JPH0885541A - Paper container for liquid with easy-to-open drink port - Google Patents
Paper container for liquid with easy-to-open drink portInfo
- Publication number
- JPH0885541A JPH0885541A JP6223385A JP22338594A JPH0885541A JP H0885541 A JPH0885541 A JP H0885541A JP 6223385 A JP6223385 A JP 6223385A JP 22338594 A JP22338594 A JP 22338594A JP H0885541 A JPH0885541 A JP H0885541A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- heat
- paper container
- liquid
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/70—Break-in flaps, or members adapted to be torn-off, to provide pouring openings
- B65D5/708—Separate tearable flexible elements covering a discharge opening of a container, e.g. adhesive tape
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cartons (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、封止シートで密封した
飲み口部を有する液体用紙容器に関するものであり、詳
しくは、従来の飲み口部の開封性を改善した易開封飲み
口部付液体用紙容器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid paper container having a mouthpiece sealed with a sealing sheet, and more particularly, to an easily opened mouthpiece having improved opening performance of a conventional mouthpiece. The present invention relates to a liquid paper container.
【０００２】[0002]
【従来の技術】最近、果汁飲料、コーヒー、液体スー
プ、乳酸飲料などの液体食品の分野では、使用時の使い
易さと、使用後の廃棄処理のし易さから、例えば、図３
（ａ）及び（ｂ）に示すような、天部（１２０）に開封
用つまみ（３１）をもつ封止シート（３０）で密封した
飲み口部（１４０）を有する円筒状の液体用紙容器（１
００）や、図４に示すような、天部（１２０）に開封用
つまみ（３１）をもつ封止シート（３０）で密封した飲
み口部（１４０）を有するレンガ状の液体用紙容器（１
００）が、広い用途範囲に使用されている。この液体用
紙容器に使用する積層材料は、合成樹脂層、紙層、金属
箔層、金属蒸着薄膜層などからなる積層基材の最外層及
び最内層に、熱融着性と防水性をもつ合成樹脂層を設け
たものであり、飲み口部の構造は、例えば、図２（ａ）
に示すように、積層材料（１０）の飲み口部（１４０）
の外周外側縁部の最外層（１２）面に、開封用つまみ
（３１）をもつ封止シート（３０）を熱融着し、最内層
（１３）面とに、封止シート（３０）より強度の弱い封
止シート（４０）を熱融着して、飲み口部を内外から封
止し、さらに、これら封止シート（３０，４０）の当接
面を熱融着したものや、図２（ｂ）に示すように、積層
材料（１０）の最外層（１２）の合成樹脂層と最内層
（１３）の合成樹脂層とで、飲み口部（１４０）の積層
材料（１０）の端面（１４）を覆い、これら合成樹脂層
（１２，１３）の当接面を熱融着し、この熱融着部に開
口部（１２１）を形成し、さらに、積層材料（１０）の
飲み口部（１４０）の外周外側縁部の最外層（１２）面
には、開封用つまみ（３１）をもつ封止シート（３０）
を熱融着して、飲み口部（１４０）を密封したものなど
であった。2. Description of the Related Art Recently, in the field of liquid foods such as fruit juices, coffee, liquid soups and lactic acid drinks, for example, as shown in FIG.
As shown in (a) and (b), a cylindrical liquid paper container having a drinking mouth (140) sealed with a sealing sheet (30) having an opening knob (31) on a top (120) ( 1
00) or a brick-shaped liquid paper container (1) having a drinking mouth (140) sealed with a sealing sheet (30) having an opening knob (31) on the top (120) as shown in FIG.
00) is used in a wide range of applications. The laminated material used for this liquid paper container is a synthetic material having thermal fusion bonding and waterproof properties on the outermost and innermost layers of a laminated base material including a synthetic resin layer, a paper layer, a metal foil layer, and a metal vapor deposition thin film layer. The resin layer is provided, and the structure of the mouthpiece is, for example, as shown in FIG.
