JP5772507B2 - Paper container and blank - Google Patents

Description

  The present invention relates to a paper container and a blank that are sold in a state where confectionery or the like is contained. More specifically, the present invention relates to a paper container and a blank having a high barrier property, which are suitable when the contents do not like moisture.

  Displaying and selling confectionery and the like in a paper container has been conventionally performed. When the contents stored in the paper container are those that dislike moisture, such as chocolate and cookies, the individual chocolates, cookies, and the like are individually stored in a bag and stored in the paper container.

  By the way, such a paper container has a hexahedron shape including a front wall, a top wall, a back wall, a bottom wall, and a pair of side parts, but since there is no barrier property, Individually wrapped in a bag with barrier properties. Also, a blank made of a laminate having a hexahedron shape consisting of a front wall, a top wall, a back wall, a bottom wall, and a pair of side portions, and having at least a barrier layer and a paper layer, is folded. Paper containers are also known that are formed by folding and assembling along.

  Of these, the front wall has a front outer panel and a front inner panel affixed to the front outer panel. Moreover, the 1st folding part located in the front wall side and the 2nd folding part located in the back wall side are formed in the both sides of each side part. Of these, the first folding part is configured by laminating a front outer panel side first folding part and a front inner panel side first folding part. For this reason, since this 1st folding part becomes firm with a laminated structure, it may be unable to be easily shape | molded with a repulsive force at the time of shaping | molding.

JP-A-9-48426 Japanese Patent Laid-Open No. 11-20821 JP 2003-2324 A

  The present invention has been made in consideration of such points, and an object of the present invention is to provide a paper container and a blank that can maintain high barrier properties and can be easily molded.

  The present invention relates to a hexahedral paper container that is assembled by folding a blank made of a laminate having at least a barrier layer and a paper layer along a crease so that the paper layer is on the outer surface. A front wall having a front inner panel affixed to the front outer panel, a top wall, a rear wall, a bottom wall, and a pair of side portions, and a pair of opening halves on the outer surface side of the front outer panel A top wall side portion provided with a cut line and formed with a knob portion surrounded by a pair of opening half-cut lines on the bottom wall side of the front outer panel, each side portion extending from the top wall and having a sticking portion at the tip A panel and a bottom wall side panel that extends from the bottom wall and has a sticking portion at the tip; from both sides of each side, a front outer panel side first folding portion extending from the front outer panel; and a front inner panel From the front front panel side first folding part A first folding part folded between the top wall side panel and the bottom wall side panel, and a first folding part extending from the back wall and folded between the top wall side panel and the bottom wall side panel. 2 fold-in portions are provided, and the first fold portion and the second fold portion are formed by folding the blank along the crease, and the front inner panel among the folds forming the front outer panel side first fold portion. The paper container is characterized in that a crease perforation or a crease half-cut line is provided on an outer surface side of a portion overlapping the first side folding portion.

  The present invention is the paper container, wherein the front inner panel is provided with a reseal slit into which the knob is inserted.

  According to the present invention, the front outer panel side first folding part is connected to the front outer panel via a first crease, and is connected to the first triangle area via a pair of second creases. A pair of second triangular regions, and a crease in a portion overlapping the first fold portion on the front inner panel side of the first crease and a portion overlapping the first fold portion on the front inner panel side of the second fold rule A paper container having a perforation or a crease half-cut line.

  The present invention is characterized in that a crease perforation or a crease half-cut line is provided in a portion that overlaps the first fold portion on the front inner panel side among other ruled lines that define a pair of second triangular regions. It is a paper container.

  The present invention comprises a laminate having at least a barrier layer and a paper layer, and is folded and assembled along a crease so that the paper layer is on the outer surface. A panel, a front inner panel affixed to the front outer panel, a top wall, a rear wall, a bottom wall, and a pair of side portions, a pair of opening half-cut lines on the outer surface side of the front outer panel A top wall side panel having a knob portion surrounded by a pair of opening half-cut lines on the bottom wall side of the front outer panel, each side portion extending from the top wall and having a sticking portion at the tip; A front wall side panel that extends from the front wall and extends from the front panel, and a front wall panel first folding part that extends from the front panel. The side of the top wall A first folding part that is folded between the flannel and the bottom wall side panel, and a second folding part that extends from the back wall and is folded between the top wall side panel and the bottom wall side panel. The first folding part and the second folding part are provided with folding lines for folding the blank, and the front inner panel side when the paper container is assembled among the folding lines forming the front outer panel side first folding part. The blank is characterized in that a crease perforation or a crease half-cut line is provided on the outer surface side of the portion overlapping the first folding part.

