JP4836343B2 - Inner bag for bag-in-box with spout and method for taking out contents - Google Patents
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【０００１】
【発明の属する技術分野】
本発明は、内容物の取り出しが容易なスパウト付きバッグインボックス用内袋に関するものである。具体的には、袋を上下逆さにして内容物と共に内層袋を引き出して反転させることにより内容物を取り出すスパウト付きバッグインボックス用内袋に関するものである。
又、上記バッグインボックス用内袋に食品を充填し、容易に取り出す方法に関するものである。
【０００２】
従来、味噌、あんこ、フラワーペースト等の粘稠な食品、或いは、バター、マーガリン、ショートニング等の充填時には液状であるが取り出し時には固化している食品等を容易に取り出すことができるバッグインボックス用内袋としては、外層袋の中に内層袋が挿入された２重袋で、重ね合わされた両開口部近傍で外層袋の内面と内層袋の外面とが接合された袋が知られている。例えば、実公昭３７−３０１９５号公報、特開昭６２−１２２９２２号公報、更には、特許２７３３１８３号等に開示されている。更に、内容物の充填をスパウトより行い、内容物の取り出しは開口部より行うスパウト付きのバッグインボックス用内袋が知られている。特に、スパウト付きのバッグインボックス用内袋は、充填時に液状体である内容物を充填させるのに好適である。尚、これらの袋から内容物を取り出す際には、袋を上下逆さにして内容物を落下させると共に、内容物と密着している内層袋を引き出して外層袋の内面と内層袋の外面との接合を支点として反転させる。
【０００３】
しかし、スパウト付きのバッグインボックス用内袋を上下逆さにして内容物の落下と共に内層袋を引き出すと、スパウトの取り付け場所が内層袋を反転させる時の支点となる。即ち、袋に取り付けられたスパウトの外周で、袋の中央側が支点となる。
スパウトの取り付けられた所が内層袋を反転させる時の支点になると、内容物を取り出す時に、その部分にスパウトと内層袋を引き裂く力が集中し、破袋を生じさせていた。
【０００４】
【発明が解決しようとする課題】
本発明は、スパウト付きの２重袋において、内層袋を引き出して内容物を取り出す際に、スパウトの取り付け部より破袋を生じさせないバッグインボックス用内袋を提供しようとするものである。
又、バッグインボックス用内袋に充填された食品を容易に取り出す方法を提供しようとするものである。
【０００５】
本発明は、上記課題を解決するために次のような手段を講じた。即ち、外層袋の中に内層袋が挿入され、内容物の取り出し用の開口部近傍で外層袋の内面と内層袋の外面とが接合され、この接合位置よりも開口部側において内層袋が密封され、内層袋を反転させて内容物を取り出すバッグインボックス用内袋において、内層袋にスパウトを取り付け、スパウトの近傍で袋の中央側に外層袋の内面と内層袋の外面との接合部を設ける。好ましくは、スパウトの近傍で袋の中央側に施された外層袋の内面と内層袋の外面との接合部を、開口部近傍に施された外層袋の内面と内層袋の外面との接合と連続させる。又、好ましくは、スパウトの近傍で袋の中央側に施された外層袋の内面と内層袋の外面との接合部を、開口部と平行で、しかも、袋の全周に施し、開口部近傍に施された外層袋の内面と内層袋の外面との接合と兼ねる。更に、上記スパウト付きバッグインボックス用内袋に、充填時には液状で取り出し時には固化する食品を、スパウトから充填し、取り出す際は、内層袋の密封を開封し、内層袋を反転させて固化した食品を取り出す方法。好ましくは、食品が、マーガリン、ファットスプレッド、ショートニング、バター、フラワーペースト、チーズ、チョコレート用油脂、ラード、牛脂、パーム油、ヤシ油またはパーム核油である。
【０００６】
【発明の実施態様】
本発明のスパウト付きバッグインボックス用内袋に用いられるプラスチックフィルムとしては、従来、バッグインボックス用内袋に使用されているプラスチックフィルムを使用することができる。例えば、直鎖状低密度ポリエチレン樹脂等のポリエチレン系樹脂からなるフィルムが好適に用いられる。又、強度や安全性等の面から複数枚のフィルムを重ね合わせたものが好ましい。更に、ガス遮断性樹脂層等の特殊機能を有する樹脂層を設けた積層フィルム等も好適に使用される。
【０００７】
