JP2005145496A - Blister container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blister container capable of not only storing an article before opening under a hermetically-sealed condition but also storing the article successively used after opening under a hermetically-sealed and hygienical condition. <P>SOLUTION: This blister container 1 is constituted in such a way that a storing part for the article is formed by bonding an upper blister 21 and a lower blister 22 together with respective opposite faces, and the article is stored in the storing part. The bonding of the upper blister 21 and the lower blister 22 is released when the blister container 1 is opened. It is thereby possible to use a double-sided adhesive sheet with adhesive layers on both faces, a mechanical fastener or the like for a bonding means for the blisters each other, and to use a fitting style of a recessed part and a projected part as a fitting means for the blisters each other. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a blister container, and more particularly to a blister container suitable for re-containment of articles.

Conventionally, a blister container in which a blister made of a transparent resin is bonded to a mount is known. In this type of blister container, when the article is taken out, the mount is peeled off from the blister, or the mount is broken along the perforation formed on the mount. Therefore, the blister container is a container for storing articles after opening. As a function loses.
Therefore, a blister container 100 having a configuration as shown in FIG. 5 has been proposed in order to re-store the articles even after opening. A blister container 100 of this type includes a blister dome 101 with a flange, a mount 102 having an opening, and a back mount 104 having a perforated lid 104b having a tongue piece 104a (Patent Document 1). reference).

  In this blister container 100, the blister dome 101 is passed through the mount 102 in a state where it is exposed from the opening of the mount 102, and the mount 102 is bonded to the back mount 104, so that the blister 101 and the back mount 104 are interposed between them. The article P is stored in the formed space portion. And the lid 104b formed by the perforation along the shape of the opening on the backing paper 104 (however, since there is a part without the perforation, the lid can be easily separated from the backing paper even if the perforation is broken. When the article P is stored in the blister dome 101 again, the article P is put into the blister dome 101 passed through the mount 102, After the mount 102 and the back mount 104 are aligned, the tongue piece 104a formed on a part of the lid 104b is bent and inserted into a slit (insertion hole) formed on a part of the blister dome 101. .

On the other hand, as shown in FIG. 6, an openable / blistered blister container 105 that does not use a mount or adhesive is also known. In this type of blister container 105, an article such as food is contained, and an upper blister 106 having an article storage portion 107 and a lower blister 108 covering the same are integrated by folding one end edge 109 thereof. ing. In such a blister container 105, the upper and lower blisters are coupled by means of a concave-convex fitting portion 110 provided at the opposing portion of the upper blister 106 and the lower blister 108.
Japanese Patent Laid-Open No. 2001-213475

  By the way, articles such as toothbrushes and dental floss in a blister container are usually used continuously after being taken out of the blister container, or used over a period of time without being used up at a time. Is. It is desired that articles continuously used in this way be stored hygienically in the blister container not only before opening the blister container but also after opening.

However, in the mount-type blister container 100 as shown in FIG. 5 (prior art 1) and the conventional fitting-type blister container 105 shown in FIG. 6, both before and after opening the blister container. However, the article cannot be stored in a sealed state. In particular, the former may lose its function as a storage container when the mounts 102 and 104 are wet with water or the like.
Even if, in the above-mentioned fitting type blister container 105, instead of the fitting part, the lower blister is sealed all around by thermocompression bonding, it can be sealed before opening the blister container. Sometimes the seal portion breaks and the blister container cannot be used as a container for re-containing articles after opening.

  Accordingly, an object of the present invention is to provide a blister container that can not only store articles in a sealed or substantially sealed state before opening, but can also hygienize articles that are continuously used even after opening. .

  The present invention is a blister container having a first blister and a second blister, and between the first blister and the second blister, a joining means for joining their facing surfaces is interposed, And the said objective is achieved by providing the said 1st, 2nd blister and the blister container provided with the engaging means which engages this blister.

