JP2009202891A - Double container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a double container which is capable of preventing buckling in a cylindrical paper body from being generated, and consistently forming an inwardly curled opening edge part, and has confidential information such as a ticket for application and a lottery number at a part not to be recognized from the outside of the easily peelable area. <P>SOLUTION: In the double container, a bottomed paper container paper body having a barrel part composed in which a thermoplastic resin layer is layered at least on an inner surface thereof, and a peripheral edge of an opening part consists of an outwardly curled opening edge part, and a cylindrical paper body having an inwardly curled opening edge part are affixed to an outer side of the barrel part of the container paper body so that the inwardly curled opening edge part is located on the bottom part side of the container paper body. The easily peelable area demarcated by a cutting line is formed in a range from one intermediate line passing through a medium point of the length from the inwardly curled opening edge part in the height direction of the cylindrical paper body to the other opening edge opposite to the inwardly curled opening edge part opposite thereto, and the confidential information is provided at a back side of the cylindrical paper body in the easily peelable area peeled along the cutting line. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a double body composed of a paper container body used as a heat-insulating container for instant food, microwave cooked food, etc., poured with hot water, and a paper cylinder attached to the outer side of the body. More specifically, the present invention relates to a double container in which confidential information that can be used for sales promotion such as an application ticket, a lottery number, a score, and a bag appears when the paper tubular body is peeled off.

  Conventionally, for the purpose of promoting sales of contents such as food, means for giving a prize function to a package for packaging contents such as food has been used. As one of the means, for example, a winning ticket is stored in a concealed package, for example, a cup-shaped container, the cup-shaped container is opened, and information such as “hit and miss” as confidential information is provided. It can be confirmed. In this case, there is a problem in that the process becomes complicated and requires a lot of time, for example, a winning ticket needs to be prepared separately and an operation for putting it in a cup-shaped container is required.

  In order to solve the above-mentioned problem, an area partitioned by a cut line is provided in the cylindrical body of the double container, and this area is cut out along the cut line, whereby the rear surface of the cylindrical body in this area or the container body There has been disclosed a double container in which information such as “hit and miss” given to the surface on the cylindrical body side can be confirmed (for example, see Patent Document 1).

  However, the above-mentioned double container has a lot of secret information and a large area defined by the cut line formed in the cylindrical body, specifically, a case where the diameter is more than 3 cm, or the circumference of the cylindrical body When a cut line parallel to the direction is provided, for example, when an area defined by the cut line is rectangular, an inner winding opening edge curled inward is formed on the periphery of one opening of the cylindrical body. At this time, there is a problem that the tubular body is buckled by a cut line parallel to the circumferential direction of the tubular body, and a beautiful inner winding opening edge cannot be formed.

In order to solve the above-mentioned problem, a double container in which a peeling region is formed with a deformation cut line on a cylindrical body of the double container has been proposed (for example, see Patent Document 2). With the technique disclosed in Patent Document 2, the inner winding opening edge of the cylindrical body can be formed stably. However, depending on the production lot of the paper base material used for the cylindrical body, if there is variation in the paper basis weight, moisture content, etc., the inner winding opening edge curled inwardly at the periphery of one opening of the cylindrical body occasionally When forming the portion, the actual situation is that buckling may occur in the cylindrical body along the deformation cut line.
JP 2003-276738 A JP 2006-298391 A

  Therefore, the present invention has been made to solve the above-described problems, and the object of the present invention is to prevent buckling of the paper tubular body, and to prevent the inner winding opening edge from being formed. It is to provide a double container which can be formed stably and provided in a portion where secret information such as an application ticket and a lottery number cannot be visually recognized from the outside of the easily peelable area.

  The invention according to claim 1 of the present invention is a bottomed paper-made container having a trunk portion formed of an outer-winding opening edge portion in which a thermoplastic resin layer is laminated on at least an inner surface and the periphery of the opening portion is curled outward. A paper tubular body having a main body and an inner winding opening edge with the periphery of one opening curled inwardly, so that the inner winding opening edge is positioned on the bottom side of the paper container main body. A double container attached to the outer side of the body portion of the container body, from the inner opening edge in the height direction of the paper tubular body to the other opening edge facing the inner opening edge. A peelable easily peelable region defined by a score line is formed in a range from an intermediate line passing through a middle point of the length to the other opening edge, and the easily peelable region peeled along the score line is formed. The double container is characterized in that secret information is provided on the back surface of the paper cylinder.

