JPH1017037A - Unsealing mechanism for package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the lid from returning in the direction for covering the opening, when a lid covering the opening in a package is pulled in the direction for opening the opening and after the lid is released from seizure by the hand, so as to keep the opening open. SOLUTION: A lid 4 is fixed at its fixing end 4a to a packaging body 1 and a sealing part 4b is turned over 180 deg. around the position of the fixing end 4a and fixed by gluing in a manner of covering the opening 1a of the package. By turning over the sealing part on a hinged part the strength of the lid 4 can be increased. When the opening 1a is exposed by pulling off the lid 4, the lid 4 turns down on the side opposite to the opening 1a and does not easily return toward the opening 1a. Therefore, in extracting wet tissue, it is not necessary to continue to hold down the lid 4 by hand; the wet tissue can be taken out continuously through the opening 1a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a package in which a wet tissue or the like is stored, and more particularly to an opening mechanism for repeatedly opening and closing a lid covering an opening for taking out contents.

[0002]

2. Description of the Related Art FIGS. 5A and 5B are perspective views showing a conventional package for accommodating a wet tissue in which a sheet-like fiber material is impregnated with a chemical or the like. FIG. (B) shows a state where the lid member is opened. The packaging material constituting the package 1 is, for example, PET (polyethylene terephthalate) from the surface side.
It is a laminate material in which a film, an aluminum foil, and a sealant layer are laminated. The laminate is vertically sealed on the bottom surface side of the package 1 shown in FIG. 5, and has horizontal seal portions 1b and 1b formed at both front and rear ends. A soft seal having a shape is formed, and a plurality of wet tissues 3 are provided inside.
Are piled up and stored.

[0003] On the top surface of the package 1, an oval opening 1 is formed.
A perforation or the like is formed in the packaging material so that a is formed, and the lid material 2 having an adhesive layer is adhered thereon. When the lid material 2 is peeled off, the packaging material in the portion surrounded by the perforations adheres to the lid material 2 side and is pulled together, and the packaging material is cut off at the perforations to form the opening 1a. Is formed.

[0004] In this package 1, the opening 1 is opened once so that the wet tissue as the content is not dried.
After removing the wet tissue from a, opening 1
It is necessary to seal a. Conventionally, the lid member 2 has a structure in which the lid member 2 is completely peeled off from the upper surface of the package body 1.
After taking out the wet tissue 3 from the opening 1a,
Again, it was necessary to attach the lid member 2 to the position of the opening 1a. However, it is not only time-consuming to reposition and adhere the completely peeled lid material 2 to the opening 1a, but also the adhesive layer to be originally adhered around the opening 1a is exposed from the opening 1a. There is a problem such as sticking to the wet tissue 3 that has been made.

Therefore, in the package 1 shown in FIG.
A portion of the lid 2 closer to the base than the notches 2c, 2c is a fixed end 2a, and a portion sandwiched between the notches 2c, 2c functions as a hinge. Then, an adhesive layer is formed on the entire back surface of the lid member 2 and is adhesively fixed to the surface of the package 1. In this package 1, when the knob 2b at the tip of the lid 2 is held by hand and the lid 2 is peeled off and peeled off to the hinge portion sandwiched between the notches 2c, 2c, the package shown in FIG. As shown in ()), the opening 1a of the lid 2 is opened while the fixed end 2a is fixed to the surface of the package 1.

After the wet tissue 3 is taken out from the opening 1a, the lid 2 is laid on the upper surface of the package 1 as it is, and the lid 2 is adhered to the periphery of the opening 1a. Can be sealed. Therefore, when attaching the lid 2 again, the lid 2 is attached to the surface of the package 1 in a state where the lid 2 is returned to the original position, so that the lid 2 and the opening 1a need to be aligned. Disappears, and the lid 2 is always stuck to a predetermined position of the package 1.

[0007]

However, this package 1
5A, when the grip portion 2b of the lid member 2 is gripped and peeled in a direction away from the package 1 from the state of FIG. 5A, the peeling does not always stop at the notches 2c and 2c. When the lid 2 is peeled off, the fixed end 2a is
Was sometimes peeled off from the surface. In addition, lid material 2
In order to prevent the peeling of the notch from reaching the fixed end 2a, it is necessary to increase the cutout size of the notches 2c and 2c to improve the hinge function of the portion sandwiched between the notches 2c and 2c. However, if the cutout size of the cutouts 2c, 2c is increased, the strength of the lid 2 is reduced, and cracks may be formed in the cutouts 2c, 2c during repeated peeling.