又、本発明のスパウト付きバッグインボックス用内袋に用いられる外層袋や内層袋の形状としては、従来、バッグインボックス用内袋として使用されている形状のものを用いることができる。例えば、矩形の袋状体や、角底シール部を有する袋状体等が用いられる。又、外層袋と内層袋は必ずしも同じ形状である必要はないが、開口部は同じ形状をしているものが好ましい。
特に、外層袋と内層袋が共に四方ヒートシールされた矩形の袋体であると、安価で、しかも、強度的にも優れているので好適である。
【０００８】
そして、本発明のバッグインボックス用内袋には、スパウトが取り付けられている。
スパウトの形状としては、特に限定されるものではなく、従来、液体や粘稠物等の注入口用として使用されているスパウトを用いることができる。
又、スパウトの取り付け方法としても、特に限定されるものではなく、従来一般に行われている方法によって取り付けられたものが使用できる。例えば、スパウトが外層袋と内層袋の片方の面を貫通して装着されていると共に、両袋のフィルムに熱融着されたものが好適に用いられる。
【０００９】
更に、本発明のバッグインボックス用内袋にスパウトを取り付ける位置としては、内容物を開口部より内層袋と共に落下させて取り出すので、開口部に近い位置が好ましい。具体的には、バッグインボックス用内袋の開口部より袋の中央方向に２０乃至１００ｍｍ入った所が好ましい。スパウトの取り付け場所が、バッグインボックス用内袋の開口部に余りにも隣接していると、外層袋の内面と内層袋の外面との接合部分を残して密封部を切断することが困難になる場合がある。
【００１０】
本発明のスパウト付きバッグインボックス用内袋は、外層袋の中に内層袋が挿入され、外層袋の開口部と内層袋の開口部が重ね合わされている。そして、外層袋と内層袋の開口部近傍で外層袋の内面と内層袋の外面とが接合されている。外層袋の内面と内層袋の外面との接合は、ヒートシールにより接合されるのが一般的である。
尚、外層袋の中に内層袋を挿入させるには、完成した外層袋と内層袋を用いることもできるが、袋を製袋する工程で、外層袋の中に内層袋が挿入された状態に製袋することもできる。しかも、開口部近傍の外層袋の内面と内層袋の外面の接合も完成した内層袋を外層袋の中に挿入させてから行うこともできるが、袋を製袋する工程で、外層袋の内面と内層袋の外面とが接合された状態に製袋することもできる。
【００１１】
バッグインボックス用内袋にスパウトを取り付けるには、外層袋に内層袋を挿入させてから、外層袋と内層袋の所定位置を削孔し、該孔にスパウトを貫通させて熱融着により取り付けることができる。又、袋を製袋する工程で、外層袋用や内層袋用のフィルムにスパウトの取り付け用孔を削孔し、外層袋の中に内層袋が挿入された状態で、しかも、スパウトが取り付けられた状態で製袋することもできる。
【００１２】
そして、本発明のスパウト付きバッグインボックス用内袋は、内層袋の開口部が密封されている。しかも、内層袋の開口部が密封されている位置は、外層袋の内面と内層袋の外面とが接合された位置よりも開口部の縁部よりの位置である。
【００１３】
又、本発明のスパウト付きバッグインボックス用内袋は、内層袋の開口部の密封方法については特に限定はないが、内層袋の開口部がテープ状層間易剥離材を介在させて密封されていてもよい。即ち、内層袋の片方の内面にテープ状層間易剥離材の片方のヒートシール層を、内層袋のもう一方の内面にテープ状層間易剥離材のもう一方のヒートシール層を接着させて密封させる。
【００１４】
テープ状層間易剥離材としては、特開平６−２８６７５７号公報や特開平６−３２３５９号公報に記載されているテープ状層間易剥離材が使用される。即ち、熱融着可能なヒートシール層を両最外層とし、手で剥離可能な易剥離層を芯層とするテープ状層間易剥離材を使用する。尚、両最外層のヒートシール層と芯層の易剥離層との間には、耐熱性に優れた基材層等を設けたものが好ましい。又、芯層の易剥離層は、比較的接着強度の弱い樹脂からなる部分的な樹脂層と接着剤や粘着剤からなる層を積層させたものが用いられる。更に、開封時に両最外層等が把手となるように、両最外層等の一方の端を残して芯層の易剥離層を積層させているものが好ましい。
【００１５】
更に、本発明のスパウト付きバッグインボックス用内袋は、スパウトの近傍で袋の中央側に外層袋の内面と内層袋の外面との接合部が設けられていることを最大の特徴とする。
スパウトの近傍とは、スパウトの周囲に隣接しているのは勿論、スパウトから１００ｍｍ程度以内を言う。又、スパウトの近傍で袋の中央側とは、スパウトを基準にして開口部と反対側で、バッグインボックス用内袋を上下逆さにした際に、スパウトよりも上方に位置する側を意味する。