As shown in Fig. 1, the mouthpiece (140) of the laminated material (10)
A sealing sheet (30) having an opening knob (31) is heat-fused to the outermost layer (12) surface of the outer peripheral outer edge of the, and the sealing sheet (30) is attached to the innermost layer (13) surface. A sealing sheet (40) having low strength is heat-sealed to seal the mouth part from inside and outside, and further, the contact surfaces of these sealing sheets (30, 40) are heat-sealed, and As shown in FIG. 2 (b), the outermost layer (12) of the laminated material (10) and the innermost layer (13) of the synthetic resin layer are made of the laminated material (10) of the mouthpiece (140). The end surfaces (14) are covered, the contact surfaces of these synthetic resin layers (12, 13) are heat-sealed, an opening (121) is formed in this heat-sealed portion, and the laminated material (10) is drunk. A sealing sheet (30) having an opening knob (31) on the outermost layer (12) surface of the outer peripheral edge of the mouth (140).
Was heat-sealed to seal the mouthpiece (140).
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前述の
積層材料の飲み口部の外周外側縁部の内外面に、封止シ
ートを熱融着して密封したものは、使用時に、外側の封
止シートの開封用つまみをもって、飲み口部を開口しよ
うとしても、内側の封止シートの破断にかなりの力を必
要とすることがあった。また、積層材料の飲み口部の外
周外側縁部の外面に、封止シートを熱融着して密封した
ものは、使用時に、開封用つまみをもって封止シートを
剥離して、飲み口部を開口したとき、積層材料の最外層
の合成樹脂層が、むしり取られ、容器の外観が著しく損
なわれることがあった。However, when the sealing sheet is heat-sealed and sealed to the inner and outer surfaces of the outer peripheral edge of the mouth of the laminated material described above, the outer seal is not formed during use. Even if the opening knob of the sheet is used to open the drinking portion, a considerable force may be required to break the inner sealing sheet. In addition, the sealing material is heat-sealed and sealed to the outer surface of the outer peripheral edge of the drinking material portion of the laminated material, and when used, the sealing sheet is peeled off with the opening knob to open the drinking material portion. When opened, the outermost synthetic resin layer of the laminated material was sometimes peeled off, which markedly impaired the appearance of the container.
【０００４】本発明は、上述の従来の飲み口部付液体用
紙容器の開封時の問題を解決したものであり、使用時
に、容器の外観を損なうことなく容易に開封できる易開
封飲み口部付液体用紙容器を提供するものである。The present invention solves the above-mentioned problem of opening a conventional liquid paper container with a mouthpiece, and has an easy-opening mouthpiece that can be easily opened during use without damaging the appearance of the container. A liquid paper container is provided.
【０００５】[0005]
【課題を解決するための手段】本発明は、積層材料から
なる飲み口部付液体用紙容器において、図１に示すよう
に、積層材料（１０）の飲み口部（１４０）の外周外側
縁部の最外層（１２）面に、リング状のヒートシールラ
ッカー層（２０）を形成し、このヒートシールラッカー
層（２０）上に、開封用つまみ（３１）をもつ封止シー
ト（３０）を熱融着して、飲み口部（１４０）を封止し
たことを特徴とする易開封飲み口部付液体用紙容器であ
る。DISCLOSURE OF THE INVENTION The present invention relates to a liquid paper container with a mouthpiece made of a laminated material, as shown in FIG. 1, and has an outer peripheral edge portion of the outer periphery of the mouthpiece (140) of the laminated material (10). A ring-shaped heat seal lacquer layer (20) is formed on the outermost layer (12) surface of the above, and a sealing sheet (30) having an opening knob (31) is heated on the heat seal lacquer layer (20). A liquid paper container with an easily openable drinking mouth characterized by being fused and sealing the drinking mouth (140).
【０００６】上述の積層材料（１０）は、合成樹脂層、
紙層、金属箔層、金属蒸着薄膜層などからなる積層基材
（１１）の最外層（１２）及び最内層（１３）に、熱融
着性と防水性をもつ合成樹脂層を設けたものであり、こ
の合成樹脂層には、一般的には、低密度ポリエチレンや
線状低密度ポリエチレンなどのポリエチレンを使用する
が、必要に応じては、ポリエステル系コポリマーなどの
ポリエステルを使用してもよい。The above-mentioned laminated material (10) is a synthetic resin layer,
A laminated base material (11) comprising a paper layer, a metal foil layer, a metal vapor deposition thin film layer, etc., provided with a synthetic resin layer having heat-sealing property and waterproof property on the outermost layer (12) and innermost layer (13). For this synthetic resin layer, polyethylene such as low-density polyethylene or linear low-density polyethylene is generally used, but polyester such as polyester-based copolymer may be used if necessary. .