The “joining means” of the present invention means a means for securing the opposing surfaces of the upper and lower blisters over a certain range, releasing the connection with a normal force, and enabling the connection again. To do. For example, applying an adhesive to the facing portion, interposing a double-sided adhesive tape on the facing portion, placing a mechanical fastener on the facing portion, and the like correspond to this. The main purpose of the joining means is to bring them into close contact or substantially close contact over the entire circumference or substantially the entire circumference of the opposing surfaces of the upper and lower blisters. Double-sided adhesive tape can be used when the airtightness of the blister container is important. However, if you want to make the airtightness a little sweeter (for example, a toothbrush wet with water after use has become slightly airtight) For example, when it is desired to promote the drying of the toothbrush by storing in a blister container, a mechanical fastener can be preferably used.
As is apparent from the above description, the “adhesive” is not intended to be an agent that bonds the upper and lower blisters so tightly that they cannot be separated with a normal force. Moreover, when the upper and lower blisters are pulled apart, an agent that causes so-called dripping or sticking and pulling the thread is not intended.

  The “engagement means” of the present invention means a means that partially holds the opposing surfaces of the upper and lower blisters, releases the connection with a normal force, and can perform connection again. For example, one blister is provided with a recess, the other is provided with a protrusion and the recess and the protrusion are fitted, and both blisters are provided with a plurality of fine protrusions, and the protrusion and protrusion of one blister are provided. Inserting the convex part of the other blister between the parts, providing mechanical fasteners to both blisters (as mentioned above, mechanical fasteners can also be used as joining means), and entwining the fasteners. Applicable. The main purpose of the engaging means is to prevent the blister container from being inadvertently opened by securing the upper and lower blisters.

  When a double-sided adhesive sheet is used as the joining means, one adhesive layer of the double-sided adhesive sheet adheres to either the first blister or the second blister, and the other adhesive layer does not adhere to one adhesive layer. Although it adheres to the blister, it is better that there is a difference between these two adhesive forces. Providing a difference ensures that the double-sided adhesive tape remains in either the first blister or the second blister when opening the blister container. That is, it remains in the blister with the stronger adhesion. If the adhesive strengths are the same, it is possible that the blister container is opened with some parts of the double-sided adhesive tape attached to the first blister and the other parts attached to the second blister.

  The blister container of the present invention may have a structure in which the first blister and the second blister are integrally connected at the respective end edges or may not be integrally connected. The fact that they are integrally connected means that the first blister and the second blister cannot be separated by normal force. For example, they are integrally molded or separately molded and heat-sealed. This is the case when the status is set.

  According to the blister container of the present invention, not only can the article be stored in a sealed state before opening, but also the article can be stored in a state close to the sealed state before opening after opening, especially for continuous use. Can be stored hygienically.

Hereinafter, the most preferred embodiment of the blister container of the present invention will be described in detail.
As shown in FIGS. 1 and 2, the blister container 1 of the present embodiment has an upper blister (first blister) 21 and a lower blister (second blister) 22 bonded to a double-sided adhesive sheet 3 interposed therebetween. The layers are in close contact with each other, and are engaged by fitting of a concave portion 21b and a convex portion 22b formed in each blister. Articles are stored in a space formed by combining the upper and lower blisters. When the blister container is opened, the fitting is released and one of the upper and lower blisters is separated from the adhesive layer.
Hereinafter, such a blister container will be described in detail. In the present embodiment, “upper” and “lower” indicate the position of the blister container 1 in FIG. 1 for convenience. Similarly, the position of the blister container 1 may be indicated by “left” and “right”.

As shown in FIG. 1 or FIG. 2, the upper blisters 21 and 22 are components of the blister container of the present invention, and are made of transparent resin. A space (storage portion 2c) for storing articles is formed in a portion excluding.
The upper and lower blisters 21 and 22 are integrally connected at their left end edge portions (the upper and lower blisters are integrally formed) and bent (connecting portion 2d) so as to open and close using the connecting portion 2d as a rotation axis. It has become.

  The upper blister 21 has a quadrangular columnar shape (three-dimensional protrusion) in which a portion excluding the outer peripheral portion bulges, the portion is an upper storage portion 21c, and the outer peripheral portion is an upper joint portion 21a. Yes. Similarly to the upper blister 21, the lower blister 22 includes a lower storage portion 22c and a lower joint portion 22a. The volume of the lower storage portion 22c and the upper storage portion 21c of the blister container depends on the size and shape of the article to be stored. It can be set accordingly.

