JP2009249032A - Package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a package capable of being provided with an opening part by releasing a lid label from a shape-retaining sheet, and provided with the lid label inhibited from causing waves and creases on the edge of the opening part formed, which lid label can be freely opened and closed. <P>SOLUTION: The package has a packaging bag for sealing and packaging a content and formed of a flexible laminated sheet made mainly of synthetic resins, a shape-retaining sheet stuck on the outer face and more rigid than the laminated sheet, and a lid label provided with a pressure-sensitive adhesive layer capable of re-releasing and re-sticking on one face of a lid substrate layer, and stuck on the shape-retaining sheet by bringing it into contact with the pressure-sensitive adhesive layer face. Cut lines are formed in a closed shape on the laminated sheet and the shape-retaining sheet within a region where the lid label is stuck. The lid label can be released from the shape retention sheet of a part excluding a planned opening part surrounded by the cut line, and the released part can be re-stuck to be freely opened/closed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a package such as a wet tissue or a candy such as candy and chocolate, and more specifically, an opening is formed when the lid label is opened, and the confectionery such as a wet tissue or candy or chocolate is taken out. The present invention relates to a package in which a lid label that can be held in a sealed state by closing the lid label after removal is configured to be openable and closable.

  Conventionally, for example, as a package for containing a wet tissue or the like, an article to be packaged is hermetically sealed with a non-breathable sheet-like packaging material, and a substantially U-shaped cut line is formed on the upper piece of the packaging material. A hard sheet made of a sheet material harder than the packaging material and having a larger opening than the portion of the U-shaped cut line at the center is attached to the upper part. Further, from above, a sheet-like outer lid having a size covering the opening can be peeled and reattached to the upper surface of the hard sheet and the upper surface of the packaging material facing the opening of the hard sheet with an adhesive. When the outer lid is peeled off, the inner lid, which is the inner region of the score line, is peeled off from the packaging material together with the outer lid, leaving a continuous connection portion with the packaging material, and then packaged For picking up objects Sealed package which is adapted opening is formed are known (e.g., see Patent Document 1).

Such a sealed package is a convenient form suitable for portability without being bulky as compared with the one housed in a plastic container. However, when the outer lid is opened, there is a problem in that the value of the product is impaired due to the occurrence of undulations and wrinkles between the opening edge of the hard sheet and the cut line forming the opening for taking out the package.
JP-A-6-48475

  Therefore, the present invention has been made to solve the above-mentioned problems, and the object of the present invention is to form an opening by peeling the lid label from the shape-retaining sheet, and at the edge of the formed opening. An object of the present invention is to provide a package in which a lid label that does not generate undulations and wrinkles can be opened and closed.

  In order to achieve the above object, the present invention according to claim 1 is fixed to a packaging bag formed of a soft laminated sheet mainly composed of a synthetic resin for hermetically sealing the contents, and an outer surface thereof. Further, a mold-holding sheet harder than the laminated sheet and an adhesive layer that can be re-removed and re-adhered are provided on one surface of the lid base material layer, and the pressure-sensitive adhesive layer surface is brought into contact with the mold-holding sheet. A package having a lid label bonded thereto, wherein the lid label is formed so that a cut line is closed in the laminated sheet and the shape-retaining sheet in a region where the lid label is bonded. However, it is provided to be openable and closable so that it can be peeled off from the part of the shape-retaining sheet excluding the planned opening part surrounded by the cut line and the peeled part can be reattached. It is the package characterized by this.

  Moreover, the present invention according to claim 2 is the package according to claim 1, wherein the score line penetrates the laminated sheet from the laminated sheet side toward the shape-retaining sheet side and the mold-retaining type. It is characterized by being a half cut for half-cutting the adhesive sheet.

  The package of the present invention includes a packaging bag formed of a soft laminated sheet mainly composed of a synthetic resin for hermetically sealing the contents, a shape-retaining sheet harder than the laminated sheet fixed to the outer surface, a lid base And a lid having a lid label bonded to the shape-retaining sheet by contacting the pressure-sensitive adhesive layer with the pressure-sensitive adhesive layer on one surface of the material layer. The laminated sheet and the shape-retaining sheet in the bonded region are formed so that the cut line is closed, and the lid label is a part of the shape-retaining sheet excluding the planned opening portion surrounded by the cut line, and It is possible to peel off from the shape-retaining sheet from one end side of the lid label so that the peeled part can be re-adhered so that the peeled part can be reattached. Only the part surrounded by the cut line formed on the mold sheet is cut. The opening is formed in the portion surrounded by the cut line of the laminated sheet and the shape-retaining sheet, and the contents can be easily taken out from the opening. is there. Further, since there is no portion of only the laminated sheet at the opening edge of the opening, undulations and wrinkles are not generated at the edge of the formed opening.

