JP3923575B2 - Liquid paper container spout combination - Google Patents

Liquid paper container spout combination Download PDF

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Publication number
JP3923575B2
JP3923575B2 JP32906796A JP32906796A JP3923575B2 JP 3923575 B2 JP3923575 B2 JP 3923575B2 JP 32906796 A JP32906796 A JP 32906796A JP 32906796 A JP32906796 A JP 32906796A JP 3923575 B2 JP3923575 B2 JP 3923575B2
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Japan
Prior art keywords
spout
paper container
liquid paper
screw cap
main body
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JPH10157731A (en
Inventor
一樹 山田
憲一 遠藤
淳 福田
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Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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    • 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
    • B65D5/72—Contents-dispensing means
    • B65D5/74—Spouts
    • B65D5/746—Spouts formed separately from the container

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Closures For Containers (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、ホット充填された液体紙容器の冷却時に、水の侵入が起こりにくく、また残存しにくい注出口組合わせ体に関する。
【０００２】
【従来の技術】
従来から果汁飲料、日本酒、めんつゆ、コーヒー飲料等は注出口付き紙容器に充填されて流通、販売されるケースが多い。この場合の注出口の代表的なものは、紙容器の頭部パネルに設けられた貫通孔の周辺で超音波シール等の方式で取り付けられた注出口本体とそれを外側から締めつけるスクリューキャップからなる注出口組合わせ体である。
さらに、これらの内容物は、ロングライフ化を図るために５５〜９５℃でホット充填され、その直後強制冷却されている。冷却方法には水冷と空冷があるが、一般には、液体紙容器に直接冷却水をシャワーリングする方法が行われている。
【０００３】
【発明が解決しようとする課題】
しかるに、ホット充填された紙容器が冷却されると、無論、頭部に付けられた注出口組合わせ体も冷却され、その内部空間内の空気は減圧するので、注出口組合わせ体の螺子部を通って冷却水が空気と一緒に引き込まれ、注出口組合わせ体内部を濡らす結果となり、また一旦侵入した水は乾燥されにくく、消費者が開栓するときに、水滴が発見されて内容物が漏れたものと誤認される問題がある。
さらに、注出口組合わせ体の内部が濡れていることは、若し冷却水が菌で汚染されていたりすると流通過程で菌が繁殖する危険性に繋がるという問題がある。
本発明は、前述の問題点に鑑みてなされたもので、冷却水が侵入しにくく、また侵入しても出易くした液体紙容器の注出口組合わせ体の提供を目的とする。
【０００４】
【課題を解決するための手段】
前記課題を解決するためになされた本発明は、液体紙容器の頭部パネルの所定の位置に取り付けられる注出口本体と該注出口本体に巻き締められるスクリューキャップとからなる注出口組合わせ体において、前記注出口本体の筒状部外壁に螺旋状に設けられた雄螺子と前記スクリューキャップの内壁に螺旋状に設けられた雌螺子の少なくともいずれか一方を、螺旋を横断する貫通溝によって切り欠かれていることを特徴とする内容物をホット充填する液体紙容器の注出口組合わせ体であり、また、前記スクリューキャップの円周状の端縁と該端縁を接触して受け止める前記注出口本体の台座との間の一部に切欠による間隙を設ける、ことを構成とする。
【０００５】
【発明の実施の形態】
以下，本発明を図面を用いてさらに詳しく説明する。
図１は本発明が適用される液体紙容器の説明図である。
図１（ａ）は、液体紙容器の外観図であって、一般に使用されている四角柱の胴部１の上に切妻型の屋根パネル２を配した所謂ゲーベルトップカートンの場合である。その屋根パネル２の略中央には注出口組合わせ体ＣＧが設けられている。なお、本発明の対象は、必ずしもゲーベルトップカートンだけでなく天部が平らなフラットトップカートンであってもよく、また他の形状のカートンであってもよい。
図１（ｂ）は、図１（ａ）における注出口組合わせ体ＣＧの取り付け部の縦断面図である。図１（ｂ）に示すように、注出口組合わせ体ＣＧは、注出口本体ＧとスクリューキャップＣとからなり、注出口組合わせ体ＣＧは、内容物の充填前に、傾斜屋根パネル２に設けられた打ち抜き孔の周辺において、注出口本体Ｇのフリンジ３とパネル２裏面の熱可塑性樹脂との間で超音波シール等によって熱接着されて固定されており、その表側からスクリューキャップＣが巻き締められている。
液体紙容器の開栓にあたって，消費者はスクリューキャップＣを外し、注出口本体Ｇに設けられたメンブラン４を突き破るか、あるいはメンブラン４周辺の薄肉部を破壊して取り去り、始めて中身を注出できるようになっている。
この注出口組合わせ体ＣＧにおけるメンブラン４よりも外側の空間（螺子部間の微小空間も含む）Ｄも、液体紙容器の内溶液Ｌが満たされていない頭部のデッドスペースと同様に、ホット充填後冷却されると減圧し，外部から螺子部の僅かな間隙を通して空気を吸引しようとし、この時同時にスクリューキャップの端縁部から冷却水を吸引し、螺子部を濡らし、水滴が空間Ｄ内に溜まる結果となっている。
【０００６】
図２は、本発明による液体紙容器の注出口組合わせ体の説明図である。
図２（ａ）は、スクリューキャップＣの側面及び断面図であり、
図２（ｂ）は、注出口本体Ｇの側面及び断面図である。
図２（ａ）に示すように、スクリューキャップＣの内面には、螺旋状に雌螺子５が、また図２（ｂ）に示すように、注出口本体Ｇの筒状部外壁には、螺旋状に雄螺子６が設けられ、互いに噛み合うようになっているが、雌螺子５と雄螺子６の両方かあるいはいずれか一方を図２（ａ）、（ｂ）に示すように、螺旋を横断する貫通溝７によって切り欠くことにより、通気孔が形成される。
この通気孔の形成はスクリューキャップＣよりも、注出口本体Ｇ側に設けることが好ましい。それは、スクリューキャップＣ側に設けた貫通溝７の本数が多すぎたり、深すぎるとスクリューキャップＣが変形し易く、オーバーラン等の原因になって巻き締めが甘くなるからである。
さらに、スクリューキャップＣの円周状の端縁とその端縁を受け止める注出口本体Ｇの台座との間に間隙を設けることが望ましい。この間隙は全周に及ぶ必要はなく、図２（ａ）に示すように、スクリューキャップＣの円周状の端縁の一部に切欠８を設けるか、あるいは図２（ｂ）に示すように、端縁を受け止める台座の方の少なくとも一部に切欠９を設ければよい。
以上のように形成された、貫通溝７および切欠８、９による間隙は、通気孔として機能し、注出口組合わせ体ＣＧの内外で生じた圧力差を直ちに矯正して、冷却水の吸引を少なくする効果と、一旦、吸引された冷却水を時間と共に放出させる乾燥効果を示す。
なお、図２（ｂ）に示すように、メンブラン４とそれを注出口本体Ｇから引きちぎるプルリング４’が総て一体成形されている。
従って、以上の如き加工を施した本発明による液体紙容器の注出口組合わせ体ＣＧによれば、消費者が出荷後暫く経って開栓する場合に、螺子部に濡れや水滴が見られず、衛生的で安心感のある注出口つき液体紙容器の提供が可能となる。
【０００７】
液体紙容器に対するホット充填温度は内容物によって異なるが、一般に、果汁飲料の場合は、８０〜９３℃であり、日本酒の場合は、６５℃程度である。この温度の内容物を冷水シャワーで４０℃程度に急冷してから、さらにシュリンク包装、段ボール詰め等の外装が行われ、出荷される。
【０００８】
【実施例】
本発明による液体紙容器の注出口組合わせ体の実施例サンプルを次の仕様で作成した。各部の指定は、図３の本発明による液体紙容器の注出口組合わせ体の実施例製作寸方指定図を参照されたい。

