Food packaging for a plant or dairy product and its manufacturing method

Abstract

This invention relates to a food package (1) for vegetables or dairy products (4), such as single-serving cheese. The food package includes two shell portions (2, 3) sealed together and defining an inner cavity for holding the product. The package can be opened by peeling one shell portion from the other. The shell portions have sealed outer peripheral edges (5, 6). The two shell portions correspond to a hollow lower shell portion (3) and a hollow upper shell portion (2). Each shell portion has a peeling lug (7, 8) for peeling one shell portion from the other. At least the upper shell portion is provided with a pre-cut line (11) located at the rear portion of the package. The upper shell portion can be detached from the lower shell portion by peeling the outer peripheral edge down to the pre-cut line and then breaking the pre-cut line.

Description

Technical Field

[0001] This invention relates to a food packaging for vegetables or dairy products (e.g., single servings of cheese), and a method for manufacturing the food packaging. Background Technology

[0002] Cheese products made from ingredients are typically packaged in aluminum foil. Rigid or semi-rigid plastic packaging or wax packaging are also available.

[0003] Known packaging comprises a single-dose container formed by two shell halves made of thermoplastic material, the two shell halves being sealed along their outer perimeter. The seal ensures complete adhesion of the outer perimeter, guaranteeing the packaging is waterproof. These shell halves are peelable, meaning the outer perimeter can be separated by applying a tensile force perpendicular to the sealing plane without causing the packaging to break or break.

[0004] Once the packaging has been opened, users can use utensils (knife, spoon) to eat the cheese product. If the cheese product is sufficiently intact to not spill once removed from its packaging, users can use their fingers to eat it. Eventually, the product may stick to the sides and be removed with fingers.

[0005] To avoid soiling fingers, it was suggested that the cheese product be placed on a grip stick so that once the shell is opened, the cheese product can be eaten without touching it. The insertion stick complicates the packaging manufacturing process.

[0006] It also proposes a flat, peelable shell that folds horizontally in half when opened, allowing the first half of the shell to release half of the product, while the second half remains sealed and can be held by the user, preventing them from getting their fingers dirty. A drawback is that some products may sometimes get stuck in the second half of the shell.

[0007] One of the objectives of this invention is to provide a food packaging specifically for vegetables or dairy products that allows users to consume the product directly from the shell through a single opening action that optimally releases the product, without having to grasp the product with their fingers. Summary of the Invention

[0008] Therefore, the present invention relates to a food packaging for vegetables or dairy products, such as single-serving cheese. The food packaging includes two shell portions that are sealed to each other along a mating plane and define an inner cavity for holding the product. The packaging can be opened by peeling one shell portion from the other. Each shell portion has outer peripheral edges extending in the mating plane and contacting each other, the edges being sealed together. The two shell portions correspond to a hollow lower shell portion and a hollow upper shell portion. Each shell portion has a lug for peeling one shell portion from the other. Each lug extends from one of the outer peripheral edges in the mating plane and is integral with the corresponding shell portion. The lugs overlap each other when the packaging is closed. Each shell portion includes a first end located at the lug and an opposing second end in the mating plane. The second end forms a neck for feeding the product before sealing the shell portion. Each shell portion has an axis of symmetry passing through the two ends.

[0009] The main feature of the present invention is that at least the upper shell portion is provided with a pre-cut line near the second end portion, and at least a portion of the upper shell portion can be separated from the lower shell portion by peeling the outer peripheral edge backward to the pre-cut line and then breaking the pre-cut line.

[0010] The main objective of this invention is to provide two shell portions that can be easily separated first by peeling and then by breaking at least one shell portion (in this case, the upper shell portion) at a pre-cut line. This pre-cut line is located near the second end, i.e., at the rear portion of the package. This line is positioned as far back as possible to provide a wider opening for the product.

[0011] According to the invention, the pre-cut line extends transversely to the axis X and connects the two lateral sides of the outer periphery. The line extends symmetrically with respect to the axis X.

[0012] According to one possible configuration of the invention, the upper shell is broken along the entire pre-cut line.

