JP2018065620A5 - - Google Patents
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- JP2018065620A5 JP2018065620A5 JP2017181226A JP2017181226A JP2018065620A5 JP 2018065620 A5 JP2018065620 A5 JP 2018065620A5 JP 2017181226 A JP2017181226 A JP 2017181226A JP 2017181226 A JP2017181226 A JP 2017181226A JP 2018065620 A5 JP2018065620 A5 JP 2018065620A5
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- lid
- heat
- resin layer
- layer
- flange
- Prior art date
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- 239000010410 layer Substances 0.000 description 89
- 239000011347 resin Substances 0.000 description 64
- 229920005989 resin Polymers 0.000 description 64
- 239000011888 foil Substances 0.000 description 30
- 238000007789 sealing Methods 0.000 description 29
- 229910052751 metal Inorganic materials 0.000 description 19
- 239000002184 metal Substances 0.000 description 19
- 239000000853 adhesive Substances 0.000 description 18
- 230000001070 adhesive Effects 0.000 description 18
- 239000002131 composite material Substances 0.000 description 11
- 239000004698 Polyethylene (PE) Substances 0.000 description 10
- -1 polyethylene Polymers 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 230000002093 peripheral Effects 0.000 description 7
- 238000004806 packaging method and process Methods 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920002803 Thermoplastic polyurethane Polymers 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229960003563 Calcium Carbonate Drugs 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 235000015429 Mirabilis expansa Nutrition 0.000 description 1
- 240000006116 Mirabilis expansa Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N TiO Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000111 anti-oxidant Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000789 fastener Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 235000015094 jam Nutrition 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 235000013536 miso Nutrition 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising Effects 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000002345 surface coating layer Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910001929 titanium oxide Inorganic materials 0.000 description 1
Description
＜第１の実施形態＞
図１〜図３は、この発明による第１の実施形態の包装体を示したものである。
図示の包装体(11)は、バター、ジャム、味噌といった食品等の内容物(C)を、容器(2)および蓋(3)を用いて密封包装してなるものである。
容器(2)は、複合シート(20)を深絞り成形してなるカップ状のものである。より具体的には、容器(2)は、底壁(2a)と、底壁(2a)の周縁から立ち上がった周壁(2b)とを備えている。また、容器(2)は、その上方開口周縁にフランジ(2c)を有している。フランジ(2c)は、周壁(2b)の上端縁から径方向外方に向かって水平に張り出したフラットな形状のものである。なお、容器の形状は、フランジを有するカップ状のものであればよく、図示のものに限定されない。
蓋(3)は、所定の寸法および形状にカットされた複合シート(30)からなり、内容物(C)が充填された容器(2)の上方開口を塞ぐように、その下面の周縁部が容器(2)のフランジ(2c)の上面に剥離可能に熱融着されている。
容器(2)のフランジ(2c)と蓋(3)との熱融着部(4)には、その周方向に間隔をおいた２つの部分に、その他の部分よりも開封強度が高められた難開封部(41)が設けられている。２つの難開封部(41)は、それぞれ点状のものであって、熱融着部(4)を周方向にほぼ２等分した２つの半部のうち一方（図１でいうと、左下半部および右上半部のうち右上半部）に偏って設けられている。
蓋(3)には、その周縁部の所要箇所、より詳細には、２つの難開封部(41)から最も離れ
た縁部（図1の左下の縁部）に、開封用タブ(3a)が設けられている。開封用タブ(3a)は、蓋(3)の上記箇所から径方向外方に向かって張り出すように形成された平面より見て略三角形状のものであって、蓋(3)の開封時に手指で摘めるようになっている。
<First Embodiment>
1 to 3 show a package according to the first embodiment of the present invention.
The illustrated package (11) is obtained by hermetically packaging the contents (C) of foods such as butter, jam, and miso using the container (2) and the lid (3).
The container (2) is in the shape of a cup formed by deep drawing the composite sheet (20). More specifically, the container (2) includes a bottom wall (2a) and a peripheral wall (2b) rising from the peripheral edge of the bottom wall (2a). Further, the container (2) has a flange (2c) at the upper opening peripheral edge thereof. The flange (2c) has a flat shape that horizontally extends radially outward from the upper edge of the peripheral wall (2b). The shape of the container is not limited to the one shown in the figure as long as it is cup-shaped with a flange.
The lid (3) is composed of a composite sheet (30) cut into a predetermined size and shape, and the peripheral portion of the lower surface of the lid (3) covers the upper opening of the container (2) filled with the content (C). It is detachably heat-sealed to the upper surface of the flange (2c) of the container (2).
In the heat-sealed portion (4) between the flange (2c) and the lid (3) of the container (2), the unsealing strength was increased in two portions spaced in the circumferential direction from the other portions. A difficult-to-open section (41) is provided. Each of the two difficult-to-open portions (41) is a dot-shaped one, and one of the two halves of the heat-sealed portion (4) is divided into two approximately in the circumferential direction (lower left in FIG. 1). The upper half of the upper half and the upper half of the upper half) are biased.
