JP3898248B2 - Easy-open paper container - Google Patents

Easy-open paper container Download PDF

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Publication number
JP3898248B2
JP3898248B2 JP34709295A JP34709295A JP3898248B2 JP 3898248 B2 JP3898248 B2 JP 3898248B2 JP 34709295 A JP34709295 A JP 34709295A JP 34709295 A JP34709295 A JP 34709295A JP 3898248 B2 JP3898248 B2 JP 3898248B2
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JP
Japan
Prior art keywords
paper
layer
paper container
opening
uniaxially stretched
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.)
Expired - Fee Related
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JP34709295A
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Japanese (ja)
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JPH09165025A (en
Inventor
裕一 平井
勝弘 山県
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
Priority date (The priority date 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 date listed.)
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Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP34709295A priority Critical patent/JP3898248B2/en
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Publication of JP3898248B2 publication Critical patent/JP3898248B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、ガスバリア性などの密封性を有するとともに、簡単に開封することができる易開封性紙容器に関するものである。
【0002】
【従来の技術】
従来より、スナック菓子、インスタント食品などは、紙を主体とした種々な形の密封性のある紙容器に充填され、市場に流通されて消費に供されている。その中には、カップ形、円筒形などの形状もあり、それらの開封方法は、紙容器の胴部の周方向に帯状の開封部を設けたものが使われている。具体的には、紙容器の胴部の表面層である紙の層に切れ込み線を入れて、一定方向へ切れ易くしているか、あるいは紙容器の胴部の内周面の帯状の開封部に帯状のプラスチックフィルムを貼着し、帯状の開封部を補強し、一定幅で開封し易くしている。
【0003】
【発明が解決しようとする課題】
しかし、これらの開封方法では、容易に開封できないという問題がある。前者の紙容器の胴部の表面層である紙の層に切れ込み線を入れるだけでは、帯状に引き裂いていく途中の段階で、細くなり、切れてしまうこともある。特に紙の目の方向と異なる方向、つまり木材繊維の配向方向と異なる方向に引き裂く場合はその傾向が大きい。また後者の紙容器の胴部の内周面の帯状の開封部に帯状のプラスチックフィルムを貼着し、帯状の開封部を補強する方法でも、紙の目方向や紙容器の材料構成により、引き裂き幅が一定でなくなったり、引き裂き方向の先端が先細りとなり、途中で切れたりする問題がある。さらに補強するための帯状のプラスチックフィルムを貼着する加工が必要であり、コストアップになっている。いずれの方法にしろ、開封し易くするために、紙の目の方向と平行に帯状の開封部を設ける必要がある。この場合、紙容器の胴部の紙の目の方向は横目となり、胴部の開口部にカールの加工ができないため、蓋材を一般的なフラットシールで行うことができず、密封するための特殊な方法をとる必要があるなどの問題点が多い。
【0004】
そこで本発明は、紙容器の胴部に周方向に設けられた帯状の開封部を、紙の目の方向に関わらずに、一定幅で簡単そして確実に引き裂けるようにした易開封性紙容器を提供することを目的とする。
【0005】
【課題を解決するための手段】