  Further, in the present invention according to claim 2, the cut line is formed by a half cut that penetrates the laminated sheet from the laminated sheet side toward the shape-retaining sheet side and half-cuts the shape-retaining sheet. It is possible to prevent the gas barrier property of the sheet from being lowered and to improve the storage stability of the contents.

The above-described present invention will be described below with reference to the drawings.
1 is a perspective view showing an embodiment of a package according to the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, and FIG. 3 is a perspective view showing an unsealed state of a lid label of the package according to the present invention. FIG. 4 and FIG. 4 are cross-sectional views corresponding to the line AA of FIG. 1 showing another embodiment, in which 1 is a packaging body, 2 is a packaging bag, 3 is a shape retaining sheet, 4 is Lid labels 5, 5 'are score lines, 6 is a planned opening, 7 is contents, 8 is an outlet, 20 is a laminated sheet, 21 is an upper end thermal bonding portion, 22 is a lower end thermal bonding portion, and 23 is a gusset portion , 40 is a knob, 41 is a cutting blade, 42 is a lid base material layer, 43 is an adhesive layer, and 60 is a cut piece.

  FIG. 1 is a perspective view showing an embodiment of a packaging body according to the present invention. The packaging body 1 of the present invention is formed from a soft laminated sheet 20 mainly composed of a synthetic resin for hermetically packaging the contents. A packaging bag 2, a shape-retaining sheet 3 harder than the laminated sheet 20 fixed to the outer surface thereof, and a releasable / re-adhesive pressure-sensitive adhesive layer are provided on one surface of the lid base material layer. 3 and a lid label 4 adhered with the pressure-sensitive adhesive layer surface in contact therewith. The lid label 4 has a substantially rectangular shape, and is provided with a knob 40 extending outward on one end side. The lid label 4 is provided with a knob 40 and when the lid label 4 is peeled off, the lid label 4 is prevented from being peeled off from the mold retaining sheet 3 and completely separated from the mold retaining sheet 3 as will be described later. Cutting edges 41 and 41 are provided from both ends of the cover label 4 in the peeling direction as stoppers for the purpose. In addition, the surface of the lid label 4 is printed with a picture, characters, a symbol indicating the peeling direction, and the like. The packaging bag 2 is in the form of a gusseted bag having a back-bonded thermal bonding portion (not shown), an upper end thermal bonding portion 21 and a lower end thermal bonding portion 22 for sealing and wrapping the contents, and having gusset portions 23 on both sides. In addition, although the form of the packaging bag 2 can be any form such as a pillow bag, a three-side seal bag, a four-side seal bag, etc., a gusset bag that can increase the storage capacity of the contents and easily take out the contents is a preferable form. is there.

  FIG. 2 is a cross-sectional view taken along line AA in FIG. 1 and shows a main part of the package 1 of the present invention. The package 1 has a shape-retaining sheet 3 harder than the laminated sheet 20 fixed to the outer surface of the packaging bag 2 formed from a soft laminated sheet 20 mainly composed of synthetic resin, and one surface of the lid base material layer 42. The lid label 4 provided with the pressure-sensitive adhesive layer 43 that can be re-removed and re-adhered is adhered to the shape-retaining sheet 3 with the surface of the pressure-sensitive adhesive layer 43 in contact therewith. In the region where the lid label 4 is adhered, the cut line 5 passing through the laminated sheet 20 constituting the packaging bag 2 and the shape-retaining sheet 3 adhered to the laminated sheet 20 is closed. For example, it is provided in the shape of a long hole. A portion surrounded by the cut line 5 is a planned opening portion 6. The lid label 4 can be peeled off from the shape-retaining sheet 3 and can be opened and closed so that it can be re-attached. The part to be removed is peeled off, and the planned opening 6 is not peeled off and remains adhered to the lid label 4 as one body. 1 and 2 show a state in which the contents 7, for example, wet tissue folded so that it can be taken out one by one is sealed and packaged in the packaging bag 2 and placed so that the lid label 4 is positioned on the upper side. .

