JP2010126209A - Paper container with opening function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper container with an opening function which surely opens along an intended opening in a container including a container body and a housing attached to the outside of a container body and peeled off from the container body. <P>SOLUTION: Cuts for opening are provided one after another in the opening direction from an opening start part toward the opening of a container body, and the bottom end of a cut provided next to a cut on the opening start side is closer to the bottom side of the container body than the top end of the cut on the opening start side. Cuts for opening are provided one after another in the opening direction from the opening start part toward the bottom of a container body, and the top end of a cut provided next to a cut on the opening start side is closer to the opening side of the container body than the bottom end of the cut on the opening start side. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a container composed of a container main body and an outer body adhered to the outer side of the body, and relates to a container from which the outer packaging material can be peeled off from the container main body, for example, prize application, authentication, distribution The present invention relates to a container with an opening function including concealment information that can be used for sales promotion and the like by providing a prize as a route grasp and a lottery number. And this container is used also as heat insulation containers, such as instant foods which pour hot water and cook.

  2. Description of the Related Art Conventionally, in the field of packaging foods and the like, means for giving a prize function to a package for packaging contents such as foods has been used for the purpose of promoting sales of the contents such as foods. As one of the means, for example, a winning ticket or the like is stored in a cup-shaped container in a concealed package, and the cup-shaped container is opened to check information such as “hit and miss” as concealment information. There is something that can be done. In this case, it is necessary to prepare a winning ticket separately, and there is a problem that it takes a lot of time and effort to put it in a cup-shaped container.

  In the field of confectionery and food, a method of printing individual information on a packaging container to obtain a purchase certificate or the like is widely used. For example, for general paper containers, individual information is printed on the inner surface of the paper container box. For flexible packaging bags, individual information is printed on the inner side of the bag. A method of attaching an information hiding label or the like is employed. The individual information is often a two-dimensional bar code such as a QR code that can be read by a mobile phone, or a number of several to tens of digits.

  However, in the case of instant food containers that are prepared by pouring hot water in the packaging field of foods, etc., providing individual information consisting of the printing ink layer on the inner surface of the container means that residual solvents and ink components from the printing ink layer are added to the food. There are hygienic and safety problems such as elution.

  In order to solve this problem, Patent Document 1 is a container including at least a container body and an exterior body that is bonded and integrated so as to cover the outside of the container body, and includes a body portion of the container body. A concealment information layer is formed on the outer peripheral wall or the inner surface of the exterior body, and is opened along a cut line from a knob as an opening start means provided on the exterior body, so that the outer side of the body portion of the container body is opened after opening. There has been proposed a container with concealment information characterized in that the concealment information provided on the peripheral wall or the inner surface of the exterior body can be easily seen.

  Several containers have been proposed in the past for the purpose of mainly improving the heat insulation of a container, which is composed of a container body and an outer package combined so as to cover the outside (Patent Documents 2, 3, 4). ).

  The container proposed in Patent Document 1 records information concealed in a space that cannot be seen as it is between the container body and the exterior body using the above structure, and the residual solvent and ink from the printing ink layer. It is an epoch-making structure that makes it possible to use information that has been easily concealed when necessary, while avoiding problems such as the dissolution of ingredients into foods. Although it is excellent in that it can be used also in the case of carrying out, it has been found that it may not be possible to peel off the outer shape in the shape that was planned.

  Here, a specific example in the case where the exterior body cannot be peeled off in a predetermined shape will be shown.

FIG. 5 schematically shows an example of the container with concealment information of Patent Document 1, wherein (a) is an external perspective view showing an unopened state of the paper outer package, and (b) is the start of opening. An external perspective view showing the unsealed state of the paper outer body that is opened from the knob as a means to form an unsealed area and a part of the concealment information provided on the inner surface of the unsealed area of the paper outer body is finally visible It is.

