JP2644703B2 - Liquid storage bag - Google Patents
Liquid storage bagInfo
- Publication number
- JP2644703B2 JP2644703B2 JP9087395A JP9087395A JP2644703B2 JP 2644703 B2 JP2644703 B2 JP 2644703B2 JP 9087395 A JP9087395 A JP 9087395A JP 9087395 A JP9087395 A JP 9087395A JP 2644703 B2 JP2644703 B2 JP 2644703B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- liquid storage
- supply passage
- liquid supply
- storage space
- 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 - Lifetime
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Description
【０００１】[0001]
【産業上の利用分野】本発明は、水等の液体を運搬又は
貯留する場合に用いられる合成樹脂フィルム製の液体収
納袋の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a liquid storage bag made of a synthetic resin film used for carrying or storing a liquid such as water.
【０００２】[0002]
【従来の技術】従来の液体収納袋では、重ね合わされた
薄い合成樹脂製フィルムを、それらの対向内面間に液体
収納空間及び当該液体収納空間に対して外部から液体を
供給するための液体供給通路を現出する状態で袋状に熱
融着するとともに、前記液体供給通路を挟んで相対向す
る部位に、前記液体収納空間内に突出する偏平筒状部を
備えた柔軟な合成樹脂製の逆止弁体部を挿入し、当該逆
止弁体部と合成樹脂製フィルムとを液密状態で熱融着し
ていた（例えば、実開昭６０−１０１４４０号、実開昭
５７−１８８６４９号）。2. Description of the Related Art In a conventional liquid storage bag, a thin synthetic resin film which is superimposed is provided between its opposed inner surfaces in a liquid storage space and a liquid supply passage for supplying a liquid to the liquid storage space from outside. In a state in which the liquid supply passage is heat-fused in a state where the liquid supply passage is interposed, a flexible synthetic resin inverted portion having a flat cylindrical portion protruding into the liquid storage space is provided at a portion opposed to the liquid supply passage. The check valve body was inserted, and the check valve body and the synthetic resin film were heat-sealed in a liquid-tight state (for example, Japanese Utility Model Laid-Open No. 60-101440, Japanese Utility Model Laid-Open No. 57-188649). .
【０００３】[0003]
【発明が解決しようとする課題】この種の液体収納袋で
は、立方体状に成形された液体収納容器に比して保管ス
ペースが非常に少なくて済むばかりでなく、前記液体収
納空間に液体を収納した状態で外部から圧力が作用して
も、これに伴って液体収納空間の内圧が上昇すると、液
体収納空間内に突出する偏平筒状部の外面に圧力が作用
して当該偏平筒状部の内面同士が液密状態に密着するか
ら、収納された液体が液体供給通路を通して外部に洩れ
出すことがなく、しかも、軽量であるため、運搬時にお
ける取り扱いの容易化を図ることができる。しかしなが
ら、従来では、液体収納袋を構成する薄い合成樹脂製の
フィルム以外に、逆止弁機能を備えた逆止弁体部を予め
製作して準備しておかなければならず、しかも、重ね合
わされた薄い合成樹脂製フィルムの周縁部の所要箇所を
袋状に熱融着する前に、前記液体供給通路の形成箇所に
相当する部位に薄くて柔軟性のある逆止弁体部を挿入
し、その挿入位置及び挿入姿勢を維持した状態で熱融着
しなければならないため、袋製造工程の自動化のための
構造が非常に複雑化し、製造コストの高騰化を招来し易
い。本発明は、上記の実情に鑑みてなされたものであっ
て、その目的は、収納液体の洩れ出し防止効果の高い液
体収納袋を製造コスト面で有利に製作することができる
ようにする点にある。This type of liquid storage bag requires not only a very small storage space as compared with a cubic liquid storage container, but also a liquid storage space. Even if pressure is applied from the outside in this state, when the internal pressure of the liquid storage space rises with this, pressure acts on the outer surface of the flat cylindrical portion projecting into the liquid storage space, and the flat cylindrical portion Since the inner surfaces are in close contact with each other in a liquid-tight state, the stored liquid does not leak to the outside through the liquid supply passage, and is lightweight, so that handling during transportation can be facilitated. However, in the related art, in addition to the thin synthetic resin film constituting the liquid storage bag, a check valve body having a check valve function must be manufactured and prepared in advance, and moreover, the check valve body is overlapped. Before heat-sealing a required portion of the peripheral portion of the thin synthetic resin film into a bag shape, a thin and flexible check valve body portion is inserted into a portion corresponding to a portion where the liquid supply passage is formed, Since heat fusion must be performed while maintaining the insertion position and the insertion posture, the structure for automating the bag manufacturing process becomes very complicated, and the manufacturing cost tends to increase. The present invention has been made in view of the above circumstances, and an object of the present invention is to make it possible to manufacture a liquid storage bag having a high effect of preventing leakage of stored liquid in terms of manufacturing cost. is there.
【０００４】[0004]
【課題を解決するための手段】前記目的を達成するため
に、本発明による液体収納袋の第１特徴構成は、複数の
柔軟な合成樹脂製の基材フィルムを層状に接合してなる
ラミネートフィルムを重ね合せ、その重ね合わされたラ
ミネートフィルムを、それのらの対向内面間に液体収納
空間及び当該液体収納空間に対して外部から液体を供給
するための液体供給通路を現出する状態で袋状に熱融着
し、前記ラミネートフィルムのうち、前記液体供給通路
を挟んで相対向する部位の各々の基材フィルム間に、前
記液体収納空間に連通する非接着部分を形成して、前記
非接着部分よりも液体供給通路側に位置する基材フィル
ム部分を、前記液体収納空間の内圧が上昇したときに互
いに密着して液体供給通路を液密状態で閉止する逆止弁
膜に構成した点にある。In order to achieve the above object, a first characteristic configuration of a liquid storage bag according to the present invention is a laminated film formed by joining a plurality of flexible synthetic resin base films in layers. Are stacked in a bag-like state in which a liquid storage space and a liquid supply passage for supplying a liquid to the liquid storage space from the outside are exposed between the opposed inner surfaces thereof. The non-adhesive portion communicating with the liquid storage space is formed between each of the base films of the laminated film facing each other across the liquid supply passage, and the non-adhesive portion is formed. The base film portion located closer to the liquid supply passage side than the portion is configured as a check valve film that closes together and closes the liquid supply passage in a liquid-tight state when the internal pressure of the liquid storage space increases. That.