そして、スパウトの近傍で袋の中央側に施される外層袋の内面と内層袋の外面との接合は、一般にはヒートシールによって行われる。
【００１６】
スパウトの近傍で袋の中央側に設けられる外層袋の内面と内層袋の外面との接合部の形状としては、円形でも線状でも構わない。更に、線状は直線でも曲線でも構わない。特に、外層袋の内面と内層袋の外面との接合部が線状でスパウトの袋中央側を覆う形状のものが好ましい。即ち、バッグインボックス用内袋を上下逆さにした際、スパウトの真上にスパウト幅（スパウト直径）を覆うような直線又は曲線の接合部が施されているのが好ましい。
又、接合部が線状の場合、接合部の幅、即ち、シール幅としても、特に限定されるものではないが、２乃至５ｍｍ程度で十分である。
【００１７】
好ましくは、スパウトの近傍で袋の中央側に施された外層袋の内面と内層袋の外面との接合部を、両開口部近傍に施された外層袋の内面と内層袋の外面との接合と連続させる。即ち、スパウトの近傍で袋の中央側に施される接合部を、両開口部近傍に施された接合まで延ばし、繋がせる。具体的な好ましい形態としては、スパウトの近傍で袋の中央側に施される接合部を開口部に向かって傾斜させて延ばし、両開口部近傍に施された接合と連結させる。
【００１８】
又、好ましくは、スパウトの近傍で袋の中央側に施された外層袋の内面と内層袋の外面との接合部が、開口部と平行で、しかも、袋の全周に施されている。勿論、開口部近傍には外層袋の内面と内層袋の外面との接合が設けられているのが一般的である。しかし、開口部近傍に施された外層袋の内面と内層袋の外面との接合を、上記したスパウトの近傍で袋の中央側で、しかも、開口部と平行で袋の全周に施された外層袋の内面と内層袋の外面との接合部と兼用させることもできる。
【００１９】
本発明のスパウト付きバッグインボックス用内袋から、内容物を取り出す方法について説明する。まず、バッグインボックス用内袋の開口部に設けた密封部を切断、或いは、テープ状層間易剥離材を剥離させて開封する。尚、密封部を切断する際に、外層袋の内面と内層袋の外面との接合部分を切り離されないようにする必要がある。次に、バッグインボックス用内袋を上下逆さにし、内容物を自重により内層袋と共に落下させる。そして、引き出された内層袋を、外層袋の内面と内層袋の外面との接合部を支点にして反転させる。スパウト近傍に施させた接合部と開口部近傍に施された接合がそれぞれ独立している場合には、袋の中央よりに存在する接合部を支点として内層袋が反転される。又、スパウト近傍に施させた接合部と開口部近傍に施された接合が連続している場合には、その連続した各接合部を支点として内層袋が反転される。そして、反転された内層袋の内面から内容物を剥離させて取り出す。特に、内容物が、食品、特にマーガリン、ファットスプレッド、ショートニング、バター、フラワーペースト、チーズ、チョコレート用油脂、ラード、牛脂、パーム油、ヤシ油またはパーム核油の場合に好適に使用される。そして、内容物が固形物である場合には、内容物を一つの塊として取り出すことができる。
【００２０】
以下図面を用いて、本発明のスパウト付きバッグインボックス用内袋の一例を説明する。
図１は、外層袋の内面と外層袋の内面の接合部が、スパウトの近傍で中央側に開口部と平行で、しかも、袋の全周に施されたスパウト付きバッグインボックス用内袋の概略平面図である。図２は、内容物を取り出す状態を示した説明図である。
【００２１】
外層袋（１）の中に内層袋（２）が挿入され、しかも、外層袋の開口部と内層袋の開口部が重ね合わされている。そして、内層袋の開口部が密封（３）されていると共に、スパウト（４）が開口部の近傍に取り付けられている。更に、外層袋の内面と内層袋の外面との接合部（５）が、スパウトの近傍で袋の中央側に、開口部と平行で、しかも、袋の全周に施されている。尚、図においては、スパウトの近傍で袋の中央側に設けられた外層袋の内面と内層袋の外面が接合部は、両開口部近傍で外層袋の内面と内層袋の外面との接合を兼用している。
【００２２】
【作用】
バッグインボックス用内袋にスパウトが取り付けられていると、内容物と共に内層袋を引き出す際、スパウトが外層袋にも取り付けられているので、スパウトと内層袋とを引き裂く力がスパウト取り付け周囲の袋中央側に生じ、該部分より破袋が生じ易くなっている。
所が、スパウトの近傍で袋の中央側に外層袋の内面と内層袋の外面とに接合部が設けられていると、内層袋とスパウトを引き裂く力が、その外層袋の内面と内層袋の外面との接合部に加わり、スパウトの取り付け場所には加わらなくなるので、破袋が生じ難くなる。