On the outer peripheral portions of the upper and lower blisters 21 and 22, an uneven fitting portion 2 b for engaging these blisters is formed. The concave / convex fitting portion 2 b includes a cylindrical concave portion 21 b formed in the upper blister 21 and a cylindrical convex portion 22 b formed in the lower blister 22.
From the viewpoint of opening and closing the upper and lower blisters 21, 22, the concave / convex fitting portion 2 b is formed on each outer peripheral portion on the side facing the connecting portion 2 d.

As shown in FIG. 2 or FIG. 3, the double-sided adhesive sheet 3 is interposed between the joint surfaces 21a and 22a of the upper and lower blisters 21 and 22, respectively. The double-sided adhesive sheet 3 includes a base sheet 31, a first adhesive layer 32 formed on the upper surface of the base sheet 31, and a second adhesive layer 33 formed on the lower surface of the base sheet 31.
The base material sheet 31 is not particularly limited as long as it is a sheet-like material. However, if importance is attached to prevention of pulp dust generation and water resistance of the blister container, the base material sheet 31 has excellent moisture resistance. A resin film can be used.

The first and second adhesive layers 32 and 33 are respectively composed of first and second adhesives, and the thickness of these layers is preferably 50 to 500 μm.
Examples of the adhesive used for the adhesive layer include low melting point resins such as polyethylene and polyethylene terephthalate, glue, oily and aquatic varnish, acrylic adhesive, rubber adhesive, silicone adhesive, vinyl ether adhesive, A urethane-based adhesive or the like can be used without particular limitation, and an agent capable of obtaining desired adhesiveness with the upper and lower blisters may be selected.

  In the present embodiment, the adhesive strength between the first adhesive layer 32 and the upper blister is set smaller than the adhesive strength between the second adhesive layer 33 and the lower blister. This ensures that the double-sided adhesive tape remains on the lower blister side when the blister container 1 is opened and closed. Thus, from the viewpoint of providing a difference in adhesive strength, it is preferable to interpose a double-sided adhesive tape between the upper and lower blisters as an adhesive means.

  In order to make a difference between the adhesive strengths of the first adhesive layer and the second adhesive layer, for example, selection of an adhesive (when the upper and lower blisters are polyethylene terephthalate (PET), the first and second adhesive layers are As an adhesive to be configured, an adhesive having a higher adhesive strength than PET and an adhesive having a lower adhesive strength are selected), a difference in the application area and application thickness of the adhesive is used, and the same adhesive is used. For example, there is a difference in the contact area between the first adhesive layer and the upper blister and the contact area between the second adhesive layer and the lower blister.

  The double-sided adhesive sheet 3 is disposed over the entire peripheral area excluding the concave / convex fitting portion 2b in the joint portion 2a from the viewpoint of improving the airtightness of the blister container 1.

Next, the usage mode etc. of the blister container 1 of this embodiment are demonstrated.
Although the article accommodated in the blister container 1 is not particularly limited, the blister container of the present invention is used for articles continuously used after opening, such as a toothbrush and dental floss, because of the above-described configuration. The advantage is more demonstrated.
Before opening the blister container 1, the upper and lower blisters 21 and 22 are engaged by the concave / convex fitting portions 2 b, and the respective joint surfaces 21 a and 22 a are in close contact via the double-sided adhesive sheet 3. Contains items.

When the blister container 1 is opened, the upper blister 21 and the lower blister 22 are separated. In this case, since the adhesive strength between the first adhesive layer 32 and the upper blister 21 of the double-sided adhesive sheet 3 is smaller than the adhesive strength between the second adhesive layer 33 and the lower blister, the double-sided adhesive sheet 3 is opened when the blister container 1 is opened. Remain on the lower blister side, surely. That is, there is no fear that the blister container 1 is opened with a part of the double-sided adhesive sheet 3 remaining on the lower blister side and a part adhering to the upper blister side.
Thereafter, when the article is stored again in the blister container 1, the article is stored in the lower accommodating portion 22 c of the lower blister 22 and the upper blister 21 is closed. In this case, the bonding surface 21a of the upper blister 21 adheres to the first adhesive layer 32 of the double-sided adhesive sheet 3, and the upper and lower blisters 21 and 22 are engaged by the concavo-convex fitting portion 2b. The article is stored in a substantially initial sealed state.

