less than the pressure atmospheric.
- This aspect of the invention aims to solve the problem of the quantity of material used for the manufacture of cans, by reducing the material used, both for the bottom and eventually for the body of the box, while maintaining the capacity of sterilization of the box for the preservation of the food contained therein.
- the invention in a second aspect, relates to a can which comprises a metal body having an upper portion hermetically sealed by a first bottom and a lower portion hermetically sealed by a second bottom, said first and second bottoms are each formed by a flexible sheet.
- the bottoms may optionally (although this is preferred) be set so that the box filled with one or more food products (or non-food items) withstands the conditions of sterilization of said products.
- cans that have flexible films attached to the metal body, at both ends, without these boxes are intended for sterilization (in particular, it is envisaged boxes containing milk powder, such as infant milk).
- the fixing of at least one film may be less strong than for the boxes for sterilization.
- at least one of the two films (preferably only one of the two) can be peelable. If, in this embodiment, the presence of two peelable films is also envisaged, this is not preferred, to prevent the consumer from easily opening the box at both ends.
- the inside of the box is in depression relative to the outside of the box (atmospheric pressure).
- This aspect of the invention aims in particular to solve the problem of deformation of the "bottom" bottom of the box after filling (the internal depression makes it possible to compensate for the weight of the contents of the box and to avoid a convex deformation of the flexible bottom, ie towards the outside of the box).
- This aspect of the invention aims in particular to ensure, on the one hand, a maximum protection of the flexible bottom in the steps of logistics, handling, conveying and storage of the can, possibly further allowing a slight deformation of the soft bottom to the inside the package (concave deformation). Avoiding convex deformation, and even generating a concave deformation of the flexible bottom also makes it possible to ensure a better guarantee of acceptability of the product by the consumer. Indeed, the presence of a convex bottom (bulging towards the outside of the packaging) could make think of a product not stable or unfit for consumption (curved).
- the invention in another aspect, relates to a can comprising a metal body having at least one end hermetically closed by a bottom formed by a flexible sheet, welded to the upper part of said metal body, and such that the upper part welded said metal body of the box is folded / rolled to form a peripheral hem at said end of the box.
- a flexible film may be peelable or not, or the films are fixed so that the box will withstand sterilization conditions.
- This aspect of the invention aims in particular to solve the technical problem of handling and storage boxes with one or more flexible funds, said hem allowing protection of (or) soft bottom especially on industrial chains or during placement on the shelves at the point of sale. Depending on the shape of the hem, it will also optimize the storage and storage boxes.
- the invention relates to a can having at least one bottom formed by a flexible sheet, said flexible sheet having a pre-cut portion.
- the box may comprise two flexible bottoms, have (or not) an internal vacuum with respect to the atmospheric pressure and / or have (or not) peripheral hems formed by the rolling / folding of the end of the metal body.
- This aspect of the invention aims to solve the technical problem of the opening of the box, providing a technical solution (precut zone) to allow easy opening of the box by facilitating the rupture of the flexible bottom.
- the invention relates to a can (preferably filled with food products), having at least one bottom formed by a flexible sheet, the internal pressure in said box being lower than the atmospheric pressure under the conditions ambient.
- atmospheric pressure at ambient conditions
- the ambient temperature is 20 ° C.
- said flexible sheet comprises at least one metal layer, such as an aluminum layer.
- the flexible bottoms used to close one or both ends of the can can thus be formed of several layers, and are known in the art and therefore obtained by known methods, such as rolling. It should, however, that one of its layers can allow welding with the body of the box.
- the cans according to the invention must be able to withstand the sterilization conditions necessary to ensure the preservation of the products.
- the sterilization is in a heat treatment of a foodstuff aimed at the destruction of the micro-organisms even sporulated, and the enzymes source of alteration of the products (heart temperature of the product higher than 105 ° C), and ensure the cooking of the product.
- the sterilizing value (Fo) of a heat treatment can be defined, which expresses the efficiency of a heat treatment. Fo is established relative to the most heat-resistant spores (spores of Clostridium botulinum). The higher the heat treatment is performed at a high temperature and the longer its duration, the higher the Fo. Fo is expressed in time equivalent at 121, 1 ° C to destroy the spore.
- time-temperature pairs that are applied to foodstuffs in order to sterilize them by maintaining a satisfactory organoleptic quality.
- sterilization conditions are based on the product characteristics (initial contamination, pH, texture and initial temperature), the nature and format of the packaging (including the size of the cans) and the characteristics of the product. autoclave
- the products to be sterilized can have various consistencies ranging from liquids such as fish soups, sauces, etc.) to solid ones (foie gras, pâté, etc.) while some products include liquids and solids (canned vegetables, meat in sauce).