【００２３】
更に、スパウトの近傍で袋の中央側に施された外層袋の内面と内層袋の外面との接合部が、開口部近傍に施された外層袋の内面と内層袋の外面との接合と連続していると、内層袋を反転させる際の支点が連続的になり、外層袋と内層袋を引き裂く力が一カ所に集中せずに分散するので、更に破袋が生じ難くなる。又、スパウトの近傍で袋の中央側に施された外層袋の内面と内層袋の外面との接合部が開口部と平行で、しかも、袋の全周に設けられていると、内層袋を反転させる支点が直線状になり、より一層破袋が生じ難くなる。尚、この様な形態の場合には、スパウトの近傍で袋の中央側に施された外層袋の内面と内層袋の外面との接合部を開口部近傍に施された外層袋の内面と内層袋の外面との接合と兼用することができる。
【００２４】
【実施例】
以下、実施例を示し、本発明の内容をより具体的に説明する。
〔実施例１〕
厚さが１００μｍの直鎖状低密度ポリエチレン樹脂フィルムからなる矩形の外層袋（６２０×８２０ｍｍ）（開口部の内幅：５８０ｍｍ）に厚さが８０μｍの直鎖状低密度ポリエチレン樹脂フィルムからなる矩形の内層袋（５５０×６９５ｍｍ）（開口部の外幅；５５０ｍｍ）を挿入し、両開口部を重ね合わせた。そして、袋の幅方向の中央で、開口部より袋の中央より７０ｍｍ入った位置（スパウトの周囲と開口部の縁部との距離）に、外層袋と内層袋の片方の面を貫通させてスパウト（直径６０ｍｍ）を熱融着により取り付けた。
更に、内層袋の開口部を幅５ｍｍのヒートシールにて密封させさると共に、スパウトの袋中央側で、袋の中央に５０ｍｍ入った位置（スパウトの周囲と接接合部との距離）に幅５ｍｍのヒートシールによる外層袋と内面と内層袋の外面との接合部を開口部と平行で袋全周に設けてスパウト付きバッグインボックス用内袋を得た。
尚、開口部近傍には、外層袋の内面と内層袋の外面との接合部はあらためて設けなかった。
【００２５】
得られたスパウト付きバッグインボックス用内袋に、流動状のマーガリン１５ｋｇをスパウトより充填し、２日間放置した。スパウト付きバッグインボックス用内袋に充填されたマーガリンの取り出しは、まず、内層袋の開口部に施されているヒートシールによる密封部を切り落として開封した。そして、バッグインボックス用内袋を上下逆さにし、固形化したマーガリンと共に内層袋を引き出し、内層袋を反転させた。その際、内層袋が反転される支点は、外層袋の内面と内層袋の外面とが接合された部分で、スパウトよりも袋の中央よりで、しかも、開口部と平行な直線状であった。そして、反転された内層袋の内面から固形化したマーガリンを剥離して取り出した。
【００２６】
【効果】
本発明のスパウト付きバッグインボックス用内袋は、袋を上下逆さにして内層袋と共に内容物を取り出す際に、スパウトの取り付け部より破袋が生じ難いので、トラブルもなく容易に内容物を取り出すことができる。
そのため、本発明のバッグインボックス用内袋に充填された食品は、スパウトの取り付け部より破袋が生じ難いので、容易に取り出すことができる。
【図面の簡単な説明】
【図１】発明のスパウト付きバッグインボックス用内袋の一例を示す概略平面図である。
【図２】内容物を取り出す状態を示した説明図である。
【符号の説明】
１ ； 外層袋
２ ； 内層袋
３ ； 開口部の密封
４ ； スパウト
５ ； 外層袋の内面と内層袋の外面[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an inner bag for a bag-in-box with a spout from which contents can be easily taken out. Specifically, the present invention relates to an inner bag for a bag-in-box with a spout that takes out the contents by turning the bag upside down and pulling out the inner layer bag together with the contents and inverting it.
The present invention also relates to a method for filling the inner bag for bag-in-box with food and easily taking it out.