[0008] Further, as shown in FIG.
When the user releases the lid 2 after peeling off the opening 1a from the opening 1a, there is a disadvantage that the lid 2 easily falls down in the direction covering the opening 1a. That is, the lid member 2 has a certain degree of rigidity, and particularly when the lid member 2 is formed mainly of a PET film, the rigidity is high. 2 easily falls in the direction covering the opening 1a.

If the cover 2 falls down in the direction covering the opening 1a immediately after releasing the hand, the cover 2 is adhered to the surface of the package 1 by the adhesive layer on the lower surface of the cover 2. When you want to take out the wet tissue 3,
An operation of peeling off from the package 1 is required. Therefore, for example, if the user removes his / her hand from the lid member 2 while wiping the buttocks of the baby, the lid member 2 will fall down.
The cover material 2 must be peeled off from the cover. Alternatively, the lid 2 must always be held down with one hand so as not to return in the direction of the opening 1a, which is very inconvenient.

The present invention has been made to solve the above-mentioned conventional problems, and when peeling off a lid material from a package, peeling is surely stopped at a fixed end portion, and a hinge portion of the lid material is removed. An object of the present invention is to provide a package opening mechanism capable of increasing strength.

Further, according to the present invention, after the lid material for covering the opening formed in the package is pulled in the direction in which the opening is opened, the lid material covers the opening even if the hand is released from the lid material. An object of the present invention is to provide an opening mechanism for a package in which an opening can be maintained in an open state without returning.

[0012]

SUMMARY OF THE INVENTION A package opening mechanism according to the present invention has a package in which an opening for taking out contents is formed, and a lid material for covering the opening of the package. The fixed end of the lid material is fixed to the surface of the package, and the portion of the lid material folded back from the fixed end becomes a sealing portion covering the opening. And an adhesive layer that adheres to the surface of the package body.

[0013] Alternatively, the package opening mechanism according to the present invention comprises:
A package in which an opening for taking out the contents is formed,
A lid covering the opening of the package, wherein the lid is formed to extend in a direction opposite to the opening from a bonding portion of the packaging material forming the package, and The part folded back from becomes a sealing part covering the opening,
An adhesive layer that adheres to the surface of the package around the opening is provided on the sealing portion.

In the above, it is preferable that the folded portion of the lid material be a hinge portion, and the hinge portion be formed thinner than a sealing portion covering the opening.

In the present invention, a wet tissue or the like impregnated with a chemical solution or a cosmetic is stored in a package formed of a laminated film or the like, and the package has an opening for removing the wet tissue or the like. It is formed and a lid member for closing the opening is provided.

[0016] The lid member is fixed to the surface of the package via an adhesive layer, for example. The lid is formed of a laminate of a film such as polyethylene or polypropylene and a PET film, and an adhesive layer is formed on a portion facing the package, and the adhesive layer adheres to the surface of the package by the adhesive layer. It has become. The adhesive layer can be repeatedly peeled / adhered so that the adhesive layer can be peeled off from the surface of the package and maintain the adhesive force when the lid is pressed again against the package. Vinyl composition,
It is mainly composed of a grafter such as a graft copolymer obtained by graft-polymerizing an ethylene-vinyl acetate copolymer with a vinyl chloride monomer.

In the packaging material forming the package, a portion to be an opening later is perforated or the like (perforation).
, And a lid material is adhered to the part capable of being detached and the periphery thereof by an adhesive layer. When the lid material is first peeled off when used as a product, the part surrounded by the perforations and the like is peeled off while being adhered to the lid material, so that it is cut at the perforations and the like. As shown in FIG.
The opening 1 a is formed in the package 1, and the cut pieces 1 c separated by perforations or the like remain attached to the lid 2.
Therefore, when the lid material is again fallen on the surface of the package, the cut piece 1c covers the opening 1a, and the adhesive layer of the lid material is adhered to the periphery of the opening. Alternatively, the opening 1a is opened from the beginning in the package 1, the adhesive layer is formed only on the periphery of the lid 2 except for the portion facing the opening 1a, and the opening is formed by the lid 2. When sealed, the adhesive layer may not be in contact with the contents. In any case, the adhesive layer provided on the lid member does not come into contact with the contents from the opening.

In the first aspect of the present invention, the sealing portion of the lid member is adhesively fixed to the surface of the package by the adhesive layer, and the fixed end thereof is folded back by 180 degrees. It is fixed to the surface. The fixation between the fixed end and the package may be performed by an adhesive layer as described above, or may be performed by an adhesive having a stronger fixing force.

