JP3404903B2 - Packaging container - Google Patents

Description

Detailed Description of the Invention

[0001]

INDUSTRIAL APPLICABILITY The present invention can be used as a packaging for selling products such as 3.5-inch micro floppy disks, and can be used as a case for the user to store the products after the sale. It relates to a packaging container.

[0002]

2. Description of the Related Art As a packaging container for packaging and selling a 3.5-inch micro floppy disk (hereinafter referred to as MFD), the one shown in FIG. 10 is known.

The packaging container 101 includes a container body 103 accommodating an MFD 102, a part of a lid 104, and an adhesive 1
It is put on the market in a state where it is adhered with 05 and the container body 103 is sealed.

Then, the user who purchased the MFD 102 stored in the packaging container 101 needs the adhesive 105
The lid 104 adhered to the container body 103 is peeled off from the container body 103 and opened.

The packaging container 101 has a MFD1 after opening.
It is used as a case to store 02.

[0006]

By the way, in the conventional packaging container 101, since the lid 104 is bonded to the container body 103 with the adhesive 105, the container body 103 is covered with the lid 1.
In some cases, it was difficult to peel off or peel off 04.

In order to facilitate the peeling of the lid 104,
As shown in FIGS. 11 to 16, the container body 103 or the lid 104 has a half-cut portion 10 surrounding the adhesive 105.
A packaging container 101 has been developed in which 6 is provided and the so-called paper delamination is caused in the half cut 106 so that opening can be easily performed.

However, the packaging container 1 which is provided with the half-cut portion 106 to facilitate the separation of the paper layers and facilitates the opening of the packaging container 1 has a property that the container body 103 and the lid 104 are provided.
There is a problem that the material is limited to paper or the like that causes paper delamination, and cannot be applied to the packaging container 101 in which the container body 103 and the lid 104 are formed of a synthetic resin sheet or the like that does not cause paper delamination.

The present invention solves the above-mentioned problems of the prior art, and even when the container body 103 or the lid 104 is made of a material such as a synthetic resin sheet that does not cause delamination of paper layers, the container body 103 is not removed from the lid 104. The purpose of the present invention is to provide a packaging container that can be easily peeled and opened.

[0010]

According to the invention of claim 1, a part of the lid is adhered to the container body with an adhesive to seal the container body, and the lid adhered with the adhesive is attached to the container body. In a packaging container that is peeled off from the container body and opened, the container body or / and the lid is peeled off from the container body or / and the lid in a state of being adhered to the adhesive at the time of opening. A layer is provided , and the release layer is re-adhesive
It is made of a material that does not have
The surface opposite to the surface to which the adhesive is applied.
Areas other than the area corresponding to the rear are connected via the coupling strengthening part
To the container body and / or the lid .

According to a second aspect of the present invention, in the packaging container according to the first aspect, the bond strengthening portion is provided on the surface of the container body and / or the lid.
It was formed by modifying the surface to facilitate adhesion .

According to a third aspect of the present invention, in the packaging container according to the second aspect, the bonding strengthening portion is provided on the surface of the container body or / and the lid.
Was formed by providing an undercoat layer .

[0013]

[0014]

[0015]

In the packaging container according to claims 1, 2 and 3, the package is opened.
Sometimes, due to the bond strengthening part of the release layer,
The part where the connection with the lid is strengthened remains on the container or lid side.
The other part (non-bonding strengthening part) is attached to the adhesive.
Is peeled off. The surface of the adhesive is re-bonded after opening
Covered with a release layer made of a non-functional material
Therefore, re-adhesion after opening is prevented.

[0016]

[0017]

[0018]

EXAMPLES Next, the packaging container of the present invention will be described with reference to FIGS.

1 and 2 are perspective views of the packaging container of the first embodiment.

The packaging container 1 is provided with a container body 2 accommodating the MFD 102 and a lid 4 for opening and closing the opening 3 of the container body 2.

The container body 2 and the lid 4 are made of a synthetic resin sheet.

The packaging container 1 has an MFD 1 in the container body 2.
After storing 02, the lid 4 is adhered to both sides of the opening 3 of the container body 2 with adhesives 5 and 5 to seal the opening 3 for sale, and the user who purchases this
The lid 4 adhered by the adhesives 5 and 5 is peeled off from the container body 2 and opened.

A hot melt adhesive is used as the adhesive 5.

The adhesive 5 is applied on the peeling layer 6 provided on the surface of the container body 2.

The peeling layer 6 is for easily peeling the adhesive 5 from the container body 2 at the time of opening the container, and is adhered to the adhesive 5 at the time of opening the container body 2.
It is supposed to be peeled from.

The peeling layer 6 is formed of a non-readhesive material that does not adhere to the container body 2 again after being peeled off from the container body 2 together with the adhesive 5.

The release layer 6 is made of urethane resin 20-2.
Based on a thermoplastic resin in which 5% by weight of vinyl chloride resin is mixed with 3% by weight, 10 to 50% by weight of calcium carbonate is added in order to reduce the breaking strength of the coating film to a lower level than that of the adhesive 5. A mixture of 1 to 5% by weight of a polyethylene wax and 1 to 5% by weight of dimethyl silicon as a slip agent, ethyl acetate, toluene, butyl acetate,
It is formed by applying a paint (ink) obtained by dissolving with a mixed solvent such as MEK to the surface of the container body 2 to a predetermined thickness by a method such as silk printing.

The packaging container 1 of the first embodiment is constructed as described above.

