JP5262222B2 - Packaging container - Google Patents

Description

  In the present invention, a sealing seal in which a heat-adhesive resin layer is provided on one surface of a sealing base material layer is pasted on the inner surface side of the outlet of the container body, and on one surface of the lid base material layer Regarding the packaging container in which the pressure-sensitive adhesive layer surface of the lid label provided with the re-peelable and re-adhesive pressure-sensitive adhesive layer is attached to the outer surface side of the outlet, in particular, the lid label is configured to be openable and closable. The present invention relates to a packaging container in which contents can be taken out by repeatedly opening and closing a take-out port of a container body.

  Conventionally, as a container for storing, for example, a wet tissue, a label for an opening / closing lid having a pressure-sensitive adhesive layer is pasted on the outlet of the container body, and the contents are taken out by repeatedly opening and closing the outlet. A packaging container is used.

  In such a packaging container, there is a sheet having a surface exposed on the contents so that the contents and the pressure-sensitive adhesive layer provided on the lid label do not contact and adhere to each other. A packaging container is known that is provided so that the exit surface is positioned on the pressure-sensitive adhesive layer side (see, for example, Patent Document 1). In addition, when a napkin-like product impregnated with a wetting agent is stocked and stored until it is marketed, water droplets on the pressure-sensitive adhesive layer of the opening / closing flap (lid for lid) adhere to the surface, resulting in airtightness due to poor adhesion of the lid label In order to prevent deterioration of the performance, in a storage container having a cover label coated with a pressure sensitive adhesive at the outlet provided on the top surface of the container, an airtight cover is provided on the upper surface of the napkin-like product impregnated with a wetting agent. -An outlet for a container on which a film is placed is known (for example, see Patent Document 2).

However, in recent years, with the diversification of products, wet tissues and the like with a large amount of chemicals such as alcohol to be impregnated have been commercialized, and in the case of these products, the techniques disclosed in Patent Documents 1 and 2 are used for lids. A weak adhesive that can be re-removed and re-adhered is used on the back side of the lid label so that the label can be opened and closed freely. Occasionally, a gap is sometimes formed between the lid label and the peripheral edge of the takeout port, and the alcohol component penetrates from the gap, and the lid label is rarely peeled off naturally during product storage. There's a problem.
JP 2001-270547 A Utility Model Registration No. 3080703

  Therefore, the present invention has been made to solve the above problems, and the object of the present invention is to provide a lid label provided with an adhesive layer that can be re-removed and re-adhered on the outer surface side of the outlet of the container body. It is a packaging container that can freely open and close the take-out port to take out contents such as wet tissue by sticking, and by sticking a sealing seal on the inner surface side of the take-out port of the container body, An object of the present invention is to provide a packaging container in which the lid label does not peel off naturally during product storage.

In order to achieve the above object, the present invention provides a sealing body in which a container body having a take-out port and a heat-adhesive resin layer provided on one surface of a sealing base material layer are provided. And a lid label provided with a releasable and re-adhesive pressure-sensitive adhesive layer on one surface of the base material layer for the lid, and the heat-adhesive resin layer surface of the sealing seal is an inner surface of the outlet And the sealing seal is attached so as to cover the take-out port, and the pressure-sensitive adhesive layer surface of the lid label is brought into contact with the outer surface side of the take-out port so that the lid label A packaging container covering and sticking out the outlet, wherein the lid label is fixed to the container body by the pressure-sensitive adhesive layer, and the sealing seal has at least an opening for a region facing the outlet. score line is applied only to the sealing base material layer, wherein the cover And peelable between the container body from the one end of the label, a packaging container, characterized in that the stripping part is openably configured to be re-adhesion.

According to a second aspect of the present invention, there is provided the packaging container according to the first aspect, wherein the container main body and the sealing seal molded with injection-molded resin are molded and the sealing seal is affixed to the container main body at the same time. It is characterized by being worn .

