JP2004075081A - Easily unsealable hermetic carton - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easily unsealable hermetic carton which has a good sealability of contents without powder leakage, can be easily unsealed by a simple operation and easily re-sealed, and is highly economical with the minimum material required. <P>SOLUTION: The easily unsealable hermietic carton includes a front plate, a rear plate and a pair of opposite side plates. A lower top plate is connected with the upper side of the front plate. A top plate and an unsealing piece are connected with the upper side of the rear plate. Folding pieces are connected respectively with the upper sides of the side plates. A pressing piece is provided to be capable of being cut by a press-to-cut line having the approximately center part of a crease as both ends on the upper edge of the front plate, so that portions outside both ends of the press-to-cut line can be cut at the crease. The folding pieces are provided with opening cut lines respectively parallel to creases with the side plates. Portions to be peeled via a peeling layer are provided between the opening cut line and the crease and at the upper edge for bonding an unsealing piece of the front plate. The carton is set up from a single blank thus formed. A top folding piece is bonded to the lower top plate, the lower top plate to the top plate via an adhesive, and the unsealing piece is bonded to the upper edge of the front plate via the adhesive to form a top. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an easily-openable sealed carton for storing contents such as powder or granules, and having a sealing property and an easy-opening property.
[0002]
[Prior art]
Conventionally, sealed cartons for storing contents such as powder or granular materials have many contents that dislike moisture, have good sealing properties before opening the carton, and have a function to prevent the contents from scattering. There is a demand for easy opening, reclosability after opening, and low cost. There are various types of cartons having these functions. As a typical example, as shown in FIG. 7 (a), the opening end of the body is top-sealed with glassine paper or the like having a sealing property. There is a hermetically sealed carton provided with a hinged cover which can provide moisture proofing and scattering of contents, and can be fully opened. As another example, as shown in FIG. A sealed carton in which only the outer wall panel is removed by horizontally stripping and removing the strip-shaped tear piece to separate it into a body and a cover so that the contents can be immediately taken out.
[0003]
[Problems to be solved by the invention]
However, in the case of the conventional carton shape, there is a problem that the opening means is complicated, and it is difficult to open for the elderly or a person with a handicap. Further, there is a problem that the structure becomes complicated in order to achieve both easy-opening property and sealing property, the amount of packaging material used increases, and the cost increases.
[0004]
The present invention has been found in order to solve the above-mentioned problems, has a good sealing property against contents such as powder leakage, can be easily opened by a simple operation, can be easily re-sealed, Another object of the present invention is to provide an easy-to-open sealed carton that is economical and requires a minimum amount of materials.
[0005]
[Means for Solving the Problems]
The present invention made in order to solve the above problems includes a front plate, a rear plate and a pair of opposed side plates, an upper side of the front plate, a ceiling plate is continuously provided, an upper side of the rear plate is A top plate and an opening piece are continuously provided, and a folding piece is continuously provided on an upper side of the side plate, and an upper edge portion of the front plate is substantially a broken line between the front plate and the bottom plate. A pushing piece is provided so as to be cut by a pushing cutting line having both ends at a central portion, and portions outside both ends of the pushing cutting line can be cut off at the folding line, and the folding piece is parallel to a folding line with the side plate. Each is provided with an opening cutting line, a portion between the opening cutting line and the folding line, and a peeled portion provided with a peeling layer at an upper edge portion of the front plate where the unsealing pieces are bonded to each other. Assemble from blank The top plate is bonded with an adhesive, the top plate and the top plate are bonded with an adhesive, and the opening piece is bonded to the upper edge of the front plate with an adhesive to form a top portion. An easily-openable sealed carton, characterized in that, when the opening piece is bonded to the upper part of the front plate, a concave portion is provided at a position where the edges of the opening piece overlap, and the upper part of the front plate A plurality of bonding areas such as circles are provided at positions in the portion where the unsealing pieces are bonded by semi-cut lines from the surface.
