JP6311975B2 - Package - Google Patents

Description

  The present invention relates to a package that can accommodate a wet tissue and the like and can be taken out from an opening and can be resealed after being taken out.

  Conventionally, for example, a packaging body that contains a cleaning tissue such as alcohol or a wet tissue in which a fiber material is impregnated with a lotion, and that is re-sealed after taking out the wet tissue, etc., is consumed repeatedly while preventing drying. (For example, refer to Patent Document 1). As shown in FIG. 8, the package 100 described in Patent Document 1 is formed of a flexible sheet having airtightness and liquid-tightness, and includes an encapsulating bag 101 in which a wet tissue is enclosed. The enclosing bag 101 has a take-out port 102 for taking out the wet tissue and an open / close label 103 covering the take-out port 102. The take-out port 102 is formed by cutting along a cutting notch 106 formed in the enclosing bag 101.

  The wet tissue can be repeatedly taken out from the enclosing bag little by little without being consumed at once, and can be used. The open / close label 103 can be resealed any number of times. The open / close label 103 is formed separately from the enclosing bag 101 and is attached to the enclosing bag 101 with a pressure-sensitive adhesive so as to cover the take-out port 102. The open / close label 103 is provided with, for example, a semicircular knob 104 at both ends. Further, a notch 105 is provided on the inner side of the knob 104 in the opening / closing label 103 over the entire width of the opening / closing label 103.

  Accordingly, by picking the knob 104 at one end of the open / close label 103 and opening the open / close label 103 to the notch 105 at the other end, the take-out port 102 is exposed, so that the wet tissue can be taken out. In addition, after the wet tissue is taken out, the wet tissue can be prevented from being dried by being resealed so as to cover the take-out opening 102 with the opening / closing label 103. By repeating this, the wet tissue can be taken out and used any number of times.

Japanese Patent No. 3182114 (FIG. 1)

In the conventional packaging body 100 as described above, when the opening / closing label 103 is opened and then resealed, the opening / closing label 103 and the packaging body 100 are wrinkled, making it difficult to seal. Label 103 is preferred. However, when the opening / closing label 103 having high rigidity is used, the repulsive force when opened is strong, and the opening / closing label 103 tends to return more easily. For this reason, as described above, the cut line 105 is provided near the base of the open / close label 103. However, this method has a problem in that it is not effective unless the open / close label 103 is opened to the cut line 105. .
Further, a pressure-sensitive adhesive is applied to the back surface of the opening / closing label 103, but this pressure-sensitive adhesive aggregates beyond the cut line 105, and the effect of the cut line 105 may not be obtained. there were.

  The present invention has been made to solve the conventional problems, and when opening an opening / closing label, the packaging body can be easily opened beyond the cut line, and the opened opening / closing label can be prevented from returning and closing. The purpose is to provide.

  The packaging body of the present invention is a packaging body including a packaging bag having an opening and an opening / closing label that covers the opening so as to be openable / closable, and the opening / closing label has at least a surface resin layer and a back surface in a sectional view. The resin layer and the pressure-sensitive adhesive layer have a structure laminated in this order, and in a plan view, the knob provided on one end side in the longitudinal direction, the main body portion, and the packaging bag on the other end side in the longitudinal direction. A base portion to be fixed, the back resin layer has a first cut line extending therethrough, and the pressure-sensitive adhesive layer has a gap with the first cut line interposed therebetween. .

  In the package of the present invention, the distance from the end of the gap on the opening side to the end of the opening on the gap side in the main body is 5 mm or more and less than 15 mm.

In the package of the present invention, the gap is arranged such that the first cut line is located at a substantially central position, and has a width of 3 mm or more and less than 10 mm.

  Moreover, the package of this invention sets the distance from the edge part by the side of the said base part of the said gap | interval to the edge part of the said opening / closing label to 5 mm or more and less than 20 mm.

  Moreover, in the package of this invention, the said back surface resin layer has the 2nd cut line which penetrates it in the boundary of the said main-body part and the said knob | pick part.

  In the package of the present invention, the opening / closing label further includes at least one intermediate resin layer between the front surface resin layer and the back surface resin layer.