本発明は、上記のような課題を解決すべく検討した結果、紙基材を主体とする胴部と、底部と、蓋部とを備える紙容器であって、前記胴部が紙の層の内側にガスバリア性などの密封性を有する層、一軸延伸されたプラスチックフィルム層、熱シール性を有する層をこの順で積層されてなり、ブランクの状態で、前記胴部の紙の層に2条の切れ込み線を前記一軸延伸されたプラスチックフィルム層の延伸方向と平行に直線状に設け、前記容器の前記胴部に周状に帯状の開封部を形成してあることを特徴とする易開封性紙容器である。本発明によれば、ガスバリア性などの密封性があり、一軸延伸されたプラスチックフィルム層が延伸方向に破断されやすいことと、この延伸方向に合わせて胴部のうちで破断しにくい紙の層に2条の切れ込み線をあらかじめ設けておくことにより、紙の目の方向に関わらずに、胴部は2条の切れ込み線に沿って容易にかつ綺麗に破断される。
【0006】
【発明の実施の形態】
上記の本発明について、図面を参照して以下に詳しく説明する。図1乃至図6は、本発明による易開封性紙容器を示す図である。
図1は本発明の易開封性紙容器Aの一部を切欠断面とした側面図である。本発明の易開封性紙容器は、胴部1、底部2、そして蓋3からなる密封性を有する紙容器であり、胴部1の上端にカール部4が形成されているとともに、胴部1の上部側の周方向に、この胴部1を上下に2分割するための帯状の開封部5が設けられている。
【0007】
図2は本発明の易開封性紙容器Aの胴部1の材料構成および帯状の開封部5の切れ込み線6、6の断面を示している。図2に示すように、胴部1は、表面側より主体となる紙の層10、接着層11、ガスバリア性などの密封性を有する層12、接着層13、一軸延伸されたプラスチックフィルム層14、そしてヒートシール性を有する層15からなっている。
【0008】
このうち、紙の層10は、カップ原紙をはじめとした板紙が使用され、容器に保形性を付与するとともに、表面に美麗な印刷をするための印刷適性がよく、廃棄し易いという特徴がある。坪量は、容器の形態により異なるが、100〜400g/m2 が好ましい。
【0009】
ガスバリア性などの密封性を有する層12としては、種々のプラスチックフィルム、アルミニウム箔、アルミニウム蒸着をしたプラスチックフィルム、シリカなどの無機物を蒸着したプラスチックフィルムあるいはそれらの複合積層体などが使用される。
【0010】
一軸延伸されたプラスチックフィルム層14は、易開封性紙容器Aを周方向に開封しやすくするためのものであり、一軸延伸されたポリエチレンフィルム、一軸延伸されたポリプロピレンフィルムなどが使用される。
【0011】
接着層11は、紙の層10とガスバリア性などの密封性を有する層12とを貼り合わせる層で溶融したポリエチレン樹脂を使い、押し出しコーティング法によって行われる。
【0012】
接着層13は、ガスバリア性などの密封性を有する層12と一軸延伸されたプラスチックフィルム層14とを貼り合わせる層で、二液型ウレタン系樹脂などが使用される。
【0013】
ヒートシール性を有する層15は、組み立て時において、胴貼り部のヒートシール、および胴部1と底部2、胴部1と蓋3のヒートシールを行うものであり、ポリエチレン樹脂、ポリプロピレン樹脂、ポリエステル樹脂などが使用される。主に、押し出しコーティング法により加工される。
【0014】
また、帯状の開封部5の両側に設けられた切れ込み線6、6は、紙の層10にのみ入れられる。切れ込み線6、6の深さは、少なくとも紙の厚さの1/2以上の深さとすることが好ましく、また、ガスバリア性などの密封性をもつ層12に達しない程度の深さまで深く入れることが好ましい。
【0015】
図3は帯状の開封部5の外側端縁の摘まみ片8の周辺を示している。摘まみ片8の両外側端線には、摘まみ片8を摘まみ、引っ張り、開封を始めるきっかけをつけるための一対のノッチ7、7を付けている。摘まみ片8の両側にノッチ7、7を設けた時の切り込み線6は、二つのノッチ7、7の先端部の1〜5mm外側に設けることが好ましい。なお、胴部1に設ける帯状の開封部5の位置は、特に限定されるものではない。
【0016】
切り込み線6、6を設ける方法は、打ち抜き工程で、紙の層10、ガスバリア性などの密封性を有する層12、一軸延伸されたプラスチックフィルム層14、そして熱シール性を有する層15を積層した積層体の紙の面側から刃を入れて、深さを調節している。紙の層10のみに切り込み線6、6を設けるように調節することは、かなり難しく、他の層に及んでしまう危険性もある。この危険性を防ぐために、まず、切れ込み線6、6をあらかじめ入れておいた紙の層10に、接着層11、ガスバリア性などの密封性を有する層12、接着層13、一軸延伸されたプラスチックフィルム層14、そして熱シール性を有する層15を積層する方法もある。この方法によれば、紙の層10を貫通した切れ目、あるいは貫通したミシン目を入れることができる。
【0017】
開封にあたっては、摘まみ片8を持ち、帯状の開封部5を引っ張れば、切り込み線6、6に沿って胴部1を破断するように開封がなされる。内面での引き裂きによる開封は、摘まみ片8のノッチ7、7できっかけを作り、一軸延伸プラスチックフィルム14でリードし、外面での引き裂きによる開封は、摘まみ片8のノッチ7、7できっかけを作り、切り込み線6、6が紙の目の方向への紙の破れや広がりを防いでいる。
【0018】
さらに、図4には、開封後の再封性を考慮した形態の易開封性紙容器Bを示している。帯状の開封部5を引っ張って開封した後、分断された内容物を収納している本体から、一部内容物を取り出した後、再び簡単に封をする方法として、開口部を内側に折り込む形態である。このような形態は、図5に示すように、ブランクにあらかじめ折り込み用罫線9を入れておくことで、帯状の開封部5による開封後に折り込み用罫線9の上部に位置する開口部を内側に折り込むことができ、簡単に再封することができる。
【0019】