  When the lid label 4 is peeled off, the planned opening portion 6 surrounded by the cut line 5 needs to be formed so that the cut line 5 has a closed shape in order to form an opening (hereinafter referred to as an outlet). However, the shape is arbitrary, such as a curved shape such as a circle or an ellipse, a square shape such as a rectangle or a hexagon, or a combination thereof. Such a cut line 5 penetrates the laminated sheet 20 and the shape-retaining sheet 3 with a punching device equipped with a predetermined cutting line 5 after fixing the shape-retaining sheet 3 to the laminated sheet 20. As given. In addition, it is preferable to provide a blade stopper on the cut line 5 as appropriate, and the blade stopper is preferably 1.0 mm or less. Although it depends on the size of the planned opening portion 6, it is preferable that the number of blade stoppers is small because it is easy to form the take-out port. Further, it is preferable to provide the knob portion 40 because it facilitates the opening operation. Further, the knob portion 40 is provided with a paste that removes the adhesive layer 43 or invalidates the adhesive force of the adhesive layer 43. It is preferable.

  Next, each material which comprises the package 1 of this invention is demonstrated. First, the laminated sheet 20 of the packaging bag 2 is configured by laminating a base material layer and a thermal adhesive resin layer. Moreover, an intermediate | middle layer can also be laminated | stacked between a base material layer and a thermoadhesive resin layer from the performance requested | required by the contents. As the base material used for the base material layer, a material having printability and mechanical strength is used. Plastic films such as polyethylene terephthalate, nylon, polyethylene, and polypropylene, and aluminum oxide, silicon oxide, etc. A film on which a metal oxide is deposited or a laminate of these can be used. The intermediate layer is provided when light-shielding properties or gas barrier properties are required, such as a plastic film used for the base material layer, a film obtained by vapor-depositing a metal such as aluminum, polyvinyl alcohol, and ethylene-vinyl acetate. A polymer saponified product or an aluminum foil can be used. The heat-adhesive resin layer may be a layer formed from a heat-adhesive resin that can be melted by heat and welded to each other, and may be appropriately selected and used depending on various conditions required for the packaging bag. For example, low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, polypropylene, ethylene-α olefin copolymer, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, It can be formed of an ionomer, an ethylene-acrylic acid copolymer, an ethylene-acrylic acid ester copolymer, or the like. As a method for laminating each layer, a known laminating method such as a sandwich lamination method or a dry lamination method may be used as appropriate.

Next, the lid label 4 will be described. As the base material used for the lid base material layer 42, a material having printability and mechanical strength is used, and a plastic film such as polyethylene terephthalate, polyethylene, polypropylene, styrene, synthetic paper, or a laminate or a laminate thereof. A laminate or the like obtained by appropriately combining these with an aluminum foil or vapor-deposited plastic film, or a laminate obtained by appropriately combining paper or the like can be used. Moreover, when providing printing on the lid | cover base material layer 42, you may provide surface protection layers, such as a polypropylene film, for protection of a printing surface and surface glossiness provision. Next, a configuration example of the lid label is illustrated.
Biaxially stretched polypropylene / printing / biaxially stretched polyethylene terephthalate film / adhesive / release paperBiaxially stretched polypropylene / printing / milk white biaxially stretched polyethylene terephthalate film / adhesive / release paperBiaxially stretched polypropylene / printing / synthesis Paper (for example, YUPO) / Adhesive / Release paper

As the pressure-sensitive adhesive layer 43 provided on one surface of the lid base material layer 42, a re-peelable and re-adhesive pressure-sensitive adhesive is used, and terpene resin is used for natural rubber latex, synthetic rubber latex, acrylic resin, rubber resin, or the like. Select from appropriate adhesives conventionally used, such as synthetic resins containing tackifiers such as rosin and rosin, and use well-known coating methods such as gravure coating, roll coating, or heat melt extrusion. It can form by apply | coating and you may add additives, such as a thickener, a dispersing agent, an antifoamer, an antistatic agent, and antiseptic | preservative, as needed. The application amount of the pressure-sensitive adhesive is suitably 10 to 30 g / m ² as a solid content. Moreover, you may add additives, such as adhesion inhibitors, such as a silica, to the adhesive of the adhesive layer 43. FIG.

