JP5916979B2 - Lid and container using the same - Google Patents
Lid and container using the same Download PDFInfo
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- JP5916979B2 JP5916979B2 JP2009199393A JP2009199393A JP5916979B2 JP 5916979 B2 JP5916979 B2 JP 5916979B2 JP 2009199393 A JP2009199393 A JP 2009199393A JP 2009199393 A JP2009199393 A JP 2009199393A JP 5916979 B2 JP5916979 B2 JP 5916979B2
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Description
本発明は、トレー状やカップ状等の容器本体の開口部に熱接着され蓋材の一部を切り取ることができる蓋材、及び容器本体に粒状物や細片状の固形物や即席麺等が密封収納され容器本体の開口部に当該蓋材を熱接着した容器に関し、詳しくは、紙基材、アルミ、一軸延伸フィルム、熱接着性樹脂層からなる蓋材を容器に熱接着した状態で蓋材の一部をノッチ等の切れ込みを設けることなく直線状に引裂くことができ振出口や排湯口を形成することが出来る蓋材及びそれを用いた容器に関する。 The present invention is a lid that can be thermally bonded to an opening of a container body such as a tray or a cup, and a part of the lid can be cut off, and a granular or strip-like solid or instant noodle on the container body. In detail, in a state where the lid is thermally sealed and the lid is thermally bonded to the opening of the container body, in detail, the lid made of a paper base material, aluminum, a uniaxially stretched film, and a thermoadhesive resin layer is thermally bonded to the container. The present invention relates to a lid that can tear a part of the lid in a straight line without providing a notch or the like and form a swing outlet or a hot water outlet, and a container using the lid.
従来、トレー状やカップ状等の容器本体に例えば、チョコレート菓子、スナック菓子、焼き菓子等の粒状物や塩昆布、きざみ海苔等の細片状の固形物、例えばふりかけ類や焼きそば等の湯戻し調理する即席麺等の内容物を収納し、開口部を蓋材で密封し、その後、蓋材の一部を切り取って振出口や排湯口を形成し、この振出口より内容物を取り出して食する又は排湯することができる容器が知られている。これらの容器の蓋材には、内容物の吸湿や酸化を防止するため、紙層と熱接着性樹脂層との間にアルミニウム箔を積層した積層体が用いられ、この蓋材を容器本体の開口部に熱接着して密封容器とされている。
また、上記積層体からなる蓋材には、切り取り予定線沿って蓋材の一部を容易に切り取ることができるように、例えば、切り取り予定線に沿って紙層に切目を設ける等の易開封手段が施されている。あるいは、一軸延伸フィルムを使用して切り取り方向に開封できるようにしたものが開示されている（例えば、特許文献１参照）。
Conventionally, for example, chocolate confectionery, snack confectionery, baked confectionery and other granular materials, salt kelp, chopped seaweed and other solids such as sprinkles and fried noodles The contents such as instant noodles are stored, the opening is sealed with a lid, and then a part of the lid is cut to form a swing outlet and a hot water outlet. The contents are taken out from the swing outlet and eaten. Or the container which can be drained is known. In order to prevent moisture absorption and oxidation of the contents, a laminate in which an aluminum foil is laminated between the paper layer and the heat-adhesive resin layer is used for the lid of these containers. It is made into a sealed container by thermally bonding to the opening.
In addition, the lid member made of the above laminate is easily opened, for example, by providing a cut in the paper layer along the planned cut line so that a part of the cover material can be easily cut along the planned cut line. Means are given. Or what was made to be able to open in a cutting direction using a uniaxially stretched film is disclosed (for example, refer to patent documents 1).
しかしながら、いずれの易開封手段が施された蓋材も、開封開始となる端部に切り込み等の開封開始手段が設けられており、前者の易開封手段が施された蓋材の場合には、切り取り予定線に沿って設けられた切目と切り込みとの位置合せが必要であり、位置ズレを生じると開封がスムーズにできないという問題がある。また、前者及び後者の易開封手段が施された蓋材の場合も、容器本体と蓋材との位置ズレが生じ、切り込み位置が容器本体のフランジよりも内側になると内容物が吸湿や酸化するという恐れがある。さらには輸送中の振動や取扱い時に蓋材が切り込みより引裂かれることがあるという恐れがある。 However, the lid material that has been subjected to any easy opening means is provided with an opening start means such as a cut at the end to be opened, and in the case of the lid material that has been subjected to the former easy opening means, There is a problem that the alignment between the cut and the cut provided along the planned cut line is necessary, and if the position shift occurs, the opening cannot be made smoothly. Also, in the case of the lid material provided with the former and the latter easy-opening means, the container body and the lid material are misaligned, and the content is absorbed or oxidized when the cut position is inside the flange of the container body. There is a fear. Furthermore, there is a risk that the lid material may be torn from the notch during vibration during transportation or handling.
そこで本発明は、上記問題を解決すべくなされたものであり、蓋材を容器に熱接着した状態で蓋材の一部にノッチ等の切り込みを設けることなく容易に直線状に引裂くことができ振出口又は排湯口を形成することが出来る蓋材及びそれを用いた容器を提供することを目的とするものである。 The present invention has been made to solve the above problems, be torn easily linearly without providing a notch of the notch or the like in a part of the lid while thermally bonding the lid to the container An object of the present invention is to provide a lid member capable of forming a swing outlet or a hot water outlet and a container using the lid member.
本発明は、上記課題を達成するために、請求項１記載の本発明は、環状帯状を成す平坦な上側表面を有するフランジ部を備え且つ前記フランジ部で囲まれた円形の開口部を有する容器本体に対して装着する蓋材であって、前記蓋材は、平面視方向においては、一方の周縁に容器本体の周縁から外方に向かって突出する開封用タブと、他方の周縁に当該開封用タブと対向する位置に開口用のタブが設けられている略円形状の外郭形状を備えており、厚み方向においては、紙層と一軸延伸フィルムからなる基材とアルミニウム箔層と熱接着性樹脂層が積層された積層体の断面構造を備えており、容器本体の開口部を囲む環状帯状を成すフランジ部の平坦な上側表面にて、前記蓋材の熱接着性樹脂層の面と前記容器本体のフランジ部の平坦な上側表面とが接合状態とされることにより、前記蓋材が容器本体に対して装着され、容器本体に装着された状態において、容器本体から開口用タブを引っ張ることで積層体の全層を以って剥離可能とする全層剥離タイプの蓋材であって、当該開封用タブは、一軸延伸フィルムの延伸方向における一方の端部に、容器本体の周縁から外方に向かって突出する第一突出部を有しており、蓋材の周縁と開封用タブの前記第一突出部の周縁が繋がる部分を開封用タブの第一の付け根部分とし、当該開封用タブの第一の付け根部分は蓋材の内方に突出し変曲点を備えた平面視アールを有する曲線状であり、当該開封用タブの第一の付け根部分に周縁に切り込みを設けることなく、当該開封用タブの第一の付け根部分より、前記一軸延伸フィルムの延伸方向に沿って前記積層体からなる蓋材を直線状に引裂くことにより、蓋材の一部を取り除いて振出口又は湯切口を形成することを可能としたことを特徴とする蓋材である。 In order to achieve the above object, the present invention according to claim 1 is a container having a flange portion having a flat upper surface forming an annular band and having a circular opening surrounded by the flange portion. A lid member to be attached to the main body, wherein the lid member has, in a plan view direction, an opening tab protruding outward from the periphery of the container body on one peripheral edge and the opening on the other peripheral edge. It is provided with a substantially circular outer shape in which a tab for opening is provided at a position opposite to the tab for use, and in the thickness direction, a base material composed of a paper layer and a uniaxially stretched film, an aluminum foil layer, and thermal adhesiveness A cross-sectional structure of a laminate in which a resin layer is laminated, and a flat upper surface of a flange portion that forms an annular band surrounding the opening of the container body, and the surface of the thermally adhesive resin layer of the lid member and the surface Flat upper table of the flange of the container body By preparative is a joined state, wherein the cover member is mounted to the container body in the mounting state to the container body, drives out all the layers of the stack by pulling the opening tab from the container body 1st protrusion part which is a lid | cover material of the all layer peeling type which makes peeling possible, Comprising: The said opening tab protrudes outward from the periphery of a container main body in one edge part in the extending | stretching direction of a uniaxially stretched film And a portion where the peripheral edge of the lid member and the peripheral edge of the first projecting portion of the opening tab are connected is a first root portion of the opening tab, and the first root portion of the opening tab is the lid member of a curved shape with a plan view radius having a protruding inflection point inward, without providing a notch in the peripheral edge to the first base portion of the opening tab, the first base portion of the opening tab More along the stretching direction of the uniaxially stretched film. By tearing the laminate linearly lid consisting of Te, a lid member, characterized in that made it possible to form an outlet or hot cut vibration by removing a part of the lid.
