JP2013001433A - Packaging container and method of manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container having a sealing lid that is prevented from being broken during manufacturing processes, distribution processes, and storage of the packaging container.SOLUTION: A packaging container 101 includes a cylindrical container body 110 having a bottom and an opening 111, a sealing lid 120, a protective sheet 130, a shrink film 140, and a self-adhesive label 150. The sealing lid 120 keeps one side faces sealed to the opening 111 of the cylindrical container body 110 and has cutting lines 121 radiating from the center. The protective sheet 130 covers the whole of the cutting lines 121 of the sealing lid 120, and is attached to the other side of the sealing lid 120 so as to be separable from the sealing lid 120. The shrink film 140 circularly surrounds, along the peripheral edge of the opening, a portion of the sidewall of the cylindrical container body 110 and the perimeter of the sealing lid 120. The self-adhesive label 150 is attached to a part including the inner peripheral edge, out of the whole of the protective sheet 130 and a portion of the shrink film 140 which covers the sealing lid 120.

Description

  The present invention relates to a packaging container for packaging a fluid substance such as powder or granule and transferring contents to a storage container, and a method for manufacturing the packaging container.

  As powdered food refill packaging (sorting) packaging container imparted with functions such as instant coffee, a sealing lid with perforations sealed to the opening of the container body, further, in order to protect the sealing lid In some cases, a packaging container in which a seal lid is separately covered with an overcap is used (for example, Patent Document 1). Patent Document 2 discloses an overcap in which radial ribs are provided on the inner surface of the top plate. By covering the seal lid with the overcap, the seal lid is suppressed by the radial ribs and the lateral ribs, and the seal lid is prevented from being broken. When using the packaging container, press the seal lid with the overcap removed. Since the perforation is formed in the seal lid, it is easily opened by pressing.

JP 2009-280283 A JP 2009-280285 A

  FIG. 9 is a top view and a side view for explaining the breakage of the seal lid that seals the opening of the container body.

  In the manufacturing process of the packaging container described above, the container body 910 seals the lid 920 is attached is toward the process after mounting the overcap, or is conveyed by a plurality ordered state the conveyor, the stopper on the conveyor Or set on a star wheel type transfer device. When a pressing force is applied to the opening 911 of the container main body 910 from an adjacent container main body 910 or a stopper, the opening 911 of the container main body 910 is deformed into an elliptical shape. At this time, depending on the direction of the cutting line 923, there arises a problem that the seal lid 920 is broken along the cutting line 923 due to the tension generated non-uniformly on the seal lid 920.

  Further, the sealing prepackaged packaging container, the distribution process, such as by external shock or a pressing force in transportation or during storage or the like, that seal the lid to rupture along the cutting line to be strength to weakest An unexpected situation occurs. Furthermore, the sealed and sealed packaging container may be transported to an environment (for example, a high altitude area) having a different atmospheric pressure and temperature from the place where the contents are packaged in the distribution process. When the external atmospheric pressure is different from the pressure inside the packaging container, a pressure difference is generated between the inside and outside of the packaging container. Further, when the pressure inside the packaging container changes due to temperature change, a pressure difference is generated between the inside and outside of the packaging container. When the overcap of the packaging container is removed in such a state, there arises a problem that the seal lid unexpectedly bursts.

  Therefore, an object of the present invention is to provide a packaging container in which a seal lid is not broken not only during distribution and storage but also in the manufacturing process, and a method for manufacturing the packaging container. Another object of the present invention is to provide a sealing lid that does not rupture when the packaging container is opened.

  The present invention relates to a packaging container for packaging powdery or granular contents and transferring the contents to another container. The packaging container has a cylindrical container body having an opening and a bottom, and seals the container body by being sealed by the opening, and a cutting line extending radially from the center is formed by pressing from the outside. A seal cover that breaks, a protective sheet that covers at least the entire cutting line, and is attached to the other surface of the seal cover so as to be peelable from the seal cover, along the periphery of the opening, at least part of the side wall, and, covering a shrink film surrounding the periphery of the seal lid ring, and regions not covered by the shrink film on the sealing lid, a region along the entire inner periphery of the shrink film Thus, at least a protective sheet and an adhesive label attached to the shrink film are provided.