【０００７】また、ヒートシールラッカーは、積層材料
の最外層上に、グラビア印刷法などで、パターン印刷が
可能なものであり、その印刷塗膜は、熱融着性を有する
ものでる。また、このヒートシールラッカー層は、容器
の目的にあわせた熱融着性や層間剥離性を有するように
設けるものである。The heat-seal lacquer is capable of pattern printing on the outermost layer of the laminated material by a gravure printing method or the like, and the printed coating film has a heat fusion property. Further, this heat-seal lacquer layer is provided so as to have a heat-sealing property and an interlayer peeling property according to the purpose of the container.
【０００８】また、封止シートは、単層でも積層でもよ
いが、ヒートシールラッカー層との当接層は、ヒートシ
ールラッカー層に熱融着性を有し、防水性をもつ合成樹
脂層である。The encapsulating sheet may be a single layer or a laminated layer, but the contact layer with the heat-seal lacquer layer is a synthetic resin layer having a heat-sealing property to the heat-seal lacquer layer and a waterproof property. is there.
【０００９】[0009]
【作用】本発明の易開封飲み口部付液体用紙容器は、飲
み口部に接着している開封用つまみをもつ封止シート
を、開封用つまみをもって上方に引っ張ると、封止シー
トと積層材料の最外層との間に、必要な熱融着性又は層
間剥離強度をもつヒートシールラッカー層が設けられて
いるため、封止シートとヒートシールラッカー層の間、
ヒートシールラッカー層間、ヒートシールラッカー層と
積層材料の最外層間のいずれかで剥離が生じ、封止シー
トが容易に取り去られて、飲み口部が開封する。The liquid paper container with the easy opening / drinking part of the present invention has a sealing sheet and a laminated material when the sealing sheet having the opening tab attached to the drinking port is pulled upward by the opening tab. Between the outermost layer of, since a heat seal lacquer layer having the necessary heat fusion property or delamination strength is provided, between the sealing sheet and the heat seal lacquer layer,
Peeling occurs between the heat-seal lacquer layer and between the heat-seal lacquer layer and the outermost layer of the laminated material, and the sealing sheet is easily removed to open the drinking mouth.
【００１０】[0010]
【実施例】まず、〔容器外側〕板紙層（２２０ g/m2 ）
／ポリエチレン層（２０μｍ厚）／ポリエチレン層（１
５μｍ厚）／二軸延伸ポリエチレンテレフタレートフィ
ルム層（１２μｍ厚）／酸化ケイ素蒸着薄膜層（４００
Å厚）〔容器内側〕構成の積層基材をラミネーション加
工法で作製し、図１に示すように、この積層基材（１
１）の飲み口部（１４０）位置を打抜加工したのち、積
層基材（１１）の両側面に、最外層（１２）のポリエチ
レン層（６０μｍ厚）と最内層（１３）のポリエチレン
層（６０μｍ厚）を積層し、これらポリエチレン層の当
接面を熱融着して、飲み口部の積層材料の端面を覆い、
この熱融着部に開口部（１２１）を形成し、積層材料
（１０）の飲み口部（１４０）の外周外側縁部の最外層
面に、リング状のヒートシールラッカー層（２０）をグ
ラビア印刷法でニトロセルロース系樹脂のヒートシール
ラッカーで形成し、このヒートシールラッカー層（２
０）上に、開封用つまみ（３１）をもつ〔上側〕ポリエ
チレン層（４０μｍ厚）／二軸延伸ポリエチレンテレフ
タレートフィルム層（１２μｍ厚）／ポリエチレン層
（４０μｍ厚）構成の封止シート（３０）を熱融着し
て、飲み口部（１４０）を封止し、打抜加工により天部
を作製した。これとは別個に、〔容器外側〕ポリエチレ
ン層（２０μｍ厚）／板紙層（２８０ g/m2 ）／ポリエ
チレン層（１５μｍ厚）／二軸延伸ポリエチレンテレフ
タレートフィルム層（１２μｍ厚）／酸化ケイ素蒸着薄
膜層（４００Å厚）／ポリエチレン層（６０μｍ厚）
〔容器内側〕構成の積層材料の胴部を作製し、さらに、
〔容器外側〕ポリエチレン層（２０μｍ厚）／板紙層
（２４０ g/m2 ）／ポリエチレン層（１５μｍ厚）／二
軸延伸ポリエチレンテレフタレートフィルム層（１２μ
ｍ厚）／酸化ケイ素蒸着薄膜層（４００Å厚）／ポリエ
チレン層（６０μｍ厚）〔容器内側〕構成の積層材料の
底部を作製した。Example First, [outside the container] paperboard layer (220 g / m 2 ).