【０００５】本発明による液体収納袋の第２特徴構成
は、前記液体収納袋の第１特徴構成において、前記重ね
合わされたラミネートフィルムのうち、前記液体供給通
路が開口する側の両端部分は、非接着状態で重ね合わさ
れ、この非接着状態の両端部分の相対向面間に、前記液
体供給通路の一端側が開口させられているとともに、前
記両端部分の各々には取手用貫通孔が形成されている点
にある。In a second characteristic configuration of the liquid storage bag according to the present invention, in the first characteristic configuration of the liquid storage bag, both ends of the laminated film on the side where the liquid supply passage opens are non-exposed. One end of the liquid supply passage is opened between the opposing surfaces of both ends in the non-adhered state, and a through hole for a handle is formed in each of the both ends. On the point.
【０００６】本発明による液体収納袋の第３特徴構成
は、前記液体収納袋の第１又は第２特徴構成において、
前記重ね合わされたラミネートフィルムには、注液口形
成用の切取り指標線又は注液口形成用の切り込みが形成
されている点にある。A third characteristic configuration of the liquid storage bag according to the present invention is the liquid storage bag according to the first or second characteristic configuration,
The laminated laminate film is characterized in that a cutout index line for forming a liquid inlet or a cut for forming a liquid inlet is formed.
【０００７】本発明による液体収納袋の第４特徴構成
は、前記液体収納袋の第２特徴構成において、前記非接
着状態にある両端部分の相対向面の一部が、前記液体供
給通路の一端側開口に液体を導く流動案内面に構成され
ている点にある。According to a fourth characteristic configuration of the liquid storage bag according to the present invention, in the second characteristic configuration of the liquid storage bag, a part of the opposing surfaces at both ends in the non-adhered state is formed at one end of the liquid supply passage. The point is that it is configured as a flow guide surface for guiding the liquid to the side opening.
【０００８】[0008]
【作用】本発明の液体収納袋の第１特徴構成によれば、
重ね合わされたラミネートフィルムの相対向面間に形成
された液体供給通路を通して液体収納空間内に液体を供
給することができるとともに、液体が収納された状態で
外部から圧力が加えられて、液体収納空間内の圧力が上
昇したとき、前記液体供給通路を挟んで相対向する部位
の各々の基材フィルム間に形成された非接着部分内の圧
力も高まり、この圧力によって、前記非接着部分より液
体供給通路側に位置するフィルム部分をもって構成され
る逆止弁膜同士が密着して液体供給通路が液密状態で閉
止されるから、液体収納空間内の液体が液体供給通路を
通して袋外へ洩れ出すことを防止することができる。According to the first aspect of the liquid storage bag of the present invention,
The liquid can be supplied into the liquid storage space through the liquid supply passage formed between the opposing surfaces of the laminated laminated films, and the liquid is stored in the liquid storage space by applying pressure from the outside while the liquid is stored. When the internal pressure increases, the pressure in the non-adhesive portion formed between the base films of the portions opposed to each other across the liquid supply passage also increases, and this pressure causes the liquid to be supplied from the non-adhesive portion. Since the check valve membranes having the film portions located on the passage side are in close contact with each other and the liquid supply passage is closed in a liquid-tight state, it is necessary to prevent the liquid in the liquid storage space from leaking out of the bag through the liquid supply passage. Can be prevented.
【０００９】本発明の液体収納袋の第２特徴構成によれ
ば、前記液体供給通路を通して液体収納空間内に液体を
供給する際、袋状に熱融着されたラミネートフィルムの
うち、非接着状態ある両端部分の取手用貫通孔にそれぞ
れ手指を掛けて、該両端部分を互いに離間方向に引張操
作すると、これら両端部分間に臨む液体供給通路の一端
側が大きく開かれるから、給液ホースや漏斗等を容易に
挿入することができるとともに、液体を直接落下供給す
る場合でも、落下供給される液体を液体供給通路の開口
に容易に導くことができる。According to a second characteristic configuration of the liquid storage bag of the present invention, when the liquid is supplied into the liquid storage space through the liquid supply passage, the non-adhesive state of the bag-shaped heat-sealed laminated film is selected. When a finger is put on each of the handle through holes at both ends and the ends are pulled in a direction away from each other, one end side of the liquid supply passage facing between the both ends is greatly opened, so that a liquid supply hose, a funnel, etc. Can be easily inserted, and even when the liquid is directly dropped and supplied, the liquid to be dropped and supplied can be easily guided to the opening of the liquid supply passage.
【００１０】本発明の液体収納袋の第３特徴構成によれ
ば、ラミネートフィルムに形成された切取り指標線に沿
ってハサミ等で切断するか、もしくは、切り込みで引き
破ることにより、収納液体を注出するための注液口を形
成することができる。According to the third characteristic configuration of the liquid storage bag of the present invention, the stored liquid is poured by cutting it with scissors or the like along the cutout index line formed on the laminate film, or by tearing the cutout. It is possible to form a liquid inlet for discharging.
【００１１】本発明の液体収納袋の第４特徴構成によれ
ば、前記液体供給通路を通して液体収納空間内に液体を
供給する際、非接着状態ある両端部分の取手用貫通孔に
それぞれ手指を掛けて、該両端部分を互いに離間方向に
引張操作すると、これら両端部分間に臨む液体供給通路
の一端側が大きく開かれ、しかも、互いに離間方向に引
張操作された両端部分の相対向面の一部には、液体を液
体供給通路の開口側に導く流動案内面が形成されている
から、落下供給される液体を溢れ出しの少ない状態で液
体供給通路の開口にスムースに流動案内することができ
る。According to the fourth characteristic configuration of the liquid storage bag of the present invention, when liquid is supplied into the liquid storage space through the liquid supply passage, fingers are respectively placed on handle through holes at both ends in a non-adhered state. When the two end portions are pulled apart from each other, one end of the liquid supply passage facing between the two end portions is greatly opened, and furthermore, a part of the opposing surfaces of the both end portions pulled apart from each other is opened. Since the flow guide surface for guiding the liquid to the opening side of the liquid supply passage is formed, the liquid that is dropped and supplied can flow smoothly to the opening of the liquid supply passage with little overflow.
