JPH1053286A - Unsealing structure of package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the strength of the fixed end of a cover material, and reduce the production cost, by extending the cover material from the sticking part of the packaging material forming a package, and integrally forming it together with the packaging material, in the package having an opening and the cover material covering it. SOLUTION: An opening 5a is formed to take out the contents at the surface of a package 5. A vertical seal 5D is brought down to the (2) direction and a part of the packaging materiel is stretched from the vertical seal 5D to the opening 5a side to form the cover material 5A. In this case, the end of the packaging material superposed at the upper side may be stretched to form the cover material 5A or the end of the packaging material superposed at the lower side may be stretched to form the cover material 5A. And further, the packaging material stretched from both upper and lower sides may be stuck to each other at the opposite faces to form the cover material. In this way, since the cover material is integrally formed with the package, the production cost can be reduced. When the cover material is peeled off from the package to open the opening, the cover material is not completely peeled off from the package and hence, the strength of the base end of the cover material can be increased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a package containing a wet tissue and the like, which can be easily opened.
Also, the present invention relates to an opening mechanism for a package that can reduce manufacturing costs.

[0002]

2. Description of the Related Art FIGS. 7A and 7B are perspective views showing a conventional package for accommodating a wet tissue in which a sheet-like fiber material is impregnated with a drug or the like. FIG. (B) shows a state where the lid member is opened. The packaging material constituting the package 1 is, for example, a laminated material in which a PET (polyethylene terephthalate) film, an aluminum foil, and a sealant layer are laminated in this order from the front side, and is vertically arranged on the bottom side of the package 1 shown in FIG. In addition to being sealed, the front and rear end portions are horizontally sealed to form horizontal sealing portions 1b and 1b, thereby forming a substantially cubic soft sealing body. The wet tissue 3 is stored inside the sealing body in an overlapping manner. ing.

[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. The lid 2 is formed of a laminate of a film such as polyethylene or polypropylene and a PET film or a PP film as a printing substrate, and an adhesive layer is formed on a portion facing the package. 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,
The packaging material is cut at the perforation and the opening 1a is cut.
Is formed. Then, after opening once and taking out the wet tissue 3 from the opening 1a, the opening 1a is again covered with the cover material 2, and the adhesive layer of the cover material 2 adheres to the package around the opening 1a, The opening 1a is closed. By sealing the opening 1a with the lid member 2 when not in use, drying of the wet tissue 3 in the package 1 can be prevented.

In the package 1 before the one shown in FIG. 7, since the lid 2 was completely peeled off from the upper surface of the package 1, after the wet tissue 3 was taken out from the opening 1a, It was necessary to attach the lid member 2 again to the position of the opening 1a. However, it is not only time-consuming to reposition the completely peeled lid material 2 into the opening 1a and affixing the same, but also the opening 1a is originally required.
There is a problem that an adhesive layer to be attached to the periphery of the wet tissue 3 is attached to the wet tissue 3 exposed from the opening 1a.

Therefore, in the package 1 shown in FIG.
A portion of the lid member 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 portion. And
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, the knob 2b at the tip of the lid 2 is picked up by hand and the lid 2 is peeled off.
When the hinge portion between the notches 2c and 2c is peeled off, as shown in FIG. 7 (B), the lid 2 has the opening 1a with the fixed end 2a fixed to the surface of the package 1. Will be released. After taking out the wet tissue 3 from the opening 1a, the lid 2 is laid on the upper surface of the package 1 as it is, the lid 2 is adhered to the periphery of the opening 1a, and the opening 1a is sealed with the lid 2. I can do it. 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.

[0006]

However, this package 1
7A, when the grip portion 2b of the lid member 2 is gripped from the state of FIG. 7A and peeled off in the direction away from the package 1, the peeling always stops at the cutouts 2c and 2c. However, the fixed end 2a may be peeled off from the surface of the package 1 when the lid 2 is pulled vigorously.
Further, in order to stop the peeling at the fixed end 2a, the cutout size of the notches 2c, 2c is increased, and
It is necessary to improve the hinge function of the portion sandwiched between c and 2c. However, if the cutout size of the cutouts 2c, 2c is lengthened, the strength at the hinge portion of the cover member 2 becomes low, and the cutouts 2c, 2c are formed during repeated peeling.
A crack may be formed in the portion c. Further, as described above, the lid material is formed of a laminate material of a film such as polyethylene or polypropylene and a PET film, and such a sheet material must be manufactured separately from the packaging material constituting the package. However, there is a problem that the cost of the lid material is high.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and can easily open and close, can increase the strength at the fixed end of the lid material, and can reduce the manufacturing cost as compared with the conventional one. It is intended to provide.

