RU2594864C1 - Sealed package - Google Patents

Abstract

FIELD: packaging industry.

SUBSTANCE: hermetically sealed package contains a volume for storage of the content and at least one openable tightly sealed area bordering on at least one side with the edge of the package, with the first and the second ends. Openable tightly sealed area includes the first weakened line extending from the first point of the sealed area inside the first end to the second point of the sealed area located on the inner side of the second end. Openable tightly sealed area includes at least one additional weakened line.

EFFECT: group of inventions ensures reliable and without gaps opening of the container.

26 cl, 5 dwg

Description

The present invention relates to sealed packaging and a method for packaging an article.

Packaging intended for chips, nuts and confectionery products is usually made of film, thin, flexible, fairly impermeable wrapping materials. The film may be provided as a single sheet of wrapping material, for example, when the film is provided in the form of a pipe, or when the film is folded or formed to form a package. Alternatively, the film may be provided in the form of two separate sheets of wrapping material. The film is positioned so as to form a volume for storing the contents of the package and have at least one hermetically sealed area on the edge of the package. The film provides the walls of the storage volume, and the hermetically sealed area is a laminate of the two extreme parts of the film. When the hermetically sealed area is delaminated, it provides an opening in the volume for storing the package. The hermetically sealed area can be delaminated by pulling the packaging walls in different directions. Typically, such a package has more than one hermetically sealed area, but only one hermetically sealed area is marked with visual cues, like an openable hermetically sealed area. Such a hermetically sealed area is referred to herein as an “openable hermetically sealed area”. In some embodiments, the package may be formed from a single sheet of substantially rectangular wrapping material by folding and subsequently forming three hermetically sealed areas. In some embodiments, the package may be formed from two sheets of a substantially rectangular wrapping material by forming four hermetically sealed areas.

Packaging for confectionery products usually contains a through hole in the opening hermetically sealed area, which allows you to hang the package on the rail and put it up for sale. Since the through hole is in the openable hermetically sealed area, the through hole does not violate the hermetically sealed package, and the contents of the package located in the main body of the package inside the openable hermetically sealed area are not exposed to the external environment. An example of such a through hole is Euroslot. The presence of a through hole in the openable hermetically sealed area may cause difficulties in opening the package as described above. During opening, the through hole interferes with the delamination process and may result in incomplete opening of the package or the formation of an incorrect opening. In addition, violation of the delamination process may require the consumer to apply more force to the package, as a result of which the package may break and its contents may crumble.

EP 2360104 A2 describes a hermetically sealed package containing a Euroslot slot for hanging and one weakened line located between the inner edge of the hermetically sealed area and Euroslot. Such an efficient arrangement provides the advantages described in EP 2360104 A2. However, the inventors have invented useful improvements.

The provision of a hermetically sealed package comprising a through hole in an openable hermetically sealed area that can be effectively opened despite having a through hole in an openable hermetically sealed area is an object of embodiments of the present invention.

In accordance with a first aspect of the present invention, there is provided a hermetically sealed package comprising a volume for storing contents and at least one openable hermetically sealed area, a hermetically sealed area bordering at least one side with an edge of the package having a first and second end; moreover, the openable hermetically sealed area contains a first weakened line, which runs from the first point of the hermetically sealed area inside the first end to the second point of the hermetically sealed area located on the inner side of the second end; moreover, the openable hermetically sealed area contains at least one additional weakened line.

In embodiments of the present invention, the first weakened line is centered inside the openable hermetically sealed area.

The package of the first aspect of the present invention can be formed from a film of wrapping material known to those skilled in the art. In some embodiments, the film may be provided as a single sheet of wrapping material. In alternative embodiments, the film may be provided in the form of more than one sheet of wrapping material. The wrapping material film may be a laminate of more than one layer of wrapping material, for example, a laminate of two layers of wrapping material or a laminate of three layers of wrapping material. Suitable wrapping materials are paper, foil, polymer based wrapping materials, or a combination thereof. Suitable polymer based wrapping materials may be polymers derived from natural raw materials and polymers derived from hydrocarbon raw materials. An example of a suitable polymer-based wrapping material containing polymers derived from natural raw materials is cellophane. A film of wrapping material can be described as a film of wrapping material containing two sides and having a thickness. In some embodiments, the wrapping material is one substantially rectangular sheet.