[0013] According to another preferred embodiment of the invention, the pre-cut line includes a central folded section and two lateral break sections located on either side of the central folded section and connecting to the outer periphery. In this case, only the lateral sections break upon opening, while the central section is folded and serves as a hinge.

[0014] The broken upper shell has a movable portion as well as a portion that remains fixed within the rest of the packaging.

[0015] The central fold section serves as a hinge between the movable and fixed parts. Therefore, the movable part can pivot relative to the fixed part.

[0016] Due to the fractured segment, a larger area close to the product can be released compared to existing technologies, where only the fold line defines the area close to the product.

[0017] This means that not just half of the products are accessible, but more than three-quarters are accessible.

[0018] Users can continue to hold the packaging while enjoying the product by keeping the lower and upper shell parts together.

[0019] Peeling is typically accomplished by pulling on the lugs of the upper shell. Peel along the outer perimeter until the pre-cut line, then continue pulling on the lugs to break the two segments. The two shells can separate in a single action. The product remains in the lower shell. Peeling is gentle to prevent any sudden movement. When opened, the product will not fall out and is held in place by the retaining parts of the lower and upper shells.

[0020] Various embodiments of the present invention that can be used together or separately:

[0021] - These two shell sections have a dome shape, so that when the packaging is opened, the product is held by the tapered ends of the two shell sections. This tapered shape makes the product very easy to remove when tasting. In the prior art, half of the product is captured by the ends of two flat shell sections. Unlike the prior art, in this application, most of the product is directly accessible, and the ends of the product can be easily detached from the ends of the shell sections. The folded section is centered relative to and oriented substantially perpendicular to the axis of symmetry.

[0022] - The pre-cut line is curved: the pre-cut line follows the curved profile of the shell.

[0023] - The folded section is less than one-third of the pre-cut line.

[0024] The folded sections form a tight hinge, making the product easier to access once the packaging is opened.

[0025] The lower shell, like the upper shell, has pre-cut lines. This allows the two shells to be peeled off first along their outer perimeter, and then simultaneously broken along the pre-cut lines that coincide at the outer perimeter. This makes opening the packaging easier. If both shells break, the product will not fall out because it remains secured within the two shells.

[0026] - After opening the two shells by peeling, at least 80% of the product is released without touching the shells. Preferably, 85% of the product is released.

[0027] - The packaging includes a device for clamping the product, which is inserted between two shell portions and includes:

[0028] - The inner part, located within the inner cavity of the packaging and secured to the product,

[0029] - The outer part extends between the two lugs.

[0030] - The two housings are sealed together at a peelable sealing area, which is defined by the contact area between the outer peripheral edges of the two housings.

[0031] - Each fractured segment passes through the sealed area.

[0032] - The depth of each shell is less than the length of the shell.

[0033] The present invention also relates to a method for manufacturing the packaging as described above, the method comprising the following steps:

[0034] - Preheat both plastic films;

[0035] - Two membranes are sealed along the mating plane on the sealing area to define two shells. The sealing area intersects with the feed neck, which is designed to allow the two shells to be filled.

[0036] - The shell is thermoformed to form the inner cavity and to create the feed neck;

[0037] - Vegetables or dairy products are fed through the feeding neck to fill the inner cavity formed between the shells;

[0038] - Preheat the edge of the neck before welding;

[0039] - Cut to define the outline of the shell to customize the shell into its final shape;

[0040] The method also includes the step of creating pre-cut lines by pre-cutting the membrane to different depths along the lines.