The lid (3) is provided with an opening tab (3a) at a required position on the peripheral portion thereof, more specifically, at an edge portion (the lower left edge portion in FIG. 1) farthest from the two difficult-to-open portions (41). Is provided. Open sealing tab (3a) has been made in view of a substantially triangular shape when viewed from the formed flat so as to project toward the above part of the lid (3) radially outward, opening the lid (3) Sometimes you can pick it with your fingers.
蓋(3)を構成する複合シート(30)は、図２および図３に示すように、金属箔層(31)と、金属箔層(31)の下面側（包装体(11)の内面側）に順次積層された難開封部形成用熱融着性樹脂層(34)、再封用粘着層(33)、および熱融着性樹脂層(32)と、金属箔層(31)の上面側（包装体(11)の外面側）に積層された外側樹脂層(35)とよりなる。
金属箔層(31)は、蓋(3)にバリア性を付与するバリア層として機能するものであり、例えばアルミニウム箔、ステンレス鋼箔、銅箔、ニッケル箔等によって構成されるが、好適には、アルミニウム箔が用いられる。アルミニウム箔の場合、純アルミニウム箔、アルミニウム合金箔のいずれでもよく、また、軟質、硬質のいずれでもよいが、例えば、ＪＩＳＨ４１６０で分類されるＡ８０２１の焼鈍済の軟質材（Ｏ材）が、好適に用いられる。
蓋(3)の最下層（最内層）を構成する熱融着性樹脂層(32)は、蓋(3)に熱融着（ヒートシ
ール）性を付与するとともに、金属箔(31)を内容物(C)から保護する役割を担うものである。熱融着性樹脂層(32)は、例えば、ポリエチレン樹脂（ＰＥ）フィルム、ポリプロピレン樹脂（ＰＰ）フィルム等の汎用性フィルム、または、これらの複合フィルムによって構成されるが、好適には、容器(2)の熱融着性樹脂層(22)と同一の材料によって構成される。熱融着性樹脂層(32)の厚さは、１５〜２００μｍとするのが好ましく、３０〜６０μｍがより好ましい。熱融着性樹脂層(32)には、必要に応じて、酸化チタン等の着色顔料、酸化防止剤、スリップ剤、耐電防止剤、安定剤等の添加剤、炭酸カルシウム、クレー、マイカ、シリカ等の充填剤、消臭剤を添加してもよい。
熱融着性樹脂層(32)の上面側（裏面側）に積層される再封用粘着層(33)は、開封後の蓋(3)に再シール性を付与するためのものである。再封用粘着層(33)を構成する粘着剤としては、再シール時に要求される粘着強度等に応じて、アクリル樹脂系、ゴム系、シリコン系、またはウレタン系の粘着剤の中から適宜のものが用いられる。
金属箔層(31)と再封用粘着層(33)との間に積層される難開封部形成用熱融着性樹脂層(34)は、熱融着部(4)に難開封部(41)を形成するためのものであって、好適には、容器(2)のフランジ(2c)の熱融着性樹脂層(22)と同一の材料、すなわち、例えば、ポリエチレン樹脂（ＰＥ）フィルム、ポリプロピレン樹脂（ＰＰ）フィルム等の汎用性フィルム、または、これらの複合フィルムによって構成される。難開封部形成用熱融着性樹脂層(34)の厚さは、５〜６０μｍとするのが好ましく、２０〜４０μｍがより好ましい。上記厚さが５μｍ未満であれば膜厚が安定した難開封部形成用熱融着性樹脂層(34)が作りにくく、上記厚さが６０μｍより大きくなるとコストが高くなるからである。なお、難開封部形成用熱融着性樹脂層(34)は、必ずしも蓋(3)にその全面に亘るように形成することを要せず、少なくとも蓋(3)のうち平面より見て容器(2)のフランジ(2c)と重なる周縁部分に形成すれば足りる。
蓋(3)の最上層（最外層）を構成する外側樹脂層(35)は、加飾層や保護層として機能するものであり、例えば、ポリエチレンテレフタレート樹脂（ＰＥＴ）フィルムや延伸ナイロン樹脂（ＯＮｙ）フィルム等の耐熱性樹脂フィルムを、二液硬化型のポリエステル−ウレタン樹脂系接着剤やポリエーテル−ウレタン樹脂系接着剤等の接着剤層（図示略）を介して、金属箔層(31)の上面（外面）にドライラミネートすることにより形成されている。また、外側樹脂層(35)は、表面コート層により形成されていてもよい。表面コート層は、例えば、エポキシ樹脂、硝化綿系樹脂、エポキシメラミン樹脂、塩化ビニル−酢酸ビニル共重合樹脂等のコート用樹脂を溶媒に溶解または分散してなる塗布剤を、金属箔の表面に塗布して乾燥することにより形成される。
As shown in FIGS. 2 and 3, the composite sheet (30) constituting the lid (3) includes a metal foil layer (31) and a lower surface side of the metal foil layer (31) (an inner surface side of the packaging body (11). ), the heat- sealable resin layer (34) for forming a difficult-to-open portion, the resealing adhesive layer (33), and the heat- sealable resin layer (32), and the upper surface of the metal foil layer (31). The outer resin layer (35) is laminated on the side (the outer surface side of the package (11)).
