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
  • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
  • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
  • B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
  • B65D75/32—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents
  • B65D75/321—Both sheets being recessed
  • B65D75/322—Both sheets being recessed and forming one compartment
• • 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
  • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
  • B65D75/52—Details
  • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
  • B65D75/5855—Peelable seals
• • 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
  • B65D85/76—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 for cheese
• • 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
  • B65D2575/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
  • B65D2575/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by association or interconnecting two or more sheets or blanks
  • B65D2575/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
  • B65D2575/32—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents
  • B65D2575/3209—Details
  • B65D2575/3218—Details with special means for gaining access to the contents
  • B65D2575/3227—Cuts or weakening lines

Definitions

• the invention relates to a food packaging of a vegetable or dairy product, such as an individual portion of cheese, and a method of manufacturing this food packaging.
• cutlery knife, spoon
• the user uses his fingers to help himself. Eventually, the product can adhere to the walls and it is peeled off with the fingers.
• One of the objects of the invention aims to provide a food packaging, in particular for a vegetable or dairy product, allowing the user to consume the product directly in the shell without using his fingers to grasp it, with a single opening action allowing optimal product release.
• the invention relates to food packaging for a vegetable or dairy product, such as an individual portion of cheese, comprising two shells sealed to each other along a joint plane and defining an internal cavity receiving the product, the packaging being capable of being opened by peeling one shell relative to the other, the shells having peripheral edges extending in the joint plane and being in contact against one another, the flanges being sealed together, said two shells corresponding to a hollow lower shell and a hollow upper shell, each shell having a tab for peeling one shell from the other, each tab extending from one of the peripheral flanges in the joint plane and integral with the corresponding shell, the said tabs being superimposed on one another when the packaging is closed, each shell comprising, in the joint plane, a first end located at the level tabs, and a second opposite end, having formed a neck for metering the product before sealing the shells, each shell having an axis of symmetry X passing through said two ends.
• the invention is mainly characterized in that at least the upper shell is provided with a proximal pre-cut line of the second end, at least part of the upper shell being able to be separated from the lower shell by peeling peripheral edges to the pre-cut line, then by breaking the pre-cut line.
• the main idea of this invention consists in providing two shells which can be easily separated initially by peeling, then by breaking at least one of the shells (in this case the upper shell) at the level of the pre-cut line.
• This pre-cut line is located in the vicinity of the second end, that is to say in the rear part of the packaging. This line is set back as far as possible in order to offer a large opening on the product.
• the pre-cut line extends transversely to said axis X by connecting two lateral sides of the peripheral rim. This line extends symmetrically with respect to the X axis.
• the upper shell is broken all along the pre-cut line.
• the pre-cut line comprises a central folding section and two lateral breaking sections located on either side of the central folding section and joining the peripheral rim.
• the side sections are broken at the time of opening, while the central section is folded and acts as a hinge.
• the upper shell thus broken has a mobile part and a part which remains fixed in the rest of the packaging.
• the central folding section acts as a hinge between the mobile part and the fixed part.
• the mobile part is therefore pivotable with respect to the fixed part.
• the user can continue to hold the packaging by holding the lower shell and the fixed part of the upper shell together, while tasting the product.