- the consistency of the product influences the diffusion of heat into the product: the more liquid a product, the faster the heat is diffused.
- the sterilization conditions depend on the nature of the products (vegetables or fruits, or other products) to be sterilized.
- the temperature curves and durations of application of these temperatures to the boxes will depend on the products contained in these boxes.
- the sterilization treatment is carried out in three distinct phases: - rise in temperature of the element to be sterilized: this element is placed in a hermetically sealed sterilizer / autoclave
- sterilization scale the temperature of regime, is reached and remains stable for a definite duration, to allow the sterilization of the product.
- the scale is adjusted to allow both the thermal treatment of the product while preserving its organoleptic qualities.
- the product when the duration of the scale is reached, the product is cooled, either by replacing the heating fluid with cold water or by immersing the element in a cold water bath.
- the objective is to allow the rapid cooling of food, especially to stop cooking and avoid over-cooking.
- the temperature rise is accomplished by placing the box in the sterilizer and then raising the temperature of the sterilizer. In this embodiment, the rise in temperature within the box follows that of the sterilizer.
- the box is placed in a sterilizer for which the rise in temperature has already been performed, which induces a "shock" thermal and pressure on the box.
- a sterilizer for which the rise in temperature has already been performed, which induces a "shock" thermal and pressure on the box.
- the following conditions inlet of the box in an enclosure at a pressure of 2.5-2.8 bar (in absolute pressure, that is to say an overpressure of 1.5-1.8 bar relative to the atmospheric pressure) and a temperature of about 130 ° C, which induces a very strong external overpressure before the box heats up) illustrate this embodiment.
- a sterilization treatment is as follows:
- the boxes can undergo an internal overpressure of between -1, 7 and 1, 3 bar.
- the cans may experience an internal overpressure of from about -0.5 to about 1.1 bar (the term being about +/- 10%).
- the following conditions can be applied:
- the cans can undergo an internal overpressure of between about -1.4 and about 1.3 bar (the term being about +/- 10%).
- the cans can undergo an internal overpressure of between about -1.4 and about 1.5 bar (the term being about +/- 10%).
- the boxes according to the invention resist an internal overpressure ( corresponding to the difference between the pressure inside the box and the external pressure) greater than or equal to 0.7 bar, 0.8 bar, preferably greater than or equal to 0.9 bar, preferably greater than or equal to 1 bar, preferably greater than or equal to 1.05 bar, preferably greater than or equal to 1.1 bar, preferably greater than or equal to 1.15 bar, preferably greater than or equal to 1.2 bar.
- the boxes resist an internal overpressure of up to 1.5 bar.
- the cans must withstand this internal overpressure for at least 2 minutes, preferably for at least 3 minutes, preferably for at least 4 minutes preferably for at least 5 minutes, preferably for at least 6 minutes, preferably for at least 5 minutes, preferably 7 minutes, preferably for at least 8 minutes, preferably for at least 9 minutes.
- Such internal overpressure is obtained by any method known to those skilled in the art, using sterilizers / autoclaves known in the art. Internal and external pressures are measured by sensors placed respectively in the box and in the autoclave, the internal overpressure being the difference between the internal pressure and the external pressure.
- the boxes are considered to withstand an internal overpressure when their integrity is maintained after applying the internal overpressure during the time mentioned above. This means that the boxes do not "explode” under the effect of the overpressure, and that the flexible bottom is not torn off or destroyed under the effect of this overpressure.
- the boxes can undergo an external overpressure (that is to say that the external pressure will be greater than the internal pressure). This is particularly the case when the boxes are introduced into an enclosure already in temperature and pressure conditions used for sterilization.
- the boxes (whose internal pressure is the atmospheric pressure) then undergo an external overpressure up to 2 bars.
- the boxes must therefore also withstand this external pressure. If an internal depression is envisaged in the box under ambient conditions (to play on the concavity of the flexible bottom), then it will be preferable to sterilize the boxes just after the hot filling (that is to say when the temperature of the box is of the order of 35-40 ° C), the internal pressure of the boxes then being close to atmospheric pressure.
- the boxes resist an internal overpressure of up to 2 bar.
- the boxes do not “implant” under the effect of the external overpressure, and that the flexible bottom is not torn off or destroyed under the effect of this overpressure.
- This external pressure is generally observed for a period generally less than 2 minutes, or even less than one minute.
- the physical appearance of the boxes is not altered after sterilization, that is to say when the cans retain their appearance (for example cylindrical if the metal body has been prepared in this form).
- the boxes may deform (both outwardly and inwardly) during sterilization operations, it is preferred that these deformations are not irreversible, i.e. the boxes return to their original shape (ie the shape they had before entering the sterilizer) after the sterilization operations.