  Further, the present invention according to claim 2 is the double container according to claim 1, wherein the easy peeling region is a length in a direction from the inner winding opening edge of the paper tubular body to the other opening edge. Further, it is characterized in that it is provided horizontally so that the length in the circumferential direction becomes longer.

  Further, the present invention according to claim 3 is characterized in that, in the double container according to claim 1 or 2, the corner portion of the score line defining the easy-peeling region is provided at least in a curved shape. is there.

  The double container of the present invention has an intermediate line passing through a middle point of the length from the inner winding opening edge in the height direction of the paper tubular body to the other opening edge facing the inner winding opening edge. Since the peelable easily peelable region defined by the cut line is formed in the range up to the other opening edge, the inner winding opening edge is stably formed without buckling of the paper tubular body. There is an effect that it is possible.

  In addition, since confidential information is provided on the back surface of the easy-peeling area formed on the paper cylinder, (1) it is not necessary to prepare a separate ticket or the like and there is no work of placing it in a container, and the process can be simplified. (2) The secret information can be concealed without touching the human eye until the easy peeling area is peeled off, and (3) the easy peeling area can be easily peeled along the score line. There is an effect that secret information such as an application ticket and a lottery number can be easily confirmed.

  Further, by providing a structure in which the easy-peeling region is horizontally long so that the length in the circumferential direction is longer than the length in the direction from the inner winding opening edge of the paper tubular body toward the other opening edge, The inner cylindrical opening edge can be stably formed without causing buckling of the paper tubular body.

  In addition, by forming at least the corners of the score line that divides the easy peeling region into a curved shape, wrinkles are generated at the corners of the easy peeling region when the inner winding opening edge is formed in the paper tubular body. The appearance of the paper tubular body can be made more beautiful.

The above-described present invention will be described in detail below with reference to the drawings.
FIG. 1 is a cross-sectional view schematically showing the structure of a double container according to the present invention. FIG. 2 is a schematic development view of a blank showing a first embodiment of a paper tubular body used in the double container according to the present invention. 3 is a diagram showing the back surface of FIG. 2, FIG. 4 is a schematic development view of a blank showing a second embodiment of a paper tubular body used in the double container according to the present invention, and FIG. 5 shows the back surface of FIG. In the figure, 1 is a double container, 2 is a paper container body, 3 is a paper tubular body, 3a and 3b are blanks, 20 is a trunk, 21 is an outer winding opening edge, and 22 is a bottom Material, 23 is a yarn twisting part, 30 is a sticking part, 31 is an inner winding opening edge part, 32 is a body sticking part, 33 is a curl forming part, 34 is the other opening edge, 34 'the other upper edge, 35 and 35 'are cut lines, 35a is a substantially L-shaped zipper, 36 is an end portion on the other upper end edge side of the curled portion, l is a length in the height direction, and r is a circumferential direction. Is, C is in an intermediate line, the range of S from the midline to the other upper edge, A, A 'are easily separable area, A1, A'1 is knob, A'2 is a corner respectively.

