JP2022152522A - Package - Google Patents

Abstract

To provide a package that can be bent and fixed compactly and includes a re-sealing function of easily performing re-sealing work.SOLUTION: A package 101 includes a first edge 131, a second edge 132 facing the first edge 131, and two side parts 133 crossing with the first edge 131 and the second edge 132. The package 101 includes a first hook-and-loop fastener 180A extending in a direction crossing with the two side parts 133 and arranged at a position close to the first edge 131, and a second hook-and-loop fastener 180B extending in a direction crossing with the two side parts 133 and arranged in a surface in the same side as the first hook-and-loop fastener 180A. The first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B are hook-and-loop fasteners in which both fastener surfaces include hook-shaped engagement elements 181.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a packaging container having a resealing function.

In recent years, the demand for packages with a resealing function is increasing due to the increase in the capacity of products and the increase in the number of applications where the contents are used little by little. Japanese Patent Laid-Open No. 2002-100001 discloses a configuration that achieves a resealing function by using a chuck member having a concave-convex fitting portion.

However, a packaging container having a fitting portion on the inner surface of the bag as in Patent Document 1 requires a space for storage because the shape of the bag cannot be changed even if the content decreases with use. It is sufficient if the packaging container can be folded and fixed compactly. However, it is difficult for people who are clumsy with their hands to reseal the package.

JP 2017-77916 A

SUMMARY OF THE INVENTION An object of the present invention is to provide a packaging container having a resealing function that allows the packaging container to be folded and fixed compactly, and that can be easily resealed.

The present invention solves the above problems by means of the following solutions. In order to facilitate understanding, reference numerals corresponding to the embodiments of the present invention are used for explanation, but the present invention is not limited to these.

In a first invention, a first edge (131), a second edge (132) facing the first edge (131), and the first edge (131) and the second edge (132) intersect A packaging container (101, 101B) having two side portions (133), extending in a direction intersecting the two side portions (133) and positioned near the first edge (131) A first hook-and-loop fastener (180A) to be arranged, and a second hook-and-loop fastener extending in a direction crossing the two side portions (133) and arranged on the surface on the same side as the first hook-and-loop fastener (180A). (180B), wherein the first hook-and-loop fastener (180A) and the second hook-and-loop fastener (180B) are hook-and-loop fasteners (180A, 180B) in which both fastener faces include hook-shaped engaging elements (181). It is a certain packaging container (101, 101B).

A second invention is the packaging container (101B) according to the first invention, wherein the first packaging material part (121) and the first packaging material part (121) are arranged to face the first packaging material part (121). a second packaging material part (122) having an inner surface exposed part (122a) whose inner surface side is exposed to the outside without facing the part (121), wherein the inner surface exposed part of the first packaging material part (121) An opening (OP) is formed in the edge on the (122a) side, the first hook-and-loop fastener (180A) is provided in the inner exposed portion (122a), and the second hook-and-loop fastener (180B) is A packaging container (101) characterized by being provided in the first packaging material part (121).

A third aspect of the present invention is the packaging container (101B) according to the first aspect, wherein and a portion (122), wherein the first hook-and-loop fastener (180A) and the second hook-and-loop fastener (180B) are provided on the first packaging material portion (121), and the second hook-and-loop fastener (180B ) is provided at a position further from the first edge (131) than the first hook-and-loop fastener (180A).

A fourth invention is the packaging container (101, 101B) according to any one of the first invention to the third invention, wherein the widths of the first hook-and-loop fastener (180A) and the second hook-and-loop fastener (180B) are is 5 mm or more.

A fifth invention is the packaging container (101, 101B) according to any one of the first invention to the fourth invention,
The packaging container (101, 101B) is characterized in that the width of the first hook-and-loop fastener (180A and the second hook-and-loop fastener (180B) is 30 mm or less.

A sixth invention is the packaging container (101B) according to any one of the first to fifth inventions, wherein the first hook-and-loop fastener (180A) and the second hook-and-loop fastener (180B) have a fastener surface The packaging container (101B) is characterized in that a plurality of columnar engaging elements (182) rising from the base are further arranged.

According to the present invention, it is possible to provide a packaging container having a resealing function that allows the packaging container to be folded and fixed in a compact manner and that can be easily resealed.

It is a top view of packaging container 101 of a 1st embodiment. FIG. 2 is a cross-sectional view of the packaging container 101 taken along the arrow AA in FIG. 1; 3 is a cross-sectional view of a laminated film 160 used in the packaging container 101 of this embodiment; FIG. It is a perspective view of the 1st hook-and-loop fastener 180A (180B). It is a top view of the 1st hook-and-loop fastener 180A (180B). 6 is a cross-sectional view of the first hook-and-loop fastener 180A (180B) taken along the arrow BB in FIG. 5; FIG. FIG. 6 is a sectional view of the first hook-and-loop fastener 180A (180B) taken along arrows CC in FIG. 5; 4 is a diagram illustrating dimensions of hook-like engaging elements 181 and column-like engaging elements 182 in the form of hook-and-loop fastener A. FIG. FIG. 9 is a diagram showing each dimension of d1 to d11 shown in FIGS. 5 and 8; FIG. FIG. 3 is a perspective view of hook-and-loop fastener tapes 180A (180B) in the form of hook-and-loop fasteners B and C; FIG. 10 is a plan view of hook-and-loop fastener tapes 180A (180B) in the form of hook-and-loop fasteners B and C; FIG. 12 is a cross-sectional view of the hook-and-loop fastener tape 180A (180B) in the form of hook-and-loop fasteners B and C cut at the position of arrows GG in FIG. 11; FIG. 12 is an enlarged cross-sectional view of the hook-and-loop fastener tape 180A (180B) in the form of hook-and-loop fasteners B and C, cut along the arrow HH in FIG. 11; FIG. 14 is a diagram showing dimensions d1 to d10 shown in FIGS. 11 and 13; FIG. It is a figure which shows the state which resealed the packaging container 101. FIG. It is a figure which shows the state which joined the 1st hook-and-loop fastener 180A and the 2nd hook-and-loop fastener 180B. It is a top view of packaging container 101B of a 2nd embodiment. FIG. 18 is a cross-sectional view of the packaging container 101B taken along the arrow DD in FIG. 17; It is a figure which shows the state which opened the packaging container 101B. It is a figure which shows the state which resealed the packaging container 101B. FIG. 3 is a diagram summarizing the results of evaluation of the ease of joining at the time of resealing by preparing samples of multiple types of packaging containers.

BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a plan view of the packaging container 101 of the first embodiment. In addition, in FIG. 1, the sealed area is shown by hatching, and the same is shown in the drawings of other embodiments.
FIG. 2 is a cross-sectional view of the packaging container 101 cut along the arrow AA in FIG.
1 and 2, each figure shown below is a schematic diagram, and the size and shape of each part may be exaggerated or omitted as appropriate for easy understanding. is shown. For example, in FIG. 2, only the base material layer 161 and the sealant layer 164 are illustrated, and other layers are omitted.
Also, in the following description, specific numerical values, shapes, materials, and the like are shown and described, but these can be changed as appropriate.

The packaging container 101 of the present embodiment, for example, is distributed and sold in a state in which various contents are contained, and can be resealed (reclosed) while a part of the contents is taken out and the rest is contained in the container. . Note that the content may be of any type, such as solid, powder, or liquid. Moreover, the packaging container 101 of the present embodiment may be distributed and sold as a single packaging container 101 that does not contain any contents.

(container body)
As shown in FIG. 1, the container body 106 of the packaging container 101 is a bag-like container that is sealed at three sides, the bottom and both sides, and has an opening OP opening upward, and is flexible. It is composed of a laminated film (packaging material) with The laminated film forming the container body 106 includes a surface film (first packaging material) 121 forming a surface and a back film (second packaging material) 122 forming a back surface.

In this embodiment, the surface film 121 and the back film 122 are composed of substantially rectangular laminated films. A substantially rectangular shape is not limited to a geometrical rectangle, and includes a shape recognized as a rectangle in a general view. For example, any one or more of the side edges, the bottom edge or the top edge may include curvilinear portions. Also, the corners of the laminated film may be rounded in an outwardly convex arc shape.

Further, the surface film 121 and the back film 122 may be laminated films that are separate from each other before the formation of the container main body 106, or may be laminated films that are connected to each other. The connected laminated films are folded to form a front film 121 and a back film 122 .

In this embodiment, the container main body 106 is formed of a surface film 121 and a back film 122 which are individually constructed. The surface film 121 is arranged to face and overlap the back surface film 122 except for the upper side. At the upper portion (first edge) 131 of the container main body 106, the surface film 121 does not overlap the back film 122, and an inner exposed portion 122a is provided in which the inner surface of the back film 122 is exposed to the outside. . The opening OP is formed at the edge of the surface film 121 on the inner surface exposed portion 122a side.

At the side portion 133 of the container main body 106, the side portion of the surface film 121 and the side portion of the back film 122 are joined by heat sealing (heat welding). As a result of this bonding, side sealing portions 143 are formed on the left and right side portions 133 of the container main body 106 as sealing portions for bonding the side portions of the surface film 121 and the side portions of the back film 122 .
The left and right side seal portions 143 are formed such that the vicinity of the respective lower ends thereof are continuous with the bottom seal portion 142, which will be described later.

At the bottom (second edge) 132 of the container main body 106, the bottom of the surface film 121 and the bottom of the back film 122 are joined. In this manner, a bottom seal portion 142 is formed on the bottom portion 132 of the container main body portion 106 .
The accommodating portion 102 is a space inside the container main body 106 that can accommodate contents, and is a region surrounded by the side sealing portion 143 and the bottom sealing portion 142 described above.

(Laminated film)
FIG. 3 is a cross-sectional view of the laminated film 160 used for the packaging container 101 of this embodiment.
The surface film 121 and the back film 122 forming the container main body 106 are made of the laminated film 160 . As described above, the container main body 106 is made by heat-sealing the laminated film 160 forming the pair of the surface film 121 and the back surface film 122 . For this reason, the laminated film 160 is provided with at least a base layer 161 and a sealant layer 164 having a sealing property on a portion to be the inner side of the container. Moreover, a plurality of substrate layers may be provided, and the sealant layer may be composed of a plurality of layers.
In the container main body 106 of the present embodiment, the base material layer 161 serving as a printing base material is provided on the outer side of the container with respect to the sealant layer 164 . Note that the laminated film 160 may include other layers 163 as necessary to impart various functions depending on the application.

The substrate layer 161 may be, for example, an oriented polyethylene terephthalate film, a silica-deposited oriented polyethylene terephthalate (PET) film, an alumina-deposited oriented polyethylene terephthalate film, an oriented polyamide film, an oriented polypropylene film, or a composite obtained by laminating two or more of these films. A film can be used.

Preferably, the substrate layer 161 is biaxially stretched. As a result, the molecules forming the base layer 161 are aligned in the drawing direction by the drawing treatment, and the base layer 161 exhibits excellent dimensional stability. In addition, the biaxial stretching process can impart an easy-open property to the base material layer 161 .

The thickness of such a base layer 161 is, for example, about 10 to 50 μm. In this case, the product cost can be suppressed while satisfying the heat resistance required for the container main body 106 . Note that the base material layer 161 of the present embodiment also functions as the outermost layer of the laminated film 160 when the container main body 106 is formed by making the bag.

Further, as shown in FIG. 3, in the present embodiment, a pattern layer 162 including a pattern is laminated on the surface of the base material layer 161 that faces the inside of the container. Here, the pattern is a recording object of various forms that can be recorded or printed on the base material layer 161, and is not particularly limited, and includes drawings, letters, patterns, patterns, symbols, designs, marks, and the like. Including broadly. The picture layer 162 is laminated on the base material layer 161 as necessary, and the picture layer 162 may not be provided on the base material layer 161. In that case, for example, a label may be attached. Various displays may be performed.

In this embodiment, the pattern layer 162 is applied to the inner surface of the base material layer 161, not the outer surface of the base material layer 161, which is the outer side of the container. In this case, since the pattern layer 162 has excellent abrasion resistance, it is possible to effectively prevent disappearance due to rubbing or the like, and to effectively prevent falsification of the pattern. Further, the base layer 161 has transparency so that the design layer 162 laminated on the inner surface of the base layer 161 can be visually recognized through the base layer 161 when the packaging container 101 is formed by making a bag. preferably.

As described above, the sealant layer 164 is provided for laminating and sealing the edges by overlapping the two laminated films 160 and heat-sealing the vicinity of the opposing edges. Further, in the present embodiment, the sealant layer 164 is arranged in the laminated film 160 on the innermost side of the container when the bag is made into the container main body 106 .

As such a sealant layer 164, films made of polyolefin resins such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ethylene-propylene block copolymer, etc., conventionally known easy peel films, and the like can be used. The sealant layer 164 may be configured as a single layer with a film made of these materials, or the sealant layer 164 may be configured as multiple layers.

