JP2012201382A - Packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container which can be kept tightly sealed after re-sealed.SOLUTION: The packaging container 100 formed by covering the opening 102 of a container body 101 with a tape material 103 includes: the container body having the opening; an adhesive tape material which includes an adhesive layer and a release paper layer, the adhesive layer being stuck to the outer surface of a peripheral edge part of the opening of the container body surrounding the opening; a window adhesive material thermally fused to the inner surface of the peripheral edge part of the opening of the container body and covering the opening; and a tape material thermally fused to the outer surface of the container body and covering the whole of the adhesive tape material and the opening.

Description

  The present invention relates to a packaging container that includes an opening and can be resealed with a tape material covering the opening.

  Conventionally, as a packaging container, a packaging container is known in which a tape material is attached to the periphery of an opening, and the opening is covered to form a sealing portion. Such a packaging container can maintain hermeticity during storage, and when the contents are taken out, the tape material can be peeled off to expose the opening and can be opened.

  The example of such a sealing part is shown below. Patent Document 1 discloses a sealing portion 610 having a cross section shown in FIG. In the sealing part 610, a paper peeling prevention member 611 is attached so as to surround the opening part 602 on the outer surface side of the peripheral part of the opening part 602 of the container main body 601. Further, a tape material 603 that covers the opening 602 is attached to the paper peeling prevention member 611. Further, a window sticking material 605 is attached to the inner surface side of the peripheral edge of the opening 602 so as to cover the opening 602, thereby sealing the opening 602. A portion covering the opening 602 of the tape material 603 is bonded to the window pasting material 605. When the tape material 603 is peeled off, the window pasting material 605 is cut along the periphery of the opening 602 and the like, and is removed from the container main body 601 together with the tape material 603, and the sealing portion 610. Can be opened.

  Patent Document 2 discloses a sealing portion 710 having a cross section shown in FIG. In the sealing portion 710, a first window pasting material 7051 and a second window pasting material 7052 are pasted around the opening 702 on the outer surface side of the peripheral portion of the opening 702 of the container main body 701. Further, a tape material 703 covering the opening is attached to the second window sticking material 7052 to seal the opening 702. When the tape material 703 is pulled, the second window sticking material 7052 to which the tape material 703 is attached is delaminated. Thereby, the tape material 703 is removed from the container main body 701 together with the peeling layer of the second window pasting material 7052, and the sealing portion 710 can be opened.

No. 1-10354 JP-A-9-110037

  When only a part of the contents is taken out from the packaging container provided with the sealing portion 610 and the rest is stored in the packaging container, the tape material is again attached to the peripheral edge portion of the opening and resealed. However, when the content is a powdery or granular substance, a part of the content adheres to the adhesive surface at the time of removal, so that the adhesive force is likely to decrease, and the packaging container after resealing It was difficult to maintain hermeticity. Moreover, the packaging container provided with the sealing portion 710 has no adhesive force on the peeling surface of the window pasting material 7052 once opened, and thus cannot be sealed again.

  Therefore, an object of the present invention is to provide a packaging container that can be suitably used for packaging a powdery or granular substance and can ensure hermeticity after resealing.

  The present invention is a packaging container in which an opening of a container main body is covered with a tape material, including a container main body having an opening, an adhesive layer and a release paper layer, on the outer surface of the peripheral edge of the opening of the container main body, The adhesive tape material that surrounds the opening and the adhesive layer is attached to the inner surface of the peripheral portion of the opening of the container body, and the window adhesive covering the opening and the outer surface of the container body And an adhesive tape material and a tape material covering the entire opening.

  Further, the present invention is a packaging container in which an opening of a container body is covered with a tape material, and the container body is made of a sheet material in which a window pasting layer covering the opening is laminated on the inner surface side on a member having the opening. And, including an adhesive layer and a release paper layer, on the outer surface of the peripheral portion of the opening of the container body, an adhesive tape material that surrounds the opening and is adhered to the outer surface of the container body, You may provide the adhesive tape material and the tape material which covers the whole opening part.

  ADVANTAGE OF THE INVENTION According to this invention, the packaging container which is easy to maintain the airtightness after resealing can be provided.

The perspective view of the packaging container which concerns on the 1st Embodiment of this invention The top view and sectional drawing of the packaging container which concern on the 1st Embodiment of this invention The figure which shows the range of the heat processing of the packaging container which concerns on the 1st Embodiment of this invention The figure which shows the procedure of opening and resealing of the packaging container which concerns on the 1st Embodiment of this invention Sectional drawing of the packaging container which concerns on the 2nd Embodiment of this invention. Sectional view of the sealing part of a conventional packaging container Sectional view of the sealing part of a conventional packaging container

(First embodiment)
The first embodiment of the present invention will be described below. FIG. 1 is a perspective view showing an appearance of a packaging container 100 according to the present embodiment. An opening 102 is provided in the container main body 101, and a tape material 103 is attached to the container main body 101 so as to cover the opening 102, thereby forming a sealing portion 110.

