JP5326698B2 - Paper tab tape - Google Patents

Description

  The present invention relates to a paper tab tape for sealing an opening of a paper container, and relates to a novel steion tab that remains in a container even after opening and does not dissipate.

  In recent years, paper containers made of paper, which is a reproducible resource, have attracted attention due to the growing awareness of environmental protection. As a tab tape for sealing an opening of a paper container, a tab tape made of a material combined with a plastic film, an aluminum foil, or the like has been conventionally used (see Patent Document 1, paragraph 0013). However, a problem that the tab tape after opening dissipates and becomes dust is generated, and in order to prevent this problem, there is an increasing demand for a so-called steion tab that remains in the container after opening. However, as long as the container body is made of paper, it is needless to say that the tab tape that remains in the container body and is discarded together with the container body is also preferably made of paper.

  An example of a paper steon tab is a strip-shaped tab tape that reaches the trunk member beyond the edge of the top plate of the paper container, and is continuous with the mouthpiece seal that seals the opening of the container body. A paper tab tape provided with a tab tape fixing portion has been proposed by our company (see Patent Document 2). This paper tab tape has a portion protruding from the top plate as a knob portion, and an adhesive layer is formed on the inner surface of the knob portion. The opened tab tape is held by the tab tape fixing portion and does not dissipate. In addition, after opening, the adhesive tape provided on the tab portion of the tab tape is temporarily attached to the top plate of the container so that the tab tape does not get in the way when the contents are consumed.

Japanese Patent Laid-Open No. 10-129699 JP 2005-178830 A

  The paper tab tape described in Patent Document 2 uses the adhesive action of the adhesive layer as a fixing method of the tab tape at the time of drinking, but when the outer surface of the container cooled in the refrigerator has condensed or conversely It has been found that there is a problem that, when warmed, the function of the pressure-sensitive adhesive is not sufficiently exhibited and the tab tape may not be fixed properly. In addition, it is not advantageous in terms of cost to apply a partial adhesive processing to the inner surface of the tab tape because the process is complicated.

  The problem to be solved by the present invention is to propose a paper steion tab tape that can reliably hold the opened tab tape even when the paper container is cooled or warmed, and that is easy to open. To do.

As means for solving the above-mentioned problems, the invention according to claim 1 is a paper tab tape that is attached to the surface of the top plate to seal the opening formed in the top plate of the paper container. And a notch that can be inserted by folding back the knob after opening, and an opening seal that seals the opening and a temporary seal. A concave emboss is provided between the notch and the end opposite to the knob portion, and after the opening seal is opened, it remains on the top plate by a temporary seal. This is a paper tab tape.

  Since the paper tab tape according to the present invention has a knob portion that protrudes beyond the edge of the top plate, it can be easily opened using this knob portion as a clue when opening. In addition, after opening, the knob portion is folded so that it can be inserted, so that the opened tab tape can be folded back and inserted into this cut so that it can be reliably fixed regardless of the temperature of the contents in the container. . In addition, the tab tape does not get in the way when the mouth is directly put into the opening to drink the contents. In addition, the tab tape is in close contact with the top plate by an opening seal and a temporary seal that seal the opening. After opening the opening seal, the tab tape remains on the top plate by the temporary seal, so the tab tape is dissipated. There is no such thing as garbage. Further, since the tab tape is made of paper, it can be recycled or discarded as paper together with the paper container of the container body.

  In addition, when a concave emboss is provided between the opposite end of the tab portion of the paper tab tape and the notch, the concave embossed side of the notch is raised because the back surface of the concave emboss is convex. Therefore, it becomes easy to insert the knob portion into the cut. Further, since the inserted knob portion is pressed by the convex portion on the back surface of the concave emboss, it is surely locked.

FIG. 1 is a schematic plan view showing a paper container using an embodiment of a paper tab tape according to the present invention. FIG. 2 is a perspective view showing the entire paper container shown in FIG. FIG. 3 is a schematic cross-sectional view showing an unopened state of the paper container shown in FIG. 4 is a schematic cross-sectional view showing a state after the paper container shown in FIG. 1 is opened. FIG. 5 is a schematic cross-sectional view showing an example of a layer structure of a paper tab tape according to the present invention.

The paper tab tape according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic plan view showing a paper container using an embodiment of a paper tab tape according to the present invention. The paper tab tape 5 according to the present invention is a paper tab tape that is attached to the surface of the top plate 3 in order to seal the opening 4 formed in the top plate 3 of the paper container 1. It has a knob portion 6 that protrudes beyond the edge portion, and a notch 7 that can be inserted by folding back the knob portion 6. ing. In the embodiment shown in FIG. 1, a concave emboss 10 is provided between an end of the paper tab tape 5 opposite to the knob portion 6 and the cut 7.

  When the paper container 1 is opened, the knob portion 6 protrudes outward from the edge portion of the top plate 3, so that it can be easily opened with the knob portion 6. After the opening seal 8 is opened, the paper tab tape 5 remains attached to the top plate 3 by the temporary seal 9, so that the tab tape does not dissipate and become dust.