- the boxes must withstand an internal overpressure of between -0.4 bar and 0.8 bar or any other value mentioned above, preferably without undergoing irreversible deformation (i.e. metal body which is maintained) after delivery in the ambient conditions.
- the negative internal pressure corresponds to the external pressure applied to the box.
- the mass of the metal body is less than 50 g (a conventional metal body of the prior art for this box format has a mass equal to 51 g).
- the mass of said metal body is less than 40 g.
- the thickness of the metal body of the box according to the invention is substantially reduced insofar as the metal body undergoes fewer stresses than the metal body of a conventional can.
- the mass of said soft bottom is less than 10 g.
- the mass of said soft bottom is less than 5g.
- the mass of the flexible bottoms of the invention is substantially lower than that of the known bottoms.
- the mass of a conventional rigid box bottom is equal to 16g
- the mass of a bottom easy opening by gripping ring is 22g
- the mass of a peelable bottom is 10g.
- the mass of said can according to the invention is less than 56 g.
- the implementation of two flexible funds reduces the mass of funds and the body forming the can.
- the mass of the can according to the invention is, therefore, reduced compared to the boxes of the prior art whose mass is generally between 77g and 89g.
- the decrease in the thickness of the bottoms and the body of the box therefore allows a relatively large gain in mass, and therefore a reduction in the cost of the can.
- said first and possibly second bottoms are welded on the upper part and the lower part respectively of said metal body (in particular by heat-sealing).
- the flexible bottoms are directly welded to the box, and more precisely on the metal plate of the body of the box, at the ends of the body.
- the bottom or bottoms are welded on the inside of the body of the box, on flat annular flanges at the end of the body.
- Flexible funds are not peelable. This means that it is not possible to break the bottom weld on the box by applying a reasonable force (of the order of 20 N, applied force for peelable funds).
- the initial tearing force to be applied in order to "peel" the bottoms of the metallic body is therefore preferably greater than 25 N, more preferably greater than 28 N, or 30 N, even more preferably greater than 35 N.
- the flexible funds of the box are in one piece, unlike peelable funds developed under the brand EASIP®.
- These Easip® peelable bottoms are constructed by placing a complex aluminum-based film on a steel or aluminum ring or ring crimped onto the body of the can (see for example WO 2012/072383), while Flexible bottoms described in this application are directly welded to the body of the box. As indicated above, the welding of the flexible bottoms is sufficiently robust to withstand the pressure stresses that occur during a heat treatment (sterilization) of the food content, and which are exerted, as previously emphasized, partly on the soft funds.
- the welding of the film on the body of the box is carried out by any method known in the art.
- the edge of the box may be coated locally with a material capable of making it possible to heat-seal (organic and / or inorganic material in which mineral and / or organic fillers may be incorporated, in particular polypropylene (PP)).
- a material capable of making it possible to heat-seal organic and / or inorganic material in which mineral and / or organic fillers may be incorporated, in particular polypropylene (PP)
- PP polypropylene
- the heat-sealing welding can be carried out. applying a pressure of 20 to 70 kPa for 0.25 to 4 seconds at a temperature of 160 ° C to 220 ° C. The exact conditions of pressure and duration of application of the pressure depend on the applied temperature. It can even go up to more than 4 seconds if using manual equipment (type manual heating tongs).
- Fastelfoil TM brand films (Fastel Adhesive Products, San Clemente, CA, USA) can be used, particularly the PP320 reference film, for which the manufacturer is considering the application of pressure. between 3 and 10 psi (20 to 70 kPa) for 0.25 to 1 second at a temperature of 165 to 175 ° C.
- the welded upper and / or lower portions of said metal body of the box are respectively folded / rolled so as to form a peripheral hem at each end of the box.
- the invention thus relates to a tin can comprising a metal body having a top sealed by a first bottom, characterized in that said first bottom is formed by a flexible sheet, and is welded to the upper part of said metal body , the welded upper portion of said metal body of the box being further folded / rolled to form a peripheral hem at the upper end of the box. It is clear that the term "superior" is relative and means at one end of the box.
- the welding of the flexible bottoms on the box body is protected by a roll of the metal plate of the box body.
- This roll, or hem, is prominent and protects soft bottoms (and solder) during sterilization, transportation, handling and storage of the box.
- This mode of implementation is particularly suitable when the two funds of the box are made of flexible sheets.
- the invention relates to a tin can comprising a metal body having an upper portion hermetically sealed by a first bottom and a lower portion hermetically closed by a second bottom, characterized in that said first and second bottoms are each formed by a flexible sheet, said first and second bottoms being welded on the upper part and the lower part respectively of said metal body, said welded upper and lower parts of said metal body of the box being respectively folded / rolled up each forming a peripheral hem at each end of the box.