[0008]

In order to solve the above-mentioned problems, a package opening mechanism according to the present invention is directed to a package having an opening for taking out contents and a lid material for covering the opening. The lid material is formed integrally with the packaging material by extending from a bonding portion of the packaging material forming the package, and a sealing portion covering the opening of the lid material is provided around the opening. An adhesive layer is provided on the surface of the package so as to adhere.

[0009] The lid material extends from the bonding portion of the packaging material forming the package in the direction opposite to the opening of the packaging material, is formed integrally with the packaging material, and is folded back from the bonding portion. It is desirable to be configured to cover the opening.

It is preferable that the periphery of the opening of the package is formed to be thicker than other portions of the packaging material.

Further, it is possible to adopt a structure in which a notch for separating from the packaging material is formed in the hinge portion where the lid material of the packaging material is folded back.

The package of the present invention is manufactured by laminating a packaging material such as a laminated film by heat sealing or the like, and forming it into a predetermined shape. A wet tissue or the like impregnated with a chemical solution or the like is stored in the package, and the package is provided with an opening for taking out contents such as a wet tissue, and a lid material for covering the opening. ing.

An adhesive layer is formed on a sealing portion of the lid covering the opening of the package, and the adhesive is adhered to the package around the opening to cover the opening. 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 material is pressed again against the package. For example, polychloride containing a plasticizer is used. It is mainly composed of a grafter such as a vinyl composition or a graft copolymer obtained by graft-polymerizing a vinyl chloride monomer on an ethylene-vinyl acetate copolymer.

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 the package is formed by the perforations and the like. As shown in FIG. 1B, the package 5 is cut to form an opening 5a in the package 5, and the cut piece 5c cut at a perforation or the like remains attached to the lid 5A. Therefore, when the lid member is again brought down on the surface of the package, the cut piece 5c covers the opening 5a, and the adhesive layer of the lid member is adhered to the periphery of the opening. Alternatively, the opening 5a is opened from the beginning in the package 5, and an adhesive layer is formed only on the periphery of the lid 5A except for the part facing the opening 5a, and the opening is formed by the lid 5A. 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.

As shown in FIG. 1, the lid material is formed integrally with the packaging material so that the packaging material extends from the bonded portion of the packaging body toward the opening of the packaging body. Therefore, there is no need to separately manufacture the lid material and the packaging material as in the related art, and the manufacturing cost of the package can be reduced. In addition, it is not necessary to position and attach a separately manufactured lid member to the formation portion of the opening of the package, and the manufacturing process of the package can be simplified and the manufacturing time can be shortened. .

Further, when the opening is opened by peeling the lid from the package, the lid is not completely peeled from the package, and the strength of the base end of the lid can be increased.

Further, as shown in FIG. 2 (B), the lid material is extended from the bonding portion of the packaging material of the package in the direction (direction) opposite to the opening along the surface of the package. It may be formed. In this case, 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 is peeled off from the surface of the package, as shown in FIG. 2 (B), the lid is likely to fall in the direction and hard to return to the opening, and the lid once opened is pressed by hand. Even if it is not, it will not fall down in the direction of the opening, and it will be easy to take out wet tissue or the like continuously.

Further, as shown in FIG. 5, at the periphery of the opening of the package, the back surface of the packaging material (the surface facing the inside of the package).
When the reinforcing sheet 6 such as PET is heat-sealed and adhered to the packaging material, the periphery of the opening is formed thicker than other parts.
The rigidity of the package is increased in the periphery of the opening, so that the package is less likely to bend or wrinkle in the periphery of the opening.
When the opening 5a is covered with A, the lid 5A and the periphery of the opening are adhered without any gap, and the opening 5a can be covered by the lid 5A by blocking the outside air more effectively. .

As shown in FIG. 6, when the notch 7 is partially formed in the hinge portion (a) of the lid 5A, the notch 7 is used to completely remove the lid 5A from the package 5. It can be peeled off and used in containers.
In this way, by providing the cut 7, the package 5 can be used either as it is or when used in a container.

In the embodiment described below, the bonding portion of the package is a so-called palm bonding in which the back surfaces of the films are heat-sealed at the end of the packaging material, but the present invention is not limited to this. Instead, the end on which the lid is formed may be overlaid on the other end, and may be a so-called envelope pasted near the extension start end of the lid, and even in this case, its effect is any. does not change.

