JP2017501947A - Basic unit of sheet-like packaging material for creating sealed packages for injectable food products and sealed packages for injectable food products - Google Patents

Abstract

A sealed package (1, 1 ') for an injectable food product, which is configured to define a lower wall (6) of the package (1, 1') in a normal use position; The first wall (6) having a plurality of first edges (10, 11, 12) defining a plane (Q) is opposed to the first wall (6) and the first wall (6) and opposed to each other. A second wall (5) comprising two edges (16) and a third edge (15) and configured to define the upper wall of the package (1, 1 ') in said normal use position And the second edge (16) and the third edge (15) are angled at a first angle (α) less than 90 degrees with respect to the first plane (Q). (P), the first angle (α) is between 1 and 7 degrees, sealing for injectable food products The package (1, 1 ') is described.

Description

  The present invention relates to a sealed package for an injectable food product.

  The invention also relates to a basic unit of sheet-like packaging material for making a hermetic package for injectable food products.

  As is known, many liquid or injectable food products such as fruit juice, UHT (ultra high temperature heat treated) milk, wine, tomato sauce, etc. are put in sealed packages made of sterilized packaging materials. Sold.

  A typical example is a parallelepiped shaped package for liquid or injectable food products known as Tetra Brik Aseptic®, which creases and seals laminated strip packaging materials Made by. The packaging material has a multilayer structure with a base layer of eg paper, covered on both sides with a layer of heat-sealable plastic material, eg polyethylene. In the case of a sterile package for long-term storage products such as UHT milk, the packaging material also comprises a layer of oxygen barrier material, for example aluminum foil, which is superimposed on a layer of heat-fused plastic material and then food product It is covered with another layer of heat-sealable plastic material that forms the inner surface of the package that will eventually contact.

  This type of package is usually made on a fully automatic packaging machine, where a continuous tube is formed from the packaging material fed by the web, the packaging material web being, for example, a hydrogen peroxide solution Sterilized on the packaging machine by applying a chemical sterilant, once the sterilization is complete, it is removed from the surface of the packaging material, e.g. evaporated by heating, and so sterilized The web is then maintained in a closed, sterile environment and folded and sealed longitudinally to form a vertically fed tube.

  To complete the forming operation, the tube is filled with a sterilized or aseptically processed food product, sealed, and then cut along equally spaced cross sections.

  More precisely, the tube is sealed longitudinally and transversely to its own axis.

  A pillow pack with one longitudinal sealing band and a pair of upper and lower lateral sealing bands is thus obtained.

  Alternatively, the packaging material may be cut into blanks, which are formed into a package on a molding spindle, which is then filled with a food product and sealed. An example of this type of package is the so-called “gable top” package known by the trade name Tetra Rex®.

-A rectangular lower wall traversed by a lower transverse sealing band;
-A rectangular upper wall traversed by an upper transverse sealing band;
-A rear wall extending between corresponding first edges of the upper and lower walls;
-A front wall extending between a corresponding second edge of the upper and lower walls facing the rear wall and facing the first edge;
A parallelepiped package comprising a pair of side walls inserted between a lower wall and an upper wall and between a rear wall and a front wall is known.

  More particularly, the upper lateral sealing band is folded over the top wall of the package, flush with the respective side walls, and on each side wall as the top wall. Each of the resulting packaging materials extends into a flat, substantially triangular upper flap.

  The upper transverse sealing band also forms a rectangular upper tab in the longitudinal direction, which has a free edge and is folded onto the upper wall along a fold line formed at the base of the same tab.

  The longitudinal sealing band extends perpendicularly between the lateral sealing bands and along the centerline of the rear wall.

  Furthermore, the rear and front walls are parallel to each other, the side walls are parallel to each other, and the side walls are perpendicular to both the rear and front walls.

  Parallelepiped packages are known that have holes for straws in the top wall and are completely filled with injectable product, i.e. injectable product in contact with the inside of the top wall.

  On the one hand, these parallelepiped packages cannot be optimally stacked on each other, i.e. the lower wall of the upper package cannot be on the upper wall of the lower package.

  In fact, the rectangular top tab protrudes upward from the top wall and therefore does not leave the top wall completely flat.

  On the other hand, when the user pierces the hole and exerts his / her finger action on the side wall, the level of injectable product is initially reduced and then into the user's finger action. Due to reaching the drilled hole. As a result, the injectable product leaks through a hole drilled in the top wall of the package.

  This is due to the fact that the sealed package is formed by folding the corresponding basic unit of the sheet-like packaging material along a plurality of crease lines. The volume of each package is slightly smaller than the theoretical volume defined by the corresponding basic unit, so that the molding and sealing of the package slightly compresses the packaging material. Accordingly, when the user pierces with a straw, the internal volume of the package increases up to the theoretical volume, thus causing a decrease in the level of injectable product. The user's finger action causes a subsequent increase in this value down to the hole level.

  The need to improve the vertical stackability of known parallelepiped packages is felt within the industry.

  Furthermore, there is a need to reduce the risk of leaking injectable product from a hole drilled for a given action exerted by the user.

  Furthermore, the package is known, for example, from US Pat. No. 5,057,028 or US Pat. No. 5,037,097 in the name of the same applicant, where the upper wall is tilted with respect to the lower wall and has a relative first edge. To a relative second edge.