Further, when the packaging container 101 is used as a container for a microwave oven, heat resistance is required, so the sealant layer 164 is mainly an unstretched polypropylene layer (CPP layer) containing unstretched polypropylene (CPP), or It is preferred to have a linear low density polyethylene layer (LLDPE layer) comprising primarily linear low density polyethylene (LLDPE).

The thickness of the sealant layer 164 is preferably 30 μm or more. Also, the thickness of the sealant layer 164 is preferably 200 μm or less. In this case, the packaging container 101 is excellent in impact resistance against dropping that may occur in the distribution process, and is also excellent in handleability such as easiness of filling and refilling of the contents.

On the other hand, the other layer 163 can be provided to supplement various functions depending on the application, and its arrangement position can be appropriately selected. The other layer 163 may have vapor barrier properties to prevent permeation of water vapor and gas barrier properties to prevent permeation of gases such as oxygen gas so that the contents can be stored for a long period of time. Further, the other layer 163 may have a function of sufficiently enhancing the concealability so that the contents of the packaging container 101 cannot be seen, in order to increase the consumer's willingness to buy. Therefore, the other layer 163 can be exemplified by a gas barrier layer, a light shielding layer, and the like.

Examples of gas barrier layers include metal foils such as aluminum foils, vapor deposition layers, and the like. The vapor deposition layer may be provided on the base material layer or may be provided on the sealant layer.
The vapor deposition layer may be a metal vapor deposition layer consisting of a metal vapor deposition layer such as aluminum, or a transparent vapor deposition layer consisting of an inorganic oxide vapor deposition layer such as aluminum oxide or silicon oxide.

Also, the gas barrier layer may include a vapor deposition layer and an organic coating layer formed on the vapor deposition layer.
The organic coating layer is formed by applying a barrier coating agent onto the deposited film and solidifying it. The barrier coating agent is composed of metal alkoxide, hydroxyl-containing water-soluble resin, optionally added silane coupling agent, sol-gel catalyst, acid, and the like.

The metal alkoxide has the general formula R1 _n M(OR ² ) _m (wherein R ₁ and R ₂ represent an organic group having 1 to 8 carbon atoms, M represents a metal atom, and n is represents an integer of 0 or more, m represents an integer of 1 or more, and n+m represents the valence of M.) at least one metal alkoxide represented by M, the metal atom of the metal alkoxide represented by M Examples thereof include silicon, zirconium, titanium, aluminum, and the like. For example, it is preferable to use an alkoxysilane in which M is Si.

Examples of the above alkoxysilane include those represented by the general formula Si(ORa) ₄ (wherein Ra represents a lower alkyl group). In the above, as Ra, a methyl group, an ethyl group, an n-propyl group, an n-butyl group and the like are used. Specific examples of the above alkoxysilanes include tetramethoxysilane Si(OCH ₃ ) ₄ , tetraethoxysilane Si(OC ₂ H ₅ ) ₄ , tetrapropoxysilane Si(OC ₃ H ₇ ) 4 and tetrabutoxysilane Si. (OC ₄ H ₉ ) ₄ , etc. can be used. The above alkoxides may be used in combination of two or more.

As the silane coupling agent, one having a reactive group such as a vinyl group, an epoxy group, a methacrylic group, an amino group, or the like can be used. Particularly preferred are organoalkoxysilanes having an epoxy group, such as γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropylmethyldimethoxysilane, γ-glycidoxypropyldimethylmethoxysilane, γ-glycidoxysilane. Propyltriethoxysilane, γ-glycidoxypropylmethyldiethoxysilane, γ-glycidoxypropyldimethylethoxysilane, β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, or the like can be used. The above silane coupling agents may be used singly or in combination of two or more.

Among them, the cross-linking density of the cured film of the organic coating layer using bifunctionality such as γ-glycidoxypropylmethyldimethoxysilane and γ-glycidoxypropylmethyldiethoxysilane is higher than that in the system using trialkoxysilane. lower than the crosslink density. Therefore, it becomes a flexible cured film while being excellent as a film with gas barrier properties and hot water treatment, and has excellent flex resistance. Hard to deteriorate.

As the hydroxyl group-containing water-soluble resin, a polyvinyl alcohol resin or an ethylene/vinyl alcohol copolymer can be used alone, or a polyvinyl alcohol resin and an ethylene/vinyl alcohol copolymer can be used in combination. can be used.

As the light shielding layer, a metal foil such as aluminum or a metal deposition layer can be exemplified.
Note that the other layer 163 may be formed by laminating two or more layers of the above functional layers.

The base layer 161 can also be made of paper. When the base material layer 161 is made of paper, the pattern layer 162 may be provided on the outer surface side of the base material layer 161, which is the outer side of the container. A basis weight of paper used for the base material layer 161 is preferably 30 g/m ² or more. Moreover, the basis weight of the paper used for the base material layer 161 is preferably 150 g/m ² or less. Moreover, the basis weight of the paper used for the base material layer 161 is more preferably 130 g/m ² or less. Moreover, the basis weight of the paper used for the base material layer 161 is more preferably 100 g/m ² or less.

As shown in FIG. 3, in the present embodiment, between the substrate layer 161 provided with the pattern layer 162 and the substrate layer 161 provided with the gas barrier layer as the other layer 163, and as the other layer 163 A bonding layer 165 is provided between the base material layer 161 provided with the gas barrier layer and the sealant layer 164 . As this bonding layer 165, for example, an adhesive generally used in a known dry lamination method can be used, for example, a polyvinyl acetate adhesive, a polyacrylic acid ester adhesive, a cyanoacrylate adhesive, or the like. , ethylene copolymer-based adhesives, cellulose-based adhesives, polyester-based adhesives, polyamide-based adhesives, amino resin-based adhesives, epoxy-based adhesives, polyurethane-based adhesives, and the like can be used.