[0041] Preferably, the pre-cutting is performed on the flat film prior to the preheating step. Attached Figure Description

[0042] Other features and advantages of the invention will become apparent from the following detailed description, and with reference to the accompanying drawings, in order to understand it:

[0043] [ Figure 1 ] Figure 1 This is a top view of the closed package of the first construction of the present invention;

[0044] [ Figure 2 ] Figure 2 This is a perspective view of the front of an open package according to the first construction of the present invention;

[0045] [ Figure 3 ] Figure 3 This is a perspective view of the rear of an open package according to the first construction of the present invention;

[0046] [ Figure 4 ] Figure 4 This is a top view of the closed package of the second construction of the present invention;

[0047] [ Figure 5 ] Figure 5 This is a perspective view of the front of the opened package of the second construction of the present invention;

[0048] [ Figure 6 ] Figure 6 This is a perspective view of the rear of the opened package of the second construction of the present invention;

[0049] [ Figure 7 ] Figure 7 A roll of plastic film with pre-cut sections is shown;

[0050] [ Figure 8 ] Figure 8 The pre-cutting performed within the thickness of the plastic film is shown;

[0051] [ Figure 9 ] Figure 9 A variation of pre-cutting performed within the thickness of the plastic film is shown. Detailed Implementation

[0052] In the remainder of this specification, without reference to Earth's gravity, the following will be used: Figure 1 and Figure 4 The vertical, longitudinal, and transverse directions are indicated by the trihedrons “X, Y, Z”. We also define a horizontal plane extending longitudinally and laterally, which will be referred to as the mating plane P.

[0053] The following description applies to both configurations. The first configuration shows packaging without a device for clamping the product, while the second configuration shows packaging with a device for clamping the product.

[0054] Figure 1 and Figure 4 A closed food package 1 for vegetables or dairy products (e.g., single servings of cheese) is shown as viewed from above. The package 1 has an axis of symmetry X corresponding to the axis X of the coordinate system defined above.

[0055] Package 1 mainly consists of two shell parts 2 and 3 sealed together along a mating plane. The two shell parts 2 and 3 are sealed together at a peelable sealing area.

[0056] These two shell parts 2 and 3 define the inner cavity for receiving vegetables or dairy products.

[0057] Package 1 is designed to be opened by peeling one shell from the other.

[0058] Figure 2 , Figure 3 , Figure 5 and Figure 6 The package 1 is shown in the open position. In fact, the two shells 2 and 3 have been separated from each other by peeling. Vegetables or dairy products 4 are clearly visible between the two shells 2 and 3.

[0059] Vegetables or dairy products 4 are defined as products 4 that are sufficiently continuous to prevent spillage from their packaging 1. In other words, vegetables or dairy products 4 are not in liquid form under normal temperature and pressure conditions. Therefore, product 4 is a solid or semi-solid, i.e., the product is viscous enough to remain intact.

[0060] Vegetables or dairy products 4 are shaped like inner chambers. The vegetables or dairy products essentially fill the entire inner chamber of the closed package 1.

[0061] More specifically, the two shell portions 2 and 3 correspond to the first shell portion 2 and the second shell portion 3. For convenience, the first shell portion will be referred to as the "upper shell portion" and the second shell portion will be referred to as the "lower shell portion".

[0062] The two shell sections 2 and 3 are flexible or semi-rigid.

[0063] In the structure shown, the two shells 2 and 3 have the same shape, such that the internal space has a volume that is evenly distributed between the two shells 2 and 3.

[0064] In other configurations, not shown but forming part of the invention, the two shell portions 2 and 3 are presented in different forms. Therefore, the internal space is a volume unevenly distributed between the two shell portions 2 and 3. Preferably, the lower shell portion 3 forms between one-third and half of the total volume of the internal space.

[0065] In the illustrated configuration, the two shell portions 2 and 3 have identical cup-shaped forms. The cup-shaped portions have edges 5 and 6 that form an annular neck. Therefore, each shell portion 2 and 3 has an outer peripheral edge 5 and 6 extending in the mating plane P.

[0066] When package 1 is closed, the two outer perimeters 5 and 6 overlap and seal together. This defines a sealing area. This sealing area corresponds to the closing ring, which allows the internal chamber to be sealed relative to the external environment.

[0067] Advantageously, the two shell parts 2 and 3 are made of plastic. The plastic can be recycled plastic and / or recyclable plastic. For example, the plastic material used to manufacture the two shell parts 2 and 3 may include multiple layers. The plastic material may be multiple layers of different polymers.

[0068] For example, the matrix material could be polypropylene, which is well known for its natural bonding effect.

[0069] Advantageously, the peel force value is adjustable, preferably between 4 Newtons and 25 Newtons.