The packaging container of the present invention includes a container body having a take-out port, a sealing seal in which a heat-adhesive resin layer is provided on one surface of the sealing base material layer, and a sealing material on one surface of the lid base material layer. The cover label is provided with a pressure-sensitive adhesive layer that can be peeled and re-adhered, so that the heat-adhesive resin layer surface of the sealing seal is brought into contact with the inner surface side of the extraction port so that the sealing seal covers the extraction port. A packaging container in which the adhesive layer surface of the lid label is brought into contact with the outer surface side of the outlet and the lid label covers and covers the outlet, and the lid label is the adhesive layer. Is fixed to the container body, and at least a score line for opening is applied only to the sealing base material layer in a region facing the take-out opening of the sealing seal , and between the container body from one end of the lid label. It can be peeled and can be opened and closed so that the peeled part can be re-bonded Thus, the sealing seal along the cut line for opening is formed by pushing the sealing seal exposed by peeling between the container main body and the sealing seal from one end of the lid label into the inner surface of the container main body. Is opened, and the contents can be easily taken out through the outlet of the container body .

Furthermore, since the sealing seal is adhered to the container body by the heat-adhesive resin layer provided on the sealing seal, the cut line is provided only on the sealing base material layer. And the like . This prevents the chemical solution contained in the liquid from penetrating into the lid label side and prevents the lid label from spontaneously peeling during product storage .

The above-described present invention will be described below with reference to the drawings.
1 is a perspective view showing an embodiment of a packaging container according to the present invention, FIG. 2 is a sectional view taken along line XX of FIG. 1, FIG. 3 is an exploded view showing a lid portion of the packaging container according to the present invention, and FIG. 3 is a cross-sectional view taken along line YY of FIG. 3, in which 1 is a packaging container, 2 is a container body, 3 is a seal for sealing, 4 is a label for a lid, 5 is a content, 6 is a sealing material, 7 Is a lid part, 20 is a take-out port, 21 is an upper wall, 22 is a peripheral wall, 23 is a flange part, 30 is a base material layer for sealing, 31 is a heat-adhesive resin layer, 32 is a score line, 40 is a base material for lids Reference numeral 41 denotes a pressure-sensitive adhesive layer, 42 denotes a knob, 43 denotes a cutting blade, and A denotes a region facing the take-out port.

FIG. 1 is a perspective view showing an embodiment of a packaging container according to the present invention, and FIG. 2 is a sectional view taken along line XX of FIG. As shown in FIGS. 1 and 2, the packaging container 1 has a thermoadhesive resin layer 31 on the inner surface side of the ejection port 20 of the injection-molded synthetic resin container body 2 and on one surface of the sealing substrate layer 30. The surface of the heat-adhesive resin layer 31 of the sealing seal 3 provided with a contact is brought into contact with the sealing seal 3 so as to cover the take-out port 20. The lid label is formed by bringing the pressure-sensitive adhesive layer 41 surface of the lid label 4 provided with the pressure-sensitive adhesive layer 41 on one surface of the lid base layer 40 into contact with the outer surface side of the outlet 20. 4 is attached to the heat-adhesive resin layer 31 of the sealing seal 3 that covers the take-out port 20 and opposes the take-out port 20. The lid label 4 has a rectangular shape and is provided with a knob 42 extending outwardly on one end side. When the knob 42 is picked and peeled from the lid label 4, the cutting blades 43, 43 serve as stoppers for preventing the lid label 4 from being completely separated from the container body 2 in the peeling direction. It is provided from both ends. In addition, the surface of the lid label 4 is printed with a picture, characters, a symbol indicating the peeling direction, and the like.