  The present invention is the blank characterized in that the front inner panel is provided with a reseal slit into which the knob is inserted.

  According to the present invention, the front outer panel side first folding part is connected to the front outer panel via a first crease, and is connected to the first triangle area via a pair of second creases. A pair of second triangular regions, and a crease in a portion overlapping the first fold portion on the front inner panel side of the first crease and a portion overlapping the first fold portion on the front inner panel side of the second fold rule A blank having a perforation or a crease half-cut line.

  According to the present invention, a crease perforation or a crease half-cut line is provided in a portion that overlaps the first fold portion on the front inner panel side among other ruled lines that define a pair of second triangular regions. A feature blank.

  As described above, a paper container is formed by folding a blank having barrier properties, and the first is folded between the top wall side panel and the bottom wall side panel on both sides of each side of the paper container. A folding part and a second folding part are formed. Of these, the first folding part is composed of a front outer panel side first folding part and a front inner panel side first folding part, and the folding line forming the front outer panel side first folding part includes a front inner flap side first folding part. A crease perforation or a crease half-cut line is provided in a portion overlapping with one fold-in part. For this reason, even if the 1st folding part has the laminated structure which consists of a front outside panel side 1st folding part and a front inside panel side 2nd folding part, a 1st folding part can be shape | molded easily, and The barrier property of the entire paper container can be maintained.

FIG. 1A is a perspective view showing the paper container according to the first embodiment of the present invention before opening, and FIG. 1B is a perspective view of the paper container showing a state in which a pair of side portions are raised. FIG. 2 is a perspective view showing a state in which the paper container shown in FIGS. 1A and 1B is opened. FIG. 3 is a development view of a blank constituting the paper container. FIG. 4 is a diagram illustrating a correspondence relationship between a corner portion of a paper container and a position on a blank. FIG. 5 is a diagram for explaining a laminated structure of blanks constituting a paper container. FIG. 6 is a diagram for explaining the second embodiment and corresponding to the enlarged view in FIG. 3. FIG. 7 is a diagram for explaining a third embodiment.

First Embodiment Next, a first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1A is a perspective view showing a paper container in an unopened state, FIG. 1B is a perspective view of the paper container showing a pair of side portions, and FIG. FIG. 3 is a perspective view showing a state in which the paper container 1 (a) is opened, and FIG. 3 is a development view of a blank constituting the paper container.

  As shown in FIGS. 1A, 1B, and 3, the paper container 10 includes a synthetic resin heat seal layer (also referred to as a seal layer) 5, a paper layer 6, an aluminum layer (barrier layer) 7, A blank 1 (see FIG. 5) made of a laminate having a heat seal layer (also referred to as a seal layer) 8 made of synthetic resin is applied to the creases a, b, c, d, 44a, 45a, 46a, 48a, 49a, etc. Such a paper container 10 has a hexahedron shape.

  That is, the paper container 10 is connected to the front wall 11 having the front outer panel 11a and the front inner panel 11b attached to the front outer panel 11a so as to overlap the front outer panel 11a, and the front outer panel 11a via the crease a. A top wall 12, a back wall 13 connected to the top wall 12 via a crease b, and a bottom wall 14 connected to the back wall 13 via a crease c. A crease d is provided between the front inner panel 11b.

  A pair of side portions 40, 40 are provided between the front wall 11 and the back wall 13. Each side portion 40 includes a top wall side panel 41 that extends from the top wall 12 and has a sticking portion 41a at the tip, and a bottom wall side panel 42 that extends from the bottom wall 14 and has a sticking portion 42a at the tip. doing. And the side part 40 is comprised by affixing the sticking part 41a of the top wall side panel 41 and the sticking part 42a of the bottom wall side panel 42 mutually.