In both of the above packages, the top wall is
A first region that receives the opening device and is bounded on both sides by a second edge and a lateral seal;
A second region bounded on both sides by a first edge and a transverse seal.

  Due to the fact that the top wall is tilted with respect to the bottom wall, the extent of the first region is increased for a parallelepiped package where the top wall is parallel to the bottom wall.

  Accordingly, the known package described above allows for the attachment of larger open devices in the first area.

  Furthermore, in the package known from US Pat. Nos. 5,099,086 and 5,037, the sealing band is folded over the first edge, i.e. the upper wall on the side of the higher edge of the package.

  A drawback of the known packages mentioned above is that they cannot be stacked vertically on each other, i.e. the lower wall of the upper package cannot be on the upper wall of the lower package.

  This is because the angle that exists between the upper and lower walls is greater than 20 degrees, thus causing slippage of the upper package on the lower package under the action of gravity.

  Furthermore, in the package known from Patent Document 1 or Patent Document 2, the height of the rear wall is greater than the height of the front wall.

  In other words, the higher wall, i.e. the rear wall, is traversed by the longitudinal sealing band, while the smaller wall, i.e. the front wall, does not have its longitudinal sealing band.

  At the point of sale, the package is stored with the wall without the longitudinal sealing band on the side of the potential customer.

  Correspondingly, with known solutions, potential customers are presented with smaller walls, thus significantly reducing the visual impression of the package at the point of sale.

  The need to present larger walls to potential customers is felt to increase the visual impression of the package as much as possible at the point of sale.

European Patent No. 2392517 European Patent No. 1332969

  Accordingly, it is an object of the present invention to provide a sheet-like packaging material for making a hermetic package for an injectable food product that meets at least one of the above needs.

  According to the invention, a hermetic package for an injectable food product as claimed in claim 1 is provided.

  The invention also relates to a sealed package for an injectable food product as claimed in claim 9.

  The invention also relates to a basic unit of sheet-like packaging material for making a sealed package for an injectable food product as claimed in claim 10.

  Two preferred and non-limiting embodiments of the present invention will be described by way of example with reference to the accompanying drawings.

1 is a perspective view of a sealed package according to a first embodiment of the present invention. FIG. 2 shows the two packages of FIG. 1 stacked vertically. FIG. 3 is a rear view of the package of FIGS. 1 and 2. FIG. 4 is a bottom view of the package of FIGS. 1 and 3 with parts removed for clarity. FIG. 5 is a side view of the package of FIGS. 1 to 4. FIG. 5 shows a first embodiment of a basic unit of sheet-like packaging material according to the invention, once folded, configured to form the sealed package of FIGS. 1 to 4. FIG. 5 shows a first embodiment of a basic unit of sheet-like packaging material according to the invention, once folded, configured to form the sealed package of FIGS. 1 to 4. It is a perspective view of the sealed package by the 2nd Embodiment of this invention. FIG. 9 shows the two packages of FIG. 8 stacked vertically. FIG. 10 is a rear view of the package of FIGS. 8 and 9. FIG. 11 is a bottom view of the package of FIGS. 8-10 with parts removed for clarity. FIG. 12 is a diagram of a second embodiment of the basic unit of sheet-like packaging material according to the present invention once folded, configured to form the sealed package of FIGS. 8-11.

  The number 1 in FIGS. 1 to 5 generally indicates a sealed package for an injectable food product, which is made of a multilayer sheet-like packaging material 2 (shown in FIG. 6).

  The packaging material 2 from which the package 1 is made has a multilayer structure comprising, for example, a paper base layer for rigidity, and several laminates covering both sides of the base layer.

  In the example shown, the stack comprises a first layer of oxygen barrier material, eg aluminum foil, and several second layers of heat-sealable plastic material covering both sides of both the base layer and the first layer. . In other words, such a solution consists of a layer of heat-fused plastic material, a layer of barrier material, another layer of heat-fused plastic material, continuously and from the side finally forming the inside of the package 1, A base layer and another layer of heat-sealable plastic material are provided.

  The inner layer of heat-sealable plastic material that contacts the food product in use may be made of, for example, strong, especially high stretch, low linear density (LLD) polyethylene, metallocene catalyzed.

  Usually, a layer of heat-sealable plastic material is laminated on the base layer in the molten state, followed by cooling.

  As a possible alternative, at least the inner layer of the plastic material may be provided as a pre-made film that is laminated onto the base layer, this technique being a part that can be removed during the molding operation to make the sealed package 1 Or any risk of forming holes or cracks in the vicinity thereof can be reduced.

  Package 1 preferably has a volume between 80 ml and 375 ml.

Referring to FIGS. 1 to 5, the package 1 is
A rectangular (in the illustrated example rectangular or square) top wall 5;
A rectangular (in this case rectangular or square) lower wall 6 facing the upper panel 5;
A flat wall 7 extending between the upper panel 5 and the lower panel 6;
A flat wall 8 extending between the upper panel 5 and the lower panel 6 and facing the wall 7;
-Two side walls 9 facing each other and extending between the upper wall 5 and the lower wall 6 and between the walls 7, 8.

  The lower wall 6 comprises two horizontal edges 10, 11 that are parallel to each other and two horizontal edges 12 that are inserted between and perpendicular to the edges 10, 11. The edges 12 are parallel to each other.

