JP2012218766A - Sealing label, and packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sealing label which hardly causes wrinkles or the like at an opening of a packaging container even when opening/closing are repeated.SOLUTION: The closing label 31 that is repeatedly releasably joined to a removal port 51 of a packaging bag 50 to seal the removal port includes a sealing unit 10 for sealing the removal port and a support unit connected with at least a part of the sealing unit and bonded to the packaging bag, and further includes a sheet-like or film-form reinforcing substrate 4 bonded to the surface of the sealing unit on the removal port side. When exposing the removal port by releasing the sealing unit, at least a part of the reinforcing substrate remains around the removal port.

Description

  The present invention relates to a hermetic label, and more particularly to a hermetic label that is releasably bonded to the surface of a packaging container and seals the packaging container, and a packaging container that includes the hermetic label.

  Conventionally, a wet tissue in which a non-woven fabric or tissue paper is impregnated with a chemical or the like is widely known. In the case of carrying, such a wet tissue is generally distributed and used by being stored in a packaging bag formed of a soft film or the like and having an opening serving as a take-out port.

  In such a wet tissue, in order to maintain the wettability of the wet tissue contained in the packaging bag until use and to prevent foreign matter from entering the packaging bag, the opening label can be repeatedly peeled off. Is often attached. In this case, when the wet tissue is taken out, the sealing label is peeled to expose the opening, and after taking out, the sealing label is adhered again to seal the opening (see, for example, Patent Document 1).

Japanese Patent No. 3512211

  However, the packaging container described in Patent Document 1 has a problem that wrinkles and the like are generated around the opening as the opening and closing lid is repeatedly opened and closed, making it difficult to take out the contents and detracting from aesthetics.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a hermetic label in which wrinkles and the like are unlikely to occur in the opening of a packaging container even when opening and closing is repeated.
Another object of the present invention is to provide a packaging container in which wrinkles and the like are unlikely to occur even when continuously opened and closed.

  A first aspect of the present invention is a sealing label that is releasably joined to an opening of a packaging container to seal the opening, and is connected to a sealing part that seals the opening and at least a part of the sealing part And a support part joined to the packaging container, further comprising a sheet-like or film-like reinforcing base joined to the opening-side surface of the sealing part, peeling the sealing part and opening the opening When the is exposed, at least a part of the reinforcing base material remains around the opening.

A second aspect of the present invention is a packaging container having an opening and containing contents therein, wherein the hermetic label of the present invention is joined so as to cover the opening.

According to the hermetic label of the present invention, it is possible to obtain a hermetic label in which wrinkles and the like are unlikely to occur in the opening of the packaging container even when opening and closing is repeated.
Moreover, according to the packaging container of this invention, it can be set as a packaging container which is hard to produce a wrinkle etc. in opening even if it opens and closes continuously.

It is a perspective view which shows the packaging bag with which the airtight label of one Embodiment of this invention was attached. It is sectional drawing in the BB line of FIG. It is a perspective view of the state where the packaging bag was opened. It is sectional drawing in the B1-B1 line | wire of FIG.

An embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a perspective view showing a packaging bag 50 to which a sealing label 31 of this embodiment is attached. The packaging bag (packaging container) 50 to which the hermetic label 31 is attached is formed in a predetermined shape and accommodates the contents. For example, a polyethylene terephthalate (PET) film, an aluminum foil, so-called sealant from the surface (outside) It is formed from the well-known laminated | multilayer film in which the heat-sealable film etc. which are called were laminated | stacked in order, and were joined. The laminated film may be one in which aluminum, silica, or alumina is vapor-deposited on a PET film, and a heat-sealable film is laminated on the inner surface.

The packaging bag 50 contains the contents 100 inside with the heat-sealable film inside (see FIG. 3). In the present embodiment, a wet tissue 60 in which a non-woven fabric or tissue paper is impregnated with a chemical solution or the like is stored as the content 100.
The laminated film forming the packaging bag 50 does not permeate water and oxygen and is excellent in airtightness. Therefore, the wet tissue 60 can be prevented from being dried and stored in a wet state until use. The specific shape of the packaging bag 50 and the layer configuration of the laminated film constituting the packaging bag 50 may be changed as appropriate according to the characteristics of the contents 100 and the like.
One of the surfaces of the packaging bag 50 is formed with an outlet (opening) 51 from which the wet tissue 60 is taken out during use. Although the shape of the take-out port 51 can be set as appropriate, in the present embodiment, the shape is an ellipse.