[0070] In the illustrated configuration, the depth of each shell portion 2, 3 is less than its length. The depth is measured in the plane defined by axes X and Z, and therefore corresponds to the distance between the bottom and top of shell portions 2, 3 (i.e., at the level of the outer perimeter along edges 5, 6 in the mating plane P). The length is measured in the plane defined by axes X and Y (i.e., in the mating plane P), and corresponds to the maximum distance between two opposite points along the outer perimeter along edges 5, 6. If shell portions 2, 3 have a circular cross-section, these two points would be opposite each other along the diameter.

[0071] When the depth of the shell is less than the length of the shell, this means that product 4 is not embedded in the shell, but is accessible over a wide area.

[0072] For example, the shell parts 2 and 3 are circular in shape.

[0073] Preferably, shell portions 2 and 3 are hollow and have a dome shape. This has advantages that will be described later in the specification.

[0074] The two shell parts 2 and 3 are sealed together at their outer peripheral edges 5 and 6, with the outer peripheral edges of the shell parts in contact with each other. Therefore, there is a contact area between the outer peripheral edges 5 and 6 of the two shell parts 2 and 3, and the contact area defines the sealing area.

[0075] For each shell portion 2, 3, the outer peripheral edges 5, 6 extend toward the outside of the shell portion 2, 3 via stripping lugs 7, 8. The lugs 7, 8 extend along the axis X in the mating plane P and are integrally formed with the shell portion 2.

[0076] In the example shown, the protruding ears 7 and 8 are shaped like round ear parts.

[0077] The lugs 7 and 8 are flat, allowing them to be easily clamped between two of the user's fingers. The lugs 7 and 8 also extend sufficiently within the mating plane P to allow for adequate gripping by the user's fingers.

[0078] When package 1 is closed, the two lugs 7 and 8 are stacked.

[0079] Preferably, the shapes of the lugs are the same.

[0080] The lugs 7 and 8 are not sealed together, allowing users to easily hold the lugs in their hands to pull them and open the packaging 1.

[0081] Along axis X, opposite to lugs 7 and 8, is feed neck 15, through which the product is injected into the chamber during manufacturing.

[0082] According to the invention, at least the upper shell portion 2 has a pre-cut line 11 that extends generally laterally (i.e., perpendicular to the axis X) from one side of the shell portion 2 to the other. The pre-cut line 11 engages with the outer peripheral edge 5 on both sides.

[0083] The pre-cut line 11 is divided into three segments, namely:

[0084] -Central folded section 11b;

[0085] - Two lateral fracture segments 11a and 11c are located on both sides of the central segment 11b.

[0086] The three segments form a single continuous line.

[0087] Preferably, the line is slightly curved. The curve is oriented toward the feed neck 15.

[0088] The pre-cut line 11 is formed on the upper shell 2 near the feed neck 15.

[0089] Each shell portion 2, 3 can be considered to have a front portion and a rear portion, the front portion having a first end located at lugs 7, 8, and the rear portion having a second opposite end located at the feed neck 15. The axis of symmetry X passes through both ends.

[0090] The pre-cut line 11 is located at the rear portion of the shell. Therefore, the pre-cut line is close to the second end.

[0091] More specifically, the folded segment 11b is close to the second end and perpendicular to the axis X.

[0092] More precisely, the folded section 11b is positioned at more than two-thirds of the length of the shell.

[0093] For example, for a shell portion with a length of 43 mm (including the edge), the pre-cut line is located at 35.5 mm, which is 7.5 mm from the second end.

[0094] Each fracture segment 11a, 11c begins from the folded segment 11b and joins with the outer perimeter 5, extending across the entire width of the outer perimeter 5 to the boundary. Thus, each fracture segment 11a, 11c passes through the sealing area.

[0095] Therefore, when a user wants to open packaging 1, he pulls on the lug 8 of the upper shell 2, causing shells 2 and 3 to peel back to the fracture segments 11a and 11c, which break under tensile force. The peeling then stops, and the upper shell 2 is divided into two parts:

[0096] - Movable part 2a, the movable part moves away from product 4.