Figure 0003923575
螺子部に設けた貫通溝の本数は２本と４本とし、それぞれの貫通溝の巾と
深さをそれぞれ３ｍｍ、０．５ｍｍにした。
またスクリューキャップＣの端縁部の周辺方向に３ｍｍ，高さ１ｍｍの
切欠８を設けた。
Figure 0003923575
螺子部に設けた貫通溝の本数は２本と４本とし、それぞれの貫通溝の巾と深さをそれぞれ３ｍｍと０．５ｍｍにした。
以上の仕様で作成された注出口本体ＧとスクリューキャップＣとを巻き締めして一体にした注出口組合わせ体ＣＧを１０００ｍｌのゲーベルトップカートの頭部パネルに通常の液体紙容器成形充填機によって超音波シールで接着した。
なお、液体紙容器のブランクの坪量は３８０ｇ／ｍ2 で、積層構成は次の如きものを使用した。
印刷インキ層／ポリエチレン３０μｍ／晒クラフト紙（２８０ｇ／ｍ2 ）／ポリエチレン２０μｍ／酸化珪素蒸着ポリエチレンテレフタレートフィルム１２μｍ／線状低密度ポリエチレン６０μｍ
【０００９】
実施例サンプルを各仕様毎に製作し、また従来の果汁飲料用の液体紙容器を比較例として用意し、これらに８０℃のお湯を充填し、４０℃まで冷却し、１日後と７日後に開栓し、螺子部の水滴の有無を目視でチェックした。その結果、水滴の存在が確認された個数は１００個中次表の通りである。
Figure 0003923575
以上のように、貫通溝の本数を増やすほど、水滴の残留は少なくなり本発明の目的に沿ったものとなるが、スクリューキャップＣの方に２本以上設けると、スクリューキャップＣがオーバーランして定位置で止まらず巻き締めが甘くなるという別の問題が発生するので、今回の実施例サンプルの中では実施例▲１▼、▲２▼が最適であることが判明した。
【００１０】
【発明の効果】
本発明によれば、注出口組合わせ体の螺子部に螺旋を横断する貫通溝７を設けることにより、さらにスクリューキャップ端縁部と台座との接触部に切欠８または９による間隙を設けることによって、ホット充填された液体紙容器の冷却によって、注出口組合わせ体の中に、吸引され、残存する冷却水の量を確実に減らすことが可能となり、消費者クレームを減らし、細菌等の繁殖の危険性のない衛生的な注出口付き液体紙容器を提供することができる。
【図面の簡単な説明】
【図１】本発明が適用される液体紙容器の説明図
【図２】本発明による液体紙容器の注出口組合わせ体の説明図
【図３】本発明による液体紙容器の注出口組合わせ体の実施例製作寸方指定図
【符号の説明】
１ 胴部
２ 屋根パネル
３ フランジ
４ メンブラン
５ 雌螺子
６ 雄螺子
７ 貫通溝
８、９ 切欠
１０ 本発明が適用される液体紙容器
Ｃ スクリューキャップ
Ｄ メンブランよりも外側の空間
Ｇ 注出口本体
ＣＧ 注出口組合わせ体
Ｌ 内溶液[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a spout combination in which water does not easily enter and does not remain when a hot-filled liquid paper container is cooled.
[0002]
[Prior art]
Conventionally, fruit juice drinks, sake, noodle soups, coffee drinks, etc. are often distributed and sold in a paper container with a spout. The typical spout in this case consists of a spout body attached by a method such as ultrasonic sealing around the through hole provided in the head panel of the paper container and a screw cap that tightens it from the outside. It is a spout combination.
Further, these contents are hot-filled at 55 to 95 ° C. in order to achieve a long life and immediately thereafter are forcibly cooled. Cooling methods include water cooling and air cooling. Generally, a method of showering cooling water directly on a liquid paper container is performed.
[0003]
[Problems to be solved by the invention]
However, when the hot-filled paper container is cooled, of course, the spout combination attached to the head is also cooled, and the air in the inner space is depressurized, so the screw portion of the spout combination Cooling water is drawn in with the air through it, and the inside of the spout combination is wetted, and once the water has entered, it is difficult to dry, and when the consumer opens the water droplets are found and the contents There is a problem that is mistaken for leaking.
Furthermore, when the inside of the spout combination is wet, there is a problem that if the cooling water is contaminated with bacteria, it may lead to the risk of the bacteria breeding in the distribution process.
The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a spout combination of a liquid paper container that is difficult for cooling water to enter and that can be easily removed even if it enters.
[0004]
[Means for Solving the Problems]
The present invention made in order to solve the above-mentioned problem is a spout combination comprising a spout main body attached to a predetermined position of a head panel of a liquid paper container and a screw cap wound around the spout main body. And at least one of a male screw provided spirally on the outer wall of the cylindrical portion of the spout main body and a female screw provided spirally on the inner wall of the screw cap is cut out by a through groove crossing the spiral. A spout combination of a liquid paper container for hot-filling the contents, wherein the spout is a contact between the circumferential end of the screw cap and the end. A gap is formed in a part between the base of the main body and a notch .
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to the drawings.
FIG. 1 is an explanatory view of a liquid paper container to which the present invention is applied.
FIG. 1A is an external view of a liquid paper container, and is a case of a so-called gable top carton in which a gable-type roof panel 2 is arranged on a generally used rectangular cylinder body 1. A spout combination CG is provided substantially at the center of the roof panel 2. Note that the subject of the present invention is not necessarily limited to the bevel top carton, but may be a flat top carton having a flat top, or a carton having another shape.
FIG.1 (b) is a longitudinal cross-sectional view of the attaching part of the spout combination CG in Fig.1 (a). As shown in FIG. 1B, the spout combination CG includes a spout main body G and a screw cap C. The spout combination CG is attached to the inclined roof panel 2 before filling the contents. Around the punched hole provided, it is fixed by thermal bonding between the fringe 3 of the spout main body G and the thermoplastic resin on the back of the panel 2 by ultrasonic sealing or the like, and a screw cap C is wound from the front side. It is tightened.
When opening the liquid paper container, the consumer can remove the screw cap C and break through the membrane 4 provided in the spout main body G, or destroy and remove the thin part around the membrane 4, and then the content can be poured out for the first time. It is like that.
The space D outside the membrane 4 in this spout combination CG (including the micro space between the screw portions) D is also hot, like the dead space of the head not filled with the internal solution L of the liquid paper container. When it is cooled after filling, the pressure is reduced and air is sucked from the outside through a slight gap of the screw portion. At the same time, cooling water is sucked from the edge of the screw cap to wet the screw portion, and water droplets in the space D It has become a result to accumulate.
[0006]
FIG. 2 is an explanatory view of the spout combination of the liquid paper container according to the present invention.
FIG. 2A is a side view and a cross-sectional view of the screw cap C.
FIG. 2B is a side view and a cross-sectional view of the spout main body G.
