Packing box

Abstract

To provide a packaging box made of aluminum laminated paper that can easily bond a paste margin of the packaging box.SOLUTION: The present invention is a packaging box 1 made of aluminum laminated paper, a half-cut part 31a is formed in a paste margin 15 of the packaging box 1 in a shape of a broken line, thickness D of the half-cut part 31a is 0.25 to 0.55 mm, the length A of the half cut portion 31a is 0.2 to 2.0 mm, the half-cut parts 31a are arranged at a pitch C of 0.6 to 0.8 mm so that the thickness direction thereof is along an extending direction of the paste margin 15, and are arranged at an interval B of 0.15 to 2.5 mm so that the length direction thereof is along a direction perpendicular to the extending direction.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a packaging box made of aluminum-laminated paper. [Background technology]

[0002] Conventionally, other materials have been added to the surface of the paper substrate of the base paper that constitutes the packaging box to add functionality such as water resistance and moisture resistance to the packaging box, or to give the packaging box a luxurious feel by adding gloss.However, since the surface of the glue tab of such a packaging box is smooth, it may be difficult to adhere even if an adhesive is applied.

[0003] Therefore, for example, Patent Document 1 describes a carton blank that is coated or laminated with resin, in which the surface of the adhesive margin is roughened with an abrasive material to strengthen the adhesion at the adhesive margin. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 10-024927 Summary of the Invention [Problem to be solved by the invention]

[0005] In recent years, packaging boxes for pharmaceuticals, powdered food and beverages, etc., have come to be used that use aluminum foil-laminated paperboard (hereinafter also referred to as "aluminum-laminated paper"), which is made by laminating aluminum foil to a paper base material.However, even the glue margins of such packaging boxes can have smooth surfaces, making them difficult to adhere.

[0006] Here, if the roughening method described in Patent Document 1 is adopted, paper dust generated when scraping the surface of the face portion will remain on the adhesive surface, and a separate device will be required to remove the paper dust.

[0007] An object of the present invention is to provide a packaging box made of aluminum-laminated paper, the glue tab of which can be easily glued. [Means for solving the problem]

[0008] The packaging box according to the present invention is a packaging box made of aluminum-laminated paper, and half-cut portions are formed in the shape of broken lines in the adhesive tab of the packaging box, the thickness of the half-cut portions is 0.25 to 0.55 mm, the length of the half-cut portions is 0.2 to 2.0 mm, the half-cut portions are arranged at a pitch of 0.6 to 0.8 mm so that their thickness direction is along the extension direction of the adhesive tab, and they are arranged at intervals of 0.15 to 2.5 mm so that their length direction is along a direction perpendicular to the extension direction. [Effects of the Invention]

[0009] According to the present invention, half-cut portions that contribute to adhesion are arranged at a high density in the adhesive margin of a packaging box made of aluminum-laminated paper, making it possible to easily adhere overlapping surfaces together at the adhesive margin. [Brief explanation of the drawings]

[0010] [Figure 1] 1A and 1B are perspective views of a packaging box according to one embodiment of the present invention, in which FIG. 1A shows the front side and FIG. 1B shows the rear side. [Figure 2] 1 is a plan view of a blank of a packaging box according to an embodiment of the present invention when the packaging box is unfolded. FIG. [Figure 3] 3 is an enlarged view of the arrangement pattern of half-cut portions in part III shown in FIG. 2. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an embodiment of the present invention will be described in detail with reference to Figures 1 to 3. However, the present invention is not limited to this embodiment.

[0012] In this specification, the terms "top" and "bottom" refer to the surfaces defined by the packaging box. However, these terms are used merely for convenience and do not, of course, define absolute positions in the direction of gravity. The same applies to terms such as "top" and "bottom." The term "bottom" refers to the substantial part of the packaging box located at the "bottom." Meanwhile, the term "top" refers to the substantial part covering the top.

[0013] Furthermore, in this specification and the claims, "rectangle" includes rectangular and approximately rectangular shapes as well as squares and approximately squares, and "rectangular prism" includes rectangular and approximately rectangular prisms as well as cubes and approximately cubes.

[0014] Furthermore, in the description of this specification, the "height direction" refers to the direction perpendicular to the surface of the first fold-in flap portion (or second fold-in flap portion) of the packaging box, the "width direction" refers to the direction parallel to the edge along which the first fold-in flap portion (or second fold-in flap portion) of the packaging box is folded, and the "length direction" refers to the direction parallel to the edge along which the inner side flap portion (or outer side flap portion) of the packaging box is folded. The "height direction," "width direction," and "length direction" are each perpendicular to each other.

