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
  • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
  • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
  • B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials
• • 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
  • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
  • B65D25/02—Internal fittings
  • B65D25/04—Partitions
  • B65D25/08—Partitions with provisions for removing or destroying, e.g. to facilitate mixing of contents
• • 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
  • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
  • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
  • B65D81/3205—Separate rigid or semi-rigid containers joined to each other at their external surfaces
  • B65D81/3211—Separate rigid or semi-rigid containers joined to each other at their external surfaces coaxially and provided with means facilitating admixture
• • 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
  • B65D2231/00—Means for facilitating the complete expelling of the contents
  • B65D2231/005—Means for facilitating the complete expelling of the contents the container being rigid
• • 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
  • B65D2231/00—Means for facilitating the complete expelling of the contents
  • B65D2231/02—Precut holes or weakened zones
  • B65D2231/027—Precut holes or weakened zones for discharging a solidified or gelatinous products, e.g. pudding, ice-cream, from the package

Definitions

• the invention relates to a two-compartment packaging for a food product composed of at least two substances, one relatively solid and one more liquid, such as for example a blank and its topping, which have an incompatibility that makes it impossible to coexist, contact and / or filling, in the same package.
• the invention is also particularly suitable for these products consisting of two substances that require demolding before consumption.
• the invention relates to the demolding process as such and a method of packaging a product in such a package.
• the package has a bottom easy to drill, allowing an air inlet to facilitate the release of a gelled substance, demolding which is also favored by the overall shape of the package.
• a relatively liquid coating substance may be placed on the bottom of the pot and form a batt during demolding since it falls on top of the gelled product as soon as it is demolded.
• the two substances such as a flan and a fruit coulis
• An object of the present invention is therefore to provide a packaging suitable for the packaging of two substances, which does not have the above disadvantages.
• a first object of the present invention is to provide a suitable packaging for the packaging of two substances to obtain a clear boundary between the two substances that must remain separate.
• a second object of the present invention is to provide a package for two substances which allows easy demolding of a gelled substance, and at the same time an aesthetic topping of the substance gelled by the second substance.
• a third object of the present invention is to provide a package for two substances that allows demolding according to a user-friendly demolding process.
• a fourth object of the present invention is to provide a method of manufacturing a package for two food substances that is simple and inexpensive.
• the invention is based on a food product package comprising two compartments separated by a membrane, the first compartment being adapted to contain a first relatively solid substance and the second compartment being adapted to contain a second, more liquid substance, characterized in that it comprises a means for achieving an easy opening in the membrane which makes possible the passage of the second substance to the first compartment, and in that it comprises a means of balancing the pressure of the package to promote its demolding.
• the means for achieving easy opening in the membrane consists of a fragile part of the membrane which can be easily broken under the effect of manual pressure.
• the means for achieving easy opening in the membrane comprises a piston directed towards the membrane to pierce the membrane in case of pressure on the underside of the package.
• the pressure balancing means consists of a means for introducing air into the package from a fragile part of the wall of the second compartment or a cover or operculum closing an opening of the wall of the second compartment.
• the pressure balancing means consists of a deformable wall of the second compartment which makes it possible manual pressure on this wall to reduce the volume of the second compartment and increase the air pressure it contains.
• the first compartment may be delimited by a frustoconical wall forming a shoulder, the second compartment being below the first compartment and delimited by a softer wall, the separation membrane being welded or glued horizontally on the shoulder to separate the two compartments.
• the first compartment may be delimited by a frustoconical wall and the second compartment may be disposed laterally against the extension of these walls.
• the invention also relates to a method of demolding a food product contained in a packaging as defined above, characterized in that it comprises the following steps:
• the process for demolding the food product may also comprise the following steps:
• the invention also relates to a method of packaging a food product, characterized in that it comprises the following steps: a-production by thermoforming a container comprising a wall in the upper part and a wall in the lower part ; b-filling of the lower volume of the package delimited by the lower wall by a substance; c-bonding or welding a membrane to separate the upper volume delimited by the wall of the lower volume; filling the upper volume of the package placed above the membrane with another substance; e-bonding or welding of a closing cap.
• Step a of this process may include making a shoulder at the boundary between the top wall and the bottom wall and step c may comprise welding or bonding the membrane on that shoulder.
• Figure 1 shows a sectional view of a package according to a first embodiment of the invention