  In the package of the present invention, the surface resin layer is formed from a polypropylene resin having a thickness of 15 μm to 30 μm.

  In the package of the present invention, the intermediate resin layer and the back resin layer have a total thickness of 80 μm or more and 300 μm or less.

  Furthermore, in the package of the present invention, at least one of the intermediate resin layers is formed from a polyethylene terephthalate resin having a thickness of 40 μm or more.

  In this invention, while providing the 1st score line which penetrates a back surface resin layer, the clearance gap was provided in the pressure sensitive adhesive layer on both sides of the 1st score line. For this reason, while being able to open an opening-and-closing label to a 1st cut line easily, the package which has the effect that it can prevent that an opening-and-closing label returns and closes can be provided.

It is a perspective view of the package of a 1st embodiment concerning the present invention. (A) is a top view of the package of 1st Embodiment which concerns on this invention, (B) is sectional drawing of the BB position in (A). (A) is a top view at the time of providing a reinforcement label in an inner surface in the package of 1st Embodiment which concerns on this invention, (B) is sectional drawing of the BB position in (A). (A) is a top view of the opening / closing label of the packaging body of 1st Embodiment, (B) is sectional drawing of the BB position in (A). (A) is a top view of the opening / closing label of the package of 2nd Embodiment which concerns on this invention, (B) is sectional drawing of the BB position in (A). It is a top view which shows the modification which provided the outer frame integrally in the opening-and-closing label. (A) is a plan view when a stopper is provided on the opening / closing label, and (B) is a plan view when an outer frame portion is provided on the opening / closing label and a stopper is provided on the outer frame portion. It is a perspective view of the conventional package.

(First embodiment)
Hereinafter, the packaging body of 1st Embodiment which concerns on this invention is demonstrated using drawing. As shown in FIG.1 and FIG.2, 10 A of package bodies of 1st Embodiment which concern on this invention have the packaging bag 20 which accommodates the wet tissue 11 grade | etc.,. The packaging bag 20 is formed in a flat cylindrical shape from a sheet having liquid tightness, air tightness, and the like, and is tightly joined (joined portion 21) at both ends in the longitudinal direction. In addition, a gusset portion 202 is provided on the side surface of the packaging bag 20 so as to cope with a change in the thickness of the packaging bag 20.

  The upper surface 201 of the packaging bag 20 is provided with an opening 22 for taking out the wet tissue 11 accommodated therein. The opening 22 can be provided by cutting out the upper surface 201 of the packaging bag 20 from the beginning, but a cut 221 that can be easily cut out may be provided in the upper surface 201. When the cut 221 is provided, the opening 22 is formed by being cut when the opening / closing label 30A described later is first opened.

  The shape of the opening 22 is not particularly limited. Here, a narrow oval opening 22 is provided. A reinforcing label 23 for reinforcing the upper surface 201 of the packaging bag 20 and the periphery of the opening 22 can also be provided. The reinforcing label 23 is provided with an opening 231 corresponding to the opening 22 of the upper surface 201 of the packaging bag 20. The reinforcing label 23 is preferably formed of PET (Polyethylene terephthalate) resin having a thickness of 60 μm or more and 150 μm or less. Thereby, when opening and closing the opening / closing label 30 </ b> A, wrinkles can be prevented from occurring around the opening 22 in the upper surface 201 of the packaging bag 20. In addition, the reinforcement label 23 can also be provided in the lower surface (inner surface) 203 of the packaging bag 20 (refer FIG. 3 (A) and FIG. 3 (B)).

  On the upper surface 201 of the packaging bag 20, a substantially rectangular or substantially elliptical opening / closing label 30 </ b> A covering the opening 22 is provided so as to be opened and closed. As shown in FIGS. 2A and 4A, the opening / closing label 30A includes a main body 31 that covers the opening 22, a knob 32 provided on one end in the longitudinal direction, and a longitudinal direction in plan view. And a base portion 33 that supports the opening / closing label 30A during opening and closing.