[0015] In the description of this specification, the term "package" refers to a packaging box in which an article is contained, particularly a packaging box in which an article has been contained and packed but which has not yet been opened.

[0016] In this specification and claims, the term "half-cut portion" refers to a portion that contributes to the adhesion of the glue tab and is cut from the front side of the base paper and does not penetrate to the back side. Also, in this specification and claims, the term "glue tab" refers to a surface portion to which adhesive is applied and which is adhered to an opposing surface portion, and includes a fold-in flap portion and a side inner flap portion.

[0017] <Packaging box composition> Fig. 1 is a perspective view of a packaging box 1 according to one embodiment of the present invention, with Fig. 1(a) showing the front side and Fig. 1(b) showing the back side. Fig. 2 is a plan view of a blank 1B of the packaging box 1 according to this embodiment when it is unfolded, and Fig. 3 is an enlarged view of the arrangement pattern 31 of the half-cut portions 31a in part III shown in Fig. 2.

[0018] The packaging box 1 according to this embodiment is a paper container made of aluminum-laminated paper, and the packaging body according to this embodiment is configured by storing a plurality of items (in this embodiment, powdered food and drink packaged in flexible, elongated bags) in the packaging box 1. The powdered food and drink is, for example, edible powder such as instant drinks or supplements. The packaging box 1 according to the present invention can be used for delivery.

[0019] The packaging box 1 according to the present invention has half-cut portions 31a, each having a predetermined thickness and length, formed at predetermined intervals in the shape of broken lines on the adhesive margin. The half-cut portions 31a according to this embodiment are formed on the side of the adhesive margin where the aluminum foil is attached, and as shown in Figures 2 and 3, the half-cut portions 31a are arranged in multiple rows to form an arrangement pattern 31. The inventors have discovered that in order to achieve the effect of the present invention of easily adhering the adhesive margin of the packaging box 1 made of aluminum laminated paper, it is preferable that the thickness D of the half-cut portions 31a is 0.25 to 0.55 mm and the length A of the half-cut portions 31a is 0.2 to 2.0 mm, and that if the length A exceeds 2.0 mm, there is a risk of the aluminum laminated paper surface peeling or turning up. Furthermore, it was discovered that the half-cut portions 31a are preferably arranged at a pitch C of 0.6 to 0.8 mm so that their thickness direction is aligned with the extension direction of the glue tab, and at intervals B of 0.15 to 2.5 mm so that their length direction is aligned with the extension direction. The pitch C is the distance between the centers of the half-cut portions 31a. In FIG. 3, the half-cut portions 31a are shown as rectangular, but this is not limited to this, and shapes other than rectangular may also be used in the present invention. Furthermore, although the arrangement pattern 31 of the half-cut portions 31a is aligned in FIGS. 2 and 3, the half-cut portions 31a may also be arranged with vertical or horizontal offsets.

[0020] 1 and 2, the packaging box 1 according to this embodiment has a rectangular parallelepiped shape as a whole, including a rectangular first surface (top surface) 11, a rectangular second surface (front surface) 12 and a rectangular third surface (back surface) 13 that are bent at right angles from a pair of first and second edges L1 and L2 of the first surface 11 and face each other, and a fourth surface (bottom surface) 14 that is bent at right angles from a seventh edge L7 of the third surface 13 that is parallel to the second edge L2 and faces the first surface 11. An adhesive tab (fifth surface) 15 extends from a tenth edge L10 of the second surface 12 that is parallel to the first edge L1, bent at right angles, and faces the first surface 11. The adhesive tab (fifth surface) 15 is adhered to the fourth surface 14 via an adhesive applied to the half-cut portion 31a. For example, a hot melt adhesive may be used as the adhesive.

[0021] Furthermore, in the packaging box 1 according to this embodiment, as shown in Figures 1 and 2, the first surface portion 11 further has a pair of first fold-in flap portions 211, 212 that are bent at right angles from the pair of third and fourth edges L3 and L4, respectively, and face each other; the second surface portion 12 further has a pair of inner side flap portions 221, 222 that are bent at right angles from the pair of fifth and sixth edges L5 and L6, respectively, and face each other; the third surface portion 13 further has a pair of outer side flap portions (left side portion, right side portion) 231, 232 that are bent at right angles from the pair of eighth and ninth edges L8 and L9, respectively, and face each other; and the fifth surface portion 15, which is the glue tab on which the half-cut portion 31a is formed, further has a pair of second fold-in flap portions 251, 252 that are bent at right angles from the pair of eleventh and twelfth edges L11 and L12, respectively, and face each other.