• Figure 2a shows a perspective view of the package of the first embodiment of Figure 1
• FIG. 2b represents a perspective view of the packaging of the first embodiment in a demolding phase of its contents
• Figure 3 shows a sectional view of a variant of the first embodiment
• Figure 4 shows a sectional view of a package according to a second embodiment of the invention
• Figure 5a shows a perspective view of the packaging of the second embodiment
• FIG. 5b represents a perspective view of the packaging of the second embodiment in a demolding phase of its contents
• Figure 6 shows a sectional view of a package according to a third embodiment of the invention
• Figure 7a shows a perspective view of the packaging of the third embodiment
• FIG. 7b represents a perspective view of the packaging of the third embodiment in a demolding phase of its contents
• Figure 8 shows a sectional view of a package according to a fourth embodiment of the invention
• Figure 9a shows a perspective view of the packaging of the fourth embodiment
• Figure 9b shows a perspective view of the packaging of the fourth embodiment in a phase of demolding its contents
• Figure 10 shows a sectional view of a package according to a fifth embodiment of the invention
• Figure 11 shows a sectional view of a package according to a variant of the fifth embodiment of the invention
• Figure 12 shows a front view of a package according to a sixth embodiment of the invention
• Figure 13 shows a top view of the package according to the sixth embodiment of the invention
• Figure 14 shows a perspective view of the package according to the sixth embodiment of the invention
• Figures 15a to 15d illustrate the steps of the method of demolding the package according to the sixth embodiment of the invention.
• Figures 1 to 3 illustrate a first embodiment of a package.
• a package comprises a first main compartment 1 above a second annex compartment 2, separated by a separation membrane 3, which may be aluminum or PET.
• the first compartment consists of frustoconical side walls 4, defining upper flanges 5 on which rests a conventional closure cap 6.
• the frustoconical walls 4 further define a shoulder 7 towards the inside of the compartment, on which the membrane 3 rests.
• the latter is waterproof and guarantees an efficient and durable separation between the two compartments.
• It further comprises a fragile central portion 8 intended to allow easy breakage during demolding, which will be described later.
• the second compartment 2, of smaller volume has a frustoconical shape and a wall 9 more flexible than that of the first compartment.
• Fragile portions 8 and 10 are defined to yield under the effect of a voluntary pressure, achieved by the manual force of a child, while being strong enough not to give in during transport and storage operations.
• Figures 2a and 2b show the demolding phase of the contents of the package.
• the first operation is to remove the lid 6 and then return the package on a plate, not shown.
• Manual pressure is then performed on the wall 9 of the compartment 2, favored by the flexibility of this wall.
• This pressure causes the breaking of the fragile parts 8 and 10.
• the rupture of the fragile part 8 of the membrane 3 puts the contents of the two compartments in contact, and allows the contents 12 of the compartment 2 to descend under the effect of its weight to the compartment 1.
• This pressure also has the effect of deforming the entire membrane 3 and giving it a downward slope, which will naturally lead a liquid substance compartment 2 to the opening made and its passage to the compartment 1 to occupy a space released by the product 11 of compartment 1 which begins to slide down.
• the rupture of the fragile portion 10 causes air to enter the package which allows the gelled product of the first compartment 1 to descend naturally under the effect of its weight by sliding against the frustoconical wall 4 while the consumer gently raises the pressure. packaging vertically.
• the air inlet makes it possible to balance the inner pressure of the pack with the atmospheric pressure and to avoid the difficulties of demolding related to the unfavorable pressure forces.
• This fragile part 10 may be provided slightly stronger than the fragile part 8 in order first to obtain the rupture of the membrane 3 before that of the part 10. This prevents the substance 12 of the compartment 2 from being ejected towards the outside. by the opening made in the wall 9 under the effect of pressure.
• the previous sequence and the speed of realization of the demolding depend on the properties of the substances in the package.
• the above principle gives a satisfactory result for any combination of a relatively solid and viscous substance 11, for example a gelled substance such as a blank, with a relatively liquid substance 12, for example a jam, a syrup, a slurry, caramel, a chocolate cream, which can possibly contain pieces.
• FIG. 3 represents a variant of this first embodiment in which the means for introducing air into the packaging during demolding is no longer a fragile part of the wall 9 of the compartment 2 but a sealed cover 13 on an opening of the bottom of the package.
• the operating principle remains the same.
• the consumer presses the compartment 9 to obtain the rupture of the portion 8 of the membrane 3.
• FIGS. 4 and 5 show a second embodiment of the invention in which a piston 14 is provided in the compartment 2, connected to the bottom of the package and directed towards the membrane 3.
• the consumer realizes preferably a pressure of the compartment 2 by pressing on the bottom of the package, at the level of the connection between the wall 9 and the piston 14, to allow the lowering of the piston 14 to pierce the membrane 3.
• Figures 6 and 7 show a third embodiment of the invention, wherein the wall 9 has an opening in the bottom of the package, closed by a cover 15, connected by a connecting wire 17 to a cover 16 similarly closing an opening in the central portion of the membrane 3.
• the demolding is shown in Figures 7a and 7b.
• the consumer grasps a tab 18 fixed on the lid 15 and pulls it so as to remove the lid 15. It then continues its traction, which has the effect of tending the connecting wire 17 and then detach the lid 16 of the membrane 3.