  The container 1 with an opening function shown in FIG. 5 (a) is made of paper along a plurality of cut lines 20b and 20b by picking and opening the opening start portion 20a formed on the paper outer package 20 with fingers. The paper outer body is opened so as to gradually spread in the opening direction and the bottom direction of the container body 10 to form an opening area 20c, and the concealment information 30 of the opening area provided on the back surface of the paper outer body is confirmed. Can do.

  In this case, the unsealed area is scheduled to have a shape that allows the concealment information to be visually recognized. Should be visible.

  The unsealed state of the paper outer package shown in FIG. 5B shows an unsealed state where only a part of the concealment information can be visually recognized as a result of unsealing at a position away from the cut.

  Thus, for example, when opening a cylindrical container having an inclination along the cut provided as shown in FIG. 5A, the cut provided to line up toward the bottom of the container is Since a force in the lateral direction with respect to the container body portion is strongly applied at the time of opening, there is a case where no force is applied toward the bottom of the container and the cut is not continuously torn and as a result, the opening cannot be performed along the cut.

  The above-mentioned phenomenon that cannot be opened along the cut may occur in the same manner even in the cut provided in the exterior body on the opening side of the container body, even when the shape of the cut is Y-shaped or L-shaped. There was a case to get up.

  As a result, since it cannot be reliably opened in accordance with the planned opening portion, the exterior body cannot be peeled off from the container body, and the container may not be easily disassembled.

Also, if concealment information is provided on the body of the container body, the information cannot be easily viewed, and if concealment information is provided on the back of the exterior body, the exterior body is torn and the information is confirmed. In some cases, the result was that it was impossible to do so.
Japanese Patent Application No. 2007-301393 JP-A-8-48375 JP 2000-16419 A JP 2000-142837 A

  The problem of the present invention is that the container body is composed of a container body and an outer body adhered to the outer side of the body part, and the container can be peeled off from the container body. It is to provide a paper container with an opening function that can be performed

The invention of claim 1 of the present invention is a paper container with an opening function comprising at least a container main body and an exterior body that is bonded and integrated so as to cover the outside of the container main body.
The exterior body is a paper container with an opening function in which an opening start part consisting of a cut, a cut for opening in the opening direction from the opening start part toward the opening and bottom part of the container body is provided,
Opening cuts that are sequentially provided in the opening direction from the opening start part toward the opening of the container body are such that the lower end of the cut provided next to the upper end of the opening start part side is on the bottom side of the container body The opening cut provided sequentially in the opening direction from the opening start portion toward the bottom of the container main body has the upper end of the cut provided next to the lower end of the opening start portion side opening of the container main body. It is a paper container with an opening function characterized by being provided on the part side.

  The invention according to claim 2 of the present invention is the paper container with an opening function according to claim 1, wherein the opening start portion is formed by a rounded cut.

  The invention according to claim 3 of the present invention is characterized in that the opening start portion is provided at a position that is at least half the height of the exterior body. The paper container with an opening function according to claim 1 or 2 It is.

  The invention according to claim 4 of the present invention is characterized in that a transverse cut is provided so as to be continuous with the opening cuts sequentially provided in the opening direction from the opening start portion toward the bottom of the container body. It is a paper container with an opening function of any one of Claim 1 to 3.

  Since the paper container with an opening function of the present invention forms the opening region at the cut, it can be formed by stably sticking the exterior body to the container body.

  Further, since the concealment information is provided on the outer peripheral wall of the body portion of the container body or the inner surface of the exterior body, it is not necessary to separately prepare a winning ticket or the like, and the work of putting it in the container can be eliminated.

  Furthermore, the opening area can be easily opened along the cut from the knob as the opening start means, and the concealment information provided on the outer peripheral wall of the body portion of the container body or the inner surface of the exterior body can be easily confirmed. .

  Thereby, it is possible to provide a paper container with an unsealing function provided with concealment information that can be used for sales promotion etc. by providing prizes as prize application, authenticity determination, distribution route grasping, lottery number and the like.