The metal foil layer (31) functions as a barrier layer that imparts a barrier property to the lid (3), and is composed of, for example, aluminum foil, stainless steel foil, copper foil, nickel foil, or the like, but is preferably , Aluminum foil is used. In the case of an aluminum foil, it may be either a pure aluminum foil or an aluminum alloy foil, and may be either soft or hard. For example, an annealed soft material (O material) of A8021 classified by JIS H4160 is suitable Used.
The heat-fusible resin layer (32) forming the lowermost layer (innermost layer) of the lid (3) imparts heat-sealing property to the lid (3) and also contains the metal foil (31). It plays a role of protecting from the thing (C). The heat-fusible resin layer (32) is composed of, for example, a general-purpose film such as a polyethylene resin (PE) film or a polypropylene resin (PP) film, or a composite film thereof, and preferably a container ( It is composed of the same material as the heat-fusible resin layer (22) of 2). The thickness of the heat-fusible resin layer (32) is preferably 15 to 200 μm, more preferably 30 to 60 μm. The heat-fusible resin layer (32), if necessary, color pigments such as titanium oxide, antioxidants, slip agents, antistatic agents, additives such as stabilizers, calcium carbonate, clay, mica, silica Fillers such as and deodorants may be added.
The resealing adhesive layer (33) laminated on the upper surface side (rear surface side) of the heat-fusible resin layer (32) is for imparting resealing property to the lid (3) after opening. The pressure-sensitive adhesive that constitutes the re-sealing pressure-sensitive adhesive layer (33) may be selected from acrylic resin-based, rubber-based, silicon-based, or urethane-based pressure-sensitive adhesives depending on the adhesive strength required for resealing. Things are used.
The heat-fusible resin layer (34) for forming a difficult-to-open portion that is laminated between the metal foil layer (31) and the resealing adhesive layer (33) is a hard-to-open portion (4) in the heat-sealing portion (4). 41) for forming the heat-fusible resin layer (22) of the flange (2c) of the container (2), that is, for example, a polyethylene resin (PE) film. , A polypropylene resin (PP) film or other versatile film, or a composite film thereof. The thickness of the heat-fusible resin layer (34) for forming the difficult-to-open portion is preferably 5 to 60 μm, more preferably 20 to 40 μm. This is because if the thickness is less than 5 μm, it is difficult to form the heat-fusible resin layer (34) for forming a difficult-to-open portion having a stable film thickness, and if the thickness is more than 60 μm, the cost increases. The heat-fusible resin layer (34) for forming the difficult-to-open portion does not necessarily have to be formed on the lid (3) so as to cover the entire surface thereof, and at least the lid (3) is seen from the plane of the container. It suffices if it is formed in the peripheral portion that overlaps the flange (2c) of (2).
The outermost resin layer (35) forming the uppermost layer (outermost layer) of the lid (3) functions as a decorative layer or a protective layer, and for example, a polyethylene terephthalate resin (PET) film or a stretched nylon resin (ONy). ) A heat-resistant resin film such as a film, a metal foil layer (31) through an adhesive layer (not shown) such as a two-component curing type polyester-urethane resin adhesive or polyether-urethane resin adhesive It is formed by dry laminating on the upper surface (outer surface) of the. Further, the outer resin layer (35) may be formed of a surface coat layer. The surface coating layer is, for example, an epoxy resin, a nitrified cotton-based resin, an epoxymelamine resin, a vinyl chloride-vinyl acetate-copolymer resin or the like coating agent formed by dissolving or dispersing in a solvent, a coating agent on the surface of the metal foil. It is formed by applying and drying.
