WO2001074675A1 - Bag-in-box inner bag - Google Patents

Bag-in-box inner bag Download PDF

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Publication number
WO2001074675A1
WO2001074675A1 PCT/JP2001/002357 JP0102357W WO0174675A1 WO 2001074675 A1 WO2001074675 A1 WO 2001074675A1 JP 0102357 W JP0102357 W JP 0102357W WO 0174675 A1 WO0174675 A1 WO 0174675A1
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WO
WIPO (PCT)
Prior art keywords
bag
film
box
inner bag
fusion
Prior art date
Application number
PCT/JP2001/002357
Other languages
French (fr)
Japanese (ja)
Inventor
Michinori Yoneyama
Makoto Ichikawa
Original Assignee
Fujimori Kogyo Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujimori Kogyo Co., Ltd. filed Critical Fujimori Kogyo Co., Ltd.
Priority to AU2001242773A priority Critical patent/AU2001242773A1/en
Priority to EP01915738A priority patent/EP1277667A4/en
Publication of WO2001074675A1 publication Critical patent/WO2001074675A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers
    • B65D77/062—Flexible containers disposed within polygonal containers formed by folding a carton blank
    • B65D77/065—Spouts, pouring necks or discharging tubes fixed to or integral with the flexible container
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/008—Standing pouches, i.e. "Standbeutel"

