Packaging blank for forming a package and package formed from the packaging blank
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- TETRA LAVAL HOLDINGS & FINANCE SA
- Filing Date
- 2023-06-26
- Publication Date
- 2026-06-23
AI Technical Summary
There is a desire to improve packaging blanks to prevent the formation of wild crease lines, which can occur during the formation of packages from laminated packaging materials, particularly in the production of pourable food products like UHT milk and fruit juice.
The packaging blank is designed with specific fold patterns and layer structures, including a fibrous material, heat-seal plastic layers, and a gas and light barrier material, with fold lines strategically positioned to minimize the formation of wild crease lines, ensuring precise package formation.
The solution effectively reduces and eliminates the risk of disrupted fold lines, resulting in more reliable and consistent package production, enhancing the manufacturing process efficiency and product quality.
Smart Images
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Abstract
Description
Technical Field
[0001] The present invention relates to a packaging blank, particularly having a multilayer structure, for forming a package filled with a pourable product, particularly a pourable food product.
[0002] Advantageously, the present invention relates to a package filled with a pourable product, particularly a pourable food product, formed from a packaging blank.
Background Art
[0003] As is well known, many liquid or pourable food products, such as fruit juice, UHT (ultra-high temperature treated) milk, wine, tomato sauce, etc., are sold in packages made of sterilized packaging materials.
[0004] As a typical example, there is a parallelepiped package for pourable food products known as Tetra Brik Aseptic (registered trademark), which is made by sealing and folding a laminated packaging blank. The packaging blank has a multilayer structure with, for example, a fiber-based layer of paper or cardboard and layers of heat-sealing plastic material, such as polyethylene, covering both sides thereof. In the case of an aseptic package for long-term storage products such as UHT milk, the packaging blank also includes a layer of oxygen barrier material, such as aluminum foil (oxygen barrier layer), which is laid on top of the layer of heat-sealing plastic material and further covered with another layer of heat-sealing plastic material to finally form the inner surface of the package that comes into contact with the food.
[0005] This type of package is usually manufactured by a fully automatic packaging device, which forms a package from each packaging blank. These packaging blanks can be provided in the form of a single packaging blank or in the form of a web formed from a plurality of continuously arranged packaging blanks.
[0006] When the packaging device is designed to form packages from a web, the packaging device advances and sterilizes the web, then forms the web into a tube and fills it with a pourable product, and then forms the tube into individual sealed packages.
[0007] To facilitate package formation and define the shape of the package, the packaging blank is provided with a plurality of score lines.
[0008] Typically, the packaging blank has a rectangular shape and is delimited by a first longitudinal boundary edge, a second longitudinal boundary edge, a first transverse boundary edge, and a second transverse boundary edge.
[0009] A typical packaging blank includes a top score pattern configured to form the top of the package and a bottom score pattern configured to form the bottom of the package. The top score pattern includes at least a first transverse score line and a second transverse score line, and the bottom score pattern includes at least a third transverse score line and a fourth transverse score line. Further, the first transverse score line and the second transverse score line, and the third transverse score line and the fourth transverse score line are equidistantly arranged from the first longitudinal boundary edge and the second longitudinal boundary edge.
[0010] The packaging blanks are manufactured in a converting factory where the base web of the packaging material is formed, and the base web of the packaging material is known to produce a web of a plurality of packaging blanks after the execution of a cutting process. In other words, the base web of the packaging material includes a plurality of packaging blank webs that are interconnected and arranged in parallel before being cut in a direction parallel to its longitudinal extension.
[0011] Furthermore, various score lines are formed using a scoring tool before the cutting process. More specifically, the scoring tool - a first scoring element associated with a first package portion of the base web of the packaging material and generating a first web of the packaging blank; - A second creasing element associated with a second package portion connected to a first package portion of a base web of a packaging material, the second creasing element generating a second web of a packaging blank; comprising at least.
[0012] The first package portion of the base web of the packaging material and the second package portion of the web of the packaging material are arranged transversely, in particular perpendicularly, along the longitudinal extension of the web of the packaging material, i.e., adjacent to each other.
[0013] The first creasing element and the second creasing element are arranged offset with respect to each other such that, for example, each top crease pattern of the first package portion is offset along the direction of travel of the base web of the packaging material with respect to each top crease pattern of the second package portion.