[0021]

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 5 has a heat seal layer f3 called a sealant such as a polyethylene terephthalate (PET) layer f1, an aluminum foil f2, or a stretched polypropylene (CPP) on the surface thereof. It is composed of a laminated film (laminated sheet) that is sequentially laminated and adhered by lamination or the like. Or PE
A heat seal layer may be laminated on PET in which an aluminum, silica or alumina layer is deposited on T.

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)
(B) A vertical seal portion 5d serving as a bonding portion on the surface of the package and horizontal seal portions 5b and 5 located before and after the package.
In b, the heat seal layers f3 of the packaging material F are joined together, pressed and heated, so that the packaging material F is thermally welded at each of the seal portions. In addition, in order to improve the heat seal strength, a laminate of two layers of CPP and polyethylene (PE) or a PET half 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 are printed a mark of a product, characters for handling instructions, and the like, 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 5a for taking out contents such as a wet tissue 3 is formed on the surface of the package 5. As shown in FIG. 3, the packaging material F forming the package 5 has an opening 5a.
A perforation P such as a perforation or a cut at a constant pitch is formed so that a portion to be cut off is formed, and a portion having a predetermined area A surrounded by the perforation P is a cut piece 5c.

As shown in FIGS. 1 (A) and 1 (B), the vertical seal portion 5d is tilted in the direction.
d, a part of the packaging material F extends toward the opening 5a,
A is formed. In FIGS. 1A and 1B, the end of the packaging material F stacked on the upper side in the vertical seal portion 5d extends to form the lid material 5A, but the lid material 5A is formed on the lower side. The cover material 5A may be formed so as to extend from the overlapping packaging material F. Alternatively, the packaging material F may extend from both the upper side and the lower side, and may be adhered on opposing surfaces to form the lid material 5A.
In this case, the strength of the lid member 5A is increased, and the lid member 5A can withstand repeated peeling operations for opening and closing the opening 5a.

The base of the lid 5A, that is, the vertical seal 5
and a hinge portion (a) at the boundary with the knob portion d, and a knob portion 5D having a small arc-shaped edge at the tip of the lid material 5A.
It has become. On the surface of the lid 5A facing the package, an adhesive is applied to a hatched portion excluding the hinge (a) and the knob 5D to form an adhesive layer 5C. In the package body 5 immediately after production, as shown in FIG.
The lid member 5A is turned down to the opening 5a side and is adhered to the surface of the package 5 by the adhesive layer 5C.

In the manufacturing process of the package 5, the PET layer f1,
The laminated body is formed in a predetermined shape so that a protruding portion serving as the lid member 5A is formed at a certain interval at one longitudinal end of the laminated body on which the aluminum foil f2 and the heat seal layer f3 are laminated. It is cut to form the packaging material F. Then, a perforation P is cut in advance in the packaging material F at a position parallel to the projecting direction of the lid material 5A. Then,
The folded wet tissue 3 serving as the contents is wrapped with the packaging material F, and the longitudinal ends of the packaging material F are joined so that the heat seal layers f3 face each other, and the lid material 5 is formed.
The heat seal layers f3 are welded to each other by heat sealing on the inner side of the extended portion of A, and the vertical seal portion 5d is formed.

In any of the above steps, an adhesive layer 5C is formed on the entire surface of one side of the lid 5A facing the package 5. After the vertical seal portion 5d is formed, the vertical seal portion 5d is tilted in the direction, and the lid 5A is adhered to the portion of the packaging material F surrounded by the perforations P. Further, the horizontal seal portions 5b, 5b The heat seal layers f3 are thermally welded to each other to complete the package 1 shown in FIG. In the package body 5 formed in this manner, since the lid material 5A is formed integrally with the packaging material F, the manufacturing cost can be reduced as compared with the case where the lid material 5A is manufactured separately from the packaging material F. . Further, the lid 5A is not peeled off from the package 5 during the peeling operation of the lid 5A, and the lid 5A is always fixed to the package 5.

When the package 5 is first used, when the knob 5D is gripped and the cover 5A is pulled in the direction, the adhesive layer 5C on the back surface of the cover 5 is peeled off from the surface of the package 5. At this time, the cut piece 5c of the area A is peeled off while being adhered to the adhesive layer 5C, and the packaging material F is cut at the part of the perforation P. Therefore, as shown in FIG. 1B, the cut piece 5c is stuck to the lid 5A side, and the package 5
Is formed with an opening 5a. Therefore, when the removal of the wet tissue 3 is completed and the lid 5A is turned in the direction shown in FIG. 1A to close the opening 5a, the position of the cut piece 5c matches the position of the opening 5a, and the opening 5a is closed. The adhesive layer 5C does not come into contact with the wet tissue emerging from the surface.

