JP2014169103A - Paper cup container - Google Patents

Paper cup container Download PDF

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JP2014169103A
JP2014169103A JP2013041564A JP2013041564A JP2014169103A JP 2014169103 A JP2014169103 A JP 2014169103A JP 2013041564 A JP2013041564 A JP 2013041564A JP 2013041564 A JP2013041564 A JP 2013041564A JP 2014169103 A JP2014169103 A JP 2014169103A
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body member
trunk
paper cup
cup container
blank
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Akira Watanabe
晃 渡邉
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Toppan Inc
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Toppan Printing Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a paper cup container which has resistance even to getting-wet from outside such as use in the vicinity of water and also has resealability.SOLUTION: A paper cup container comprises: a cylindrical body member; a bottom member; and a top member having a resealable taking-out port. The body member has: a body member-bonded part in which both end edges of a blank for the body member are overlapped to seal; a lower folding part formed at the lower end of the body member by folding the blank for the body member inside; and an upper folding part formed by folding the end of the folded blank inside. The bottom member has a peripheral edge folding part folding down the peripheral edge of the blank for the bottom member. The peripheral edge folding part is inserted in between the lower end of the body member and the upper folding part to be sealed. The top member covers the end of the body member to be fused.

Description

本発明は、紙カップ容器に関するものである。   The present invention relates to a paper cup container.

従来から、底部材の周縁部を折り曲げ、起立部を設け、筒形状の胴部材の下端内側に挿入し、胴部材を底部材の起立部に重なるように折り曲げて取り付け、胴部材の上端は外側にカールさせ、トップカール部を設けた紙カップがあり、この紙カップは、ジュース、炭酸飲料などのコールド飲料や、コーヒー、ココアなどのホット飲料のカップとして店頭での販売や、カップベンダーでの販売に広く用いられている。   Conventionally, the peripheral edge of the bottom member is bent, an upright portion is provided, inserted into the lower end inside the cylindrical body member, the body member is bent and attached so as to overlap the upright portion of the bottom member, and the upper end of the body member is outside There is a paper cup with a top curl section, and this paper cup can be sold in stores or as a cup vendor for cold drinks such as juice and carbonated drinks and hot drinks such as coffee and cocoa. Widely used.

また、紙カップの開口部を蓋材などで密封した紙カップ容器も密封容器としても多く使用されている。このような紙カップ容器としては、トップカール部にフィルム状の蓋材をシールした紙カップの容器や、トップカール部に樹脂製のリングを融着させ、リングと蓋材をシールした紙カップ容器がある。   Also, a paper cup container in which an opening of a paper cup is sealed with a lid or the like is often used as a sealed container. As such a paper cup container, there is a paper cup container in which a film-like lid material is sealed at the top curl part, and a paper cup container in which a resin ring is fused to the top curl part and the ring and the lid material are sealed.

あるいは、トップ部にも底部と同様の形状、すなわち、底部材と同様に、周縁部を折り曲げ、起立させた蓋部材を筒形状の胴部材の内側に挿入し、胴部材を蓋部材の起立部分に重なるように折り曲げて取り付け、蓋部材の水平部分に設けた飲み口の開口部を、蓋材のタブでシールした紙カップ容器がある(特許文献1)。   Alternatively, the top portion has the same shape as that of the bottom portion, that is, similarly to the bottom member, a lid member that is bent and raised is inserted into the inside of the cylindrical body member, and the body member is inserted into the standing portion of the lid member. There is a paper cup container that is bent and attached so as to overlap with the lid, and the opening of the drinking mouth provided in the horizontal portion of the lid member is sealed with a tab of the lid material (Patent Document 1).

また、耐水性と密封性に優れた紙カップ容器としてレトルト紙カップが提案されている。この紙カップ容器は、胴部材が内側に折り返した下部折り返し部と、折り返された胴部材を更に内側に折り返すことにより形成された上部折り返し部とを有し、底部材の周縁部を折り曲げた起立部が、胴部材の下部折り返し部に差し込まれた状態で、胴部材の下端部と上部折り返し部と底部材の起立部とが密着シールされている。   A retort paper cup has been proposed as a paper cup container having excellent water resistance and sealing properties. This paper cup container has a lower folded portion in which the body member is folded inward and an upper folded portion formed by further folding the folded body member inward, and an upright portion in which the peripheral portion of the bottom member is folded However, the lower end portion of the trunk member, the upper folded portion, and the standing portion of the bottom member are tightly sealed while being inserted into the lower folded portion of the trunk member.