[0014] So-called wild crease lines can be generated while the creasing tool acts on the base web of the packaging material. These wild crease lines can spread, for example, from each first transverse crease line of the first package portion towards the second package portion.
[0015] There is a desire in this field to further improve the packaging blank so as to prevent the formation of wild crease lines as much as possible.
Summary of the Invention
Problems to be Solved by the Invention
[0016] An object of the present invention is to provide an improved packaging blank.
[0017] Another object of the present invention is to provide an improved package formed from the packaging blank.
[0018] According to the present invention, there is provided a packaging blank as claimed in claim 1.
[0019] Preferred non-limiting embodiments of the packaging blank are described in each of the dependent claims.
[0020] According to the present invention, there is provided a package according to claim 15.
Means for Solving the Problems
[0021] One non-limiting embodiment of the present invention will be illustratively described with reference to the accompanying drawings.
Brief Description of the Drawings
[0022]
Figure 1
Figure 2
Modes for Carrying Out the Invention
[0023] Reference numeral 1 generally indicates a packaging machine for manufacturing a (sealed) package 37 of a pourable product, particularly a pourable food product such as pasteurized milk, fruit juice, wine, tomato sauce, etc., from respective packaging blanks 2 (see FIG. 2).
[0024] Preferably, the packaging blank 2 may have a multi-layer structure.
[0025] More specifically, each packaging blank 2 may comprise at least one layer of a fibrous material, such as a layer of paper or cardboard, and at least two heat-seal plastic material layers, such as polyethylene, interposed between the layers of fibrous material.
[0026] One of these two heat-seal plastic material layers may define the inner surface of the package 37 obtained from the packaging blank 2 and ultimately contact the pourable product.
[0027] Preferably, each packaging blank 2 comprises a layer of gas and light barrier material, such as an aluminum foil or an ethylene vinyl alcohol (EVOH) film, and is arranged in particular between one layer of heat-sealing plastic material and a layer of fibrous material. Preferably, although not necessarily so, the packaging blank 2 may comprise a further layer of heat-sealing plastic material intervening between the layer of gas and light barrier material and the layer of fibrous material.
[0028] According to the example shown in FIG. 1, the packaging blank 2 is provided in the form of a web 3.
[0029] More specifically, the web 3 may be formed from a plurality of packaging blanks 2 arranged in succession.
[0030] In other words, the packaging blanks 2 arranged in succession define a plurality of repeating units of the web 3. In particular, each repeating unit (i.e., each packaging blank 2) forms a precursor of one package 37. In other words, the packaging machine 1 may be configured to produce packages 37 from the web 3, and each package 37 is produced from one respective packaging blank 2.
[0031] In particular, each packaging blank 31 may be provided with a desired pattern / decoration.
[0032] Each packaging blank 2 may be designed to form a package 37, which package 37 - In particular, a first package portion 38 having a first wall; - In particular, a second package portion 40 having a second wall and offset from the first package portion 38 along the longitudinal direction of the package 37; and - In particular, an intermediate package portion 39 having side walls and (fixedly) connected to the first package portion, in particular to the first wall, and extending from the first package portion may comprise.
[0033] More specifically, each first package portion 38 and each second package portion 40 may define the bottom and top of their respective packages, respectively.
[0034] Furthermore, each intermediate package portion 39 may be interposed between its respective first package portion 38 and its respective second package portion 40.
[0035] In particular, when each package 37 is in its nominal position (i.e., when being used in the way intended by the user), the user recognizes the first package portion 38 as the bottom and the second package portion 40 as the top.
[0036] Preferably, each second package portion 40 is defined as the portion of the package that is operable to pour out a pourable product. For example, the second package portion 40 may be operated to obtain an opening that serves as a spout, or the second package portion 40 may be provided with an operable opening device (e.g., a cap).
[0037] Preferably, each intermediate package portion 39 may be defined to be gripped by the user.
[0038] More particularly, each first wall defines a support surface of its respective package, and this support surface may be designed to contact a support, such as a shelf, when, for example, being exposed in a place of sale during use, or when being stored.
[0039] In particular, each first wall may define the bottom wall of its respective package 37 (i.e., when each package 37 is placed on a support, the first wall contacts the support).
[0040] More specifically, each side wall may be rounded, or may have at least one rounded portion.
[0041] Furthermore, each side wall may be interposed between the respective first wall and the respective second wall.