  FIG. 2 is a perspective view showing the entire paper container shown in FIG. Since the top plate 3 is located at a position lower than the upper end portion of the side plate 2, when the paper tab tape 5 that seals the opening 4 formed on the top plate 3 is peeled off, when the knob portion 6 does not exist. Although the clue is difficult to grasp, since the knob portion 6 protrudes outward from the edge portion of the top plate 3, it can be easily opened using this as a clue.

  FIG. 3 is a schematic cross-sectional view showing an unopened state of the paper container shown in FIG. The top plate 3 having the opening 4 is raised by bending the periphery and formed into a dish shape. The side plate 2 is formed so as to involve the rising portion. Since the heat sealable sealant layer is provided on the inner surface side of the top plate 3 and the side plate 2, the inner surface of the paper container whose ends are heat-sealed is in a sealed state.

  The paper tab tape 5 that seals the opening 4 is in close contact with the top plate 3 by an opening seal 8 and a temporary seal 9 around the opening 4. The paper tab tape 5 is provided with a knob 6 that protrudes beyond the edge of the top plate 3. Further, after opening, a notch 7 that can be inserted by folding the knob portion 6 is provided. In this embodiment, a concave emboss 10 is provided between an end portion of the paper tab tape 5 opposite to the knob portion 6 and the notch 7.

  Since the concave emboss 10 is provided, a protrusion is formed on the back surface of the paper tab tape 5, and the concave emboss 10 side of the cut 7 is raised, so that the knob portion 6 can be easily inserted into the cut 7 after opening. .

  4 is a schematic cross-sectional view showing a state after the paper container shown in FIG. 1 is opened. As shown in this figure, since the tab portion 6 of the opened paper tab tape 5 can be fixed by inserting it into the notch 7, it is possible to drink the contents by directly opening the opening portion 4 However, the paper tab tape 5 does not get in the way. Since the paper tab tape 5 is fixed to the top plate 3 by the temporary fixing seal 9 even after opening, it does not dissipate and become garbage. Further, when the knob portion 6 is inserted into the notch 7, the convex portion on the back surface side of the concave emboss 10 presses the knob portion 6, so that the knob portion 6 is hardly removed.

  As a material structure of the paper tab tape, various layer structures are used according to the contents. FIG. 5 is a schematic cross-sectional view showing an example of a layer structure of a paper tab tape according to the present invention. A printed pattern layer 12 and a surface film layer 11 are provided on the front side of the paper substrate 13, and a barrier layer 14, a back film layer 15, and a peel layer 16 are provided on the back side of the paper substrate 13. . As the surface film layer, a known thermoplastic resin is used, but polyester synthetic resin films such as polyethylene terephthalate (PET) film and polyethylene naphthalate (PEN) film are used in order to prevent moisture absorption to the paper substrate 13. Preferably used. The barrier layer 14 guarantees the gas barrier property of the opening of the paper container, and is formed on a stretched film such as a biaxially stretched PET film, polyamide film, or polyolefin film, such as aluminum oxide or silicon oxide. An inorganic vapor deposition film obtained by depositing a thin film of an inorganic compound, a gas barrier synthetic resin film such as an ethylene vinyl alcohol (EVA) film or a polyvinylidene chloride film, an aluminum foil, or the like is used. The back film layer 15 is used for the purpose of particularly guaranteeing the cold breaking strength of the paper tab tape, and a polyamide resin film, a PET film or the like is preferably used. The peel layer 16 needs to be a material that can be heat-sealed with the synthetic resin layer on the surface of the top plate and peeled with an appropriate peel strength. Specifically, several kinds of polyolefin resins are blended. A low peel strength type unstretched polyolefin resin film or the like can be used. The printed pattern layer 12 is printed by a gravure printing method, a flexographic printing method, an offset printing method, or the like, using a normal packaging material ink.

  As a method for sealing the paper tab tape according to the present invention to the opening of the paper container, first, the paper tab tape is fixed to the opening of the top plate of the paper container with a temporary seal. Next, the contents are injected and filled through the opening of the paper container that has been sterilized. Finally, the paper tab tape is sealed with the opening to complete the sealing.

  As described above, the paper tab tape according to the present invention is a physical means in which the unsealed tab tape remains attached to the top plate of the paper container, and the knob portion is folded back and inserted into the cut. By this, the tip can be fixed, so even if it is a case of drinking with a mouth directly on a paper container, it does not get in the way. Even when the contents are cooled or warmed together with the paper container, the contents can be stably fixed. Therefore, the paper container using the paper tab tape according to the present invention can be used for both cooling and heating.

DESCRIPTION OF SYMBOLS 1 ... Paper container 2 ... Side plate 3 ... Top plate 4 ... Opening part 5 ... Paper tab tape 6 ... Knob part 7 ... Notch 8 ... Opening seal 9 ... Temporary seal 10 ... Concave emboss 11 ... Surface film layer 12 ... Print pattern layer 13 ... Paper substrate 14 ... Barrier layer 15 ... Back film layer 16 ... Peel layer

Claims (1)

A paper tab tape that is attached to the surface of the top plate to seal the opening formed in the top plate of the paper container, and a knob portion that protrudes beyond the edge of the top plate; It has a notch that can be inserted by folding back the knob , and is in close contact with the top plate by an opening seal and a temporary seal that seal the opening, and the end on the opposite side of the knob and the notch A paper tab tape , which is provided with a concave embossing therebetween and remains on the top plate by a temporary seal after opening the opening seal.

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