Since the fixed end of the lid material is fixed to the surface of the package in a state of being turned back by 180 degrees, when the lid material is peeled off from the surface of the package, the fixed end portion is attached to the fixed end portion from the package. Peeling force is less likely to act. Therefore, peeling of the lid material is easily stopped at the folded part (hinge part), and the fixed end does not peel off from the surface of the package. Also 180
Since the folded portion functions as the hinge portion (a), it is not necessary to form the hinge portion by the notches 2c and 2 as in the conventional example shown in FIG. Therefore, the strength at the hinge portion of the lid member can be increased.

When the lid is peeled off to open the opening, a force tends to extend in a plane at the hinge (a) between the sealing portion of the lid and the fixed end. 1
As shown in (B), the lid 2 easily falls down to the side opposite to the opening 1a, and the lid 2 is less likely to return in the direction of the opening.
Therefore, when removing the wet tissue from the package, it is not necessary to press the lid material by hand so as not to fall to the opening side, and the wet tissue can be easily removed.

In the second aspect of the present invention, as shown in FIG. 2 (B), the lid member is oriented in a direction opposite to the opening along the surface of the package from the bonded portion of the package. Extending in the direction (direction). Then, the opening is sealed with the lid by folding the lid 180 degrees from the bonding portion and adhering the lid to the surface of the package. Therefore, when the lid material is peeled off from the surface of the package, as shown in FIG. 2 (B), the lid material easily falls down in the direction and hardly returns in the direction of the opening portion. Even if it is not pressed, it will not fall down toward the opening.

However, in FIG. 1A, if the hinge portion (a) bent at the boundary between the fixed end of the lid member and the sealing portion is softer than the other portions, FIG. From the state in which the lid member is tilted in the direction opposite to the opening, the lid member can be easily tilted in the direction to cover the opening as shown in FIG. Further, as shown in FIG. 1A, when the lid 2 covers the opening on the surface of the package 1, the lid 2 is less likely to float, and the lid is securely placed on the surface of the package. The state of being stuck and sealing the opening is stabilized. This is shown in FIGS.
The same applies to the hinge portion (b) of the lid member shown in FIG. Therefore, it is preferable to make the hinge portion soft by, for example, reducing the number of film layers laminated on the hinge portions (a) and (b) of the lid material compared with the other portions.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1A and 1B are perspective views showing a first embodiment of a package and an opening mechanism thereof according to the present invention, wherein FIG. 1A shows a state in which a cover material covers an opening, and FIG. Is shown in a state where it is tilted in a direction to open. FIG.
FIG. 3 is a sectional view taken along line III-III in FIG. As shown in FIG. 3, the packaging material F constituting the packaging body 1 has a heat seal layer f3 called a sealant such as a polyethylene terephthalate (PET) layer f1, an aluminum foil f2, and biaxially oriented polypropylene (OPP).
Are formed from a laminated film (laminated sheet) which is sequentially laminated and adhered by dry lamination or the like. Alternatively, a volume P in which an aluminum layer is deposited on PET
The heat seal layer may be laminated on the ET.

The biaxially oriented polypropylene has a heat sealing property in which it melts when heat is applied, and the fused portions are joined together. The packaging material F includes a heat seal layer f
FIG. 1 (A)
In the vertical seal portion located on the bottom side of (B) and the horizontal seal portions 1b and 1b located before and after the package, the heat seal layers f3 of the packaging material F are aligned, pressed and heated, The packaging material F is heat-welded at each seal portion. In addition, in order to improve the heat seal strength, a laminate of two layers of OPP and polyethylene (PE) may be used as the heat seal layer f3.

Since the aluminum foil f2 does not transmit water or oxygen and has excellent airtightness, when a wet tissue 3 impregnated with a cosmetic or a drug is placed in a package, the aluminum foil f2 is dried. Can be prevented. On the surface of the aluminum foil f2, a mark of a product, characters for handling explanation, and the like are printed, and the PET layer f1 is laminated on the surface of the aluminum foil to protect the printing.

As shown in FIG. 1B, an opening 1a for taking out contents such as a wet tissue 3 can be formed on the surface of the package 1.
As shown in FIG. 3, a perforation P such as a perforation or a cut at a constant pitch is formed in the packaging material F forming the package 1 so that a portion serving as the opening 1a is cut out. A portion of a predetermined area A surrounded by perforations is a cut piece 1c. A cover 4 is adhesively fixed to the surface (upper surface) of the package 1. The lid 4 has a fixed end 4a folded back by 180 degrees, and a portion that is folded back from the fixed end 4a and covers the opening 1a is a sealing portion 4b. The edge of the tip of the sealing portion 4b is a small arc-shaped knob 4d.