[0042] In particular, when the package 37 is disposed on the support, the second wall may define the top wall.
[0043] According to some possible embodiments, the first wall and the second wall may be parallel to each other. Alternatively, the first wall and the second wall may be inclined with respect to each other. In particular, the second wall may define an inclined top, and may define a part of a gable top.
[0044] Referring particularly to FIG. 2, the packaging blank 2 - a top fold pattern 4 configured to form the respective second package portion 40 of each package 37, preferably the top portion, more preferably the top wall and the top flap; and - a bottom fold pattern 5 configured to form the respective first package portion 38 of each package 37, preferably the bottom, more preferably the bottom wall and the bottom flap may be provided.
[0045] More specifically, each top fold pattern 4 may define a respective top region 6, and each bottom fold pattern 5 may define a respective bottom region 7 of each packaging blank 2.
[0046] More specifically, each packaging blank 2 - a first longitudinal boundary edge 8 and a second longitudinal boundary edge 9 spaced apart from each other along a first direction D1 transverse, preferably perpendicular, to the longitudinal central axis A of each packaging blank 2; and - a first transverse boundary edge 10 and a second transverse boundary edge 11 spaced apart from each other along a second direction D2 parallel to the longitudinal central axis A of each packaging blank 2, and / or along a direction transverse, preferably perpendicular, to the first direction D1, and / or along a direction transverse, preferably perpendicular, to the transverse central axis B of each packaging blank 2 may be provided.
[0047] Preferably, each lateral central axis B may be perpendicular to the respective longitudinal central axis A.
[0048] Preferably, each longitudinal central axis A may intersect with each lateral central axis B within the center point of each packaging blank 2.
[0049] More specifically, each packaging blank 2 may extend within a plane spanned by the longitudinal central axis A and the lateral central axis B.
[0050] Furthermore, each packaging blank 2 may have a (substantially) two-dimensional shape, that is, the respective extensions along the longitudinal central axis A and the lateral central axis B of each packaging blank 2 are significantly larger than the thickness of the packaging blank 2.
[0051] Preferably, each packaging blank 2 may have a rectangular or square shape.
[0052] Furthermore, the first direction D1 may be parallel to the lateral central axis B.
[0053] Furthermore, each first longitudinal boundary edge 8 and each second longitudinal boundary edge 9 may be connected to and interposed between each first lateral boundary edge 10 and each second lateral boundary edge 11.
[0054] Preferably, each first longitudinal boundary edge 8 and each second longitudinal boundary edge 9 may be arranged at an angle of approximately 90 degrees with respect to each first lateral boundary edge 10 and each second lateral boundary edge 11.
[0055] It should be noted that when each packaging blank 2 is arranged alone, that is, separated from other packaging blanks 2, each first longitudinal boundary edge 8, each second longitudinal boundary edge 9, each first lateral boundary edge 10, and each second lateral boundary edge 11 may be actual edges.
[0056] When the packaging blank 2 is arranged in the form of a web 3, each first longitudinal boundary edge 8 and each second longitudinal boundary edge 9 are actual edges (shown in FIG. 2), and each first transverse boundary edge 10 and each second transverse boundary edge 11 can be virtual edges. In particular, each first transverse boundary edge 10 of one packaging blank 2 may be adjacent to or coincide with each second transverse boundary edge 11 of another packaging blank 2.
[0057] Alternatively, the first transverse boundary edge 10 and the second transverse boundary edge 11 may each be an actual edge, and the first longitudinal boundary edge 8 and the second longitudinal boundary edge 9 may each be a virtual edge. In particular, each first longitudinal boundary edge 8 of one packaging blank 2 may be adjacent to each second longitudinal boundary edge 9 of another packaging blank 2.
[0058] Furthermore, each longitudinal central axis A may define the longitudinal central axis of each package 37 formed from each packaging blank 2.
[0059] In particular, referring to FIG. 2, each top fold pattern 4 includes at least a first straight fold line 15 and a second straight fold line 16 that extend transversely with respect to the longitudinal central axis A of each packaging blank 2.
[0060] Preferably, each first straight fold line 15 and each second straight fold line 16 are offset from each other along the second direction D2.
[0061] Preferably, each first transverse fold line 15 is interposed between each first transverse boundary edge 10 and the second transverse fold line 16. In other words, each first transverse fold line 15 is closer to each first transverse boundary edge 10 than each second transverse fold line 16.