- the box (s) resist the pressure conditions indicated above, even if this is preferred.
- One or both flexible funds can be peelable.
- said hems are of different shapes.
- the shape of the roll of the upper bottom may be different from the shape of the roll of the lower bottom and thus allows optimized stacking of such cans while protecting the flexible bottoms.
- the invention also relates to a method of manufacturing a tin can comprising
- the funds described in this application are not peelable funds as described in the prior art. They can not be detached from the body of the box by exerting a "reasonable" traction that would exert a user to open a peelable flexible bottom (about 20 N).
- said first bottom and / or said second bottom has (s) a pre-cut portion.
- a can with one or two bottoms formed by a flexible sheet, and wherein one and optionally the other flexible sheet has a pre-cut portion is an object of the invention.
- the object of the invention also includes any tin can thus defined, that one or the other bottom is peelable, as long as at least one both funds have a pre-cut portion as described above.
- a pre-cut in particular by laser or other technology, is implemented on at least one of the two flexible funds. This allows the consumer to easily perforate the flexible bottom and thus open the can to access food content.
- This pre-cut is performed once the heat treatment of the finalized food content, when the flexible bottom is no longer made to undergo strong pressure constraints so as not to degrade the latter.
- this laser precut common in the art, allows a partial incision of the flexible sheet, maintaining air impermeability to maintain the quality and integrity of the product contained in the can. The flexible sheet is thus weakened along a line of rupture corresponding to the place of the precut, which helps to open it.
- the said pre-cut part (s) is / are associated with a visual marking.
- the pre-cut can be done on a pre-marking ink or the pre-marking ink can be done once the pre-cut finalized which will allow the consumer to better visualize the precut compared to the rest of the bottom of the box.
- a tongue or a small gripping ring is glued on the flexible bottom and close to the precut zone, which can be pulled by the end user, in order to induce the rupture of the zone. fragility, and thus improve the opening of the box.
- the invention also relates to a method comprising a step of pre-cutting a flexible bottom closing one end of a can, said pre-cut consisting of a partial incision of said flexible sheet, maintaining the air impermeability of said background.
- said metal body has a truncated cone shape.
- the implementation of flexible funds at each end of a can overcome the standards of conventional rigid fund production, and thus the shapes of metal bodies associated.
- This aspect makes it possible to limit the volume of storage of boxes when the latter are empty, that is to say before filling or after use of the box in particular.
- the invention also relates to a can bottom formed by a flexible sheet intended to be implemented in a can as described above.
- the flexible sheet comprises a metal layer (of aluminum, for example) covered on at least one face by a plastic layer.
- a flexible sheet consisting of such a succession of layers of different materials ensures a high strength of the sheet so as to withstand the pressure changes that occur during the heat treatment, for example.
- the invention also relates to a method of manufacturing a can as described above comprising:
- the method may also include one or more of the following steps, performed before or after the step indicated above:
- the filling of the metal body is carried out before the welding step above.
- the manufacturing method further comprises a step of working the metal of folding or rolling the welded part (before or after filling as appropriate) of said body of the box so as to form a peripheral hem at the end of the box, thus acting in particular as a protection of the flexible fund.
- the above method may also include a heat treatment step (sterilization) of the can sealed at both ends.
- the manufacturing method also comprises a step of precut of the flexible bottom to allow easy opening of the box.
- This precut occurs preferentially after the heat treatment since the latter causes high pressure stresses and it is therefore preferable that the flexible bottom is not weakened.
- the invention also relates to a method of sterilizing a can as described above (comprising a metal body and hermetically closed by one or two flexible funds to (respectively) one or both ends of said metal body) , comprising a step of placing said box under temperature and pressure conditions inducing an internal suppression (in said box) of at least 0.8 bar (or any other value as indicated above).
- said box is overpressured for at least 2 minutes (or any other duration indicated above, a preferred duration being greater than or equal to 6 minutes, or 7 minutes).
- the invention also relates to a method of manufacturing a can as described above comprising:
- the manufacturing method further comprises a metal working step of folding or rolling the lower welded portion (before filling) and then the upper welded portion (after filling) of said body of the box so as to form a peripheral hem at each end of the box, thus acting as a soft bottom protection.
- the manufacturing method comprises a step of precut of at least one of the two flexible bottoms to allow easy opening of the box.
- This precut occurs preferentially after the heat treatment since the latter causes high pressure stresses and it is therefore preferable that the flexible bottom is not weakened.