As shown in FIG. 3, the lid member 4 is mainly composed of a synthetic resin film layer fa such as polypropylene (PP) or polyethylene (PE), and has the fixed end 4a and the folded hinge portion ( Sealing part 4 except a)
In the part b, the PET layer fb is laminated on the surface. Therefore, in the lid member 4, the sealing portion 4b has a high rigidity due to the lamination of PP or PE and PET, but the hinge portion (a) has only the PP or PE and the sealing portion 4b. It is thinner and softer.

On the surface of the sealing portion 4b facing the package 1, an adhesive is applied to the entire surface excluding the knob 4d to form an adhesive layer 4c. The area of the adhesive layer 4c (the hatched portion in FIG. 1B) is large enough to cover the opening 1a indicated by the area A in FIG. 3 and a predetermined area around the opening 1a. . At the fixed end 4a, an adhesive layer 4e is formed on the surface turned 180 degrees. The adhesive layer 4c and the adhesive layer 4e are adhesively fixed to the surface of the package 1.

In the manufacturing process of the package 1, the PET layer f1,
A perforation P is cut in advance into the packaging material F on which the aluminum foil f2 and the heat seal layer f3 are laminated, and a portion surrounded by the perforation P becomes a cut piece 1c, and when this is cut, an opening 1a is formed. It is supposed to be. As shown in FIG. 3, the cover material 4 is provided with the adhesive layer 4c and the adhesive layer 4c on the region surrounded by the perforations P of the packaging material F and on the surface around the region.
e. Thereafter, the folded wet tissue serving as the content is wrapped with the packaging material F, and the heat seal layers f3 are welded to each other by heat sealing to form a vertical seal portion and the horizontal seal portions 1b and 1b.
In FIG. 1, the heat seal layers f3 are heat-welded to each other.
The package 1 shown in (A) is completed.

When the package 1 is used for the first time, when the knob 4 d is gripped and the lid 4 is pulled, the adhesive layer 4 c on the back surface of the lid 4 is peeled off from the surface of the package 1. At this time, the cut piece 1c of the area A is peeled off while being adhered to the adhesive layer 4c, and the packaging material F is cut at the part of the perforation P. Therefore, as shown in FIG. 1B, the cut piece 1 c is stuck to the lid member 4 side, and the opening 1 a is formed in the package 1. When the lid 4 is peeled off, 180
The peeling force from the surface of the package 1 hardly acts on the fixed end 4a that is folded back, so that the fixed end 4a does not easily peel off from the surface of the package 1. Further, even if a notch or the like is not formed in the hinge part (a), the peeling of the lid member 4 is easily stopped at the hinge part (a), so that the strength of the lid member 4 is increased.

Further, as shown in FIG. 1B, with the lid 4 opened, the wet tissue 3 is opened through the opening 1a.
At this time, at the hinge portion (a) of the lid member 4, the resin film layer fa tends to expand in a plane, so that the sealing portion 4 b of the lid member 4 is opposite to the opening 1 a. Side and easily return to the direction of the opening 1a.
Therefore, the lid member 4 is maintained in the state shown in FIG. 1B, and the opening 1a remains open even if the lid member 4 is not manually pressed. Therefore, the wet tissue 3 can be continuously taken out from the opening 1a.

When the removal of the wet tissue 3 is completed, the lid 4 is turned in the direction shown in FIG. 1A to close the opening 1a. At this time, the PET layer fb at the hinge (a) is closed.
Is not formed, and the hinge portion (a) is soft, so that the resin film layer fa can be easily folded back at the hinge portion (a). And the adhesive layer 4c is the package 1
At this time, since the hinge portion (a) is soft at this time, the sealing portion 4b of the lid member 4 is less likely to rise from the surface of the package 1, and the opening 1a can be securely sealed. .
Further, when the lid member 4 is closed, the cut piece 1c is closed by the opening 1a.
Therefore, the adhesive layer 4c of the lid member 4 does not come into contact with the wet tissue 3.

FIGS. 2A and 2B are perspective views showing a package according to a second embodiment of the present invention and an opening mechanism thereof.
(A) shows a state in which the lid is closed, and (B) shows a state in which the lid is opened and the opening of the package is opened. FIG. 4 is a sectional view taken along line IV-IV of FIG. The package 5 has a PET layer f as described above.
1, an aluminum foil f2 and a heat sealing layer f3 are formed of a packaging material F laminated. This package 5
Means that the wet tissue 3 as the content is wrapped by the packaging material F, and the heat sealing layer f of the packaging material F is
3 are thermally welded to each other, and the front and rear
The package 5 is formed by heat-welding the heat seal layers f3 at b and 5b.