また、請求項２記載の本発明は、環状帯状を成す平坦な上側表面を有するフランジ部を備え且つ前記フランジ部で囲まれた円形の開口部を有する容器本体に対して装着する蓋材であって、前記蓋材は、平面視方向においては、一方の周縁に容器本体の周縁から外方に向かって突出する開封用タブと、他方の周縁に当該開封用タブと対向する位置に開口用のタブが設けられている略円形状の外郭形状を備えており、厚み方向においては、紙層と一軸延伸フィルムからなる基材とアルミニウム箔層と熱接着性樹脂層が積層された積層体の断面構造を備えており、容器本体の開口部を囲む環状帯状を成すフランジ部の平坦な上側表面にて、前記蓋材の熱接着性樹脂層の面と前記容器本体のフランジ部の平坦な上側表面とが接合状態とされることにより、前記蓋材が容器本体に対して装着され、容器本体に装着された状態において、容器本体から開口用タブを引っ張ることで積層体の全層を以って剥離可能とする全層剥離タイプの蓋材であって、当該開封用タブは、一軸延伸フィルムの延伸方向における一方の端部に、容器本体の周縁から外方に向かって突出する第一突出部を有しており、一軸延伸フィルムの延伸方向における他方の端部に、容器本体の周縁から外方に向かって突出する第二突出部を有しており、蓋材の周縁と開封用タブの前記第一突出部の周縁が繋がる部分を開封用タブの第一の付け根部分とし、蓋材の周縁と開封用タブの前記第二突出部の周縁が繋がる部分を開封用タブの第二の付け根部分とし、当該開封用タブの第一及び第二の付け根部分は蓋材の内方に突出し変曲点を備えた平面視アールを有する曲線状であり、当該開封用タブの第一及び第二の付け根部分に周縁に切り込みを設けることなく、当該開封用タブの第一又は第二の付け根部分より、前記一軸延伸フィルムの延伸方向に沿って前記積層体からなる蓋材を直線状に引裂くことにより、蓋材の一部を取り除いて振出口又は湯切口を形成することを可能としたことを特徴とする蓋材である。 Further, the present invention according to claim 2 is a lid member to be attached to a container body having a flange portion having a flat upper surface forming an annular belt shape and having a circular opening surrounded by the flange portion. In the plan view direction, the lid member has an opening tab that protrudes outward from the periphery of the container main body on one peripheral edge, and an opening tab at a position facing the opening tab on the other peripheral edge. It has a substantially circular outer shape provided with a tab, and in the thickness direction, a cross section of a laminate in which a paper layer, a base material composed of a uniaxially stretched film, an aluminum foil layer, and a heat-adhesive resin layer are laminated A flat upper surface of the flange portion having an annular band shape surrounding the opening of the container body, and a flat upper surface of the heat-adhesive resin layer of the lid and the flange portion of the container body And are brought into a joined state The cover member is mounted to the container body in the mounting state on the container body, the container body of the entire delamination type full thickness of the laminate and peelable I than by pulling the opening tab The opening tab has a first projecting portion projecting outward from the peripheral edge of the container body at one end in the stretching direction of the uniaxially stretched film, and the uniaxially stretched film. A second projecting portion projecting outward from the peripheral edge of the container main body, and the peripheral edge of the lid member and the peripheral edge of the first projecting portion of the opening tab are connected to the other end in the extending direction of The first base part of the opening tab is the part, the part where the peripheral edge of the lid is connected to the peripheral edge of the second protrusion of the opening tab is the second base part of the opening tab, and the opening tab The first and second roots protrude inward from the lid and bend A curved shape with a plan view radius having a without the first and second base portion of the opening tab provided with notches on the periphery, than the first or second base portion of the opening tab, It is possible to form a swing outlet or a hot water cut opening by removing a part of the lid material by tearing the lid material made of the laminate linearly along the stretching direction of the uniaxially stretched film. It is a lid material.
また、請求項３記載の本発明は、請求項１又は２に記載の蓋材を用いて、該蓋材の熱接着性樹脂層面を容器本体の開口部に当接させて前記蓋材を前記容器本体に熱接着した容器である。 Moreover, this invention of Claim 3 uses the lid | cover material of Claim 1 or 2, abutting the thermoadhesive resin layer surface of this lid | cover material on the opening part of a container main body, and the said lid | cover material A container thermally bonded to the container body.