更に、胴部材の両端縁には、熱可塑性樹脂層が延設された端縁延設部が設けられ、胴部貼り合わせ部で胴部材の内側に位置する端縁延設部が、胴部材の外側に折り返され、外側に位置する端縁延設部が、胴部材の内側に折り返されて端縁どうしの間に位置している(特許文献2)。   Furthermore, the edge extension part by which the thermoplastic resin layer was extended was provided in the both ends edge of the trunk | drum member, and the edge extension part located inside a trunk | drum member in a trunk | drum bonding part is a trunk | drum member. The edge extending portion which is folded back to the outside and located outside is folded back to the inside of the body member and located between the edges (Patent Document 2).

公知文献を以下に示す。   Known documents are shown below.

特開平5−270524号公報JP-A-5-270524 国際公開第2010/150500号International Publication No. 2010/150500

これらの紙カップ容器は、再封することが出来ず、風呂場、洗面所、台所など水周りで用いるシャンプー、リンス、ボディソープ、あるいは、台所用洗剤、クレンザーなどの容器として用いるのには向いていなかった。   These paper cup containers cannot be resealed and are suitable for use as containers for shampoos, rinses, body soaps, kitchen detergents, cleansers, etc. There wasn't.

本発明は上記した事情に鑑みてなされたもので、水周りで用いられるように、外側からの水濡れに対しても耐水性を有し、再封性を有する紙カップ容器を提供することを課題としている。   The present invention has been made in view of the above circumstances, and provides a paper cup container that has water resistance against water wetting from the outside and has resealability so as to be used around water. It is said.

本発明の請求項1に係る発明は、筒状の胴部材と、該筒状の胴部材の一方の開口部を密封する底部材と、他方の開口部に設けられた再封可能な取り出し口を有する天部材とからなり、
前記胴部材と底部材を形成する胴部材用ブランクと底部材用ブランクは、紙層とこの紙層の両面に設けられた熱可塑性樹脂層からなり、前記天部材は合成樹脂を成型してなり、
前記胴部材は、前記胴部材用ブランクの両端縁どうしが重ね合わせられてシールされた胴部材貼り合わせ部と、前記胴部材用ブランクを内側に折り返すことにより前記胴部材の下端部に形成された下部折り返し部と、前記折り返された胴部材用ブランクの端部を内側に折り返すことにより形成された上部折り返し部とを有し、前記底部材は、前記底部材用ブランクの周縁部を下方に折り曲げた周縁折り曲げ部を有し、
前記底部材の周縁折り曲げ部が、前記胴部材の下端部と前記上部折り返し部との間に差し込まれて密封シールされ、前記天部材は、前記胴部材の端部を覆い融着されていることを特徴とする紙カップ容器である。
The invention according to claim 1 of the present invention includes a cylindrical body member, a bottom member for sealing one opening of the cylindrical body member, and a resealable outlet provided in the other opening. A top member having
The trunk member blank and the bottom member blank forming the trunk member and the bottom member are composed of a paper layer and a thermoplastic resin layer provided on both sides of the paper layer, and the top member is formed by molding a synthetic resin. ,
The trunk member is formed at a lower end portion of the trunk member by folding the trunk member blank inward, and a trunk member bonding portion in which both end edges of the trunk member blank are overlapped and sealed. A lower folded portion, and an upper folded portion formed by folding an end portion of the folded body member blank inward, and the bottom member bends a peripheral portion of the bottom member blank downward. A peripheral bent portion,
The bent portion of the peripheral edge of the bottom member is inserted and sealed between the lower end portion of the barrel member and the upper folded portion, and the top member is fused to cover the end portion of the barrel member. It is a paper cup container characterized by this.

本発明の請求項2に係る発明は、前記胴部材貼り合わせ部の胴部材の両端縁には、前記熱可塑性樹脂層が所定幅に亘って延設された端縁延設部が、設けられていることを特徴とする請求項1に記載の紙カップ容器である。   In the invention according to claim 2 of the present invention, an edge extending portion in which the thermoplastic resin layer extends over a predetermined width is provided at both ends of the body member of the body member bonding portion. The paper cup container according to claim 1, wherein the paper cup container is provided.