The package may be formed by any suitable packaging method known to those skilled in the art. A suitable packaging method is a method of forming, filling and sealing. The package can be formed by the method of vertical formation, filling and hermetic sealing. In alternative embodiments, the package may be formed by horizontal forming, filling, and hermetic sealing. The package may be one of many packages gradually formed from a continuous sheet of wrapping material, for example, having the shape of a pipe. In one alternative embodiment, the package may be formed from a continuous sheet of wrapping material, the edges of which are assembled together and hermetically sealed to form a pipe.

The packaging of the first aspect comprises a storage volume. A storage volume is a volume within a package that can hold contents. Suitable contents are foods. The storage volume is closed with a film of wrapping material and at least one openable hermetically sealed area. Accordingly, the storage volume is substantially hermetically sealed from environmental influences, and as a result, for example, air or moisture does not penetrate into the storage volume.

The package of the first aspect comprises at least one openable hermetically sealed area. By opening a hermetically sealed area, we mean a part of the package, where two films of the wrapping material are hermetically connected together facing each other, as a result of which a laminate is formed from two films of the wrapping material. The two films of wrapping material forming the opening hermetically sealed region represent the corresponding part of one sheet of wrapping material. Such hermetic sealing of two films is achieved by crimping or pressing together two films of wrapping material. Adhesive and / or heat may be used. The openable hermetically sealed area is essentially flat and can be described as an openable hermetically sealed area having two sides and a thickness consisting of two film thicknesses. The openable hermetically sealed area has an outer edge and an inner edge. The outer edge refers to the edge that is the edge of the package. By inner edge is meant an edge forming the boundary between the storage volume and the hermetically sealed area to be opened.

In some embodiments, in which the package is substantially cube-shaped, the opening of the hermetically sealed area is preferably rectangular and extends substantially across one edge of the package and partially along two edges of the package perpendicular to said one edge of the package. In some embodiments, in which the package has a substantially rectangular shape, the openable hermetically sealed area is preferably an additional shape to the edge of the package and extends at least partially through the edge of the package.

The package may contain other hermetically sealed areas in addition to at least one openable hermetically sealed area. A package may contain one or more hermetically sealed areas that are not intended to be opened. A package may contain more than one opening hermetically sealed area.

The openable hermetically sealed area, as a rule, has a central point. A center point is a point on the surface of the openable hermetically sealed area, which is located approximately in the center of the openable hermetically sealed area. The center point is approximately equal to the distance from the inner and outer edges of the open hermetically sealed area and approximately equal to the distance from the first and second edges of the open hermetically sealed area.

In some embodiments, the center point is contained in the portion of the openable hermetically sealed area bounded by the first weakened line and the edge of the package.

The openable hermetically sealed area may contain a through hole. Preferably, the through hole is located in the openable hermetically sealed area in the inner part with respect to the edges of the openable hermetically sealed area. Preferably, the through hole is located approximately at the central point of the openable hermetically sealed area. Preferably, the through hole is adapted so that the package can be hung on a rail, rack or hook. An example of a suitable through hole may be a slot for hanging, for example, Euroslot.

In some embodiments, the openable hermetically sealed area comprises a through hole for hanging the package and a first weakened line passing through a part of the openable hermetically sealed area located between the through opening and the storage volume. In such embodiments, a through hole is contained in a portion of the hermetically sealed opening portion delimited by the first weakened line and the edge of the package.

The opening hermetically sealed area contains the first weakened line. By a first weakened line is meant a weakening of the wrapping material, which extends essentially along a line from said first point to said second point. The first weakened line may be continuous or intermittent. Preferably, the first weakened line comprises a continuous incision that does not extend completely through two films of wrapping material, forming an openable hermetically sealed area, for example, a groove or partial incision of one of the films of wrapping material or a complete cut of one of the films of wrapping material. In alternative embodiments, the first weakened line comprises a discontinuous notch. An intermittent incision may be an incision that does not completely pass through two films of wrapping material, forming an openable hermetically sealed area, for example, a groove or partial incision of one of the films of the wrapping material or a complete cut of one of the films of the wrapping material. In alternative embodiments, the intermittent cut may be a cut passing through both films of the wrapping material, for example, a through cut. A suitable method of obtaining attenuation of the wrapping material may be mechanical groove formation, mechanical notching, heat notching, air knife notching, stamping, notch forming or laser notching.