  Further, on both sides of each side portion 40, there are provided a first folding portion 43 and a second folding portion 47 that are folded between the top wall side panel 41 and the bottom wall side panel 42.

  Among these, the 1st folding part 43 is located in the front wall 11 side, and the 2nd folding part 47 is located in the back wall 13 side.

  By the way, the paper container 10 is assembled from a single blank 1. In order to improve the sealing performance of such a paper container, the paper container 10 has various configurations described below.

  FIG. 4 shows the correspondence between the unfolded blank 1 and a paper container 10 formed by assembling the blank 1. The paper container 10 is a hexahedron and has a total of eight corner portions A to H. On the blank 1, all the locations A to H corresponding to these corner portions are not on the peripheral edge of the blank 1, but are located on the inner side.

  As a result of adopting such a configuration, in the paper container 10 after assembly, no gaps (openings) are generated in all the corner portions A to H, and therefore high sealing performance can be realized.

  In addition, the concrete folding method (arrangement of creases) of the blank 1 is not limited to the illustrated one.

(Configuration of blank 1)
FIG. 3 shows a developed view of the blank 1 constituting the paper container 10, and the paper container 10 shown in FIGS. 1A and 1B and FIG. 2 is constructed by assembling it as described above. In the present invention, the blank 1 includes at least the following elements.
(1) A front outer panel 11a and a front inner panel 11b constituting the front wall 11.
The front wall 11 in the assembled paper container 10 is configured by pasting the front outer panel 11a on the outer surface of the front inner panel 11b.
(2) Top wall 12.
The top wall 12 is connected to the front outer panel 11a through a crease a.
(3) The bottom wall 14.
The bottom wall 14 is connected to the front inner panel 11b via a crease d.
(4) Back wall 13.
The rear wall 13 faces the front wall 11 in the assembled paper container 10 and is connected to the top wall 12 via the crease b and to the bottom wall 14 via the crease c.
(5) Since the paper container 10 has a hexahedron, there are a pair of left and right side portions 40, 40 in addition to the wall portions. As described above, each side portion 40 is configured by attaching the attaching portion 41 a of the top wall side panel 41 and the attaching portion 42 a of the bottom wall side panel 42.

  Further, the front outer panel 11a is formed with two notches 21a and 21b spaced along the edge. Opening half-cut lines 22a and 22b extend from the notches 21a and 21b, respectively. The opening half-cut lines 22a and 22b initially extend in parallel to each other, extend in a direction away from the middle, and further extend in parallel on the top wall 12 to reach the crease b (see FIG. 3).

  On the front outer panel 11a, a region between the two notches 21a and 21b (a region sandwiched between parallel portions of the opening half-cut lines 22a and 22b) functions as the opening knob 25. That is, the consumer can pick the opening knob 25 and tear the paper container 10 upward along the opening half-cut lines 22a and 22b. After opening, the paper container 10 is resealed by inserting the opening knob 25 into the inside of the front inner panel 11b or by inserting the opening knob 25 into the reseal slit 31 described later. (See FIG. 2).

  The opening half-cut lines 22a and 22b are formed by cutting the heat seal layer 5 and the paper layer 6 on the outer surface without penetrating the blank 1 (see FIG. 5). In the example shown in FIG. 5, the half cut penetrates the paper layer 6, but it may be a half cut halfway through the paper layer 6.

  On the front inner panel 11b, as partially enlarged and shown in FIG. 3, the reseal slit 31, first peeling half-cut lines 32a and 32b, and second peeling half-cut lines 35a to 35a- c. These will be described.

(Re-sealing slit 31)
The reseal slit 31 is capable of resealing the paper container 10 after being opened, and is formed through the entire thickness of the blank 1 by the full cut portion shown in FIG. . As shown in an enlarged manner in FIG. 3, the reseal slit 31 includes an uncut continuous portion 31 ′ in the middle of the full cut portion.

  The continuous portion 31 ′ is provided to prevent the reseal slit 31 from being carelessly broken. In the illustrated example, the continuous portions 31 ′ are provided at two locations, but an appropriate number can be set.