本発明の請求項3に係る発明は、前記胴部材貼り合わせ部で前記胴部材の内側に位置する前記端縁延設部が、前記胴部材の外側に折り返されて前記端縁どうしの間に位置することを特徴とする請求項2に記載の紙カップ容器である。   The invention according to claim 3 of the present invention is such that the end edge extending portion located inside the body member at the body member bonding portion is folded back to the outside of the body member and is between the edges. The paper cup container according to claim 2, wherein the paper cup container is located.

本発明の請求項4に係る発明は、前記胴部材貼り合わせ部で前記胴部材の外側に位置する前記端縁延設部が、前記重ね合わせ部の内側に位置する前記胴部材の外面に密着していることを特徴とする請求項2または請求項3に記載の紙カップ容器である。   In the invention according to claim 4 of the present invention, the edge extending portion located outside the body member in the body member bonding portion is in close contact with the outer surface of the body member located inside the overlapping portion. The paper cup container according to claim 2 or 3, wherein the paper cup container is provided.

本発明の請求項5に係る発明は、前記上部折り返し部と下部折り返し部の間の上端が、底部材の平坦部に接していることを特徴とする請求項1から請求項4のいずれか1項に記載の紙カップ容器である。   The invention according to claim 5 of the present invention is characterized in that the upper end between the upper folded portion and the lower folded portion is in contact with the flat portion of the bottom member. It is a paper cup container of description.

本発明の請求項6に係る発明は、前記天部材と前記胴部材の融着が、前記筒状の胴部材を成型金型にセットしてインサートインジェクションで行われていることを特徴とする請求項1から請求項5のいずれか1項に記載の紙カップ容器である。   The invention according to claim 6 of the present invention is characterized in that the fusion of the top member and the body member is performed by insert injection with the cylindrical body member set in a molding die. The paper cup container according to any one of claims 1 to 5.

本発明の請求項7に係る発明は、前記紙層と前記熱可塑性樹脂層の間にバリア層が設けられていることを特徴とする請求項1から請求項6のいずれか1項に記載の紙カップ容器である。   The invention according to claim 7 of the present invention is characterized in that a barrier layer is provided between the paper layer and the thermoplastic resin layer. It is a paper cup container.

本発明の紙カップ容器は、水周りで用いられるように、外側からの水濡れに対しても耐水性を有し、再封性を有している。   The paper cup container of the present invention has water resistance against water wetting from the outside and resealability so as to be used around water.

本発明の紙カップ容器の一例を模式的に縦断面で示した説明図である。It is explanatory drawing which showed typically an example of the paper cup container of this invention with the longitudinal cross-section. 本発明の紙カップ容器の一例に用いるブランクの形状を現す説明図である。(A)胴部材用ブランク、(B)底部材用ブランク。It is explanatory drawing which shows the shape of the blank used for an example of the paper cup container of this invention. (A) trunk member blank, (B) bottom member blank. 本発明の紙カップ容器の一例の胴部材貼り合わせ部を模式的に横断面で示した説明図である。It is explanatory drawing which showed typically the trunk | drum member bonding part of an example of the paper cup container of this invention in the cross section. 本発明の紙カップ容器の一例の胴部材用ブランクを作成する方法を模式的に示した説明図である。It is explanatory drawing which showed typically the method of producing the blank for trunk members of an example of the paper cup container of this invention.

以下、本発明を実施するための形態について説明する。
図1は、本発明の紙カップ容器の一例を模式的に縦断面で示した説明図、図2は、本発明の紙カップ容器の一例に用いるブランクの形状を現す説明図で、(A)胴部材用ブランク、(B)底部材用ブランク、図3は、本発明の紙カップ容器の一例の胴部材貼り合わせ部を模式的に横断面で示した説明図である。
Hereinafter, modes for carrying out the present invention will be described.
FIG. 1 is an explanatory view schematically showing an example of a paper cup container of the present invention in a longitudinal section, and FIG. 2 is an explanatory view showing the shape of a blank used for an example of a paper cup container of the present invention. Blank, (B) blank for bottom member, FIG. 3 is explanatory drawing which showed typically the cross-section of the trunk | drum member bonding part of an example of the paper cup container of this invention.

本例の紙カップ容器100は、図1の縦断面図に示すように、円筒状の胴部材1と、該筒状の胴部材の一方の開口部を密封する底部材2と、他方の開口部に設けられた再封可能な取り出し口を有する天部材3とからなっている。   As shown in the longitudinal sectional view of FIG. 1, the paper cup container 100 of this example includes a cylindrical body member 1, a bottom member 2 that seals one opening of the cylindrical body member, and the other opening. And a top member 3 having a resealable take-out port.