The first weakened line runs from the first point of the openable hermetically sealed area inside the first end to the second point of the openable hermetically sealed area located on the inside of the second end. Preferably, the first and second points are closer to the outer edge of the openable hermetically sealed area than to the inner edge of the openable hermetically sealed area. In embodiments in which the openable hermetically sealed area comprises a through hole, the first and second points are preferably located closer to the outer edge of the openable hermetically sealed area than the through hole. The first and second points can be located essentially on the outer edge of the opening hermetically sealed area. In some embodiments, the first weakened line is a curve that breaks near the outer edge of the hermetically sealed area, and the top of this curve is adjacent to the inner edge of the open hermetically sealed area, but does not reach it.

A suitably curved first weakened line may comprise an arc. The top of the arc is preferably adjacent to the inner edge of the hermetically sealed area, but does not reach it.

Suitably curved first weakened lines may generally comprise U-shaped curves. Typically, a U-shaped curve may contain an interlacing region between two parts substantially parallel to each other, or between two diverging branches.

In some embodiments, the first weakened line may be typically V-shaped. The vertex V is preferably adjacent to the inner edge of the hermetically sealed area, but does not reach it.

The first weakened line may be completely within the opening of a hermetically sealed area.

In some embodiments, the first weakened line may extend beyond the opening of the hermetically sealed area. For example, the first weakened line may pass through a portion of the film of wrapping material that forms the wall of the storage volume. Preferably, the first weakened line passing through the wall of the storage volume is a continuous or intermittent partial cut or groove in the films of the wrapping material. In embodiments where the films of the wrapping material are laminates of more than one layer of wrapping material, the first weakened line passing through the wall of the storage volume may be a complete section of at least one layer of the laminate, but not all layers of the laminate. Thus, the tightness of the storage volume is not broken.

In some embodiments, the openable hermetically sealed area comprises a first weakened line on only one film or side. However, in other embodiments, the openable hermetically sealed area may comprise a first weakened line on both films or sides.

The films forming the package have an outer and an inner side. The inner side is the inner surface of the first finished package.

The outer side is the outer surface of the finished package. The first weakened line can be made on any of the inner and outer sides of the film or films.

In some embodiments, the package does not contain weakened lines that are not completely within the openable hermetically sealed area.

Such an openable hermetically sealed area contains at least one additional weakened line. An additional weakened line is understood to mean a weakening of the wrapping material complementary to the first weakened line. Such at least one additional weakened line may be continuous or intermittent. Preferably, such at least one additional weakened line comprises a continuous incision that does not extend completely through two films of wrapping material, forming an openable hermetically sealed area, for example, a groove or partial incision of one of the films of wrapping material or a complete cut of one of the films of wrapping material. In alternative embodiments, the implementation of at least one additional weakened line contains a discontinuous cut. An intermittent cut is an incision that does not completely pass through two films of the wrapping material, forming an openable hermetically sealed area, for example, a groove or a partial cut of one of the films of the wrapping material or a complete cut of one of the films of the wrapping material. In alternative embodiments, the intermittent cut may be a cut passing through both films of the wrapping material, for example, a through cut. A suitable method of obtaining attenuation of the wrapping material may be mechanical groove formation, mechanical notching, heat notching, air knife notching, stamping, notch forming or laser notching.

In some embodiments, at least one additional weakened line does not cross the first weakened line. At least one additional weakened line may have essentially the same shape and orientation on the open hermetically sealed area as the first weakened line has. At least one additional weakened line may be generally parallel to the first weakened line. Preferably, at least one additional weakened line having substantially the same shape and orientation on the open hermetically sealed area as the first weakened line has, can be located at a distance from the first weakened line or offset from it in the direction of the outer edge of the open hermetically sealed area. Preferably, the first weakened line and at least one additional weakened line are generally parallel or are concentric arcs. In alternative embodiments, the implementation of at least one additional weakened line having essentially the same shape and orientation on the open hermetically sealed area as the first weakened line can be located at a distance from the first weakened line or offset from it in the direction of the inner edge of the open hermetically sealed area. At least one additional weakened line may have substantially the same length as the first weakened line. In alternative embodiments, at least one additional weakened line may be shorter than the first weakened line. In some embodiments, the implementation of at least one additional weakened line extends from a point located essentially on the inner edge of the open hermetically sealed area. At least one additional weakened line may extend from the first point on the outer edge of the open hermetically sealed area to the second point on the outer edge of the open hermetically sealed area. In alternative embodiments, at least one additional weakened line extends from a first point located between the outer and inner edges of the open hermetically sealed area to a second point located between the outer and inner edges of the open hermetically sealed area. At least one additional weakened line can be completely within the openable hermetically sealed area. In alternative embodiments, the implementation of at least one additional weakened line may pass through a portion of the film of wrapping material forming the wall of the storage volume.