- Such a manufacturing method can be implemented efficiently, industrially.
- the weight of the contents is likely to deform the bottom soft bottom.
- the hem that can be placed at the lower end can protect the soft bottom and prevent it from touching the plane on which the box is placed, including when it is deformed by the weight of the contents of the box ( due to sufficient space between (a) the point of contact of the hem and the storage plane and (b) the soft bottom); the conditions of realization of the hem, and the space between the end of the hem and the soft bottom are therefore adapted to the mass that will have to undergo the flexible bottom, as well as its strength and deformability).
- the box placing the second base
- the box will have a slight internal vacuum (of the order of 0.1 to 0.4 bar) relative to the atmospheric pressure.
- the external overpressure will exert a force opposed to the force exerted by the food (weight) on the outer bottom, which will not deform or, therefore, marginally.
- This internal depression (relative to the atmospheric pressure) can be obtained by conducting the hermetic sealing step of the box in a vacuum chamber.
- the filling step which precedes this step of closing the box can also be performed in this vacuum chamber.
- These operating conditions are particularly suitable when the contents of the box is a content at room temperature, in particular milk powder (especially infant milk), chocolate powder, ground coffee, or other.
- this vacuum can be obtained under ambient conditions by closing the box while the products have been put hot in the box, and keeping some amount of air in the box. The trapped air is then at the temperature of the products. When the box is cooled, the cooling of the air will induce the internal depression to the box. In this embodiment, it will be preferable to introduce the box into the sterilization chamber before it cools (that is to say while the temperature of the box is still greater than about 35 ° VS).
- a tin can, closed by at least one flexible bottom at one of its ends (preferably closed by flexible bottoms at both ends), and which is in slight internal depression with respect to the atmospheric pressure, is also an object of the invention.
- Figure 1 is a perspective view of a can according to the invention, comprising two flexible bottoms;
- Figure 2 is a schematic sectional view of the metal body of the box of Figure 1 during its manufacture
- FIG. 3 illustrates an example of a sheet that can be used on a box according to the invention, showing the pre-cut portion intended to facilitate the opening of the box;
- Figure 4 is an exploded view of the various layers constituting a flexible sheet according to the invention.
- FIG. 5 is a partial schematic representation, in section, of the upper and lower junctions between the metal body and the flexible sheet of the box of Figure 1;
- Figure 6 illustrates an example of storage of two cans according to the invention, especially when they have two flexible bottoms
- Figure 7 illustrates the main steps of the method of manufacturing a can according to the invention, comprising two flexible bottoms, as described in the examples.
- Figure 8 is a perspective view of another form of can according to the invention.
- the invention therefore relates to a new type of tin can comprising one or two funds, or lids, in the form of a foil ("foil" in English).
- a foil in English.
- Such a can is distinguished from known cans that implement rigid metal bottoms (relatively thick) at each of their ends.
- These flexible bottoms are designed to absorb the pressure stresses to which the can is subjected when the latter undergoes heat treatment (sterilization) intended to preserve the food products it contains.
- the thickness of the body of the can thus be reduced.
- the particular structure of the can according to the invention reduces the need for metal compared to current cans and reduces manufacturing costs.
- FIGS. 1 to 6 One embodiment of a tin according to the invention, comprising two flexible bottoms is described later in connection with FIGS. 1 to 6. These figures and the teaching below are also applicable when the box contains only one soft bottom.
- the can 1 comprises a metal body 2 of cylindrical section.
- the metal body 2 is secured at both ends of a flexible bottom 3 to achieve the hermetic closure of the can 1.
- the metal body 2 which is preferably made of steel or aluminum, has, in longitudinal section, a substantially parallelepipedal profile, as illustrated in FIG.
- the profile has two rectilinear and parallel walls 21 terminating at each of their ends by flat portions 22, 23 annular extending perpendicularly to the walls 21, around the periphery of the opening (these flat portions 22, 23 are voluntarily oversized in Figure 2 for the sake of clarity).
- the flat portions 22, 23 are each intended to receive a flexible bottom.
- soft funds 3 in the form of a flexible sheet (or
- solder 31 are affixed respectively to the upper portion 22 and lower 23 before being secured thereto by welding (induction welding or Joule effect, for example).
- the solder must be sufficiently strong / resistant to ensure optimal hold of the flexible bottoms 3 during the heat treatment (sterilization) of the can 1.
- peripheral portion or periphery 31 1 of the flexible sheet 31 is thus directly welded to the flat portions 22, 23 annular of the metal body 2.
- This winding, double staple fold for example, forms an upper hem 24 and a lower hem 25 respectively encompassing the upper portion 22 and the lower portion 23 of the metal body 2 and the peripheral portion 31 1 of the corresponding flexible sheet 31.