本発明の蓋材は、環状帯状を成す平坦な上側表面を有するフランジ部を備え且つ前記フランジ部で囲まれた円形の開口部を有する容器本体に対して装着する蓋材であって、前記蓋材は、平面視方向においては、一方の周縁に容器本体の周縁から外方に向かって突出する開封用タブと、他方に周縁に当該開封用タブと対向する位置に開口用のタブが設けられている略円形状の外郭形状を備えており、厚み方向においては、紙層と一軸延伸フィルムからなる基材とアルミニウム箔層と熱接着性樹脂層が積層された積層体の断面構造を備えており、容器本体の開口部を囲む環状帯状を成すフランジ部の平坦な上側表面にて、前記蓋材の熱接着性樹脂層の面と前記容器本体のフランジ部の平坦な上側表面とが接合状態とされることにより、前記蓋材が容器本体に対して装着され、容器本体に装着された状態において、容器本体から開口用タブを引っ張ることで積層体の全層を以って剥離可能とする全層剥離タイプの蓋材であって、当該開封用タブは、一軸延伸フィルムの延伸方向における一方の端部に、容器本体の周縁から外方に向かって突出する第一突出部を有しており、蓋材の周縁と開封用タブの前記第一突出部の周縁が繋がる部分を開封用タブの第一の付け根部分とし、当該開封用タブの第一の付け根部分は蓋材の内方に突出し変曲点を備えた平面視アールを有する曲線状であり、当該開封用タブの第一の付け根部分に周縁に切り込みを設けることなく、当該開封用タブの第一の付け根部分より、前記一軸延伸フィルムの延伸方向に沿って前記積層体からなる蓋材を直線状に引裂くことにより、蓋材の一部を取り除いて振出口又は湯切口を形成することを可能とした構成とすることにより、開封用タブの付け根部分より一軸延伸フィルムの延伸方向に沿って積層体を直線状に容易に引裂くことができる。さらに、切り込みを設けることがないので容器本体と蓋材とが多少の位置ズレが生じても内容物が吸湿や酸化することがない。つまり、容器本体と蓋材とを熱接着する際に、容器本体と蓋材との位置ズレが許される許容範囲が広いものとなり熱接着する作業性が向上する。また、位置ズレ不良が低減され良品率の向上が図れる。さらに、切り込みがないので輸送中の振動や取扱い時の外力により蓋材が引裂かれることがない。 The lid material of the present invention is a lid material to be attached to a container main body having a flange portion having a flat upper surface having an annular belt shape and having a circular opening surrounded by the flange portion. In the plan view direction, the material is provided with an opening tab protruding outward from the periphery of the container body on one peripheral edge, and an opening tab on the other edge at a position facing the opening tab. It has a substantially circular outer shape, and in the thickness direction, it has a cross-sectional structure of a laminate in which a paper layer, a base material composed of a uniaxially stretched film, an aluminum foil layer, and a thermal adhesive resin layer are laminated. The surface of the heat-adhesive resin layer of the lid member and the flat upper surface of the flange portion of the container body are joined to each other at the flat upper surface of the flange portion that forms an annular band surrounding the opening of the container body. by being a, the lid member is Is attached to the vessel main body, in a state of being attached to the container body, a lid of the total delamination type that can be peeled off all the layers of the laminate I than by pulling the opening tab from the container body The opening tab has, at one end in the stretching direction of the uniaxially stretched film, a first protruding portion that protrudes outward from the periphery of the container body, and the opening tab and the opening tab The portion where the peripheral edge of the first protruding portion is connected is the first root portion of the opening tab, and the first root portion of the opening tab protrudes inward of the lid member and is a plan view provided with an inflection point. a curved shape having, without providing a notch in the peripheral edge to the first base portion of the opening tab, than the first base portion of the opening tab, the laminate along the stretching direction of the uniaxially stretched film Tear body lid material straight By removing the part of the cover material and forming a swing outlet or a hot water cut end, the laminate is linearly formed along the stretching direction of the uniaxially stretched film from the base portion of the opening tab. Can be easily torn. Furthermore, since no notch is provided, the contents do not absorb moisture or oxidize even if the container main body and the lid member are slightly misaligned. That is, when the container main body and the lid member are thermally bonded, the allowable range in which the positional deviation between the container main body and the lid member is allowed is widened, and the workability of the thermal bonding is improved. In addition, it is possible to reduce misalignment and improve the yield rate. Furthermore, since there is no notch, the lid is not torn by vibration during transportation or external force during handling.
また、環状帯状を成す平坦な上側表面を有するフランジ部を備え且つ前記フランジ部で囲まれた円形の開口部を有する容器本体に対して装着する蓋材であって、前記蓋材は、平面視方向においては、一方の周縁に容器本体の周縁から外方に向かって突出する開封用タブと、他方の周縁に当該開封用タブと対向する位置に開口用のタブが設けられている略円形状の外郭形状を備えており、厚み方向においては、紙層と一軸延伸フィルムからなる基材とアルミニウム箔層と熱接着性樹脂層が積層された積層体の断面構造を備えており、容器本体の開口部を囲む環状帯状を成すフランジ部の平坦な上側表面にて、前記蓋材の熱接着性樹脂層の面と前記容器本体のフランジ部の平坦な上側表面とが接合状態とされることにより、前記蓋材が容器本体に対して装着され、容器本体に装着された状態において、容器本体から開口用タブを引っ張ることで積層体の全層を以って剥離可能とする全層剥離タイプの蓋材であって、当該開封用タブは、一軸延伸フィルムの延伸方向における一方の端部に、容器本体の周縁から外方に向かって突出する第一突出部を有しており、一軸延伸フィルムの延伸方向における他方の端部に、容器本体の周縁から外方に向かって突出する第二突出部を有しており、蓋材の周縁と開封用タブの前記第一突出部の周縁が繋がる部分を開封用タブの第一の付け根部分とし、蓋材の周縁と開封用タブの前記第二突出部の周縁が繋がる部分を開封用タブの第二の付け根部分とし、当該開封用タブの第一及び第二の付け根部分は蓋材の内方に突出し変曲点を備えた平面視アールを有する曲線状であり、当該開封用タブの第一及び第二の付け根部分に周縁に切り込みを設けることなく、当該開封用タブの第一又は第二の付け根部分より、前記一軸延伸フィルムの延伸方向に沿って前記積層体からなる蓋材を直線状に引裂くことにより、蓋材の一部を取り除いて振出口又は湯切口を形成することを可能とした構成とすることにより、上記効果に加え、開封用タブが第一及び第二の突出部を有しているので開封用タブの第一及び第二の突出部のいずれからも付け根部分より容易に引裂くことができ、右利き、左利きの使用者に拘ることなく利便性を与えることが出来る。 Further, a lid to be mounted to the container main body having a circular opening surrounded by and said flange portion includes a flange portion having a flat upper surface which forms the annular band, the lid member in a plan view In the direction, the opening tab that protrudes outward from the periphery of the container body on one peripheral edge, and the opening tab is provided on the other peripheral edge at a position facing the opening tab. In the thickness direction, it has a cross-sectional structure of a laminate in which a paper layer, a base made of a uniaxially stretched film, an aluminum foil layer, and a heat-adhesive resin layer are laminated. By the flat upper surface of the flange portion that forms an annular band surrounding the opening, the surface of the heat-adhesive resin layer of the lid member and the flat upper surface of the flange portion of the container body are joined to each other the lid is on the container body Is to mounted in a state of being mounted on the container body, a lid of the total delamination type that can be peeled off all the layers of the laminate I than by pulling the opening tab from the container body, the opening The tab for use has the 1st protrusion part which protrudes toward the outward from the periphery of a container main body in one edge part in the extending direction of a uniaxially stretched film, and the other edge part in the extending direction of a uniaxially stretched film A second projecting portion projecting outward from the peripheral edge of the container body, and a portion where the peripheral edge of the lid member and the peripheral edge of the first projecting portion of the opening tab are connected to the first of the opening tab. A portion where the peripheral edge of the lid is connected to the peripheral edge of the second protrusion of the opening tab is the second root portion of the opening tab, and the first and second root portions of the opening tab are Plane view with inflection points protruding inward of the lid To a curved, without providing a notch in the periphery to the first and second base portion of the opening tab, than the first or second base portion of the opening tab, the stretching direction of the uniaxially stretched film In addition to the above-mentioned effect, the lid member made of the laminated body is torn along a straight line so that a part of the lid member can be removed to form a swing outlet or a hot water outlet. Since the opening tab has the first and second protrusions, the opening tab can be easily torn from the root part from both the first and second protrusions, and is right-handed and left-handed. Convenience can be given regardless of the user.