In some embodiments, at least one additional weakened line crosses the first weakened line. Preferably, at least one additional weakened line extends from a first point on the first weakened line to a second point in an openable hermetically sealed area. The second point in the openable hermetically sealed area may be closer to the outer edge of the openable hermetically sealed area than the first point on the first weakened line. The second point in the openable hermetically sealed area may be on the outer edge of the openable hermetically sealed area. Preferably, at least one additional weakened line is shorter than the first weakened line.

Preferably, the openable hermetically sealed area comprises more than one additional weakened line. In embodiments where a plurality of additional lines are applied, each line may be as described above for at least one additional line.

Opening the hermetically sealed packaging in accordance with the first aspect of the present invention is not described. It is assumed that a hermetically sealed package is opened by grasping the opposite walls of the volume to store the package and stretching the walls in different directions. Stretching the walls in different directions thus serves as the beginning of the delamination of the films of the wrapping material in the openable hermetically sealed area from the inner edge of the openable hermetically sealed area to the outer edge of the openable hermetically sealed area. When delamination reaches the first weakened line, it is assumed that at least one of the films of the wrapping material of the openable hermetically sealed area begins to tear along the first weakened line. The gap occurs simultaneously with the ongoing delamination of the open hermetically sealed area. Since the first weakened line extends from the first point inward from the first end of the openable hermetically sealed area to the second point inward from the second end of the openable hermetically sealed area, the gap effectively promotes delamination to bypass part of the open hermetically sealed area. When the delamination of the open hermetically sealed area reaches the outer edge of the open hermetically sealed area, a part of the open hermetically sealed area between the first tear line and the inner edge of the open hermetically sealed area is already stratified; a portion of the openable hermetically sealed area between the tear line and the outer edge of the openable hermetically sealed area will still be laminated; and the hermetically sealed package will have an opening along the tear line and the outer edge of the open hermetically sealed area. The rupture of the first weakened line during the opening of the package, allowing the delamination to bypass a part of the opening of the hermetically sealed area, can thus bypass the through hole, if present. Therefore, the first weakened line can serve to prevent the negative impact of the through hole, if present, on opening the hermetically sealed package.

However, in some examples, the gap may deviate from the first weakened line in the direction of the through hole. It is assumed that the deflectable gap crosses the additional weakened line and is guided along the additional weakened line to provide the required effective and controlled opening of the hermetically sealed package. In fact, an additional weakened line crosses the wrong gap and directs the gap along a predetermined path to provide the desired opening process. If the weakened line did not cross the wrong gap, the deviation of the gap could adversely affect the controlled opening of the hermetically sealed packaging.

In some embodiments of the present invention, the hermetically sealed package may comprise more than one openable hermetically sealed area. Moreover, the hermetically sealed package may contain more than one opening hermetically sealed area containing the first weakened line extending from the first point of the hermetically sealed area inside the first end to the second point of the hermetically sealed area located on the inner side of the second end; moreover, the openable hermetically sealed area contains at least one additional weakened line.

In some embodiments, the hermetically sealed package may comprise more than one openable hermetically sealed area comprising a through hole for hanging the package and a first weakened line extending from the first point in the openable hermetically sealed area to the second point in the openable hermetically sealed area and passing through a part of the openable a hermetically sealed area located between the through hole and the storage volume; moreover, the openable hermetically sealed area contains at least one additional weakened line. The additional weakened line is preferably located below the first weakened line and above the through hole (lower and higher relative to the direction of separation of the openable hermetically sealed area).