  FIG. 1 is a sectional view schematically showing the structure of a double container according to the present invention. The double container 1 has a substantially fan-shaped polyethylene laminate in which a polyethylene resin layer is laminated as a thermoplastic resin layer on one surface. Overlap the edges of the paper so that the polyethylene resin layer is on the inside, and join the paper to form a trapezoidal cylindrical section. And forming a polyethylene resin layer as a thermoplastic resin layer on one side of the folded portion formed by bending the lower end of the smaller smaller opening inward. A bottom material 22 having a U-shaped cross section with a bottom bent portion formed by bending the outer peripheral edge of the circular polyethylene laminated paper downward so that the polyethylene resin layer becomes a convex surface is inserted. , The bottom bent part is the body 2 The bottom edged paper container main body 2 in which the yarn-stitched portion 23 is formed by being sandwiched between the lower end portion and the folded portion and joined by thermocompression bonding, and both end edges of the substantially fan-shaped blank from which cardboard is punched It is overlapped and joined to form a trapezoidal cylindrical section, and has an adhering portion 30 at the end of the larger opening, and the inner edge of the inner opening is curled around the periphery of the smaller opening. The paper cylindrical body 3 is formed with a paper cylindrical body 3 inserted into the paper container main body 2 from the bottom 22 side of the paper container main body 2. Attached at the edge portion 21 side and the attaching portion 30.

  FIG. 2 is a schematic development view of a blank showing a first embodiment of a paper tubular body used for a double container according to the present invention. As shown in FIG. 2, the blank 3a of the paper tubular body 3 is obtained by punching cardboard in a substantially fan shape, and its left and right end portions (upper and lower sides in FIG. 2) are a cylinder pasting portion 32, a paper tubular body. One lower end edge (the right side in FIG. 2) in the height direction 3 is a curl forming scheduled portion 33 that is curled inwardly and formed into an inner winding opening edge portion 31. The other upper end edge 34 ′ (corresponding to the other opening edge 34 of the cylindrical paper-made body 3) that faces the curl-scheduled portion 33 is on the side of the outer opening edge 21 of the paper-made container body 2. The sticking part 30 stuck is attached. Further, in the blank 3a, the median point of the length from the inner winding opening edge 31 in the height direction to the other opening edge 34 facing the inner winding opening edge 31 in the paper tubular body 3 is provided. A peelable easily peelable region A defined by a cut line 35 is formed in a range S (portion indicated by halftone dots) from the passing intermediate line C to the other upper edge 34 '. The easy-peeling area A is horizontally long so that the length r in the circumferential direction is longer than the length l in the height direction from the curled forming portion 33 toward the other upper edge 34 '. The position of the intermediate line C in FIG. 1 passes through the middle point of the other upper end edge 34 ′ from the end 36 on the other upper end edge 34 ′ side of the curled forming part 33 in FIG. 2. The easily peelable area A can be made vertically long, but if it is provided horizontally, the inner cylindrical opening edge 31 can be stably formed without causing buckling of the paper tubular body 3. Is preferable. Moreover, it is preferable to form the easy peeling area A so as not to overlap the body pasting part 32 and the sticking part 30. Moreover, although the shape of the easy peeling area | region A is made into the rectangular shape in this example, it can be made into a circle, an ellipse, a triangle, etc. in addition, and is not specifically limited.

  The cut line 35 that divides the easy peeling region A is provided with a U-shaped cut having a blade stopper and a substantially L-shaped zipper 35a on the knob A1, and is opposed to the knob A1. The sides are configured with straight cuts with blade stoppers. The shape of the cut line 35 is not particularly limited as long as it is an intermittent cut, and can be constituted by a straight line, a curve, or a combination thereof.

  The blank 3a thus configured has a cross section in which the cylinder pasting portions 32 at both ends are overlapped with the other cylinder pasting portion 32 and enveloped with an adhesive so that the one cylinder pasting portion 32 becomes the outer edge. Is formed into a trapezoidal cylindrical shape, and a curled molding scheduled portion 33 provided on the periphery of the smaller opening portion is curled inward to form an inner winding opening edge portion 31 to obtain a paper cylindrical body 3. be able to. As shown in FIG. 3, confidential information is provided on the back surface of the easily peelable area A delimited by the cut line 35. The confidential information includes application ticket numbers, lottery numbers, and traps that are the keys to the application for the prize, such as identification character strings, hit information, information subject to lottery, points, etc. . In this example, for example, hit information is printed as the hit information.

  The double container 1 in which the paper cylindrical body 3 composed of the blank 3 a configured as described above is inserted into the paper container main body 2 is a knob portion formed in the easy peeling region A of the paper cylindrical body 3. By picking A1 with fingers, the easy-peeling area A can be peeled from the U-shaped cut along the substantially L-shaped zipper 35a, and is provided on the back surface of the paper tubular body 3 in the easy-peeling area A. The confidential information can be confirmed.