[0002]
Conventional bag-in-box that can easily remove viscous foods such as miso, red bean paste, flour paste, etc., or foods that are liquid when filled with butter, margarine, shortening, etc., but solidified when taken out As a bag, a double bag in which an inner layer bag is inserted into an outer layer bag, and a bag in which the inner surface of the outer layer bag and the outer surface of the inner layer bag are joined in the vicinity of the overlapped openings is known. For example, it is disclosed in Japanese Utility Model Publication No. 37-30195, Japanese Patent Application Laid-Open No. 62-122922, and Japanese Patent No. 2733183. Furthermore, a bag-in-box inner bag with a spout is known in which the contents are filled from a spout and the contents are taken out from an opening. In particular, an inner bag for a bag-in-box with a spout is suitable for filling a content that is a liquid at the time of filling. When taking out the contents from these bags, the bags are turned upside down to drop the contents, and the inner layer bag that is in close contact with the contents is pulled out to connect the inner surface of the outer layer bag and the outer surface of the inner layer bag. reversing the junction as a fulcrum.
[0003]
However, if the inner bag for a bag-in-box with a spout is turned upside down and the inner layer bag is pulled out as the contents fall, the place where the spout is attached becomes a fulcrum when the inner layer bag is reversed. That is, on the outer periphery of the spout attached to the bag, the center side of the bag serves as a fulcrum.
When the place where the spout is attached becomes a fulcrum when the inner layer bag is reversed, when the contents are taken out, the force to tear the spout and the inner layer bag concentrates on the portion, causing bag breakage.
[0004]
[Problems to be solved by the invention]
An object of the present invention is to provide an inner bag for a bag-in-box that does not cause bag breakage from a spout attachment portion when the inner layer bag is pulled out and the contents are taken out in a double bag with a spout.
It is another object of the present invention to provide a method for easily taking out food filled in a bag-in-box inner bag.
[0005]
In order to solve the above problems, the present invention has taken the following measures. That is, the inner layer bag is inserted into the outer layer bag, the inner surface of the outer layer bag and the outer surface of the inner layer bag are joined in the vicinity of the opening for taking out the contents, and the inner layer bag is sealed on the opening side from the joining position. In the inner bag for the bag-in-box , the inner layer bag is inverted and the contents are taken out. A spout is attached to the inner layer bag, and a joint between the inner surface of the outer layer bag and the outer surface of the inner layer bag is provided near the spout at the center of the bag. Provide. Preferably, junction of the junction between the inner surface and the inner bag of the external surface of the outer bag has been subjected to the center side of the bag near the spout, the inner surface and the inner bag of the external surface of the outer bag has been subjected to the vicinity of the opening And continue. Also, preferably, the joint between the inner surface and the inner bag of the external surface of the outer bag has been subjected to the center side of the bag near the spout, parallel to the opening, moreover, to facilities all around the bag, the opening It also serves as a joint between the inner surface of the outer layer bag and the outer surface of the inner layer bag applied in the vicinity . Furthermore, in the bag the spouted bag-in-box, a food product solidifies upon retrieval in liquid form during filling, and the filling from the spout, when taking out the opening the sealing of the inner layer bag, and solidified by inverting the inner bag food How to take out. Preferably, the food, margarine, fat spread, shortening, butter, flour paste, cheese, chocolate for fats and oils, lard, beef tallow, palm oil, coconut oil or palm kernel oil.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
As the plastic film used for the inner bag for a bag-in-box with a spout of the present invention, a plastic film conventionally used for an inner bag for a bag-in-box can be used. For example, a film made of a polyethylene resin such as a linear low density polyethylene resin is preferably used. Moreover, what laminated | stacked the several sheets of film from surfaces, such as intensity | strength and safety | security, is preferable. Furthermore, a laminated film provided with a resin layer having a special function such as a gas barrier resin layer is also preferably used.
[0007]
Moreover, as the shape of the outer layer bag or the inner layer bag used for the inner bag for bag-in-box with a spout of the present invention, the shape conventionally used as the inner bag for bag-in-box can be used. For example, a rectangular bag-shaped body, a bag-shaped body having a square bottom seal portion, or the like is used. In addition, the outer layer bag and the inner layer bag do not necessarily have the same shape, but preferably the openings have the same shape.
In particular, it is preferable that the outer bag and the inner bag are rectangular bags that are both heat-sealed because they are inexpensive and excellent in strength.
[0008]
And the spout is attached to the inner bag for bag-in-boxes of this invention.
The shape of the spout is not particularly limited, and a spout that has been conventionally used for injection ports of liquids and viscous materials can be used.
Also, the spout attachment method is not particularly limited, and a spout attachment method that has been conventionally performed can be used. For example, a spout that is attached through one surface of the outer layer bag and the inner layer bag and is heat-sealed to the films of both bags is preferably used.
[0009]
Furthermore, the position where the spout is attached to the inner bag for the bag-in-box of the present invention is preferably a position close to the opening because the contents are dropped together with the inner layer bag from the opening. Specifically, it is preferable that the position is 20 to 100 mm in the central direction of the bag from the opening of the inner bag for bag-in-box. If the spout attachment location is too adjacent to the opening of the inner bag for the bag-in-box, it becomes difficult to cut the sealing portion leaving the joint between the inner surface of the outer bag and the outer surface of the inner bag. There is a case.