  The upper wall 5 comprises two horizontal edges 15, 16 that are opposite to each other and parallel to each other. More precisely, the horizontal edges 15 and 16 are parallel to the edges 10 and 11, respectively, and are arranged on the edges 10 and 11, respectively.

  The top wall 5 also comprises two edges 17 that extend between the edges 15, 16 and are parallel to each other.

  The edge 17 is disposed on each edge 12.

  The wall 7 extends between the edges 11, 16 and comprises two vertically opposed edges 18 that are parallel to each other and extend between the edges 11, 16.

  The wall 8 extends between the edges 10, 15 and comprises two vertically opposed edges 19, which extend between the edges 10, 15.

  Each side wall 9 is bounded by edges 12, 17, relative edges 18, and relative edges 19.

  The package 1 also comprises an upper lateral sealing band 21 (FIG. 1) and a lower lateral sealing band 25 (FIG. 4), which extend across the upper and lower walls 5,6.

  The sealing band 21 divides the top wall 5 into two parts 22, 23, one (22) of which is adjacent to the front wall 8 and bounded by an edge 15. The other part (23) adjacent to the rear panel 7 and bounded by the edge 16 comprises the upper end part of the flat longitudinal sealing band 24 of the package 1 along the center line (FIG. 4).

  More specifically, the longitudinal sealing band 24 is perpendicular between the lateral upper sealing band 21 and the lateral lower sealing band 25, in the illustrated embodiment substantially along the centerline of the wall 7. Extend.

  The upper lateral sealing band 21 extends over the upper wall 5 of the package 1 in a flat manner with the upper wall 5 and on each side wall 9 which is folded on each side wall 9 with the upper wall 5 as a starting point. , Extending into a substantially triangular lateral upper flap 26 (only one of which is shown in FIGS. 1 and 2).

  With reference to FIGS. 1 and 2, the upper lateral sealing band 21 also projects from the portions 22, 23 and the lateral upper flap 26 and bends on the wall 5 along a fold line 40 formed at the base of the tab 29. A rectangular flat upper tab 29 is also formed in the length direction.

  Tab 29 is bounded by free edge 41 on the opposite side of fold line 40.

  At the point of sale, the wall 8 without the longitudinal sealing band 24 is positioned on the potential customer side and is therefore generally regarded as the front wall of the package 1.

  Conversely, the wall 7 is positioned on the opposite side of the potential customer and is therefore generally regarded as the rear wall of the package 1.

  Referring to FIG. 4, the lower transverse sealing band 25 divides the lower wall 6 into two parts 27, 28.

  Portion 27 is adjacent to wall 7 and bounded by edge 11 and comprises a lower end portion of longitudinal sealing band 24 along the centerline.

  Portion 28 is adjacent to wall 8 and is bounded by edge 10.

  The lower transverse sealing band 25 includes a main portion 30 and a pair of end portions 31 disposed on both lateral sides of the portion 30 (FIG. 4).

  The portion 30 is folded over the wall 6, while the portion 31 forms two respective flat, substantially triangular side lower flaps 32 of the packaging material that is folded over the portion 30.

  In addition, the lower transverse sealing band 25 also protrudes from the portions 27, 28 and forms a flat rectangular lower tab 33 extending longitudinally into the lower flap 32. The tab 33 then comprises a main portion that is folded over the lower wall 6 and a pair of side portions that are folded over the main portion of the tab 33 itself along a fold line formed at the base of the tab 33.

  The edges 15 and 16 of the upper wall 5 define a plane P.

  The edges 10, 11, 12 of the lower wall 6 define a plane Q that is horizontal in use and on which the package 1 is normally above, as shown in FIGS.

  With reference to FIGS. 1 and 5, plane P is angled at an angle α that is less than 90 degrees with respect to plane Q.

  Advantageously, the angle α ranges between 1 and 7 degrees (FIG. 5).

  Even more precisely, the angle α ranges between 3 and 5 degrees.

  More specifically, edge 16 is at a first distance H1 from edge 11 measured perpendicular to plane Q, while edge 15 is second from edge 10 measured perpendicular to plane Q. At a distance H2.

  The first distance H1 is greater than the second distance H2.

  As a result, the height of the wall 7 is higher than the height of the wall 8.

  Advantageously, the tab 29 is folded on the side of the edge 15, ie on the part 22 and on the side of the wall 8, so that the edge 41 is inserted between the fold line 40 and the edge 15 (FIG. 1). 2 and 5).

  In this way, thanks to the thickness of the lower lateral sealing band 25, the edge 41 and the edge 16 define a plane R, as shown in FIG.

  The plane R is angled with respect to the plane Q at an angle smaller than the angle α.

  In the illustrated embodiment, the plane R and the plane Q are parallel to each other.

  In this way, as shown in FIG. 2, the further upper package 1 a can be stacked on the lower package 1 with its wall 6 a lying on the edges 16, 41 of the wall 5 of the lower package 1.

  Referring to FIGS. 1 and 2, the upper end of the longitudinal sealing band 24 divides the portion 23 into two regions 23a, 23b.

  The package 1 also comprises a closed circular hole 45 in the illustrated embodiment, from which the base layer has been removed.

  The hole 45 is configured to be pierced by a straw (not shown) to allow the user to drink the injectable product contained in the package 1.

  In the illustrated embodiment, the hole 45 is located in the region 23a.

  Furthermore, in the illustrated embodiment, the package 1 does not comprise any open device attached to the wall 5.