  As shown in FIG. 2, the packaging container 1 includes an upper wall 21 having a flat plate-like projecting portion having a window portion serving as a take-out port 20, a peripheral wall 22 provided to be connected to the periphery of the upper wall 21, A sealing seal 3 is pasted on the inner surface side of the take-out port 20 (see FIG. 1) of the container main body 2 composed of a flange 23 provided on the free peripheral edge of the peripheral wall 22, and a lid label 4 is pasted on the outer surface side. The adhesive body 41 is fixed to the thermoadhesive resin layer 31 of the container body 2 and the sealing seal 3 by the adhesive layer 41, covers the take-out port 20, and the contents 5, for example, wet, from the flange portion 23 side of the container body 2 A predetermined number of tissues are placed, and thus the sealing material 6 is thermally bonded to the flange portion 23 of the container body 2 and sealed. 1 and 2 show the packaging container 1 manufactured in this manner in use, that is, a state where the lid label 4 is placed on the upper side.

  FIG. 3 is an exploded view showing the lid portion 7 of the packaging container 1 according to the present invention, and FIG. 4 is a cross-sectional view taken along the line YY of FIG. 3, and the configuration of the sealing seal 3 will be described by extracting only the sealing seal. FIG. As shown in FIGS. 3 and 4, the sealing base material layer 30 of the sealing seal 3 is provided with a score line 32 for opening in a region A facing the take-out port 20. The cut line 32 may be provided at least in the area A facing the take-out port, but may be provided outside the area A. The score line 32 is preferably a score line penetrating the sealing substrate layer 30. In the half cut, as will be described later, the openability of the sealing seal is inferior. The cut line 32 may preferably be a continuous cut, but may be an intermittent cut perforation. In the case of a perforation, a cut having a length of 2.0 mm to 5.0 mm and a non-cut having a length of 1.5 mm or less are preferable. With such a configuration, as will be described later, the portion of the cut line 32 of the sealing seal 3 exposed by peeling between the container body 2 and the sealing seal 3 from the knob 42 of the lid label 4 is exposed to the container. When pushed into the inner surface side of the main body 2, the sealing seal 3 can be easily opened along the cut line 32, and the contents can be easily taken out through the take-out port 20 of the container main body 2. Further, it is preferable to provide the knob 42 in order to facilitate the peeling of the lid label 4. Furthermore, the knob 42 may be configured such that the pressure-sensitive adhesive layer 41 is not provided on the surface facing the container body 2 or a shielding layer that invalidates the adhesive property of the pressure-sensitive adhesive layer 41 is formed. The lid portion 7 refers to a portion including the take-out port 20, the region including the upper wall 21 of the container body 2, the sealing seal 3, and the lid label 4.

  Next, each material which comprises the packaging container 1 of this invention is demonstrated. First, as a base material used for the sealing base material layer 30 of the sealing seal 3, stretched or unstretched plastic films such as polyethylene terephthalate, nylon, 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 a plastic film subjected to vapor deposition can be used.

  As the heat-adhesive resin layer 31 provided on one surface of the sealing substrate layer 30, a resin such as polyethylene, ethylene / vinyl acetate copolymer, ionomer, polypropylene, or acid-modified polyolefin may be used as a film. Used for extrusion lamination. The resin used for the thermoadhesive resin layer 31 may be appropriately selected depending on the resin used for the container body 2. The sealing substrate layer 30 and the heat-adhesive resin layer 31 are laminated by a known technique such as a dry lamination method or an extrusion lamination method to form a laminated material for the sealing seal 3. The cut line 32 applied to the sealing base material layer 30 of the sealing seal 3 is predetermined by a punching machine equipped with a die roll having a predetermined shape and an anvil roll before being laminated with the thermoadhesive resin layer 31. Should be applied to the position. Alternatively, it can be applied after lamination.

  Next, as the lid base material layer 40 of the lid label 4, a material having printability and mechanical strength is used, and the material used for the sealing base material layer 30, or paper or the like is used. A laminate or the like appropriately combined can be used. Moreover, you may provide surface protection layers, such as a polypropylene film, in order to protect the printing surface provided on the base material layer 40 for lid | covers, and surface glossiness provision.

  As the pressure-sensitive adhesive layer 41 provided on one surface of the lid base material layer 40, a re-peelable and re-adhesive pressure-sensitive adhesive is used, and terpene is applied to natural rubber latex, synthetic rubber latex, acrylic resin, rubber resin, or the like. Select appropriately from conventionally used adhesives such as synthetic resins blended with tackifiers such as resin and rosin, and by well-known application methods such as gravure coating method, roll coating method, heating melt extrusion method etc. It is formed by coating.