(First peeling half-cut wires 32a and 32b)
Although two opening half-cut lines 22a and 22b are formed on the front outer flap 11a, two first peeling half-cut lines 32a and 32b are formed at positions corresponding to the two on the front inner flap 11b. Is forming.

  The first peeling half-cut lines 32a and 32b are easy to peel off the front outer flap 11a from the front inner flap 11b during the opening operation of the paper container 10 as in the case of the second peeling half-cut lines 35a to 35c described later. It is provided to do.

(Second peeling half-cut wires 35a to 35c)
At least one second peeling half-cut line 35a to 35c is formed along the reseal slit 31 on both sides thereof. In the example shown in FIG. 3, one second peeling half-cut line 35 a to 35 c is provided above the reseal slit 31 and two below the reseal slit 31, but at least 1 above and below the reseal slit 31. Other configurations may be used as long as each book exists.

  The second peeling half-cut lines 35a to 35c are provided in order to easily peel off the front outer flap 11a from the front inner flap 11b when the paper container 10 is opened.

  The presence of the plurality of second peeling half-cut lines 35a to 35c has a meaning of absorbing the positional deviation as in the case of the second embodiment described later. Details will be described later.

(Peeling layer 50)
In the front inner flap 11b shown partially enlarged in FIG. 3, the reseal slit 31 and the second peeling half-cut lines 35a to 35c extending in the horizontal direction all extend in the vertical direction. It extends across both of the first peeling half-cut lines 32a and 32b.

  A peeling layer 50 is provided in a region sandwiched between two first peeling half-cut lines 32a and 32b extending in the vertical direction on both sides except for the portion of the reseal slit 31. A region 50 shown in gray on the front inner flap 11b is a region where the release layer is disposed.

  Regarding the spread in the horizontal direction, it is sufficient that the release layer 50 exists in a region sandwiched between the first release half-cut lines 32a and 32b in the drawing.

  Regarding the spread in the vertical direction, it is sufficient to avoid the reseal slit 31 and cover the second peeling half-cut lines 35a to 35c.

  The peeling layer 50 is surrounded by the first peeling half-cut lines 32a and 32b and the second peeling half-cut lines 35a to 35c in order to ensure the sealing performance of the paper container 10 and facilitate the opening operation. It is provided in the area.

(Laminated structure, half cut, full cut (Fig. 5))
The laminated structure of the blank 1 is as follows. That is, as schematically shown in FIG. 5, the seal layers 5 and 8 are positioned on the outer surface and the inner surface of the blank 1, respectively. A paper layer 6 on the outer surface side and an aluminum layer 7 on the inner surface side are formed between the seal layers 5 and 8. When the paper container 10 is assembled, the seal layer 5 comes to the outside of the paper container 10 and the seal layer 8 comes to the inside of the paper container 10.

  Other layers may be included in the laminated structure as long as the seal layer is present on the outermost side and the inner side, and the aluminum layer 7 is present on the inner side than the paper layer between the two seal layers.

  The aluminum layer 7 gives the paper container 10 barrier properties against moisture, oxygen, etc. Therefore, it is preferable that the aluminum layer 7 is not cut. Therefore, the opening half-cut lines 22a and 22b, the first peeling half-cut lines 32a and 32b, and the second peeling half-cut lines 35a to 35c are all blank like the half-cut portions shown in FIG. The outer surface sealing layer 5 and the paper layer 6 are cut out without penetrating 1 (the aluminum layer 7 that provides barrier properties is not reached). In the illustrated example, the half cut penetrates the paper layer 6, but it may be a half cut halfway through the paper layer 6.

  Only the reseal slit 31 is configured as a full cut portion (see FIG. 5) that penetrates the entire thickness of the blank 1. However, when the paper container 10 is assembled, the peripheral region of the reseal slit 1 is closed with a seal by the seal layers 5 and 8, so that the sealing performance is not impaired. In addition, by providing an uncut continuous portion 31 ′ in the middle of the full cut portion constituting the reseal slit 31, the slit is prevented from being inadvertently opened.

  Next, the first folding part 43 and the second folding part 47 provided on both sides of each side part 40 will be described.