  In the paper container with an opening function of the present invention, the exterior body is provided with an opening start portion (pick portion) consisting of a cut, and an opening cut in the opening direction from the opening start portion toward the opening and bottom of the container body. The opening break is provided in the opening direction sequentially from the opening start portion toward the opening of the container body, and the opening break is provided next to the upper end of the opening on the opening start portion side. The lower end of the cut is provided on the bottom side of the container body, and the opening cut sequentially provided in the opening direction from the opening start part toward the bottom of the container body is next to the lower end of the cut on the opening start part side. A paper container with an opening function that can be reliably opened in accordance with the planned opening part without deviating from the outline of the planned opening part by providing the upper end of the cut line provided on the opening side of the container body. It can be provided.

  As a result, when the opening part of the exterior body is different from the planned position or smaller than the planned size, it is recorded on the outer surface of the container body and the limitation of the visibility of the concealment information recorded inside the exterior body. In addition, it is possible to easily view or read the entire necessary recorded information without limiting the visibility of the concealment information.

  The paper container with an opening function of the present invention has a structure in which the opening start portion (pick portion) is formed by a rounded cut and is easily picked with a fingertip at the start of opening.

In the paper container with an opening function of the present invention, the opening start portion (pick portion) is provided at a position that is at least half the height of the exterior body. It is easy to apply and can be opened reliably along the planned opening.

  The paper container with an opening function of the present invention is provided with a horizontal cut so as to be continuous with the opening cuts sequentially provided in the opening direction from the opening start portion (pick portion) toward the bottom of the container body. Therefore, when it is not necessary to open to the bottom, only a necessary portion can be opened with a light force.

  The paper container with an opening function of the present invention is a paper container main body, and an outer body that is bonded and integrated so as to cover the outside of the paper container main body as a paper outer body. It can also be used as an insulating container for instant foods that are poured and cooked.

  Furthermore, the paper container with an opening function of the present invention is disposed as a paper product after use by using paper as a material, and is easy to reduce in volume, and therefore has good disposal properties. Since recycling is also possible, it can contribute to the reduction of environmental impact.

  Hereinafter, a paper heat insulation cup is illustrated as an example of an embodiment of the present invention, and a paper container with an opening function of the present invention will be described with reference to the drawings.

  FIG. 1 is an external perspective view schematically showing an example of a paper container with an opening function of the present invention, and (a) is an external perspective view showing an unopened state of a paper outer package. (B) is a paper exterior body that is opened along the cut from the knob as an opening start means to form an opening area, and the concealment information provided on the inner surface of the opening area of the paper exterior body is easily visible. It is an external appearance perspective view which shows an open state.

  FIG. 2 is a cross-sectional view schematically showing an example of the paper container with an opening function of the present invention shown in FIG.

  FIG. 3 schematically shows another example of the paper container with an opening function of the present invention, and (a) is an external perspective view showing an unopened state of the paper outer package. (B) is a paper exterior body that is opened along the cut from the knob as an opening start means to form an opening area, and the concealment information provided on the inner surface of the opening area of the paper exterior body is easily visible. It is an external appearance perspective view which shows an open state.

  FIG. 4 schematically shows still another example of the paper container with an opening function of the present invention, and (a) is an external perspective view showing an unopened state of the paper outer package. (B) is a paper exterior body that is opened along the cut from the knob as an opening start means to form an opening area, and the concealment information provided on the inner surface of the opening area of the paper exterior body is easily visible. It is an external appearance perspective view which shows an open state.

  FIG. 5 is an external perspective view schematically showing an example of a conventional paper container with an opening function, and (a) is an external perspective view showing an unopened state of the paper outer package. (B) is an external perspective view showing a state in which the concealment information provided on the inner surface of the unsealed area of the paper exterior body is partially visible by unsealing from the knob as the unsealing start means. .