• Peeling is conventionally achieved by pulling on the tab of the upper shell. Peeling is done along the peripheral edges up to the pre-cut line, then by continuing to pull on the tab, the two rupture sections break. Thus, in one gesture the two shells are separated. The product remains in the bottom shell. The coat is soft to avoid any sudden movement. During opening, the product therefore does not fall, and is held by the lower shell and by the fixed part of the upper shell.
• the invention also relates to a method for manufacturing a packaging as described above, comprising the following steps:
• This method also includes a step of creating the pre-cut line by pre-cutting the film to different depths along a line.
• the pre-cut is made on the flat film, before the preheating step.
• the description below is valid for both configurations.
• the first configuration shows packaging without means for gripping the product
• the second configuration shows packaging with means for gripping the product.
• Figures 1 and 4 illustrate a food packaging 1 of a vegetable or dairy product, such as an individual portion of cheese, in top view and closed.
• This packaging 1 has an axis of symmetry X, corresponding to the axis X of the previously defined trihedron.
• Packaging 1 mainly consists of two shells 2, 3 sealed to each other along the joint plane.
• the two shells 2, 3 are sealed to each other at a peelable sealing area.
• These two shells 2, 3 define an internal cavity which receives the vegetable or dairy product.
• Packaging 1 is capable of being opened by peeling one shell from the other.
• FIGs 2, 3, 5, 6 illustrate packaging 1 in the open position. Indeed, the two shells 2, 3 have been separated from each other by peeling. We can clearly see the vegetable or dairy product 4 appearing between the two shells 2, 3.
• vegetable or dairy product 4 we mean a product 4 sufficiently consistent not to spread once taken out of its packaging 1. In other words, the vegetable or dairy product 4 is not in liquid form under normal temperature and temperature conditions. pressure. Product 4 is therefore solid, or semi-solid, i.e. sufficiently viscous to hold in one piece.
• the vegetable or dairy product 4 takes the form of the internal cavity. It substantially fills the entire internal cavity of the closed package 1.
• the two shells 2, 3 correspond to a first shell 2, which will be called for convenience “upper shell”, and a second shell 3, which will be called for convenience “lower shell”.
• the two shells 2, 3 are flexible or semi-rigid.
• the two shells 2, 3 have identical shapes, so that the internal space has a volume equally distributed between the two shells 2, 3.
• the two shells 2, 3 are in different shapes.
• the internal space then has a volume that is unequally distributed between the two shells 2, 3.
• the lower shell 3 forms between one third of the overall volume and half of the overall volume of said internal space.
• each shell 2, 3 has the same cup shape.
• the cups have rims 5, 6 which form circular flanges.
• each shell 2, 3 has a peripheral rim 5, 6 which extends in the joint plane P.
• This sealing range corresponds to a closed loop, which makes it possible to seal the internal cavity with respect to the external environment.
• the two shells 2, 3 are advantageously provided in plastic material. It can be recycled plastic and/or recyclable plastic.
• the plastic material used for the manufacture of these two shells 2, 3 may comprise several layers. It may be a multilayer of different polymers.
• the material may for example have a polypropylene base material known for its natural hinge effect.
• the peel strength value will advantageously be adaptable; it will preferably be between 4 and 25 Newtons.
• each hull 2, 3 has a depth that is smaller than its length.
• the depth is measured in the plane defined by the axes X and Z, and therefore corresponds to the distance between the bottom of the hull 2, 3 and the top of the hull 2, 3 (i.e. the level of the peripheral rim 5, 6 in the joint plane P).
• the length is measured in the plane defined by the axes X and Y, therefore in the joint plane P, and corresponds to the maximum distance between two opposite points of the peripheral rim 5, 6. If the shell 2, 3 has a round section , these two points will be diametrically opposed.
• the shells 2, 3 have a circular shape.
• the shells 2, 3 are hollow, with a domed shape. This has an advantage which will be described later in the description.
• the two shells 2, 3 are sealed to each other at their peripheral edges 5, 6 brought into contact with each other. There is therefore a contact zone between the peripheral edges 5, 6 of the two shells 2, 3, defining the sealing range.
• the peripheral rim 5, 6 is extended towards the outside of the shell 2, 3 by a tongue 7, 8 of peeling.