In accordance with a second aspect of the present invention, there is provided a method of packaging an article comprising the steps of:

(1) a film of wrapping material is provided;

(2) a film of wrapping material is formed into a package capable of containing the product by forming at least one hermetically sealed area, the hermetically sealed area being the edge of the package and having first and second ends;

(3) the product is packaged;

(4) the package is hermetically sealed by forming at least one hermetically sealed area, the hermetically sealed area being the edge of the package and having first and second ends;

(5) in at least one of the hermetically sealed areas, a first weakened line is formed extending from the first point in the hermetically sealed area inside the first end to the second point in the hermetically sealed area located on the inside of the second end; and at least one additional weakened line is formed; and

(6) a through hole is additionally formed in the openable hermetically sealed area.

Step (1) includes providing a film of wrapping material. Suitable wrapping materials referred to in the first aspect are also suitable for the present second aspect. Preferably, a film of wrapping material may be provided as a single sheet. A film of wrapping material may be provided as a continuous sheet of wrapping material, which may be a wrapping material for sequentially forming a plurality of packages, such as a roll of wrapping material. Preferably, the film of wrapping material may be cut from a continuous sheet of wrapping material. In some embodiments, the wrapping film is provided in the form of more than one sheet.

Stage (2) includes forming a film of wrapping material in the package to accommodate the product. Steps (2) and (3) can be performed together. Preferably, a film of wrapping material is formed into a package around an article placed on a film of wrapping material. In some embodiments, films of wrapping material are formed into a package with a hole in the absence of the product, and the product is subsequently placed in the package through this hole. The product may be a single product or multiple products. An example of suitable products are food products. An example of suitable foods is confectionery.

Stage (3) includes placing the product in packaging. There are many easy ways to do this. The selected method depends on the physical condition of the product. For example, a product may be poured, injected, or blown or lifted into a package.

Stage (4) includes hermetically sealed packaging by forming at least one openable hermetically sealed area. Suitable properties of the openable hermetically sealed region referred to in the first aspect are also suitable for the second aspect.

Step (5) includes forming a first weakened line in at least one hermetically sealed area and forming at least one additional weakened line. In embodiments in which weakened lines are formed in only one of the hermetically sealed areas, such a hermetically sealed area may be referred to as an openable hermetically sealed area.

In some embodiments, weakened lines are formed in a hermetically sealed area formed in step (2). Preferably, the hermetically sealed area formed in step (2) is an openable hermetically sealed area. In some embodiments, they are formed directly in step (2).

In some embodiments, weakened lines are formed in a hermetically sealed area formed in step (4). Preferably, the hermetically sealed area formed in step (4) is an openable hermetically sealed area. In some embodiments, they are formed directly in step (4).

The provision of weakened lines in the film, similar to the provision of such lines as described for step (1), is not excluded.

Preferred properties of the first and additional weakened lines referred to in the first aspect are also suitable for the present second aspect.

Stage (6) includes the additional formation of a through hole in the open hermetically sealed area. Suitable through hole properties referenced in the first aspect are also suitable for the second aspect. The through hole may be formed by any suitable method known to those skilled in the art. For example, the through hole may be stamped, cut or burned out.

Steps (4), (5) and (6) can be performed in any sequence. Since the through hole in the openable hermetically sealed area is optional, the other two operations (5) and (6) can be performed in any sequence without performing step (6).

In some embodiments, three such operations performed in steps (4), (5) and (6) can be performed simultaneously. Since the through hole in the openable hermetically sealed area is optional, the other two operations can be performed simultaneously without performing this action.

In some embodiments, steps (5) or (6) may be followed by step (7), in which the wrapping material is cut to separate the package from the continuous sheet of wrapping material. Step (7) can be performed simultaneously with steps (4), (5) and an additional step (6).

The method of the present second aspect may be a method of horizontal formation, filling and hermetic sealing. The method of the present second aspect can be performed on a horizontal device for forming, filling and hermetically sealed.

The method of the present second aspect may be a method of vertically forming, filling and sealing. The method of the present second aspect can be performed on a vertical device for forming, filling and hermetically sealed.