  The letter M in FIGS. 6 and 7 is the basis of the packaging material 2 by which the package 1 is created and may be part of a web of packaging material comprising a pre-cut blank or a series of units M Indicates a unit.

In the first case, the basic unit M is folded on a known crease spindle (not shown), filled with a food product and sealed at the top and bottom to form the package 1. In the second case, the web of packaging material 2 comprising a series of basic units M is
-Folded into a cylinder to form a vertical tube with a constant circumference;
-Continuously filled with food products; and-laterally sealed, cut into basic units M, which are then folded to form the respective package 1;

  The theoretical volume defined by the basic unit M is larger than the volume of the sealed package 1. As a result, the packaging material of the sealed package 1 is slightly compressed.

The crease pattern 60 is substantially
A lateral crease line 67 for forming the edges 10, 11, 12 of the finished package 1;
A lateral crease line 63 for forming the edges 15, 16, 17 of the finished package 1;
A pair of lateral crease lines 61, 62 for allowing folding of the upper lateral sealing band 21 and the lower lateral sealing band 25;

  The crease lines 67, 61, 62 are straight, i.e. they do not have any angle.

  The crease lines 67, 61, 62 are parallel to each other.

  The crease lines 63 and 67 are inserted between the crease lines 61 and 62.

The crease pattern 60 is
A pair of longitudinal crease lines 65, 66 parallel to each other;
A pair of longitudinal crease lines 68, 69 that are parallel to each other and inserted between crease lines 65, 66;
A pair of longitudinal end edges 64, 57 facing each other;
An edge region 59 which is bounded by an edge 64 and a longitudinal crease line 58 and intended to be sealed on the opposite edge 57 of the basic unit M to form a cylinder.

  Specifically, crease lines 58, 65, 68, 69, 66 and edges 64, 57 are parallel to each other and perpendicular to crease lines 67, 61, 62.

  The crease lines 65 and 66 are inserted between the crease line 58 and the edge 57.

The crease pattern 60 is also
A rectangular end region 78 bounded by a crease line 61 and a lateral end edge 77 of the basic unit M opposite the crease line 61;
-Further comprising a crease line 62 and a rectangular end region 79 bounded by a further lateral end edge opposite the edge 77 of the basic unit M opposite the crease line 62 (Fig. 6).

  Once the basic unit M is folded, the end region 78 is configured to form the upper tab 29 of the finished package 1 and the end region 79 is configured to form the lower tab 33.

  When the package 1 is formed by a tube of packaging material 2, the end edge 77 and the further lateral end edge are formed by a transverse cut of the tube.

  The crease line 61 is configured to form the fold line 40 of the upper tab 29 of the finished package 1, and the edge 77 is configured to form the edge 41 of the tab 29.

  The crease line 61 intersects the crease lines 58, 65, 68, 69, 66 and the end edge 57 at the intersection points 80, 81, 82, 83, 84, 85, respectively.

  The crease line 63 intersects the crease lines 58, 65, 68, 69, 66 and the end edge 57 at the intersections 90, 91, 92, 93, 94, 95, respectively.

  The crease line 67 intersects the crease lines 58, 65, 68, 69, 66 and the end edge 57 at the intersection points 100, 101, 102, 103, 104, 105, respectively.

  The crease line 62 intersects the crease lines 58, 65, 68, 69, 66 and the end edge 57 at the intersection points 110, 111, 112, 113, 114, 115, respectively.

Pattern 60 is
A panel 150, which is bounded by points 92, 93, 102, 103 and is configured to define the wall 8 of the finished package 1 once the basic unit M is folded;
-Placed on both sides of the panel 150, one defined by points 91, 92, 101, 102 and the other defined by points 93, 94, 103, 104, defining the side wall 9 of the finished package 1 A pair of panels 151 configured to:
-Placed on the opposite side of panel 151 with respect to panel 150, one of which is defined by points 90, 91, 100, 101 and the other of which is defined by points 94, 95, 104, 105, once the basic unit M And a pair of panels 152 configured to define the rear wall 7 of the finished package 1 when the edge region 59 is sealed on the edge 57 (FIG. 7).

Pattern 60 is also
A rectangular panel 153 defined by points 82, 83, 92, 93 and configured to define a portion 22 of the top wall 5;
-Arranged on both lateral sides of the panel 153, defined by points 80, 81, 90, 91 and 84, 85, 94, 95, respectively, and configured to define the portion 23 of the upper wall 5 of the finished package 1 A pair of rectangular panels 154;
A rectangular panel 155 defined by points 102, 103, 112, 113 and configured to define a portion 28 of the lower wall 6;
A pair of rectangles arranged on the lateral sides of the panel 155 and defined by the points 100, 101, 110, 111 and 104, 105, 114, 115, respectively, and configured to define the part 27 of the lower wall 6 And a panel 156 (FIG. 7).

The pattern 60 is further
-Each extending between a respective point 91, 92 (93, 94) and a common point 86 (87) in place on the crease line 61 and between the points 81, 82 (83, 84), A pair of crease lines 70, 71 (72, 73);
-Each extending between a respective point 101, 102 (103, 104) and a common point 116 (117) in place on the crease line 62 and between the points 111, 112 (113, 114), A pair of crease lines 74, 75 (76, 77) (FIG. 6).