  ADVANTAGE OF THE INVENTION According to this invention, the sealing lid by which fracture | rupture was prevented at the time of the manufacture process of a packaging container, a distribution process, and a preservation | save is realizable. Further, according to the present invention, it is possible to realize a seal lid that is prevented from being unexpectedly broken when the packaging container is opened.

The perspective view of the packaging container which concerns on 1st Embodiment Sectional drawing along the AA line of the packaging container shown in FIG. The top view and front view explaining the manufacturing method of the packaging container which concerns on 1st Embodiment Front view explaining the process following FIG. 3A Front view explaining the process following FIG. 3B Front view explaining the process following FIG. 3C Top view and side view for explaining breakage of seal lid for sealing opening of container body

(First embodiment)
FIG. 1 is a perspective view of a packaging container according to the first embodiment. FIG. 2 is a cross-sectional view taken along line AA of the packaging container shown in FIG. In addition, in FIG. 2, the cross section of the one part packaging container containing an opening part is shown.

  The packaging container 101 is for refilling the contents, similar to the one described in Patent Document 1. The packaging container 101 includes a container body 110, a funnel part 160, a seal lid 120, a protection sheet 130, a shrink film 140, and an adhesive label 150. The container body 110 is filled with contents (not shown) such as powder.

  The container main body 110 is a container for containing the contents, and is formed in a cylindrical shape having an opening 111 and a bottom.

  The funnel part 160 functions as a guide for guiding the contents to the refill destination container when the contents portion is refilled. The funnel part 160 is mounted inside the container body 110 with the narrow mouth side facing the open end of the container body 110.

  One side of the seal lid 120 (the lower surface in FIG. 2) is sealed by the opening 111 of the container body 110 to seal the container body 110. In addition, a radial cutting line 123 is formed on the seal lid 120 over a predetermined length from the center in order to facilitate breakage when pressed when refilling. The cutting line 123 is formed by a perforation or a half cut. Note that the length, number, shape, and the like of the cutting line 123 can be arbitrarily set according to the material of the seal lid 120 and the shape of the container to which the contents are refilled. At this time, it is preferable to form the cutting line 123 so as not to reach the peripheral edge of the seal lid 120 in order to prevent breakage due to an impact or the like when dropped.

  Protective sheet 130 is intended to prevent unintentional rupture of the seal cover 120 covers the entire cutting line 123, and the other surface of the sealing cap 120 so as to be peeled off from the sealing cover 120 (FIG. 2 Is attached to the upper surface).

  Here, the protective sheet 130 needs to have sufficient strength so as not to be broken. Further, in order to protect the seal lid 120 from the force applied to the seal lid 120 due to the change in the internal pressure of the packaging container 101 and the deformation of the opening 111, it is necessary to use a material that is difficult to deform. Protection sheet 130 is further a rolled up in the direction of peeling the sealing lid 120 to facilitate, and to facilitate focus tension to the peeling position, is required to be a material having flexibility. Therefore, for example, a laminated film having PET (polyethylene terephthalate) and a weak adhesive layer is preferably used as the base material of the protective sheet 130, but the layer configuration is arbitrary as long as the seal lid 120 can be protected. . In addition, in order to attach the protective sheet 130 to the seal lid 120 in a peelable manner, for example, a layer structure in which an adhesive layer is laminated on one surface of a base material (PET or the like) and a peeling varnish is applied in a dot shape thereon. A protective sheet 130 having However, as long as the protective sheet 130 can be detachably attached from the seal lid 120, a protective sheet having another layer structure such as an easy peel film may be employed.

  The shrink film 140 is attached so as to surround a part of the side wall of the container main body 110 and the peripheral part of the seal lid 120 along the periphery of the opening 111 of the container main body 110.