図３に示すように、容器(2)のフランジ(2c)と蓋(3)との熱融着部(4)に設けられている難開封部(41)は、蓋(3)の難開封部形成用熱融着性樹脂層(34)と容器(2)のフランジ(2c)の熱融着性樹脂層(22)とを部分的に熱融着することにより形成されている。
より具体的にいうと、例えば、包装体(11)の製造ラインにおいて、容器(2)のフランジ(2c)および蓋(3)の重合面の熱融着性樹脂層(22)(32)どうしを熱融着させる第１シール工程の後に、蓋(3)の難開封部形成用熱融着性樹脂層(34)と容器(2)のフランジ(2c)の熱融着性樹脂層(22)とをスポット的に熱融着させる第２シール工程を設けることにより、容器(2)のフランジ(2c)と蓋(3)との熱融着部(4)に難開封部(41)が形成される。第２シール工程では、例えば、フランジ(2c)の下面側に当て板を配した状態で、所定温度に加熱された加熱ピンを、蓋(3)における難開封部(41)を形成すべき箇所に、上方から所定の加圧力で差し込むことにより、蓋(3)の難開封部形成用熱融着性樹脂層(34)が、再封用粘着層(33)および熱融着性樹脂層(32)を突き抜けて、フランジ(2c)の熱融着性樹脂層(22)と接触し、両者(34)(22)が局所的に熱融着される。
難開封部(41)の形状、大きさおよび数は、要求される開封強度や部分開封の度合い（非剥離部分の割合）等に応じて適宜決定されるが、好ましくは、この実施形態のように、点状の難開封部(41)が周方向に所要間隔をおいて２つ設けられている。ここで、「点状」には、図１に示すような小さい円形のものの他、三角形、四角形等の多角形も含まれる。また、第２シール工程において、加熱ピンに代えて、垂直な加熱板の直線帯状先端縁を熱融
着部(4)の所要の２箇所に跨るように蓋(3)に押し付けることによって、２つの難開封部を形成してもよく、その場合、難開封部は、加熱板の先端縁の幅に応じた幅を有する短い帯状のものとなされる（図７参照）。
なお、熱融着部に難開封部を形成する手段は、上記のものに限定されず、その他の手段を用いてもよい。例えば、熱融着された容器(2)のフランジ(2c)と蓋(3)とを、部分的にかしめたり、あるいは留め具で固定したり、または、容器(2)のフランジ(2c)の金属箔層(21)と蓋(3)の金属箔層(31)とを超音波接合によって部分的に接合することにより、難開封部を形成することも考えられる。
難開封部の配置に関し、この実施形態では、２つの難開封部(41)が、容器(2)のフランジ(2c)と蓋(3)との熱融着部(4)を周方向にほぼ２等分した２つの半部のうちいずれか一方（図1では、左下側と右上側のうち右上側）に偏って設けられているので、開封用タブ(3a)を引き上げて蓋(3)を開封した際の開封の度合い（開口面積）を比較的大きくとることができ、固形物等の内容物(C)の取り出しが容易となる。もっとも、例えば内容物が液状体や粒、粉などのサイズの小さい固形物である場合、開封用タブを、蓋(3)の中心を挟んで図１と反対側の位置に設けることにより、開封の度合い（開口面積）を小さくして使用することも可能である。
As shown in FIG. 3, the difficult-to-open part (41) provided at the heat-sealing part (4) between the flange (2c) of the container (2) and the lid (3) is a hard-to-open part of the lid (3). It is formed by partially heat-sealing the part-forming heat-fusible resin layer (34) and the heat-fusible resin layer (22) of the flange (2c) of the container (2).
More specifically, for example, in the production line of the package (11), the flange (2c) of the container (2) and the heat-fusible resin layer (22) (32) of the polymerized surface of the lid (3) After the first sealing step of heat-sealing, the heat-fusible resin layer (34) for forming the difficult-to-open portion of the lid (3) and the heat-fusible resin layer (22 of the flange (2c) of the container (2). By providing the second sealing step of spot-heat-sealing with each other, a difficult-to-open portion (41) is formed in the heat-sealing portion (4) between the flange (2c) of the container (2) and the lid (3). It is formed. In the second sealing step, for example, with the contact plate placed on the lower surface side of the flange (2 c ), the heating pin heated to a predetermined temperature should form the difficult-to-open portion (41) of the lid (3 ). By inserting into the location from above with a predetermined pressure, the heat-sealable resin layer (34) for forming the difficult-to-open portion of the lid (3) is a resealing adhesive layer (33) and a heat-sealable resin layer. It penetrates through (32) and comes into contact with the heat-fusible resin layer (22) of the flange (2c), and both (34) and (22) are locally heat-sealed.
The shape, size and number of the difficult-to-open portion (41) are appropriately determined according to the required opening strength, the degree of partial opening (ratio of non-peeling portion), etc., but preferably as in this embodiment. In addition, two dot-shaped difficult-to-open portions (41) are provided at required intervals in the circumferential direction. Here, the "dotted shape" includes not only a small circular shape as shown in FIG. 1 but also a polygonal shape such as a triangle or a quadrangle. Further, in the second sealing step, in place of the heating pin, the linear strip-shaped leading edge of the vertical heating plate is pressed against the lid (3) so as to straddle the required two places of the heat-sealing part (4). Two difficult-to-open portions may be formed, in which case the difficult-to-open portion is formed into a short strip shape having a width corresponding to the width of the leading edge of the heating plate (see FIG. 7).