  6 (a) is a plan view schematically showing a developed blank plate of a paper outer package used in the conventional paper container with an opening function shown in FIG. 5, and FIG. 6 (b) is a plan view of the present invention shown in FIG. It is a top view which shows roughly the expansion | deployment blank board of the paper-made exterior body used for a paper container with an opening function.

  As shown in FIG. 1 (a), a paper container 1A with an opening function of the present invention is made of the paper-made container body 10 and the paper-made container body 10 so as to cover the outer peripheral wall of the body portion 10a of the paper-made container body 10. An integral part attached to a sticking part (not shown) at the lower end of the flange part 10b consisting of an edge of the outer opening of the container body 10 and a sticking part (not shown) on the outer peripheral wall of the bottom part 10c of the paper container body 10 A paper with an opening function having a two-layer structure in which a heat insulating space is formed between the inner surface of the paper outer casing 20 and the outer peripheral wall of the body portion 10a of the paper container main body 10. It is a container.

  Further, a plurality of slits 20b, 20b are provided in a "<" shape from the required position of the upper edge of the paper outer package 20 to the required position in the bottom direction, and as an opening start means at the "<" shape tip. A knob portion 20a made of a cut having a rounded shape is defined.

  Then, concealment information 30 is provided on the inner surface of the paper outer package 20 that is to be an opening region defined by the plurality of cut lines 20b and 20b.

  As shown in FIG. 1 (b), opening is performed by opening along the cuts 20b and 20b from a knob 20a made of a round cut provided in the opening start part provided in the paper outer package 20. Then, the concealment information 30 in the unsealed area 20c provided on the inner surface of the paper outer package 20 can be easily viewed.

  By providing a space between the body outer peripheral wall 10a of the paper container body 10 and the inner side wall of the paper outer package 20, the heat insulation effect is enhanced and a plurality of strips are formed from the knob 20a made of a rounded cut. It becomes easy to open along the cut lines 20b, 20b, and it is possible to easily form the opening area 20c, and the concealment information 30 can be easily visually recognized. Although FIG. 1 illustrates the case where the concealment information 30 is provided on the inner surface of the paper outer package 20, the concealment information 30 may be provided on the outer peripheral wall of the body 10a of the paper container body 10.

  On the other hand, FIG. 5 schematically shows an example of a conventional paper container with an opening function, and further, the unfolding blank plate of the paper outer casing used in the conventional paper container with an opening function and the opening of the present invention. FIG. 6 shows a schematic plan view for comparing developed blank plates of a paper outer package used for a paper container with a function.

  The conventional paper container with an opening function shown in FIG. 5A and the paper container with an opening function of the present invention shown in FIG. When the opening region extends from the opening start portion 20a of FIG. 5A toward the upper part of the exterior body, the height of the upper end of the opening start portion 20a, that is, the height of the lower end of the next cut relative to X2 in FIG. Are provided so that the height of the lower end of the next cut is substantially the same as the height X1 of the upper end of the cut.

  In FIG. 6 (a), when the opening region is from the opening start portion 20a toward the bottom of the exterior body, the height of the upper end of the next cut is substantially the same as the height X3 of the lower end of the opening start portion 20a. Furthermore, it is repeatedly arranged so that the height of the upper end of the next cut is substantially the same as the height X4 of the lower end of the cut, and this relationship is adjacent to the required height of the bottom of the portion to be opened. Continuing between breaks.

  FIG. 5 (a) shows an external perspective view of a paper container with an opening function molded using the blank plate of FIG. 6 (a), and FIG. 5 (b) shows an external perspective view after opening.

  In FIG.5 (b), since the crack mark in the right direction from the opening start part 20a does not continue with the next cut | interruption, it penetrates into the inside of the required opening area | region planned in the middle part of both upper and lower sides, and the opening area | region 20c is As a result of the narrowing, only a part of the necessary concealment information 30 is visible.