[0097] - and fixing part 2b, which remains in place and contacts product 4.

[0098] The two parts 2a and 2b are held together by an unbroken central folded section 11b. This folded section 11b serves as a hinge. In this way, the movable part 2a can pivot relative to the fixed part 2b.

[0099] Therefore, all products 4 that have come into contact with the movable part 2a are freely accessible.

[0100] According to one possible example of the invention, the lower shell 3 is not pre-cut and continues to support the product 4. The movable portion 2a of the upper shell 2 is large enough to properly release the product 4, allowing the consumer to consume the product directly from the lower shell 3. If necessary, the bottom of the lower shell 3 can be pressed to lift the product away from the wall.

[0101] According to another possible example of the invention, as shown, the lower shell portion 3 also has a pre-cut line 11.

[0102] Preferably, the pre-cut line of the lower shell portion is the same as the pre-cut line of the upper shell portion 2. In this case, the orientation of the shell portions is no longer important. The terms "lower" and "upper" are mentioned only for clarity to distinguish the two shell portions. The terms "lower" and "upper" can be replaced by "first" and "second" respectively.

[0103] Therefore, when the user pulls the lugs 7 and 8, the shell parts 2 and 3 are peeled off until the upper shell part 2 and the lower shell part 3 break at the same time.

[0104] Product 4 is better released, and only a small portion remains in the two fixed portions 2b and 3b of the shell 2 and 3.

[0105] The remaining two retaining portions 2b and 3b form a tapered space that holds the end of product 4. This tapered space is formed by the dome shape of the shell portions 2 and 3. This tapered space allows for easy removal of the product end. If the shell portions were flat, the space would not be tapered, and the product end might get stuck in the space. The gradually widening tapered shape allows the product end to be easily removed, or rather, "unclamped."

[0106] Preferably, the fold line 11b is less than one-third of the continuous curve. The narrower the hinge, the easier it is to approach product 4.

[0107] Preferably, when the two shell sections 2 and 3 break, at least 80% of the product is released.

[0108] Preferably, 85% of the product is released from the product packaging 1.

[0109] The remaining 15% contained in the fixed portions 2b and 3b is easily removed.

[0110] Therefore, users can taste product 4 without touching it with their fingers.

[0111] The pre-cut line 11 is designed such that once the outer periphery edges 5, 6 are peeled away to the portion through which the fracture segments 11a, 11c pass, the shell portions 2, 3 break. Thus, once the package 1 is opened, the downstream portion of the outer periphery edges 5, 6 (i.e., from the fracture segments 11a, 11c to the feed neck 15) remains sealed. This is not a problem because, unlike prior art, the remaining portion of the product can be easily removed, as shown above.

[0112] exist Figures 1 to 3 In the first configuration shown, there is no device for clamping the product.

[0113] exist Figures 4 to 6 In the second configuration shown, a device 10 for clamping the product is added. This is the only difference between the two configurations.

[0114] In this case, the clamping device 10 may consist of a bar that is inserted between the shell portions 2 and 3 during manufacturing and before the product is fed.

[0115] The clamping device 10 has a portion that is housed in the inner cavity of the housing portions 2 and 3 and on which the product 4 is fixed, and an outer portion that protrudes from the housing portions 2 and 3 and is located between the two lugs 7 and 8.

[0116] The outer perimeters 5 and 6 are sealed with the clamping device 10 to ensure that the inner chamber is sealed when the package 1 is closed.

[0117] The lugs 7 and 8 are not sealed to the clamping device 10, allowing the user to easily move each lug 7 and 8 away from the clamping device 10 while holding the clamping device 10, and pull the lugs to open the package 1.

[0118] Finally, regardless of the construction chosen, the user can enjoy product 4 without touching it with their fingers.

[0119] The present invention also relates to a method for manufacturing food packaging 1 from at least one roll of plastic film 12, the food packaging being particularly suitable for vegetables or dairy products 4, such as the packaging 1 described above, the method comprising the following steps:

[0120] - Preheat the two plastic films 12;

[0121] - The two membranes 12 are sealed along the mating plane on the sealing area to define the two shells 2 and 3. The sealing area intersects with the feed neck 15, which is designed to allow the two shells 2 and 3 to be filled.