The means for forming the difficult-to-open portion on the heat-sealed portion is not limited to the above, and other means may be used. For example, the flange (2c) and the lid (3) of the heat-sealed container (2) are partially caulked or fixed with a fastener, or of the flange (2c) of the container (2). It is also conceivable to partially bond the metal foil layer (21) and the metal foil layer (31) of the lid (3) by ultrasonic bonding to form the difficult-to-open portion.
Regarding the disposition of the difficult-to-open portion, in the present embodiment, the two hard-to-open portions (41) are arranged in the circumferential direction of the heat-sealing portion (4) between the flange (2c) of the container (2) and the lid (3). Since it is biased to one of the two halves (the lower left side and the upper right side in FIG. 1 of the upper right side in FIG. 1), the opening tab (3a) is pulled up and the lid (3) is pulled up. The degree of opening (opening area) when the container is opened can be made relatively large, and the contents (C) such as solid matter can be taken out easily. However, for example, when the contents are small solids such as liquids, granules, and powders, an opening tab is provided at a position opposite to that shown in FIG. 1 with the center of the lid (3) interposed therebetween. It is also possible to use it by reducing the degree (opening area).
上記第１の実施形態の包装体(11)にあっては、未開封状態では、バリア性に優れた金属箔層(21)(31)を有する容器(2)および蓋(3)によって内容物(C)が密封包装されているので（図２(a)および図３参照）、内容物(C)を劣化させることなく長期保存することが可能である。
そして、内容物(C)を必要な数量ずつ取り出して使用する場合、蓋(3)の開封用タブ(3a)を手指で摘んで引き上げると、蓋(3)の熱融着性樹脂層(32)が容器(2)のフランジ(2c)と蓋(3)との熱融着部(4)の外端縁付近で破断し、蓋(3)が熱融着性樹脂層(32)と再封用粘着層(33)との間で熱融着部(4)の幅にほぼ等しい分だけ剥離した後、蓋(3)の熱融着性樹脂層(32)が熱融着部(4)の内端縁付近で再び破断し、蓋(3)が開封する。破断によって蓋(3)から分離した熱融着性樹脂層(32)の部分(32a)は、容器(2)のフランジ(2c)上面に残る。蓋(3)の開封が２つの難開封部(41)の箇所まで達すると、蓋(3)の引き上げを阻止する抵抗力が手指に伝わるので、そこで開封操作をストップする。こうして、蓋(3)は、容器(2)のフランジ(2c)から完全に剥がれることなく、一部がフランジ(2c)から剥離せずに一体化されたままの部分開封状態となる。この状態で、容器(2)の開口を通じて内容物(C)を必要な数量だけ取り出す。
内容物(C)の取り出しが終わったら、蓋(3)の開封部分を元に戻すようにフランジ(2c)上面に重ねていくと、蓋(3)の剥離開封によって形成された再封用粘着層(33)の欠環状の露出部(33a)が、フランジ(2c)上面に貼り付けられ、それによって蓋(3)の再封が行われ、残った内容物(C)を密封状態で保存することが可能となる。
内容物(C)をすべて使い切って包装体(11)を処分する場合は、蓋(3)の開封用タブを上方に強く引っ張ると、難開封部(41)、すなわち、蓋(3)の難開封部形成用熱融着性樹脂層(34)とフランジ(2c)の熱融着性樹脂層(22)との熱融着部が破断するので、蓋(3)全体を容器のフランジから剥離して取り外すことができる。つまり、容器(2)と蓋(3)を分別して処分することができ、リサイクルが容易となる。
In the package (11) of the first embodiment, in the unopened state, the contents are provided by the container (2) and the lid (3) having the metal foil layers (21) (31) having excellent barrier properties. Since (C) is hermetically packaged (see FIGS. 2 (a) and 3), the contents (C) can be stored for a long time without deterioration.
When the contents (C) are to be taken out in a required quantity and used, the opening tab (3a) of the lid (3) is picked up by fingers to pull up the heat-fusible resin layer (32) of the lid (3). ) Fractured near the outer edge of the heat-sealed portion (4) between the flange (2c) of the container (2) and the lid (3), and the lid (3) rejoined with the heat-fusible resin layer (32). After peeling from the sealing adhesive layer (33) by an amount approximately equal to the width of the heat-sealing portion (4), the heat-sealing resin layer (32) of the lid (3) is heat-sealed (4). (2) It breaks again in the vicinity of the inner edge and the lid (3) opens. The portion (32a) of the heat-fusible resin layer (32) separated from the lid (3) by breaking remains on the upper surface of the flange (2c) of the container (2). When the opening of the lid (3) reaches the two difficult-to-open portions (41), a resistance force that prevents the lid (3) from being pulled up is transmitted to the fingers, and the opening operation is stopped there. In this way, the lid (3) is not completely peeled from the flange (2c) of the container (2), and a part of the lid (3) is not peeled from the flange (2c) and is in a partially opened state in which the lid (3) remains integrated. In this state, the required amount of the content (C) is taken out through the opening of the container (2).