【００１２】[0012]
【発明の効果】本発明の液体収納袋の第１特徴構成によ
れば、ラミネートフィルムを構成する柔軟な薄膜状のフ
ィルム間に、液体収納空間に連通する非接着部分を構成
して、当該非接着部分よりも液体供給通路側に位置する
フィルム部分同士を逆止弁膜に兼用構成してあるから、
従来のように、包装袋以外に合成樹脂製の逆止弁機能を
備えた柔軟な逆止弁体部を準備する必要がなく、しか
も、この逆止弁体部を重ね合わされたフィルム間に挿入
配置するための工程も不要であるため、洩れ出し防止効
果の高い液体収納袋を、製造コスト面で有利に製作する
ことができる。According to the first characteristic configuration of the liquid storage bag of the present invention, a non-adhesive portion communicating with the liquid storage space is formed between the flexible thin film films constituting the laminate film. Since the film portions located closer to the liquid supply passage than the adhesive portion are also configured as the check valve membrane,
Unlike the conventional case, there is no need to prepare a flexible check valve body having a check valve function made of a synthetic resin in addition to the packaging bag, and the check valve body is inserted between the stacked films. Since a disposing step is not required, a liquid storage bag having a high leakage prevention effect can be advantageously manufactured in terms of manufacturing cost.
【００１３】本発明の液体収納袋の第２特徴構成によれ
ば、前記液体収納袋の第１特徴構成による効果に加え、
前記液体供給通路を通しての液体供給作業を容易に行う
ことができる。According to the second aspect of the liquid storage bag of the present invention, in addition to the effects of the first aspect of the liquid storage bag,
The liquid supply operation through the liquid supply passage can be easily performed.
【００１４】本発明の液体収納袋の第３特徴構成によれ
ば、前記液体収納袋の第１又は第２特徴構成による効果
に加え、収納された液体を注出するための注液口を容易
に形成することができる。According to the third aspect of the liquid storage bag of the present invention, in addition to the effects of the first or second aspect of the liquid storage bag, a liquid inlet for discharging the stored liquid can be easily provided. Can be formed.
【００１５】本発明の液体収納袋の第４特徴構成によれ
ば、前記液体収納袋の第２特徴構成による効果に加え、
前記液体供給通路を通しての液体供給作業を液体の溢れ
落ちの少ない状態で更に容易に行うことができる。According to the fourth aspect of the liquid storage bag of the present invention, in addition to the effects of the second aspect of the liquid storage bag,
The liquid supply operation through the liquid supply passage can be more easily performed in a state where the liquid does not overflow.
【００１６】[0016]
〔第１実施例〕図１〜図６は、水等の液体を収納する液
体収納袋を示し、これは、２層に重ね合わされた柔軟な
薄膜状の合成樹脂製の基材フィルム１Ａ，１Ｂをナイロ
ンとポリエチレンから構成してある矩形状のラミネート
フィルム１、詳しくは、ドライラミネート法によって積
層されたナイロン製の基材フィルム１Ａとポリエチレン
製の基材フィルム１Ｂとを接着剤２で接合してなる矩形
状のラミネートフィルム１の二枚を、そのポリエチレン
製の基材フィルム１Ｂが内面側に位置する状態で重ね合
わせ、この重ね合わされた両ラミネートフィルム１を、
それらの上側部分１Ｃを除く他の部分の相対向内面間に
液体収納空間Ｓ及び当該液体収納空間Ｓに対して外部か
ら液体を供給するための液体供給通路３を現出する状態
で袋状に熱融着（図１の斜線Ｈ１で示す熱融着相当箇
所）してある。[First Embodiment] FIGS. 1 to 6 show a liquid storage bag for storing a liquid such as water, which is a flexible thin-film base resin film 1A, 1B laminated on two layers. Is formed by bonding an adhesive 2 to a rectangular laminate film 1 made of nylon and polyethylene, more specifically, a nylon base film 1A and a polyethylene base film 1B laminated by a dry lamination method. Are laminated in a state where the base film 1B made of polyethylene is located on the inner surface side.
A liquid storage space S and a liquid supply passage 3 for supplying a liquid to the liquid storage space S from outside are formed between the opposing inner surfaces of the other parts except the upper part 1C in a bag shape. Thermal fusion (a portion corresponding to thermal fusion indicated by oblique lines H1 in FIG. 1).
【００１７】そして、重ね合わされた両ラミネートフィ
ルム１のうち、前記液体供給通路３を挟んで相対向する
部位の各々の基材フィルム１Ａ，１Ｂの層間に、前記液
体収納空間Ｓに連通する非接着部分ａを形成して、当該
非接着部分ａよりも液体供給通路３側に位置するポリエ
チレン製の基材フィルム部分１ｂを、前記液体収納空間
Ｓの内圧が上昇したときに互いに密着して液体供給通路
３を液密状態で閉止する柔軟な薄膜状の逆止弁膜に構成
してある。Then, a non-adhesive portion communicating with the liquid storage space S is provided between the layers of the base films 1A and 1B at the portions opposed to each other across the liquid supply passage 3 in the two laminated films 1 superposed. A portion a is formed, and the polyethylene base film portion 1b located closer to the liquid supply passage 3 than the non-adhered portion a is brought into close contact with each other when the internal pressure of the liquid storage space S increases. The passage 3 is configured as a flexible thin film check valve membrane that closes in a liquid-tight manner.