紙容器の形態は、テーパーのある円筒形に必ずしも限定されるものではなく、円筒形、開口部断面形状が三角形、四角形、五角形、六角形などの多角形状である角筒形、箱型など任意の形態であってもよい。
【0020】
【実施例】
次に、本発明について実施例をあげて、さらに具体的に説明する。
易開封性紙容器Aの本体は、胴部1の材料構成が、表面からカップ原紙250g/m2 /ポリエチレン15μ/アルミニウム箔9μ/接着剤/一軸延伸ポリエチレン30μ/ポリエチレン30μからなる積層体で、底部2の材料構成が、表からポリエチレン30μ/カップ原紙250g/m2 /ポリエチレン15μ/アルミニウム箔9μ/ポリエチレン40μからなる積層体を使用している。そして、胴部1となる積層体をほぼ扇形のブランクに打ち抜くと同時に、図5に示すように、10mm巾の摘まみ片8、そして摘まみ片8の両面に一対のノッチ7、7を設け、ついで、ノッチ7、7の各先端から2mm外側に切れ込み線6、6、そして折り込み用罫線9を加工した。紙の目の方向は、縦方向(図5において上下方向)としている。このブランクと底部2の材料を用い紙カップ成型機で、図6−aに示すように、フランジにカール部4を持つカップ状の紙容器を作製した。カップ状の紙容器に内容物を充填した後、蓋2として、材料構成が、晒クラフト紙90g/m2 /接着剤/アルミニウム7μ/ポリエチレン15μ/ホットメルト接着剤50μからなる積層体を用い、カップ状の紙容器のカール部4と蓋3のホットメルト接着剤の面とをトレーシーラーで密封して本発明の易開封性紙容器を得た。そして、本発明の易開封性紙容器は、店頭における陳列時のディスプレイ効果や、消費者による使用時の取り扱い性を高めた。図6−bに示すように、一般的な紙カップを倒立した形態の易開封性紙容器Cのように作製して使用してもよいものである。
【0021】
【発明の効果】
本発明の易開封性紙容によれば、ガスバリア性などの密封性があり、一軸延伸されたプラスチックフィルム層が延伸方向に破断されやすいことと、この延伸方向に合わせて胴部のうちで破断しにくい紙の層に2条の切れ込み線をあらかじめ設けておくことにより、紙の目の方向に関わらずに、胴部は2条の切れ込み線に沿って一定の幅で容易にかつ綺麗に破断することができる。
【図面の簡単な説明】
【図1】本発明による易開封性紙容器の一実施例を示す一部を切欠断面とした概略側面図である。
【図2】本発明による易開封性紙容器の胴部の材料構成、および帯状の開封部の切れ込み線の断面図である。
【図3】本発明による易開封性紙容器の帯状の開封部の外側端縁の摘まみ片周辺を示す図である。
【図4】本発明による易開封性紙容器の他の実施例における開封後の再封性を考慮した形態を示す斜視図である。
【図5】本発明による易開封性紙容器の他の実施例における胴部のブランクを示す平面図である。
【図6】本発明による易開封性紙容器の一実施例を示す形態の斜視図である。
【符号の説明】
A 易開封性紙容器
B 易開封性紙容器(再封性のある形態)
C 易開封性紙容器(倒立した形態)
1 胴部
2 底部
3 蓋
4 カール部
5 帯状の開封部
6 切り込み線
7 ノッチ
8 摘まみ片
9 折り込み罫線
10 紙の層
11 接着層
12 一軸延伸されたプラスチックフィルム層
13 接着層
14 ガスバリア性などの密封性を有する層
15 熱シール性を有する層
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an easily openable paper container that has a sealing property such as a gas barrier property and can be easily opened.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, snack confectionery, instant food, and the like are filled in various forms of sealed paper containers mainly made of paper and distributed to the market for consumption. Among them, there are shapes such as a cup shape and a cylindrical shape, and those opening methods are used in which a belt-like opening portion is provided in the circumferential direction of the body portion of the paper container. Specifically, the paper layer, which is the surface layer of the body of the paper container, has a cut line to make it easier to cut in a certain direction, or on the band-shaped opening on the inner peripheral surface of the body of the paper container A band-shaped plastic film is attached to reinforce the band-shaped opening, making it easy to open with a certain width.