  FIG. 4 is a schematic development view of a blank showing a second embodiment of the paper cylinder used in the double container according to the present invention. As shown in FIG. 4, the blank 3b of the paper tubular body 3 is obtained by punching cardboard in a substantially fan shape, and its left and right end portions (upper and lower sides in FIG. 4) are cylinder pasting portions 32, One lower end edge (the right side in FIG. 4) in the height direction of 3 is a curl-scheduled portion 33 that is curled inward to form an inner winding opening edge 31. The other upper end edge 34 ′ (corresponding to the other opening edge 34 of the cylindrical paper-made body 3) that faces the curl-scheduled portion 33 is on the side of the outer opening edge 21 of the paper-made container body 2. The sticking part 30 stuck is attached. Further, in the blank 3b, the median point of the length from the inner winding opening edge 31 in the height direction to the other opening edge 34 facing the inner winding opening edge 31 in the paper tubular body 3 is provided. A peelable easily peelable region A ′ defined by a perforated cut line 35 ′ is formed in a range S (portion indicated by halftone dots) from the passing intermediate line C to the other upper edge 34 ′. The easily peelable region A ′ is provided in a horizontally-long rectangular shape so that the length in the circumferential direction is longer than the length in the height direction from the curled molding scheduled portion 33 toward the other upper end edge 34 ′. The sides facing '1 and the knob A'1 have an arc shape. Thus, by providing the corner portion A′2 of the cut line 35 ′ defining the easy peeling region A ′ in a curved shape, the easy peeling region is formed when the inner winding opening edge 31 is formed in the paper tubular body 3. The appearance of the paper tubular body 3 can be made more beautiful without wrinkles occurring at the corner A′2 of A ′.

  FIG. 5 shows the back side of the blank 3b of FIG. As shown in FIG. 5, the same confidential information as that of the first embodiment is provided on the back surface of the easily peelable area A ′ defined by the cut line 35 ′. Others are the same as in the first embodiment, and a description thereof will be omitted.

Next, the material which comprises the double container concerning this invention is demonstrated. As a material for the paper container body 2, a laminate in which paper is used as a base material layer and a thermoplastic resin layer is laminated on at least 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 . The inner surface of the cup base paper is extrusion coated with 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 in a range of 15 to 80 μm. It is formed. This polyolefin-based resin layer and polyester resin improve the cup formability at the bottom, curl, and body pasting parts in addition to preventing penetration of the contents into the paperboard and improving the contents protection suitability. 3), the effect of improving the sealing performance by heat sealing at the outer edge 21 of the outer winding. The paper container body 2 can be a plastic cup mainly made of plastic.

On the other hand, as the material for the paper-made tubular body 3, cardboard such as card paper having a basis weight of 200 to 450 g / m ² and coated cardboard can be used. If the basis weight is less than 200 g / m ² , the rigidity of the paper tubular body 3 becomes too low, and the deflection becomes too large especially at high heat, so that a sufficient heat insulating effect cannot be obtained, and 450 g / m ² is reduced. If it exceeds, the rigidity becomes high, but the workability of the inner winding opening edge 31 is lowered, and the material cost is also increased, which is not preferable.

  Next, the double container of the present invention will be described in more detail with reference to examples.

Using a laminated body of cup base paper 250 g / m ² / low density polyethylene resin 25 μm from the outer surface side, the inner diameter of the opening is 130.0 mmφ, the outer diameter of the bottom is 100.0 mmφ, and the height is 105.0 mm. A paper container main body 2 having an amount of 700.0 cc (when fully charged) was produced.