[0006]
Further, it is preferable that the opening cutting line is a pair of parallel half-cut lines, and the half-cut line on the side near the broken line with one of the side plates is a half-cut from the front side, and the other half-cut line Is half cut from the back side.
[0007]
ADVANTAGE OF THE INVENTION According to this invention, it can be easily opened by a simple operation, the sealing property with respect to the contents is good, it can be easily resealed, and it is possible to assemble from one blank and use the minimum necessary amount of paperboard. A highly economical easy-open sealed carton can be obtained.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to the drawings. The easy-open sealed carton 1 according to the invention is formed from a single blank 10. FIG. 1 is an exploded view of a blank 10 of an easily-opened sealed carton 1 according to the present invention. As shown in the figure, the blank 10 is provided with a side plate 11, a front plate 12, a side plate 13, a rear plate 14, and a glue margin piece 15 successively provided along broken lines a, b, c, and d.
[0009]
A top folding piece 16 is continuously provided on the upper side of the side plate 11 via a bend line e, a top plate 17 is continuously provided on a top side of the front plate 12 via a bend line f, and an upper side of the side plate 13 is provided on a top side of the side plate 13. A top folding piece 18 is continuously provided via a broken line g, and a top plate 19 is continuously provided via a broken line h on the upper side of the rear plate 14. On the top side of the top plate 19, an opening piece 24 is continuously provided via a broken line m. Further, on the lower side of the side plate 11, a bottom folded piece 20 is continuously provided via a broken line i, on the lower side of the front plate 12, a bottom lower plate 21 is continuously provided via a broken line j, and on the lower side of the side plate 13. , A bottom folded piece 22 is continuously provided via a broken line k, and a bottom plate 23 is continuously provided via a broken line l on the lower side of the rear plate 14.
[0010]
Further, the front plate 12 is provided with an arc-shaped push piece O by a cutting line o having both ends at the center of the broken line f with the ceiling plate 17. The cutting line o can be a perforation, a half cut, or the like. In the broken line f, both outer portions at both ends of the indentation cutting line o are formed as cut lines that can be cut by an L-shaped lead rule or the like.
[0011]
In addition, a concave portion U is provided in the upper portion of the front plate 12 at a position overlapping the substantially central portion of the edge of the unsealing piece 24 when the carton is assembled, so that the unsealing piece 24 can be easily picked with a finger. The concave portion U is formed by embossing in a blanking process for manufacturing the blank 10.
[0012]
In the upper part of the front plate 12, a plurality of bonding regions P having a circular shape or the like are formed at positions in the portion where the unsealing pieces 24 are overlapped and bonded when the carton is assembled by a half-cut line p from the surface. (In this embodiment, two circular places). The unsealing piece 24 is bonded to the front plate 12 at the bonding area P. When the unsealing piece 24 is unsealed, the part of the bonding area P is delaminated and the unsealing piece 24 is peeled off.
[0013]
The top folding pieces 16 and 18 are provided with opening cut lines x and x, respectively, parallel to the folding lines e and g when the carton is assembled. By the opening cutting lines x, x, the top folding pieces 16, 18 are cut into the upper part of the blank 10 on the top folding pieces 16, 18, and the lower part, below the top folding pieces 16, 18. Then, the tops of the top folding pieces 16 and 18 are opened as an opening X integrally with the bottom plate 17 and the top plate 19. Further, a notch is provided at the start end of the opening cutting line x, x. The opening cutting line x can be a perforation, a half-cut, or the like. However, as shown in the present embodiment, it is preferable that the opening cutting line x be a pair of parallel half-cut lines x1 and x2. As shown in the figure, the upper half-cut line x1 is a half-cut from the back side, and the lower half-cut line x2 near the broken lines e and g with the side plates 11, 13 is a half-cut from the surface. With this shape, the opening portion X is easily opened, and it is difficult for dust and the like from the outside to enter. In particular, when the content is a powder, the powder has a hermetic property that does not easily leak.