  Thus, the failure that the planned opening area does not open normally and necessary information cannot be confirmed because it did not cleave along the cut adjacent to the planned direction of cleavage is the above-mentioned cut regardless of the shape of the cut. The array was inevitable.

  In the paper container with an opening function of the present invention, by changing the arrangement of the cuts, the paper container can be easily cleaved along the adjacent cuts. That is, when the opening region from the opening start portion 20a of FIG. 1A toward the upper portion of the exterior body, the lower end height of the next cut is set lower than the height X2 of the upper end of the opening start portion 20a. Furthermore, the lower end height of the next cut is set lower than the upper end height X1 of the cut (FIG. 6B).

  In FIG. 6 (b), when the opening region is directed from the opening start portion 20a toward the bottom of the exterior body, the upper end height of the next cut is set higher than the height X3 of the lower end of the opening start portion 20a. Furthermore, it is repeatedly arranged so that the height of the upper end of the next cut becomes higher than the height X4 of the lower end of this cut, and this relationship continues between the cuts adjacent to the required height at the bottom of the planned opening portion. Has been.

  By changing the arrangement of adjacent cuts as described above, due to variations in the direction in which the opening force is applied when opening the exterior body, differences in paper patterns, etc., the direction of cleavage (adjacent cuts) 1), the opening area 20c as shown in FIG. 1B can be easily formed, and the necessary concealment information can be easily visually recognized.

  FIG. 3 shows a paper container with an opening function as another example of the present invention. FIG. 3A is an external perspective view showing an unopened state of the paper outer package, and FIG. 3B is a diagram showing an opening along the cut from a picked portion having a round cut as opening opening means. It is an external appearance perspective view which shows the opening state of the paper-made exterior body which forms an opening area | region and the concealment information provided in the opening area | region inner surface of the paper-made exterior body is easily visually recognized.

  This paper container with an opening function is a container comprising a container main body 10 and an exterior body 20 that is attached so as to cover the outside of the container main body 10 and combined together, and is a body portion of the container main body 10. A concealment information layer 30 is formed on the outer peripheral wall or the inner surface of the outer package 20, and a cut 20 b is formed from a picked portion 20 a having a round cut as opening opening means provided in the outer package 20, and a lower opening of the container opening This is a paper container 1B with an opening function that forms an opening region so that the exterior body gradually spreads along the cut line 20e provided in the body.

  As described above, by providing a cut in the lateral direction of the lower exterior body of the opening of the container, only a necessary region can be easily opened with a light force when opening.

  Furthermore, the paper container with an opening function as another example of this invention is shown in FIG. FIG. 4 (a) is an external perspective view showing the unopened state of the paper outer package, and FIG. 4 (b) is opened along the cut line from a knob having a round cut as opening opening means. It is an external appearance perspective view which shows the opening state of the paper-made exterior body which forms an opening area | region and the concealment information provided in the opening area | region inner surface of the paper-made exterior body is easily visually recognized.

  This paper container with an opening function is a container comprising a container main body 10 and an exterior body 20 that is attached so as to cover the outside of the container main body 10 and combined together, and is a body portion of the container main body 10. A concealment information layer 30 is formed on the outer peripheral wall or the inner surface of the outer package 20, and a cut 20 b is formed from a picked portion 20 a having a round cut as opening opening means provided in the outer package 20. 1C is a paper container with an opening function that forms an opening region so that the exterior body gradually spreads along the cut line 20d.

As described above, by providing a cut in the lateral direction of the bottom upper exterior body of the container, it is possible to easily open only a necessary region with a light force more easily when opening. The height of the horizontal cut is determined by the required opening area and does not have to be near the bottom as shown in FIG.

  It is also possible to provide the above-mentioned transverse cut provided in the lower opening exterior body of the container or the upper upper exterior body of the container on the entire circumference of the lower opening exterior body or the bottom upper exterior body of the container. By providing the cut as described above, the exterior body can be removed from the container main body. This is convenient when separate disposal is required when the material of the container body and the exterior body are different.