胴部材1は、図2(A)に示すような方形の胴部材用ブランク4の両端縁どうしが重ね合わせられてシールし、胴部材貼り合わせ部5を設けて円筒状としている。そして、胴部材用ブランク4を内側に折り返すことにより胴部材1の下端部に形成された下部折り返し部6と、折り返された胴部材用ブランクの端部を内側に折り返すことにより形成された上部折り返し部7とが設けられている。   The body member 1 is formed in a cylindrical shape by sealing both ends of a rectangular body member blank 4 having a rectangular shape as shown in FIG. And the lower folding | turning part 6 formed in the lower end part of the trunk | drum member 1 by folding the trunk | blade member blank 4 inside, and the upper folding | turning formed by folding the end part of the folded trunk | blade member blank inside. Part 7 is provided.

底部材2は、図2(B)に示すような円形の底部材用ブランク8の周縁部を下方に折り曲げ、周縁折り曲げ部9を設けている。そして、底部材の周縁折り曲げ部9が、胴部材1の下端部と上部折り返し部7との間に差し込まれて密封シールされている。このような構成になっているので、胴部材の下方の端面と底部材の端面が、密封シールによって囲まれ、この部分における外側からの水濡れに対する耐水性が確保される
また、上部折り返し部7と下部折り返し部6の間の上端が、底部材2の平坦部の下面に接している。これにより、紙カップ容器100の下部が補強され、液体のような重量のある内容物でも座屈することがない。
The bottom member 2 is provided with a peripheral bent portion 9 by bending a peripheral portion of a circular bottom member blank 8 as shown in FIG. And the peripheral bending part 9 of the bottom member is inserted between the lower end part of the trunk | drum member 1, and the upper folding | turning part 7, and is sealed and sealed. Since it has such a configuration, the lower end surface of the trunk member and the end surface of the bottom member are surrounded by a hermetic seal, and water resistance against water wetting from the outside in this portion is ensured. The upper end between the lower folded portion 6 is in contact with the lower surface of the flat portion of the bottom member 2. Thereby, the lower part of the paper cup container 100 is reinforced, and even a heavy content such as liquid does not buckle.

天部材3は、天部材本体10とキャップ11とからなり、天部材本体10は肩部12と口頸部13からなり、口頸部13は先端が開口され、内容物の取り出し口14が設けられている。口頸部13の外周には雄螺子15が設けられ、キャップ11の内周に設けられた雌螺子16と螺子嵌合されている。天部材3の肩部1の下端は、胴部材1の上端を覆い融着されている。   The top member 3 includes a top member main body 10 and a cap 11. The top member main body 10 includes a shoulder portion 12 and a mouth-and-neck portion 13. The mouth-and-neck portion 13 is open at the tip and is provided with a content outlet 14. It has been. A male screw 15 is provided on the outer periphery of the mouth-and-neck portion 13, and is screwed into a female screw 16 provided on the inner periphery of the cap 11. The lower end of the shoulder portion 1 of the top member 3 covers and fuses the upper end of the body member 1.

胴部材1を形成する胴部材用ブランク4は、紙層20と、この紙層20の外面側に設けられた外側熱可塑性樹脂層21と、内面側に設けられた内側熱可塑性樹脂層22とからなっている。   The body member blank 4 that forms the body member 1 includes a paper layer 20, an outer thermoplastic resin layer 21 provided on the outer surface side of the paper layer 20, and an inner thermoplastic resin layer 22 provided on the inner surface side. It is made up of.

紙層20は、カップ原紙などの板紙を用いることが出来る。外側熱可塑性樹脂層21と、内側熱可塑性樹脂層22には、ポリエチレンやポリプロピレン、あるいは、エチレンービニルアルコール共重合体などの熱可塑性樹脂を用いることができる。   The paper layer 20 can be a paperboard such as a cup base paper. For the outer thermoplastic resin layer 21 and the inner thermoplastic resin layer 22, a thermoplastic resin such as polyethylene, polypropylene, or ethylene-vinyl alcohol copolymer can be used.