また、本発明の容器は、上記蓋材の熱接着性樹脂層面を容器本体の開口部に当接させて蓋材を容器本体に熱接着することにより、蓋材は上記効果を有するので容易に振出口又は排湯口を形成することができ、内容物を小出しにできる。例えば、チョコレート菓子、スナック菓子、焼き菓子、キャンデー、アイス等の粒状物を小出しにしたり、塩昆布、きざみ海苔等のふりかけ類を振出したりする容器として使用できる。あるいは、内容物にお湯を注ぎ一定時間調理するための容器に使用することができる。例えば、焼きそば等の湯戻し調理する即席麺等の食品容器に使用できる。 In addition, the container of the present invention can be easily obtained because the lid material has the above-mentioned effect by bringing the lid material into thermal contact with the container body by bringing the thermal adhesive resin layer surface of the lid material into contact with the opening of the container body. A swing outlet or a hot water outlet can be formed, and the contents can be dispensed. For example, it can be used as a container for dispensing granular items such as chocolate confectionery, snack confectionery, baked confectionery, candy, and ice cream, or sprinkling sprinkles such as salt kelp and chopped seaweed. Or it can be used for the container for pouring hot water into the contents and cooking for a certain period of time. For example, it can be used for food containers such as instant noodles for hot-boiled cooking such as fried noodles.
上記の本発明について、図面等を用いて以下に詳述する。
図１は本発明に係る蓋材を構成する積層体の一構成例を示す断面図、図２は本発明に係る蓋材の第一実施形態を示す平面図、図３は第一実施形態の蓋材を容器本体に熱接着した容器を示す斜視図、図４は本発明に係る容器の蓋材を引裂き振出口を形成した状態を示す斜視図、図５は本発明に係る蓋材の第二実施形態を示す平面図であり、図中の１、１’は蓋材、２は容器本体、３は容器、１０は積層体、１１は紙層、１２は一軸延伸フィルムからなる基材、１３はアルミニウム箔層、１４は熱接着性樹脂層、１５は開封用タブ、１５ａは付け根部分、１５ｂは両端突出部、１６、１９は切り取り予定線、１７は開口用タブ、１８は開封用小タブ、１８ａは付け根部分、２０は開口部、２１はフランジ、２２は振出口をそれぞれ示す。
The above-described present invention will be described in detail below with reference to the drawings.
FIG. 1 is a cross-sectional view showing one structural example of a laminate constituting the lid according to the present invention, FIG. 2 is a plan view showing a first embodiment of the lid according to the present invention, and FIG. 3 is a diagram of the first embodiment. FIG. 4 is a perspective view showing a state in which the lid of the container according to the present invention is formed by tearing the lid of the container according to the present invention, and FIG. 5 is a perspective view of the lid according to the present invention. It is a top view which shows two embodiment, 1, 1 'in a figure is a lid | cover material, 2 is a container main body, 3 is a container, 10 is a laminated body, 11 is a paper layer, 12 is a base material consisting of a uniaxially stretched film, 13 is an aluminum foil layer, 14 is a heat-adhesive resin layer, 15 is a tab for opening, 15a is a base portion, 15b is a protruding portion at both ends, 16 and 19 are cut lines, 17 is a tab for opening, and 18 is a small opening A tab, 18a is a root portion, 20 is an opening, 21 is a flange, and 22 is a swing outlet.
図１、図２は本発明に係る蓋材１の第一実施形態を示す。図３は第一実施形態の蓋材１を容器本体２に熱接着した容器３を示す斜視図である。図４は第一実施形態の蓋材１を備えた本発明に係る容器３において蓋材１を引裂き振出口２２を形成した状態を示す斜視図であり、図３において蓋材１の開封用タブの付け根部分より切り取り予定線に沿って積層体を直線状に引裂き容器に振出口を形成した状態を示すものである。図１〜図４を参照しながら本発明の第一実施形態の蓋材１及び容器３について説明する。図１に示すように本発明の蓋材１は、紙層１１と一軸延伸フィルムからなる基材１２とアルミニウム箔層１３と熱接着性樹脂層１４が積層された積層体１０からなる。 1 and 2 show a first embodiment of a lid 1 according to the present invention. FIG. 3 is a perspective view showing the container 3 in which the lid member 1 of the first embodiment is thermally bonded to the container body 2. FIG. 4 is a perspective view showing a state in which the lid member 1 is torn in the container 3 according to the present invention having the lid member 1 of the first embodiment, and a swing outlet 22 is formed. In FIG. FIG. 2 shows a state in which a laminated body is linearly cut along a planned cut line from a base portion and a swing outlet is formed in a container. The lid 1 and the container 3 according to the first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the lid 1 according to the present invention includes a laminate 10 in which a paper layer 11, a base material 12 made of a uniaxially stretched film, an aluminum foil layer 13, and a thermal adhesive resin layer 14 are laminated.
図２に示すように蓋材１は、略円形状であって、一方の周縁に容器本体の周縁から外方に向かって突出する開封用タブ１５と、他方の周縁に開封用タブ１５と対向する位置に開口用タブ１７が設けられている。開封用タブ１５は、付け根部分１５ａ、１５ａより容器本体の周縁から両端部が外方に向かって突出する両端突出部１５ｂ、１５ｂを有する形状である。また、開封用タブ１５には、付け根部分１５ａ、１５ａを結ぶ直線状の切り取り予定線１６が設けられている。さらに直線状の切り取り予定線１６の方向は、一軸延伸フィルムからなる基材１２（図１参照）の一軸延伸フィルムの延伸方向（図２における矢印）と同一方向とされている。このような構成とすることにより、開封用タブ１５の一方の付け根部分１５ａより切り取り予定線１６に沿って他方の付け根部分１５ａまで積層体１０からなる蓋材１を直線状に引裂くことが可能となるものである。なお、開封用タブ１５の構成は、両端突出部１５ｂ、１５ｂに限定されるものではなく、突出部を一方のみにすることもできるが、両端にする方が両端突出部１５ｂ、１５ｂのいずれからも付け根部分１５ａより引裂くことができ容易に振出口２２（図４参照）を形成することができ、右利き、左利きの使用者に拘ることなく利便性を与えることが出来、好ましい形態である。 As shown in FIG. 2, the lid member 1 has a substantially circular shape, and has an opening tab 15 that protrudes outward from the periphery of the container body on one peripheral edge, and an opening tab 15 that faces the other peripheral edge. An opening tab 17 is provided at a position to be opened. The unsealing tab 15 has a shape having both end protruding portions 15b and 15b protruding from the base portions 15a and 15a toward the outside from the periphery of the container body. Further, the opening tab 15 is provided with a straight cut line 16 connecting the base portions 15a and 15a. Furthermore, the direction of the linear cut planned line 16 is the same as the stretching direction (arrow in FIG. 2) of the uniaxially stretched film of the substrate 12 (see FIG. 1) made of the uniaxially stretched film. By adopting such a configuration, it is possible to tear the lid 1 made of the laminate 10 linearly along the planned cutting line 16 from the one base portion 15a of the opening tab 15 to the other base portion 15a. It will be. In addition, the structure of the tab 15 for opening is not limited to both end protrusion parts 15b and 15b, Although a protrusion part can also be made into only one side, the direction made into both ends is from either of both end protrusion parts 15b and 15b. It can be torn from the base portion 15a, can easily form the swing outlet 22 (see FIG. 4), can provide convenience regardless of right-handed and left-handed users, and is a preferred form. .