  In addition, although the paper heat insulation cup was illustrated as an example of embodiment of this invention, the plastics base material other than a paper base material can be used for the container main body in this invention. Moreover, the exterior body in this invention can use a plastic base material besides a paper base material.

  A cross section of the paper container with an opening function of the present invention is schematically shown in FIG. This paper container 1 has a trapezoidal cross section by joining substantially fan-shaped polyethylene coated paper having a polyethylene resin layer formed on one side thereof with overlapping edges so that the polyethylene resin layer surface is inside. A flange portion 10b including an outer winding opening edge portion is formed by curling the peripheral edge of the larger opening portion of the cylindrical body portion 10a material outward.

  At the same time, the cross section provided with a peripheral wall formed by forming a circular polyethylene coated paper having a polyethylene resin layer formed on one side in the smaller opening portion so that the polyethylene resin layer becomes a convex side surface. A bottomed paper container main body 10 in which a bottom member 10d having a letter shape is inserted and the edge of the smaller opening of the body 10a is covered with the peripheral wall of the bottom member 10d and thermally bonded, and the larger one The inner folding portion 20d of a substantially fan-shaped cardboard formed by extending an inner folding portion 20d having a predetermined width that is folded inwardly at the periphery of the opening is folded inward, and both end edges are overlapped and joined to form a cross section. A trapezoidal cylindrical shape, a flange 11b lower end outer peripheral wall formed of an outer winding opening edge of the paper container main body 10, the inner folding part 20d, and a bottom 10c outer peripheral wall of the paper container main body 10 The smaller opening of the paper outer package 20 The paper container main body 10 and the paper outer casing 20 are integrally combined by heat bonding at the edges to insulate between the inner surface of the paper outer casing 20 and the outer peripheral wall of the trunk portion 10a of the paper container main body 10. It is a paper container with an opening function having a two-layer structure in which a space is formed.

  As a material of the paper container body 10 in the present invention, a laminate in which paper is used as a base material layer and a polyolefin resin is laminated at least on the inner surface is used. As the paper, cup base paper is mainly used, and its basis weight is about 150 to 450 g / m <2>. On the inner surface of the cup base paper, a polyolefin resin layer such as a low density polyethylene resin, a medium density polyethylene resin, a high density polyethylene resin, or a linear low density polyethylene resin is formed by extrusion coating in the range of 20 to 80 μm. This polyolefin resin layer improves the cup moldability and the sealing performance of the lid (not shown) by heat sealing, in addition to preventing the contents from penetrating into the paperboard and improving the contents protection suitability. Has an effect.

  FIG. 6B is a developed view schematically showing a blank plate in which the paper outer package 20 used in the paper container with an opening function of the present invention is developed, and the blank plate 20 ′ has a larger opening. Is formed of a substantially fan-shaped cardboard formed by extending an inner folding portion 20d having a predetermined width to be folded inward, and from the required position of the edge of one larger opening of the blank plate 20 'to the other. A plurality of cuts 20b, 20b are provided in a "U" shape up to a required position toward the edge of the smaller opening, and from the cut having a roundness as opening opening means at the "U" tip. The knob part 20a to be formed is partitioned. Then, concealment information 30 is provided on the back surface of the paper outer package 20 in the unsealed area defined by the plurality of cut lines 20b and 20b.

As the material of the paper outer package 20 described above, cardboard or coated ball paperboard having a basis weight of 200 to 450 g / m @ 2 can be used. If the basis weight is less than this limit, the rigidity of the paper outer package 20 becomes too low, particularly when the heat is high, the deflection becomes too large and loses sufficient heat insulation. If the basis weight is exceeded, the rigidity becomes high. However, it is not preferable because the proper folding process of the inner folding piece 20d is deteriorated and the material cost is increased.