• the two covers 15 and 16 are designed to be easily detached. For this, pre-cutting can be provided. The result obtained is then the same as in the previous modes of execution.
• Figures 8 and 9 show a fourth embodiment of the invention, wherein the wall 9 has an opening in the bottom of the package, closed by a cover 13, connected by a tab 19 to a closing cap 20 of even an opening in the central portion of the membrane 3.
• the release shown in Figures 9a and 9b, is performed in a similar manner to the previous embodiment, a traction on the cover 13 by its tab 18 causing the takeoff of the covers 13 and 20.
• Figures 10 and 11 show two variants of the fifth embodiment of the invention.
• the second compartment 2 is disposed laterally between the frustoconical lateral wall 4 and the separation membrane 3 with the first compartment 1.
• the membrane 3 comprises a fragile portion 8 intended to be broken under the effect of a pressure manually on the wall 4 of the package, at the time of demolding.
• the wall at the bottom of the compartment 1 comprises an opening closed by a lid 13 for the air inlet during the demolding operation.
• the bottom wall of the compartment 1 comprises a weakened portion 10 for this air inlet.
• the compartments may have different shapes and their walls may contain grooves for easy demolding.
• the wall 9 of the compartment 2 may have a concave shape on the bottom of the package, in order to avoid shocks on the fragile part which could deteriorate it during storage, transport ...
• the invention also relates to a method of packaging a food product to at least two substances in a package, including the manufacture of the package and its filling.
• a process may advantageously be based on a thermoforming of plastic materials such as polystyrene.
• This type of process in addition to its simplicity, has the advantage of allowing the manufacture of the packaging and its filling simultaneously.
• the essential steps of the method of manufacturing such a package are the following: a-production by thermoforming a container comprising a wall 4 in the upper part and a wall 9 in the lower part ; b-filling the lower volume of the package delimited by the bottom wall 9 by a first substance 12; c-bonding or welding a membrane 3 to separate the upper volume defined by the wall 4 of the lower volume; filling the upper volume of the package placed above the membrane 3 with a second substance 11; e-bonding or welding of a closure cap 6.
• Step a may comprise the production of a shoulder 7 at the level of the boundary between the upper wall 4 and the bottom wall 9.
• An intermediate step between steps a and b may consist in the production of a weakened part 10 in the wall 9 or the production of an opening, closed by the welding or gluing of a lid 13 or by a lid 15 connected to a second cover 16 by a wire 17.
• Step c may comprise the welding or bonding of the membrane 3 on the shoulder 7. It may furthermore comprise the step of producing a fragile portion 8 on the membrane or the welding or gluing of a lid 20 or closure by a lid 16.
• the package can be manufactured separately by any other type of packaging manufacturing method existing in the prior art before being subsequently filled with the substances 11 and 12, the membrane 3 and the lid 6 being then added when filling. This can make it possible to obtain more varied forms of packaging, as represented in FIGS. 10 and 11.
• FIGS. 12 to 15 illustrate a sixth embodiment of the invention, which differs from the preceding ones essentially in that the pressure balancing means is produced by the wall 9 of the second compartment 2.
• this wall 9 has the property of deforming to reduce sufficiently the volume of the second compartment 2 to increase the pressure of its contents, liquid 12 and possibly air, enclosed in the bottom of the package, inducing no only the rupture of the membrane 3 as in the first embodiment for example, but also the pressure equalization with the external atmospheric pressure to allow demolding.
• the wall 9 of this second compartment is in a relatively flexible material and has a bottom face of particularly suitable shape, which has a ring 21 on its circumference, on which the packaging rests in its storage position, and a convex and convex central portion 22, generally positioned above the ring 21 in the storage position, its lowest point 23 in the center of the package being substantially at the same height as the ring 21.
• This geometry allows the package can stand standing stably, without the risk of distorting the bottom of the package.
• the domed central shape 22 performs the function of pressing button during the demolding process which will be described below.
• the membrane 3 comprises a rupture line 8 in the form of a coil, made by a laser process.
• FIGS. 15a to 15d illustrate the method of demolding a food product contained in such a package, which comprises the following steps: opening of the closure cap 6, as illustrated in FIG.
• the pressure on the convex portion 22 of the bottom of the package first causes the deformation of the ring 21 in the direction of reducing the volume of the second compartment 2 and then the sudden inversion of the convex portion 22 which passes convex concave, its rounded shape then being directed towards the interior of the second compartment 2 so that its volume is significantly reduced, this second configuration being visible in FIG. 15c.
• the solution according to the invention has the following advantages: it ensures an effective separation of two food substances until their consumption;

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Packages (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=34950966

Family Applications (1)

Country Status (3)

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Family Cites Families (11)

• 2004
  • 2004-11-12 FR FR0412034A patent/FR2877920B1/fr not_active Expired - Fee Related
• 2005
  • 2005-11-08 EP EP05800311A patent/EP1809552A1/de not_active Withdrawn
  • 2005-11-08 WO PCT/IB2005/003344 patent/WO2006051383A1/fr not_active Ceased

Non-Patent Citations (1)

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