[0062] According to some preferred non-limiting embodiments, no additional transverse fold lines crossing the longitudinal central axis A are interposed between each first transverse boundary edge 10 and each first transverse fold line 15.
[0063] Referring particularly to FIG. 2, each bottom fold pattern 5 may include at least a third lateral fold line 17 and a fourth lateral fold line 18 that extend laterally with respect to each longitudinal central axis A of each packaging blank 2.
[0064] Preferably, each third lateral fold line 17 and each fourth lateral fold line 18 are offset from each other along the second direction D2.
[0065] Preferably, each third lateral fold line 17 is interposed between each second lateral boundary edge 11 and each fourth lateral fold line 18. In other words, each third lateral fold line 17 is closer to each second lateral boundary edge 11 than each fourth lateral fold line 18.
[0066] According to some preferred non-limiting embodiments, no additional lateral fold lines crossing each longitudinal central axis A are interposed between each second lateral boundary edge 11 and each third lateral fold line 17.
[0067] According to some preferred non-limiting embodiments, each first lateral fold line 15 and / or each third lateral fold line 17 may be parallel to each first lateral boundary edge 10 and each second lateral boundary edge 11.
[0068] More specifically, each first lateral fold line 15, each second lateral fold line 16, each third lateral fold line 17, and each fourth lateral fold line 18 may extend between each first end portion 19 facing and / or adjacent to each first longitudinal boundary edge 8 and each second end portion 20 facing and / or adjacent to each second longitudinal boundary edge 9.
[0069] According to some possible non-limiting embodiments, one or more of the first lateral fold line 15, the second lateral fold line 16, the third lateral fold line 17, and the fourth lateral fold line 18 may extend continuously (i.e., without interruption within each fold line) or discontinuously (i.e., with one or more interruptions within each fold line) between the respective first end 19 and the respective second end 20.
[0070] In the specific illustrated embodiment, each first lateral fold line 15, each second lateral fold line 16, and each fourth lateral fold line 18 are continuous.
[0071] More specifically, in the specific example shown, each first lateral fold line 15 and each fourth lateral fold line 18 are continuous and have a straight shape, and each second lateral fold line 16 is continuous but has a more complex configuration.
[0072] Furthermore, according to this specific example, each third lateral fold line 17 is discontinuous and includes a plurality of straight portions 25.
[0073] Advantageously, each first end 19 of each second lateral fold line 16 is closer to the respective first longitudinal boundary edge 8 than each first end 19 of each first lateral fold line 15; and / or, - Each second end 20 of each lateral fold line 16 is closer to the second longitudinal boundary edge 9 than each second end 20 of each first lateral fold line 15; and / or, - Each first end 19 of each fourth lateral fold line 18 is closer to the first longitudinal boundary edge 8 than each first end 19 of each third lateral fold line 17; and / or, - Each second end 20 of each fourth lateral fold line 18 is closer to the second longitudinal boundary edge 9 than each second end 20 of each third lateral fold line 17.
[0074] In other words, each first end portion 19 of each first horizontal fold line 15 is closer to the longitudinal central axis A than each first end portion 19 of each second horizontal fold line 16; and / or, - Each second end portion 20 of each first horizontal fold line 15 is closer to the longitudinal central axis A than each second end portion 20 of each second horizontal fold line 16; and / or, - Each first end portion 19 of each third horizontal fold line 17 is closer to the longitudinal central axis A than each first end portion 19 of each fourth horizontal fold line 18; and / or, - Each second end portion 20 of each third horizontal fold line 17 is closer to the longitudinal central axis A than each second end portion 20 of each fourth horizontal fold line 18.
[0075] More specifically, each first distance d1 between each first end 19 of each first horizontal fold line 15 and each first longitudinal boundary edge 8 is greater than each second distance d2 between each first end 19 of each second horizontal fold line 16 and each first longitudinal boundary edge 8; and / or, - Each third distance d3 between each second end portion 20 of each first horizontal fold line 15 and each second longitudinal boundary edge 9 is greater than each fourth distance d4 between each second end portion 20 of each second horizontal fold line 16 and each second longitudinal boundary edge 9; and / or, - Each fifth distance d5 between each first end portion 19 of each third horizontal fold line 17 and each first longitudinal boundary edge 8 is greater than each sixth distance d6 between each first end portion 19 of each fourth horizontal fold line 18 and each first longitudinal boundary edge 8; and / or, - Each seventh distance d7 between each second end portion 20 of each third horizontal fold line 17 and each second longitudinal boundary edge 9 is greater than each eighth distance d8 between each second end portion 20 of each fourth horizontal fold line 18 and each second longitudinal boundary edge 9.