After taking out the contents (C), stack the lid (3) on the upper surface of the flange (2c) so that the opening part of the lid (3) should be returned to its original position, and the resealable adhesive formed by peeling and opening the lid (3). The ring-shaped exposed part (33a) of the layer (33) is attached to the upper surface of the flange (2c), thereby resealing the lid (3) and storing the remaining contents (C) in a sealed state. It becomes possible to do.
When the package (11) is disposed of after all the contents (C) are used up, pulling the opening tab of the lid (3) strongly upward makes it difficult to open the difficult-to-open portion (41), that is, the lid (3). Since the heat-sealing portion between the heat-sealing resin layer for forming the unsealed portion (34) and the heat-melting resin layer (22) of the flange (2c) is broken, the entire lid (3) is peeled from the flange of the container. Can be removed. That is, the container (2) and the lid (3) can be separated and disposed of, which facilitates recycling.
＜第５の実施形態＞
図７および図８は、この発明による第５の実施形態の包装体を示したものである。
この実施形態の包装体(15)は、以下の点を除いて、図１〜図３に示す第１の実施形態の包装体(11)と実質的に同じである。
すなわち、図７に示すように、この実施形態の包装体(15)では、容器(2)を構成している複合シート(20X)が、金属箔層(21)と、金属箔層(21)の内面側に順次積層された難開封部形成用熱融着性樹脂層(25)、再封用粘着層(26)、および熱融着性樹脂層(22)と、金属箔層(21)の外面に積層された外側樹脂層(23)とよりなる。
一方、蓋(3)を構成する複合シート(30X)は、金属箔層(31)と、金属箔層(31)の下面側（包装体(15)の内面側）に積層された熱融着性樹脂層(32)と、金属箔層(31)の上面側（包装体(15)の外面側）に積層された外側樹脂層(35)とよりなる。
そして、図８に示すように、容器(2)のフランジ(2c)と蓋(3)との熱融着部(4)に設けられている難開封部(41X)が、容器(2)のフランジ(2c)の難開封部形成用熱融着性樹脂層(25)と、蓋(3)の熱融着性樹脂層(22)とを部分的に熱融着することにより形成されている。
<Fifth Embodiment>
7 and 8 show a package body according to the fifth embodiment of the present invention.
The package (15) of this embodiment is substantially the same as the package (11) of the first embodiment shown in FIGS. 1 to 3 except for the following points.
That is, as shown in FIG. 7, in the packaging body (15) of this embodiment, the composite sheet (20X) constituting the container (2) has a metal foil layer (21) and a metal foil layer (21). The heat- sealable resin layer for forming a difficult-to-open portion (25), the resealing adhesive layer (26), and the heat- sealable resin layer (22), which are sequentially laminated on the inner surface side, and the metal foil layer (21) And an outer resin layer (23) laminated on the outer surface of the.
On the other hand, the composite sheet (30X) constituting the lid (3) is a heat-sealed layer laminated on the metal foil layer (31) and the lower surface side of the metal foil layer (31) (the inner surface side of the packaging body (15)). The resin layer (32) and the outer resin layer (35) laminated on the upper surface side (the outer surface side of the package (15)) of the metal foil layer (31).
Then, as shown in FIG. 8, the difficult-to-open portion (41X) provided in the heat-sealed portion (4) between the flange (2c) and the lid (3) of the container (2) is the same as the container (2). It is formed by partially heat-sealing the heat-fusible resin layer (25) for forming the difficult-to-open portion of the flange (2c) and the heat-fusible resin layer (22) of the lid (3). ..