In accordance with a third aspect of the present invention, there is provided a method of opening a hermetically sealed package in accordance with the first aspect, comprising the steps of:

(1) two opposite parts of the wrapping material are captured, forming the walls of the storage volume, brazed together in an openable hermetically sealed area;

(2) parts of the wrapping material are stretched in different directions with the use of sufficient force to begin the delamination of the opened hermetically sealed area; and

(3) a residual force continues to be applied to further delaminate the openable hermetically sealed area and tear the wrapping material along one or more weakened lines until the hermetically sealed package is opened.

The hermetically sealed packaging in accordance with the first aspect of the present invention can be used in the method of the present third aspect.

In accordance with a fourth aspect of the present invention, there is provided a hermetically sealed package comprising a volume for storing contents and at least one openable hermetically sealed area bordering at least one side with an edge of the package having a first and second end; moreover, the openable hermetically sealed area contains a first weakened line, which runs from the first point of the hermetically sealed area inside the first end to the second point of the hermetically sealed area located on the inner side of the second end; moreover, the openable hermetically sealed area contains at least one additional weakened line; and wherein the first weakened line and at least one additional weakened line are completely within the hermetically sealed area.

Suitable additional properties of the hermetically sealed packaging of the present fourth aspect are any of the properties referenced in the first aspect.

In accordance with a fifth aspect of the present invention, there is provided a hermetically sealed package comprising a volume for storing contents and at least one openable hermetically sealed area bordering at least one side with an edge of the package having a first and second end; in which the openable hermetically sealed area contains a through hole for hanging the package and the first weakened line passing through a part of the openable hermetically sealed area located between the through opening and the storage volume; moreover, the openable hermetically sealed area contains at least one additional weakened line.

Suitable additional properties of the hermetically sealed packaging of the present fifth aspect are any of the properties referenced in the first aspect.

In accordance with a sixth aspect of the present invention, there is provided a horizontal device for forming, filling, and hermetically sealed for forming and filling a package according to the first aspect of the present invention and for performing the method in accordance with the second aspect of the present invention.

Suitable properties of the device of the present sixth aspect are any of the previously mentioned packaging properties of the first aspect or method of the second aspect.

In accordance with a seventh aspect of the present invention, there is provided a vertical device for forming, filling, and hermetically sealed for forming and filling a package according to the first aspect of the present invention and for performing the method in accordance with the second aspect of the present invention.

Suitable properties of the device of the present seventh aspect are any of the previously mentioned packaging properties of the first aspect or method of the second aspect.

Preferably, the device according to the sixth and seventh aspects comprises means for forming a first weakened line and at least one additional weakened line in an openable hermetically sealed area.

In order to better understand the invention and to show how embodiments of the present invention can be embodied, reference will now be made, by way of example, to the accompanying schematic drawings, in which:

In FIG. 1 is a front view of a first embodiment of a hermetically sealed package in accordance with the present invention.

In FIG. 2 is a front view of a second embodiment of a hermetically sealed package in accordance with the present invention.

In FIG. 3 is a front view of a third embodiment of a hermetically sealed package in accordance with the present invention.

In FIG. 4 is a front view of a fourth embodiment of a hermetically sealed package in accordance with the present invention.

In FIG. 5 is a front view of a fifth embodiment of a hermetically sealed package in accordance with the present invention.

In FIG. 1, a hermetically sealed package (100) comprises a storage volume (110) and an opening hermetically sealed area (120). The openable hermetically sealed area contains an outer edge (121), an inner edge (122), a first weakened line (123), a through hole in the shape of a Euro slot (124) and additional weakened lines (125 and 126). The first weakened line (123) and additional weakened lines (125 and 126) are parallel arcs and are formed as continuous grooves. The weakened line (123) extends from the first point on the outer edge of the open hermetically sealed area (127) to the second point on the outer edge of the open hermetically sealed area (128) along an arc in the direction of the inner edge of the open hermetically sealed area (122) (not reaching ) and around Euroslot (124). Additional weakened lines (125 and 126) have essentially the same shape and orientation as the first weakened line (123). Additional weakened lines extend from the first point on the outer edge of the open hermetically sealed area to the second point on the outer edge of the open hermetically sealed area and are removed from the weakened line (123) in the Eurolot direction (124); that is, they are located inside the arc of the first weakened line.