Alternatively, an adhesive resin layer generally used in an extrusion lamination method (sandwich lamination method) can be used as the bonding layer 165 . Thermoplastic resins that can be used for the adhesive resin layer include polyethylene-based resins, polypropylene-based resins, or cyclic polyolefin-based resins, or copolymer resins, modified resins, or mixtures (including alloys) containing these resins as main components. ) can be used. Polyolefin resins include, for example, low density polyethylene (LDPE), medium density polyethylene (MDPE), high density polyethylene (HDPE), linear low density polyethylene (LLDPE), polypropylene (PP), metallocene catalyst Ethylene-α-olefin copolymer, ethylene-polypropylene random or block copolymer, ethylene-vinyl acetate copolymer (EVA), ethylene-acrylic acid copolymer (EAA), ethylene-α-olefin copolymer polymerized using Ethyl acrylate copolymer (EEA), ethylene-methacrylic acid copolymer (EMAA), ethylene-methyl methacrylate copolymer (EMMA), ethylene-maleic acid copolymer, ionomer resin, adhesion between layers In order to improve the above, it is possible to use an acid-modified polyolefin resin obtained by modifying the above polyolefin resin with an unsaturated carboxylic acid such as acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, or itaconic acid. can. Moreover, the resin etc. which graft-polymerized or copolymerized unsaturated carboxylic acid, unsaturated carboxylic acid anhydride, and an ester monomer can be used for polyolefin resin. These materials can be used singly or in combination of two or more. Cyclic polyolefins such as ethylene-propylene copolymers, polymethylpentene, polybutene and polynorbonene can be used as cyclic polyolefin resins. These resins can be used singly or in combination.
In this case, there may be an anchor coat layer (AC layer) between the substrate layer and, for example, an adhesive generally used in a known dry lamination method can be used, such as polyvinyl acetate adhesives, polyacrylate adhesives, cyanoacrylate adhesives, ethylene copolymer adhesives, cellulose adhesives, polyester adhesives, polyamide adhesives, amino resin adhesives, epoxy adhesives , a polyurethane-based adhesive, or the like can be used.

As a preferred embodiment of the laminated film 160, the following layer configurations can be exemplified in order from the substrate layer 161 side.
(A) First substrate layer/sealant layer (B) First substrate layer/second substrate layer/sealant layer (C) First substrate layer/second substrate layer/third substrate layer/sealant As a specific example of the layer laminate film 160, the following layer configurations can be exemplified in order from the outside of the container.
(1) PET thickness 12 μm/inorganic oxide deposition layer/organic coating layer/biaxially stretched polyamide film thickness 15 μm/CPP layer thickness 70 μm
(2) Biaxially stretched polyamide film thickness 15 μm/PET thickness 12 μm/vapor deposition layer of inorganic oxide/organic coating layer/CPP layer thickness 70 μm
(3) PET thickness 12 μm/inorganic oxide deposition layer/organic coating layer/PET thickness 12 μm/CPP layer thickness 70 μm
(4) PET thickness 12 μm/inorganic oxide deposition layer/organic coating layer/PET thickness 12 μm/PET thickness 12 μm/CPP layer thickness 70 μm
(5) PET thickness 12 μm/PET thickness 12 μm/aluminum deposition layer/LLDPE thickness 60 μm

The packaging container 101 of this embodiment includes a first hook-and-loop fastener 180A and a second hook-and-loop fastener 180B to enable resealing of the opening OP.
The first hook-and-loop fastener 180A extends in a direction connecting two sides (side portions 133 on both sides) that intersect with the end on the upper portion 131 side, and is positioned near the upper portion 131 and near the opening OP. It is arranged on the exposed portion 122a.
The second hook-and-loop fastener 180B extends in a direction connecting two sides (side portions 133 on both sides) that intersect with the end portion on the side of the upper portion 131 where the opening OP is provided, and extends on the same side as the first hook-and-loop fastener 180A. is arranged on the surface of the surface film 121 which is the surface of the
In this embodiment, the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B extend parallel to the edge of the upper portion 131 and the edge of the bottom portion 132 . The first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B do not necessarily need to be parallel, and may be arranged with their extending directions forming a predetermined angle.

The first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B can be composed of hook-and-loop fastener tapes. The first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B can be configured by attaching hook-and-loop fastener tapes to the inner side of the back film 122 and the front side of the front film 121 by thermocompression or via an adhesive layer, respectively. A hot-melt adhesive or the like can be considered as the adhesive layer. EVA, polyolefins, synthetic rubbers, polyamides, polyesters, polyurethanes, etc. can be considered as main components of hot-melt adhesives.
Unlike the conventional male-female hook-and-loop fastener tapes, the hook-and-loop fastener tape 180A and the hook-and-loop fastener tape 180B have the same configuration, and the fastener surfaces (engagement surfaces) have different shapes. No difference. Therefore, the hook-and-loop fastener portion 180 configured as described above is configured such that one hook-and-loop fastener itself, that is, the hook-and-loop fastener tape 180A itself or the hook-and-loop fastener tape 180B itself can be folded back and joined. Further, in the present embodiment, the hook-and-loop fastener tape 180A and the hook-and-loop fastener tape 180B are exemplified as having the same configuration. A hook-and-loop fastener may be used. It should be noted that the same configuration as used herein does not refer to completely equal shapes and dimensions, but includes partially missing or deformed parts and different dimensions. Here, the range in which even if the dimensions are different can be regarded as having the same configuration, the dimensional difference is within a range of ±10%, and more preferably, the dimensional difference is within a range of ±5%. be. The dimensions here refer to d3, d4, d5, and d6.

(Velcro fastener A)
In this embodiment, three types of hook-and-loop fasteners A, B, and C are exemplified as specific forms of the hook-and-loop fastener portion 180 .
4 is a perspective view of a hook-and-loop fastener tape 180A (180B) in the form of hook-and-loop fastener A. FIG.
5 is a plan view of a hook-and-loop fastener tape 180A (180B) in the form of hook-and-loop fastener A. FIG.
FIG. 6 is a cross-sectional view of the hook-and-loop fastener tape 180A (180B) in the form of the hook-and-loop fastener A cut along the arrow BB in FIG.
FIG. 7 is a cross-sectional view of the hook-and-loop fastener tape 180A (180B) in the form of the hook-and-loop fastener A cut along the arrows CC in FIG.
4 and 5, the direction indicated by the arrow MD is called the MD (machine direction) direction, and the direction indicated by the arrow TD is called the TD (transverse direction) direction.
The hook-and-loop fastener tape 180A (180B) has a plurality of hook-shaped engaging elements 181 and column-shaped engaging elements 182 arranged on the fastener surface where the two are engaged facing each other.

Preferably, the surface fastener tape 180A (180B) is mainly made of polyethylene. Specifically, it preferably contains 50% by mass or more of polyethylene, more preferably 70% by mass or more, and even more preferably 85% by mass or more.
Polyethylene that can be used for the surface fastener tape 180A (180B) includes HDPE, MDPE, LDPE, LLDPE, etc. LLDPE is preferable from the viewpoint of sealability. The material used for the hook-and-loop tape 180A (180B) may contain a plurality of polyethylenes, or may contain a part of other resin such as polypropylene. ), other types of blending can be performed.