[0014]
On the other hand, on the lower side of the side plate 11, the front plate 12, the side plate 13, and the rear plate 14, a bottom folding piece 20, a bottom lower plate 21, a bottom folding piece 22, and a bottom plate 23 are respectively provided via broken lines i, j, k, and l. It is installed continuously. The widths of the bottom plate 21 and the bottom plate 23 are narrower than the widths of the top plate 17 and the top plate 19. When assembling the carton, the bottom bottom plate 21 and the bottom plate 23 are stuck together at a partially overlapped portion. This forms the bottom. In this way, by reducing the width of the lower bottom plate 21 and the bottom plate 23 to reduce the blank size, it is possible to reduce the amount of material and to increase the economic efficiency.
[0015]
FIG. 3 is a view showing a peeled portion Z provided with a peeling layer by using ink having releasability in the printing process, in which a pattern, a display, or the like is printed on the surface of the blank 10. In the front plate 12 and the top folding pieces 16 and 18, the meshed portions shown in FIG. 3 are peeled portions provided with a peeling layer using a peelable ink. As will be described in detail later, by providing this peeled portion, when the opening piece 24 is bonded to the front plate 12 with an adhesive, the portion other than the portion of the bonding region P provided on the front plate 12 by the half-cut line p is provided. Since the portion is in a temporary attachment state in which interface separation can be performed, the portion can be easily peeled off. 24 can be peeled from the front plate 12.
[0016]
When the top fold pieces 16 and 18 and the bottom plate 17 are bonded together with an adhesive, the top fold pieces 16 and 18 on the top fold pieces 16 and 18 above the opening cutting lines x and x of the top fold pieces 16 and 18 ( The inner side when assembled in a carton is adhered to the ceiling plate 17, whereas the lower part of the ceiling fold pieces 16 and 18 below the opening cutting lines x and x (the outer side when assembled in a carton). ) Is a peeling portion, which is in a temporarily attached state in which the interface can be peeled off, so that it can be easily peeled off, and the top folding plates 16 and 18 and the ceiling plate 17 and the ceiling plate 19 are integrated. Only the opening X can be opened. As the releasable ink, an ink type is selected according to a printing method such as offset printing or gravure printing, and the main material is not particularly limited. Mainly use the ink of the specification which added silicone to each ink.
[0017]
Next, a process of assembling the easily-opened sealed carton of the present invention from the blank configured as described above will be described. FIG. 4 is a diagram illustrating a process of assembling the easily-opened sealed carton 1 of the present invention from the blank 10. First, after the side plate 11, the front plate 12, the side plate 13, the rear plate 14, and the glue margin 15 are sequentially bent in predetermined directions through the broken lines a, b, c, and d, the glue margin 15 is attached to the back surface of the side plate 11. Adhere and assemble into a rectangular tube shape as shown in FIG.
[0018]
Next, the top folding pieces 16 and 18 are bent inward through the folding lines e and g, respectively, and the ceiling plate 17 is bent through the folding line f. As shown in FIG. And the ceiling plate 17 are overlapped and bonded. At this time, almost the entire surfaces of the top folding pieces 16 and 18 and the bottom plate 17 are bonded with an adhesive.
[0019]
Next, the top plate 19 is bent along the fold line h, and as shown in FIG. At this time, an adhesive is applied to the surface of the ceiling plate 17 or almost the entire back surface of the ceiling plate 19 to bond the ceiling plate 17 and the ceiling plate 19 together.
[0020]
Further, the opening piece 24 is bent along the broken line m and is bonded to the upper edge of the front plate 12.
In this bonding, an adhesive is applied to almost the entire surface of the opening piece 24 and bonded to the upper edge of the front plate 12.