The sealing label 31 is attached to the packaging bag 50 so as to be repeatedly peelable, and covers the take-out port 51 so that the wet tissue 60 is not exposed in a state where the sealing label 31 is joined to the packaging bag 50.
2 is a cross-sectional view taken along line BB in FIG. As shown in FIG. 2, the hermetic label 1 is a sheet-like or film-like first base material 2 having an adhesive layer 2A formed on one surface, and a sheet having an adhesive layer 3A formed on one surface. The film-like or film-like second base material 3 is laminated. The first base material 2 is laminated by forming the pressure-sensitive adhesive layer 2 </ b> A on the surface of the second base material 3 opposite to the pressure-sensitive adhesive layer 3 </ b> A. The pressure-sensitive adhesive layer 3 </ b> A of the second base material 3 is a known detachable pressure-sensitive adhesive layer, and the pressure-sensitive adhesive layer 3 </ b> A is joined to the packaging bag 50 so that the sealing label 31 covers the take-out port 51. It is joined. The adhesive strength of the adhesive layer 2A is set larger than the adhesive strength of the adhesive layer 3A.
As materials for the first base material 2 and the second base material 3, PET, biaxially stretched polypropylene (OPP), a blend of these, synthetic paper, or the like can be suitably used.

As shown in FIG. 1, the sealing label 31 includes a sealing portion 10 that seals the take-out port 51, and a support portion 20 that is connected to the sealing portion 10.
The sealing portion 10 is formed such that, in plan view, the first end portion 10A in the longitudinal direction is pointed, the dimension in the width direction increases once toward the second end portion 10B, and then decreases. It is formed in a pentagon shape. The sealing part 10 can expose the take-out port 51 of the packaging bag 50 by having the first end part 10A or its vicinity peeled off in the longitudinal direction (peeling direction).
The shape of the sealing portion 10 is not limited to that of the present embodiment, and in consideration of design and the like, the side extending in the peeling direction in a part of the periphery is made parallel, or a part of the periphery is curved. It can be changed as appropriate.

  The support portion 20 is connected to the second end portion 10B of the sealing portion 10. Also, a pair of cuts 21 extending on the extension line of the width direction end of the second end portion 10B is formed, and when the sealing portion 10 is peeled off, the peeling force does not easily act on the support portion 20. . The distance between the pair of cuts 21 becomes longer as approaching the first end portion 10A.

As shown in FIG. 2, a cut line 22 that cuts only the second base material 3 is formed at a boundary portion between the sealing portion 10 and the support portion 20. The cut line 22 extends between the pair of cuts 21 so as to be orthogonal to (including substantially orthogonal to) the peeling direction, and the second base 3 is separated from the peeling direction proximal region 3a and the peeling direction distal region. It is separated into 3b.
The peeling layer 23 is provided between the first base material 2 and the second base material 3 in a part of the peeling direction distal side region 3b in contact with the cut line 22, and the first base material 2 And the second base material 3 are easily peeled off. The release layer 23 can be formed by, for example, applying a known release varnish to the second substrate 3 or performing a known paste-killing process on the pressure-sensitive adhesive layer 2A.

A sheet-shaped or film-shaped reinforcing base material 4 that completely covers the take-out port 51 is attached to the sealing portion 10.
The reinforcing base 4 is formed in an oval shape that is slightly larger than the take-out port 51, and has an adhesive layer 4A on one surface as shown in FIG. In the reinforced base material 4, the surface on which the pressure-sensitive adhesive layer 4 </ b> A is not provided is subjected to easy peeling treatment with a peeling varnish or the like, and is integrated with the pressure-sensitive adhesive layer 3 </ b> A of the second base material 3. As the material of the reinforcing base 4, the same material as the first base 2 and the second base 3 can be used. The pressure-sensitive adhesive strength of the pressure-sensitive adhesive layer 4 </ b> A that has been subjected to easy peeling treatment with a peeling varnish or the like is set to be equal to or lower than that of the pressure-sensitive adhesive layer 3 </ b> A and can be repeatedly peeled and bonded to the packaging bag 50.