図３、図４に示すように蓋材１は、上方に円形の開口部２０と開口部２０の周縁にフランジ２１を備えた容器本体２のフランジ２１に蓋材１の熱接着性樹脂層１４面を当接させて熱接着し、開口部２０を被覆して密封され、本発明の容器３とされる。なお、容器本体２は、上方に開口部を有する逆円錐台のカップ状を例示したが、角形でもよい。角形の容器本体の場合、用いる蓋材は容器本体の周縁と略同じ大きさとし、隅部に容器本体の周縁から外方に向かって突出する開封用タブを設け、隅角に振出口を形成する構成にすればよい。ただし、一軸延伸フィルムの延伸方向と開封用タブの付け根部分より設ける直線状の切り取り予定線の方向が同一方向となるようにすることが肝要である。 As shown in FIGS. 3 and 4, the lid member 1 has a circular opening 20 on the upper side and a flange 21 of the container body 2 provided with a flange 21 on the periphery of the opening 20. The surfaces are brought into contact with each other and thermally bonded, and the opening 20 is covered and sealed to form the container 3 of the present invention. In addition, although the container main body 2 illustrated the cup shape of the inverted truncated cone which has an opening part upwards, a square shape may be sufficient. In the case of a rectangular container body, the lid material to be used is approximately the same size as the peripheral edge of the container main body, an opening tab that protrudes outward from the peripheral edge of the container main body is provided at the corner, and a swing outlet is formed at the corner. What is necessary is just composition. However, it is important that the stretching direction of the uniaxially stretched film and the direction of the straight cut-out line provided from the base portion of the opening tab are the same direction.
本発明の蓋材１を構成する積層体１０としては、一方向に延伸した一軸延伸フィルムからなる基材を含んでいることを一つの特徴とするものである。また、積層体１０には二軸延伸されたフィルムを含んでいない構成がより好ましく、開封用タブより一軸延伸フィルムの延伸方向に沿って直線引裂きが、一層優れたものとなる。さらに開封用タブ１５の付け根部分１５ａは蓋材1の内方に突出し当該部分を変曲点又は屈曲点とする平面視アールを有する曲線状又はＶ字状にすることが好ましい。そうすることにより、開封用タブ１５の付け根１５ａより蓋材１を切り取り予定線に沿って直線状に引裂くことができると共に従来のように切り込みがないので容器の輸送中の振動や取扱い時の外力により蓋材１が付け根部分１５ａから引裂かれることが防げる。さらには、切り込みを設けていないので容器本体２と蓋材１とを熱接着する際に、容器本体２と蓋材１との位置ズレが許される許容範囲が広いものとなり熱接着する作業が向上する。また、位置ズレ不良が低減され良品率の向上が図れる。なお、付け根部分とは、蓋材の周縁と開封用タブの周縁との変曲点乃至該変曲点を含む近傍をいう。ただし、付け根部分をアールにせず、屈曲させる場合には屈曲点をいう。 One feature of the laminate 10 constituting the lid 1 of the present invention is that it includes a base material made of a uniaxially stretched film stretched in one direction. Moreover, the structure which does not contain the film biaxially stretched in the laminated body 10 is more preferable, and a linear tear along the extending | stretching direction of a uniaxially stretched film becomes more excellent than the opening tab. Furthermore, it is preferable that the base portion 15a of the opening tab 15 protrudes inward of the lid member 1 and has a curved shape or a V shape having a planar view radius with the portion as an inflection point or a bending point. By doing so, it is possible to tear the lid 1 straight from the base 15a of the unsealing tab 15 along the planned cut line, and there is no notch as in the conventional case. The lid member 1 can be prevented from being torn from the base portion 15a by an external force. Furthermore, since no notch is provided, when the container body 2 and the lid material 1 are thermally bonded, there is a wide allowable range in which the positional deviation between the container body 2 and the lid material 1 is allowed, and the work for thermal bonding is improved. To do. In addition, it is possible to reduce misalignment and improve the yield rate. The root portion refers to an inflection point between the periphery of the lid member and the periphery of the opening tab or the vicinity including the inflection point. However, when the base portion is bent without being rounded, it is a bending point.
積層体１０を構成する一軸延伸フィルムからなる基材１２しては、一軸延伸ポリエチレンフィルム（例えば、電気化学工業株式会社製：カラリアンＹ、）、一軸延伸ポリプロピレンフィルム（例えば、東レ株式会社製：トレファンＹＴ）、一軸延伸ポリエステルフィルム（例えば、ユニチカ株式会社製：エンブレットＰＣ）、一軸延伸ナイロンフィルム（例えば、ユニチカ株式会社製：エンブレムＮＣ）等を使用することができる。厚さは、通常、６〜５０μｍであり、より好ましくは１２〜４０μｍである。また、積層体１０において一軸延伸フィルムからなる基材１２の積層順は最内面（容器本体と対向する面）以外であれば特に限定されるものではない。紙層１１には坪量４０ｇ／ｍ2 〜１００ｇ／ｍ 2の上質紙、クラフト紙、コート紙等を用いることができる。アルミニウム箔層１３には、厚さ５〜２０μｍの軟質、硬質、半硬質あるいは合金箔が用いられる。熱接着性樹脂層１４には容器本体２と熱接着性を有する樹脂、例えば、低密度ポリエチレン、中密度ポリエチレン、高密度ポリエチレン、直鎖状（線状）低密度ポリエチレン、ポリプロピレン、エチレン−αオレフィン共重合体、エチレン−プロピレン共重合体、エチレン−酢酸ビニル共重合体、アイオノマー樹脂、エチレンとアクリル酸との酸コポリマー、エチレンとアクリル酸エステルとのエステルコポリマー等の周知の熱接着性樹脂やエチレン／酢酸ビニル共重合体、あるいは上記の樹脂にポリスチレンやポリブデン等を混合した樹脂等の容器本体と易剥離性を有する樹脂が使用でき、容器本体の樹脂の種類と要求される容器本体との接着強度を勘案し、適宜選択される。各層の積層方法としてはドライラミネーション法やサンドイッチラミネーション法等の周知の積層方法を用いればよく、また熱接着性樹脂層１４についてはエクストルージョンラミネーション法で積層してもよい。 As the base material 12 made of a uniaxially stretched film constituting the laminate 10, a uniaxially stretched polyethylene film (for example, manufactured by Denki Kagaku Kogyo Co., Ltd .: Callarian Y), a uniaxially stretched polypropylene film (for example, manufactured by Toray Industries, Inc .: Toray Co., Ltd.) Fan YT), uniaxially stretched polyester film (for example, manufactured by Unitika Ltd .: Emblet PC), uniaxially stretched nylon film (for example, manufactured by Unitika Ltd .: Emblem NC) and the like can be used. The thickness is usually 6 to 50 μm, more preferably 12 to 40 μm. In addition, the order of lamination of the base material 12 made of a uniaxially stretched film in the laminate 10 is not particularly limited as long as it is other than the innermost surface (the surface facing the container body). The paper layer 11 can be used high-quality paper having a basis weight 40g / m 2 ~100g / m 2 , kraft paper, coated paper or the like. The aluminum foil layer 13 is made of a soft, hard, semi-hard or alloy foil having a thickness of 5 to 20 μm. The thermal adhesive resin layer 14 is a resin having thermal adhesiveness with the container body 2, for example, low density polyethylene, medium density polyethylene, high density polyethylene, linear (linear) low density polyethylene, polypropylene, ethylene-α olefin. Known thermal adhesive resins such as copolymers, ethylene-propylene copolymers, ethylene-vinyl acetate copolymers, ionomer resins, ethylene-acrylic acid acid copolymers, ethylene-acrylic acid ester copolymers, and ethylene / Vinyl acetate copolymer, or a container body such as a resin in which polystyrene or polybuden is mixed with the above resin can be used and easily peelable resin, and the type of resin of the container body and the required adhesion between the container body It is selected as appropriate in consideration of strength. As a method for laminating each layer, a known laminating method such as a dry lamination method or a sandwich lamination method may be used, and the thermal adhesive resin layer 14 may be laminated by an extrusion lamination method.