[0021]
Finally, as shown in FIG. 4D, after filling the contents such as powder from the bottom side, the bottom folded pieces 20, 22, the lower bottom plate 21, and the bottom plate 23 are cut along the broken lines i, k, j, l. Then, the bottom portion is sealed by successively folding and bonding inward to complete the easy-open seal carton 1 as shown in FIG.
[0022]
Examples of the adhesive used for the lamination include emulsion-type adhesives such as vinyl acetate resin, vinyl chloride-vinyl acetate copolymer, ethylene-vinyl acetate copolymer, and acrylic resin, and ethylene-vinyl acetate copolymer. Hot-melt adhesives such as coalescing, nylon-based resins, and acrylic resins can be used. The contents such as powders are not limited to the case where the contents are filled from the bottom of the easily-openable sealed carton 1. First, the bottom of the easily-openable sealed carton 1 is sealed, and then the contents are filled at the bottom of the easily-openable sealed carton 1. Filling from the side and finally the top of the easy-open sealing carton 1 may be sealed as described above.
[0023]
FIG. 5 is a view for explaining the opening of the easily-opened sealed carton 1 according to the present invention. In order to open the easily-openable sealed carton 1 according to the present invention, first, a finger is inserted into a gap of a concave portion U provided at the upper part of the front plate 12 by putting an opening piece 24 bonded to the upper edge of the front plate 12. It is picked and peeled from the front plate 12. At this time, as shown in FIG. 5A, the portion other than the circular bonding region P is easily peeled off, and the paper is also delaminated at the bonding region P, so that the opening piece 24 can be peeled off.
[0024]
Next, the pushing piece O provided at the upper edge of the front plate 12 is cut along the cutting line o so as to be pushed with a finger.
[0025]
Next, as shown in FIG. 5B, the unsealing piece 24 is picked, and the push-in piece O, the top plate 19 and the bottom plate 17 are picked up and pulled up. By this operation, the fold line f between the front plate 12 and the ceiling plate 17 is torn, and the opening cutting lines x, x provided on the ceiling fold pieces 16, 18 are torn, and the top fold pieces 16, 18 are separated. An opening X in which the ceiling plate 17 and the ceiling plate 19 are integrated is opened. At this time, since the portions under the top folding pieces 16 and 18 are in a temporary attachment state in which the field plate can be peeled off, the opening X can be easily peeled off. This prevents contents such as powder from leaking between the top folding pieces 16 and 18 and the bottom plate 17 and from the opening cut lines x and x of the top folding pieces 16 and 18. In addition, the contents such as powder do not enter between the top plate 19 and the bottom plate 17, and the contents such as powder do not scatter at the time of opening. The broken line h functions as a hinge for opening and closing the opening X.
[0026]
FIG. 6 shows the easy-open sealed carton 1 according to the invention in a resealed condition. When the opening piece 24 connected to the opening X is made to function as an insertion piece this time and is inserted into the space inside the front plate 12, the opening X can be locked at the original position.
[0027]
【Example】
In order to apply the easily-openable sealed carton 1 according to the present invention to a household powder detergent, using a blank as shown in FIG. 1, the size of the container is 150 mm in height, 150 mm in width, 80 mm in depth, and the content is 1200 g. A prototype of a rectangular parallelepiped easy-open sealed carton. The height of the opening piece was 30 mm. As a paperboard used as a material, a basis weight of 505 g / m ² of Neosand (trade name, manufactured by Honshu Paper Co., Ltd.), which is a moisture-proof paperboard, was used. When the opening and resealing of the easily-opened sealed carton 1 according to the present invention, which was prototyped in accordance with the above specifications, were confirmed, it was confirmed that the opening could be easily performed with a simple operation, and the resealing could be easily performed. In addition, the powder detergent did not remain in the top portion at the time of opening, and did not scatter.
[0028]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, it can be easily opened by a simple operation, the sealing property with respect to the contents is good, it can be easily resealed, and it is possible to assemble from one blank and use the minimum necessary amount of paperboard. Can be formed.
[0029]
Specifically, it has the following effects.