  As described above, according to the present embodiment, the double-sided adhesive sheet is provided with the concave / convex fitting portions 2b in the joint portions 2a of the upper and lower blisters 21 and 22 and has an adhesive layer on both surfaces between the joint portions. Since 3 is interposed, not only can the articles be stored in a sealed state before opening the blister container 1, but also the articles can be stored in a substantially initial sealed state after opening.

  In addition, according to the present embodiment, the adhesive strength between the first adhesive layer 32 and the upper blister 21 of the double-sided adhesive sheet 3 is set to be smaller than the adhesive strength between the second adhesive layer 33 and the lower blister 22. When the blisters 21 and 22 are separated and the blister container 1 is opened, the double-sided adhesive sheet 3 can be reliably left in the lower blister 22.

Furthermore, in this embodiment, if the base material sheet 31 of the double-sided adhesive sheet 3 is not a paper quality but a resin film, pulp dust is not generated, and a blister container with better water resistance is obtained. Further, if the base sheet 31 is made a recyclable film, the amount of dust from the blister container 1 can be reduced, and if the base sheet 3 is made a biodegradable film, it becomes a more environmentally friendly blister container.

The present invention is not limited to the above-described embodiment, and various changes can be made.
For example, as shown in FIG. 4, the lower accommodating part 22c may be formed only in the lower blister 22, and the upper blister 21 may function as an upper lid. Although not shown, the upper accommodating part is formed only in the upper blister. The lower blister may function as a lower lid.

What is necessary is just to form the said uneven | corrugated fitting part in the both-ends edge part (for example, left edge part and right edge part) at least of a 1st and 2nd blister. Moreover, you may form a recessed part and a convex part in any 1st and 2nd blister. Of course, if a concave portion is formed in one blister, a convex portion is formed in the other.
In the blister container of the present invention, it is preferable that a double-sided adhesive sheet is interposed between the entire peripheral portions of the opposing surfaces of the first and second blisters excluding the above-mentioned concave-convex fitting part from the viewpoint of improving the sealing property of the blister container.

  From the viewpoint of making the engagement state of the upper and lower blisters better, the above-mentioned concave and convex fitting portion is the first and first in which the connecting portion exists in the blister container in which the upper and lower blisters are integrally connected. It is preferably formed on a surface other than the opposing surface of the two blisters.

  Further, each article may be sorted and stored by dividing the inside of the article storage section of the blister container according to the size and shape of the article.

It is a perspective view which shows schematic structure of the blister container of this embodiment. It is side sectional drawing which shows the blister container of this embodiment along the cutting line AA of FIG. It is a figure which expands and shows the junction part of the blister container of FIG. It is side sectional drawing which shows the modification of the blister container of this embodiment. It is a perspective view which shows schematic structure of the conventional blister container (mounting board type). It is a perspective view which shows schematic structure of the conventional blister container (fitting type).

Explanation of symbols

2b Concavity and convexity fitting part 2d Connecting part 21 Upper blister (first blister)
21a Joint 21b Recess 22 Lower blister (second blister)
22a Joint part 22b Convex part 3 Double-sided adhesive sheet

Claims (5)

A blister container having a first blister and a second blister,
Between the first blister and the second blister, there is a joining means for joining the opposing surfaces, and an engaging means for engaging the blisters with the first and second blisters. Blister container provided with.   The blister container according to claim 1, wherein the joining means is a double-sided adhesive sheet.   The blister container according to claim 1 or 2, wherein the engaging means is formed by fitting a concave portion and a convex portion.   The adhesive strength between the first adhesive layer formed on one surface of the double-sided adhesive sheet and the first blister or the second blister, the second adhesive layer formed on the other surface of the double-sided adhesive sheet, and the first blister The blister container according to any one of claims 1 to 3, wherein there is a difference in adhesive strength with a blister that is not in contact with the first adhesive layer among the second blisters. The said 1st blister and the said 2nd blister are integrally connected by each edge part, The said engaging means is provided in the edge part facing this edge part. The blister container according to any one of the above.

Images