[0003]
[Problems to be solved by the invention]
However, these opening methods have a problem that they cannot be easily opened. If a cut line is simply made in the paper layer which is the surface layer of the former body of the paper container, it may become thin and cut in the middle of tearing into a strip shape. In particular, when tearing in a direction different from the direction of the paper eyes, that is, in a direction different from the orientation direction of the wood fibers, the tendency is large. In addition, the latter method can also be used to reinforce the band-shaped opening by sticking a band-shaped plastic film to the band-shaped opening on the inner peripheral surface of the body of the paper container, depending on the direction of the paper and the material configuration of the paper container. There is a problem that the width is not constant, or the tip in the tearing direction is tapered and cut off in the middle. Furthermore, the process which sticks the strip | belt-shaped plastic film for reinforcement is required, and has increased the cost. In any method, in order to facilitate opening, it is necessary to provide a band-shaped opening portion parallel to the direction of the paper eyes. In this case, the direction of the eyes of the paper in the trunk of the paper container is horizontal, and the curl cannot be processed in the opening of the trunk. Therefore, the lid cannot be sealed with a general flat seal, and is sealed. There are many problems such as the need to take special measures.
[0004]
Therefore, the present invention provides an easily openable paper container in which a band-shaped opening provided in the circumferential direction of the body of the paper container is easily and surely torn regardless of the direction of the paper eyes. The purpose is to provide.
[0005]
[Means for Solving the Problems]
As a result of studying to solve the above-mentioned problems, the present invention is a paper container comprising a trunk mainly composed of a paper base, a bottom, and a lid, wherein the trunk is a paper layer. A layer having a sealing property such as gas barrier property, a uniaxially stretched plastic film layer, and a layer having heat sealing property are laminated in this order on the inside, and in a blank state, two strips are formed on the paper layer of the body portion. An easy-opening characteristic characterized in that a slit-like cut line is provided in a straight line parallel to the stretching direction of the uniaxially stretched plastic film layer, and a belt-shaped opening is formed in the body of the container. It is a paper container. According to the present invention, there is a sealing property such as gas barrier property, and the uniaxially stretched plastic film layer is easily broken in the stretching direction, and the paper layer is not easily broken in the body portion in accordance with the stretching direction. By providing the two cut lines in advance, the body portion is easily and cleanly broken along the two cut lines regardless of the direction of the paper eyes.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in detail below with reference to the drawings. FIG. 1 thru | or FIG. 6 is a figure which shows the easily openable paper container by this invention.
FIG. 1 is a side view in which a part of an easily openable paper container A of the present invention is cut away. The easy-open paper container of the present invention is a paper container having a sealing property comprising a body part 1, a bottom part 2 and a lid 3. A curl part 4 is formed on the upper end of the body part 1, and the body part 1 In the circumferential direction on the upper side, a band-shaped opening 5 for dividing the body 1 into two parts is provided.
[0007]
FIG. 2 shows the material structure of the body 1 of the easily openable paper container A of the present invention and the cross-sections of the cut lines 6 and 6 of the band-shaped opening 5. As shown in FIG. 2, the body 1 includes a paper layer 10, an adhesive layer 11, a sealing layer 12 such as a gas barrier property, an adhesive layer 13, and a uniaxially stretched plastic film layer 14. And a layer 15 having heat sealability.
[0008]
Among these, the paper layer 10 is made of paperboard such as cup base paper, has a feature that it imparts shape retention to the container, has good printability for beautiful printing on the surface, and is easy to discard. is there. The basis weight varies depending on the shape of the container, but 100 to 400 g / m 2 is preferable.
[0009]
As the layer 12 having gas tightness such as gas barrier property, various plastic films, aluminum foil, plastic film deposited with aluminum, plastic film deposited with an inorganic material such as silica, or a composite laminate thereof may be used.
[0010]
The uniaxially stretched plastic film layer 14 is used for easily opening the easily openable paper container A in the circumferential direction, and a uniaxially stretched polyethylene film, a uniaxially stretched polypropylene film, or the like is used.
[0011]
The adhesive layer 11 is formed by an extrusion coating method using a polyethylene resin melted in a layer in which a paper layer 10 and a layer 12 having a gas barrier property or the like are bonded.
[0012]
The adhesive layer 13 is a layer for bonding the sealing layer 12 such as gas barrier property and the plastic film layer 14 uniaxially stretched, and a two-component urethane resin or the like is used.