When using the hermetically sealed package, it opens if you pull the two opposite walls of the storage volume in different directions so as to cause delamination of the open hermetically sealed area (the opened hermetically sealed area is indicated by visual cues on the package, for example, the orientation of the brand image and / or the inscription on packaging). Thus, a part of the openable hermetically sealed area is delaminated between the inner edge (122) and the weakened line (123). Then, at least one of the two layers of wrapping material of the openable hermetically sealed area is torn along the weakened line (123) and, thus, a part of the openable hermetically sealed area between the weakened line (123) and the outer edge (121) remains soldered. This process leads to the fact that the package with the hole along the part of the outer edge of the open hermetically sealed area is opened, and the weakened line remains intact. However, there is a risk that breaking the first weakened line (123) may deviate from the first weakened line. Additional weakened lines (125 and 126) may then stand in the way of the deviating rupture and cause a further rupture to extend along these additional weakened lines. This process will result in an opening in the package along a portion of the outer edge of the openable hermetically sealed area (121), at least along part of the weakened line (123), and at least along part of at least one of the additional weakened lines.

In FIG. 2, a hermetically sealed package (200) comprises a storage volume (210) and an opening hermetically sealed area (220). The hermetically sealed opening area contains an outer edge (221), an inner edge (222), a first weakened line (223), Euroslot (224) and additional weakened lines (225, 226, 227 and 228). The weakened line (223) extends from the first point on the outer edge of the open hermetically sealed area (229) to the second point on the outer edge of the open hermetically sealed area (230) along the arc in the direction of the inner edge of the open hermetically sealed area (222) and around Eurolot (224) ) Additional weakened lines (225, 226, 227 and 228) are shorter than the weakened line (223). Additional weakened lines extend from a point on the inner edge of the openable hermetically sealed area to a point on the opened hermetically sealed area and run parallel to the weakened line (223). In use, when the hermetically sealed package is opened in accordance with the process described in relation to FIG. 1, the gap begins near the closest to the inner edge of the open hermetically sealed area (226 and 228) additional weakened line. The gap may deviate from additional weakened lines (226 and 228) and may encounter an obstacle in the form of an adjacent additional weakened line (225 and / or 227). In addition, the deviation of the gap can meet an obstacle in the form of a first weakened line (223).

In FIG. 3, a hermetically sealed package (300) comprises a storage volume (310) and an opening hermetically sealed area (320). The hermetically sealed opening area contains an outer edge (321), an inner edge (322), a first weakened line (323), Euroslot (324) and additional weakened lines (325 and 326). The first weakened line (323) runs from the first point on the outer edge of the open hermetically sealed area (327) to the second point on the outer edge of the open hermetically sealed area (328) in the direction of the inner edge of the open hermetically sealed area (322) and around Eurolot (324) . Additional weakened lines (325 and 326) are shorter than the first weakened line (323). Additional weakened lines extend from points on the outer edge of the openable hermetically sealed area and cross the first weakened line (323) at two different points. In use, when the hermetically sealed package is opened in accordance with the process described in relation to FIG. 1, a gap deviating from the first weakened line (323) may encounter an obstacle in the form of additional weakened lines, as described in relation to FIG. one.

In FIG. 4 shows a hermetically sealed package (400) similar to the hermetically sealed package (400) shown in FIG. 1. However, the first weakened line (423) and additional weakened lines (425 and 426) are intermittent grooves (that is, they do not pierce through the entire thickness of the wrapping material).

In FIG. 5 shows a hermetically sealed package (500) similar to a hermetically sealed package (500) shown in FIG. 1, however, the first weakened line (523) is a continuous groove, and the additional weakened lines (525 and 526) are discontinuous grooves.

Claims (26)