As shown in FIG. 2A, the female screw 5 is spirally formed on the inner surface of the screw cap C, and the outer wall of the cylindrical portion of the spout main body G is spirally formed on the inner surface of the spout main body G as shown in FIG. The male screw 6 is provided in a shape and meshes with each other, but either or both of the female screw 5 and the male screw 6 cross the helix as shown in FIGS. 2 (a) and 2 (b). A vent is formed by cutting through the through-groove 7.
It is preferable to form the vent hole on the spout main body G side rather than the screw cap C. This is because if the number of the through grooves 7 provided on the screw cap C side is too large or too deep, the screw cap C is likely to be deformed, causing overrun or the like, and the tightening becomes sweet.
Furthermore, it is desirable to provide a gap between the circumferential edge of the screw cap C and the base of the spout main body G that receives the edge. The gap does not need to extend over the entire circumference. As shown in FIG. 2A, a notch 8 is provided in a part of the circumferential edge of the screw cap C, or as shown in FIG. In addition, the notch 9 may be provided in at least a part of the pedestal that receives the edge.
The gap formed by the through groove 7 and the notches 8 and 9 formed as described above functions as a vent hole, and immediately corrects the pressure difference generated inside and outside the spout combination CG to suck the cooling water. The effect of reducing and the drying effect which discharge | releases the once sucked cooling water with time are shown.
As shown in FIG. 2 (b), the membrane 4 and the pull ring 4 'for tearing it from the spout main body G are all integrally formed.
Therefore, according to the spout combination CG of the liquid paper container according to the present invention that has been processed as described above, when the consumer opens the plug for a while after shipment, no wetting or water droplets are seen in the screw portion. This makes it possible to provide a hygienic and safe liquid paper container with a spout.
[0007]
Although the hot filling temperature for the liquid paper container varies depending on the contents, it is generally 80 to 93 ° C. for fruit juice drinks and about 65 ° C. for sake. The contents at this temperature are rapidly cooled to about 40 ° C. with a cold water shower, and then the outer packaging such as shrink wrapping and cardboard packing is performed and shipped.
[0008]
【Example】
An example sample of a liquid paper container spout combination according to the present invention was prepared with the following specifications. For the designation of each part, refer to the embodiment production dimension designation diagram of the liquid paper container spout combination according to the present invention in FIG.
Figure 0003923575
The number of through grooves provided in the screw portion was 2 and 4, and the width and depth of each through groove were 3 mm and 0.5 mm, respectively.
Further, a notch 8 of 3 mm and a height of 1 mm was provided in the peripheral direction of the edge of the screw cap C.
Figure 0003923575
The number of through grooves provided in the screw portion was 2 and 4, and the width and depth of each through groove were 3 mm and 0.5 mm, respectively.
The spout combination CG formed by winding the spout main body G and the screw cap C and integrated as described above is integrated into the head panel of a 1000 ml Gebel top cart by a normal liquid paper container molding and filling machine. Bonded with an ultrasonic seal.
In addition, the basic weight of the blank of a liquid paper container was 380 g / m < 2 >, and the following laminated structures were used.
Printing ink layer / polyethylene 30 μm / bleached kraft paper (280 g / m 2 ) / polyethylene 20 μm / silicon oxide deposited polyethylene terephthalate film 12 μm / linear low density polyethylene 60 μm
[0009]
Example samples are prepared for each specification, and conventional liquid paper containers for fruit juice drinks are prepared as comparative examples. These are filled with 80 ° C. hot water, cooled to 40 ° C., and after 1 day and 7 days later. The stopper was opened and the presence or absence of water droplets on the screw portion was visually checked. As a result, the number of confirmed water droplets is as shown in the following table.
Figure 0003923575
As described above, as the number of through-grooves is increased, the amount of water droplets remains and the purpose of the present invention is reduced. However, when two or more screw caps C are provided, the screw cap C overruns. Since another problem occurs that the winding does not stop at a fixed position and the tightening becomes sweet, it has been found that Examples (1) and (2) are optimal among the samples of the present Example.
[0010]
【The invention's effect】
According to the present invention, by providing the through groove 7 that traverses the spiral in the screw portion of the spout combination, and further providing a gap by the notch 8 or 9 in the contact portion between the screw cap edge and the pedestal. The cooling of the hot-filled liquid paper container makes it possible to reliably reduce the amount of cooling water that is sucked into the spout combination and remains, reducing consumer complaints and the propagation of bacteria, etc. It is possible to provide a liquid paper container with a sanitary spout without danger.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a liquid paper container to which the present invention is applied. FIG. 2 is an explanatory diagram of a liquid paper container spout combination according to the present invention. FIG. 3 is a liquid paper container spout combination according to the present invention. Example of body production dimension specification [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Body part 2 Roof panel 3 Flange 4 Membrane 5 Female screw 6 Male screw 7 Through groove 8, 9 Notch 10 Liquid paper container C to which the present invention is applied Screw cap D Space G outside the membrane G Outlet body CG Outlet Solution in combination L