つぎに積層体１０の代表的な構成例を示すと＜紙層１１／一軸延伸フィルム１２／アルミニウム箔層１３／熱接着性樹脂層１４＞、＜紙層１１／アルミニウム箔層１３／一軸延伸フィルム１２／熱接着性樹脂層１４＞、＜一軸延伸フィルム１２／紙層１１／アルミニウム箔層１３／熱接着性樹脂層１４＞等が例示される。また、紙層１１または一軸延伸フィルム１２には通常、印刷層が設けられる。 Next, a typical configuration example of the laminate 10 is shown as <paper layer 11 / uniaxially stretched film 12 / aluminum foil layer 13 / thermoadhesive resin layer 14>, <paper layer 11 / aluminum foil layer 13 / uniaxially stretched film. 12 / thermal adhesive resin layer 14>, <uniaxially stretched film 12 / paper layer 11 / aluminum foil layer 13 / thermal adhesive resin layer 14>, and the like. The paper layer 11 or the uniaxially stretched film 12 is usually provided with a printing layer.
容器本体２としては、少なくとも内面に熱可塑性樹脂が積層された紙カップ、紙容器や、ポリスチレン、ポリエチレン、ポリポロピレン等からなる発泡容器や、ポリエチレン、ポリプロピレン、ポリエステル、ポリアクリロニトリル、ポリスチレン等の樹脂からなるシート成形品若しくは射出成形品等が使用できる。 The container body 2 includes a paper cup, a paper container, a foam container made of polystyrene, polyethylene, polypropylene, etc., a sheet made of resin such as polyethylene, polypropylene, polyester, polyacrylonitrile, polystyrene, etc. Molded products or injection molded products can be used.
つぎに図３、図４を参照しながら、蓋材１を用いた容器３の使用方法について説明する。図３に示すように蓋材１の両端突出部１５ｂの一方を摘み引っ張り上げると付け根部分１５ａより開封が開始され、一軸延伸フィルムの延伸方向（図３中の矢印）と切取り予定線１６の方向が同一方向とされているので蓋材１が切り取り予定線１６に沿って直線状に引裂かれ切取られると、図４に示すように振出口２２が形成される。該振出口２２より例えば、ポテトチップ、チョコチップ、ふりかけ等の内容物を必要とする量を小出しできる。
また、別の使用方法として、例えば、内容物が即席焼そばの場合には、開口用タブ１７を摘み、蓋材１を容器本体２より剥離して容器３を一部開口して注湯口（図示しない）とし、この注湯口より熱湯を注ぎ、剥離した蓋材１を元に戻して注湯口を再封して所定時間調理（湯戻し）した後、蓋材１の両端突出部１５ｂの一方を摘み引っ張り上げ、付け根部分１５ａより切取り予定線１６に沿って直線状に引裂かれ切取られると振出口２２が形成される。この振出口２２を湯切り口として、容器３を傾けて余剰の湯を捨てた後、再び開口用タブ１７を摘み、蓋材１を容器本体２より剥離し取り除くと調理された内容物を食することができる。
Next, a method of using the container 3 using the lid 1 will be described with reference to FIGS. 3 and 4. As shown in FIG. 3, when one end of both end projecting portions 15b of the lid member 1 is picked and pulled, opening is started from the base portion 15a, and the stretching direction of the uniaxially stretched film (arrow in FIG. 3) and the direction of the planned cut line 16 4 are formed in the same direction, the lid member 1 is torn linearly along the planned cut line 16 and cut off, thereby forming a swing outlet 22 as shown in FIG. For example, a necessary amount of contents such as potato chips, chocolate chips, and sprinkles can be dispensed from the shaker outlet 22.
As another usage method, for example, when the contents are instant yakisoba, the tab 17 for opening is picked, the lid material 1 is peeled off from the container main body 2 and the container 3 is partially opened, and the pouring gate ( And hot water is poured from the pouring port, the peeled lid member 1 is returned to its original position, the pouring port is resealed and cooked for a predetermined time (hot water reconstitution). Is pulled up and pulled out along the planned cut line 16 from the base portion 15a and cut out to form a swing outlet 22. Using the outlet 22 as a hot water outlet, the container 3 is tilted to discard excess hot water, and then the opening tab 17 is picked again, and the lid 1 is peeled off and removed from the container body 2 to eat the cooked contents. be able to.
図５は本発明に係る蓋材の第二実施形態を示す平面図である。図５に示すように第二実施形態の蓋材１’は、第一実施形態の蓋材１の開封用タブ１５の両端突出部１５ｂ、１５ｂに隣接して、開口用タブ１７側に容器本体２の周縁から外方に向かって突出する開封用小タブ１８、１８が設けられている。開封用小タブ１８、１８は、開口用タブ１７側の付け根部分１８ａ、１８ａを結ぶ直線状の切り取り予定線１９が設けられた構成である。その他は第一実施形態と同じであり、同符号を付し説明を省略する。第二実施形態の蓋材１’は切り取り予定線１６、１９が設けられているので、小さな振出口にしたい場合には、切り取り予定線１６に沿って蓋材１’を切り取ればよく、大きな振出口にしたい場合には切り取り予定線１９に沿って蓋材１’を切り取ればよく、使用者のニーズにより振出口の大きさが選択でき、利便性を提供するものである。なお、直線状の切り取り予定線１９の方向は、一軸延伸フィルムからなる基材１２の一軸延伸フィルムの延伸方向（図５中の矢印）と同一方向とされているので開封用小タブ１８を摘み、一方の付け根部分１８ａより切り取り予定線１９に沿って他方の付け根部分１８ａまで積層体１０からなる蓋材１を直線状に引裂くことが可能となり、大きな振出口を形成することができるものである。 FIG. 5 is a plan view showing a second embodiment of the lid according to the present invention. As shown in FIG. 5, the lid member 1 ′ of the second embodiment is adjacent to the projecting portions 15 b and 15 b of the opening tab 15 of the lid member 1 of the first embodiment, and on the opening tab 17 side. Small opening tabs 18, 18 projecting outward from the peripheral edge of 2 are provided. The small opening tabs 18 and 18 have a configuration in which a straight cut-out line 19 connecting the base portions 18a and 18a on the opening tab 17 side is provided. Others are the same as those of the first embodiment, and the same reference numerals are given and description thereof is omitted. Since the cover material 1 ′ of the second embodiment is provided with the planned cut lines 16, 19, when it is desired to make a small swing outlet, the cover material 1 ′ may be cut along the planned cut line 16, When the outlet is desired, the lid 1 'may be cut along the planned cut line 19, and the size of the swing outlet can be selected according to the needs of the user, thereby providing convenience. The direction of the straight cut line 19 is the same as the stretching direction of the uniaxially stretched film of the substrate 12 made of a uniaxially stretched film (arrow in FIG. 5). It is possible to tear the lid 1 made of the laminate 10 from one base portion 18a along the planned cut line 19 to the other base portion 18a in a straight line, thereby forming a large swing outlet. is there.