[0010]
In the inner bag for a bag-in-box with a spout of the present invention, the inner layer bag is inserted into the outer layer bag, and the opening of the outer layer bag and the opening of the inner layer bag are overlapped. The inner surface of the outer layer bag and the outer surface of the inner layer bag are joined in the vicinity of the opening of the outer layer bag and the inner layer bag. Generally, the inner surface of the outer layer bag and the outer surface of the inner layer bag are bonded by heat sealing.
In order to insert the inner layer bag into the outer layer bag, the completed outer layer bag and inner layer bag can also be used, but in the process of making the bag, the inner layer bag is inserted into the outer layer bag. You can also make bags. In addition, the inner surface of the outer layer bag near the opening and the outer surface of the inner layer bag can be joined after the inner layer bag is inserted into the outer layer bag. And the outer surface of the inner layer bag can be joined together.
[0011]
To attach a spout to an inner bag for a bag-in-box, insert the inner layer bag into the outer layer bag, then drill a predetermined position between the outer layer bag and the inner layer bag, and attach the spout through the hole and attach it by thermal fusion. be able to. Also, in the process of making the bag, the spout attachment hole is drilled in the film for the outer layer bag or the inner layer bag, and the spout is attached with the inner layer bag inserted into the outer layer bag. It is also possible to make a bag in a heated state.
[0012]
And as for the inner bag for bag-in-boxes with a spout of this invention, the opening part of an inner-layer bag is sealed. And the position where the opening part of the inner layer bag is sealed is a position from the edge part of an opening part rather than the position where the inner surface of the outer layer bag and the outer surface of the inner layer bag were joined.
[0013]
The inner bag for the spout-equipped bag-in-box of the present invention is not particularly limited as to the method of sealing the opening of the inner layer bag, but the opening of the inner layer bag is sealed with a tape-like delamination material interposed. May be. That is, one heat seal layer of the tape-like interlayer peelable material is bonded to one inner surface of the inner layer bag, and the other heat seal layer of the tape-like interlayer peelable material is bonded to the other inner surface of the inner layer bag and sealed. .
[0014]
As the tape-like delamination material, tape-like delamination materials described in JP-A-6-286757 and JP-A-6-32359 are used. That is, a tape-like interlayer easily peelable material having heat sealable heat sealable layers as both outermost layers and an easily peelable easily peelable layer as a core layer is used. In addition, what provided the base material layer etc. which were excellent in heat resistance between the heat seal layer of both outermost layers, and the easily peelable layer of a core layer is preferable. Further, as the easily peelable layer of the core layer, a layer in which a partial resin layer made of a resin having a relatively weak adhesive strength and a layer made of an adhesive or a pressure-sensitive adhesive are laminated is used. Further, it is preferable that the core layer has an easily peelable layer laminated so that both outermost layers and the like become grips when opened.
[0015]
Furthermore, the inner bag for a bag-in-box with a spout according to the present invention is characterized in that a junction between the inner surface of the outer layer bag and the outer surface of the inner layer bag is provided near the spout on the center side of the bag.
The vicinity of the spout means that it is within about 100 mm from the spout as well as being adjacent to the periphery of the spout. In addition, the center side of the bag in the vicinity of the spout means the side that is located above the spout when the bag-in-box inner bag is turned upside down on the side opposite to the opening with respect to the spout. .
And joining of the inner surface of the outer-layer bag and the outer surface of an inner-layer bag which are given to the center side of a bag in the vicinity of a spout is generally performed by heat sealing.
[0016]
The shape of the joint portion between the inner surface of the outer bag and the outer surface of the inner bag provided near the spout on the center side of the bag may be circular or linear. Further, the linear shape may be a straight line or a curved line. In particular, it is preferable that the joint portion between the inner surface of the outer layer bag and the outer surface of the inner layer bag is linear and covers the center side of the spout bag. That is, when the bag-in-box inner bag is turned upside down, it is preferable that a straight or curved joint is provided directly above the spout so as to cover the spout width (spout diameter).
When the joint is linear, the width of the joint, that is, the seal width is not particularly limited, but about 2 to 5 mm is sufficient.
[0017]
Preferably, a joint portion between the inner surface of the outer layer bag and the outer surface of the inner layer bag applied to the center side of the bag in the vicinity of the spout is connected to the inner surface of the outer layer bag and the outer surface of the inner layer bag provided near both openings. Make it continuous. That is, the joint portion to be applied to the center side of the bag in the vicinity of the spout, extending in contact Goma subjected in the vicinity of both openings so coupled. Specific preferred form, extending the joint is subjected to the center side of the bag in the vicinity of the spout is inclined toward the opening, is connected to the junction subjected to near both the openings.