上記の包装体(15)にあっては、内容物(C)を必要な数量ずつ取り出して使用する場合、蓋(3)の開封用タブを手指で摘んで引き上げると、容器(2)のフランジ(2c)の熱融着性樹脂層(22)が容器(2)のフランジ(2c)と蓋(3)との熱融着部(4)の外端縁付近で破断し、フランジ(2c)が熱融着性樹脂層(22)と再封用粘着層(26)との間で熱融着部(4)の幅にほぼ等しい分だけ剥離した後、フランジ(2c)の熱融着性樹脂層(22)が熱融着部(4)の内端縁付近で再び破断し、蓋(3)が開封する。破断によってフランジ(2c)から分離した熱融着性樹脂層(22)の部分(22a)は、蓋(3)に付随する。蓋(3)の開封が２つの難開封部(41X)の箇所まで達すると、蓋(3)の引き上げを阻止する抵抗力が手指に伝わるので、そこで開封操作をストップする。こうして、蓋(3)は、容器(2)のフランジ(2c)から完全に剥がれることなく、一部がフランジ(2c)から剥離せずに一体化されたままの部分開封状態となる。
内容物(C)の取り出しが終わったら、蓋(3)の開封部分を元に戻すようにフランジ(2c)上
面に重ねていくと、蓋(3)の剥離開封によって形成された再封用粘着層(26)の欠環状の露出部(26a)が、蓋(3)下面に貼り付けられ、それによって蓋(3)の再封が行われ、残った内容物(C)を密封状態で保存することが可能となる。
内容物(C)をすべて使い切って包装体(11)を処分する場合は、蓋(3)の開封用タブを上方に強く引っ張ると、難開封部(41X)、すなわち、容器(2)のフランジ(2c)の難開封部形成用熱融着性樹脂層(25)と蓋(3)の熱融着性樹脂層(32)との熱融着部が破断するので、蓋(3)全体を容器のフランジから剥離して取り外すことができる。
In the above package (15), when the contents (C) are taken out in a required quantity and used, the fingers of the opening tab of the lid (3) are picked up and pulled up, and the flange of the container (2) is pulled. The heat-fusible resin layer (22) of (2c) is fractured near the outer edge of the heat-fusion part (4) of the flange (2c) of the container (2) and the lid (3), and the flange (2c). After peeling between the heat-fusible resin layer (22) and the resealing pressure-sensitive adhesive layer (26) by an amount substantially equal to the width of the heat-welding portion (4), the heat-welding property of the flange (2c) The resin layer (22) is broken again near the inner edge of the heat-sealed portion (4), and the lid (3) is opened. The part (22a) of the heat-fusible resin layer (22) separated from the flange (2c) by breaking is attached to the lid (3). When the opening of the lid (3) reaches the two difficult-to-open portions (41X), a resistance force that prevents the lid (3) from being pulled up is transmitted to the fingers, so the opening operation is stopped there. In this way, the lid (3) is not completely peeled from the flange (2c) of the container (2), and a part of the lid (3) is not peeled from the flange (2c) and is in a partially opened state in which the lid (3) remains integrated.
After taking out the contents (C), stack the lid (3) on the upper surface of the flange (2c) so that the opening part of the lid (3) should be returned to its original position, and the resealable adhesive formed by peeling and opening the lid (3). The ring-shaped exposed portion (26a) of the layer (26) is attached to the lower surface of the lid (3), thereby resealing the lid (3) and storing the remaining contents (C) in a sealed state. It becomes possible to do.
When discarding the package (11) after all the contents (C) have been used up, pull the opening tab of the lid (3) strongly upward and the difficult-to-open part (41X), that is, the flange of the container (2). Since the heat-sealing portion between the heat-sealable resin layer (25) for forming the difficult-to-open portion (2c ) and the heat-sealable resin layer (32) of the lid (3) is broken, the entire lid (3) is It can be removed by peeling it from the flange of the container.
＜蓋の作製＞
ＪＩＳ Ｈ４１６０で分類されるＡ１Ｎ３０Ｈ-Ｏよりなる厚さ２０μｍのアルミニウム箔を用意した。アルミニウム箔の表面には、クロメート処理を行うことにより、化成皮膜を形成した。そして、アルミニウム箔の片面に、難開封部形成用熱融着性樹脂層として、厚さ３５μｍのポリエチレン樹脂（ＰＥ）フィルムを、ポリエステル系ウレタン接着剤を用いてドライラミネートするとともに、アルミニウム箔の他面に、外側樹脂層として、厚さ１２μｍのポリエチレンテレフタレート樹脂（ＰＥＴ）フィルムを、ポリエステル系ウレタン接着剤を用いてドライラミネートした。また、ポリエチレン樹脂（ＰＥ）フィルムの表面に、再封用粘着層として、ゴム系粘着剤を１０μｍの厚みでグラビアコーティングし、さらにその上に、熱融着性樹脂層として、厚さ２０μｍのポリエチレン樹脂（ＰＥ）フィルムを貼り付けた。こうして、蓋の材料となる複合シートを得た。
得られた複合シートを所定のサイズおよび形状にカットして、図９に示すような開封用タブ(3a)を有する蓋(3)を作製した。
<Production of lid>
An aluminum foil having a thickness of 20 μm and made of A1N30H-O classified by JIS H4160 was prepared. A chromate film was formed on the surface of the aluminum foil by performing chromate treatment. Then, on one surface of the aluminum foil, a polyethylene resin (PE) film having a thickness of 35 μm was dry-laminated using a polyester-based urethane adhesive as a heat-fusible resin layer for forming a difficult-to-open portion, and the aluminum foil A polyethylene terephthalate resin (PET) film having a thickness of 12 μm was dry-laminated on the surface as an outer resin layer using a polyester urethane adhesive. In addition, a rubber-based adhesive having a thickness of 10 μm was gravure-coated as a resealing adhesive layer on the surface of the polyethylene resin (PE) film, and a heat-fusible resin layer having a thickness of 20 μm polyethylene was further formed thereon. A resin (PE) film was attached. In this way, a composite sheet as a material for the lid was obtained.