  As the shape-retaining sheet 3, a harder sheet is used that is more rigid and harder than the laminated sheet 20 that constitutes the packaging bag 2. With this configuration, the lid label 4 can be easily opened and closed, and repeated. Even when opening and closing, it is possible to prevent undulations and wrinkles from occurring at the edge of the take-out port of the packaging bag 2. For the shape-retaining sheet 3, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polypropylene, polystyrene, ABS, acrylic, vinyl chloride, polycarbonate, acetate and the like can be used, and the thickness is 50 to 150 μm. Further, in order to control the adhesive force of the lid label 4 with the adhesive layer 43, a surface layer is provided by coating on the surface of the mold retaining sheet 3 that contacts the adhesive layer 43, and the adhesive force of the adhesive layer 43 is weak. It may be made to become.

  Next, a method for opening and closing the package 1 will be described with reference to FIGS. As shown in FIG. 1, when the grip portion 40 of the lid label 4 is picked and pulled toward the upper end heat bonding portion 21 of the packaging bag 2, first, the lid label 4 is peeled from the shape-retaining sheet 3, When the cut line 5 is reached, the laminated sheet 20 and the shape retaining sheet 3 of the planned opening portion 6 are cut along the cut line 5, and the laminated sheet 20 and the shape retaining sheet 3 of the cut planned opening portion 6 are the lid label. A cut piece 60 is formed in an integrated state with the lid label 4 while adhering to the pressure-sensitive adhesive layer 43, and the other region is peeled between the shape-retaining sheet 3 and the lid label 4, and the packaging bag. The laminated sheet 20 and the shape-retaining sheet 3 surrounded by the cut line 5 are cut out on the upper surface of 2 to form a take-out port 8, and the wet tissue as the contents 7 can be taken out from the take-out port 8. it can. After the required number of sheets is taken out, the opened lid label 4 is returned to its original position, and the cut piece 60 integrated with the lid label 4 is fitted into the take-out port 8, and the other portions are re-adhered to the shape-retaining sheet 3. Thus, the state shown in FIG.

  FIG. 4 is a cross-sectional view showing another embodiment and corresponding to the line AA of FIG. As shown in FIG. 4, the cut line 5 'is a half cut. The cut line 5 ′ is a half cut that penetrates the laminated sheet 20 from the laminated sheet 20 side toward the shape-retaining sheet 3 side and half-cuts the shape-retaining sheet 3. The half-cut depth is preferably increased, and it is preferable that the half-cut is made so as to penetrate through the laminated sheet 20 and the thickness of the non-penetrating portion in the thickness of the shape-retaining sheet 3 is 5 μm or less. When the depth of the half cut exceeds 5 μm in the thickness of the non-penetrating portion of the shape-holding sheet 3, when the lid label 4 is peeled off, it may not be cut along the cut line 5 and a takeout port may not be formed.

  Next, the present invention will be described in more detail with reference to the following examples.

<Production of shape-retaining sheet member and lid label>
Using a transparent polyethylene terephthalate film (PET) having a thickness of 100 μm for the shape-retaining sheet 3, a strong adhesive acrylic adhesive is coated at a solid content of 25 g / m ² on one side, and glassine paper is 40 g / m ^2. A polyethylene having a thickness of 20 μm was laminated on one side, and the polyethylene surface was bonded to a release processing surface of a release paper which was subjected to release processing, and punched out to a predetermined size to prepare a rectangular shape retaining sheet member. Next, the lid base material layer 42 is coated with a soft adhesive acrylic adhesive that can be re-removed and re-adhered on one side of a 80-μm-thick polypropylene synthetic paper (manufactured by YUPO Corporation). A base material (product name: YUPO 80 (UV) MW2 manufactured by Lintec Co., Ltd.), formed and laminated with polyethylene on one side of glassine paper and bonded to the release surface of the release paper that has been subjected to release treatment on the polyethylene surface. ), A 40 μm thick biaxially stretched polypropylene film was bonded to the synthetic paper surface of the substrate, and then punched out to a predetermined size to produce a cover label 4 with release paper.