  Each first folding part 43 includes a front outer panel side first folding part 43A extending from the front outer panel 11a and a front inner panel side first folding part 43B extending from the front inner panel 11b. Folded between the wall side panel 41 and the bottom wall side panel 42.

  Further, as shown in FIG. 3, the front outer panel side first folding portion 43A has a first triangular region 44 connected to the front outer panel 11a via a first folding rule 44a, and a pair of the first triangular region 44. It has a pair of 2nd triangular area | regions 45 connected via the 2nd crease 45a.

  Each second triangular region 45 is partitioned by other creases 46a, and each second triangular region 45 is connected to the quadrangular pasting portion 46 via the other creases 46a. Each of the shape pasting portions 46 is pasted to the pasting portion 41a of the top wall side panel 41 and the front inner panel side first folding portion 43B described later.

  By the way, the front outer panel side first folding part 43A and the front inner panel side first folding part 43B constituting the first folding part 43 are stacked on each other so that the front outer panel side first folding part 43A comes to the outside. . In this case, the upper end edge of the front inner panel side first folding portion 43B reaches the vicinity of the apex 44b of the first triangular region 44 (see FIG. 3).

  For this reason, of the pair of second triangular regions 45 of the front outer panel side first folding portion 43A, the lower second triangular region 45 in FIG. 3 overlaps with the front inner panel side first folding portion 43B, and in FIG. The second triangular region 45 does not overlap with the front inner panel side folding portion 43B.

  In this case, the first crease 44a that divides the first triangular area 44 of the first fold portion 43A on the front outer panel side, the second crease 45a that divides the pair of second triangular areas 45, and the other creases 46a. Are provided with a crease perforation or a crease half-cut line 55 at a portion overlapping the front inner panel side first folding portion 43B.

  In this way, among the first crease 44a, the second crease 45a, and the other crease 46a provided in the front outer panel side first fold part 43A, the fold is overlapped with the front inner panel side first fold part 43B. A ruled perforation or a crease half-cut line 55 is provided. For this reason, even if the front outer panel side first folding part 43A and the front inner panel side first folding part 43B are laminated with each other and this part is firmly constructed with a laminated structure, the crease perforation or the crease half The first folding part 43 can be easily formed by the cut line 55, and the first folding part 43 can be easily folded between the top wall side panel 41 and the bottom side panel 42.

  The second folding part 47 is connected to the back wall 13 via a first crease 48a, and is connected to the first triangle area 48 via a pair of second creases 49a. And a pair of second triangular regions 49.

  Next, the operation of the present embodiment having such a configuration will be described.

  First, a blank 1 having the above-described layer configuration is prepared.

  Next, the blank 1 is folded along the creases a, b, c, d, and the front outer panel 11a and the front inner panel 11b are overlapped and pasted.

  Next, after assembling the blank 1 and storing the contents, the blank 1 is folded along the creases 44a, 45a, and 46a, whereby the front outer panel side first folding portion 43A and the front inner panel side first folding A first folding part 43 including the part 43B is formed. At the same time, the blank 1 is folded along the creases 48a and 49a to form the second folding part 47.

  Thereafter, the first folding part 43 and the second folding part 47 are folded between the top wall side panel 41 and the bottom wall side panel 42, respectively, and the pasting part 41a of the top wall side panel 41 and the bottom wall side panel A pair of side parts 40 and 40 are formed by affixing 42 affixing parts 42a.

  In this way, the hexahedral paper container 10 can be formed.

  By the way, a crease sewing machine is formed at a portion of the first crease 44a, the second crease 45a, and the other crease 46a provided in the front outer panel side first fold part 43A and overlapping with the front inner panel side first fold part 43B. By providing the eye or crease half-cut line 55, the front outer panel side first folding part 43A and the front inner panel side first folding part 43B are laminated together, and this part is firmly constructed with a laminated structure. Even so, the first folding part 43 can be easily formed and folded between the top wall side panel 41 and the bottom side panel 42. Further, the crease perforation or the crease half-cut line 55 is provided in a portion of the front outer panel side first fold portion 43A that overlaps the front inner panel side first fold portion 43B. Even if the half-cut line 55 is provided, the barrier property of the paper container 10 does not deteriorate.