The obtained composite sheet was cut into a predetermined size and shape to prepare a lid (3) having an opening tab (3a) as shown in FIG.
＜実施例２＞
第２シール工程として、熱融着部のうち図９に示す２箇所において、シール幅(W)３ｍｍのヒートシール（熱融着）を行うことにより、２つの難開封部(41)を形成した点を除いて、実施例１と同じ要領で包装体を作製し、これを実施例２とした。
<Example 2>
A second sealing step, the two locations shown in among 9 of thermally fused portion, by performing sealing width (W) 3 mm heat sealing (thermal fusion) to form two hard-to-open portion (41) A packaging body was prepared in the same manner as in Example 1 except for the points, and was designated as Example 2.
＜実施例３＞
第２シール工程として、熱融着部のうち図９に示す２箇所において、シール幅(W)１ｍｍのヒートシール（熱融着）を行うことにより、２つの難開封部(41)を形成した点を除いて、実施例１と同じ要領で包装体を作製し、これを実施例３とした。
<Example 3>
As the second sealing step, two difficult-to-open portions (41) were formed by heat-sealing (heat-sealing) with a seal width (W) of 1 mm at the two locations shown in FIG. 9 in the heat-sealing portion. A packaging body was produced in the same manner as in Example 1 except for the points, and this was set as Example 3.
(11)(12)(13)(14)(15)：包装体
(2)：容器
(2c)：フランジ部
(20)(20X)：複合シート
(21)：金属箔層
(22)：熱融着性樹脂層
(25)：難開封部形成用熱融着性樹脂層
(26)：再封用粘着層
(3)：蓋
(3a)：開封用タブ
(30)(30X)：複合シート
(31)：金属箔層
(32)：熱融着性樹脂層
(33)：再封用粘着層
(34)：難開封部形成用熱融着性樹脂層
(4)：熱融着部
(41)(41X)(42)：難開封部
(C)：内容物
(11)(12)(13)(14)(15): Package
(2): Container
(2c): Flange part
(20)(20X): Composite sheet
(21): Metal foil layer
(22): Heat-fusible resin layer
(25): Heat-fusible resin layer for forming a difficult-to-open portion
(26): Resealing adhesive layer
(3): Lid
(3a): Opening tab
(30)(30X): Composite sheet
(31): Metal foil layer
(32): Heat-fusible resin layer
(33): Resealing adhesive layer
(34): Heat-fusible resin layer for forming difficult-to-open portion
(4): Heat fusion part
(41)(41X)(42): Difficult-to-open part
(C): Contents
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721320415.2U CN207932268U (en) | 2016-10-14 | 2017-10-13 | Package body |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016202861 | 2016-10-14 | ||
| JP2016202861 | 2016-10-14 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2018065620A JP2018065620A (en) | 2018-04-26 |
| JP2018065620A5 true JP2018065620A5 (en) | 2020-08-27 |
| JP6998165B2 JP6998165B2 (en) | 2022-01-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017181226A Active JP6998165B2 (en) | 2016-10-14 | 2017-09-21 | Package |
Country Status (2)
| Country | Link |
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| JP (1) | JP6998165B2 (en) |
| CN (1) | CN207932268U (en) |
Families Citing this family (1)
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|---|---|---|---|---|
| JP7373710B1 (en) | 2022-07-08 | 2023-11-06 | 東洋インキＳｃホールディングス株式会社 | Resealable heat seal laminates and resealable packaging containers |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2742085B2 (en) * | 1989-03-24 | 1998-04-22 | 住友ベークライト株式会社 | Easy-open sealed container |
| IT1254174B (en) * | 1991-12-24 | 1995-09-11 | Burgopack Stampa Trasformazione Imballaggi Spa | CONTAINER WITH HEAT-SEALED COVER OF THE PEELABLE TYPE WITH IMPROVED ANCHORAGE AREA |
| JP2001315835A (en) | 2000-02-29 | 2001-11-13 | Toppan Printing Co Ltd | Lid material for bottomed container |
| JP4159903B2 (en) | 2003-03-06 | 2008-10-01 | 出光ユニテック株式会社 | LAMINATE, MANUFACTURING METHOD THEREOF AND RESEALABLE PACKAGE USING THE SAME |
| JP2006123971A (en) | 2004-10-28 | 2006-05-18 | Kyodo Printing Co Ltd | Powder container and lid member therefor, and |
| JP5185860B2 (en) | 2009-03-05 | 2013-04-17 | オリヒロプランデュ株式会社 | Jelly food |
| JP6369221B2 (en) | 2014-08-25 | 2018-08-08 | 三菱ケミカル株式会社 | Package |
-
2017
- 2017-09-21 JP JP2017181226A patent/JP6998165B2/en active Active
- 2017-10-13 CN CN201721320415.2U patent/CN207932268U/en active Active
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