[0022] In the packaging box 1 according to this embodiment, a plurality of half-cut portions 31a (not shown) are formed on the outer surfaces (surfaces to which aluminum foil is attached) of the pair of inner side flap portions 221, 222, the pair of first fold-in flap portions 211, 212, and the pair of second fold-in flap portions 251, 252, and adhesive is applied to the half-cut portions 31a, and the outer surfaces are bonded to the inner surfaces (surfaces to which aluminum foil is not attached) of the pair of outer side flap portions 231, 232. In this case, the pair of inner side flap portions 221, 222, the pair of first fold-in flap portions 211, 212, and the pair of second fold-in flap portions 251, 252 also serve as glue margins.

[0023] In this embodiment, as shown in FIGS. 1 to 3 , a zipper section 41 formed by a score line is formed on the third surface 13, with notches at the tear start point and tear end point, parallel to the longitudinal direction of the packaging box 1. A pair of opening perforations 42 is formed continuously at both upper ends of the zipper section 41 on the pair of outer side flap sections 231, 232. A pair of opening perforations 42 is also formed on the pair of inner side flap sections 221, 222 at positions corresponding to the pair of opening perforations 42. Furthermore, a hinge section 43 is provided on the fourth surface 14 so as to connect both ends of the continuously formed opening perforations 42. In this embodiment, the hinge section 43 is formed by a crease. In the present invention, the hinge section 43 may be formed only by perforations without creasing, or may be formed by a lead crease. With these configurations, when opening the packaging box 1, the user can easily take out the stored items by first removing the zipper portion 41, breaking the opening perforation 42, and folding it back at the hinge portion 43. The shape of the zipper portion 41 is not limited to a straight line, and may include a curve.

[0024] <Composition of packaging box blanks> In this embodiment, as shown in FIG. 2 , the blank 1B of the packaging box 1 includes a rectangular first surface portion 11 having a first folding line L1 and a second folding line L2 that are parallel to each other, and a third folding line L3 and a fourth folding line L4 that are parallel to each other and perpendicular to the first folding line L1, a second surface portion 12 that has a tenth folding line L10 that is parallel to the first folding line L1, and a fifth folding line L5 and a sixth folding line L6 that are parallel to each other and perpendicular to the first folding line L1, and is connected to the first surface portion 11 via the first folding line L1, and The sheet has a seventh folding line L7 parallel to the folding line L2, and eighth folding lines L8 and ninth folding lines L9 that are parallel to each other and perpendicular to the second folding line L2, a third folding line 13 connected to the first folding line 11 via the second folding line L2, a fourth folding line 14 connected to the third folding line 13 via the seventh folding line L7, and a fifth folding line (glue) 15 that has eleventh folding lines L11 and twelfth folding lines L12 that are parallel to each other and perpendicular to the tenth folding line L10, and is connected to the second folding line 12 via the tenth folding line L10.

[0025] In addition, in this embodiment, the blank 1B of the packaging box 1, as shown in Figure 2, has a pair of first folding flap portions 211, 212 connected to the first surface portion 11 via the third folding line L3 and the fourth folding line L4, respectively, a pair of side inner flap portions 221, 222 connected to the second surface portion 12 via the fifth folding line L5 and the sixth folding line L6, a pair of side outer flap portions 231, 232 connected to the third surface portion 13 via the eighth folding line L8 and the ninth folding line L9, respectively, and a pair of second folding flap portions 251, 252 connected to the fifth surface portion 15 via the eleventh folding line L11 and the twelfth folding line L12, respectively.

[0026] As described above, the fifth surface portion (glue) 15 has the half-cut portions 31a formed as an arrangement pattern 31 in which a plurality of rows are arranged in a broken line.

[0027] Conventionally, other materials have been added to the surface of the paper substrate of the base paper that constitutes the packaging box to add functionality such as water resistance and moisture resistance to the packaging box, or to give the packaging box a luxurious feel by adding gloss.However, since the surface of the glue tab of such a packaging box is smooth, it may be difficult to adhere even if an adhesive is applied.

[0028] Therefore, for example, Patent Document 1 describes a carton blank that is coated or laminated with resin, in which the surface of the adhesive margin is roughened with an abrasive material to strengthen the adhesion at the adhesive margin.

[0029] In recent years, packaging boxes made of aluminum-laminated paper have come into use as packaging boxes for pharmaceuticals and the like, and it is thought that even the glue tabs of such packaging boxes may have smooth surfaces that make them difficult to adhere.

[0030] Here, if the roughening method described in Patent Document 1 is adopted, paper dust generated when scraping the surface of the face portion will remain on the adhesive surface, and a separate device will be required to remove the paper dust.