  As shown in FIG. 4B, the opening / closing label 30A is formed by laminating a front surface resin layer 35 and a back surface resin layer 37 in a sectional view. Between the front surface resin layer 35 and the back surface resin layer 37, at least one intermediate resin layer 36 (here, the case of one layer is illustrated) is provided. Further, an adhesive layer 38 is provided between the layers, and a pressure-sensitive adhesive layer 381 that can be repeatedly bonded to the upper surface 201 of the packaging bag 20 is provided on the inner surface of the back surface resin layer 37. .

  A first cut line 34 is provided in the vicinity of the boundary between the main body 31 and the base 33 in the opening / closing label 30 </ b> A. The first score line 34 penetrates at least the back surface resin layer 37. Here, the first cut line 34 is provided so as to penetrate other than the surface resin layer 35. Note that the pressure-sensitive adhesive layer 381 is not applied to the inner surface of the knob 32 in the back surface resin layer 37. For this reason, since the knob | pick part 32 is not adhere | attached on the upper surface 201 of the packaging bag 20, it can lift easily.

  The surface resin layer 35 is desirably formed of a polypropylene resin having a thickness of 15 μm or more and 30 μm or less. Furthermore, it is more desirable that the thickness is 20 μm. When the thickness is less than 15 μm, breakage tends to occur at a position corresponding to the first cut line 34 that is a connecting portion during repeated opening and closing. On the other hand, if the thickness is greater than 30 μm, the repulsive force of the surface resin layer 35 is increased, and the opening / closing label 30A may be returned by the repulsive force when the knob 32 is released at the time of opening.

  The total thickness of the intermediate resin layer 36 and the back resin layer 37 is preferably 80 μm or more and 300 μm or less. Furthermore, it is more desirable that it is 150 μm or more and 250 μm or less. When the total thickness is less than 80 μm, the rigidity of the entire opening / closing label 30A is low, and it is easy to bend and difficult to open and close. On the other hand, if the thickness is 300 μm or more, the thickness becomes more than necessary, resulting in wasted material. It is desirable that at least one of the intermediate resin layers 36 is formed of a PET resin having a thickness of 40 μm. Furthermore, in the case of 80 μm or more and 150 μm or less, more suitable rigidity can be ensured. The intermediate resin layer 36 desirably has higher rigidity than the back surface resin layer 37. This is because when the back surface resin layer 37 has higher rigidity than the intermediate resin layer 36, delamination (delamination) is likely to occur between the layers.

The pressure-sensitive adhesive layer 381 is provided with a gap 382 to which no pressure-sensitive adhesive is applied, with the first cut line 34 interposed therebetween. As shown in FIG. 4A, in the main body 31, the distance L1 from the end 383 on the opening side of the gap 382 to the end 222 on the gap side of the opening 22 is set to 5 mm or more and less than 15 mm. Yes. Further, the gap 382 is arranged so that the first cut line 34 is positioned at the substantially center position, and the width L2 is set to be 3 mm or more and less than 10 mm. Further, the distance L3 from the end 384 on the base side of the gap 382 to the end 301 of the opening / closing label 30A is set to 5 mm or more and less than 20 mm.

  The operational effects of the package 10A of the present invention described above will be described. The packaging body 10 </ b> A has a packaging bag 20 that stores tissue and the like, and takes out the tissue and the like from an opening 22 provided in the packaging bag 20. The opening 22 is covered with an open / close label 30A so that it can be repeatedly opened and closed. The open / close label 30A has a structure in which at least the front surface resin layer 35, the back surface resin layer 37, and the pressure-sensitive adhesive layer 381 are laminated in this order in a cross-sectional view, and a knob provided on one end side in the longitudinal direction in a plan view. It has the base part 33 fixed to the packaging bag 20 at the part 32, the main-body part 31, and the other end side of a longitudinal direction. Then, a first cut line 34 penetrating the back surface resin layer 37 was provided, and a gap 382 was provided in the pressure-sensitive adhesive layer 381 with the first cut line 34 interposed therebetween.