However, as shown in FIG. 4, the bonding portion of the vertical seal portion 5d is turned down in the direction, and a part of the packaging material F extends in the direction from the bonding portion, and the lid material 5A is integrated. Is formed. In the lid 5A, the tip of the vertical seal portion 5d becomes a hinge portion (b), and
The sealing portion 5E can be folded back by 80 degrees. The tip of the sealing portion 5E is a knob 5D. The hatched portion of the lid 5A except for the hinge (b) and the knob 5D is coated with an adhesive to form an adhesive layer 5C. As shown in FIG. 2A, in the package 5 immediately after the manufacturing, the lid 5A is folded back at 180 degrees at the hinge portion (b) and is adhered to the surface of the package 5 by the adhesive layer 5C.

When the knob 5D is first used and the lid 5A is peeled off, the cut piece 5c is turned off.
The packaging material F is cut by the perforation described above, and the opening 5a is opened. FIG.
In the open state of (B), since the lid 5A tends to fall in the direction and does not return in the direction of the opening 5a, the opening 5a is not closed by the lid 5A and the lid is opened by hand. There is no need to hold 5A. Further, the strength of the lid 5A can be sufficiently maintained.

After taking out the wet tissue 3 from the opening 5a, the lid 5A is folded back by 180 degrees and adhered to the outer periphery of the opening 5a and sealed. At this time, the lid material 5A
(B) in order to make it easy to fold 180 degrees
May be configured to be thinner and softer than the sealing portion 5E. In FIG. 2, since the lid is formed by the packaging material F of the package, there is no need to separately provide a sheet for the lid, and the production can be performed at low cost.

[0037]

As described above, in the package sealing mechanism of the present invention, when the lid is peeled off from the surface of the package, the fixed end of the lid is less likely to peel off from the package. Further, since the folded portion of the lid material functions as a hinge, it is not necessary to form a notch in the hinge portion, and the strength of the lid material is increased.

When the lid is peeled off from the opening of the package, the lid falls down in the direction opposite to the opening, and it is difficult to return to the opening. Therefore, even if the user releases his / her hands after opening the lid material, the contents such as wet tissue can be continuously taken out with one hand without the lid material falling down in the direction of closing the opening.

After the contents are taken out, the opening can be securely sealed by the lid material. In particular, by forming the folded portion of the lid material softer than the other portions, the lid material can be easily tilted in a direction to close the opening.

Further, it is possible to form the lid with the wrapping material constituting the package so that it is not necessary to separately form the lid and to reduce the cost.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a sealing mechanism for a package according to the present invention, wherein (A) shows a state in which an opening is covered by a lid material, and (B) shows a state in which the lid material is opened. Shows the state where the opening is open,

FIGS. 2A and 2B are perspective views showing a second embodiment of a sealing mechanism for a package according to the present invention, wherein FIG. 2A is a state in which an opening is covered by a lid, and FIG. Indicating that the opening is open.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV of FIG.

FIG. 5 is a perspective view of a conventional package, wherein (A) shows a state in which an opening is covered by a lid material, and (B) shows a state in which the lid material is opened and an opening is opened;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Package 1a Opening part 3 Wet tissue 4 Lid material 4a Fixed end 4b Sealing part 4c Adhesive layer 4d Knob part 5 Package 5a Opening 5d Vertical seal part (lamination part) 5A Lid material 5C adhesive layer

Claims (3)

[Claims] 1. A package having an opening for taking out contents, and a lid covering the opening of the package, and a fixed end of the lid is fixed to a surface of the package. The portion of the lid material folded back from the fixed end is a sealing portion covering the opening, and the sealing portion is provided with an adhesive layer that adheres to the surface of the package around the opening. A package opening mechanism. 2. A package having an opening for taking out the contents, and a lid covering the opening of the package, wherein the lid is attached to a packaging material forming the package. A portion that is formed to extend in a direction opposite to the opening from the joining portion and that is folded back from the bonding portion serves as a sealing portion that covers the opening, and in the sealing portion, around the opening. An opening mechanism for a package, comprising a pressure-sensitive adhesive layer provided on the surface of the package. 3. The package opening mechanism according to claim 1, wherein the folded back portion of the lid member serves as a hinge portion, and the hinge portion is configured to be thinner than a sealing portion covering the opening.