  The opening operation of the paper container 10 is performed by picking the opening knob 25 formed on the front outer flap 11a. At this time, the first peeling half-cuts 32a and 32b and the second peeling half-cut lines 35a to 35c are provided so that the front outer flap 11a can be easily peeled from the front inner flap 11b. A layer 50 is provided. Although the reseal slit 31 exists in the enclosed region, the release layer 50 is disposed so as to avoid the reseal slit 31, and therefore the reseal slit 31 is sealed by the seal layers 5 and 8. Thus, it is reliably closed and the sealing performance is not impaired.

  In addition, since the reseal slit 31 is configured to include an uncut continuous portion 31 ′ in the middle of the full cut portion that penetrates the blank 1, the slit is inadvertently opened and sealing is impaired. This is a very difficult business.

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIG. The paper container 10 shown in FIG. 6 is different from the first embodiment described above only in the configuration of the first peeling half-cut lines 32a and 32b, and only this point will be described.

  In the first embodiment, two first peeling half-cut lines 32a and 32b are formed on both sides. In the second embodiment, at least one adjacent first peeling half-cut line 32a ', 32b' is formed for each of the half-cut lines 32a, 32b.

  In this way, the meaning of providing a plurality of first peeling half-cut lines on both the left and right sides is the absorption of misalignment. That is, in the production line, when the release layer 50 is applied on the front inner panel 11b, the release layer 50 should naturally be disposed so as to cover both the first release half-cut lines 32a and 32b. .

  However, in reality, there may be a deviation in the manufacturing process. As in the second embodiment shown in FIG. 6, the presence of two first peeling half-cut lines on each of the left and right sides absorbs this shift and keeps the occurrence rate of defective products low. Can do.

  In the first embodiment described above, the provision of a plurality of second peeling half-cuts 35a to 35c has the same meaning.

  In the example shown in FIG. 6, there are two first peeling half-cut lines on each side (four in total), but more half-cut lines may be provided.

  The reseal slit 31 and the second peeling half-cut lines 35a to 35c are provided so as to intersect with all the first peeling half-cut lines 32a, 32b, 32a ′, 32b ′,. . The release layer 50 is provided in a region sandwiched between the outermost two first release half-cut lines (32a ′ and 32b ′ in the illustrated example), avoiding the reseal slit 31.

Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIG. The paper container 10 shown in FIG. 7 differs from the first and second embodiments described above only in that the extension panel 11c is provided on the blank 1 ′, and only this point will be described. FIG. 7 shows the correspondence between the blank 1 ′ and the paper container 10 ′.

  In the blank 1 ', an extension panel 11c is additionally formed above the front inner panel 11b. Both are connected via a crease f. The crease f and the extension panel 11c are located at the position shown in the partially cutaway view of FIG. 7 in the assembled paper container 10 '. That is, the extension panel 11c is folded back toward the outside of the paper container at the crease f.

  The laminated structure of the blank 1 ′ is as described with reference to FIG. 5, but the paper layer 6 is exposed at the peripheral edge of the blank. If, for example, chocolate, cookies, or the like, which are the contents, come into contact with the exposed edge, an oil component enters the paper layer 6 and adverse effects such as appearing as a stain on the surface of the paper container occur.

  In order to prevent this, in the third embodiment, an extension panel 11c is provided and folded back outwardly at the crease f. As a result, the contents do not come into contact with the end edge 11d, so that oil can be prevented from penetrating into the laminated structure from the end edge 11d.

  Instead of this folding, a skive hemming process may be performed on the extension panel 11c. In this case, the crease f need not be provided.