[0013]
The heat-sealable layer 15 performs heat sealing of the body-paste part and heat sealing of the body part 1 and the bottom part 2 and the body part 1 and the lid 3 during assembly. The polyethylene resin, polypropylene resin, polyester Resin is used. Mainly processed by extrusion coating.
[0014]
Further, the cut lines 6, 6 provided on both sides of the band-shaped opening 5 are put only in the paper layer 10. The depths of the cut lines 6 and 6 are preferably at least half the thickness of the paper, and should be deep enough not to reach the layer 12 having gas tightness such as gas barrier properties. Is preferred.
[0015]
FIG. 3 shows the periphery of the tab 8 on the outer edge of the band-shaped opening 5. A pair of notches 7 and 7 are provided at both outer end lines of the knob piece 8 for picking the knob piece 8, pulling, and opening the opening. The cut line 6 when the notches 7 and 7 are provided on both sides of the knob 8 is preferably provided 1 to 5 mm outside the tip portions of the two notches 7 and 7. In addition, the position of the strip | belt-shaped opening part 5 provided in the trunk | drum 1 is not specifically limited.
[0016]
In the method of providing the cut lines 6 and 6, a paper layer 10, a layer 12 having a sealing property such as a gas barrier property, a uniaxially stretched plastic film layer 14, and a layer 15 having a heat sealing property are laminated in a punching process. The blade is inserted from the paper side of the laminate to adjust the depth. It is quite difficult to adjust the cut lines 6 and 6 to be provided only in the paper layer 10, and there is a risk of reaching other layers. In order to prevent this danger, first, the paper layer 10 in which the cut lines 6 and 6 are put in advance, the adhesive layer 11, the sealing layer 12 such as a gas barrier property, the adhesive layer 13, uniaxially stretched plastic There is also a method of laminating the film layer 14 and the layer 15 having heat sealing properties. According to this method, a cut or a perforation that penetrates the paper layer 10 can be made.
[0017]
In opening, if the holding piece 8 is held and the band-like opening portion 5 is pulled, the opening is performed so as to break the body portion 1 along the cut lines 6 and 6. Opening by tearing on the inner surface creates the notch 7, 7 of the pick piece 8, leading with the uniaxially stretched plastic film 14, opening by tearing on the outer surface is the notch 7, 7 of the pick piece 8 The cut lines 6 and 6 prevent the tearing and spreading of the paper in the direction of the paper eyes.
[0018]
Furthermore, FIG. 4 shows an easily openable paper container B in a form that takes into account resealability after opening. After opening the strip-shaped opening 5 by pulling out a part of the contents from the main body containing the divided contents, the opening is folded inward as a simple sealing method. It is. In such a configuration, as shown in FIG. 5, the folding ruled line 9 is put in the blank in advance, so that the opening located above the folding ruled line 9 is folded inward after opening by the band-shaped opening part 5. Can be easily resealed.
[0019]
The shape of the paper container is not necessarily limited to a tapered cylindrical shape, and is arbitrary such as a cylindrical shape, a rectangular cylindrical shape having a sectional shape of an opening, such as a triangle, a quadrangle, a pentagon, and a hexagon, and a box shape. It may be a form.
[0020]
【Example】
Next, the present invention will be described more specifically with reference to examples.
The main body of the easily openable paper container A is a laminate in which the material constitution of the body part 1 is composed of a cup base paper 250 g / m 2 / polyethylene 15 μ / aluminum foil 9 μ / adhesive / uniaxially stretched polyethylene 30 μ / polyethylene 30 μm from the surface. The material composition of the bottom part 2 uses the laminated body which consists of polyethylene 30micro / cup base paper 250g / m < 2 > / polyethylene 15micro / aluminum foil 9micro / polyethylene 40micro from the table | surface. And at the same time as punching out the laminated body which becomes the trunk | drum 1 to a substantially fan-shaped blank, as shown in FIG. 5, a pair of notches 7 and 7 are provided on both sides of the 10 mm wide knob 8 and the knob 8. Then, the cut lines 6 and 6 and the folding ruled line 9 were processed 2 mm outward from the respective tips of the notches 7 and 7. The direction of the paper eyes is the vertical direction (vertical direction in FIG. 5). As shown in FIG. 6A, a cup-shaped paper container having a curled portion 4 on a flange was produced with a paper cup molding machine using the blank and the material of the bottom portion 2. After filling the contents into a cup-shaped paper container, as the lid 2, a laminate comprising a bleached kraft paper 90 g / m 2 / adhesive / aluminum 7 μ / polyethylene 15 μ / hot melt adhesive 50 μ is used, The curled portion 4 of the cup-shaped paper container and the hot melt adhesive surface of the lid 3 were sealed with a tray sealer to obtain an easily openable paper container of the present invention. And the easily openable paper container of this invention raised the display effect at the time of display in a shop front, and the handleability at the time of use by a consumer. As shown in FIG. 6B, a general paper cup may be prepared and used like an easily openable paper container C in an inverted form.