【００１８】詳述すると、重ね合わされた両ラミネート
フィルム１のうち、前記上側部分１Ｃに対して液体供給
通路３の通路長さよりも少し小なる寸法Ｌで帯状に連な
る部位で、かつ、各ラミネートフィルム１を構成する両
基材フィルム１Ａ，１Ｂ間の各々には、前記接着剤２が
塗布されていない非接着部分ａを袋幅方向の全域にわた
る状態で形成し、この非接着部分ａよりも液体供給通路
３側に位置する各ポリエチレン製の基材フィルム１Ｂ部
分を、前記非接着部分ａの下端縁又はそれよりも少し上
方に平行に偏位した部位に沿って袋幅方向の全域にわた
って一直線状に切断するとともに、内面側に位置するポ
リエチレン製の基材フィルム１Ｂ同士、及び、該ポリエ
チレン製の基材フィルム１Ｂとそれに積層されているナ
イロン製の基材フィルム１Ａとを、前記液体収納空間Ｓ
及び液体供給通路３を区画形成する状態で約２００度の
加熱温度にて袋状に熱融着（図１の斜線Ｈ１で示す熱融
着相当箇所）することにより、前記非接着部分ａよりも
液体供給通路３側に位置する薄膜状の柔軟なポリエチレ
ン製の両基材フィルム部分１ｂを、前記液体収納空間Ｓ
の内圧が上昇したときに互いに密着して液体供給通路３
を液密状態で閉止する逆止弁膜に構成してある。前記ポ
リエチレン製の基材フィルム１Ｂの一部をもって構成さ
れる逆止弁膜１ｂ同士も、液体供給通路３を現出する状
態で熱融着されているため、図３に示すように、前記液
体収納空間Ｓ内へ液体を供給したとき、前記非接着部分
ａよりも外部側に位置するナイロン製の基材フィルム部
分１ｄは外方に膨出変形するが、両逆止弁膜１ｂ同士は
密着状態に維持され、収納液体の洩れ出しが防止されて
いる。また、この時、前記非接着部分ａを挟んで相対向
するナイロン製の基材フィルム部分１ｄとポリエチレン
製の基材フィルム部分１ｂとがほぼ下向きＶの字状に離
間している。In more detail, of the two laminated films 1 superposed, a portion connected to the upper portion 1C in a strip shape with a dimension L slightly smaller than the length of the liquid supply passage 3 and A non-adhesive part a to which the adhesive 2 is not applied is formed in the state between the two base films 1A and 1B constituting the base material 1 so as to cover the entire area in the bag width direction. The base film 1B made of polyethylene positioned on the supply passage 3 side is straightened over the entire region in the bag width direction along the lower end edge of the non-adhered portion a or a portion which is displaced parallel to and slightly above the lower edge. And the polyethylene base films 1B located on the inner surface side, and the polyethylene base film 1B and the nylon base film laminated thereon. And Lum 1A, the liquid storage space S
In addition, the liquid supply passage 3 is formed in a partitioned manner and heat-sealed in a bag shape at a heating temperature of about 200 degrees (a portion corresponding to the heat-sealing indicated by oblique lines H1 in FIG. 1), so that the non-adhered portion a The two thin film-shaped flexible base film portions 1b made of polyethylene positioned on the liquid supply passage 3 side are connected to the liquid storage space S
When the internal pressure of the liquid supply passage 3 rises,
Is a check valve membrane that closes in a liquid-tight state. Since the check valve membranes 1b formed by a part of the base film 1B made of polyethylene are also heat-sealed in a state where the liquid supply passages 3 are exposed, as shown in FIG. When the liquid is supplied into the space S, the nylon base film portion 1d located on the outer side of the non-adhesive portion a swells and deforms outward, but the two check valve films 1b are brought into close contact with each other. It is maintained and leakage of the stored liquid is prevented. At this time, the nylon base film portion 1d and the polyethylene base film portion 1b opposed to each other with the non-adhesive portion a interposed therebetween are separated in a substantially downward V-shape.
【００１９】そして、図３に示すように、前記液体収納
空間Ｓ内に水等の液体を収納した状態で袋外から圧力が
加えられて、液体収納空間Ｓ内の圧力が上昇したとき、
前記液体供給通路３を挟んで相対向する部位の各々の基
材フィルム１Ａ，１Ｂの層間に形成された非接着部分ａ
内の圧力も高まり、この圧力によって、前記非接着部分
ａよりも袋外側に位置する両ナイロン製基材フィルム１
Ａの各々は外方に膨出変形する一方、前記非接着部分ａ
よりも液体供給通路３側に位置する両ポリエチレン製基
材フィルム部分１ｂをもって構成される逆止弁膜の外面
（非接着部分ａの存在側の面）に圧力が加わるため、こ
れら両逆止弁膜１ｂ同士が液密状態で強く密着して液体
供給通路３が密閉され、液体収納空間Ｓ内の液体が液体
供給通路３を通して袋外へ洩れ出すことがない。As shown in FIG. 3, when a pressure is applied from the outside of the bag while a liquid such as water is stored in the liquid storage space S and the pressure in the liquid storage space S rises,
A non-adhesive portion a formed between the layers of the base films 1A and 1B at portions opposed to each other with the liquid supply passage 3 interposed therebetween.
The inside pressure also increases, and due to this pressure, both nylon base films 1 located outside the bag than the non-adhered portion a
A each swell outward and deform while the non-adhesive portion a
Pressure is applied to the outer surface (the surface on the side where the non-adhered portion a is present) of the check valve membrane composed of the two polyethylene base film portions 1b located closer to the liquid supply passage 3 side. The liquid supply passages 3 are tightly adhered to each other in a liquid-tight state, so that the liquid in the liquid storage space S does not leak out of the bag through the liquid supply passages 3.
【００２０】尚、図１においては、ナイロン製の基材フ
ィルム１Ａとポリエチレン製の基材フィルム１Ｂとのう
ち、前記帯状の非接着部分ａに対応するポリエチレン製
の基材フィルム部分を、ナイロン製の基材フィルム１Ａ
から離間した状態で記載しているが、これは、非接着部
分ａ及び切れ目ｂを理解し易くするためであって、実際
には、前述した如く、ナイロン製の基材フィルム１Ａと
ポリエチレン製の基材フィルム１Ｂとは、斜線Ｈ１で示
す部位において熱融着されている。In FIG. 1, of the nylon base film 1A and the polyethylene base film 1B, the polyethylene base film portion corresponding to the band-shaped non-adhesive portion a is made of nylon base film. Base film 1A
Although it is described in a state of being separated from the base film, this is to make the non-adhesion part a and the cut b easier to understand, and in fact, as described above, the nylon base film 1A and the polyethylene base film 1A The base film 1B is heat-sealed at a portion indicated by oblique lines H1.