[0018]
Preferably, the joint between the inner surface of the outer layer bag and the outer surface of the inner layer bag, which is applied to the center of the bag in the vicinity of the spout, is parallel to the opening and is applied to the entire periphery of the bag. Of course, in the vicinity of opening junction between the inner surface and the inner bag of the external surface of the outer bag is provided with a generally. However, the junction between the inner surface and the inner bag of the external surface of the outer bag has been subjected to the vicinity of the opening at the center side of the bag in the vicinity of the spout described above, moreover, is subjected to the entire circumference of the parallel bag and the opening It is also possible to double the joint between the inner surface of the outer layer bag and the outer surface of the inner layer bag.
[0019]
A method for taking out the contents from the inner bag for the spout-equipped bag-in-box of the present invention will be described. First, the sealing part provided in the opening part of the inner bag for bag-in-box is cut | disconnected or a tape-shaped interlayer easily peelable material is peeled, and it opens. It should be noted that when the sealing portion is cut, it is necessary not to separate the joint portion between the inner surface of the outer layer bag and the outer surface of the inner layer bag. Next, the bag-in-box inner bag is turned upside down, and the contents are dropped together with the inner layer bag by its own weight. Then, the drawn inner layer bag is reversed with the joint portion between the inner surface of the outer layer bag and the outer surface of the inner layer bag as a fulcrum. When the junction subjected to the opening near the junction was subjected to spout vicinity are each independently, inner bag is inverted as a fulcrum joint existing in the center of the bag. In addition, when the joint portion provided near the spout and the joint portion provided near the opening are continuous, the inner layer bag is inverted with each of the continuous joints as a fulcrum. Then, the contents are peeled off from the inner surface of the inverted inner layer bag and taken out. In particular, the contents are preferably used in the case of foods, particularly margarine, fat spreads, shortenings, butters, flour pastes, cheeses, fats for chocolate, lard, beef tallow, palm oil, coconut oil or palm kernel oil. And when a content is a solid substance, a content can be taken out as one lump.
[0020]
Hereinafter, an example of the inner bag for a bag-in-box with a spout of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view of an inner bag for a bag-in-box with a spout in which the joint between the inner surface of the outer-layer bag and the inner surface of the outer-layer bag is parallel to the opening on the center side in the vicinity of the spout. It is a schematic plan view. FIG. 2 is an explanatory view showing a state in which the contents are taken out.
[0021]
The inner layer bag (2) is inserted into the outer layer bag (1), and the opening of the outer layer bag and the opening of the inner layer bag are overlapped. And the opening part of the inner-layer bag is sealed (3), and the spout (4) is attached in the vicinity of the opening part. Furthermore, the junction between the inner surface and the inner bag of the external surface of the outer bag (5) is, on the center side of the bag near the spout, parallel to the opening, moreover, has been applied to the entire circumference of the bag. In the figure, outer surface joint outer bag inner surface and an inner layer bag provided at the center side of the bag near the spout, junction between the inner surface and the inner bag of the external surface of the outer layer bag at both near the opening Is also used.
[0022]
[Action]
When the spout is attached to the inner bag for the bag-in-box, the spout is also attached to the outer layer bag when the inner layer bag is pulled out together with the contents, so the force that tears the spout and the inner layer bag is the bag around the spout attachment It occurs on the center side, and bag breakage is more likely to occur from this portion.
However, if a joint is provided on the inner side of the outer layer bag and the outer surface of the inner layer bag in the vicinity of the spout and on the center side of the bag, the force to tear the inner layer bag and the spout is reduced by the inner surface of the outer layer bag and the inner layer bag. Since it joins the joint with the outer surface and does not join the spout mounting location, bag breakage is less likely to occur.
[0023]
Furthermore, the junction between the inner surface and the inner bag of the external surface of the outer bag has been subjected to the center side of the bag near the spout, and junction between the inner surface and the inner bag of the external surface of the outer bag has been subjected to the vicinity of the opening If it is continuous, the fulcrum when reversing the inner layer bag becomes continuous, and the force of tearing the outer layer bag and the inner layer bag is dispersed without being concentrated in one place, so that it is more difficult to break the bag. In addition, if the joint between the inner surface of the outer layer bag and the outer surface of the inner layer bag applied to the center side of the bag in the vicinity of the spout is parallel to the opening and provided on the entire circumference of the bag, the inner layer bag is The fulcrum to be reversed is linear, and the bag breakage is less likely to occur. In the case of such a form, the inner surface and inner layer of the outer bag provided near the opening at the joint between the inner surface of the outer bag and the outer surface of the inner bag near the spout. it can be also used as the junction of the outer surface of the bag.