• This tab 7, 8 extends along the axis X in the joint plane P, and is integral with the shell 2.
• this tongue 7, 8 has the shape of a rounded ear.
• This tongue 7, 8 is flat in order to be easily pinched between two fingers of a user.
• This tongue 7, 8 is also sufficiently extended in the joint plane P, to have enough grip for the fingers of the user.
• the two tabs 7, 8 are superimposed when the packaging 1 is closed.
• they Preferably, they have an identical shape.
• the tabs 7, 8 are not sealed together, so that the user can easily take them in hand to pull on them and open the packaging 1.
• the metering neck 15 Opposite the tabs 7, 8, on the X axis, is the metering neck 15 through which the product is injected into the cavity at the time of manufacture.
• At least the upper shell 2 has a pre-cut line 11 which extends substantially transversely, therefore perpendicular to the axis X, from one side of the shell 2 to the other.
• This pre-cut line 11 joins the peripheral rim 5 at the two lateral sides.
• This precut line 11 is divided into three sections, namely:
• the three sections form a single continuous line.
• this line is slightly curved.
• the curve is directed towards the metering neck 15.
• the pre-cut line 11 is made in the vicinity of the metering neck 15, on the upper shell 2.
• each shell 2, 3 has a front part with a first end located at the level of the tabs 7, 8, and a rear part with an opposite second end located at the level of the metering neck 15.
• the axis of symmetry X passes through both ends.
• the precut line 11 is located in the rear part of the hull. It is therefore proximal to the second end.
• the folding section 11b is proximal to the second end and is perpendicular to the X axis.
• the folding section 11b is located more than two-thirds of the length of the shell.
• the pre-cut line is located at 35.5mm, i.e. 7.5mm from the second end.
• Each rupture section 11a, 11c starts from the folding section 11b and joins the peripheral rim 5, and crosses the entire width of the peripheral rim 5 to the edge. Thus, each rupture section 11a, 11c crosses the sealing area.
• the two parts 2a, 2b remain attached to each other via the central folding section 11b which has not broken.
• This folding section 11b acts as a hinge.
• the mobile part 2a can pivot relative to the fixed part 2b.
• the lower shell 3 has no pre-cut, and continues to support the product 4.
• the movable part 2a of the upper shell 2 is large enough to correctly release the product 4, and the consumer can come and eat the product directly in the lower shell 3. If necessary, he can press on the bottom of the lower shell 3 to make the product take off from the wall and raise it.
• the lower shell 3 also has a pre-cut line 11.
• the orientation of the shells no longer counts.
• the terms “lower” and “upper” are just mentioned for clarity in order to distinguish between the two shells. They could be replaced by the terms “first” and “second”.
• the product 4 is even better released, and only a small part remains held in the two fixed parts 2b, 3b of the shells 2, 3.
• the two remaining fixed parts 2b, 3b form a conical space receiving the end of the product 4.
• This conical space comes from the curved shape of the shells 2, 3.
• This conical space has the effect of allowing easy removal of the end of the product. Indeed, if the hulls were flat, the space would not be conical, and the end of the product could remain stuck in the space.
• the flared, conical shape makes it easy to extract, or somehow "unmold", the end of the product.
• the fold line 11b represents less than one third of the continuous curve. The narrower the hinge, the easier the access to product 4.
• At least 80% of the product is released when the two shells 2, 3 are broken.
• 85% of the product is released from its packaging 1.
• the user can thus taste the product 4 without needing to touch it with his fingers.
• the pre-cut line 11 is made in such a way that the shells 2, 3 break as soon as the peripheral edges 5, 6 are peeled off at the passage of the break sections 11a, 11c.
• the downstream part of the peripheral edges 5, 6, that is to say from the rupture sections 11a, 11c to the metering neck 15, remains sealed once the packaging 1 has been opened. This is not problematic, because the remaining product part is easily extractable as seen above, unlike the prior art.
• the gripping means 10 may consist of a stick, which is introduced between the shells 2, 3 at the time of manufacture and before the dosage of the product.
• the gripping means 10 has a part housed in the internal cavity of the shells 2, 3, and on which the product 4 is secured, and an external part which comes out of the shells 2, 3 and is located between the two tabs 7, 8.