【００２１】また、前記液体供給通路３に臨むポリエチ
レン製基材フィルム１Ｂのうち、液体供給通路３の幅方
向中央位置で、かつ、該液体供給通路３の長さよりも短
い部分同士を熱融着（図１の斜線Ｈ３で示す熱融着相当
箇所）してある。この熱融着によって液体供給通路３が
二つの通路部分に区画されるが、これら各通路部分の幅
は、図４及び図５の（ロ）に示すように、漏斗４の給液
案内筒部４ａや液体供給ホース等を挿入可能な幅に設定
してある。従って、給液時に、一方の通路部分に漏斗４
の給液案内筒部４ａや液体供給ホース等が挿入されてい
る状態では、他方の通路部分も少し開き状態となるた
め、当該通路部分が給液に伴って液体収納空間Ｓ内の空
気を外部に排出する排気通路として機能することにな
る。更に、前記液体供給通路３の幅方向中央位置での熱
融着により、該液体供給通路３を挟んで相対向する部位
のポリエチレン製基材フィルム部分１Ｂ同士の密着性が
高まり、液体供給通路３でのシール性能の向上を図るこ
とができる。更に、前記液体供給通路３は、その上方
（通路入口側）ほど通路幅が大となるテーパー状に構成
されている。In the polyethylene base film 1B facing the liquid supply passage 3, a portion at the center in the width direction of the liquid supply passage 3 and shorter than the length of the liquid supply passage 3 is heat-sealed. (Positions corresponding to heat fusion indicated by oblique lines H3 in FIG. 1). The liquid supply passage 3 is divided into two passage portions by this heat fusion, and the width of each passage portion is, as shown in FIG. 4 and FIG. 4a, a liquid supply hose, and the like are set to a width that can be inserted. Therefore, at the time of liquid supply, the funnel 4
When the liquid supply guide tube portion 4a, the liquid supply hose, and the like are inserted, the other passage portion is also slightly opened, so that the passage portion discharges air in the liquid storage space S with liquid supply. It will function as an exhaust passage for exhausting the air. Furthermore, due to the heat fusion at the center in the width direction of the liquid supply passage 3, the adhesion between the polyethylene base film portions 1B at the portions opposed to each other across the liquid supply passage 3 is increased, and the liquid supply passage 3 And the sealing performance can be improved. Further, the liquid supply passage 3 is formed in a tapered shape in which the passage width increases toward the upper side (passage entrance side).
【００２２】前記重ね合わされた両ラミネートフィルム
１の上側部分１Ｃの各々は、図１、図３、図４に示すよ
うに二つ折り状態で重ね合わされたのち、それらの各外
縁部分（図１の斜線Ｈ４で示す熱融着相当箇所）を熱融
着して接合し、更に、前記各上側部分１Ｃの袋幅方向中
央部にはそれぞれ取手用貫通孔５を形成するとともに、
各取手用貫通孔５の周縁部分を補強のために熱融着（図
１の斜線Ｈ５で示す熱融着相当箇所）してある。また、
前記両上側部分１Ｃの相対向面で、かつ、取手用貫通孔
５の下端縁と液体供給通路３の上側開口端との間に位置
する面部分を、両上側部分１Ｃを互いに離間操作した開
き状態での給液時に、漏斗４等を使用せずに落下供給さ
れる液体を液体供給通路３の上側開口に導く流動案内面
１ａに構成してある。前記取手用貫通孔５は、図６に示
すように、水等の液体を収納した液体収納袋をフック等
の突起体８に吊下げる場合の掛止孔として使用すること
ができる。また、図２、図５（ニ）、図６に示すよう
に、液体収納袋の幅方向両側縁の一方で、かつ、前記液
体収納空間Ｓ内の上部に相当する部位には、ハサミやナ
イフ等で注液口６を切取り形成するための切取り指標線
７が印刷されている。Each of the upper portions 1C of the two laminated films 1 is superposed in a folded state as shown in FIGS. 1, 3 and 4, and then the outer edges thereof (the hatched portions in FIG. 1). H4), which are heat-sealed and joined, and furthermore, through-holes 5 for handles are respectively formed at the center of each upper part 1C in the bag width direction,
The periphery of each handle through-hole 5 is heat-sealed for reinforcement (a portion corresponding to the heat-sealing indicated by oblique line H5 in FIG. 1). Also,
Opening the opposing surfaces of the upper portions 1C and the surface portion located between the lower edge of the handle through hole 5 and the upper opening end of the liquid supply passage 3 by separating the upper portions 1C from each other. When the liquid is supplied in the state, the liquid is supplied to the flow guide surface 1a for guiding the liquid dropped and supplied to the upper opening of the liquid supply passage 3 without using the funnel 4 or the like. As shown in FIG. 6, the handle through-hole 5 can be used as a hook hole when a liquid storage bag storing a liquid such as water is hung on a projection 8 such as a hook. As shown in FIGS. 2, 5 (d), and 6, scissors or knives are provided at one of the widthwise side edges of the liquid storage bag and at an upper portion in the liquid storage space S. For example, a cutout index line 7 for cutting out the liquid inlet 6 is printed.
【００２３】次に、前記ラミネートフィルム１をドライ
ラミネート法にて製造する場合の一例を説明する。図７
〜図９に示すように、第１ロール１０から繰り出された
ナイロン製基材フィルム１Ａをコーティング部Ａに導
き、タンク１１内の接着剤２に浸漬されたコーティング
ロール１２とゴムロール１３とによって、ナイロン製基
材フィルム１Ａの一側面に接着剤２を塗布する。この
時、前記コーティングロール１２の外周面で、かつ、前
記非接着部分ａに対応する部分には、前記排気通路４の
幅と同じ幅の環状溝１２ａが形成されていて、その環状
溝１２ａに対応する部分には接着剤２が転写されないよ
うに構成されている。また、第２ロール１４から繰り出
されたポリエチレン製基材フィルム１Ｂをカッティング
部Ｂに導き、回転カッタ１５によって前記非接着部分ａ
に対応する部分にスリット状の切り目ｂを切り込み形成
する。しかるのち、前記コーティング部Ａから乾燥炉１
６を経由して送られてくるナイロン製基材フィルム１Ａ
とカッティング部Ｂから送られてくるポリエチレン製基
材フィルム１Ｂとをラミネート部Ｃに導き、これら両基
材フィルム１Ａ，１Ｂを加熱金属ロール１７とゴムロー
ル１８とで貼り合わせたのち、冷却ロール１９で冷却
し、製造されたラミネートフィルム１を第３ロール２０
に巻き取る。前記接着剤２としては、ウレタン系樹脂、
酢酸ビニル系樹脂、天然ゴム等があり、有機溶剤に溶解
して使用する。Next, an example in which the laminated film 1 is manufactured by a dry laminating method will be described. FIG.