Next, using the coated ball 270 g / m ² , the circumferential length of the body pasting portion 32 is set to 10 mm, the upper end inner diameter is 132.0 mmφ, and the lower end is curled. A paper tubular body 3 having an inner winding opening edge 31 is produced by curling the planned portion 33 inward, and the paper tubular body 3 is fitted into the paper container body 2 to attach the adhesive portion to the adhesive. A double container 1 was prepared by sticking with The easy-peeling area A is a rectangular shape of 20 mm away from the edge of the body pasting portion 32 and 20 mm away from the other opening edge 34, and the cut line 35 is an L-shaped zipper. As shown in FIG. In addition, the length of the height direction of the sticking part 30 was 15 mm, and the intermediate line C was made to be 50 mm from the other opening edge 34. In addition, on the back surface of the easy peeling area A, “winning” and “removal” of the lottery were printed in advance.

  In Example 2, only the shape of the easily peelable region A and the shape of the score line in Example 1 are changed, and l = 15 mm and r = 60 mm, and the side facing the knob A′1 and the knob A′1 is a circle. A double container was produced in the shape shown in FIG.

  A double container was produced in the same manner as in Example 1 except that the size of the easy peeling region was a square of l = 30 mm and r = 30 mm.

[Comparative Example 1]
Only the position where the easy-peeling area A was provided was changed, and the same double container as in Example 1 was produced. That is, the easy-peeling area A was a rectangular shape of 20 mm from the edge of the body pasting portion 32 and 1 = 15 mm and r = 60 mm from a position away from the other opening edge 34 by 50 mm.

[Comparative Example 2]
The easy peeling region A was provided in a rectangular shape of 20 mm from the edge of the body pasting portion 32 and 1 = 15 mm and r = 60 mm from a position 65 mm away from the other opening edge 34. A double container was produced in the same manner as in Example 1 except for the position where the easy peeling region A was provided.

  The double containers of Examples 1 to 3 were good because the inner cylindrical opening edge could be stably formed without buckling of the paper tubular body. Moreover, the easy peeling region could be easily peeled along the score line, and the “hit” and “displacement” of the wrinkles could be visually recognized. In Comparative Examples 1 and 2, buckling occurred in a portion close to the easy peeling region when the inner winding opening edge was formed in the paper tubular body.

It is sectional drawing which shows the structure of the double container concerning this invention schematically. It is a schematic expanded view of the blank which shows 1st Embodiment of the paper-made cylindrical body used for the double container concerning this invention. It is a figure which shows the back surface of FIG. It is a schematic expanded view of the blank which shows 2nd Embodiment of the paper-made cylindrical body used for the double container concerning this invention. It is a figure which shows the back surface of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Double container 2 Paper container main body 3 Paper cylindrical body 3a, 3b Frank 20 Body material 21 Outer winding opening edge part 22 Bottom material 23 Yarn binding part 30 Sticking part 31 Inner winding opening edge part 32 Trunk adhesion part 33 Curl molding scheduled portion 34 Other opening edge 34 'Other upper edge 35, 35' Cut line 35a Approximate L-shaped zipper 36 End portion on the other upper edge side of the curled molding portion l Length in height direction r Length in the circumferential direction C Intermediate line S Range from the intermediate line to the other upper edge A, A 'Easy peeling area A1, A'1 Knob part A'2 Corner part

Claims (3)

A bottomed paper container body having a body made of an outer-wrapped opening edge with a thermoplastic resin layer laminated at least on the inner surface and the periphery of the opening curled outward, and the periphery of one opening is the inner side A paper tubular body having an inner-wound opening edge curled on the outer side of the body portion of the paper-made container body so that the inner-winding opening edge portion is located on the bottom side of the paper-made container body. From an intermediate line that passes through the middle point of the length from the inner winding opening edge in the height direction of the paper tubular body to the other opening edge facing the inner winding opening edge. A peelable easily peelable area partitioned by a score line is formed within the range up to the other opening edge, and confidential information is formed on the back surface of the paper tubular body of the easily peelable area peeled along the score line. A double container characterized in that is provided. The easily peelable region is provided in a horizontally long shape so that a length in a circumferential direction is longer than a length in a direction from the inner winding opening edge of the paper tubular body toward the other opening edge. The double container according to claim 1. 3. The double container according to claim 1, wherein corners of the score line defining the easy peeling region are provided at least in a curved shape.

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