  Therefore, the open / close label 30A is easily bent at the first cut line 34 and the gap 382 by opening the open / close label 30A and removing the main body 31 of the open / close label 30A. Thereby, since the opening part 22 is exposed, the wet tissue 11 can be taken out. In addition, when the opening / closing label 30A is opened, the first cut line 34 and the gap 382 are bent by the weight of the opening / closing label 30A, so that the open state can be maintained. For this reason, the opening / closing label 30A can be easily opened to the first cut line 34, and the opening / closing label 30A can be prevented from returning and closing.

  In the package 10A of the present invention, the distance L1 from the opening side end 383 of the gap 382 of the pressure-sensitive adhesive layer 381 to the end 222 on the gap side of the opening 22 in the main body 31 is 5 mm or more and less than 15 mm. did. By setting the distance L1 to 5 mm or more, conduction between the opening 22 and the gap 382 can be prevented and liquid tightness can be ensured.

Further, in the package 10A of the present invention, the gap 382 of the pressure-sensitive adhesive layer 381 is disposed so that the first cut line 34 is located at the substantially center position , and the width L2 is set to 3 mm or more and less than 10 mm. If the width L2 of the gap 382 is 3 mm or more, the opening / closing label 30A can be easily opened and closed at the first cut line 34, and can be prevented from returning and closing due to the rigidity of the opening / closing label 30A. Further, the width L2 of the gap 382 is not required to be 10 mm or more, and material is wasted.

  In the package 10A of the present invention, the distance L3 from the base portion side end 384 of the gap 382 to the end portion 301 of the opening / closing label 30A is set to 5 mm or more and less than 20 mm. If it is 5 mm or more, when the opening / closing label 30A is opened, the entire opening / closing label 30A can be prevented from peeling off. Moreover, if it is 20 mm, the opening / closing label 30 </ b> A can be sufficiently held, and no more is required.

  In the package 10A of the present invention, the opening / closing label 30A has at least one intermediate resin layer 36 between the front surface resin layer 35 and the back surface resin layer 37, so that the rigidity of the opening / closing label 30A can be increased. it can.

  Moreover, in the package 10A of the present invention, the surface resin layer 35 was formed from a polypropylene resin having a thickness of 15 μm or more and 30 μm or less. If the surface resin layer 35 is thicker than 30 μm, the repulsive force at the root portion is increased, and the opening / closing label 30 </ b> A is easily closed when the hand is released from the knob 32, making it difficult to take out the wet tissue 11. Furthermore, if it is thinner than 15 μm, the repulsive force at the root portion is small, and it is easy to break during repeated opening and closing.

  Further, in the package 10A of the present invention, the total thickness of the intermediate resin layer 36 and the back surface resin layer 37 is set to be 80 μm or more and 300 μm or less. Thereby, the rigidity of the entire opening / closing label 30A can be sufficiently secured, and it is possible to prevent the opening / closing label 30A from being swung. Moreover, waste of the material due to being too thick can be prevented.

  Furthermore, in the package 10A of the present invention, at least one intermediate resin layer 36 is formed from a polyethylene terephthalate resin having a thickness of 40 μm or more. Thereby, the opening / closing label 30A can ensure a suitable rigidity.

(Second Embodiment)
Next, the packaging body of 2nd Embodiment which concerns on this invention is demonstrated. In addition, suppose that the same code | symbol is attached | subjected to the site | part common to 10 A of package bodies which concern on 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted. As shown in FIG. 5, in the package 10B of the second embodiment, a second cut line 39 penetrating the back surface resin layer 37 is provided at the boundary between the main body portion 31 and the knob portion 32 in the back surface resin layer 37 of the opening / closing label 30B. Provided. The second cut line 39 does not penetrate the intermediate resin layer 36 and the surface resin layer 35. Accordingly, since the second cut line 39 is not provided in the surface resin layer 35, the surface resin layer 35 is continuous and maintains a certain rigidity.

  The operational effects of the package 10B of the present invention described above will be described. In the package 10 </ b> B of the present invention, the second cut line 39 that penetrates the back surface resin layer 37 is provided at the boundary between the main body portion 31 and the knob portion 32 in the back surface resin layer 37. Thereby, since the knob | pick part 32 is easy to bend | fold at the 2nd cut line 39, when opening the opening / closing label 30B, it becomes easy to pinch the knob | pick part 32. FIG. If the second cut line 39 penetrates to the intermediate resin layer 36, it is easy to cause breakage or delamination between the surface resin layer 35 and the intermediate resin layer 36 when opening the opening / closing label 30B. The intermediate resin layer 36 is not penetrated.