- Such a hem makes it possible to protect the flexible sheets 31 from shocks and friction which could possibly degrade the tightness of the box canned 1, especially when handling and transporting the can 1 (in automatic conveying systems, for example).
- the upper hem 24 is oriented towards the inside of the can 1 and that the bottom hem 25 is oriented towards the outside of the can 1. This allows stable stacking and optimized storage of cans 1 on each other, as shown in Figure 6. However, it is also possible to envisage an upper hem 24 facing outwardly of the can 1 and a hem lower end facing the interior of the can 1.
- the flexible bottom 3 of the invention is formed by a flexible sheet 31 consisting of one or more layers.
- the layers can be made of different materials, such as polypropylene, aluminum or polyethylene.
- the flexible sheet 31 of the flexible base 3 comprises two plastic layers 310a and 310c between which is inserted a metal sheet, an aluminum foil 310b in this example.
- Such a combination of materials provides optimum strength while ensuring a high flexibility of the flexible bottom 3, that is to say that the flexible sheet is able to stretch without breaking.
- an aluminum foil 310b in such a flexible bottom 3 provides a reliable oxygen barrier. This aspect contributes to the long-term preservation of sterilized foodstuffs, which allows long-term ambient storage.
- the plastic layer 310c located between the aluminum foil 310b and the flat portions 22, 23 ensures optimum sealing of the flexible bottoms 3 on the metal body 2 of the box.
- Such a flexible bottom 3 also has a small thickness and a reduced weight.
- the flexible bottom 3 has a mass less than 10g, and more precisely less than 5g.
- the mass of the flexible bottom 3 is equal to 3g.
- the flexible bottoms 3 are able to deform in a reversible manner, so as to vary the interior volume of the box thus absorbing pressure variations.
- the flexible bottoms 3 allow the box 1 to inflate and retract during pressure changes during the heat treatment.
- the metal body 2 being less stressed during the heat treatment, its thickness, and therefore its mass, are reduced compared to a conventional box body.
- a conventional metal body has a mass of the order of 51 g.
- the implementation of two flexible funds in accordance with the invention allows the implementation of a metal body 2 of reduced thickness and having a mass less than 50g.
- the mass of the metal body 2 is less than 40 g.
- a can 1 according to the invention implementing two flexible funds of 3g each and a conventional box body (50g) has a total mass of 56g maximum.
- the boxes of the prior art which have a conventional body of 51 g, a conventional rigid bottom of 16 g and a peelable bottom of 10 g have a mass of 77 g, which is much higher.
- the mass gain of the can 1 of the invention is therefore at least 15g.
- One of the flexible sheets 31 of the can 1 has a precut 313 which is intended to weaken the flexible bottom 3 and allow easy opening of the can 1.
- the precut 313 of the flexible bottom 3 is implemented in a conventional manner, by a laser cutting technique preferably. This operation is performed after sterilization of the can 1 so as not to weaken the flexible bottom 3 which must ensure optimum sealing of the can 1. Indeed, as noted above, during sterilization, the flexible bottom 3 undergoes significant constraints due to internal pressure variations in the can 1.
- This precut 313 is indicated to the user by means of an ink tracing, dotted for example.
- the opening of the can 1 of the invention does not require any particular tool and does not require significant effort on the part of the user.
- This approach allows easy opening (the opening requires little effort and no special tool) and ensures optimal sealing of the can 1.
- the can of the invention is obtained by a different manufacturing process compared to that of the cans of the prior art.
- such a manufacturing method comprises:
- a precut step E7 of at least one of the two flexible bottoms 3 to allow easy opening of the box 1. Note that the method of manufacturing such a can according to the invention does not require the implementation of a crimping operation.
- the structure of the can according to the invention offers an optimal resistance to the pressures suffered during the sterilization of the food content.
- the can according to the invention has an easy opening for the user and guarantees a perfect seal.
- Such a box is also light, robust, simple and inexpensive to manufacture.
- the precut may have other forms than a circular shape.
- Figure 8 shows a can 1 having a truncated cone-shaped box body 2, the diameter of the lower soft bottom (not visible) being smaller than that of the upper flexible bottom 3.
- This particular shape makes it possible to stack the tapered cans on each other stably, but also in each other, in a compact manner, once the empty boxes.
