JP4436703B2 - Sealed package - Google Patents

Description

  The present invention relates to a hermetically sealed package for packaging contents such as wet tissue.

2. Description of the Related Art Conventionally, an enclosing bag configured to accommodate contents such as a wet tissue and be repeatedly resealable is known (for example, Patent Document 1).
In the enclosing bag disclosed in Patent Document 1, the wet tissue is taken out from the opening exposed by turning the lid member formed of an adhesive seal, and the remaining wet tissue is dried by sealing the lid member again. Can be prevented.

Japanese Utility Model Publication No. 59-99974

  However, the sealing bag requires a troublesome work of carefully pressing the adhesive seal so that no gap remains on the wall surface of the bag when sealing again. Moreover, if this sealing is insufficient, there remains a problem that the remaining wet tissue is inadvertently dried.

  On the other hand, the sealing container disclosed in Patent Document 2 has a problem that it is difficult to take out the contents (wet tissue or the like) because it is necessary to take out the contents (wet tissue or the like) through a small opening, while it can be surely sealed. In particular, when it is desired to reduce the size of the container so as to be convenient for carrying or the like, there is a limit to increasing the opening area, and thus such a problem becomes significant.

JP-A-8-217113

  In view of the above-described conventional problems, an object of the present invention is to provide a hermetic package that can be easily and reliably resealed and has a large area for an extraction opening and is easy to handle.

The present invention has been made in order to effectively solve the above problems, and provides a sealed package having the following features.
The sealed package of the present invention is a sheet material including a “seal layer” and a “base material layer having directionality in a specific direction”, and at least one surface thereof is configured. On this one surface, “a cut extending in a direction that crosses a specific direction with a predetermined length and both ends facing the same side substantially parallel to the specific direction” and “opening pasted to cover the cut” adhesive seal piece "and a" frangible region formed in two areas nearby and switching inclusive virtual line and the peripheral seal portion drawn from both ends to a particular direction of cross ", the end of the unsealing adhesive sealing strip The edge is formed at a position away from the easily breakable region, and an opening is formed between the notch and the easily breakable region .

The “specific direction” in the present invention means the direction in a substrate having directionality in a certain direction.
Further, the “easy break region” is a region where the strength of the sheet material is partially weakened, and is configured by providing, for example, a “cut” or an “easy peeling layer” at a specific portion in the sheet material. The

  Further, according to the present invention, there is provided a hermetic packaging mechanism constituted by “a hermetic packaging body in which the opening adhesive seal piece is removed and an opening is formed” and “an outer packaging body that accommodates the hermetic packaging body in a pressure contact state”. Is done. The exterior body of the sealed packaging mechanism includes a movable plate that can take “an open position where the opening of the sealed package is exposed” and “a closed position where the periphery of the opening is covered and pressed against the sealed package”.

In the sealed package of the present invention having the above-described configuration, since one surface of the package has directionality in a specific direction and both ends of the cut are directed in a specific direction, The tear occurs along the specific direction from both ends of the.
Although tearing proceeds along a specific direction, since an easily breakable region is provided at the peripheral seal portion of the package, the one surface is eventually partially broken to form an opening. Is done. Thus, an opening piece can be removed and an opening can be easily provided in a package.
Moreover, since the formed opening extends to the periphery of the package body, the opening area is large, and when taking out the contents (wet tissue or the like), the end can be picked, Removal work is simplified. In particular, when configured as a small portable sealed package, there is an advantage that the opening area can be increased while the package itself is small.

  A sealed wrapping mechanism capable of repeating the opening state and the sealed state with a simple operation simply by accommodating the sealed wrapping body having the opening formed as described above so as to be sandwiched between the outer packaging body in a press-contact state. Composed.

  Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a perspective view showing a sealed package 10 according to an embodiment of the present invention.

<< Structure of sealed package 10 >>
One wall surface 11 of the sealed package 10 is made of a laminated sheet material including a base material layer having directionality in a “specific direction”. In the present invention, the “specific direction” means the direction in the base material having directionality in one direction, and in the illustrated example, the direction along the virtual line 30 in FIG. Is.

  When the sealed package 10 is constituted by a single sheet material, the entire sheet material constituting the package 10 has directionality in the “specific direction”. In order to achieve the object of the invention, it is sufficient that at least the wall surface 11 has directionality.

  The cut 12 extends on the wall surface 11 by a predetermined length across the “specific direction”. Both ends 12a face the same side so as to be substantially parallel to the “specific direction” (see FIG. 1B). The cut 12 is formed through the wall surface 11.

  An opening pressure-sensitive adhesive seal piece 13 is adhered to the wall surface 11 so as to cover the cut 12. When the pressure-sensitive adhesive seal piece 13 for picking up is picked up, the fracture starts from the portion of the notch 12, and the opening 11a can be formed in the sealed package 10 as described later.