  Examples of the concealment information 30 in the present invention include two-dimensional barcodes such as letters, numbers, and QR codes, serial information, and the like. For example, it can be used for sales promotion or the like by providing prizes as prize application, authenticity determination, distribution route grasp, lottery number and the like.

  The concealment information 30 such as two-dimensional barcodes such as letters, numbers, QR codes, and serial information, and the like, for example, by a normal printing method such as offset printing, gravure printing, etc. using a normal ink composition Can be formed. Furthermore, it can also print by an inkjet recording system.

  The cut 20b and the cuts 20c and 20d in the present invention can be formed by a cut line or a half cut line. Usually, multiple cuts are made. And the shape of a cut | interruption may be linear form, substantially Z-shape, or a deformation | transformation cut | interruption, and the shape in particular is not specified.

  Next, the paper container 1A with an opening function is illustrated and the manufacturing method of the paper container with an opening function of this invention is demonstrated easily. First, printing of a pattern, a display, etc. is performed on the surface of the cardboard for the paper outer package 20, and on the rear surface, an opening area of the paper outer package 20, that is, letters, numbers, The concealment information 30 such as a two-dimensional bar code such as a QR code or serial information is printed. Next, while punching out in the shape of a fan, the cut 20b including the above-described rounded cut portion 20a is also processed at the same time to create a blank plate 20 'of the paper outer package 20.

  On the other hand, an inverted truncated cone-shaped body 10a is formed from a blank plate (not shown) for the cup-shaped paper container body 10 by a cup forming machine, and the lower part of the body 10a is wound around the bottom plate 10d. The bottom portion 10c is molded, and the peripheral edge of the upper opening is curled outward to form the flange portion 10b composed of the outer winding opening edge, whereby the cup-shaped paper container body 20 is manufactured.

  On the other hand, the inner folding part 20d is folded inward from the blank board 20 'made of substantially fan-shaped thick paper by extending the inner folding part 20d of a predetermined width to be folded inside for the paper outer package 20, and the inverted cone is folded inwardly. A trapezoidal paper outer package 20 is formed and stacked. Finally, the outer peripheral wall of the lower end of the flange portion 11b composed of the outer edge of the outer winding opening, the inner folding portion 20d, and the inner folding portion 20d, which are in contact with each other with respect to the paper container body 10 formed with the paper outer package 20, The outer peripheral wall of the bottom 10c of the paper container body 10 and the smaller opening edge of the paper exterior body 20 are attached by thermal bonding, and the paper container body 10 and the paper exterior body 20 are combined together. Thus, a two-layered paper container with an opening function in which a heat insulating space is formed between the inner surface of the paper outer package 20 and the outer peripheral wall of the body portion 10a of the paper container main body 10 is obtained.

  1A of paper containers with an opening function of this invention comprised as mentioned above are said by making the said knob | pick part 20a which consists of the said cut with the roundness formed in the said paper-made exterior bodies 20 with a finger | toe, and open. The paper outer body is opened so that the paper outer body gradually spreads in the opening direction and the bottom direction of the paper container body 10 along the slits 20b, 20b, forming an opening region 20c, and on the back surface of the paper outer body 20 The concealment information of the provided opening area 20c can be confirmed.

And the paper container with an opening function of the present invention is arranged such that the opening breaks along the adjacent cuts even if the tearing direction of the exterior body varies, thereby rounding the opening region of the opening start portion. It can be reliably opened along the cut from the knob part made of the cut, and the concealment information provided on the inner peripheral wall of the trunk of the container body or the inner surface of the paper exterior body can be easily confirmed. It can be used for sales promotion, etc. by providing prizes as authenticity determination, distribution route grasping, and lottery numbers.

  Furthermore, since the paper container with an opening function of the present invention is discarded as a paper product after use and can be recycled, it can contribute to a reduction in environmental load.