The hermetic label 31 is provided with a second cut line 32 that is slightly larger than the outlet 51 and that cuts only the reinforcing substrate 4.
Further, on the surface of the pressure-sensitive adhesive layer 4A to be joined to the packaging bag 50 and in the peripheral portion of the region surrounded by the second cut line 32, a paste-killing process (not shown) by a net-like or dot-printing of a paste-killing agent is performed. Is given. The density of the net-like or dot-like printing is determined by the set peel strength, and may be 30 to 50%, for example. The area to be subjected to the paste killing process may be an oval ring having a line width D1 shown in FIG. In addition, the line width D1 should just be set so that the area | region located between the 2nd cut line 32 and the cut C (after-mentioned) may be included at least in planar view of the packaging bag 50. FIG.

When the packaging bag 50 is manufactured, the sealing label 31 is positioned and pasted on the laminated film F in advance, and as shown in FIG. A take-out port 51 is formed by inserting a cut C having a shape. The depth of the cut C is preferably set such that the laminated film F is reliably cut and the second base material 3 is not cut.
Thereafter, the laminated film F and another laminated film not attached with the sealing label 31 are joined, and the contents are accommodated and sealed, whereby the packaging bag 50 is completed.

The operation | movement at the time of use of the packaging bag 50 formed as mentioned above is demonstrated.
When the user holds the first end portion 10 </ b> A of the sealing portion 10 and pulls it in the peeling direction, the sealing portion 10 is peeled off from the packaging bag 50. At this time, the region surrounded by the cut C (hereinafter referred to as “opening formation region F1”) of the laminated film F is adhered to the adhesive layer 4A of the reinforcing base 4 and is shown in FIG. As described above, the take-out port 51 is exposed apart from the other region of the laminated film F together with the sealing portion 10.

  When the sealing portion 10 is further peeled and reaches the cut line 22, the first base material 2 is peeled from the second base material 3 by the peeling layer 23 thereafter as shown in FIG. 4. For this reason, the peeling direction distal side region 3 b of the second base material 3 remains adhered to the packaging bag 50 and does not follow the sealed portion 10. Therefore, since the site | part which connects the sealing part 10 and the connection part 20 is comprised only by the 1st base material 2 containing 2 A of adhesion layers, rigidity is low and takes out even if a user removes a hand from the sealing part 10. The exposed state of the mouth 51 is maintained.

Moreover, when the sealing part 10 is peeled for the first time, as shown in FIGS. 3 and 4, the region inside the second cut line 32 of the reinforcing base material 4 is peeled off from the packaging bag 50. At this time, the opening forming region F1 moves together with the sealing portion 10 while being adhered to the reinforcing base material 4, and the take-out port 51 is opened.
On the other hand, a region outside the second cut line 32 (hereinafter referred to as “reinforcing region 4 a”) of the reinforcing base 4 is stronger than the second base 3 by the easy peeling process with respect to the packaging bag 50. Since it is adhered, it does not follow the movement of the sealing part 10 due to peeling and remains around the take-out port 51. The reinforcing region 4a functions as a reinforcing layer that reinforces the periphery of the take-out port 51, and it is suitably suppressed that wrinkles or tears occur around the take-out port 51.

The user can perform a desired operation by taking out the wet tissue 60 from the take-out port 51 while keeping the packaging bag 50 at hand. Even when the second and third wet tissues are taken out, the exposed state of the take-out port 51 is maintained, so that it is not necessary to peel off the sealed portion again, and the operation can be performed smoothly.
After the use of the wet tissue 60, when the sealing portion 10 is joined again to the packaging bag 50 and the take-out port 51 is sealed, the wet tissue 60 in the packaging bag 50 is prevented from being dried and foreign matter in the packaging bag 50 is prevented. Intrusion is also prevented.

  According to the sealing label 31 of the present embodiment, since the reinforcing substrate 4 is provided, the reinforcing region 4 a formed of a part of the reinforcing substrate 4 remains around the take-out port 51 when opened. Therefore, damage around the take-out port 51 can be prevented, and the beauty can be maintained.