1, 1 'Blank 5 Seal layer 6 Paper layer 7 Aluminum layer 8 Seal layer 10, 10' Paper container 11 Front wall 11a Front outer panel 11b Front inner panel 11c Extension flap 11d Edge 12 Top wall 13 Back wall 14 Bottom wall 21a , 21b Notch 22a, 22b Opening half-cut wire 25 Opening knob 31 Re-sealing slit 31 'Continuous portion 32a, 32b, 32a', 32b 'First peeling half-cut wire 35a, 35b, 35c Second Peeling half-cut wire 40 Side 41 Top wall side panel 41a Adhering part 42 Bottom wall side panel 42a Adhering part 43 First folding part 43A Front outer panel side first folding part 43B Front inner panel side first folding part 44 1st triangle area 44a 1st crease 45 2nd triangle area 45a 2nd crease 46a other creases 50 peeling layer 55 crease perforation or crease half cut

Claims (8)

In a hexahedron-shaped paper container that is assembled by folding a blank made of a laminate having at least a barrier layer and a paper layer along a crease so that the paper layer is on the outer surface of the container,
A front wall having a front outer panel and a front inner panel affixed to the front outer panel;
The top wall,
The back wall,
The bottom wall,
A pair of side portions,
A pair of opening half-cut lines are provided on the outer surface side of the front outer panel, and a knob surrounded by the pair of opening half-cut lines is formed on the bottom wall side of the front outer panel,
Each side has a top wall side panel that extends from the top wall and has a sticking portion at the tip, and a bottom wall side panel that extends from the bottom wall and has a sticking portion at the tip,
A front outer panel side first folding part extending from the front outer panel and a front inner panel side first folding part extending from the front inner panel on both sides of each side part, the top wall side panel and the bottom wall side panel A first folding part folded between
A second folding part that extends from the back wall and is folded between the top wall side panel and the bottom wall side panel is provided,
The first folding part and the second folding part are formed by folding a blank along a crease,
Among the creases forming the front outer panel side first fold, a crease perforation or a crease half-cut line is provided on the outer surface side of the portion overlapping the front inner panel side first fold. Paper container.   The paper container according to claim 1, wherein the front inner panel is provided with a reseal slit into which a knob is inserted. The front outer panel side first folding portion includes a first triangular area connected to the front outer panel via a first crease, and a pair of second creases connected to the first triangular area. A second triangular region,
A crease perforation or a crease half-cut line is provided in a portion overlapping the first fold portion on the front inner panel side of the first crease and a portion overlapping the first fold portion on the front inner panel side of the second crease. The paper container according to claim 1 or 2, characterized in that.   A crease perforation or a crease half-cut line is provided at a portion of the other crease lines that divide the pair of second triangular regions and overlaps the front inner panel side first folding part. 3. The paper container according to 3. In a blank for forming a hexahedron-shaped paper container by comprising a laminate having at least a barrier layer and a paper layer, and folding and assembling along a crease so that the paper layer is on the outer surface,
A front outer panel,
A front inner panel affixed to this front outer panel,
The top wall,
The back wall,
The bottom wall,
A pair of side portions,
A pair of opening half-cut lines are provided on the front outer panel, and a knob portion surrounded by the pair of opening half-cut lines is formed on the bottom wall side of the front outer panel,
Each side has a top wall side panel that extends from the top wall and has a sticking portion at the tip, and a bottom wall side panel that extends from the bottom wall and has a sticking portion at the tip,
The front outer panel side first folding part extending from the front outer panel and the front inner panel side first folding part extending from the front inner panel are folded between the top wall side panel and the bottom wall side panel. A first folding part;
A second folding part that extends from the back wall and is folded between the top wall side panel and the bottom wall side panel is provided,
The first folding part and the second folding part have a folding line for folding the blank,
Among the creases forming the front outer panel side first fold, when the paper container is assembled, a crease perforation or crease half-cut line is provided on the outer surface side of the portion that overlaps the front inner panel side first fold Blank characterized by being.   The blank according to claim 5, wherein the front inner panel is provided with a reseal slit into which a knob is inserted. The front outer panel side first folding portion includes a first triangular area connected to the front outer panel via a first crease, and a pair of second creases connected to the first triangular area. A second triangular region,
A crease perforation or a crease half-cut line is provided in a portion overlapping the first fold portion on the front inner panel side of the first crease and a portion overlapping the first fold portion on the front inner panel side of the second crease. The blank according to claim 5 or 6, characterized by the above.   A crease perforation or a crease half-cut line is provided at a portion of the other crease lines that divide the pair of second triangular regions and overlaps the front inner panel side first folding part. 7. The blank according to 7.