次に、本発明について以下に実施例を挙げてさらに詳しく説明する。 Next, the present invention will be described in more detail with reference to examples.
片面コート紙７９．１ｇ／ｍ2 のコート面にウレタン系のグラビアインキを用いて所定の絵柄をグラビア印刷機により印刷形成した。次に一軸延伸フィルムからなる基材として厚さ１８μｍの両面コロナ処理を施した一軸延伸高密度ポリエチレンフィルム（ＨＤＰＥ／電気化学工業株式会社製：カラリアンＹ）を用いてポリエステル−イソシアネート系接着剤を介して片面コート紙の印刷面と反対側の面とをドライラミネーション法（ＤＬ）により貼合し、さらにＨＤＰＥ面に厚さ７μｍのアルミニウム箔（ＡＬＭ）をポリエステル−イソシアネート系接着剤を介してドライラミネーション法で貼合した。その後、アルミニウム箔面に熱接着性樹脂層としてエチレン−メタクリル酸共重合体（ＥＭＡＡ）を用いて、ＥＭＡＡを熱溶融させながらラミネーション法で厚さ３０μｍを積層し、＜印刷／片面コート紙７９．１ｇ／ｍ2 ／ＤＬ／ＨＤＰＥ１８μｍ／ＤＬ／ＡＬＭ７μｍ／ＥＭＡＡ３０μｍ＞なる構成の積層体の巻取を作製した。次に、積層体の巻取を所定寸法に枚葉断裁、小断した。所定形状を有する抜き型を搭載した打抜き機で打抜き図２に示す形状の蓋材１を作製した。なお、ＨＤＰＥの延伸方向と切り取り予定線の方向は同一方向になるようにした。 A predetermined pattern was printed and formed on a coated surface of one-side coated paper 79.1 g / m 2 using a urethane gravure ink by a gravure printing machine. Next, a uniaxially stretched high-density polyethylene film (HDPE / manufactured by Denki Kagaku Kogyo Co., Ltd .: Calarian Y) subjected to double-sided corona treatment with a thickness of 18 μm is used as a base material composed of a uniaxially stretched film via a polyester-isocyanate adhesive. Then, the printed side of the single-sided coated paper is bonded to the opposite side by the dry lamination method (DL), and an aluminum foil (ALM) with a thickness of 7 μm is further bonded to the HDPE surface via a polyester-isocyanate adhesive. Bonded by law. Thereafter, using an ethylene-methacrylic acid copolymer (EMAA) as a heat-adhesive resin layer on the aluminum foil surface, a thickness of 30 μm was laminated by a lamination method while thermally melting EMAA. <Printing / single-sided coated paper 79. Winding of the laminated body of the structure of 1g / m < 2 > / DL / HDPE18micrometer / DL / ALM7micrometer / EMAA30micrometer> was produced. Next, the winding of the laminated body was cut into pieces and cut into predetermined dimensions. Punched with a punching machine equipped with a punching die having a predetermined shape, a lid 1 having the shape shown in FIG. 2 was produced. In addition, the extending direction of HDPE and the direction of the planned cut line were set to be the same direction.
つぎに、上方に円形の開口部と開口部の周縁にフランジを有するカップ形状の発泡スチロール製容器本体を用いて、該容器本体にチョコチップを充填し、上記蓋材１のＥＭＡＡ面を容器本体のフランジに当接させて熱接着して密封し、図３に示す容器３を作製した。 Next, using a cup-shaped foamed polystyrene container body having a circular opening at the top and a flange at the periphery of the opening, the container body is filled with chocolate chips, and the EMAA surface of the lid 1 is placed on the container body. The container 3 shown in FIG. 3 was produced by abutting against the flange and thermally bonding and sealing.
上記で作製した実施例１の容器について蓋材の両端突出部の一方を摘み引っ張り上げると付け根部分より開封が開始され、蓋材１が切り取り予定線に沿って直線状に引裂かれ切取ることができた。そして、形成された振出口よりチョコチップを必要とする量を振出し小出しすることができた。 When the container of Example 1 prepared above is picked and pulled up at one of the protruding portions at both ends of the lid, opening is started from the base portion, and the lid 1 is torn and cut linearly along the planned cut line. did it. And the quantity which requires a chocolate chip | tip was able to be shaken out from the formed outlet.