/ Polyethylene layer (20 μm thick) / polyethylene layer (1
5 μm thickness) / biaxially stretched polyethylene terephthalate film layer (12 μm thickness) / silicon oxide deposited thin film layer (400
Å Thickness) [Inside the container] A laminated base material having a constitution was produced by a lamination processing method, and as shown in FIG.
After punching the position of the drinking mouth (140) of 1), the polyethylene layer (60 μm thick) of the outermost layer (12) and the polyethylene layer (13) of the innermost layer (13) are formed on both sides of the laminated base material (11). 60 μm thick), and heat-bond the contact surfaces of these polyethylene layers to cover the end surface of the laminated material of the drinking spout,
An opening (121) is formed in this heat-sealing portion, and a ring-shaped heat-sealing lacquer layer (20) is gravure-coated on the outermost layer surface of the outer peripheral edge of the mouthpiece (140) of the laminated material (10). The heat-sealing lacquer layer (2
0) on top of which a [upper] polyethylene layer (40 μm thick) / biaxially stretched polyethylene terephthalate film layer (12 μm thick) / polyethylene layer (40 μm thick) having an opening knob (31) is formed. It was heat-sealed to seal the drinking spout (140) and punched to form a top. Separately from this, [outside the container] polyethylene layer (20 μm thickness) / paperboard layer (280 g / m 2 ) / polyethylene layer (15 μm thickness) / biaxially stretched polyethylene terephthalate film layer (12 μm thickness) / silicon oxide deposited thin film Layer (400Å thickness) / polyethylene layer (60 μm thickness)
[Body inside] Produce a body of laminated material of the configuration, further,
[Outside of container] polyethylene layer (20 μm thickness) / paperboard layer (240 g / m 2 ) / polyethylene layer (15 μm thickness) / biaxially stretched polyethylene terephthalate film layer (12 μm)
(m thickness) / silicon oxide vapor-deposited thin film layer (400 Å thickness) / polyethylene layer (60 μm thickness) [inside the container].
【００１１】次に、図３に示すように、上述の胴部（１
１０）の下端に、底部（１３０）を熱融着し、水を充填
し、胴部（１１０）の上端に、飲み口部（１４０）を有
する天部（１２０）を熱融着して容器を密封し、本実施
例の易開封飲み口部付液体用紙容器（１００）を作製し
た。Next, as shown in FIG. 3, the body (1
The bottom part (130) is heat-sealed to the lower end of 10) and is filled with water, and the top part (120) having the mouth part (140) is heat-sealed to the upper end of the body part (110). Then, the easily opened liquid paper container with a mouth part (100) was produced.
【００１２】上述の水を充填した本実施例の液体用紙容
器を、１０ケース２００本を、通常の保管と流通過程を
経てのち、飲み口部の液漏れ状態を調べたが、液漏れを
発生したものはなかった。さらに、天部の飲み口部に貼
られた封止シートを、開封つまみをもって開封してみた
が、容器の外観性を損なうことなく容易に開封すること
ができた。The liquid paper container of this embodiment filled with water as described above was subjected to normal storage and distribution process of 200 cases of 10 cases, and then the liquid leak condition of the drinking mouth was examined. There was nothing I did. Furthermore, when the opening sheet was used to open the sealing sheet attached to the mouth portion of the top, the opening could be easily performed without impairing the appearance of the container.