An example of the container with an opening function of this invention is shown illustratively, Comprising: (a) is an external appearance perspective view which shows the unopened state of a paper-made exterior body. (B) is an opening start area formed by opening from a knob having a round cut as an opening start means along the cut, and the concealment information provided on the inner surface of the opening area of the paper outer package is easily visually recognized. It is an external appearance perspective view which shows the open state of the paper-made exterior body made. It is sectional drawing which shows typically an example of the paper container with an opening function of this invention shown in FIG. The other example of the paper container with an opening function of this invention is shown typically, Comprising: (a) is an external appearance perspective view which shows the unopened state of a paper-made exterior body. (B) is an opening start area formed by opening from a knob having a round cut as an opening start means along the cut, and the concealment information provided on the inner surface of the opening area of the paper outer package is easily visually recognized. It is an external appearance perspective view which shows the open state of the paper-made exterior body made. FIG. 3 is a diagram illustrating still another example of a paper container with an opening function according to the present invention, in which (a) is an external perspective view showing an unopened state of a paper outer package. (B) is an opening start area formed by opening from a knob having a round cut as an opening start means along the cut, and the concealment information provided on the inner surface of the opening area of the paper outer package is easily visually recognized. It is an external appearance perspective view which shows the open state of the paper-made exterior body made. It is an external appearance perspective view which shows an example of the conventional paper container with an opening function, Comprising: (a) is an external appearance perspective view which shows the unopened state of a paper-made exterior body. (B) is a state in which the concealment information provided on the inner surface of the unsealed area of the paper exterior body is partially visible when the unsealed area is formed by unsealing from a knob having a rounded cut as an unsealing start means. FIG. 6 (a) is a plan view schematically showing a developed blank plate of a paper outer package used in the conventional paper container with an opening function shown in FIG. 5, and FIG. 6 (b) is a plan view of the present invention shown in FIG. It is a top view which shows roughly the expansion | deployment blank board of the paper-made exterior body used for a paper container with an opening function.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Paper container with an opening function 1A ... Paper container with an opening function 1B ... Paper container with an opening function 1C ... Paper container with an opening function 1D ... Conventional paper container with an opening function 10 ... Paper container body 10a ... Body part 10b ... Out Winding edge (flange)
10c ... bottom 10d ... bottom material 20 ... paper outer package 20a ... opening start part (pick part)
20b ... Cut 20c ... Paper exterior unsealed part 20d ... Inner folded piece 20e ... Cut 20f ... Cut 30 ... Concealment information 20 '... Paper exterior body blank plate 20 "... Paper exterior body blank plate X1 ... Upper end position X2 ... opening start part (a knob part made of a cut having a roundness) upper end position X3 ... lower opening position X4 (a knob part made of a cut having a roundness) lower end position X4 ... lower end position X5 of a cut ... lower end position X6 ... Cut lower end position

Claims (4)

In a paper container with an opening function consisting of at least a container main body and an exterior body bonded and integrated so as to cover the outside of the container main body,
The exterior body is a paper container with an opening function in which an opening start part consisting of a cut, a cut for opening in the opening direction from the opening start part toward the opening and bottom part of the container body is provided,
Opening cuts that are sequentially provided in the opening direction from the opening start part toward the opening of the container body are such that the lower end of the cut provided next to the upper end of the opening start part side is on the bottom side of the container body The opening cut provided sequentially in the opening direction from the opening start portion toward the bottom of the container main body has the upper end of the cut provided next to the lower end of the opening start portion side opening of the container main body. A paper container with an opening function, characterized in that it is provided on the side of the section.   The paper container with an opening function according to claim 1, wherein the opening start portion is formed of a rounded cut.   The paper container with an opening function according to claim 1 or 2, wherein the opening start portion is provided at a position that is at least half the height of the exterior body.   4. A transverse cut is provided so as to be continuous with the opening cuts sequentially provided in the opening direction from the opening start portion toward the bottom of the container body. A paper container with an opening function described in 1.

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