The hook-shaped engaging element 181 has a column portion 181a and an engaging projection portion 181b, which are arranged side by side at regular intervals in the MD direction.
The columnar portion 181a is configured in a columnar shape, rising substantially vertically from the fastener surface of the base portion 183. As shown in FIG. In this embodiment, the columnar portion 181a has a rectangular parallelepiped shape longer in the MD direction than in the TD direction.
The engaging protrusion 181b is provided on the top of the column 181a and protrudes in a direction intersecting the rising direction of the column. In this embodiment, the engaging protrusion 181b protrudes in the TD direction, but may also protrude in the MD direction.
Further, the hook-shaped engaging elements 181 are arranged in a large number of rows with the column-shaped engaging elements 182 sandwiched therebetween, and the positions of the hook-shaped engaging elements 181 in the MD direction in each row are intentionally irregular. is shifted. The hook-shaped engaging element 181 can be freely inserted into and removed from the gap between the other hook-shaped engaging elements 181 when the hook-and-loop fastener is joined. Joining is performed.

The columnar engagement elements 182 are columnar and stand up from the fastener surface, and are arranged side by side at regular intervals in the MD direction. The columnar engaging element 182 of this embodiment has a rectangular parallelepiped shape longer in the MD direction than in the TD direction.
In addition, the columnar engaging elements 182 are arranged in multiple rows with the hook-like engaging elements 181 interposed therebetween, and the positions of the columnar engaging elements 182 in each row in the MD direction are intentionally irregular. staggered.

8A and 8B are diagrams for explaining the dimensions of the hook-like engaging element 181 and the column-like engaging element 182 in the form of the hook-and-loop fastener A. FIG. FIG. 8 corresponds to an enlarged cross-section of FIG.
FIG. 9 is a diagram showing dimensions d1 to d11 shown in FIGS. 5 and 8. FIG.
The columns of dimension examples in FIG. 9 show the measured values of the hook-and-loop fastener tapes 180A and 180B, and the column of preferred dimension ranges shows the preferable dimension ranges that can be suitably used in the present invention.

Preferred dimensions of each part in the form of the hook-and-loop fastener A will be collectively described below.
The height d1 of the hook-shaped engaging element 181 is desirably 300 μm or more. Also, the height d1 of the hook-shaped engaging element 181 is desirably 700 μm or less.
The height d1 of the columnar engaging element 182 is desirably 300 μm or more. Also, the height d1 of the columnar engaging element 182 is preferably 700 μm or less.
The MD-direction length d2 of the hook-shaped engaging element 181 is desirably 500 μm or more. Further, the length d2 in the MD direction of the hook-shaped engaging element 181 is desirably 700 μm or less. This is because if the length is shorter than the above range, the fitting strength will be weak, and if it is longer, the fitting strength will be too strong and the risk of the projection falling off will increase.
It is desirable that the length d2 in the MD direction of the columnar engaging element 182 is 100 μm or more. Also, the length d2 in the MD direction of the columnar engaging element 182 is preferably 300 μm or less.

The TD-direction width d3 of the column portion 181a of the hook-shaped engaging element 181 is desirably 100 μm or more. Further, the TD direction width d3 of the column portion 181a of the hook-shaped engaging element 181 is preferably 350 μm or less.
The width d3 in the TD direction of the columnar engagement element 182 is desirably 100 μm or more. Moreover, it is desirable that the width d3 in the TD direction of the columnar engaging element 182 is 350 μm or less.
The total width d4 in the TD direction of the hook-shaped engaging element 181 is desirably 300 μm or more. Moreover, the TD direction width d4 of the hook-shaped engaging element 181 is preferably 950 μm or less.

The TD direction protrusion width d5 of the engaging protrusion 181b is desirably 100 μm or more. Moreover, it is desirable that the protrusion width d5 in the TD direction of the engaging protrusion 181b is 300 μm or less. This is because if the width is narrower than the above range, the fitting strength becomes weak, and if it is too wide, the risk of the projection falling off increases.
The return angle d6 of the engaging protrusion 181b is preferably 45° or more. Moreover, it is desirable that the return angle d6 of the engaging protrusion 181b is 90° or less. This is because if the size is too small, the strength of the fitting is increased and the fitting is likely to come off, and if the size is too large, the fitting cannot be performed. Note that FIG. 8(a) shows the case of d6=90° shown in FIGS. 4 to 7, and FIG. 8(b) shows a modified form in which d6 is less than 90°. .

The total thickness d7 of the hook-and-loop fastener tape is desirably 400 μm or more. Moreover, the total thickness d7 of the hook-and-loop fastener tape is desirably 700 μm or less.
The MD-direction interval d8 of the hook-shaped engaging elements 181 is desirably 100 μm or more. Moreover, it is desirable that the MD direction width interval d8 of the hook-shaped engaging elements 181 is 500 μm or less.
The MD-direction interval d8 of the columnar engaging elements 182 is desirably 100 μm or more. Moreover, it is desirable that the MD-direction width interval d8 of the columnar engaging elements 182 is 500 μm or less.

Both the TD-direction interval d9 between the hook-like engaging elements 181 and the TD-direction interval d9 between the columnar engaging elements 182 are preferably 500 μm or more. Moreover, both the TD-direction interval d9 between the hook-like engaging elements 181 and the TD-direction interval d9 between the columnar engaging elements 182 are preferably 1000 μm or less. If the TD-direction spacing d9 of the hook-like engaging elements 181 and the TD-direction spacing d9 of the column-like engaging elements 182 are smaller than the above range, the elements become dense, and if they are larger than the above ranges, the elements become sparse and fitting becomes difficult. is.

The thickness d10 of the base portion 183 is preferably 50 μm or more, more preferably 100 μm or more. Also, the thickness d10 of the base portion 183 is preferably 500 μm or less, more preferably 400 μm or less, and even more preferably 300 μm or less. This is because if the thickness d10 of the base portion 183 is thin, the amount of resin is small and adhesion (bonding) as a hook-and-loop fastener is not possible, and if the thickness d10 is thick, the amount of resin is large and it becomes difficult to cut during the bag making process.
Moreover, it is desirable that the TD direction width of the surface fastener tape 180A (180B) is 5 mm or more. Moreover, it is desirable that the width of the hook-and-loop fastener tape 180A (180B) in the TD direction is 30 mm or less. If the width is smaller than the above range, the amount of resin is too small to achieve close contact (bonding) as a hook-and-loop fastener.

A TD-direction interval d11 between the column portion 181a of the hook-shaped engaging element 181 and the column-shaped engaging element 182 is preferably 300 μm or more. Moreover, the TD direction interval d11 between the column portion 181a of the hook-shaped engaging element 181 and the column-shaped engaging element 182 is preferably 500 μm or less. This is because if the TD direction interval d11 between the column portion 181a of the hook-shaped engaging element 181 and the columnar engaging element 182 is smaller than the above range, the elements become dense, and if it is large, the elements become sparse and fitting becomes difficult. .
The hook-and-loop fastener tape having the hook-shaped engaging elements and the column-shaped engaging elements described above is also called a hook-and-loop fastener A.