As shown in FIG. 9, the nylon base film 1 </ b> A unwound from the first roll 10 is guided to the coating part A, and the nylon base film 1 </ b> A is immersed in the adhesive 2 in the tank 11. The adhesive 2 is applied to one side of the base film 1A. At this time, an annular groove 12a having the same width as the width of the exhaust passage 4 is formed in the outer peripheral surface of the coating roll 12 and in a portion corresponding to the non-adhered portion a. It is configured such that the adhesive 2 is not transferred to the corresponding portion. In addition, the polyethylene base film 1B unwound from the second roll 14 is guided to the cutting portion B, and the non-adhesive portion a is rotated by the rotary cutter 15.
Is formed by cutting a slit-shaped cut b in a portion corresponding to. Thereafter, from the coating section A to the drying furnace 1
Nylon base film 1A sent through 6
And the polyethylene base film 1B sent from the cutting section B to the laminating section C. The base films 1A and 1B are bonded together by a heating metal roll 17 and a rubber roll 18 and then cooled by a cooling roll 19. After cooling, the manufactured laminated film 1 is rolled to the third roll 20.
To take up. As the adhesive 2, a urethane resin,
There are vinyl acetate resins, natural rubber, etc., which are used after being dissolved in an organic solvent.
【００２４】尚、当該製造方法では、ラミネートフィル
ム１の幅が一つの液体収納袋に相当する展開幅に設定さ
れているため、接着剤２が塗布されていない非接着部分
ａがフィルム幅方向の一箇所にだけ形成されることにな
るが、ラミネートフィルム１の幅が複数個の収納袋に相
当する展開幅を有する場合には、接着剤２が塗布されて
いない非接着部分ａがフィルム幅方向の複数箇所に形成
されることになる。また、当該第１実施例では、ナイロ
ンとポリエチレンとの２層構造から構成されたラミネー
トフィルム１を例に挙げて説明したが、この２層構造の
ものに限定されるものではなく、例えば、ポリプロピレ
ンと蒸着ポリエステルとポリエチレンとの３層構造、ナ
イロンと蒸着ポリエステルとポリエチレンとの３層構造
などがあり、使用目的等に応じて基材フィルムの積層枚
数と材質を適宜選定するとよい。In this manufacturing method, since the width of the laminate film 1 is set to the developed width corresponding to one liquid storage bag, the non-adhesive portion a to which the adhesive 2 is not applied is in the film width direction. However, when the width of the laminate film 1 has a development width corresponding to a plurality of storage bags, the non-adhesive portion a to which the adhesive 2 is not applied is in the film width direction. Are formed at a plurality of locations. In the first embodiment, the laminate film 1 having a two-layer structure of nylon and polyethylene has been described as an example. However, the present invention is not limited to the two-layer structure. There are a three-layer structure of nylon, vapor-deposited polyester and polyethylene, and a three-layer structure of nylon, vapor-deposited polyester and polyethylene, and the number of layers and the material of the base film may be appropriately selected according to the purpose of use.
【００２５】〔第２実施例〕図１０に示すように、重ね
合わされたラミネートフィルム１の相対向面間に形成さ
れる液体収納空間Ｓの底部側に、当該液体収納空間Ｓに
連通する排液通路２１を形成するべく、重ね合わされた
ラミネートフィルム１のうち、液体収納空間Ｓの底部近
くに位置する部分同士を、袋底辺と平行で、かつ、袋幅
方向の一側辺から袋幅よりも少し小なる寸法で熱融着
（図１０の斜線Ｈ２で示す熱融着相当箇所）するととも
に、前記排液通路２１の先端部に相当するラミネートフ
ィルム１の熱融着された角部には、排液通路２１に連通
する注液口を手指で切り裂き形成するためのほぼＶの字
状の切り込み（ノッチ）２２が形成されている。そし
て、液体収納空間Ｓ内の液体を注出するときには、前記
切り込み（ノッチ）２２でラミネートフィルム１の角部
を手指にて切り裂き、排液通路２０に連通する注液口を
形成する。また、非注出時には、排液通路２０の一部を
クリップ等の挾持部材で挾持して閉止することにより、
収納液体の洩れ出しを簡単に防止することができる。当
該実施例では、前記排液通路２１を、ラミネートフィル
ム１の熱融着工程時に同時に形成することができるばか
りでなく、排液通路２１を構成するための別の樹脂材料
が不要であるから、排液通路２１を能率良くかつコスト
面でも有利に形成することができる。また、前記排液通
路２１の形成位置は、液体収納空間Ｓの底部に限らず、
液体収納空間Ｓの周縁であれば、いずれの位置に形成し
てもよい。その他の構成は、上述の第１実施例と同一で
あり、当該第１実施例と同一の構成には同一の符号を付
与してそれの説明は省略する。[Second Embodiment] As shown in FIG. 10, a drain connected to the liquid storage space S is provided on the bottom side of the liquid storage space S formed between the opposing surfaces of the laminated laminated films 1. In order to form the passage 21, the portions of the laminated laminated films 1, which are located near the bottom of the liquid storage space S, are parallel to the bottom of the bag and from one side in the width direction of the bag. In addition to performing heat fusion at a slightly smaller size (a position corresponding to heat fusion indicated by oblique line H2 in FIG. 10), a heat-fused corner portion of the laminate film 1 corresponding to the tip of the drain passage 21 has: A substantially V-shaped notch (notch) 22 for tearing and forming a liquid injection port communicating with the drain passage 21 with a finger is formed. When the liquid in the liquid storage space S is to be poured out, the corners of the laminate film 1 are cut by the fingers at the cuts (notches) 22 to form a liquid injection port communicating with the drainage passage 20. Also, at the time of non-pouring, a part of the drainage passage 20 is closed and closed by a holding member such as a clip.
Leakage of the stored liquid can be easily prevented. In this embodiment, not only the drain passage 21 can be formed at the same time as the heat-sealing step of the laminate film 1, but another resin material for forming the drain passage 21 is not required. The drain passage 21 can be formed efficiently and cost-effectively. Further, the formation position of the drainage passage 21 is not limited to the bottom of the liquid storage space S,
As long as it is the peripheral edge of the liquid storage space S, it may be formed at any position. Other configurations are the same as those of the above-described first embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.