• peripheral edges 5, 6 are sealed on the gripping means 10 to ensure the tightness of the internal cavity, when the packaging 1 is closed.
• the tabs 7, 8 for their part are not sealed to the gripping means 10, so that the user can easily separate each tab 7, 8 from the gripping means 10 and pull on it to open the packaging 1 while holding the gripping means 10.
• the user can thus taste the product 4 without needing to touch it with his fingers.
• the invention also relates to a method of manufacturing a packaging 1 for food, in particular for a vegetable or dairy product 4, for example the packaging 1 described above, from at least one reel of plastic film 12 and which comprises the following steps:
• This method includes a step of creating the pre-cut line 11 by pre-cutting the film 12 to different depths along a line.
• the pre-cut line 11 can be made on a flat film 12 as illustrated in , or on a formed film 12, or on the formed shells, on the formed or welded necks. These pre-cut lines 11 are separated by a pitch P.
• the technologies used may vary and be of the mechanical type (knife), of the electromechanical type (ultrasound), or else of the laser type, or any other scarifying process.
• Each pre-cut line 11 can be straight or follow a path adapted to the best desired opening functionality.
• the line is straight at both ends, which coincide with the peripheral edges, and rounded between the ends to approach the back of the packaging.
• the pre-cut line 11 is made on the flat film 12, before the preheating step.
• account is taken of the future thinning of the film 12 due to the stretching carried out during the thermoforming of the shells 2, 3. This makes it possible to avoid the risk of rupture of the thinned film 12 at the level of the pre-cut line 11, before handling the packaging 1 by the user for opening.
• the adjustment of the pre-cuts on the continuous or interrupted aspect as well as on the depth is defined by the programming of the pre-cut tools. We can therefore adjust the place where we pre-cut, on what length and depth. For this we can take a reference on the shape of the shells or on the graphics carried by the film.
• the pre-cut line 11 comprises two deep lateral zones corresponding to the rupture sections 11a, 11c, and a central shallower zone corresponding to the folding section 11b.
• the rupture sections 11a, 11c can comprise a very deep zone at the level of the peripheral edges 5, 6 (where the thickness is greater once the shells have been formed), followed by a shallower zone at the level of the curved part of the shell 2, 3 (where the thickness is thinner once the shells have been formed).
• the central folding section 11b is intact, and has no pre-cut. There is therefore a discontinuity in the pre-cut at the level of the central section 11b.
• the pre-cut line 11 can also be produced in two stages, with the creation of very deep zones upstream of the preheating step, and the creation of shallower zones after the forming step or the metering step.
• the method can use two films 12 from two different reels superimposed thereafter or a single reel folded on itself which brings a very precise level of registration between the two faces. printed.
• the centering of the shells is ensured at the forming station where the two parts are obtained simultaneously and centered, before the sealing stage.
• the films 12 are preheated before the sealing step.
• the sealing is carried out by heat sealing.
• the seal is used to hermetically close the packaging 1.
• the seal allows controlled and adjustable opening, the force of which can be measured (Peel Force).
• the welding of the dosing neck 15, or other parts of the packaging 1, can be carried out by heat sealing. Welding gives a definitive and impossible to separate assembly, therefore to be opened, except to destroy it.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Composite Materials (AREA)
• Packages (AREA)
• Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
• Dairy Products (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=77821927

Family Applications (1)

Country Status (6)

Families Citing this family (1)

Family Cites Families (4)

• 2021
  • 2021-08-17 FR FR2108727A patent/FR3126220B1/fr active Active
• 2022
  • 2022-08-04 WO PCT/EP2022/072026 patent/WO2023020857A1/fr not_active Ceased
  • 2022-08-04 KR KR1020247008038A patent/KR20240051960A/ko not_active Ceased
  • 2022-08-04 JP JP2024508700A patent/JP2024529701A/ja active Pending
  • 2022-08-04 EP EP22761181.1A patent/EP4387903B1/de active Active
  • 2022-08-04 CN CN202280058386.4A patent/CN117916168A/zh active Pending

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