【００１３】[0013]
【発明の効果】本発明の易開封飲み口部付液体用紙容器
は、封止シートと積層材料の最外層との間に、必要な熱
融着性又は層間剥離強度をもつヒートシールラッカー層
が設けられているため、飲み口部に接着している封止シ
ートを、開封用つまみをもって容易に剥がすとができ、
容器の外観性を損なうことなく、飲み口部を容易に開封
することができる。EFFECTS OF THE INVENTION The liquid paper container with an easy-open mouthpiece according to the present invention has a heat-seal lacquer layer having a necessary heat-sealing property or delamination strength between the sealing sheet and the outermost layer of the laminated material. Since it is provided, it is possible to easily peel off the sealing sheet that adheres to the spout with the opening knob,
The drinking spout can be easily opened without impairing the appearance of the container.
【図１】本発明の一例の実施例の液体用紙容器の飲み口
部付近の断面図である。FIG. 1 is a cross-sectional view of a liquid paper container according to an embodiment of the present invention in the vicinity of a drinking opening.
【図２】（ａ）は、従来の一例の液体用紙容器の飲み口
部付近の断面図であり、（ｂ）は、他の従来の一例の液
体用紙容器の飲み口部付近の断面図である。FIG. 2A is a cross-sectional view of a liquid paper container of a conventional example near a drinking mouth portion, and FIG. 2B is a cross-sectional view of a liquid paper container of another conventional example near a drinking mouth portion. is there.
【図３】（ａ）は、飲み口部付液体用紙容器の一例の斜
視図であり、（ｂ）は、その構造を示す説明図である。FIG. 3 (a) is a perspective view of an example of a liquid paper container with a mouthpiece, and FIG. 3 (b) is an explanatory view showing its structure.
【図４】他の飲み口部付液体用紙容器の一例の斜視図で
ある。FIG. 4 is a perspective view of an example of another liquid paper container with a mouthpiece.
１０……積層材料 １１……積層基材 １２……最外層 １３……最内層 １４……端面 ２０……ヒートシールラッカー層 ３０，４０……封止シート ３１……開封用つまみ １００……液体用紙容器 １１０……胴部 １２０……天部 １３０……底部 １４０……飲み口部 10 ... Laminated material 11 ... Laminated substrate 12 ... Outermost layer 13 ... Innermost layer 14 ... End face 20 ... Heat-seal lacquer layer 30, 40 ... Encapsulating sheet 31 ... Opening knob 100 ... Liquid Paper container 110 …… Body part 120 …… Top part 130 …… Bottom part 140 …… Drinking part
Claims (1)
において、積層材料の飲み口部の外周外側縁部の最外層
面に、リング状のヒートシールラッカー層を形成し、こ
のヒートシールラッカー層上に、開封用つまみをもつ封
止シートを熱融着して、飲み口部を封止したことを特徴
とする易開封飲み口部付液体用紙容器。1. A liquid paper container with a mouthpiece made of a laminated material, wherein a ring-shaped heat seal lacquer layer is formed on the outermost layer surface of the outer peripheral edge of the mouthpiece of the laminated material. A liquid paper container with an easily openable drinking mouth, characterized in that a sealing sheet having an opening knob is heat-fused on the layer to seal the drinking mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6223385A JPH0885541A (en) | 1994-09-19 | 1994-09-19 | Paper container for liquid with easy-to-open drink port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6223385A JPH0885541A (en) | 1994-09-19 | 1994-09-19 | Paper container for liquid with easy-to-open drink port |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0885541A true JPH0885541A (en) | 1996-04-02 |
Family
ID=16797323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6223385A Pending JPH0885541A (en) | 1994-09-19 | 1994-09-19 | Paper container for liquid with easy-to-open drink port |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0885541A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3741696A1 (en) * | 2019-05-24 | 2020-11-25 | Michael Hörauf Maschinenfabrik GmbH u. Co. KG | Paper or paper-like material container and method |
-
1994
- 1994-09-19 JP JP6223385A patent/JPH0885541A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3741696A1 (en) * | 2019-05-24 | 2020-11-25 | Michael Hörauf Maschinenfabrik GmbH u. Co. KG | Paper or paper-like material container and method |
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