  The crease lines 70, 71, 72, 73, 74, 75, 76, 77 are inclined with respect to the crease lines 61, 67, 63, 62, the edges 64, 57 and the crease lines 65, 68, 69, 66, 60. .

Thanks to the presence of the crease lines 70, 71, 72, 73, 74, 75, 76, 77, the pattern 60
A pair of upper triangular panels 160, 161 defined by points 86, 91, 92 and points 87, 93, 94 and disposed on each side of each panel 153;
A triangular panel 162 inserted laterally between the panels 160 and 154 and defined by points 91, 81, 86;
A triangular panel 163 inserted laterally between panels 160 and 153 and defined by points 82, 86, 92;
A triangular panel 164 inserted laterally between the panels 161 and 153 and defined by points 83, 87, 93;
A triangular panel 165 inserted laterally between the panels 161 and 154 and defined by points 84, 87, 94 (FIG. 7).

  Once the base unit M is folded to form the finished package 1, the panels 163, 162 and 160 form one upper flap 26, while the panels 165, 161, 164 form the other upper flap 26. Form.

  Even more precisely, the panels 160, 161 define the inner surface of each upper flap 26 superimposed on the upper portion of each side wall 9, while the panels 162, 163 and 164, 165 are finished packages. The outer surface of each upper flap 26 is defined with respect to one side wall 9.

Furthermore, the pattern 60 is
A pair of lower triangular panels 170, 171 defined by points 101, 102, 116 and points 103, 104, 117;
A triangular panel 172 inserted between the panels 170 and 156 and defined by the points 101, 111, 116;
A triangular panel 173 inserted between the panels 170 and 155 and defined by the points 102, 112, 116;
A triangular panel 174 inserted between the panels 171 and 155 and defined by the points 103, 113, 117;
A triangular panel 175 inserted between the panels 171 and 156 and defined by the points 104, 117, 114 (FIGS. 6 and 7).

  Once base unit M is folded to form finished package 1, panels 173, 172 and 170 form one lower flap 32, while panels 175, 171, 174 Form.

  Even more precisely, the panels 172, 173 and 174, 175 define the inner surface of each lower flap 32 superimposed on the respective lower wall 6, while the panels 170, 171 are the lower wall of the finished package 1. 6 defines the outer surface of each flap 32.

The crease line 63 is then
A segment 200 extending between points 92, 93 and configured to define the edge 15 of the finished package 1;
A pair of segments 201 arranged in succession on both lateral sides of the segment 200, extending between points 91, 92 and 93, 94, respectively, and configured to define the edge 17 of the finished package 1;
-Contiguous to each segment 201, arranged on the opposite side of segment 201 with respect to segment 200, extending between points 90, 91 and 93, 94, respectively, and configured to define edge 16 of finished package 1 A pair of segments 202 (FIG. 7).

  Each segment 201 is advantageously angled at an angle β that is less than 90 degrees relative to the segment 200 and ranges from 1 to 7 degrees.

  In this way, the plane P of the finished package 1 is angled with respect to the plane Q defined by the wall 5 once the basic unit M is bent.

  More precisely, each angle β ranges between 3 and 5 degrees in the illustrated embodiment.

  Once the basic unit M is bent to form the finished package 1, each angle β forms a relative angle α.

  Further, segments 201 deviate from crease line 67 as they travel from segment 200 toward their respective segments 202.

  In other words, the distance between the points of each segment 201 and the crease line 67 increases from the points 92 and 93 toward the respective points 91 and 94.

  The crease pattern 60 also comprises a closed line 190 that is circular in the illustrated embodiment, which is disposed inside the panel 154 bounded by the crease lines 58, 65 to define a closed region 191, From there, the paper layer has been removed.

  Region 191 is configured to define a hole 45 once basic unit M is folded to form finished package 1.

  The crease line 67 is straight, i.e. without an angle, and defines the edges 10, 11, 12 of the wall 6.

  The crease line 67 is on the plane Q once the basic unit M of the packaging material 2 is folded to form the finished package 1.

More specifically, the crease line 67 is
A segment 210 extending between the points 102, 103 and configured to define the edge 10 of the finished package 1;
A pair of segments 211 arranged in succession on both lateral sides of the segment 210 and extending between the points 101, 102 and 103, 104, respectively, configured to define the respective edges 12 of the finished package 1; ,
A pair of segments 212 that are contiguous to each segment 211 and that are arranged on the opposite side of segment 211 with respect to segment 210 and that are configured to define edge 11 of finished package 1 (FIG. 7) .

  The distance between the segments 200, 210 is equal to the height H2, while the distance between the segments 202, 212 is equal to the height H1, which is greater than the height H2.

  As a result, panel 150 has an area that is less than the sum of the areas of panel 152.

  Finally, crease lines 65, 66 extend between points 91, 101 and 94, 104 and define the edge 18 of the finished package 1 once the basic unit M is folded to form the finished package 1. Each segment is defined as follows.

  The crease lines 68, 69 extend between points 92, 102 and points 93, 103 so as to define the edge 19 of the finished package 1 once the basic unit M is folded to form the finished package 1. Define each segment to be composed.

  In use, the package 1 is positioned at the point of sale with a wall 8 having a smaller height H2 in front of the potential customer.

  Furthermore, the packages 1 are stacked vertically as shown in FIG. 2 with the wall 6a of the upper package 1a on the edge 16 of the wall 5 of the lower package 1 and on the free edge 41 of the tab 29. Can do.