  FIGS. 2A and 2B are a top view of the sealing portion 110 and a cross-sectional view taken along the line AA ′ of the top view, respectively. An adhesive tape material 104 is attached to the outer surface of the peripheral edge of the opening of the container body 101 so as to surround the opening 102. Further, the tape material 103 is thermally welded to the outer surface of the container body 101 so as to cover the entire adhesive tape material 104 and the opening 102. Further, the window bonding material 105 is thermally welded to cover the opening 102 on the inner surface side of the peripheral edge of the opening 102 to seal the opening 102. The portion covering the opening 102 of the tape material 103 and the portion covering the opening 102 of the window pasting material 105 are thermally welded. Further, the adhesive tape material 104 includes an adhesive layer 106 attached to the container main body 101 and a release paper 107 laminated on the adhesive layer 106 so as to be peelable.

  An example of the layer structure of each member of such a packaging container 100 is shown below. The sheet material constituting the container body 101 has a layer structure of PE (polyethylene) / paper / PE / aluminum foil / PET (polyethylene terephthalate) / PE in order from the outer layer. The tape material 103 has a layer structure of PE / aluminum foil / PET in order from the side to be thermally welded to the container body 101. Or you may have the layer structure of PE / GL (transparent vapor deposition film) in the same order. Moreover, the window sticking material 105 contains the layer structure of PE / aluminum foil / PE in an order from the side heat-welded to the inner surface of the container main body 101. The adhesive layer 106 of the adhesive tape material 104 uses a strong adhesive acrylic emulsion type adhesive.

  An example of the shape of each member is shown below. In this example, the container main body 101 is a rectangular parallelepiped of 30 mm × 180 mm × 80 mm. The opening 102 is provided in the vicinity of one short side of the 30 mm × 80 mm surface of the container body 101 in an elliptical shape having a major axis of 25 mm and a minor axis of 15 mm. The adhesive tape material 104 has a rectangular shape of 24 mm × 45 mm. Further, the adhesive tape material 104 is provided with an elliptical hole 108 having a major axis of 28 mm and a minor axis of 18 mm so as not to block the opening 102 when being stuck to the container main body 101.

  The sheet material of the container main body 101 is subjected to die cutting including punching of the opening 102 by roll punching. After the adhesive tape material 104 is attached to the sheet material that has been die-cut, the window pasting material 105 and the tape material 103 are thermally welded by a hot plate. Then, the packaging body 100 is manufactured by shaping the container body 101, filling the contents, and sealing the contents.

  The positional relationship where each member is superimposed will be described. The annular adhesive tape material 104 is attached to the outer surface of the container body 101 so as to surround the periphery of the opening 102 of the container body 101. The window sticking material 105 is stuck on the inner surface of the container main body 101 so as to cover the opening 102. The tape material 103 has a size that can completely cover the adhesive tape material 104, and covers the entire adhesive tape material 104.

  FIG. 3 is a top view of the sealing portion 110 of the packaging container 100 corresponding to FIG. A region where heat treatment is performed by a hot plate for heat welding is shown in FIG. 3 surrounded by a thick line. Moreover, the area | region where the tape material 103 and the container main body 101 are heat-welded is shown with an oblique line. As shown in FIG. 3, the periphery of the tape material 103 excluding the opening start position (left end in FIG. 3) is thermally welded to the container body 101. Thus, by not welding the periphery of the opening start position, the tape material 103 can be easily pinched at the time of opening. In addition, in the area | region where the tape material 103 and the adhesive tape material 104 overlap, the release paper 107 exists, Therefore The tape material 103 and the adhesive tape material 104 are not heat-welded. Further, thermal welding is also performed on a part of the periphery of the tape material 103 on the opening start position side. In the present embodiment, a circular welding region 109 having a diameter of 3 mm is thermally welded. When the packaging container 100 is opened by mischief at the time of distribution etc., it can be detected that the opening of the welding area 109 has been peeled off, so that the opening is detected. By leaving the mark, it is possible to obtain a tamper evidence function (opening history clarification function) for preventing falsification or proving that it has not been opened.

  The procedure for opening the packaging container 100 will be described with reference to FIG. 4A is a cross-sectional view of the packaging container 100 corresponding to FIG. 2, and shows the state of the sealing portion 110 when not opened. When the tape material 103 is turned along the opening direction indicated by the arrow, the heat-welded portion between the tape material 103 and the container main body 101 is peeled off. When the tape material 103 is turned to a predetermined position, the opening portion 102 is exposed, and the portion covering the opening portion 102 of the window pasting material 105 is cut from the other portion attached to the tape material 103, The packaging container 100 is opened ((b) of FIG. 4).

  Next, the procedure for resealing the packaging container 101 will be described with continuing reference to FIG. After the necessary amount of content is taken out, the release paper 107 of the adhesive tape material 104 is peeled off and removed to expose the adhesive layer 106 ((c) in FIG. 4). When the tape material 103 is returned to the original position and the opening 102 is covered, the tape material 103 adheres to the adhesive layer 106 and the packaging container 100 can be resealed ((d) in FIG. 4). When the tape material 103 is turned again in the opening direction, the tape material 103 is peeled from the adhesive layer 106, the opening 102 is exposed, and the packaging container 100 can be re-sealed.