<Production of packaging>
Next, a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm, an aluminum foil having a thickness of 7 μm, and a linear low density polyethylene film (LLDPE) having a thickness of 40 μm were laminated by a dry lamination method, thereby producing a laminated sheet 20. Next, the release sheet of the member for a shape-retaining sheet produced as described above was peeled off at a predetermined position of the laminated sheet 20, and the exposed strong adhesive pressure-sensitive adhesive surface was brought into contact therewith to fix the shape-retaining sheet. Next, a score line penetrating the laminated sheet and the shape-retaining sheet was applied from the LLDPE surface of the laminated sheet with a punching die provided with a long hole-shaped cutting blade having a predetermined dimension. After that, the release paper of the lid label 4 with release paper prepared above is peeled off and removed, the exposed pressure-sensitive adhesive layer surface is brought into contact with the surface of the shape-retaining sheet, and the adhesive line is adhered so as to cover the score line. The packaging bag of the form was produced, the wet tissue was sealed and packaged, and the rectangular parallelepiped package 1 was produced.
External dimensions of package: height 60 mm x width 80 mm x length 100 mm
The length indicates the direction of the upper end heat bonding portion and the lower end heat bonding portion.
Outside dimensions of the shape-retaining sheet: width 60 mm x length 80 mm
Opening outside dimension: width 20mm x length 45mm long hole-shaped lid label outside dimension: width 40mm x length 80mm (including the length of the knob 10mm)

  The cut line of Example 1 was made into the half cut which penetrates a lamination sheet and half-cuts a shape retention sheet | seat, and produced the same package body as Example 1 except that. The half-cut depth is expressed by measuring the thickness of the non-penetrating portion of the four sides by photographing the cross section of the cut line portion with a microscope, and the thickness of the non-penetrating portion of the shape-retaining sheet is 1 to 2 μm. It was.

  The half cut depth of Example 2 was changed, and the thickness of the non-penetrating part of the shape-retaining sheet was set to 2 to 3 μm.

  The half-cut depth of Example 2 was changed, and the thickness of the non-penetrating part of the shape-retaining sheet was 4 to 5 μm.

  When the package produced in Example 1 and Example 2 is stored for 7 days in an environment at a temperature of 25 ° C. and a humidity of 50%, the cover label is picked and pulled toward the top heat-bonded part of the packaging bag. The lid label is peeled from the shape-retaining sheet, and when the cut line is reached, the laminated sheet and the shape-retaining sheet of the planned opening portion are cut along the cut line, and the cut piece is integrated with the cover label. Was formed, and an outlet was formed on the upper surface of the packaging bag. Moreover, there was no laminated sheet at the opening edge of the outlet, and it was beautiful. In Examples 2 and 3, similarly to Example 1, the take-out port could be easily formed on the upper surface of the packaging bag by pulling up the lid label. Example 4 required more force to pull up the lid label than Examples 2 and 3, but was able to form an outlet on the upper surface of the packaging bag.

It is a perspective view which shows one Embodiment of the package concerning this invention. It is sectional drawing of the AA line of FIG. It is a perspective view which shows the unsealed state of the cover label of the package concerning this invention. It is sectional drawing equivalent to the AA line of FIG. 1 which shows other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Package 2 Packaging bag 3 Shape retention sheet 4 Lid label 5, 5 'Cut line 6 Opening planned part 7 Contents 8 Outlet 20 Laminated sheet 21 Upper end heat bonding part 22 Lower end heat bonding part 23 Gusset part 40 Pick part 41 Cutting blade 42 Lid base material layer 43 Adhesive layer 60 Cut piece

Claims (2)

A packaging bag formed of a soft laminated sheet mainly composed of a synthetic resin for hermetically wrapping the contents, and a mold retaining sheet harder than the laminated sheet fixed to the outer surface thereof;
A package having a lid label that is provided with a releasable and re-adhesive pressure-sensitive adhesive layer on one surface of a lid base material layer and adhered to the shape-retaining sheet by bringing the pressure-sensitive adhesive layer surface into contact therewith. ,
It is formed so that the cut line is closed to the laminated sheet and the shape-retaining sheet in the region where the lid label is adhered,
The lid label is provided so as to be openable and closable so that it can be peeled from the shape-retaining sheet in a portion excluding the planned opening portion surrounded by the cut line, and the peeled portion can be reattached. A package characterized in that 2. The cut line according to claim 1, wherein the cut line is a half cut that penetrates through the laminated sheet from the laminated sheet side toward the shape-retaining sheet side and half-pulls the shape-retaining sheet. Packaging body.

Images