[0021]
【The invention's effect】
According to the easily openable paper container of the present invention, there is a sealing property such as gas barrier property, and the uniaxially stretched plastic film layer is easily broken in the stretching direction, and breaks in the body portion in accordance with the stretching direction. By providing two cut lines in advance on the hard-to-break paper layer, the body can be easily and cleanly broken along the two cut lines with a constant width regardless of the direction of the paper eyes. can do.
[Brief description of the drawings]
FIG. 1 is a schematic side view showing a cutaway cross section of an embodiment of an easily openable paper container according to the present invention.
FIG. 2 is a cross-sectional view of a material structure of a body portion of an easily openable paper container according to the present invention and a cut line of a band-shaped opening portion.
FIG. 3 is a view showing a periphery of a pick piece on an outer edge of a band-shaped opening portion of an easily openable paper container according to the present invention.
FIG. 4 is a perspective view showing a form in consideration of resealability after opening in another embodiment of an easily openable paper container according to the present invention.
FIG. 5 is a plan view showing a body blank in another embodiment of an easily openable paper container according to the present invention.
FIG. 6 is a perspective view of an embodiment showing an embodiment of an easily openable paper container according to the present invention.
[Explanation of symbols]
A Easy-openable paper container B Easy-openable paper container (form with resealability)
C Easy-open paper container (inverted form)
DESCRIPTION OF SYMBOLS 1 trunk | drum 2 bottom part 3 lid | cover 4 curl part 5 strip | belt-shaped opening part 6 notch line 7 notch 8 picking piece 9 folding ruled line 10 paper layer 11 adhesive layer 12 uniaxially stretched plastic film layer 13 adhesive layer 14 Sealing layer 15 Heat sealing layer

Claims (1)

紙基材を主体とする胴部と、底部と、蓋部とを備える紙容器であって、前記胴部が紙の層の内側にガスバリア性などの密封性を有する層、一軸延伸されたプラスチックフィルム層、熱シール性を有する層をこの順で積層されてなり、ブランクの状態で、前記胴部の紙の層に2条の切れ込み線を前記一軸延伸されたプラスチックフィルム層の延伸方向と平行に直線状に設け、前記紙容器の前記胴部に周状に帯状の開封部を形成し、該帯状の開封部の外側端縁に摘まみ片を設け、該摘まみ片の両側にノッチを設け、該ノッチの先端部を前記切り込み線から1〜5mm内側に設けたことを特徴とする易開封性紙容器。A paper container comprising a body mainly composed of a paper base, a bottom, and a lid, wherein the body is a layer having a gas barrier property or the like inside the paper layer, and a uniaxially stretched plastic A film layer and a heat-sealable layer are laminated in this order, and in a blank state, two cut lines are parallel to the stretching direction of the uniaxially stretched plastic film layer in the body paper layer. A strip-shaped opening is formed around the body of the paper container, a grip piece is provided on the outer edge of the strip-shaped opening, and notches are formed on both sides of the grip piece. An easily openable paper container, characterized in that the notch tip is provided 1 to 5 mm inside from the cut line .
JP34709295A 1995-12-15 1995-12-15 Easy-open paper container Expired - Fee Related JP3898248B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34709295A JP3898248B2 (en) 1995-12-15 1995-12-15 Easy-open paper container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34709295A JP3898248B2 (en) 1995-12-15 1995-12-15 Easy-open paper container

Publications (2)

Publication Number Publication Date
JPH09165025A JPH09165025A (en) 1997-06-24
JP3898248B2 true JP3898248B2 (en) 2007-03-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP34709295A Expired - Fee Related JP3898248B2 (en) 1995-12-15 1995-12-15 Easy-open paper container

Country Status (1)

Country Link
JP (1) JP3898248B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002019764A (en) * 2000-07-04 2002-01-23 Toppan Printing Co Ltd Resealable hermetic composite container
FI20040431A (en) * 2004-03-22 2005-09-23 Stora Enso Oyj Fiberglass cup pack
JP4857871B2 (en) * 2006-04-03 2012-01-18 大日本印刷株式会社 Paper container

Also Published As

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