  The package of the present invention is not limited to the above-described embodiments, and appropriate modifications and improvements can be made. For example, as shown in FIG. 6, when the opening / closing labels 30A, 30B are opened, the outer frame portion 40 remaining in the packaging bodies 10A, 10B can be provided integrally with the opening / closing labels 30A, 30B. That is, the outer frame portion 40 is a remaining portion obtained by cutting out the main body portion 31 and the knob portion 32 of the open / close labels 30A and 30B, and the base portion 33 is also the outer frame portion 40. Thereby, at the time of opening and closing of the opening and closing labels 30A and 30B, wrinkles are hardly generated on the upper surface 201 of the packaging bag 20, and the opening and closing labels 30A and 30B can be opened and closed smoothly.

  Moreover, since the back surface resin layer 37 can be easily bent at the first cut line 34 and the gap 382, the open / close labels 30A and 30B can be easily opened.

  Further, as shown in FIG. 7, a curved stopper can be formed in the vicinity of the first cut line 34. FIG. 7A shows a case where the stopper 41A is provided in the above-described opening / closing labels 30A and 30B, and a curved cut 42A is provided in the main body 31 continuously to the first cut line 34. FIG. FIG. 7B shows a case where the stopper 41B is provided when the outer frame portion 40 is provided (see FIG. 6), and a curved cut 42B is provided in the outer frame portion 40 continuously to the first cut line 34. . Accordingly, even when the open / close labels 30A and 30B are opened with force, the folding can be reliably folded along the first cut line 34.

(Example)
The following examples further illustrate the present invention. In addition, this invention is not limited to description of a following example, unless the summary is exceeded.

Table 1 shows specific numerical values and evaluations in Reference Example 1, Example 2, Reference Example 3 and Reference Example 4 .

(Evaluation of liquid tightness)
The liquid tightness was evaluated based on the following evaluation criteria.
A: When stored in a constant temperature bath at 40 ° C. for 4 weeks, no label floating or conduction was observed around the outlet.
○: When stored in a constant temperature bath at 40 ° C. for 4 weeks, some label floating was observed around the outlet, but no conduction was observed.
X: When stored in a constant temperature bath at 40 ° C. for 4 weeks, conduction from around the take-out port was observed.

(Evaluation of the difficulty of returning the open / close label and the reliability of the score line function)
The evaluation of the difficulty of returning the opening / closing label and the reliability of the score line function was performed based on the following evaluation criteria.
A: When the opening / closing label was opened 10 times by 20 men and women, the opening / closing label did not return in all cases.
○: When the opening / closing label was opened 10 times by 20 men and women, the opening / closing label did not return freely at a rate of 95% or more and less than 100%.
X: When the opening / closing label was opened 10 times by 20 men and women, the opening / closing label returned to its own due to repulsion at a rate exceeding 5%.

(Stopper performance)
The stopper performance was evaluated based on the following evaluation criteria.
A: When the opening / closing labels were opened 10 times by 20 men and women, the opening / closing labels were not peeled off in all cases.
○: When the opening / closing labels were opened 10 times by 20 men and women, all the opening / closing labels were not peeled off at a rate of 99% to less than 100%.
X: When the opening / closing label was opened 10 times by 20 men and women, all the opening / closing labels were peeled off at a rate exceeding 1%.

(productivity)
Evaluation of productivity was performed based on the following evaluation criteria.
A: In the opening / closing label pasting process at the normal operating speed, the same level of productivity as the conventional opening / closing label was ensured from the viewpoint of distortion of the opening / closing label and instability of the pasting position.
○: In the process of affixing the open / close label at the normal operating speed, the productivity is slightly inferior to that of the conventional open / close label in terms of distortion of the open / close label and instability of the sticking position, but within a commercially acceptable range. there were.
×: In the process of applying the open / close label at the normal operating speed, the defect occurrence rate was clearly higher and the productivity was inferior compared to the conventional open / close label in terms of distortion of the open / close label and instability of the attaching position. .