[0024]
【Example】
Hereinafter, an Example is shown and the content of this invention is demonstrated more concretely.
[Example 1]
A rectangular outer layer bag (620 × 820 mm) made of a linear low density polyethylene resin film having a thickness of 100 μm (inner width of opening: 580 mm) and a rectangular made of a linear low density polyethylene resin film having a thickness of 80 μm The inner layer bag (550 × 695 mm) (outer width of opening: 550 mm) was inserted, and both openings were overlapped. Then, at the center in the width direction of the bag, one side of the outer layer bag and the inner layer bag is passed through a position (distance between the periphery of the spout and the edge of the opening) that is 70 mm from the center of the bag. A spout (diameter 60 mm) was attached by heat sealing.
Furthermore, the opening of the inner layer bag is sealed with a heat seal having a width of 5 mm, and at the center of the spout bag, 50 mm in the center of the bag (distance between the periphery of the spout and the contact joint) is 5 mm wide. A joint part between the outer layer bag, the inner surface and the outer surface of the inner layer bag by heat sealing was provided on the entire periphery of the bag in parallel with the opening to obtain an inner bag for a bag-in-box with a spout.
In addition, the junction part of the inner surface of an outer layer bag and the outer surface of an inner layer bag was not newly provided in the opening part vicinity.
[0025]
The obtained bag-in-box inner bag for spout was filled with 15 kg of fluid margarine from the spout and left for 2 days. Extraction of margarine filled in the bag spout with bag-in-box was first opened by overlooked off the sealing portion by the heat seal that is applied to the opening of the inner bag. And the inner bag for bag-in-boxes was turned upside down, the inner layer bag was pulled out together with the solidified margarine, and the inner layer bag was inverted. At that time, the fulcrum at which the inner layer bag is reversed is a portion where the inner surface of the outer layer bag and the outer surface of the inner layer bag are joined, and is a straight line from the center of the bag rather than the spout and parallel to the opening. . And the margarine solidified from the inner surface of the inverted inner layer bag was peeled off and taken out.
[0026]
【effect】
The inner bag for a bag-in-box with a spout according to the present invention, when the bag is turned upside down and the content is taken out together with the inner layer bag, it is difficult for bag breakage to occur from the attachment part of the spout. be able to.
Therefore, the food filled in the bag-in-box inner bag of the present invention can be easily taken out because the bag breakage hardly occurs from the spout attachment portion.
[Brief description of the drawings]
FIG. 1 is a schematic plan view showing an example of an inner bag for a bag-in-box with a spout according to the present invention.
FIG. 2 is an explanatory view showing a state in which contents are taken out.
[Explanation of symbols]
1;
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001095101A JP4836343B2 (en) | 2001-03-29 | 2001-03-29 | Inner bag for bag-in-box with spout and method for taking out contents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001095101A JP4836343B2 (en) | 2001-03-29 | 2001-03-29 | Inner bag for bag-in-box with spout and method for taking out contents |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002284183A JP2002284183A (en) | 2002-10-03 |
| JP4836343B2 true JP4836343B2 (en) | 2011-12-14 |
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| JP2001095101A Expired - Fee Related JP4836343B2 (en) | 2001-03-29 | 2001-03-29 | Inner bag for bag-in-box with spout and method for taking out contents |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007238129A (en) * | 2006-03-08 | 2007-09-20 | Toppan Printing Co Ltd | Inner bag for bag-in box |
| JP5966741B2 (en) * | 2012-08-03 | 2016-08-10 | 横浜ゴム株式会社 | Fine powder charging method and container |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5926788A (en) * | 1982-08-05 | 1984-02-13 | ヤマハ株式会社 | Automatic rhythm performancer |
| JPS62122922A (en) * | 1985-11-11 | 1987-06-04 | 鐘淵化学工業株式会社 | Packaging bag |
| JP2898061B2 (en) * | 1990-05-17 | 1999-05-31 | キヤノン株式会社 | Printing control method and apparatus and printing apparatus |
| JP2733183B2 (en) * | 1993-03-22 | 1998-03-30 | カイト化学工業株式会社 | Easy to take out contents |
| JP3844842B2 (en) * | 1997-03-26 | 2006-11-15 | 大倉工業株式会社 | Inner bag for bag in box with easy opening |
| JP2001048229A (en) * | 1999-07-30 | 2001-02-20 | Kyoraku Co Ltd | Shrink package filled with viscous object and laminated film for shrink packaging for filling viscous object |
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