  Adhesive label 150 comprises a region not covered with the shrink film 140 seals the lid 120 on, so as to cover the area along the entire inner periphery of the shrink film 140, Paste the protection sheet 130 and the shrink film 140 It has been. The adhesive strength between the pressure-sensitive adhesive label 150, the protective sheet 130, and the shrink film 140 is preferably strong so that it does not peel off during the distribution process or storage of the packaging container 101. In addition, the adhesive strength between the adhesive label 150 and the protective sheet 130 is higher than the adhesive strength between the protective sheet 130 and the seal lid 120. The adhesive label 150 is composed of, for example, a paper layer, a PET layer, and a strong adhesive layer. However, the layer structure is not particularly limited, and any layer structure can be used as long as it is adhered to the protective sheet 130 or the shrink film 140.

  Below, the manufacturing method of the packaging container which concerns on 1st Embodiment is demonstrated using FIG. 3A shows a top view for explaining the manufacturing method, and FIG. 3A shows a cross-sectional view taken along the line BB of FIG. 3A. 3B to 3D show a cross section of a part of the packaging container including the opening.

  First, as shown in FIG. 3A, one surface (the lower surface of FIG. 3A (b)) of the sheet material 125 on which the radially extending cutting lines 123 are formed is sealed in the opening 111 of the container body 110 arranged side by side. Note that a funnel part 160 is mounted inside the container main body 110 and filled with contents (not shown). And the part enclosed with a dashed-dotted line is punched out among the sheet | seat materials 125, and the container main body 110 by which the opening part was sealed with the sealing lid is obtained. In FIG. 3A, the sheet material 125 is simultaneously sealed with respect to the three packaging containers 110, but the number of the packaging containers 110 that simultaneously seal the sheet material 125 may be arbitrary. Further, the sheet material 125 may be sealed for each packaging container 110.

  Next, as illustrated in FIG. 3B, the protective sheet 130 is attached to the outer surface of the seal lid 120 so as to cover the entire cutting line 123.

  Next, as shown in FIG. 3C, along the periphery of the opening 111, shrink the part of the opening side upper end of the side wall 112 of the container body 110, an outer peripheral edge portion of the sealing cap 120 so as to surround the annular A film 140 is attached.

  A sealing a region 161 not covered with the shrink film 140 of the lid 120 on, so as to cover an area 162 along the entire inner periphery of the shrink film 140, the adhesive label with at least the protection sheet 130 and the shrink film 140 When 150 is pasted, the packaging container 101 according to the first embodiment is completed as shown in FIG. 3D.

  Thus, in the manufacturing process of the packaging container 101 according to the first embodiment, after the opening 111 is sealed with the seal lid 120, the cutting line 121 of the seal lid 120 is protected by the protective sheet 130. As a result, the sealing lid 120 is prevented from being broken during a process or a transporting process performed after the opening 111 is sealed with the sealing lid 120. In addition, the protective cover 130 reliably prevents the seal lid 120 from being broken during the distribution process and storage of the packaging container 101.

  Further, in the manufactured packaging container 101, the adhesive label 150 is strongly adhered to the shrink film 140 and the protective sheet 130. However, as described above, the adhesive force between the protective sheet 130 and the seal lid 120 is It is set relatively weak. Therefore, the shrink film 140, the adhesive label 150, and the protective sheet 130 can be peeled from the seal lid 120 in a state where the shrink film 140, the adhesive label 150, and the protective sheet 130 are integrated only by performing an operation of peeling the shrink film 140 at the time of use. Therefore, the user does not need to peel off the shrink film 140 and the protective sheet 130 separately, and can easily perform the opening operation.

  Furthermore, since the seal lid 120 is protected by the protective sheet 130, the adhesive label 150 does not need to be provided with a function for protecting the seal lid 120. Therefore, for example, manufacturing cost can be reduced by producing an adhesive label with thin paper or PET. Furthermore, the packaging container 101 can be used for a campaign or the like by printing a lottery or the like on the lower surface (adhesive surface side) of the protective sheet 130.

  Instead of sticking the protective sheet 130 after sealing the sheet material to the opening 111 (FIGS. 3A and 3B), the protective sheet 130 is stuck on the sheet material 125, and then the sheet material 125 is opened. The part 111 may be sealed. In this method, since the protective sheet 130 can be stuck along the sheet material 125 with no gap in a flat state, particularly when the protective sheet 130 is elastic (for example, when the layer structure does not include aluminum), It is effective.