In Reference Example 1, a polypropylene resin having a thickness of 20 μm is used for the front surface resin layer 35, a polyethylene terephthalate resin having a thickness of 125 μm is used for the intermediate resin layer 36, and a polypropylene resin having a thickness of 80 μm is used for the back surface resin layer 37. Formed a first cut line 34, and an opening / closing label 30A was prepared so that L1 = 7 mm, L2 = 5 mm, and L3 = 7 mm to obtain a package 10A. As shown in Table 1, in Example 1, the liquid tightness was good, the opening / closing label 30A was very difficult to return, the stopper performance was good, and the productivity was good.

In Example 2, the same material as that in Reference Example 1 was used, and an opening / closing label 30A was produced so that L1 = 12 mm, L2 = 8 mm, and L3 = 18 mm, thereby obtaining a package 10A. As shown in Table 1, Example 2 was extremely good in all of liquid-tightness, difficulty in returning the opening / closing label 30A, stopper performance, and productivity.

On the other hand, in Reference Example 3 , the same material as in Reference Example 1 is used, and L1 = 4 mm, L2 = 5 mm, L3 = 4 mm, and an opening / closing label 30A is produced and packaged so that L1 and L3 are outside the specified value range. A body 10A was obtained. As shown in Table 1, in Reference Example 3 , the difficulty of returning the opening / closing label 30A and the productivity were extremely good, but problems occurred in the stopper performance and the liquid tightness.

In Reference Example 4 , the same material as in Reference Example 1 is used, L1 = 10 mm, L2 = 2 mm, L3 = 15 mm, and an opening / closing label 30A is prepared so that L2 is outside the range of the specified value. Got. As shown in Table 1, in Reference Example 4 , there was no problem in liquid tightness, difficulty in returning the opening / closing label 30A, and stopper performance, but problems occurred in productivity.

  As mentioned above, although this invention was demonstrated using embodiment, it cannot be overemphasized that the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiment. Further, it is apparent from the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

10A, 10B Package 20 Packaging bag 22 Opening portion 222 Opening end 30A, 30B Opening / closing label 31 Main body portion 32 Knob portion 33 Base portion 34 First cut line 35 Surface resin layer 36 Intermediate resin layer 37 Back surface resin layer 381 Pressure adhesive layer 382 Gap 383 Open side end 39 Second cut line

Claims (3)

A packaging bag having an opening;
An opening / closing label that covers the opening so as to be openable and closable,
The opening / closing label has a structure in which at least a front surface resin layer, a back surface resin layer, and a pressure sensitive adhesive layer are laminated in this order in a cross-sectional view,
In plan view, a knob portion provided on one end side in the longitudinal direction, a main body portion, and a base portion fixed to the packaging bag on the other end side in the longitudinal direction are formed,
The back resin layer has a first score line extending therethrough;
In the pressure-sensitive adhesive layer across the first score line, it has a gap,
In the main body, the distance from the opening side end of the gap to the gap side end of the opening is 10 mm or more and less than 15 mm,
The gap is arranged such that the first cut line is located at a substantially central position, and has a width of 5 mm or more and less than 10 mm,
A packaging body, wherein a distance from an end of the gap on the base side to an end of the opening / closing label is 15 mm or more and less than 20 mm . The open / close label further includes at least one intermediate resin layer between the front surface resin layer and the back surface resin layer,
The surface resin layer is formed from a polypropylene resin having a thickness of 15 μm or more and 30 μm or less,
The intermediate resin layer and the back resin layer have a total thickness of 80 μm or more and 300 μm or less,
The package according to claim 1, wherein at least one layer of the intermediate resin layer is formed of a polyethylene terephthalate resin having a thickness of 40 µm or more. Furthermore, the said back surface resin layer has the 2nd cut line which penetrates it in the boundary of the said main-body part and the said knob part, The package body of Claim 1 or 2 characterized by the above-mentioned.