  As shown in FIG. 2, when the adhesive seal piece 13 for opening is peeled off in the direction of the arrow, the wall surface 11 starts to be broken from the notch 12 portion. The tearing proceeds along the cut line 15, and finally, as shown in FIG. 3, a part of the wall surface 11 is torn off to form the opening 11 a at the peripheral seal portion 16.

The cut 15 is provided in order to change the tear direction in the vicinity region A of the peripheral seal portion 16 shown in FIG. From such a viewpoint, the cut 15 does not need to be provided over the entire surface of the wall surface 11, and it is sufficient if it exists at least in the vicinity of the region A. That is, a region A in the vicinity where the imaginary line 30 drawn in the “specific direction” from both ends of the notch 12 and the peripheral seal portion 16 intersect is an easily breakable region. In this embodiment, by providing the cut 15 in the sheet material, the strength of the region A is weakened to make it an easily breakable region.
Even in the case where the cut 15 extending over the entire wall surface 11 along the virtual line 30 is not provided, the wall surface 11 includes a base material having directionality in the “specific direction”, and therefore, as shown in FIG. It is possible to tear off. However, from the viewpoint of manufacturing, it is preferable that the cut 15 is formed over the entire wall surface 11 as illustrated. In this case, since the cut 15 serves as a guide, the wall surface 11 can be broken along the “specific direction” more reliably than relying only on the directionality of the base material.

The sheet material constituting the hermetic package 10 includes an aluminum layer as a barrier layer that provides hermeticity. Although a specific laminated structure is not limited to a specific one, as an example, from the outer surface of the package toward the inner side, “uniaxially oriented PET (polyethylene terephthalate) layer, printed layer, anchor coat layer, PE (polyethylene) Layer, aluminum layer (barrier layer), adhesive layer, CPP layer (unstretched polypropylene layer) ”in this order. Here, the uniaxially stretched PET layer constitutes the base material layer.
The notch 12 is formed through the entire laminated structure of the sheet material, but since the opening adhesive seal piece 13 covers the notch 12, the sealing property of the package 10 before opening is maintained.
On the other hand, in order to maintain sealing performance, the cut 15 is configured by intermittently arranging, for example, short cuts formed by cutting only the uniaxially stretched PET layer and the print layer from the outer surface side.

  As can be seen from FIG. 3, the sealed package 10 of the present invention does not have a reseal function by itself because the wall surface 11 is partially broken and opened. As shown in FIGS. 4 to 6, the sealed package 10 in an open state is used by being housed in an exterior body 50. The cut 15 may be a perforation, a straight line, or a scar.

≪Other configurations of easily breakable area≫
In the present invention, a configuration is adopted in which the strength of the sheet material is weakened in the region A to make the region easy to break, and the unsealed pieces can be removed in this region. In the example described above, the easily breakable region is formed by providing the cut 15 in the sheet material, but another example will be described below.

≪Easy rupture region in which an easy release layer is provided between the base material layer and the seal layer≫
In the example of FIG. 7, an easily peelable layer is provided between the base material layer and the seal layer constituting the sheet material in the region indicated by reference numeral 60.
The sheet material that constitutes the wall surface 11 is “uniaxially oriented PET (polyethylene terephthalate) layer, printed layer, weak laminus layer, adhesive layer, aluminum layer (barrier layer), adhesive layer, CPP, from the outer surface toward the inner side. The layers are laminated in the order of “layer (unstretched polypropylene layer)”. Here, the uniaxially stretched PET layer constitutes the base material layer, and the CPP layer constitutes the seal layer.
The weak laminus layer in the laminated structure is a layer obtained by coating a release agent, and this layer constitutes an easy release layer.
As described above, in FIG. 7, the easily peelable layer is provided in an arbitrary intermediate layer of the laminated structure, thereby weakening the strength of the sheet material and configuring the easily breakable region. The position at which the easily peelable layer is laminated in the laminated structure can be appropriately changed.
In addition, it is sufficient that the area whose strength is weakened in this way is at least the area indicated by A, but as shown in FIG. 7, it is configured as one band connecting the two areas A. From the viewpoint of easy tearing of the opening piece and ease of manufacture.

≪Easy rupture area using easy peel layer as seal layer≫
Although not shown, an easy-peeling layer exhibiting easy peel properties may be employed as the innermost sealing layer in the laminated structure (such easy peel itself is generally known). ). In this case, it can be appropriately determined in consideration of various conditions whether the peeling is performed in a cohesive peeling, delamination or interface peeling.

≪Easy rupture area formed by perforation in base material layer by laser processing≫
In the example of FIG. 8, perforations 70 are formed in the outermost base material layer in the laminated structure, thereby weakening the strength of the sheet material and making it an easily breakable region.
Here, it is sufficient that the region where the strength is weakened is at least in the region indicated by A, but as shown in FIG. 8, the two regions A are configured to extend in a straight line. It is also preferable from the viewpoint of easy tearing of the opening piece and easy manufacture. Further, the number of perforations 70 may be one or plural. In the illustrated example, three perforations are formed. Further, as a means for forming the perforation 70, other than using a laser beam, it may be formed by an appropriate method.