Further, the opening 5a is opened from the beginning in the package 5, and the adhesive layer is partially formed only on the periphery of the lid 5A except for the portion facing the opening 5a. When the opening is sealed at 5A, the adhesive layer may not be in contact with the contents. At this time, since the area of the portion where the adhesive layer is not formed can be made larger than the area of the opening 5a, the adhesive layer is less likely to adhere to the wet tissue. The lid 5A is folded back at the tip (a) of the vertical seal to open the opening 5a.
(A) is a hinge portion, and when this hinge portion (a) is formed thinner and softer than other portions,
It becomes easy to lift the lid 5A.

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 sealing 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 (a),
It can be folded back by 80 degrees. The tip of the lid 5A is a knob 5D. The hatched portion of the lid 5A except for the hinge portion (a) 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 production, the lid 5A is folded back at 180 ° at the hinge portion (a) and is adhered to the surface of the package 5 by the adhesive layer 5C.

At the time of first use, when the knob 5D is gripped and the lid 5A is peeled off, the cut piece 5c is turned into the lid 5A.
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. After removing the wet tissue 3 from the opening 5a, the lid 5A is
It is folded back by 80 degrees and is adhered to the outer periphery of the opening 5a and sealed. At this time, the hinge portion (a) may be configured to be thinner and softer than the lid member 5A so that the lid member 5A can be easily folded back by 180 degrees.

The packaging material F is provided around the opening 5a.
When the thickness is formed thick, wrinkles and bending are less likely to occur in the package around the opening, and the airtightness of the package 5 when the lid 5A is closed can be further increased. In the embodiment shown in FIG. 5, a reinforcing sheet 6 such as PET is adhered to the heat seal layer f3 of the packaging material F around the opening 5a. With such a configuration, the rigidity of the package body is increased in the peripheral portion of the opening, and it is difficult to bend or wrinkle, so that the lid member 5A can adhere to the package 5 and the peripheral portion of the opening 5a without any gap. As a result, the airtightness of the package 5 when the lid 5A is closed can be further enhanced, and the drying of the wet tissue 3 can be more effectively prevented.

As shown in FIG. 6, when the notch 7 is formed in the hinge portion (a) of the lid 5A, when the package 5 is used in a container or the like, the notch is triggered by the cut. 5A can be completely separated from the package. Therefore, the same package can be used in a container.

[0036]

As described above, in the sealing mechanism for a package according to the present invention, since the lid is formed integrally with the package, the lid is formed as compared with the case where the lid is manufactured separately from the package. Body manufacturing costs can be reduced. Further, when the opening is opened by peeling the lid from the package, the lid is not completely peeled from the package, so that the strength of the base end portion of the lid can be increased.

When the lid is formed so as to extend in the direction opposite to the opening, the lid falls down to the opposite side of the opening, making it 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.

When a PET film or the like is adhered to the periphery of the opening and the package is partially thickened in the periphery of the opening, wrinkles and bending are less likely to occur in the periphery of the opening. The bonding can be more reliably performed.

Furthermore, if a cut is made near the hinge portion of the lid, the cut can trigger the lid to be completely peeled off, so that the package can be used in a container.

[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 showing a third embodiment of the package of the present invention;

FIG. 6 is a perspective view showing a fourth embodiment of the package of the present invention;

7A and 7B are perspective views of a conventional package, wherein FIG. 7A shows a state in which an opening is covered by a lid, and FIG. 7B shows a state in which the lid is opened and an opening is opened.

[Explanation of symbols]

 Reference Signs List 3 wet tissue 5 package 5a opening 5d vertical seal part (laminated part) 5A lid material 5C adhesive layer (a) hinge part F packaging material

Claims (4)

[Claims] 1. A package having an opening for taking out contents and a cover covering the opening, wherein the cover extends from a bonding portion of the package forming the package, and the package includes a cover. And a sealing portion that covers the opening of the lid member is provided with an adhesive layer that adheres to the surface of the package around the opening. Opening mechanism. 2. The lid material extends from the bonding portion of the packaging material forming the package in the direction opposite to the opening of the package, and the lid material is folded back from the bonding portion to form the opening. The package opening mechanism according to claim 1, which covers the package. 3. The package opening mechanism according to claim 1, wherein a peripheral portion of the opening of the package is formed thicker than other portions of the packaging material. 4. The package opening mechanism according to claim 1, wherein a notch is formed at a base portion of the lid member so as to be separated from the packaging material.