[0122] -Hot-forming of shell parts 2 and 3 to form an inner cavity, creating feed neck 15;

[0123] - Vegetables or dairy products 4 are fed through the feeding neck 15 to fill the inner cavity formed between the shells 2 and 3;

[0124] - Preheat the edge of the neck 15 and then weld it;

[0125] - Cut to define the outline of shell parts 2 and 3, in order to customize the shell parts into the final shape of the shell parts (e.g. Figure 7 (As shown by the dashed line in the image).

[0126] These steps are preferably sequential, but they can also be performed in different orders.

[0127] The method includes the step of creating a pre-cut line 11 by pre-cutting the membrane 12 to different depths along the line.

[0128] Pre-cut line 11 can be manufactured in, for example Figure 7 These pre-cut lines 11 are either formed on the flat film 12, or on the shaped film 12, or on the shaped shell portion, shaped or welded neck. They are separated by a spacing P.

[0129] The technology used to manufacture the pre-cut line 11 can be different and can be a mechanical (blade) method, an electromechanical (ultrasonic) method, a laser method, or any other scribing method.

[0130] Each pre-cut line 11 can be straight or along a path suitable for the optimal opening function required. Here, the line is straight at the two ends coinciding with the outer perimeter and rounded between the ends to approach the rear of the package.

[0131] Preferably, the pre-cut line 11 is formed on the flat film 12 prior to the preheating step. When pre-cutting is performed on the flat film 12, future thinning of the film 12 due to stretching performed during the thermoforming of the shell portions 2 and 3 is taken into account. This makes it possible to avoid the risk of the thinned film 12 breaking at the pre-cut line 11 before the user processes the package 1 to open the package.

[0132] By programming the pre-cutting tool, the continuity, interruption, and depth of the pre-cut can be adjusted. Therefore, the position, length, and depth of the pre-cut can be adjusted. For this purpose, the shape of the shell or a pattern on the membrane can be used as a guide.

[0133] Depending on the depth of the pre-cut, areas are obtained that are more or less brittle and therefore more or less prone to fracture, or simply prone to folding. The greater the depth, the more easily the section fractures.

[0134] To obtain the folded segment 11b, shallow pre-cutting is performed, or the pre-cutting line is made discontinuous.

[0135] like Figure 8 As shown, the pre-cut line 11 includes two deep lateral regions corresponding to the fracture segments 11a and 11c and a shallow central region corresponding to the folded segment 11b.

[0136] like Figure 9 As shown, the fractured segments 11a and 11c may include very deep regions at the outer periphery edges 5 and 6 (the thickness of which is greater once the shell is formed), followed by shallow regions at the dome portions of the shells 2 and 3 (the thickness of which is thinner once the shell is formed). Furthermore, the central folded segment 11b is complete and without pre-cutting. Therefore, the pre-cutting at the central segment 11 is discontinuous.

[0137] When the user opens the shell, the very deep areas break first, and the breakage easily spreads to shallower areas.

[0138] The pre-cut line 11 can also be manufactured in two stages, wherein a very deep area is manufactured before the preheating step, and a shallower area is manufactured after the forming step or the feeding step.

[0139] To form the lower shell 3 and the upper shell 2, the method can use two films 12 obtained from two different rolls of film subsequently stacked, or two films obtained from a single roll of film folded itself, resulting in very precise alignment between the two printed surfaces. The shells are centered at the forming station, where, prior to the sealing step, both parts are simultaneously obtained and centered. Preferably, the film 12 is preheated prior to the sealing step.

[0140] Preferably, the sealing is performed by heat sealing.

[0141] A seal is used to airtightly close a package. A seal allows for controlled and adjustable opening, and the strength (peel force) of the seal can be measured.

[0142] Welding of the feed neck 15 or other parts of the package 1 can be performed by heat sealing. Welding creates a final assembly that cannot be separated and therefore cannot be opened unless the final assembly is damaged.