  The container body 2 is not particularly limited as long as it is a synthetic resin that can be injection-molded. Polypropylene, polyethylene, polystyrene, ABS, polycarbonate, and the like are appropriately used. Further, the sealing seal 3 is placed in a molding die by in-mold molding, and the sealing seal 3 cut to a predetermined size in the process of injection molding the container body 2 is attached to the take-out port 20. Is done. As another method, the sealing seal 3 is heat-sealed and adhered by bringing the surface of the heat-adhesive resin layer 31 of the sealing seal 3 into contact with the inner surface of the outlet 20 of the container body 2 after injection molding. You can also.

  The sealing material 6 is not particularly limited as long as it has a thermal adhesive resin layer that can be thermally bonded to the container body 2 on at least one exposed surface, and has a printability and mechanical strength. For example, if the container main body 2 is made of polypropylene, it may be exemplified by a biaxially stretched polyester film / printing layer / adhesive layer / aluminum foil / adhesive layer / unstretched polypropylene film. it can.

  Next, a method for opening and closing the lid portion 7 of the packaging container 1 will be described. As shown in FIGS. 1 and 2, the knob 42 of the lid label 4 is picked and pulled up toward the other end facing the knob 42, and the thermoadhesive resin for the container body 2 and the sealing seal 3. If it peels between the layers 31, peeling will be stopped in the part of the cutting blade 43, and the sealing seal 3 stuck to the inner surface side of the taking-out port 20 will be exposed. When the finger is brought into contact with the exposed cut line 32 of the sealing seal 3 and pushed into the inner surface of the container body 2, the sealing seal 3 can be easily torn along the cut line 32, and the container body 2 is taken out. The wet tissue as the contents can be easily taken out through the mouth 20. After the required number of sheets has been taken out, the lid label 4 that has been opened is returned to its original position, and the adhesive layer 41 allows it to be re-adhered to the container body 2 so that it can be closed.

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

<Production of sealing seal>
Using a transparent polyester film (PET) with a thickness of 25 μm as the base material layer for sealing, the phototube mark is gravure printed with urethane ink on one side, and aligned with the phototube mark with a punching die equipped with a predetermined cutting edge. A score line was made at a predetermined position. After that, a polyester polyol / isocyanate two-component dry laminating adhesive is coated on the printing surface, and a 20 μm thick transparent polypropylene film is laminated on the heat-adhesive resin layer by a dry lamination method for sealing seals. A laminated material was obtained. Next, the laminated material was cut, punched to a predetermined size, and a sealing seal 3 as shown in FIG. 2 was produced. The cut line was perforated with a cut of 3.0 mm and a non-cut of 1.0 mm so as to be positioned in the center of the sealing seal parallel to the long side of the outlet.

<Preparation of label for lid>
Next, a weak adhesive acrylic pressure-sensitive adhesive is coated on one side of a 50 μm thick milk white polyester film (WPET) on the lid label base material to form a pressure-sensitive adhesive layer, and polyethylene is laminated on one side of glassine paper Then, using a base material (trade name: PET50 (A) MW3, manufactured by Lintec Corporation) bonded to the release surface of the release material that has been subjected to a release treatment on the polyethylene surface, a phototube on the WPET surface with a known label printer A predetermined printing is performed with the mark, and a biaxially stretched polypropylene film having a thickness of 20 μm is laminated on the printed surface, and the WPET is placed at a predetermined position by registering with the photoelectric tube mark with a punching die having a predetermined cutting edge shape A cutting blade 43 penetrating is formed, and then a cutting blade other than a sealing seal release material is registered with a phototube mark printed on a WPET surface with a punching die having a predetermined shape. Then, the blank part was peeled off to produce a lid label 4 with a release material as shown in FIG. 2 in a state where the release material was laminated on the pressure-sensitive adhesive layer surface of the sealing seal.