[0076] In particular, each first distance d1, each second distance d2, each third distance d3, each fourth distance d4, each fifth distance d5, each sixth distance d6, each seventh distance d7, and each eighth distance d8 are determined with respect to each reference axis perpendicular to each first longitudinal boundary edge 8 or each second longitudinal boundary edge 9.
[0077] According to some preferred non-limiting embodiments, no additional crease lines intervene between each first end portion 19 and each respective first longitudinal boundary edge 8, and / or no additional crease lines intervene between each second end portion 20 and each respective second longitudinal boundary edge 9.
[0078] In particular, referring to FIG. 2, each second lateral crease line 16 may include a plurality of first straight portions 21 perpendicular to each longitudinal central axis A and a plurality of second straight portions 22 transverse to each longitudinal central axis A.
[0079] More specifically, each top crease pattern 4 may include a plurality of additional crease lines 23, preferably some of which are parallel to each longitudinal central axis A and some of which are transverse to each longitudinal central axis A. In particular, the additional crease lines 23 may be interposed between each respective first lateral crease line 15 and each respective second lateral crease line 16.
[0080] More specifically, each bottom crease pattern 5 may include a plurality of additional crease lines 24, preferably some of which are parallel to each longitudinal central axis A and some of which are transverse to each longitudinal central axis A. In particular, the additional crease lines 24 may be interposed between each respective third lateral crease line 17 and each respective fourth lateral crease line 18.
[0081] In particular, referring to FIG. 2, each top crease pattern 4 and each bottom crease pattern 5 may delimit an intermediate region 28 designed to form the side walls of each respective package 37.
[0082] More specifically, each intermediate region 28 may be interposed between the respective second lateral fold lines 16 and the respective fourth lateral fold lines 18.
[0083] According to some preferred non - limiting embodiments, preferably, no fold line extending substantially parallel to the respective longitudinal central axis A extends from the respective second lateral fold line 16 to the respective fourth lateral fold line 18.
[0084] According to some preferred non - limiting embodiments, each packaging blank 2 may further include one or more first straight fold lines 29 extending from the respective second lateral fold line 16 into the respective intermediate region 28, and / or one or more second straight fold lines 30 extending from the respective fourth lateral fold line 18 into the respective intermediate region 28.
[0085] Advantageously, each first straight fold line 29 extends from each second lateral fold line 16 towards the respective fourth lateral fold line 18, but does not particularly extend to each fourth lateral fold line 18, and / or each second straight fold line 30 extends from each fourth lateral fold line 18 towards the respective second lateral fold line 16, but does not particularly extend to each second lateral fold line 16.
[0086] Preferably, each first straight fold line 29 and each second straight fold line 30 may extend along only a part of the respective intermediate region 28.
[0087] Preferably, each first straight fold line 29 may be parallel to the longitudinal central axis A.
[0088] According to some preferred non - limiting embodiments, each second straight fold line 30 may at least face the respective first straight fold line 29.
[0089] According to some preferred non - limiting embodiments, each packaging blank 2 may include a plurality of pairs of second straight fold lines 30.
[0090] Preferably, each of the second straight fold lines 30 of each pair is arranged to define a V-shape such that it is located on or at least adjacent to each of the fourth transverse fold lines 18.
[0091] According to some preferred non-limiting embodiments, each fold line of each packaging blank 2, such as the first transverse fold line 15 and / or the second transverse fold line 16 and / or the third transverse fold line 17 and / or the fourth transverse fold line 18 and / or the additional fold line 22 and / or the additional fold line 23 and / or the first straight fold line 29 and / or the second straight fold line 30, may define a plurality of panels. More specifically, the panels may provide the origin and / or correspond to various sections of each package 37.
[0092] More specifically, the panels may provide the origin and / or correspond to each first package portion 38, preferably each bottom, each intermediate package portion 39, and each second package portion 40, preferably each top.
[0093] Even more specifically, some of the panels may provide the origin and / or correspond to each first package portion 38, and / or some of the panels may indicate the origin and / or correspond to the second package portion 40, and / or some of the panels may indicate the origin and / or correspond to the intermediate package portion 39.