[0143] The constructions shown in the accompanying drawings are merely possible and not limiting examples of the invention. Rather, the invention includes variations in shapes and designs that can be conceived by those skilled in the art.

Claims

1. A food package (1) for vegetables or dairy products (4), the food package comprising two shell portions (2, 3) that are sealed to each other along a mating plane (P) and define an inner cavity for holding the vegetables or dairy products (4), the food package (1) being openable by peeling one shell portion from the other, the shell portions (2, 3) having outer peripheral edges (5, 6) extending in the mating plane (P) and contacting each other, the outer peripheral edges (5, 6) being sealed to each other, the two shell portions (2, 3) corresponding to a hollow lower shell portion (3) and a hollow upper shell portion (2), each Each shell portion (2, 3) has a peeling lug (7, 8) for peeling one shell portion from another shell portion. Each lug (7, 8) extends from one of the outer peripheral edges (5, 6) in the mating plane (P) and is integral with the corresponding shell portion (2, 3). The lugs (7, 8) overlap each other when the food package (1) is closed. Each shell portion (2, 3) includes a first end located at the lug (7, 8) and an opposite second end in the mating plane (P). Each shell portion (2, 3) has an axis of symmetry (X) passing through the first end and the second end. Its features are, At least the upper shell portion (2) is provided with a pre-cut line (11) near the second end, and at least a portion of the upper shell portion (2) can be separated from the lower shell portion (3) by peeling the outer periphery (5, 6) backward to the pre-cut line (11) and then breaking the pre-cut line (11).

2. The food packaging (1) according to claim 1, characterized in that, The pre-cut line (11) extends transversely to the axis of symmetry (X) and connects the two lateral edges of the outer peripheral edge (5).

3. The food packaging (1) according to claim 1 or 2, characterized in that, The pre-cut line includes a central folded section (11b) and two lateral fracture sections (11a, 11c), which are located on both sides of the central folded section (11b) and connected to the outer peripheral edge (5).

4. The food packaging (1) according to claim 3, characterized in that, The central folded section (11b) is centered relative to the axis of symmetry (X) and oriented perpendicular to the axis of symmetry.

5. The food packaging (1) according to claim 3, characterized in that, The central folded section (11b) is less than one-third the size of the pre-cut line (11).

6. The food packaging (1) according to claim 1 or 2, characterized in that, The lower shell (3) is also provided with a pre-cut line (11) in accordance with the example of the upper shell (2).

7. The food packaging (1) according to claim 6, characterized in that, After the two shells (2, 3) are opened by peeling, at least 80% of the vegetables or dairy products (4) are released without touching the shells (2, 3).

8. The food packaging (1) according to claim 1 or 2, characterized in that, The food packaging includes a device (10) for holding the vegetables or dairy products, the device being inserted between the two shell portions (2, 3) and comprising: -Inner portion, which is located in the inner cavity of the food packaging (1) and fixed to the vegetable or dairy product (4). - The outer portion extends between the two lugs (7, 8).

9. The food packaging (1) according to claim 1 or 2, characterized in that, The two shell sections (2, 3) have a dome shape.

10. The food packaging (1) according to claim 1, characterized in that, The dairy product is a single serving of cheese.

11. A method for manufacturing food packaging (1) according to any one of the preceding claims, the method comprising the following steps: - Preheat the two plastic films (12); - The two plastic films (12) are sealed along the mating plane (P) on the sealing area to define the two shells (2, 3), the sealing area intersecting with the feed neck (15), the feed neck being designed so that the two shells (2, 3) can be filled; - The shell portion (2, 3) is thermoformed to form an inner cavity, thereby creating the feed neck (15). - The vegetables or dairy products (4) are fed through the feeding neck (15) to fill the inner cavity formed between the shell portions (2, 3); - The edge of the feed neck (15) is preheated and then welded; - Cut to define the outline of the shell portion (2, 3) to customize the shell portion into the final shape of the shell portion; The method is characterized by further comprising the step of manufacturing the pre-cut line (11) by pre-cutting the plastic film (12) to different depths.

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