【００２６】〔第３実施例〕図１１、図１２に示すよう
に、一枚のラミネートフィルム１を、その長手方向の中
間部１ＤをＶの字状に折り込んだ状態で二つ折りにし、
この二つ折り状態で重ね合わされたラミネートフィルム
１を、それらの上側部分１Ｃを除く他の部分の相対向内
面間に液体収納空間Ｓ及び当該液体収納空間Ｓに対して
外部から液体を供給するための液体供給通路３を現出す
る状態で袋状に熱融着（図１の斜線Ｈ１で示す熱融着相
当箇所）してある。そして、袋状に熱融着された液体収
納袋の液体収納空間Ｓ内に水等の液体を供給した場合、
図１２に示すように、Ｖの字状に折り込まれたラミネー
トフィルム１の中間部１Ｄが袋載置面に沿って拡がり、
液体収納袋を安定状態で載置させることができる。ま
た、当該実施例においては、ラミネートフィルム１の中
間部１Ｄの四隅の各々に液体収納空間Ｓに連通する排液
通路２１を形成するべく、重ね合わされたラミネートフ
ィルム１のうち、中間部１Ｄの四隅近くに位置する部分
同士を、袋底辺と平行で、かつ、袋幅方向の一側辺から
袋幅よりも少し小なる寸法で熱融着（図１１の斜線Ｈ２
で示す熱融着相当箇所）するとともに、前記各排液通路
２１の先端部に相当するラミネートフィルム１の熱融着
された角部には、排液通路２１に連通する注液口を手指
で切り裂き形成するためのほぼＶの字状の切り込み（ノ
ッチ）２２が形成されている。当該実施例では、ミネー
トフィルム１の中間部１Ｄの四隅側にそれぞれ排液通路
２１と切り込み２２とを形成して、注液口の形成位置を
選択できるように構成したが、少なくとも一箇所に排液
通路２１と切り込み２２とを形成してあればよい。ま
た、前記排液通路２１の形成位置は、液体収納空間Ｓの
底部に限らず、液体収納空間Ｓの周縁であれば、いずれ
の位置に形成してもよい。その他の構成は、上述の第１
実施例と同一であり、当該第１実施例と同一の構成には
同一の符号を付与してそれの説明は省略する。[Third Embodiment] As shown in FIGS. 11 and 12, one laminated film 1 is folded in two with its longitudinal middle part 1D folded into a V-shape.
The two-folded laminated film 1 is used to supply a liquid from outside to the liquid storage space S and the liquid storage space S between the opposing inner surfaces of the other parts except the upper part 1C. In the state where the liquid supply passage 3 is exposed, the liquid supply passage 3 is heat-fused in a bag shape (a portion corresponding to the heat fusion indicated by oblique line H1 in FIG. 1). Then, when a liquid such as water is supplied into the liquid storage space S of the liquid storage bag thermally fused in a bag shape,
As shown in FIG. 12, the intermediate portion 1D of the laminated film 1 folded in a V shape spreads along the bag mounting surface,
The liquid storage bag can be placed in a stable state. In this embodiment, the four corners of the intermediate portion 1D of the laminated film 1 are formed so as to form a drain passage 21 communicating with the liquid storage space S at each of the four corners of the intermediate portion 1D of the laminate film 1. The portions located close to each other are heat-sealed with a dimension parallel to the bag bottom and slightly smaller than the bag width from one side in the bag width direction (the oblique line H2 in FIG. 11).
And a liquid injection port communicating with the drainage passage 21 is manually formed at a corner of the laminate film 1 where the heat fusion is performed, which corresponds to the tip of each of the drainage passages 21. A substantially V-shaped notch (notch) 22 for forming a tear is formed. In this embodiment, the drainage passages 21 and the cuts 22 are formed at the four corners of the intermediate portion 1D of the minate film 1 so that the formation position of the injection port can be selected. It suffices if the liquid passage 21 and the cut 22 are formed. Further, the formation position of the drainage passage 21 is not limited to the bottom of the liquid storage space S, and may be formed at any position as long as it is a peripheral edge of the liquid storage space S. Other configurations are the same as those described in the first embodiment.
The configuration is the same as that of the first embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
【００２７】〔その他の実施例〕 上述の第１実施例では、前記液体供給通路３の幅方
向中央位置を熱融着して、該液体供給通路３を幅方向で
二つの通路部分に区画形成したが、三つ以上の通路部分
に区画形成してもよく、また、区画形成される通路部分
の幅も任意に設定することができる。 上述の実施例では、前記液体供給通路３及び取手用
貫通孔５を袋幅方向の中央位置に形成したが、この液体
供給通路３及び取手用貫通孔５を袋幅方向の一側方に片
寄った位置に形成してもよい。 前述の第１実施例では、前記ラミネートフィルム１
をドライラミネート法にて製造したが、この製造方法に
限定されるものではなく、例えば、ウェットラミネート
法、エクストルージョンラミネート法、ホットメルトラ
ミネート法、コ・エクストルージョンラミネート法など
で製造してもよい。[Other Embodiments] In the above-described first embodiment, the liquid supply passage 3 is divided into two passage portions in the width direction by heat-sealing the central position of the liquid supply passage 3 in the width direction. However, three or more passage portions may be defined, and the width of the defined passage portion may be arbitrarily set. In the above embodiment, the liquid supply passage 3 and the through hole 5 for the handle are formed at the center position in the bag width direction. However, the liquid supply passage 3 and the through hole 5 for the handle are offset to one side in the bag width direction. May be formed at different positions. In the first embodiment, the laminated film 1
Was manufactured by a dry lamination method, but is not limited to this manufacturing method, and may be manufactured by, for example, a wet lamination method, an extrusion lamination method, a hot melt lamination method, a co-extrusion lamination method, or the like. .
【００２８】尚、特許請求の範囲の項に図面との対照を
便利にするために符号を記すが、該記入により本発明は
添付図面の構成に限定されるものではない。In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.
【図１】第１実施例を示す液体収納袋の熱融着前の分解
斜視図FIG. 1 is an exploded perspective view of a liquid storage bag according to a first embodiment before heat fusion.
【図２】熱融着された液体収納袋に液体を収納したとき
の一部切欠き正面図FIG. 2 is a partially cutaway front view when a liquid is stored in a heat-sealed liquid storage bag.
【図３】図２におけるＩＩＩ−ＩＩＩ線拡大断面図FIG. 3 is an enlarged sectional view taken along line III-III in FIG. 2;
【図４】給液時の要部の拡大断面図FIG. 4 is an enlarged sectional view of a main part at the time of liquid supply.