紙層20と外側熱可塑性樹脂層21の間、あるいは、紙層20と内側熱可塑性樹脂層22の間に、バリア性層を設けても良い。バリア性層としては、アルミニウム箔などの金属箔を設けてもよく、また、樹脂フィルムに、酸化アルミニウムや酸化ケイ素などを蒸着した蒸着フィルムを設けても良い。また、バリア性のあるナイロンや、ポリエチレンテレフタレートなどのポリエステル、エチレンービニルアルコール共重合体などの延伸フィルムあるいは未延伸フィルムを設けても良い。また、必要に応じて、紙の外側のいずれかの層に印刷層を設けることが出来る。   A barrier layer may be provided between the paper layer 20 and the outer thermoplastic resin layer 21 or between the paper layer 20 and the inner thermoplastic resin layer 22. As the barrier layer, a metal foil such as an aluminum foil may be provided, or a vapor deposition film obtained by vapor-depositing aluminum oxide or silicon oxide may be provided on the resin film. Moreover, you may provide stretched films or unstretched films, such as nylon with barrier property, polyesters, such as a polyethylene terephthalate, an ethylene-vinyl alcohol copolymer. Moreover, a printing layer can be provided in any layer outside the paper as required.

そして、図2(A)のように、胴部材用ブランク4の左右両端縁に、紙層20より外側熱可塑性樹脂層21と内側熱可塑性樹脂層22を所定幅に亘って延設され融着されている端縁延設部23を設けておき、胴部材2を筒状にしたときに、胴部材貼り合わせ部5の胴部材2の両端縁に端縁延設部23が来るようにする。   Then, as shown in FIG. 2A, the outer thermoplastic resin layer 21 and the inner thermoplastic resin layer 22 are extended over the predetermined width from the paper layer 20 to the left and right ends of the body member blank 4 and fused. The edge extending portion 23 is provided so that when the body member 2 is formed into a cylindrical shape, the edge extending portion 23 comes to both ends of the body member 2 of the body member bonding portion 5. .

胴部材貼り合わせ部5で胴部材2の内側に位置する端縁延設部23aが、胴部材の外側に折り返されて端縁どうしの間に位置し、胴部材貼り合わせ部5の中に入るようになっている。   An edge extending portion 23 a located inside the body member 2 at the body member bonding portion 5 is folded back to the outside of the body member and positioned between the edges, and enters the body member bonding portion 5. It is like that.

また、胴部材貼り合わせ部5で胴部材1の外側に位置する端縁延設部23bが、胴部材重ね合わせ部5の内側に位置する胴部材2に密着している。このようになっているので、胴部材貼り合わせ部5において、紙カップ容器100の内側で端部が露出することなく、紙層20が濡れることがなく耐水性が確保され、また、外側も端部が露出することなく、外側からの水濡れに対する耐水性が確保される。   Further, the edge extending portion 23 b located outside the trunk member 1 in the trunk member bonding portion 5 is in close contact with the trunk member 2 located inside the trunk member overlapping portion 5. Thus, in the body member bonding portion 5, the end portion is not exposed inside the paper cup container 100, the paper layer 20 is not wetted, and water resistance is ensured. Without being exposed, water resistance against water wetting from the outside is ensured.

以下、本例の紙カップ容器100の製造方法について説明する。   Hereinafter, the manufacturing method of the paper cup container 100 of this example is demonstrated.

胴部材用ブランク4は、図4のように、紙層20となるカップ原紙などの長尺の紙20aに胴部材用ブランク形状24を割り付け、胴部材用ブランク4の紙層20の端部より端縁延設部23を設ける部分を含めて外側に広く貫通孔25を打ち抜いて設ける。   As shown in FIG. 4, the trunk member blank 4 is formed by allocating the trunk member blank shape 24 to a long paper 20 a such as a cup base paper to be the paper layer 20, and from the end of the paper layer 20 of the trunk member blank 4. A through-hole 25 is widely punched outside including a portion where the edge extending portion 23 is provided.

そして、外側熱可塑性樹脂層21と内側熱可塑性樹脂層22を押出しラミネート法により、順次設ける。押出しラミネート法で設けることによって、外側熱可塑性樹脂層21と内側熱可塑性樹脂層22は、貫通孔25の部分では融着される。   And the outer side thermoplastic resin layer 21 and the inner side thermoplastic resin layer 22 are sequentially provided by the extrusion laminating method. By providing by the extrusion laminating method, the outer thermoplastic resin layer 21 and the inner thermoplastic resin layer 22 are fused at the portion of the through hole 25.