1. In bonding the opening piece to the front plate, the portion other than the bonding area is used as the peeling portion, so that the opening piece can be easily peeled off even when bonded with an adhesive, so that the opening is easy.
2. The opening cutting line that forms the opening consists of a pair of half-cut lines, one half cut from the front surface and the other half cut from the back surface, both before cutting and after resealing after cutting. The overlapping parts prevent the invasion of foreign matter from outside and provide a highly sealed carton that prevents the contents from leaking out.
3. When resealing, the opening piece can be inserted as an insertion piece into the inside of the front plate, and the re-sealing can be easily performed after resealing by the press-cut line provided at the upper end of the front plate.
4. By making the bottom part a short bottom flap, which is called a short flap, the blank size can be reduced, and the material can be reduced.
5. Because 100% is made of paper, it is easy to dispose after use and has good recyclability.
[Brief description of the drawings]
FIG. 1 is an exploded view showing a blank of an embodiment of an easy-open sealed carton according to the present invention.
FIG. 2 is a schematic enlarged view and a schematic cross-sectional view of an opening cut line of one embodiment of the easily-opened sealed carton according to the present invention.
FIG. 3 is a developed view showing a peeled portion in a blank of an embodiment of the easily-opened sealed carton according to the present invention.
FIG. 4 is a perspective view illustrating an assembling process of an embodiment of the easily-opened sealed carton according to the present invention.
FIG. 5 is a perspective view for explaining the opening of one embodiment of the easy-open sealing carton according to the present invention.
FIG. 6 is a perspective view showing the resealing of an embodiment of the easy-open sealing carton according to the present invention.
FIG. 7 is a perspective view showing a conventional easy-open sealed carton.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Easy-open sealing carton 10 Blank 11 Side plate 12 Front plate 13 Side plate 14 Rear plate 15 Glue margin piece 16 Top folding piece 17 Lower board 18 Top folding piece 19 Top board 20 Bottom folding piece 21 Bottom lower board 22 Bottom folding piece 23 Bottom board 24 Opening Piece O Push-in piece o Cutting line P Adhesive area p Half-cut line a to l Ruled line X Opening x Opening cut line x1 Half-cut (from the back)
x2 half cut (from the surface)
U recess

Claims (4)

A front plate, a rear plate, and a pair of opposed side plates, a ceiling plate is continuously provided on an upper side of the front plate, and a top plate and an opening piece are continuously provided on an upper side of the rear plate; On the upper side, folding pieces are respectively provided in series, and on the upper edge of the front plate, a pushing piece is formed by a pressing cutting line having both ends substantially at the center of the folding line between the front plate and the ceiling plate. The cutting line is provided so as to be cutable, and the outer portions of both ends of the indentation cutting line can be cut off at the folding line, and the folding piece is provided with an opening cutting line parallel to the folding line with the side plate, and the opening cutting line is provided. And the portion between the broken line, and assembling from a single blank provided with a peeling portion by a peeling layer at the upper edge of the front plate to which the unsealing piece is bonded,
The top folded piece and the top plate are bonded with an adhesive, the top plate and the top plate are bonded with an adhesive, and the unsealed piece is bonded to the upper edge of the front plate with an adhesive. An easily-opened sealed carton characterized by being formed with: 2. The easy-open seal carton according to claim 1, wherein a concave portion is provided at a position where edges of the open piece overlap each other when the open piece is bonded to an upper portion of the front plate. 2. A bonding area such as a circle is provided at a plurality of positions by a half-cut line from a surface at a position in a portion of the upper portion of the front plate where the opening pieces are bonded. Easy-open sealed carton. The opening cutting line is composed of a pair of half-cut lines substantially parallel to each other, the half-cut line on the side near the broken line with one of the side plates is a half-cut from the front side, and the other half-cut line is from the back side. 2. The easy-open seal carton according to claim 1, wherein the carton is half-cut.

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