【図５】（イ）給液前の液体収納袋の斜視図 （ロ）給液状態を示す斜視図 （ハ）給液後の液体収納袋の斜視図 （ニ）注液状態を示す斜視図5A is a perspective view of the liquid storage bag before liquid supply; FIG. 5B is a perspective view showing a liquid supply state; FIG. 5C is a perspective view of the liquid storage bag after liquid supply;
【図６】給液後の液体収納袋の吊下げ掛止状態を示す斜
視図FIG. 6 is a perspective view showing a suspended state of the liquid storage bag after liquid supply.
【図７】ドライラミネート法による製造方法を示す概略
図FIG. 7 is a schematic view showing a manufacturing method by a dry lamination method.
【図８】コーティング部での接着剤塗布工程を示す斜視
図FIG. 8 is a perspective view showing an adhesive application step in a coating unit.
【図９】ラミネート部での貼り合せ工程を示す斜視図FIG. 9 is a perspective view showing a bonding process in a laminating unit.
【図１０】第２実施例の液体収納袋を示す一部切欠き正
面図FIG. 10 is a partially cutaway front view showing a liquid storage bag according to a second embodiment.
【図１１】第３実施例の液体収納袋を示す熱融着前の分
解斜視図FIG. 11 is an exploded perspective view showing a liquid storage bag according to a third embodiment before heat fusion.
【図１２】給液後の液体収納袋の載置状態を示す斜視図FIG. 12 is a perspective view showing a mounted state of a liquid storage bag after liquid supply.
Ｓ 液体収納空間 ａ 非接着部分 １ ラミネートフィルム １Ａ 基材フィルム １Ｂ 基材フィルム １Ｃ 端部分 １ａ 流動案内面 １ｂ 基材フィルム部分 ３ 液体供給通路 ５ 取手用貫通孔 ７ 切取り指標線 ２２ 切り込み S Liquid storage space a Non-adhesive part 1 Laminated film 1A Base film 1B Base film 1C End part 1a Flow guide surface 1b Base film part 3 Liquid supply passage 5 Handle through hole 7 Cut-out index line 22 Cut
Claims (4)
（１Ａ，１Ｂ）を層状に接合してなるラミネートフィル
ム（１）を重ね合せ、その重ね合わされたラミネートフ
ィルム（１）を、それのらの対向内面間に液体収納空間
（Ｓ）及び当該液体収納空間（Ｓ）に対して外部から液
体を供給するための液体供給通路（３）を現出する状態
で袋状に熱融着し、前記ラミネートフィルム（１）のう
ち、前記液体供給通路（３）を挟んで相対向する部位の
各々の基材フィルム（１Ａ，１Ｂ）間に、前記液体収納
空間（Ｓ）に連通する非接着部分（ａ）を形成して、前
記非接着部分（ａ）よりも液体供給通路（３）側に位置
する基材フィルム部分（１ｂ）を、前記液体収納空間
（Ｓ）の内圧が上昇したときに互いに密着して液体供給
通路（３）を液密状態で閉止する逆止弁膜に構成してあ
る液体収納袋。1. A laminated film (1) formed by joining a plurality of flexible synthetic resin base films (1A, 1B) in a layered form, and the laminated laminated film (1) is separated from the laminated film (1). The liquid storage space (S) and the liquid supply passage (3) for supplying the liquid from outside to the liquid storage space (S) between the opposing inner surfaces thereof are heat-fused in a bag shape. A non-adhesion between the base films (1A, 1B) of the laminate film (1) opposed to each other across the liquid supply passage (3) and communicating with the liquid storage space (S). When the internal pressure of the liquid storage space (S) rises by forming the portion (a) and moving the base film portion (1b) located closer to the liquid supply passage (3) than the non-adhesive portion (a) to Liquid supply passage (3) in a liquid-tight state Liquid storage bag that is configured in a check valve membrane that closes with.
（１）のうち、前記液体供給通路（３）が開口する側の
両端部分（１Ｃ）は、非接着状態で重ね合わされ、この
非接着状態の両端部分（１Ｃ）の相対向面間に、前記液
体供給通路（３）の一端側が開口させられているととも
に、前記両端部分（１Ｃ）の各々には取手用貫通孔
（５）が形成されている請求項１記載の液体収納袋。2. The two end portions (1C) of the laminated laminate film (1) on the side on which the liquid supply passage (3) is opened are superposed in a non-adhesive state, and both end portions in the non-adhesive state. One end of the liquid supply passage (3) is opened between the opposing surfaces of (1C), and a handle through hole (5) is formed in each of the two end portions (1C). Item 2. The liquid storage bag according to Item 1.
（１）には、注液口形成用の切取り指標線（７）又は注
液口形成用の切り込み（２２）が形成されている請求項
１又は２記載の液体収納袋。3. A cutout indicator line (7) for forming a liquid inlet or a cut (22) for forming a liquid inlet is formed in the laminated laminated film (1). A liquid storage bag as described.
の相対向面の一部が、前記液体供給通路（３）の一端側
開口に液体を導く流動案内面（１ａ）に構成されている
請求項２記載の液体収納袋。4. Both end portions (1C) in the non-adhered state.
3. The liquid storage bag according to claim 2, wherein a part of the opposing surfaces is formed as a flow guide surface (1a) for guiding the liquid to one end side opening of the liquid supply passage (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9087395A JP2644703B2 (en) | 1995-04-17 | 1995-04-17 | Liquid storage bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9087395A JP2644703B2 (en) | 1995-04-17 | 1995-04-17 | Liquid storage bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08282682A JPH08282682A (en) | 1996-10-29 |
| JP2644703B2 true JP2644703B2 (en) | 1997-08-25 |
Family
ID=14010627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9087395A Expired - Lifetime JP2644703B2 (en) | 1995-04-17 | 1995-04-17 | Liquid storage bag |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2644703B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4508541B2 (en) * | 2003-03-11 | 2010-07-21 | 大日本印刷株式会社 | Liquid bag |
| KR100853473B1 (en) * | 2007-02-20 | 2008-08-21 | 주식회사 롤팩 | Potable packing bag and method for manufacturing the same |
| KR102180125B1 (en) * | 2019-03-11 | 2020-11-17 | 이상현 | Paper bag for packing |
-
1995
- 1995-04-17 JP JP9087395A patent/JP2644703B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08282682A (en) | 1996-10-29 |
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