Claims (1)

液体紙容器の頭部パネルの所定の位置に取り付けられる注出口本体と該注出口本体に巻き締められるスクリューキャップとからなる注出口組合わせ体において、前記注出口本体の筒状部外壁に螺旋状に設けられた雄螺子と前記スクリューキャップの内壁に螺旋状に設けられた雌螺子の少なくともいずれか一方が、螺旋を横断する貫通溝によって切り欠かれ、前記スクリューキャップの円周状の端縁と該端縁を接触して受け止める前記注出口本体の台座との間の一部に切欠による間隙が設けられていることを特徴とする内容物をホット充填する液体紙容器の注出口組合わせ体。In a spout combination comprising a spout main body attached to a predetermined position of a head panel of a liquid paper container and a screw cap wound around the spout main body, the outer wall of the tubular portion of the spout main body has a spiral shape At least one of a male screw provided on the inner surface of the screw cap and a female screw provided on the inner wall of the screw cap is cut out by a through groove that crosses the helix, and a circumferential edge of the screw cap. A spout combination of a liquid paper container for hot-filling the contents , characterized in that a gap by a notch is provided in a part between the base of the spout main body which receives the edge in contact .
JP32906796A 1996-11-26 1996-11-26 Liquid paper container spout combination Expired - Lifetime JP3923575B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32906796A JP3923575B2 (en) 1996-11-26 1996-11-26 Liquid paper container spout combination