  To drink the injectable product contained in the package 1, the user holds the walls 7, 8, 9 with his / her fingers and pierces the hole 45 with a straw (not shown).

  When the user punctures the hole 45 with the package 1 held between his / her fingers, the level of injectable product is the theoretical volume defined by the basic unit M for the package 1, 1 ′. Due to the fact that it returns to 1st, then increases, but remains at least slightly spaced from the hole 45 if at least the load exerted on the walls 7, 8, 9 is not excessive It is.

  The number 1 ′ in FIGS. 8 to 11 indicates a second embodiment of the sealed package according to the present invention, the sealed packages 1, 1 ′ are similar to each other, and the following description is based on the differences between them. Where possible, use the same reference numbers for the same or corresponding parts where possible.

  The sealed package 1 'is in that the longitudinal sealing band 24' extends along the center line of the wall 5 portion 22 ', the wall 6 portion 28, and substantially along the center line of the smaller wall 8'. Different from sealed package 1.

  As a result, the higher wall 7 'is free of the longitudinal sealing band 24'.

  Accordingly, at the point of sale, the smaller wall 8 'of height H2 defines the rear wall of the package 1' positioned on the opposite side of the potential customer. Conversely, the higher wall 7 'of height H1 defines the front wall of the package 1' on the potential customer side at the point of sale.

  Furthermore, the sealed package 1 ′ differs from the sealed package 1 in that the hole 45 ′ is located at the center line of the portion 23 ′ of the wall 5.

  Finally, the sealed package 1 'differs from the sealed package 1 in that the upper end of the longitudinal sealing band 24' divides the portion 22 'into two regions 22a', 22b '.

  The letter M ′ in FIG. 12 indicates a second embodiment of the basic unit of the packaging material 2 ′ by which the package 1 ′ is created, the basic units M, M ′ of the packaging material 2, 2 ′ Similar and the following description is limited to the differences between them and, where possible, the same reference numerals are used for the same or corresponding parts.

  The basic unit M ′ differs from the basic unit M in that the segment 201 ′ approaches the crease line 67 as it advances from the segment 200 toward the respective segment 202.

  In other words, the distance between the points of each segment 201 ′ and the crease line 67 decreases from the points 92 and 93 toward the respective points 91 and 94.

  Furthermore, the basic unit M ′ is fundamental in that the distance between the segments 200, 210 is equal to the height H1, while the distance between the segments 202, 212 is equal to a height H2 that is less than the height H1. Different from unit M.

  In this way, the panel 150 has an area that is larger than the total area of the panels 152.

  Finally, the basic unit M 'differs from the basic unit M in that the region 191' is located inside the panel 153 and in the illustrated embodiment is at the center position inside the panel 153.

  The advantages of the packages 1, 1 'and sheet-like packaging materials 2, 2' according to the present invention will be clear from the above description.

  In particular, the plane P defined by the edges 15, 16 of the wall 5 is angled by an angle α ranging between 1 and 7 degrees with respect to the plane Q defined by the wall 6.

  Accordingly, the packages 1, 1 'can be stacked together more efficiently than the known parallelepiped packages described in the introduction of this description (as shown in FIGS. 2 and 9).

  In fact, the inclination of the plane P is restored by the thickness of the tab 29 and therefore contains any risk of slipping between the packages 1, 1 'stacked on each other.

  Furthermore, the Applicant has determined that due to these values of the angle α, the walls 7, 8, 9 required to cause leakage of the injectable product from the boundary of the open holes 45, 45 ′. And found that the load on 7 ', 8', 9 is increased for the known parallelepiped package described in the introduction of this description.

  In other words, the risk of leakage of injectable product when the straw opens holes 45, 45 'and a given load is exerted on the walls 7, 8, 9 and 7', 8 ', 9 by the user. Is reduced with respect to the known parallelepiped package described in the introduction of this description.

  In fact, if the plane P is angled with respect to the plane Q, which is horizontal in use, the level of injectable product inside the package 1, 1 'is slightly lower than the level of the hole 45 drilled by the straw.

  Correspondingly, the hole 45 is opened by a straw and the user applies a given load to the walls 7, 8, 9 and 7 ', 8', 9 and then the injection inside the package 1, 1 '. The level of possible product initially decreases due to the fact that the packages 1, 1 'return to a larger initial volume and then increases due to the user's action, but the level of the hole 45 is reduced. It remains slightly below, thus reducing the risk of leaking towards the contour of the open holes 45, 45 'containing the straw.

  Indeed, the packages 1, 1 'define a volume that is smaller than the geometric volume defined by the sheet-like packaging material 2, 2' when sealed. This occurs because the packaging material 2, 2 'forming the package 1, 1' is slightly compressed when forming the package 1, 1 '.

  Eventually, when the angle α is between 1 and 7 degrees, the packages 1, 1 ′ can be stacked better on the one hand than the known parallelepiped packages, on the other hand, in these known parallelepiped packages. The impact of the related leakage problem is less.

  The Applicant has also found that the above-mentioned advantages can be achieved by using an angle α, in particular ranging between 3 and 5 degrees.

  The holes 45, 45 ′ are closer to the edge 16, which is at a greater distance from the plane Q than the edge 15. Accordingly, the risk that the injectable product will leak through the boundaries of the open holes 45, 45 'is also much higher imposed by the user on the walls 7, 8, 9 and 7', 8 ', 9 The load is also reduced.