- Stacking the boxes into each other can be done before filling the can and / or after consumption of the contents of the can.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Packages (AREA)
- Table Devices Or Equipment (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Bakery Products And Manufacturing Methods Therefor (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19186177.2A EP3604155B1 (fr) | 2015-03-04 | 2016-03-04 | Boîte de conserve à fond souple et procédé de fabrication correspondant |
SI201630422T SI3265389T1 (sl) | 2015-03-04 | 2016-03-04 | Posoda za konzervirano hrano s prožnim dnom in odgovarjajoči postopek izdelave |
RSP20191026 RS59228B1 (sr) | 2015-03-04 | 2016-03-04 | Konzerva sa savitljivim dancem i odgovarajući postupak za njenu izradu |
PL16709315T PL3265389T3 (pl) | 2015-03-04 | 2016-03-04 | Puszka z elastycznym dnem i odpowiedni sposób wytwarzania |
HRP20191801TT HRP20191801T1 (hr) | 2015-03-04 | 2019-10-03 | Spremnik za konzerviranu hranu sa savitljivim dnom i odgovarajući postupak proizvodnje |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1551795 | 2015-03-04 | ||
FR1557949A FR3040377B1 (fr) | 2015-08-26 | 2015-08-26 | Boite de conserve a fond souple, fond souple de boite et procede de fabrication correspondant |
PCT/EP2016/054649 WO2016139341A1 (fr) | 2015-03-04 | 2016-03-04 | Boite de conserve a fond souple et procédé de fabrication correspondant |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19186177.2A Division EP3604155B1 (fr) | 2015-03-04 | 2016-03-04 | Boîte de conserve à fond souple et procédé de fabrication correspondant |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3265389A1 true EP3265389A1 (fr) | 2018-01-10 |
EP3265389B1 EP3265389B1 (fr) | 2019-07-17 |
Family
ID=55524298
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16709315.2A Active EP3265389B1 (fr) | 2015-03-04 | 2016-03-04 | Boite de conserve a fond souple et procédé de fabrication correspondant |
EP19186177.2A Active EP3604155B1 (fr) | 2015-03-04 | 2016-03-04 | Boîte de conserve à fond souple et procédé de fabrication correspondant |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19186177.2A Active EP3604155B1 (fr) | 2015-03-04 | 2016-03-04 | Boîte de conserve à fond souple et procédé de fabrication correspondant |
Country Status (14)
Country | Link |
---|---|
US (1) | US10583958B2 (fr) |
EP (2) | EP3265389B1 (fr) |
CA (1) | CA2978371A1 (fr) |
CY (1) | CY1122767T1 (fr) |
DK (1) | DK3265389T3 (fr) |
ES (1) | ES2746829T3 (fr) |
HR (1) | HRP20191801T1 (fr) |
HU (1) | HUE045436T2 (fr) |
LT (1) | LT3265389T (fr) |
PL (1) | PL3265389T3 (fr) |
PT (1) | PT3265389T (fr) |
RS (1) | RS59228B1 (fr) |
SI (1) | SI3265389T1 (fr) |
WO (1) | WO2016139341A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3101861B1 (fr) * | 2019-10-14 | 2021-11-12 | Groupe Daucy | Méthode de fabrication d’une boîte de conserve |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
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US2406900A (en) | 1944-06-30 | 1946-09-03 | Continental Can Co | Adhesive tape container with nesting feature |
US3079031A (en) | 1960-02-23 | 1963-02-26 | Continental Can Co | Metal band double seamed to metal can for attaching elastic transparent end thereto |
US3434651A (en) * | 1967-05-12 | 1969-03-25 | Continental Can Co | Mesh reinforced closure for full opening can |
US3964670A (en) * | 1974-12-09 | 1976-06-22 | The Procter & Gamble Company | Closure |
FR2604976B1 (fr) | 1986-10-08 | 1989-06-23 | Carnaud Emballage Sa | Emballage metallique, notamment pour produit en poudre et procede de fabrication d'un tel emballage |
US4940158A (en) * | 1987-09-22 | 1990-07-10 | American National Can Company | Container and seam ring for container |
FR2639561B1 (fr) | 1988-11-29 | 1994-05-20 | Carnaud Sa | Procede de fabrication d'un emballage metallique a opercule souple et emballage metallique correspondant |