バリア層を設ける場合は、バリア層と外側熱可塑性樹脂層21、あるいは、内側熱可塑性樹脂層22と積層しておき、バリア層面を紙層20とサンドイッチラミネーション法により積層する。   When providing a barrier layer, the barrier layer and the outer thermoplastic resin layer 21 or the inner thermoplastic resin layer 22 are laminated, and the barrier layer surface is laminated with the paper layer 20 by a sandwich lamination method.

紙層20に外側熱可塑性樹脂層21と内側熱可塑性樹脂層22を設けた積層体を胴部材用ブランク形状24に打ち抜いて、図2(A)のような形状の胴部材用ブランク4を作成する。   A laminated body in which a paper layer 20 is provided with an outer thermoplastic resin layer 21 and an inner thermoplastic resin layer 22 is punched into a trunk member blank shape 24 to create a trunk member blank 4 having a shape as shown in FIG. To do.

また、底部材用ブランク8も紙層20に外側熱可塑性樹脂層21と内側熱可塑性樹脂層22を押出しラミネート法により設け、打ち抜いて、図2(B)のような形状の底部材用ブランク8を作成する。底部材用ブランク8は、周縁部を下方に折り曲げ、周縁折り曲げ部9を設けた底部材2に成形しておく。   Further, the bottom member blank 8 is also formed by forming the outer thermoplastic resin layer 21 and the inner thermoplastic resin layer 22 on the paper layer 20 by extrusion laminating, punching out, and forming the bottom member blank 8 as shown in FIG. Create The blank 8 for the bottom member is formed into the bottom member 2 provided with the peripheral bent portion 9 by bending the peripheral portion downward.

胴部材用ブランク4の左右両端縁のうち一方の胴部材2の内側に位置する端縁延設部23aを、胴部材1の外側に折り返し、他方の端縁の外側に重ね、そのとき、他方の端縁の端縁延設部23bはそのまま伸ばした状態で、一方の胴部材2の外側にして、融着させて胴部材貼り合わせ部5を設けて筒状の胴部材1とする。   Of the left and right end edges of the body member blank 4, the edge extending portion 23 a located inside the one body member 2 is folded back to the outside of the body member 1 and overlapped on the outside of the other edge, The end extending portion 23b of the end edge of the cylinder is stretched as it is, outside the one body member 2, and fused to provide the body member bonding portion 5, thereby forming the cylindrical body member 1.

この筒状の胴部材1をインサートインジェクションの成型金型にセットして、熱可塑性の合成樹脂を成型金型に射出して天部材本体10を成型すると同時に、胴部材1の上端の端面を覆うようにして、胴部材1に融着させる。別途、インジェクションで製造しておいたキャップ11を雄螺子15と雌螺子16で螺合させて取り付け、天部材3を製造する。   The cylindrical barrel member 1 is set in an insert injection molding die, and a thermoplastic synthetic resin is injected into the molding die to mold the top member main body 10, and at the same time, the upper end face of the barrel member 1 is covered. In this manner, the body member 1 is fused. Separately, the cap 11 that has been manufactured by injection is screwed and attached with the male screw 15 and the female screw 16 to manufacture the top member 3.

この天部材3が融着された胴部材1を、天部材3側を下にして、中に内容物を充填する
。そして、下記のように、底部材2を胴部材1に取り付けて、充填済みの紙カップ容器100を製造する。
The body member 1 to which the top member 3 is fused is filled with the contents with the top member 3 side down. And the bottom member 2 is attached to the trunk | drum member 1 as follows, and the filled paper cup container 100 is manufactured.

底部材2を胴部材1に取り付けるには、まず、筒状の胴部材1を内側に折り返して下部折り返し部6を下端部に形成する。更に、折り返された胴部材1の端部を内側に折り返すことにより上部折り返し部7を形成する。   In order to attach the bottom member 2 to the body member 1, first, the tubular body member 1 is folded inward to form the lower folded portion 6 at the lower end. Further, the upper folded portion 7 is formed by folding the end portion of the folded body member 1 inward.

この上部折り返し部7と外側の胴部材1の下端部の間に、周縁折り曲げ部9の先端側から差し込み、胴部材1の下端部、周縁折り曲げ部9、上部折り返し部7、下部折り返し部6を融着させて、紙カップの脚部を形成する。このとき、上部折り返し部7と下部折り返し部6の間の上端が、底部材2の平坦部の下面に接するようにする。   Between the upper folded portion 7 and the lower end portion of the outer body member 1, the lower end portion of the body member 1, the peripheral folded portion 9, the upper folded portion 7, and the lower folded portion 6 are inserted. The paper cup legs are formed by fusing. At this time, the upper end between the upper folded portion 7 and the lower folded portion 6 is brought into contact with the lower surface of the flat portion of the bottom member 2.