  In this way, when the packaging container 100 is resealed, the release paper 107 is peeled to expose the adhesive layer 106, thereby preventing the contents from adhering to the adhesive layer 106 before resealing. It is possible to easily maintain the sealing property at the time of resealing.

(Second Embodiment)
The second embodiment of the present invention will be described below. Since the packaging container 200 which concerns on this embodiment exhibits the external appearance similar to the packaging container 100 which concerns on 1st Embodiment, illustration is abbreviate | omitted. A cross-sectional view of the sealing portion 210 of the packaging container 200 is shown in FIG. In the packaging container 100 according to the first embodiment, the window pasting material 105 is welded so as to cover the opening 102 on the inner surface side of the peripheral edge of the opening 102 of the container main body 101 to seal the opening 102. On the other hand, in the packaging container 200 according to this embodiment, the innermost layer of the sheet material of the container body 201 seals the opening 202 and serves as a substitute for the window pasting material 105.

  As an example of the layer configuration of the sheet material of the container main body 201, PE / paper / PE / aluminum foil / extruded PE may be used from the outer surface side to the inner surface side of the packaging container 200. The sheet material of the container body 201 is formed by stacking PE / paper / PE / aluminum foil, punching the opening 202, then stacking extruded PE on the inner surface side, and performing die cutting by roll punching Is done. The opening 202 is covered with the extruded PE layer 205. The layer configuration of the tape material 203 and the adhesive tape material 204 is the same as that of the tape material 103 and the adhesive tape material 104 in the first embodiment.

  The shape of the container main body 201, the tape material 203, and the adhesive tape material 204, the overlapping positions, and the range of heat welding are the same as those of the packaging container 100 in the first embodiment. After the adhesive tape material 204 is attached to the sheet material of the container body 201 that has been die cut, the tape material 203 is thermally welded with a hot plate. Thereafter, the container body 201 is molded, filled with contents, and sealed, whereby the packaging container 200 is manufactured.

  The procedures for opening, resealing, and resealing the packaging container 200 are the same as those of the packaging container 100. That is, when the tape material 203 is turned along the opening direction, the heat welding portion between the tape material 203 and the container main body 201 is peeled off, and the portion covering the opening 202 of the PE layer 205 formed by extrusion of the container main body 201 is Since the tape material 203 is torn off from other parts, the packaging container 200 is opened. Further, after the contents are taken out, the release paper 207 of the adhesive tape material 204 is peeled off and removed, the adhesive layer 206 is exposed, the tape material 203 is returned to the original position, and the opening 202 is covered. Adheres to the adhesive layer 206, and the packaging container 200 can be resealed. When the tape material 203 is turned again in the opening direction, the tape material 203 is peeled from the adhesive layer 206, the opening 202 is exposed, and the packaging container 200 can be re-sealed.

  In this way, when the packaging container 200 is resealed, the release paper 207 is peeled off to expose the adhesive layer 206, thereby preventing the contents from adhering to the adhesive layer 206 before resealing. It is possible to easily maintain the sealing property at the time of resealing.

  As mentioned above, according to this invention, the packaging container which can ensure the airtightness after resealing can be provided. In particular, when a powdery or granular substance is used as the content, the effect is great. In addition, in each embodiment, the container body has been described as having a rectangular parallelepiped shape, but the sealing portion of the present invention can be applied to container bodies having various shapes such as a cylindrical shape.

  INDUSTRIAL APPLICATION This invention is useful for the packaging container etc. which are equipped with an opening part and can be resealed with the tape material which covers the said opening part.

100, 200 Packaging container 101, 201, 601, 701 Container body 102, 202, 602, 702 Opening 103, 203, 603, 703 Tape material 104, 204 Adhesive tape material 105, 605 Window adhesive material 106, 206 Adhesive layer 107 , 207 Release paper 108 Hole 109 Welded region 110, 210, 610, 710 Sealing portion 205 PE layer 611 Paper-slip prevention member 7051 First window paste 7052 Second window paste

Claims (4)

A packaging container in which the opening of the container body is covered with a tape material,
A container body having an opening;
An adhesive tape material including an adhesive layer and a release paper layer, and surrounding the opening on the outer surface of the peripheral edge of the opening of the container body; and
A window bonding material that is heat-welded to the inner surface of the peripheral edge of the opening of the container body, and covers the opening;
A packaging container comprising: a heat-welded outer surface of the container main body, and a tape material covering the whole of the adhesive tape material and the opening. A packaging container in which the opening of the container body is covered with a tape material,
A container body made of a sheet material in which a window pasting layer covering the opening is laminated on the inner surface side on a member having an opening,
An adhesive tape material including an adhesive layer and a release paper layer, and surrounding the opening on the outer surface of the peripheral edge of the opening of the container body;
A packaging container comprising: a heat-welded outer surface of the container main body, and a tape material covering the whole of the adhesive tape material and the opening.   The packaging container according to claim 1 or 2, wherein a grip portion that is gripped at the start of opening is formed by a part of the peripheral edge of the tape material not being thermally welded to the container body.   The packaging container according to claim 3, wherein a part of the handle portion is thermally welded to the container body.

Images