１、１’ 蓋材
２ 容器本体
３ 容器
１０ 積層体
１１ 紙層
１２ 一軸延伸フィルムからなる基材
１３ アルミニウム箔層
１４ 熱接着性樹脂層
１５ 開封用タブ
１５ａ、１８ａ 付け根部分
１５ｂ 両端突出部
１６、１９ 切り取り予定線
１７ 開口用タブ
１８ 開封用小タブ
２０ 開口部
２１ フランジ
２２ 振出口
DESCRIPTION OF SYMBOLS 1, 1 'Cover material 2 Container main body 3 Container 10 Laminated body 11 Paper layer 12 Base material consisting of uniaxially stretched film 13 Aluminum foil layer 14 Thermal adhesive resin layer 15 Opening tab 15a, 18a Base part 15b Both-ends protrusion part 16, 19 Cut line 17 Tab for opening 18 Small tab for opening 20 Opening 21 Flange 22 Swing outlet
Claims (3)
前記蓋材は、平面視方向においては、一方の周縁に容器本体の周縁から外方に向かって突出する開封用タブと、他方の周縁に当該開封用タブと対向する位置に開口用のタブが設けられている略円形状の外郭形状を備えており、厚み方向においては、紙層と一軸延伸フィルムからなる基材とアルミニウム箔層と熱接着性樹脂層が積層された積層体の断面構造を備えており、
容器本体の開口部を囲む環状帯状を成すフランジ部の平坦な上側表面にて、前記蓋材の熱接着性樹脂層の面と前記容器本体のフランジ部の平坦な上側表面とが接合状態とされることにより、前記蓋材が容器本体に対して装着され、
容器本体に装着された状態において、容器本体から開口用タブを引っ張ることで積層体の全層を以って剥離可能とする全層剥離タイプの蓋材であって、
当該開封用タブは、
一軸延伸フィルムの延伸方向における一方の端部に、容器本体の周縁から外方に向かって突出する第一突出部を有しており、蓋材の周縁と開封用タブの前記第一突出部の周縁が繋がる部分を開封用タブの第一の付け根部分とし、当該開封用タブの第一の付け根部分は蓋材の内方に突出し変曲点を備えた平面視アールを有する曲線状であり、当該開封用タブの第一の付け根部分に周縁に切り込みを設けることなく、
当該開封用タブの第一の付け根部分より、前記一軸延伸フィルムの延伸方向に沿って前記積層体からなる蓋材を直線状に引裂くことにより、蓋材の一部を取り除いて振出口又は湯切口を形成することを可能としたことを特徴とする蓋材。 A lid member that has a flange portion having a flat upper surface forming an annular belt shape and is attached to a container body having a circular opening surrounded by the flange portion,
In the plan view direction, the lid member has an opening tab protruding outward from the periphery of the container body on one peripheral edge, and an opening tab on the other peripheral edge in a position facing the opening tab. It has a substantially circular outer shape provided, and in the thickness direction, it has a cross-sectional structure of a laminate in which a paper layer, a base material composed of a uniaxially stretched film, an aluminum foil layer, and a thermal adhesive resin layer are laminated. Has
At the flat upper surface of the flange portion that forms an annular band surrounding the opening of the container main body, the surface of the thermoadhesive resin layer of the lid member and the flat upper surface of the flange portion of the container main body are joined. The lid is attached to the container body,
In a state of being attached to the container body, it is a cover material of an all-layer peeling type that can be peeled off with all the layers of the laminate by pulling the opening tab from the container body,
The opening tab is
At one end in the stretching direction of the uniaxially stretched film, it has a first projecting portion projecting outward from the periphery of the container body, and the periphery of the lid member and the first projecting portion of the opening tab The portion where the periphery is connected is the first root portion of the opening tab, and the first root portion of the opening tab is in a curved shape having a rounded plan view with an inflection point protruding inward of the lid, Without providing a cut at the periphery of the first root portion of the opening tab,
From the first base portion of the unsealing tab, the lid member made of the laminate is linearly cut along the stretching direction of the uniaxially stretched film, so that a part of the lid member is removed and the swing outlet or hot water is removed. A lid material characterized in that a cut can be formed.
前記蓋材は、平面視方向においては、一方の周縁に容器本体の周縁から外方に向かって突出する開封用タブと、他方の周縁に当該開封用タブと対向する位置に開口用のタブが設けられている略円形状の外郭形状を備えており、厚み方向においては、紙層と一軸延伸フィルムからなる基材とアルミニウム箔層と熱接着性樹脂層が積層された積層体の断面構造を備えており、
容器本体の開口部を囲む環状帯状を成すフランジ部の平坦な上側表面にて、前記蓋材の熱接着性樹脂層の面と前記容器本体のフランジ部の平坦な上側表面とが接合状態とされることにより、前記蓋材が容器本体に対して装着され、
容器本体に装着された状態において、容器本体から開口用タブを引っ張ることで積層体の全層を以って剥離可能とする全層剥離タイプの蓋材であって、
当該開封用タブは、
一軸延伸フィルムの延伸方向における一方の端部に、容器本体の周縁から外方に向かって突出する第一突出部を有しており、一軸延伸フィルムの延伸方向における他方の端部に、容器本体の周縁から外方に向かって突出する第二突出部を有しており、蓋材の周縁と開封用タブの前記第一突出部の周縁が繋がる部分を開封用タブの第一の付け根部分とし、蓋材の周縁と開封用タブの前記第二突出部の周縁が繋がる部分を開封用タブの第二の付け根部分とし、
当該開封用タブの第一及び第二の付け根部分は蓋材の内方に突出し変曲点を備えた平面視アールを有する曲線状であり、当該開封用タブの第一及び第二の付け根部分に周縁に切り込みを設けることなく、
当該開封用タブの第一又は第二の付け根部分より、前記一軸延伸フィルムの延伸方向に沿って前記積層体からなる蓋材を直線状に引裂くことにより、蓋材の一部を取り除いて振出口又は湯切口を形成することを可能としたことを特徴とする蓋材。 A lid member that has a flange portion having a flat upper surface forming an annular belt shape and is attached to a container body having a circular opening surrounded by the flange portion,
In the plan view direction, the lid member has an opening tab protruding outward from the periphery of the container body on one peripheral edge, and an opening tab on the other peripheral edge in a position facing the opening tab. It has a substantially circular outer shape provided, and in the thickness direction, it has a cross-sectional structure of a laminate in which a paper layer, a base material composed of a uniaxially stretched film, an aluminum foil layer, and a thermal adhesive resin layer are laminated. Has
At the flat upper surface of the flange portion that forms an annular band surrounding the opening of the container main body, the surface of the thermoadhesive resin layer of the lid member and the flat upper surface of the flange portion of the container main body are joined. The lid is attached to the container body,
In a state of being attached to the container body, it is a cover material of an all-layer peeling type that can be peeled off with all the layers of the laminate by pulling the opening tab from the container body,
The opening tab is
At one end in the stretching direction of the uniaxially stretched film, the container body has a first projecting portion that projects outward from the periphery of the container body, and at the other end in the stretching direction of the uniaxially stretched film. A second projecting portion projecting outward from the peripheral edge of the lid, and a portion where the peripheral edge of the lid and the peripheral edge of the first projecting portion of the opening tab are connected is defined as a first root portion of the opening tab. The portion where the periphery of the lid and the periphery of the second protrusion of the opening tab are connected is the second root portion of the opening tab,
The first and second root portions of the opening tab are in a curved shape having a rounded plan view with an inflection point protruding inward of the lid , and the first and second root portions of the opening tab. Without making a cut in the periphery,
From the first or second base portion of the unsealing tab, the lid member made of the laminate is linearly cut along the stretching direction of the uniaxially stretched film to remove a part of the lid member and vibrate. A lid material characterized in that it is possible to form an outlet or a hot water cut.
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| JP2009199393A JP5916979B2 (en) | 2009-08-31 | 2009-08-31 | Lid and container using the same |
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| JP2015232779A Division JP6135877B2 (en) | 2015-11-30 | 2015-11-30 | Lid and container using the same |
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| JP5916979B2 true JP5916979B2 (en) | 2016-05-11 |
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| JP5974468B2 (en) * | 2011-12-08 | 2016-08-23 | 凸版印刷株式会社 | Partially opening lid material and packing material for storing granular material using the same |
| WO2015033758A1 (en) * | 2013-09-03 | 2015-03-12 | マルハニチロ株式会社 | Easy opening container |
| JP6744866B2 (en) * | 2015-10-09 | 2020-08-19 | スナックトップス インコーポレイテッドＳｎａｃｋｔｏｐｓ， Ｉｎｃ． | Food container with sealing cover |
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| JP2001240149A (en) * | 2000-02-29 | 2001-09-04 | Sanyo Shokuhin Kk | Storage container for instant noodle |
| JP2002302154A (en) * | 2001-01-19 | 2002-10-15 | Kagawa Atsuko | Easy-to-unseal nonmetallic container and instant food put in the container |
| JP2004224360A (en) * | 2003-01-20 | 2004-08-12 | Dainippon Printing Co Ltd | Lid for instant food container |
| JP4542348B2 (en) * | 2004-01-27 | 2010-09-15 | 共同印刷株式会社 | Lid material |
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