上部折り返し部7と下部折り返し部6の間の上端が、底部材2の平坦部の下面に接していると、紙カップの脚部の強度が向上して、重量のある内容物でも座屈することがない。またその分、紙の坪量を少なくすることも出来る。   When the upper end between the upper folded portion 7 and the lower folded portion 6 is in contact with the lower surface of the flat portion of the bottom member 2, the strength of the leg portion of the paper cup is improved and even a heavy content can buckle. Absent. In addition, the basis weight of the paper can be reduced accordingly.

本例の紙カップ容器100の別の製造方法について説明する。   Another method for manufacturing the paper cup container 100 of this example will be described.

筒状の胴部材1を製造するまでは、同じであるが、インサートインジェクションでは、熱可塑性の合成樹脂のリングを胴部材1の上端の端面を覆うようにして、胴部材1に融着させ、取り付ける。   It is the same until the cylindrical body member 1 is manufactured, but in the insert injection, a ring of thermoplastic synthetic resin is fused to the body member 1 so as to cover the end surface of the upper end of the body member 1, Install.

この合成樹脂のリングが融着された胴部材1に底部材2を取り付ける。取り付け方法は、前述の方法と同様である。このように、底部材2を取り付けた胴部材1の中に内容物を充填する。   The bottom member 2 is attached to the body member 1 to which the synthetic resin ring is fused. The attachment method is the same as that described above. In this way, the contents are filled into the body member 1 to which the bottom member 2 is attached.

別途成型しておいた、合成樹脂のリング以外の天部材本体10部分を、超音波シールなどによって、合成樹脂のリングに融着して天部材本体10を完成させ、別途成型したキャップ11を雄螺子15と雌螺子16で螺合させて取り付け、充填済みの紙カップ容器100を製造する。   The top member main body 10 other than the synthetic resin ring, which has been separately molded, is fused to the synthetic resin ring by ultrasonic sealing or the like to complete the top member main body 10, and the separately molded cap 11 is male. The filled paper cup container 100 is manufactured by screwing the screw 15 and the female screw 16 together.

本例において、胴部材の形状は円筒状としたが、逆円錐台形や円錐台形の筒状としても良い。また、横断面が角を取った四角形など多角形とした角筒状や、逆多角錐台形、多角錐台形の筒状としても良い。   In this example, the body member has a cylindrical shape, but it may have an inverted truncated cone shape or a truncated cone shape. Moreover, it is good also as a square cylinder shape made into polygons, such as a quadrangle with a square cross section, a reverse polygon frustum shape, and a cylinder shape of a polygon frustum shape.

また、天部材をスクリューキャップ付としたが、ヒンジキャップ付としても良いし、また、ディスペンサ(液体定量吐出装置)を備えた天部材としても良い。   Moreover, although the top member is provided with a screw cap, it may be provided with a hinge cap, or may be a top member provided with a dispenser (a liquid dispensing device).

100・・・紙カップ容器
1・・・胴部材
2・・・底部材
3・・・天部材
4・・・胴部材用ブランク
5・・・胴部材貼り合わせ部
6・・・下部折り返し部
7・・・上部折り返し部
8・・・底部材用ブランク
9・・・周縁折り曲げ部
10・・・天部材本体
11・・・キャップ
12・・・肩部
13・・・口頸部
14・・・取り出し口
15・・・雄螺子
16・・・雌螺子
20・・・紙層
20a・・・長尺の紙
21・・・外側熱可塑性樹脂層
22・・・内側熱可塑性樹脂層
23、23a、23b・・・端縁延設部
24・・・胴部材用ブランク形状
25・・・貫通孔
DESCRIPTION OF SYMBOLS 100 ... Paper cup container 1 ... Body member 2 ... Bottom member 3 ... Top member 4 ... Body member blank 5 ... Body member bonding part 6 ... Lower folding part 7- ··· Upper folded portion 8 ··· Blank 9 for bottom member · · · Folded portion 10 · · · Top member main body 11 ··· Cap 12 · · · Shoulder portion 13 · · · neck and neck portion 14 · · · Port 15 ... male screw 16 ... female screw 20 ... paper layer 20a ... long paper 21 ... outer thermoplastic resin layer 22 ... inner thermoplastic resin layers 23, 23a, 23b ... End edge extension 24 ... Blank shape for body member 25 ... Through hole