[0031] According to this embodiment, half-cut portions 31a are formed in the glue tab 15 of the packaging box 1 made of aluminum-laminated paper, which allows adhesive to penetrate into the paper at the half-cut portions 31a, making it easier to bond the overlapping surfaces at the glue tab 15. In addition, the half-cut portions 31a that contribute to such bonding are finely spaced in a dashed line and arranged densely, making it possible to easily and firmly bond the overlapping surfaces at the glue tab 15. Furthermore, because the half-cut portions 31a are formed in the glue tab 15, there is no need to scrape the surfaces of the surfaces, which makes it less likely that paper dust will be generated.

[0032] In order to achieve the effects of the present invention, it is preferable that the length of the first surface portion 11 in the extending direction of the adhesive tab 15 (i.e., the length in the width direction of the packaging box 1) is 30 mm or less. This is a dimension that takes into consideration so-called non-standard mail and mail delivery. In addition, in order to achieve the effects of the present invention, it is preferable that the arrangement density of the half-cut portions 31a is 28 to 42 pieces / cm2 By arranging the half-cut portions 31a at a high density in this manner, it is possible to improve the adhesive strength at the overlap.

[0033] <Other> The present invention is not limited to the above-described embodiment or the modifications described throughout, and appropriate changes and modifications can be made without departing from the technical concept of the present invention.

[0034] For example, although the packaging box 1 according to the above embodiment has a rectangular parallelepiped shape, the present invention is not limited to this and can be used for packaging boxes of various shapes having an adhesive margin.

[0035] In addition, the arrangement pattern 31 of the half-cut portions 31a formed in the glue margin of the packaging box 1 according to the present invention can be various arrangement patterns, such as arranging the half-cut portions 31a alternately or in a staggered pattern, as long as the effects of the present invention are achieved.

[0036] In addition, in the packaging box 1 according to the above embodiment, half-cut portions 31a are formed in the fifth surface portion 15, the pair of inner side flap portions 221, 222, the pair of first fold-in flap portions 211, 212, and the pair of second fold-in flap portions 251, 252, but in the present invention, the arrangement patterns may be the same or different from each other. [Explanation of symbols]

[0037] 1 packaging box 1B Packaging box blank 11 1st surface section (top section) 12 Second surface section (front section) 13 Third side (back side) 14 4th surface part (bottom part) 15 Fifth side (glue allowance) 211, 212 First folding flap part 251, 252 Second folding flap part 221, 222 Side inner flap part 231, 232 outer side flap part (left side part, right side part) 31a Half cut part 31 Half-cut part arrangement pattern 41 Zipper section 42 Opening perforation 43 Hinge part L1 First fold line (first edge) L2 Second fold line (second edge) L3 Third fold line (third edge) L4 4th fold line (4th edge) L5 5th fold line (5th edge) L6 6th fold line (6th edge) L7 7th fold line (7th edge) L8 8th fold line (8th edge) L9 9th fold line (9th edge) L10 10th fold line (10th edge) L11 11th fold line (11th edge) L12 12th fold line (12th edge)

Claims

1. A packaging box made of aluminum-laminated paper, A half-cut portion is formed in a dashed line shape on the adhesive margin of the packaging box, the thickness of the half-cut portion is 0.25 to 0.55 mm, and the length of the half-cut portion is 0.2 to 2.0 mm; The half-cut portions are arranged at a pitch of 0.6 to 0.8 mm so that their thickness direction is along the extension direction of the glue tab, and are arranged at intervals of 0.15 to 2.5 mm so that their length direction is along a direction perpendicular to the extension direction.

2. The packaging box has a rectangular parallelepiped shape as a whole, including a rectangular first surface portion, rectangular second and third surface portions that are bent at right angles from a pair of first and second edges of the first surface portion and face each other, and a fourth surface portion that is bent at right angles from an edge of the third surface portion that is parallel to the second edge and faces the first surface portion, 2. The packaging box according to claim 1, wherein the adhesive tab extends from an edge of the second surface portion parallel to the second edge, bends at a right angle, and is bonded to the fourth surface portion via an adhesive applied to the half-cut portion.

3. 3. The packaging box according to claim 2, wherein the length of the first surface portion in the extending direction of the adhesive tab is 30 mm or less.

4. The arrangement density of the half-cut portions is 28 to 42 pieces / cm 2 The packaging box according to any one of claims 1 to 3, characterized in that:

5. The delivery packaging box according to any one of claims 1 to 4.

6. A package comprising a plurality of powdered food and drink products packaged in elongated bags housed in the packaging box according to any one of claims 1 to 5.

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