(Velcro fastener B, C)
The hook-and-loop fastener A described above has hook-shaped engaging elements and column-shaped engaging elements. A hook-and-loop fastener tape having only engaging elements) was prepared. Further, regarding the hook-and-loop fastener tape having only this hook-shaped engaging element, the main material is PE (hereinafter also referred to as hook-and-loop fastener B), and the hook-and-loop fastener tape as the main material is PP (hereinafter also referred to as hook-and-loop fastener C). ) were prepared.
FIG. 10 is a perspective view of a hook-and-loop fastener tape 180A (180B) in the form of hook-and-loop fasteners B and C. FIG.
FIG. 11 is a plan view of a hook-and-loop fastener tape 180A (180B) in the form of hook-and-loop fasteners B and C. FIG.
FIG. 12 is a cross-sectional view of the hook-and-loop fastener tape 180A (180B) in the form of hook-and-loop fasteners B and C cut along the arrows GG in FIG.
FIG. 13 is an enlarged cross-sectional view of the hook-and-loop fastener tape 180A (180B) in the form of hook-and-loop fasteners B and C cut along the arrow HH in FIG.
FIG. 14 is a diagram showing dimensions d1 to d10 shown in FIGS. 11 and 13. FIG.
14 shows measured values of the hook-and-loop fastener tapes 180A and 180B, and the preferred dimension range column shows a preferable dimension range that can be suitably used in the present invention.

Preferred dimensions of each part in the form of hook-and-loop fasteners B and C will be collectively described below.
The height d1 of the hook-shaped engaging element 181 is desirably 300 μm or more. Also, the height d1 of the hook-shaped engaging element 181 is desirably 700 μm or less.
The MD-direction length d2 of the hook-shaped engaging element 181 is desirably 500 μm or more. Further, the length d2 in the MD direction of the hook-shaped engaging element 181 is desirably 700 μm or less. This is because if the length is shorter than the above range, the fitting strength will be weak, and if it is longer, the fitting strength will be too strong and the risk of the projection falling off will increase.

The TD-direction width d3 of the column portion 181a of the hook-shaped engaging element 181 is desirably 100 μm or more. Further, the TD direction width d3 of the column portion 181a of the hook-shaped engaging element 181 is preferably 350 μm or less.
The total width d4 in the TD direction of the hook-shaped engaging element 181 is desirably 300 μm or more. Moreover, the TD direction width d4 of the hook-shaped engaging element 181 is preferably 950 μm or less.

The TD direction protrusion width d5 of the engaging protrusion 181b is desirably 100 μm or more. Moreover, it is desirable that the protrusion width d5 in the TD direction of the engaging protrusion 181b is 300 μm or less. This is because if the width is narrower than the above range, the fitting strength becomes weak, and if it is too wide, the risk of the projection falling off increases.
The return angle d6 of the engaging protrusion 181b is preferably 45° or more. Moreover, it is desirable that the return angle d6 of the engaging protrusion 181b is 90° or less. This is because if the size is too small, the strength of the fitting is increased and the fitting is likely to come off, and if the size is too large, the fitting cannot be performed. Note that FIG. 13(a) shows the case of d6=90° shown in FIGS. 10 to 12, and FIG. 13(b) shows a modified form in which d6 is less than 90°. .

The total thickness d7 of the hook-and-loop fastener tape is desirably 400 μm or more. Further, the total thickness d7 of the hook-and-loop fastener tape is desirably 1200 μm or less.
The MD-direction interval d8 of the hook-shaped engaging elements 181 is desirably 100 μm or more. Moreover, it is desirable that the MD direction width interval d8 of the hook-shaped engaging elements 181 is 500 μm or less.

A TD-direction interval d9 between the hook-shaped engaging elements 181 is desirably 250 μm or more. Moreover, the TD direction interval d9 between the hook-shaped engaging elements 181 is desirably 500 μm or less. This is because if the TD direction interval d9 of the hook-shaped engaging elements 181 is smaller than the above range, the elements will be dense, and if it is larger, the elements will be sparse and fitting will be difficult.

The thickness d10 of the base portion 183 is preferably 50 μm or more, more preferably 100 μm or more. Also, the thickness d10 of the base portion 183 is preferably 500 μm or less, more preferably 400 μm or less, and even more preferably 300 μm or less. This is because if the thickness d10 of the base portion 183 is thin, the amount of resin is small and adhesion (bonding) as a hook-and-loop fastener is not possible, and if the thickness d10 is thick, the amount of resin is large and it becomes difficult to cut during the bag making process.
Moreover, it is desirable that the TD direction width of the surface fastener tape 180A (180B) is 5 mm or more. Moreover, it is desirable that the width of the hook-and-loop fastener tape 180A (180B) in the TD direction is 30 mm or less. If the width is smaller than the above range, the amount of resin is too small to achieve close contact (bonding) as a hook-and-loop fastener.

For any of the hook-and-loop fasteners A, B, and C described above, the joint strength at the time of joining is the highest when the TD and MD directions of both hook-and-loop fasteners to be joined match. However, for example, the TD direction of one hook-and-loop fastener and the TD direction of the other hook-and-loop fastener may intersect at a predetermined angle (eg, 30°, 45°, 90°, etc.). Even in such a case, the provision of the engaging protrusions 181b of the hook-shaped engaging elements 181 enables joining, and the function of the hook-and-loop fastener can be fully exhibited.

The packaging container 101 configured as described above may be shipped, for example, with the contents (not shown) stored in the storage part 102, or may be shipped with the packaging container 101 alone without containing the contents. In addition, when the contents are stored in the storage portion 102 and shipped, they can be sealed in the same manner as the resealed state described later.

FIG. 15 is a diagram showing a state in which the packaging container 101 is resealed.
FIG. 16 is a diagram showing a state in which the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B are joined.
When it is desired to take out a part of the contents from the storage section 102 of the packaging container 101 and store the rest, or when it is desired to store the contents after newly storing them in the storage section 102, the first hook-and-loop fastener 180A and the It is possible to fold the packaging container 101 at a position between the second hook-and-loop fastener 180B and reseal the packaging container 101 using the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B. At this time, the hook-shaped engaging element 181 on one side is inserted into the gap between the hook-shaped engaging element 181 on the other side or the column-shaped engaging element 182, and the engaging elements are brought into contact with each other for fitting. The first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B are joined with an appropriate strength. Also, by peeling off the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B, the connection between the two can be easily released, and the package can be opened again.
With conventional resealable packaging containers using zipper tape, it is necessary to precisely match the positions of the male and female engaging parts and join them together. It was. However, in the packaging container 101 of the present embodiment, the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B of the same shape are used without distinction between male and female. and can be done reliably.