Claims (7)

筒状の胴部材と、該筒状の胴部材の一方の開口部を密封する底部材と、他方の開口部に設けられた再封可能な取り出し口を有する天部材とからなり、
前記胴部材と底部材を形成する胴部材用ブランクと底部材用ブランクは、紙層とこの紙層の両面に設けられた熱可塑性樹脂層からなり、前記天部材は合成樹脂を成型してなり、
前記胴部材は、前記胴部材用ブランクの両端縁どうしが重ね合わせられてシールされた胴部材貼り合わせ部と、前記胴部材用ブランクを内側に折り返すことにより前記胴部材の下端部に形成された下部折り返し部と、前記折り返された胴部材用ブランクの端部を内側に折り返すことにより形成された上部折り返し部とを有し、前記底部材は、前記底部材用ブランクの周縁部を下方に折り曲げた周縁折り曲げ部を有し、
前記底部材の周縁折り曲げ部が、前記胴部材の下端部と前記上部折り返し部との間に差し込まれて密封シールされ、前記天部材は、前記胴部材の端部を覆い融着されていることを特徴とする紙カップ容器。
It consists of a cylindrical body member, a bottom member that seals one opening of the cylindrical body member, and a top member that has a resealable outlet provided in the other opening,
The trunk member blank and the bottom member blank forming the trunk member and the bottom member are composed of a paper layer and a thermoplastic resin layer provided on both sides of the paper layer, and the top member is formed by molding a synthetic resin. ,
The trunk member is formed at a lower end portion of the trunk member by folding the trunk member blank inward, and a trunk member bonding portion in which both end edges of the trunk member blank are overlapped and sealed. A lower folded portion, and an upper folded portion formed by folding an end portion of the folded body member blank inward, and the bottom member bends a peripheral portion of the bottom member blank downward. A peripheral bent portion,
The bent portion of the peripheral edge of the bottom member is inserted and sealed between the lower end portion of the barrel member and the upper folded portion, and the top member is fused to cover the end portion of the barrel member. Paper cup container characterized by.
前記胴部材貼り合わせ部の胴部材の両端縁には、前記熱可塑性樹脂層が所定幅に亘って延設された端縁延設部が、設けられていることを特徴とする請求項1に記載の紙カップ容器。   The edge extension part by which the said thermoplastic resin layer was extended over predetermined width was provided in the both-ends edge of the trunk | drum member of the said trunk | drum member bonding part, The Claim 1 characterized by the above-mentioned. The paper cup container described. 前記胴部材貼り合わせ部で前記胴部材の内側に位置する前記端縁延設部が、前記胴部材の外側に折り返されて前記端縁どうしの間に位置することを特徴とする請求項2に記載の紙カップ容器。   3. The edge extending portion located on the inside of the body member at the body member bonding portion is folded back to the outside of the body member and located between the edges. The paper cup container described. 前記胴部材貼り合わせ部で前記胴部材の外側に位置する前記端縁延設部が、前記重ね合わせ部の内側に位置する前記胴部材の外面に密着していることを特徴とする請求項2または請求項3に記載の紙カップ容器。   3. The edge extending portion located outside the body member in the body member bonding portion is in close contact with an outer surface of the body member located inside the overlapping portion. Or the paper cup container of Claim 3. 前記上部折り返し部と下部折り返し部の間の上端が、底部材の平坦部に接していることを特徴とする請求項1から請求項4のいずれか1項に記載の紙カップ容器。   5. The paper cup container according to claim 1, wherein an upper end between the upper folded portion and the lower folded portion is in contact with a flat portion of the bottom member. 前記天部材と前記胴部材の融着が、前記筒状の胴部材を成型金型にセットしてインサートインジェクションで行われていることを特徴とする請求項1から請求項5のいずれか1項に記載の紙カップ容器。   The fusion of the top member and the body member is performed by insert injection with the cylindrical body member set in a molding die. A paper cup container according to 1. 前記紙層と前記熱可塑性樹脂層の間にバリア層が設けられていることを特徴とする請求項1から請求項6のいずれか1項に記載の紙カップ容器。   The paper cup container according to any one of claims 1 to 6, wherein a barrier layer is provided between the paper layer and the thermoplastic resin layer.
JP2013041564A 2013-03-04 2013-03-04 Paper cup container Pending JP2014169103A (en)

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