1. A hermetically sealed package containing a volume for storing contents and at least one opening hermetically sealed area, a hermetically sealed area bordering at least one side with the edge of the package having a first and second end; moreover, the openable hermetically sealed area contains a first weakened line, which runs from the first point of the hermetically sealed area inside the first end to the second point of the hermetically sealed area located on the inner side of the second end; moreover, the openable hermetically sealed area contains at least one additional weakened line. 2. The hermetically sealed package according to claim 1, wherein the first weakened line and at least one additional weakened line are completely within the openable hermetically sealed area. 3. Hermetically sealed packaging according to any one of paragraphs. 1 and 2, in which the openable hermetically sealed area contains a through hole for hanging the package, the first weakened line passing through the part of the openable hermetically sealed area located between the through opening and the storage volume. 4. A hermetically sealed package according to claim 3, in which the through hole is a slot for hanging. 5. Hermetically sealed packaging according to any one of paragraphs. 1 and 2, in which the first weakened line and at least one additional weakened line are continuous lines. 6. Hermetically sealed packaging according to any one of paragraphs. 1 and 2, in which the first weakened line and at least one additional weakened line are broken lines. 7. Hermetically sealed packaging according to any one of paragraphs. 1 and 2, in which the first weakened line and at least one additional weakened line contain continuous and discontinuous lines. 8. Hermetically sealed packaging according to any one of paragraphs. 1 and 2, in which the first weakened line extends from the first point on the outer edge of the openable hermetically sealed area to the second point on the outer edge of the openable hermetically sealed area. 9. Hermetically sealed packaging according to any one of paragraphs. 1 and 2, in which the first weakened line is curved in the direction of the inner edge of the open hermetically sealed area. 10. Hermetically sealed packaging according to any one of paragraphs. 1 and 2, in which the first weakened line is an arc. 11. Hermetically sealed packaging according to any one of paragraphs. 1 and 2, in which the first weakened line is generally U-shaped. 12. Hermetically sealed packaging according to any one of paragraphs. 1 and 2, in which the first weakened line is generally V-shaped. 13. Hermetically sealed packaging according to any one of paragraphs. 1 and 2, in which at least one additional weakened line has essentially the same shape and orientation on the open hermetically sealed area as the first weakened line, and is removed from the first weakened line towards the inner edge of the open hermetically sealed area. 14. Hermetically sealed packaging according to any one of paragraphs. 1 and 2, in which at least one additional weakened line intersects the first weakened line. 15. Hermetically sealed packaging according to any one of paragraphs. 1 and 2, in which at least one additional weakened line is shorter than the first weakened line. 16. A method of packaging an article comprising the steps of:
(1) a film of wrapping material is provided;
(2) a film of wrapping material is formed into a package capable of containing the product by forming at least one hermetically sealed area, the hermetically sealed area being the edge of the package and having first and second ends;
(3) the product is packaged;
(4) the package is hermetically sealed by forming at least one hermetically sealed area, the hermetically sealed area being the edge of the package and having first and second ends;
(5) in at least one of the hermetically sealed areas, a first weakened line is formed extending from the first point in the hermetically sealed area inside the first end to the second point in the hermetically sealed area located on the inside of the second end; and at least one additional weakened line is formed; and
(6) a through hole is additionally formed in the openable hermetically sealed area. 17. The method according to p. 16, in which steps (2) and (3) involve the formation of a film of wrapping material in a package around the product. 18. The method according to p. 17, in which the product or products are placed in the storage volume through the hole. 19. The method according to any one of paragraphs. 16-18, in which weakened lines are formed during step (4) in a hermetically sealed area formed in step (4). 20. The method according to any one of paragraphs. 16-18, in which a film of wrapping material is provided as a continuous sheet of wrapping material. 21. The method according to p. 20, in which step (5) or additional step (6), if it is performed, is followed by step (7), which consists in trimming the wrapping material to separate the package from the continuous sheet of wrapping material. 22. The method according to any one of paragraphs. 16-18, 21, in which the method is performed on a horizontal device for forming, filling and tight sealing. 23. The method according to any one of paragraphs. 16-18, 21, in which the method is performed on a vertical device for forming, filling and tight sealing. 24. The method of opening a hermetically sealed package according to any one of paragraphs. 1-15, containing stages in which:
(1) two opposite parts of the wrapping material are captured, forming the walls of the storage volume, welded together in an openable hermetically sealed area;
(2) parts of the wrapping material are stretched in different directions with the use of sufficient force to begin the delamination of the opened hermetically sealed area; and
(3) continued application of sufficient force to further delaminate the openable hermetically sealed area and tear the wrapping material along one or more weakened lines until the hermetically sealed package is opened. 25. A horizontal device for forming, filling, and hermetically sealed for forming and filling the package according to any one of paragraphs. 1-15 and to perform the method according to any one of paragraphs. 16-22. 26. A vertical device for the formation, filling and tight sealing to form and fill the package according to any one of paragraphs. 1-15 and to perform the method according to any one of paragraphs. 16-21 or 23.

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