(Second embodiment)
FIG. 17 is a plan view of the packaging container 101B of the second embodiment.
FIG. 18 is a cross-sectional view of the packaging container 101B taken along arrows DD in FIG.
The packaging container 101B of the second embodiment is the same as that of the first embodiment, except that it is sealed up to the top and the arrangement of the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B is different. Therefore, portions that perform the same functions as those of the above-described first embodiment are denoted by the same reference numerals, and overlapping descriptions are appropriately omitted.

For example, the packaging container 101B of the present embodiment is distributed and sold in a state where various contents are contained and the periphery is sealed, and after opening, part of the contents is taken out and the rest is reused while being contained in the container. Sealable (recloseable). Note that the content may be of any type, such as solid, powder, or liquid.
As shown in FIG. 17, the container body 106 of the packaging container 101B is a so-called flat pouch bag-like container sealed on four sides, and has a surface film 121 forming the surface as in the first embodiment. and a back film 122 forming the back.

In the upper part 131, the upper part of the surface film 121 and the upper part of the back film 122 are joined by heat sealing (heat welding). As a result of this bonding, an upper sealing portion 141 is formed on the upper portion 131 of the container body portion 106 as a sealing portion for bonding the upper portion of the surface film 121 and the upper portion of the back film 122 .
The left and right side seal portions 143 are formed so that their upper ends are continuous with the upper seal portion 141, and near their lower ends are formed so as to be continuous with the bottom seal portion 142, which will be described later. ing.

The side seal portion 143 is provided with a notch 107 for separating the upper seal portion 141 of the container body 106 to form an opening OP (see FIG. 19).
The notch 107 is provided for separating the upper seal portion 141 from the container body portion 106 to open the packaging container 101B. The notch 107 is a notch provided on the upper end side of the side seal portion 143 and below the top seal portion 141 and substantially parallel to the top seal portion 141 . It is provided so as not to penetrate the housing portion 102 from the edge to the housing portion 102 side.
When the notch 107 is used to separate the upper seal portion 141 from the container main body portion 106 and the packaging container 101B is opened, the upper portion of the accommodating portion 102 is opened.

In the container body 106, before the contents are accommodated, at least one sealing portion among the top sealing portion 141, the bottom sealing portion 142, and the side sealing portion 143 is in an unsealed state and is to be sealed. After the contents are accommodated in the container 102 from the seal-planned portion, the seal-planned portion is heat-sealed (bonded) to hermetically seal the contents.

The first hook-and-loop fastener 180A extends in a direction connecting two sides (side portions 133 on both sides) that intersect with the end portion on the side of the upper portion 131 where the opening OP is provided when unsealed, and is below the notch 107. , on the surface of the surface film 121 near the upper portion 131 .
The second hook-and-loop fastener 180B extends in a direction connecting two sides (side portions 133 on both sides) that intersect the end portion on the side of the upper portion 131 where the opening portion OP is provided. The second hook-and-loop fastener 180B is provided on the surface of the surface film 121 on the same side as the first hook-and-loop fastener 180A and at a position closer to the bottom portion 132 than the first hook-and-loop fastener 180A. That is, the second hook-and-loop fastener 180B is provided at a position farther from the position where the opening OP is formed than the first hook-and-loop fastener 180A.
Also in this embodiment, as in the first embodiment, the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B extend parallel to the edge of the upper portion 131 and the edge of the bottom portion 132. . As in the first embodiment, the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B do not necessarily have to be parallel to each other in this configuration. may be

The packaging container 101B configured as described above is shipped with the contents (not shown) stored in the storage portion 102 sealed on the entire circumference.
FIG. 19 is a diagram showing a state in which the packaging container 101B is opened.
A user who has purchased the product can separate the upper seal portion 141 from the container body portion 106 using the notch 107, open the packaging container 101B to form an opening OP, and take out the contents.

FIG. 20 is a diagram showing a resealed state of the packaging container 101B.
When it is desired to take out a part of the contents from the storage part 102 of the packaging container 101B and store the rest, the packaging container 101B is folded at a position between the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B, and the first The packaging container 101 can be resealed using the hook-and-loop fastener 180A and the second hook-and-loop fastener 180B. At this time, the hook-shaped engaging element 181 on one side engages with the hook-shaped engaging element 181 on the other side or the column-shaped engaging element 182, and the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B are properly engaged. joined with sufficient strength. Also, by peeling off the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B, the connection between the two can be easily released, and the package can be opened again.
With conventional resealable packaging containers using zipper tape, it is necessary to precisely match the positions of the male and female engaging parts and join them together. It was. However, in the packaging container 101B of the present embodiment, since the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B of the same shape are used without distinction between male and female, the resealing operation is simplified without requiring accurate positioning. and can be done reliably.

(Example and Comparative Example)
A plurality of types of the packaging containers 101 and 101B described in the above embodiments were produced as examples, and a plurality of comparative examples were produced, and resealing operations were evaluated.
FIG. 21 is a diagram summarizing the results of evaluation of the easiness of bonding at the time of resealing by preparing samples of a plurality of types of packaging containers.
The evaluation shown in FIG. 21 was performed by combining three types of hook-and-loop fastener tapes and zipper members (zipper tapes) with the packaging container 101 of the first embodiment and the packaging container 101B of the second embodiment. 6, and 2 comparative examples. Incidentally, the chuck member is of a conventional type in which a convex engaging portion and a concave engaging portion extending in one direction with the same cross-sectional shape are fitted together, and the fittable width is about 1 mm. be.

<Example 1>
A laminate obtained by dry-laminating a PET thickness of 12 μm, an aluminum-deposited PET thickness of 12 μm, and an LLDPE thickness of 60 μm was coated with a hook-and-loop fastener C having a width of 13 mm in the lateral direction as the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B. , and a four-sided bag having the shape of the packaging container 101 of the first embodiment was produced.

<Example 2>
A laminate obtained by dry-laminating a PET thickness of 12 μm, an aluminum-deposited PET thickness of 12 μm, and an LLDPE thickness of 60 μm was coated with a hook-and-loop fastener C having a width of 13 mm in the lateral direction as the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B. Example 2 was produced by making a four-sided bag in the form of the packaging container 101B of the second embodiment.