  Further, the tab 29 is bent toward the edge 15 closer to the plane Q than the edge 16.

  In this way, due to the thickness of the packaging material, the free edge 41 and edge 16 of the tab 29 define a plane R, which is angled less than the plane P with respect to the plane Q and is illustrated. In an embodiment, it is substantially parallel to a plane Q that is horizontal when in use.

  Accordingly, when two or more packages 1, 1 ′ are stacked perpendicular to each other (as shown in FIGS. 2 and 9), the lower wall 6 of the upper package 1, 1 ′ has a plane P Even if it is slightly angled with respect to the plane Q, it can be firmly supported on the edges 16, 41.

  The wall 7 'of the package 1' has a height H1 that is greater than the height H2 of the wall 8 'and is free of the longitudinal band 24'.

  Accordingly, the packages 1 'may be stored with a larger wall 7' in front of the customer at the point of sale, thus improving their visual impression.

  Segment 201 defines an angle β with respect to segment 200, which ranges between 1 and 7 degrees.

  In this way, the blanks M, M 'of the sheet-like packaging material 2, 2', once folded, can form a package 1, 1 'having the previously discussed advantages.

  Clearly, as described and exemplified herein, however, the blanks of package 1, 1 'and sheet-like packaging material 2, 2' without departing from the scope defined in the appended claims Changes to M and M ′ may be made.

  In particular, the finished package 1, 1 ′ may comprise one or more further walls inserted between the wall 9 and the walls 7, 7 ′ or 8, 8 ′.

  Furthermore, the holes 45, 45 ′ may be replaced by through-holes in the packaging material 2, 2 ′, which are closed by a hermetic layer, for example polyethylene, inside the package 1, 1 ′ and closed by a barrier layer on the outside. obtain.

  The hermetic layer and the barrier layer may be pierced by a straw or manually removed by a user.

1 package 1 'package 1a upper package 2 packaging material 2' packaging material 5 upper wall, upper panel 6 lower wall, lower panel 7 wall, rear wall, rear panel 7 'wall 8 wall, front wall 8' wall 9 side Wall 10 Edge 11 Edge 12 Edge 15 Edge 16 Edge 17 Edge 18 Edge 19 Edge 21 Upper lateral sealing band 22 Part 22 'Part 22a' Region 22b 'Region 23 Part 23' Part 23a Region 23b Region 24 Vertical sealing band 24 ' Vertical sealing band 25 Lower lateral sealing band 26 Upper flap 27 Part 28 Part 29 Upper tab 30 Main part 31 End part 32 Lower flap 33 Lower tab 40 Fold line 41 Free edge 45 Hole 45 'Hole 57 End edge 58 Fold line 59 Edge region 60 Crease pattern 61 Crease line 2 crease line 63 crease line 64 edge edge 65 crease line 66 crease line 67 crease line 68 crease line 69 crease line 70 crease line 71 crease line 72 crease line 73 crease line 74 crease line 75 crease line 76 crease line 77 edge edge , Crease line 78 end area 79 end area 80 intersection 81 intersection 82 intersection 83 intersection 84 intersection 85 intersection 86 common point 87 common point 90 intersection 91 intersection 92 intersection 93 intersection 94 intersection 95 intersection 103 intersection 102 intersection 103 intersection point 103 intersection point 103 intersection point 103 intersection point Intersection 105 Intersection 110 Intersection 111 Intersection 112 Intersection 112 Intersection 113 Intersection 114 Intersection 115 Intersection 116 Common Point 117 Common Point 150 Panel 151 Panel 152 Panel 153 Panel 154 Panel 155 Panel 156 Panel 160 Panel 161 Pa 162 panel 163 panel 164 panel 165 panel 170 panel 171 panel 172 panel 173 panel 174 panel 175 panel 190 closed line 191 area 191 'area 200 segment 201 segment 201' segment 202 segment 210 segment 211 segment 212 segment H1 height H2 height M Basic unit, blank M 'Basic unit, blank P plane Q plane R plane α angle β angle

Claims (16)