  In the present invention, it is sufficient that the strength of the sheet material can be weakened in the region A, and the specific configuration for that purpose is not limited to a specific configuration, and an appropriate configuration other than the configuration described above. Can be adopted.

≪Exterior body≫
In FIG. 4, first, the opening adhesive seal piece 13 is pulled in the direction of the arrow 1 to open it, and then, as shown by the arrow 2, the sealed package 10 is accommodated in the exterior body 50 and the lid 52 is closed ( FIG. 5).

The exterior body 50 is configured by hinge-joining a lower portion 51 that receives the sealed package 10 and a lid portion 52, and is biased in a closing direction by a spring material (not shown). That is, in FIG. 5, the sealed package 10 is sandwiched between the lower portion 51 and the lid portion 52 in a pressure contact state.
The lid 52 includes a door (movable plate) 55. The door 55 is integrated with the lid portion 52 to press-contact the inner sealed package 10, but can be opened as shown in FIG. 6 by operating the operation portion 53. The opening 11a of the sealed package 10 is exposed, and the wet tissue 20 can be picked out.
That is, the door 55 as a movable plate is in the “closed position” in FIG. 5 and in the “open position” in FIG.

  Since the opening 11a extends from the vicinity of the center of the wall surface of the package 10 to the peripheral edge thereof, there is an advantage that when the wet tissue 20 is taken out, the end edge 20a can be picked and taken out easily.

After the wet tissue 20 is taken out, it is only necessary to close the door 55. As a result, the door 55 is pressed against the sealed package 10 so as to cover the opening 11a, so that the sealed state of the package 10 is good. Can be reproduced and maintained.
That is, as in the case of a conventional encapsulating bag, in order to reproduce the sealed state, the troublesome work of pressing the adhesive seal carefully so that no gap remains on the bag wall surface becomes unnecessary.

  In addition, although the structure of the exterior package 50 is schematically shown in the drawings, the entire opening 11a of the sealed package 10 is particularly illustrated with respect to the positioning mechanism of the sealed package 10 to be accommodated and the inner surface shape of the door 55. It is preferable to devise appropriately so that it can be sealed well.

The perspective view which shows the sealed packaging body which concerns on one Embodiment of this invention. The perspective view which shows the opening operation | work of the sealed package body of FIG. The perspective view which shows the state by which the sealed package body was completely opened from the state of FIG. The perspective view explaining the exterior body which accommodates the sealed package body of FIG. 1 in the open state. The perspective view which shows the state which closed the cover part of the exterior body of FIG. The perspective view which shows the state which opened the door of the cover part from the state of FIG. The perspective view which shows the sealed package body which concerns on other embodiment of this invention. The perspective view which shows the sealed packaging body which concerns on other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Sealing packaging body 11 Wall surface 12 Cutting 13 Adhesive seal piece 15 for opening 15 Notch 16 Peripheral seal part 20 Wet tissue 30 Virtual line 50 Exterior body 51 Lower part 52 Cover part 53 Operation part 55 Door (movable plate)
60 Easy breakable area 70 by release layer Perforation

Claims (6)

It is a sealed packaging mechanism configured to remove the adhesive seal piece for opening the following sealed packaging body and accommodate the sealed packaging body in a pressure contact state in the exterior body,
The outer packaging body includes a movable plate capable of taking an open position that exposes an opening of the sealed packaging body and a closed position that covers the periphery of the opening and press-contacts the sealed packaging body. mechanism.

(Sealed packaging body) A sheet material including a sealing layer and a base material layer having directionality in a specific direction, at least one surface of which is configured and sealed with a peripheral seal portion extending in a direction crossing the specific direction A package, on the one side,
An incision extending at a predetermined length in a direction crossing a specific direction and having both ends facing the same side substantially parallel to the specific direction;
An adhesive sticker for opening that is attached to cover the cut,
An easily breakable region formed in two regions in the vicinity of the imaginary line drawn in the specific direction from both ends of the cut and the peripheral seal part,
With
A sealed package body in which an edge of an adhesive seal piece for opening is formed at a position away from an easily breakable region, and an opening is formed between the notch and the easily breakable region.
The hermetic packaging mechanism according to claim 1, wherein the easily breakable region of the hermetic packaging body is configured by providing an easily peelable layer between the base material layer and the sealing layer. 2. The sealed wrapping mechanism according to claim 1, wherein the easily breakable region of the sealed wrapping body is configured by adopting an easily peelable layer as a seal layer. The sealed packaging mechanism according to claim 1, wherein the easy-breakage region of the sealed packaging body is formed by making a cut in a sheet material. The sealed packaging mechanism according to claim 4, wherein the cut extends along a peripheral seal portion. The sealed packaging mechanism according to claim 4, wherein the cut is formed by vertically cutting the entire surface along the virtual line.

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