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32906796A JP3923575B2 (en) 1996-11-26 1996-11-26 Liquid paper container spout combination

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2006008023A Division JP2006103804A (en) 2006-01-16 2006-01-16 Content filling method for paper-made liquid container having spout assembly

Publications (2)

Publication Number Publication Date
JPH10157731A JPH10157731A (en) 1998-06-16
JP3923575B2 true JP3923575B2 (en) 2007-06-06

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JP32906796A Expired - Lifetime JP3923575B2 (en) 1996-11-26 1996-11-26 Liquid paper container spout combination

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JP (1) JP3923575B2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001328626A (en) * 2000-05-19 2001-11-27 Dainippon Printing Co Ltd Spout mounting method
JP2002002758A (en) * 2000-06-14 2002-01-09 Dainippon Printing Co Ltd Pour port stopper
JP4663181B2 (en) * 2001-08-30 2011-03-30 株式会社吉野工業所 Gas vent cap
JP4613469B2 (en) * 2002-07-02 2011-01-19 凸版印刷株式会社 Cooling water mixing prevention cap
JP4748668B2 (en) * 2006-01-31 2011-08-17 日本クラウンコルク株式会社 Combination of container body and cap
JP5004627B2 (en) * 2007-03-28 2012-08-22 日本クラウンコルク株式会社 Hinge cap
JP6278931B2 (en) * 2014-08-22 2018-02-14 凸版印刷株式会社 Outlet stopper and packaging container
WO2016017178A1 (en) * 2014-07-30 2016-02-04 凸版印刷株式会社 Spout stopper and packaging container
US10308402B2 (en) 2014-07-30 2019-06-04 Toppan Printing Co., Ltd. Spout stopper and packaging container

Also Published As

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JPH10157731A (en) 1998-06-16

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