A sealed package (1, 1 ') for an injectable food product,
A first edge (10, 11) that is configured to define a lower wall of the sealed package (1, 1 ') in a normal use position and that defines a plurality of boundaries defining a first plane (Q); 12) comprising a first wall (6),
-A second edge (16) and a third edge (15) facing the first wall (6) and facing each other, in the normal use position, the sealed package (1, 1 ') A second wall (5) configured to define an upper wall of
With
The second plane (16) and the third edge (15) are angled with respect to the first plane (Q) at a first angle (α) less than 90 degrees. (P)
The sealed package, wherein the first angle (α) ranges between 1 and 7 degrees.   The sealed package according to claim 1, characterized in that said angle (α) ranges between 3 and 5 degrees. A third wall (7, 7 ') extending between the first wall (6) and the second wall (5) and bounded by the second edge (16);
-Extending between the first wall (6) and the second wall (5), facing the third wall (7, 7 ') and bounded by the third edge (15); A fourth wall (8,8 ') attached,
With
The third wall (7, 7 ') has a first height (H1) measured perpendicular to the first plane (Q);
The fourth wall (8, 8 ') has a second height (H2) measured perpendicular to the first plane (Q);
The hermetic package according to claim 1 or 2, characterized in that the first height (H1) is greater than the second height (H2). Said second wall (5) defines a closed hole (45, 45 ');
Sealed package according to claim 3, characterized in that the holes (45, 45 ') are closer to the second edge (16) than to the third edge (15). Folded at least partially onto the second wall (5) and bounded by a fold line (40) formed at the base of the fourth free edge (41) and the first sealing band (21). Comprising said first sealing band (21) forming a tab (29);
The fold line (40) and the fourth free edge (41) face each other;
The first sealing band (21) is the third free edge (41) so that the first sealing band (21) is inserted between the fold line (40) and the third edge (15). 5. Sealed package according to claim 3 or 4, characterized in that it is folded on the edge (15) side of the.   The fourth free edge (41) and the second edge (16) are angled with respect to the first plane (Q) to a second angle smaller than the first angle (α). The sealed package according to claim 5, characterized in that it defines three planes (R).   The sealed package according to claim 6, characterized in that the third plane (R) is parallel to the first plane (Q).   Transverse to the first sealing band (21) along the fourth wall (8 ') so as to leave the third wall (7') free of any sealing band A sealed package according to any one of claims 3 to 7, characterized in that it comprises a second sealing band (24 ') extending in the direction. A sealed package (1, 1 ') for an injectable food product,
A first edge (10, 11) that is configured to define a lower wall of the sealed package (1, 1 ') in a normal use position and that defines a plurality of boundaries defining a first plane (Q); 12) comprising a first wall (6),
-A second edge (16) and a third edge (15) facing the first wall (6) and facing each other, in the normal use position, the sealed package (1, 1 ') A second wall (5) configured to define an upper wall of
With
A first distance (H1) of the second edge (16) from the first plane (Q) is a second distance of the third edge (15) from the first plane (Q). Greater than the distance (H2),
The sealed package (1, 1 ') is further folded at least partially on the second wall (5) and formed at the base of the fourth free edge (41) and the first sealed band (21). Said first sealing band (21) forming a tab (29) bounded by a fold line (40)
The fold line (40) and the fourth free edge (41) are opposite to each other;
The first sealing band (21) is the third free edge (41) so that the first sealing band (21) is inserted between the fold line (40) and the third edge (15). Sealed package, characterized in that it is folded to the side of the edge (15). A basic unit (M, M ′) of sheet-like packaging material for making a sealed package (1, 1 ′) of injectable food products,
-Once the basic unit (M, M ') is folded, it defines the first edge (15, 16, 17) of the upper first wall (5) of the finished package (1, 1') At least one first crease line (63), configured as follows:
-Once the basic unit (M, M ') is folded, the second of the lower second wall (6) of the finished package (1, 1') facing the first wall (5) At least one straight second crease line (67) configured to define the edges (10, 11, 12) of
-Once the basic unit (M, M ') is folded, it defines at least a part (22, 22') of the upper first wall (5) of the finished package (1, 1 ') A first panel (153) comprising:
-Placed on the opposite side of the first panel (153) with respect to the first crease line (63), and once the basic unit (M, M ') is folded, the finished package (1, 1') Configured to define a lateral third wall (9) inserted between the upper first wall (5) and the lower second wall (6) of at least One second panel (151);
With
The first crease line (63) is then
-Bordering the first panel (153) and once the basic unit (M, M ') is folded, the first edge (15, 16, 17) of the finished package (1, 1') A first segment (200) configured to define one (15) of
-Adjacent to and continuous with the first segment (200), bordering the second panel (151), and once the basic unit (M, M ') is folded, the first edge At least one second segment (201, 201 ′) configured to define another one (17) of (15, 16, 17);
With
The first segment (200) and the second segment (201, 201 ′) are angled at an angle (β) less than 90 degrees;
Basic unit, characterized in that said angle (β) ranges between 1 and 7 degrees.   Basic unit according to claim 10, characterized in that said angle (β) ranges between 3 and 5 degrees.   The second segment (201) departs from the second crease line (67) as it starts from the first segment (200) and proceeds along the first crease line (63). The basic unit according to claim 10 or 11, characterized in that -Arranged on the same side of the first panel (153) with respect to the first fold line (63), and once the basic unit (M) is folded, the upper second of the sealed package (1) A third panel (154) configured to define an additional portion (23) of one wall (5);
A closed third crease line (191) disposed inside the third panel (154) and configured to define a boundary for the hole (45) of the sealed package (1); ,
With
The first crease line (63) borders the third panel (154) and is disposed on the opposite side of the second segment (201) with respect to the first segment (200). Basic unit according to claim 12, characterized in that it comprises a third segment (202).   As the second segment (201 ′) starts from the first segment (200) and proceeds along the first crease line (63), the second crease line (67) 12. Basic unit according to claim 10 or 11, characterized in that   It is arranged inside the first panel (153) and is configured to define a boundary for the hole (45 ') of the sealed package (1') and is intended to be pierced by a straw 15. Basic unit according to claim 14, characterized in that it comprises a closed third crease line (191 '). Located on each side of the first panel (153), once the basic unit (M, M ′) is folded, the second on each side of the finished package (1, 1 ′). A pair of said second panels (151) configured to define a wall (9) of
The first crease line (63) borders each second panel (151) and extends to both sides of the first segment (200), and once the basic unit (M, M ′) ) Comprising a pair of second segments (201, 201 ′) configured to define a respective first edge (17) when folded. Basic unit as described in any one of.

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