FR2657587B1 (fr) | 1990-01-26 | 1992-04-30 | Cmb Packaging Sa | Emballage metallique a opercule thermoscelle et procede de fabrication d'un tel emballage. |
DE9005868U1 (de) * | 1990-05-23 | 1991-01-24 | Blechwarenfabriken Züchner GmbH & Co, 3370 Seesen | Metallverpackung mit siegelbarem Profilrand |
US5353943A (en) | 1993-03-15 | 1994-10-11 | Sonoco Products Company | Easy-opening composite closure for hermetic sealing of a packaging container by double seaming |
US5770290A (en) * | 1993-12-01 | 1998-06-23 | Mchenry; Robert J. | Easy open end of a metal-plastic construction |
WO2001042105A2 (fr) * | 1999-12-10 | 2001-06-14 | Henkel Kommanditgesellschaft Auf Aktien | Fut contenant un adhesif thermofusible et procede pour remplir ledit fut avec ce dernier |
FR2813502B1 (fr) | 2000-09-07 | 2004-04-23 | Domaine Des Genets | Procede et installation pour ouvrir des oeufs |
FR2817502B1 (fr) | 2000-12-06 | 2003-02-28 | Pechiney Emballage Flexible Eu | Materiau d'operculage pelable et refermable |
FR2831483B1 (fr) | 2001-10-26 | 2004-01-09 | Pechiney Emballage Flexible Eu | Materiaux d'operculage ou opercules pelables multicouches |
FR2851232B1 (fr) | 2003-02-17 | 2005-04-01 | Pechiney Emballage Flexible Eu | Materiau d'operculage et opercules predecoupes a base de polyolefine |
PL1878666T3 (pl) | 2006-07-13 | 2011-03-31 | Impress Metal Packaging Sa | Pokrywa do pojemnika wyposażona w zdzieralną membranę |
EP2019045A1 (fr) * | 2007-07-23 | 2009-01-28 | Alcan Technology & Management Ltd. | Couvercle de boîte doté d'une bague de couvercle et membrane de fermeture pelable |
DE102009007860A1 (de) * | 2008-11-07 | 2010-05-12 | Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg | Behälter |
FR2942460A1 (fr) * | 2009-02-26 | 2010-08-27 | Impress Group Bv | Boite metallique en trois pieces |
FR2955844B1 (fr) | 2010-02-03 | 2012-04-27 | Saint Gobain Emballage | Procede d'ouverture facile d'un opercule thermoscelle sur le buvant d'un recipient en verre |
US20120043324A1 (en) | 2010-08-18 | 2012-02-23 | Silgan Containers Llc | Container with Reduced, Peel-Off-Force Tear Configuration |
PL2646328T3 (pl) | 2010-11-29 | 2017-07-31 | Crown Packaging Technology, Inc. | Zamknięcie |
EP2734453B1 (fr) * | 2011-07-21 | 2017-11-01 | Crown Packaging Technology, Inc. | Boîtes métalliques dotées de couvercles pelables |
-
2016
- 2016-03-04 SI SI201630422T patent/SI3265389T1/sl unknown
- 2016-03-04 PT PT16709315T patent/PT3265389T/pt unknown
- 2016-03-04 EP EP16709315.2A patent/EP3265389B1/fr active Active
- 2016-03-04 WO PCT/EP2016/054649 patent/WO2016139341A1/fr active Application Filing
- 2016-03-04 US US15/554,538 patent/US10583958B2/en active Active
- 2016-03-04 CA CA2978371A patent/CA2978371A1/fr not_active Abandoned
- 2016-03-04 ES ES16709315T patent/ES2746829T3/es active Active
- 2016-03-04 DK DK16709315.2T patent/DK3265389T3/da active
- 2016-03-04 RS RSP20191026 patent/RS59228B1/sr unknown
- 2016-03-04 PL PL16709315T patent/PL3265389T3/pl unknown
- 2016-03-04 HU HUE16709315A patent/HUE045436T2/hu unknown
- 2016-03-04 LT LT16709315T patent/LT3265389T/lt unknown
- 2016-03-04 EP EP19186177.2A patent/EP3604155B1/fr active Active
-
2019
- 2019-10-03 HR HRP20191801TT patent/HRP20191801T1/hr unknown
- 2019-10-15 CY CY20191101081T patent/CY1122767T1/el unknown
Also Published As
Publication number | Publication date |
---|---|
ES2746829T3 (es) | 2020-03-09 |
EP3265389B1 (fr) | 2019-07-17 |
HRP20191801T1 (hr) | 2020-02-21 |
US20180072456A1 (en) | 2018-03-15 |
US10583958B2 (en) | 2020-03-10 |
DK3265389T3 (da) | 2019-10-14 |
CY1122767T1 (el) | 2021-05-05 |
PT3265389T (pt) | 2019-08-06 |
EP3604155B1 (fr) | 2024-05-01 |
HUE045436T2 (hu) | 2019-12-30 |
SI3265389T1 (sl) | 2019-11-29 |
RS59228B1 (sr) | 2019-10-31 |
LT3265389T (lt) | 2019-10-25 |
CA2978371A1 (fr) | 2016-09-09 |
PL3265389T3 (pl) | 2020-01-31 |
WO2016139341A1 (fr) | 2016-09-09 |
EP3604155A1 (fr) | 2020-02-05 |
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