Therefore, the peeling layer 6 is formed on the surface of the container body 2, the adhesive (hot melt adhesive) 5 is applied thereon, and the lid 4 is put on the adhesive 5 and heated. if,
As the adhesive 5 is melted, the lid 4 is adhered to the container body 2 and the container body 2 is sealed as shown in FIG.

Further, when the lid 4 is pulled at the time of opening, as shown in FIG. 4, the peeling layer 6 having a lower breaking strength than the adhesive 5 is broken and the lid 4 is opened, or as shown in FIG. As described above, the peeling layer 6 itself having a weaker adhesive strength than the adhesive 4 is peeled off from the container body 2 and the lid 4 is opened.

6 to 7 show a second embodiment of the present invention.

In this embodiment, the release layer 6 has a surface 6b opposite to the surface 6a to which the adhesive 5 is adhered and an area other than the area 6d corresponding to the area 6c to which the adhesive 5 is adhered. It is coupled to the container body 2 via the coupling strengthening portion 7.

[0033] The coupling reinforcement portion 7, by applying a corona or frame on the surface of the container body 2 (Tuesday flame) process or the like,
It is formed by making the surface of the container body 2 an easily adhesive surface.

Therefore, when the coating material is applied to the container body 2 to form the peeling layer 6, the bond strengthening portion 7 and the peeling layer 6 on the easy-adhesion surface are compared with the non-bonding strengthening portion, that is, the area 6d. Further, the bonding strength with the container body 2 is improved.

Therefore, at the time of opening, the portion of the bond strengthening portion 7 of the peeling layer 6 is not peeled from the container body 2, but the non-bond strengthening portion is broken and peeled.

Since the other structure is the same as that of the first embodiment, duplicated description will be omitted.

8 to 9 show a third embodiment of the present invention.

In this embodiment, the bond strengthening portion 7 has a bond strength (adhesive strength) with the release layer 6 on the surface of the container body 2.
Is formed by providing an undercoat layer (adhesion strengthening layer) made of a synthetic resin for improving the above.

Since the other structure is the same as that of the first and second embodiments, duplicate description will be omitted.

In the embodiment shown in the drawings, the container body 2
Although the case where the release layer 6 is provided on the cover 4 is shown,
It may be provided on the container body 2 or on both the container body 2 and the lid 4.

Further, the peeling layer 6 is not limited to that of the embodiment, and the point is that the peeling layer 6 has weaker adhesive strength and breaking strength than the adhesive 4 and easily breaks when opened, or the container body 2 or the lid. Four
Any material that does not peel off the bond with and is not adhered to the container body 2 or the lid 4 again may be used.

[0042]

The packaging container according to claims 1 to 3 of the present invention has the following effects.

[0043] (1) Since through the release layer to bond the adhesive to the container body and / or lid and the container body and the lid by the peeling layer is peeled, it is possible to easily open.

(2) Since the peeling layer is formed of a material having no re-adhesive property, once it is opened, it will not be re-adhered as it is. Therefore, once it is opened and then re-adhered, it is handled like unopened. It is possible to prevent this from occurring and to secure so-called initiality.

(3) The release layer and the surface to which the adhesive is adhered
On the opposite surface, and in the area where the adhesive is glued
The area other than the corresponding area is
Since it is connected to the main body and / or the lid, the above-mentioned connection is strengthened.
Depending on the part, the release layer may not come off from the container body or lid except when opening.
Prevents easy peeling if necessary. And when opening
In, the non-bonding strengthening part other than the above-mentioned bonding strengthening part is easy,
Reliably and beautifully breaks and peels off.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment.

FIG. 2 is a perspective view of a sealed state of the first embodiment.

3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a sectional view of the opened state.

FIG. 5 is a sectional view of the opened state.

FIG. 6 is a sectional view of an essential part of the second embodiment.

FIG. 7 is a sectional view of the opened state.

FIG. 8 is a sectional view of an essential part of the third embodiment.

FIG. 9 is a sectional view of the opened state.

FIG. 10 is a conventional perspective view.

FIG. 11 is a perspective view of a conventional example.

FIG. 12 is a plan view of a half cut portion of a conventional example.

13 is a cross-sectional view taken along the line AA of FIG.

FIG. 14 is a sectional view showing a state in which the lid is sealed.

FIG. 15 is a cross-sectional view showing a state in which paper layer separation has started.

FIG. 16 is a sectional view of the opened state.

[Explanation of symbols]

1 ... Packing container 2 ... container body 3 ... Opening 5 ... Adhesive 6 ... Release layer 7 ... Coupling strengthening part

Claims (3)

(57) [Claims] 1. A container lid is partly adhered to the container body with an adhesive to seal the container body, and the lid adhered with the adhesive is peeled from the container body to open the container body. in the packaging container, the container body and / or lid, when opened, in a state of being adhered to the adhesive has a release layer is peeled from the container body and / or lid, the release layer, again It is made of a non-adhesive material and is on the side opposite to the side to which the adhesive is attached, and
Areas other than the area corresponding to the area where the adhesive is bonded
Is connected to the container body and / or the lid via the bond strengthening portion.
A packaging container characterized by being 2. The bond strengthening portion according to claim 1, wherein the surface of the container body and / or the lid is an easily adhesive surface.
A packaging container, which is formed by reforming into. 3. The bond strengthening part according to claim 1 or 2, wherein an undercoat is formed on the surface of the container body and / or the lid.
-A packaging container formed by providing a coat layer .