<Example 3>
A surface fastener A having a width of 9.5 mm in the lateral direction was used as the first surface fastener 180A and the second surface fastener 180B on a laminate obtained by dry-laminating PET thickness 12 μm, aluminum deposition thickness PET 12 μm, and LLDPE thickness 60 μm. Then, a four-sided bag having the shape of the packaging container 101 of the first embodiment was produced, and Example 3 was produced.

<Example 4>
A surface fastener A having a width of 9.5 mm in the lateral direction was attached to a laminate obtained by dry-laminating a PET thickness of 12 μm, an aluminum deposition PET thickness of 12 μm, and an LLDPE thickness of 60 μm, as the first surface fastener 180A and the second surface fastener 180B. A four-sided bag having the shape of the packaging container 101B of the second embodiment was produced using the above-mentioned materials, and Example 4 was produced.

<Example 5>
A laminate obtained by dry-laminating a PET thickness of 12 μm, an aluminum deposition PET thickness of 12 μm, and an LLDPE thickness of 60 μm was laminated using a surface fastener B having a width of 13 mm in the lateral direction as the first surface fastener 180A and the second surface fastener 180B. , and a four-sided bag having the shape of the packaging container 101 of the first embodiment was produced, and Example 5 was produced.

<Example 6>
A laminate obtained by dry-laminating a PET thickness of 12 μm, an aluminum-deposited PET thickness of 12 μm, and an LLDPE thickness of 60 μm was laminated with a surface fastener B having a width of 13 mm in the lateral direction as the first surface fastener 180A and the second surface fastener 180B. A four-sided bag having the shape of the packaging container 101B of the second embodiment was produced, and Example 6 was produced.

<Comparative Example 1>
A laminate obtained by dry-laminating a PET thickness of 12 μm, an aluminum vapor deposition PET thickness of 12 μm, and an LLDPE thickness of 60 μm is provided with chuck members at positions corresponding to the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B. A four-sided bag having the form of the packaging container 101 of No. 1 was produced, and Comparative Example 1 was produced.

<Comparative Example 2>
A laminate obtained by dry-laminating a PET thickness of 12 μm, an aluminum-deposited PET thickness of 12 μm, and an LLDPE thickness of 60 μm is provided with chuck members at positions corresponding to the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B. Comparative Example 2 was produced by making a four-sided bag in the form of the packaging container 101B of the above.

In Comparative Examples 1 and 2 using the chuck member, the fitting width (jointable width) in which the convex engaging portion and the concave engaging portion can be fitted is only about 1 mm, and the joining work is extremely easy. It was difficult.
On the other hand, in each of Examples 1 to 6 using the hook-and-loop fastener, the width of the hook-and-loop fastener in the lateral direction is as wide as 9.5 mm or 13 mm, so the joinable width is 18 mm or 24 mm. As a result, the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B could be easily joined even if they were slightly misaligned.

As is clear from the above comparison results, the wide width of the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B in the lateral direction facilitates the resealing action (joining work) of the packaging containers 101 and 101B. is possible. In order to obtain such excellent effects, the width in the lateral direction of the first hook-and-loop fastener 180A and the second hook-and-loop fastener 180B is desirably 5 mm or more, and more desirably 7 mm or more.
In addition, the width in the lateral direction of the first surface fastener 180A and the second surface fastener 180B is desirably 30 mm or less, and more desirably 15 mm or less. This is because if the width is wide, the amount of resin is large and it becomes difficult to cut the bag during the bag making process.

(deformed form)
Various modifications and changes are possible without being limited to the embodiments described above, and they are also within the scope of the present invention.

(1) In each embodiment, the specific shape and material of the hook-and-loop fastener can be changed as appropriate. For example, the hook-shaped engaging elements may have a plurality of shapes, and the arrangement and arrangement ratio of the hook-shaped engaging elements and the columnar engaging elements may be changed as appropriate.

(2) In each embodiment, two types of specific packaging container shapes are illustrated, but the hook-and-loop fastener tape of the present invention may be provided on other known packaging containers.

In addition, although each embodiment and modification can also be combined and used suitably, detailed description is abbreviate|omitted. Moreover, the present invention is not limited to each embodiment described above.

101 Packaging container 101B Packaging container 102 Storage portion 106 Container main body 107 Notch 121 Surface film 122 Back film 122a Inner surface exposed portion 131 Top portion 132 Bottom portion 133 Side portion 141 Top sealing portion 142 Bottom sealing portion 143 Side sealing portion 160 Laminated film 161 Base Material layer 162 Design layer 163 Intermediate layer 164 Sealant layer 165 Joining layer 180A First hook-and-loop fastener 180B Second hook-and-loop fastener 181 Hook-like engaging element 181a Column 181b Engaging protrusion 182 Column-like engaging element 183 Base

Claims (6)

A packaging container having a first edge, a second edge opposite the first edge, and two sides intersecting the first edge and the second edge,
a first hook-and-loop fastener extending in a direction intersecting the two side portions and arranged at a position near the first edge;
a second hook-and-loop fastener extending in a direction intersecting the two side portions and arranged on the surface on the same side as the first hook-and-loop fastener;
with
The packaging container, wherein the first hook-and-loop fastener and the second hook-and-loop fastener are hook-and-loop fasteners having hook-shaped engaging elements on both fastener faces. In the packaging container according to claim 1,
a first packaging member;
a second packaging material portion having an exposed inner surface portion arranged to face the first packaging material portion and having an inner surface exposed to the outside without facing the first packaging material portion;
with
An opening is formed in an edge of the first packaging material portion on the inner surface exposed portion side,
The first hook-and-loop fastener is provided on the inner surface exposed portion,
the second hook-and-loop fastener is provided on the first packaging material portion;
A packaging container characterized by In the packaging container according to claim 1,
a first packaging member;
a second packaging material portion arranged to face the first packaging material portion;
with
The first hook-and-loop fastener and the second hook-and-loop fastener are provided in the first packaging material portion,
the second hook-and-loop fastener is provided at a position farther from the first edge than the first hook-and-loop fastener;
A packaging container characterized by In the packaging container according to any one of claims 1 to 3,
The width of the first hook-and-loop fastener and the second hook-and-loop fastener is 5 mm or more,
A packaging container characterized by In the packaging container according to any one of claims 1 to 4,
The width of the first hook-and-loop fastener and the second hook-and-loop fastener is 30 mm or less,
A packaging container characterized by In the packaging container according to any one of claims 1 to 5,
The first hook-and-loop fastener and the second hook-and-loop fastener further include a plurality of columnar engaging elements that stand up from the fastener surface, and
A packaging container characterized by

Images