  In the first embodiment, after bonding the sheet material to the opening of the container body, but by punching a sealing lid may be attached in advance punched seal cover the opening of the container body .

  Furthermore, in the first embodiment, the shrink film surrounds the periphery of the seal lid positioned outside the protective sheet in an annular shape, but a part of the side wall, the periphery of the seal lid, and the periphery of the protective sheet The part may be surrounded in an annular shape.

  Further, in the first embodiment, the protective sheet is attached to a part of the inside of the seal lid so as to cover the cutting line. However, the present invention is not particularly limited thereto. It may be attached to the seal lid so as to cover.

  In the first embodiment, a cylindrical container body is used. However, the shape of the container body is not particularly limited as long as it is cylindrical. For example, the cross-sectional shape may be a polygonal shape. At this time, it is preferable that the outer shape of the seal lid is formed in a shape that matches the cross section of the container body.

  INDUSTRIAL APPLICABILITY The present invention is useful for a packaging container or the like for transferring a fluid substance such as powder or granules to another container.

101, 201 Packaging container 110, 210 Container body 111, 211 Opening part 112 Side wall 120, 220 Seal lid 123 Cutting line 223 Perforation line 130 Protective sheet 140 Shrink film 150 Adhesive label 161, 162 Region 221 First sheet 222 Second sheet 224 Tabs 125, 225, 226 Sheet material

Claims (5)

A packaging container for packaging powdery or granular material and transferring the material to another container,
A cylindrical container body having an opening and a bottom, and
A funnel part mounted inside the container body, with the narrow side facing the opening,
A sealing lid that is sealed at one side of the opening to seal the container body, a cutting line extending radially from the center is formed, and is ruptured by external pressure;
A protective sheet that covers at least the entire cutting line and is attached to the other surface of the seal lid so as to be peelable from the seal lid;
A shrink film that annularly surrounds at least a part of the side wall of the container main body and the periphery of the seal lid along the periphery of the opening,
An adhesive label that is adhered to at least the protective sheet and the shrink film so as to cover an area not covered with the shrink film on the seal lid and an area along the entire circumference of the inner periphery of the shrink film. A packaging container.   The packaging container according to claim 1, wherein an adhesive strength between the protective sheet and the adhesive label is higher than an adhesive strength between the seal lid and the protective sheet.   The packaging container according to claim 1, wherein the protective sheet includes a polyethylene terephthalate layer and an adhesive layer. A packaging container manufacturing method for packaging powdery or granular material and transferring the material to another container,
Sealing one side of the sheet material forming the cutting line extending radially to the opening of the container body, and sealing the opening of the container body with a seal lid;
After sealing the seal lid to the opening, the protective sheet is attached to the other surface of the seal lid so as to be peelable so as to cover the entire cutting line and be peelable from the seal lid,
Along the periphery of the opening, a shrink film is attached so as to surround at least a part of the side wall of the container body and the periphery of the seal lid in an annular shape,
Adhesive labels are affixed to at least the protective sheet and the shrink film so as to cover an area not covered with the shrink film on the seal lid and an area along the entire circumference of the inner periphery of the shrink film. The manufacturing method of a packaging container. A packaging container manufacturing method for packaging powdery or granular material and transferring the material to another container,
On one side of the sheet material in which a radially extending cutting line is formed, at least the entire cutting line is covered, and a protective sheet is attached to the sheet material so as to be peelable from the sheet material,
Sealing the sheet material to the opening, and sealing the opening of the container body with a seal lid to which the protective sheet is attached;
Along the periphery of the opening, a shrink film is attached so as to surround at least a part of the side wall of the container body and the periphery of the seal lid in an annular shape,
Adhesive labels are affixed to at least the protective sheet and the shrink film so as to cover an area not covered with the shrink film on the seal lid and an area along the entire circumference of the inner peripheral edge of the shrink film. The manufacturing method of a packaging container.

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