<Production of packaging container>
The prepared sealing seal is placed in a mold, molded in-mold using polypropylene resin as the injection molding resin, and the outer wall is 100mm wide, 120mm long and 50mm high, with the peripheral wall facing slightly downward. A pyramid-shaped container main body shown in FIG. 1 having a sealing seal adhered to the inner surface side of the upper surface outlet and having a flange portion on the lower surface was prepared. Thereafter, the pressure sensitive adhesive layer exposed by peeling the release material is brought into contact with the outer surface side of the outlet of the container main body and fixed to the container main body and the heat-adhesive resin layer 31 of the sealing seal as shown in FIG. A packaging container was prepared. The dimensions of the seal for sealing, the label for lid, and the outlet of the container body are as follows.
Outside dimensions of outlet: 60mm x 45mm
Outside seal size for sealing: 90mm x 67mm (not including knob)
Cut line length: 70 mm
Outside dimensions of lid label: 59mm x 44mm
In addition, the knob | pick part of the label for lid | covers was extended and provided 10 mm outward in the one end part of 90 mm in length, and the score line which divides a knob | pick part in the boundary was formed.

  A commercially available wet tissue is sealed in the packaging container of Example 1 above, and a flange is formed using a sealing material having a structure of biaxially stretched polyester film 20 μm / adhesive layer / aluminum foil 9 μm / adhesive layer / unstretched polypropylene film 20 μm. The part was hermetically sealed. When the lid label side is facing up, the tab of the lid label is picked with a finger, pulled up toward the other end opposite the knob, and the vicinity of the center of the sealing seal is pushed into the inner surface with the finger. The sealing seal could be opened along the score line, and the wet tissue could be easily removed from the outlet.

  Moreover, about the container of Example 1, the chemical | medical solution colored with the dye was inject | poured from the flange part side of the container main body which turned the packaging container lid side down, and the sealing for sealing was made into a dipping state. After standing for a day and observing the state of penetration of the chemical over time, it was satisfactory without any penetration of the chemical. In addition, the mixture which mixed ethanol 40 weight%, water 50 weight%, humectant (ethylene glycol) 9 weight%, additive (surfactant, disinfectant, preservative, PH adjuster, fragrance refreshing agent) 1 weight% The solution was colored with methylene blue to obtain a chemical solution.

It is a perspective view which shows one Embodiment of the packaging container concerning this invention. It is sectional drawing of the XX line of FIG. It is an exploded view which shows the cover part of the packaging container concerning this invention. It is the YY sectional view taken on the line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Packaging container 2 Container main body 3 Seal for sealing 4 Label for lid 5 Contents 6 Sealing material 7 Lid part 20 Outlet port 21 Upper wall 22 Peripheral wall 23 Flange part 30 Base material layer for sealing 31 Thermal adhesive resin layer 32 Cut line 40 Lid base layer 41 Adhesive layer 42 Knob part 43 Cutting edge A Area facing the takeout port

Claims (2)

A container body having a take-out port, a sealing seal provided with a heat-adhesive resin layer on one surface of the sealing base material layer, and a pressure sensitive adhesive that can be re-removed and reattached to one surface of the base material layer for lid A lid label provided with a layer, and the heat-adhesive resin layer surface of the sealing seal is brought into contact with the inner surface side of the outlet, and the sealing seal is pasted so as to cover the outlet And the adhesive layer surface of the lid label is brought into contact with the outer surface side of the take-out port, and the lid label covers and covers the take-out port, and the lid label is An adhesive layer is fixed to the container main body, and at least a score line for opening is applied only to the sealing base material layer in a region facing the take-out port in the sealing seal, and one end portion of the lid label Can be peeled from the container body from the side, and Packaging container, characterized in that the portion is openably configured to be re-adhesion. The packaging container according to claim 1, wherein the sealing body is bonded to the container main body simultaneously with the molding of the container main body and the sealing seal formed of an injection molding resin .

Images