[0094] According to some preferred non-limiting embodiments, each first straight fold line 29 of each packaging blank 2 is arranged to correspond to each section defined by one or more respective panels, and the section corresponds to each corner of each second packaging portion 40, preferably each corner of each top portion, and more preferably each corner of each second wall.
[0095] According to some possible non-limiting embodiments, each second straight fold line 30 is arranged corresponding to each section defined by one or more of the panels, and each panel corresponds to each corner of each first package portion 38, preferably each corner of each bottom, more preferably each corner of each first wall.
[0096] In particular, the top fold pattern 4 defines the top of the package 38, preferably the panel forming the top wall.
[0097] Similarly, the bottom fold pattern 5 defines the bottom of the package 37, preferably the panel forming the bottom wall.
[0098] In this case, each first straight fold line 29 of the packaging blank 2 may be arranged corresponding to the sections defined by one or more respective panels, and these panels more preferably correspond to each corner at the top of the second wall.
[0099] Similarly, each second straight fold line 30 of the packaging blank 2 may be arranged corresponding to the sections defined by one or more of the panels, and each panel corresponds to the bottom, more preferably each corner of the first wall.
[0100] Referring particularly to FIG. 1, the packaging machine 1 may be configured to form each package 37 filled with a pourable product from the packaging blank 2, preferably when provided in the form of respective webs 3.
[0101] More specifically, the packaging machine 1 - a conveying device 41 configured to advance the web 3 along the web advancing path P to at least the tube forming station and form the web 3 into a tube 42 at the tube forming station; - a tube forming and sealing device 43 configured to form the tube 42 from the web 3 and seal the tube 42 longitudinally at the tube forming station; - A filling device 44 configured to fill a product that can be poured into the tube 42; - A package forming unit 45 configured to form, seal laterally, and cut the tube 42 to obtain the package 37; may include at least.
[0102] The advantages of the packaging blank 2 according to the present invention will be apparent from the foregoing description.
[0103] In particular, the applicant has noticed that by separating the first lateral fold line 15 and / or the third lateral fold line 17 further from the first longitudinal boundary edge 8 and / or the second longitudinal boundary edge 9 than the second lateral fold line 16 and the fourth lateral fold line 18, it is possible to at least reduce and ultimately eliminate the risk of forming a disrupted fold line.
[0104] Obviously, modifications may be made to the packaging blank 2 described herein without departing from the scope of protection defined by the appended claims.
Claims
1. A packaging blank (2) for forming a package (37) filled with a pourable product, The first longitudinal boundary edge (8) and the second longitudinal boundary edge (9) are spaced apart from each other along a first direction (D1) that crosses the longitudinal central axis (A) of the packaging blank (2), A first lateral boundary edge (10) and a second lateral boundary edge (11) are spaced apart from each other along a second direction (D2) parallel to the longitudinal central axis (A), A top fold pattern (4) configured to form the top portion of the package (37), A bottom fold pattern (5) is offset from the top fold pattern (4) along the second direction (D2) and is configured to form the bottom of the package (37), Equipped with, The top fold pattern (4) includes at least a first transverse fold line (15) and a second transverse fold line (16) extending laterally with respect to the longitudinal central axis (A) of the packaging blank (2), wherein the first transverse fold line (15) is interposed between the first transverse boundary edge (10) and the second transverse fold line (16), The bottom fold pattern (5) includes at least a third transverse fold line (17) and a fourth transverse fold line (18) extending laterally with respect to the longitudinal central axis (A) of the packaging blank (2), wherein the third transverse fold line (17) is interposed between the second transverse boundary edge (11) and the fourth transverse fold line (18), Each of the first transverse fold line (15), the second transverse fold line (16), the third transverse fold line (17), and the fourth transverse fold line (18) extends between the first end (19) facing the first longitudinal boundary edge (8) and the second end (20) facing the second longitudinal boundary edge (9). The first end (19) of the second transverse fold line (16) is closer to the first longitudinal boundary edge (8) than the first end (19) of the first transverse fold line (15), and / or The second end (20) of the second transverse fold line (16) is closer to the second longitudinal boundary edge (9) than the second end (20) of the first transverse fold line (15), and / or The first end (19) of the fourth transverse fold line (18) is closer to the first longitudinal boundary edge (8) than the first end (19) of the third transverse fold line (17), and / or The second end (20) of the fourth transverse fold line (18) is closer to the second longitudinal boundary edge (9) than the second end (20) of the third transverse fold line (17). Packaging blank (2).