  In addition, since a predetermined area of the pressure-sensitive adhesive layer 4A is subjected to a net-like or dot-like paste-killing process, a part having a relatively high adhesive strength and a part having a low adhesive strength are distributed in the area as a net or dot. is doing. For this reason, the chemical | medical solution etc. which were impregnated in the wet tissue 60 are hard to spread to the said area | region compared with the case where the paste-killing process is performed with respect to the whole area | region. As a result, problems such as the opening forming region F1 being peeled off from the reinforcing base material 4 and the reinforcing region being peeled off from the packaging bag 50 can be suitably prevented.

  Furthermore, the sealing label 31 is closed so that the reinforcing base 4 and the opening forming region F1 protruding with a step on the surface of the sealing portion 10 are fitted inside the reinforcing region 4a. Airtightness after opening is kept high.

  Moreover, since the cut line 22 which separates the 2nd base material 2 is provided in the boundary part of the sealing part 10 and the support part 20, and also the peeling layer 23 is formed in the peeling direction distal side area | region 3b, it sealed When the part 10 is peeled off, the connection part between the sealing part 10 and the support part 20 becomes thin, and the rigidity becomes lower than that of the laminated sealing label 1 itself.

  Therefore, even if the user releases the support of the sealing portion, the sealing portion does not return to the position before peeling, and the state where the take-out port 51 is exposed is preferably maintained. As a result, when the take-out port 51 of the packaging bag 50 is used for the purpose of being able to be opened and closed, the exposed state of the take-out port 51 can be suitably maintained and the contents can be easily taken out.

Moreover, in the conventional sealing label, if the sealing portion is pulled too strongly at the time of peeling, the support portion may be peeled off from the packaging bag. On the other hand, in the sealing label 31, when the sealing portion 10 is peeled until the peeling layer 23 is exposed, the force that pulls the sealing portion 10 thereafter sticks the first base material 2 and the second base material 3 exclusively. It acts on the agent layer 2A and hardly acts on the adhesive layer 3A in the peeling direction distal side region 3b.
Therefore, the force pulling the sealing part 10 does not act so as to peel the support part 20 from the packaging bag 50. In addition, since the adhesive strength of the adhesive layer 2A is larger than the adhesive strength of the adhesive layer 3A, the first substrate peels from the second substrate in the region without the release layer 23 in the distal direction region 3b in the release direction. It is hard to happen. Thereby, the situation where the sealing label 31 whole will be peeled from the packaging bag 50 at the time of peeling of the sealing part 10 can be prevented suitably.

  In the present embodiment, the example in which the opening forming region F1 which is a part of the laminated film F is adhered to the sealing portion 10 and the take-out port 51 is exposed has been described, but instead, the opening forming region F1 is removed in advance. In addition, a known paste-killing process may be performed on the adhesive layer in the region covering the outlet in the sealed portion.

  Although one embodiment of the present invention has been described above, the technical scope of the present invention is not limited to the above embodiment, and various modifications may be made to each component without departing from the spirit of the present invention. , Can be deleted.

For example, in the sealed label of the present invention, a cut line and a release layer are not essential. Therefore, the sealing label may be configured without including these configurations.
Further, in the sealed portion, the adhesive layer near the first end portion may be paste-killed so that the user can easily pinch when performing the peeling operation.

Moreover, the content accommodated in a packaging bag is not specifically limited, It replaces with sanitary goods like the wet tissue mentioned above, and other articles | goods, such as foodstuffs and miscellaneous goods, may be accommodated.
Furthermore, the hermetic label of the present invention is applicable to packaging containers other than packaging bags. For example, it may be used by being attached to a resin container or the like having higher rigidity than the packaging bag.

31 Sealing label 4 Reinforcing substrate 10 Sealing part 20 Supporting part 50 Packaging bag (packaging container)
51 Exit (opening)
100 contents

Claims (2)

A sealing label that is releasably joined to the opening of the packaging container and seals the opening,
A sealing portion for sealing the opening;
A support part connected to at least a part of the sealed part and joined to the packaging container;
With
It further comprises a sheet-like or film-like reinforcing base joined to the opening-side surface of the sealing part,
When the sealing part is peeled and the opening is exposed, at least a part of the reinforcing base material remains around the opening. A packaging container having an opening and containing contents therein,
A sealed container according to claim 1, wherein the sealed label is joined so as to cover the opening.

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