2. The first distance (d1) between the first end (19) of the first transverse fold line (15) and the first longitudinal boundary edge (8) is greater than the second distance (d2) between the first end (19) of the second transverse fold line (16) and the first longitudinal boundary edge (8), and / or The third distance (d3) between the second end (20) of the first transverse fold line (15) and the second longitudinal boundary edge (9) is greater than the fourth distance (d4) between the second end (20) of the second transverse fold line (16) and the second longitudinal boundary edge (9), and / or The fifth distance (d5) between the first end (19) of the third transverse fold line (17) and the first longitudinal boundary edge (8) is greater than the sixth distance (d6) between the first end (19) of the fourth transverse fold line (18) and the first longitudinal boundary edge (8), and / or The seventh distance (d7) between the second end (20) of the third transverse fold line (17) and the second longitudinal boundary edge (9) is greater than the eighth distance (d8) between the second end (20) of the fourth transverse fold line (18) and the second longitudinal boundary edge (9). The packaging blank according to claim 1.
3. There is no further transverse fold line perpendicular to the longitudinal central axis (A) between the first transverse boundary edge (10) and the first transverse fold line (15), and / or There is no further lateral fold line interposed between the second lateral boundary edge (11) and the third lateral fold line (17) that is perpendicular to the longitudinal central axis (A). The packaging blank according to claim 1.
4. The second horizontal fold line (16) includes a plurality of first straight sections (21) perpendicular to the longitudinal central axis (A) and a plurality of second straight sections (22) perpendicular to the longitudinal central axis (A) and the first straight sections (21). The packaging blank according to claim 1.
5. The second transverse fold line (16) and the fourth transverse fold line (18) define an intermediate region (28) designed to form the side wall of the package (37). The packaging blank according to claim 1.
6. The longitudinal fold line does not extend from the second transverse fold line (16) to the fourth transverse fold line (18). The packaging blank according to claim 5.
7. The present invention further comprises one or more first straight fold lines (29) extending from the second transverse fold line (16) into the intermediate region (28) and / or one or more second straight fold lines (30) extending from the fourth transverse fold line (18) into the intermediate region (28). The packaging blank according to claim 5.
8. The first transverse fold line (15), the second transverse fold line (16), the third transverse fold line (17), and the fourth transverse fold line (18) define the origin and / or corresponding panel of at least the top and bottom of each package (37), The first straight fold line (29) corresponds to a section defined by one or more panels, the section corresponds to the top corner of the package (37), and / or the second straight fold line (30) corresponds to a section defined by one or more panels, the section corresponds to the bottom corner of the package (37), The packaging blank according to claim 7.
9. The top fold pattern (4) defines the panel that forms the top portion (37) of the package, and the bottom fold pattern (5) defines the panel that forms the bottom portion (27) of the package. The first straight fold line (29) corresponds to a section defined by one or more panels, the section corresponds to the top corner of the package (27), and / or the second straight fold line (30) corresponds to a section defined by one or more panels, the section corresponds to the bottom corner of the package (27), The packaging blank according to claim 7.
10. The top fold pattern (4) comprises a plurality of first additional fold lines (23) positioned between the first transverse fold line (15) and the second transverse fold line (16), and / or The bottom fold pattern (5) includes a plurality of second additional fold lines (24) positioned between the third transverse fold line (17) and the fourth transverse fold line (18), The packaging blank according to claim 1.
11. The first transverse fold line (15) and / or the third transverse fold line (17) are parallel to the first transverse boundary edge (10) and the second transverse boundary edge (11). The packaging blank according to claim 1.
12. No further fold lines are interposed between each first end (19) and the first longitudinal boundary edge (8), and / or no further fold lines are interposed between each second end (20) and the second longitudinal boundary edge (9). The packaging blank according to claim 1.
13. The packaging blank (2) has a multilayer structure. The packaging blank according to claim 1.
14. The packaging blank includes at least one layer of fibrous material and two layers of heat-sealable plastic material sandwiching the layer of fibrous material. The packaging blank according to claim 13.
15. A pourable product-filled package (37) formed from the packaging blank (2) described in claim 1.