Definitions

  • the present invention generally comprises an inner bag made of a synthetic resin film for the purpose of filling, storing and transporting a liquid by fusing a synthetic resin film, and an outer box such as a cardboard.
  • an outer box such as a cardboard.
  • an inner bag made by fusing a synthetic resin film for filling, storing and transporting liquid into a bag shape, and an outer box made of cardboard, etc., in general.
  • the inner bag made of ordinary synthetic resin film has a square flat bag shape with four sides sealed, and the filled inner bag can be used without an outer box. It is very inconvenient when handling because it has no independence and has no handle. Also, when discharging the contents of this flat bag-shaped inner bag, especially when the contents are set in the outer box and discharged, the contents are placed between the films at the corners of the bag. The disadvantage is that it tends to remain. For this reason, some bag-in-box users have found that the container is self-contained using only the inner bag, has good handleability, and has little residual liquid in the contents. Is required.
  • the filled bag has a shape that is more bulged at the body than at the bottom, and has a higher center of gravity and self-reliance. Insufficient. Also, discharge the contents without an outer box In such cases, it is difficult to work without holding the container with one hand, so the gusset-shaped inner bag is not easy to hold when the upper folded part is grasped. Disclosure of the invention
  • the present invention has been made in order to solve the above-mentioned problems, and is excellent in the inner bag when the filled bag bag box is handled without an outer box. In addition, both self-reliance and practical strength are achieved, and there is little residual liquid at the time of liquid discharge, and the container is easy to hold.It is excellent in handleability, convenience, and strength of the container. The aim is to get bag-in-box inner bags.
  • the inner bag according to the present invention comprises a front film having a spout, a rear film, and a bottom film folded between the above two types of films.
  • This is a bag-in-box inner bag made of a self-contained bag in which the above-mentioned and the bag-in box are fused, and the bag-in-box inner bag is separated from the storage portion by a fusion portion at the upper portion. It is a knock-in box inner bag characterized by having a corner portion.
  • FIG. 1 shows an embodiment of a bag-in-box inner bag of the present invention, and is a plan view showing a state in which the inner bag is folded.
  • FIG. 2 shows another embodiment of the bag-in-box inner bag of the present invention, and is a plan view showing a state where the inner bag is folded.
  • FIG. 3 shows another embodiment of the bag bag of the present invention.
  • FIG. 3 is a plan view showing an example, in which an inner bag is folded.
  • FIG. 4 is a cross-sectional view taken along the line AA ′ of the inner bag of FIG.
  • FIG. 5 shows a state in which the inner bag of the dog box of FIG. 1 is filled with the liquid of the contents without an outer box.
  • Fig. 6 shows a state in which the bag bag inner bag of Fig. 1 filled with the contents liquid is removed from the outer box and the contents are discharged.
  • FIG. 7 shows another embodiment of the present invention.
  • FIG. 8 shows another embodiment of the present invention.
  • FIG. 9 shows another embodiment of the present invention.
  • FIG. 10 is a perspective view showing a state in which the contents are discharged while being set in the outer box.
  • FIG. 11 is a folded plan view of a conventional gusset-shaped inner bag of a noggin box.
  • FIG. 12 shows an example of a bag-in-box inner bag of a conventional gusset bag shape filled.
  • the inner bag of the present invention has a bottom film folded inward between two types of films, a front film and a rear film, as described above. It has a shape called a so-called standing patch that is inserted and its side edges are fused, and it is flat and does not take up space when it is folded empty. When the contents are filled with liquid, the bottom film opens, resulting in an excellent self-supporting inner bag. Come.
  • the inner bag is turned upside down by providing a fusion section at an angle from the side edge toward the upper edge, separating the storage section and providing a part of the corner.
  • the liquid is drained, the remaining liquid at the top of the inner bag can be eliminated.
  • the hole functions as a handle, and the filled inner bag can be brought in without an outer box, or the contents can be discharged. It is preferable because it is easy to hold at the same time and handling is extremely good.
  • the perimeter of the hole may or may not be fused, but if not fused, the strength is improved and the action as a handle can be more reliably performed. The load on the fingers is also reduced.
  • a separate handle may be provided above the upper fusion portion.
  • the bottom film of the inner bag of the present invention is rectangular or square. There is a so-called square bottom bag type with a main line seal and a diagonally welded portion. If the inner bag is a square bottom bag, the contents are filled and placed in the outer box If so, it is preferable because it can be stabilized.
  • the lower part of the inner bag of the present invention has the bottom film folded inward between the front and rear films and the periphery thereof is fused, but the bottom film is folded. It is preferable that the welding is performed obliquely from the intersection of the seam and the front or rear film or from near the lower side of the intersection to an appropriate position on the bottom fusion part of the inner bag.
  • the bottom film of the inner bag of the nozzle box according to the present invention is made of, for example, a co-extruded film or a co-extruded film of a polyamide resin and a polyolefin resin.
  • a resin layer that is difficult to be heat-sealed is laminated on the surface, such as a laminate of a polyolefin resin layer on the axially stretched film, the obliquely fused part Notched by a method such as forming a hole in the bottom film at a position corresponding to the side edge fusion surface at a position below the intersection near the intersection with the side edge fusion part
  • a method such as forming a hole in the bottom film at a position corresponding to the side edge fusion surface at a position below the intersection near the intersection with the side edge fusion part
  • the bottom film opens to form the bottom of the bag three-dimensionally, giving the filled bag excellent autonomy and the oblique fusion.
  • a laminate film having a base film as a base film such as a biaxially stretched film, can be used as a bottom film. Even when a film is used, since the front and rear films at a position below the intersection of the oblique fusion portion and the side edge fusion portion are fused, the bag is used. To prevent the bottom film from opening when internal pressure is applied to the bottom film, and to prevent the bottom film from opening at the intersection between the fold of the bottom film and the side edge fusion part. By reducing the loss, the practical strength against impacts such as falling can be increased.
  • the inner bag In addition to improving the self-sustainability by giving shape retention to the bag, it also prevents the bottom film from opening when internal pressure is applied to the bag and increases the effect, resulting in a fall, etc. It is possible to further enhance the practical strength against the impact of the steel.
  • the bottom film of the bag can be easily opened when filling the contents, Filling can be made easier.However, if this part is cut off, the self-sustainability and drop strength of the bag will be in the negative direction, so An appropriate selection must be made according to the material composition and the required function level. If the bottom film of the inner bag is a laminate in which the resin layer that is difficult to be heat-sealed is formed as a surface layer, the oblique fusion portion and the side edge fusion portion are formed. It is preferable to cut off the lower corner, leaving the part where the front and rear surfaces are fused near the lower part of the intersection with the intersection.
  • a polyolefin film such as polyethylene or polypropylene may be used alone.
  • a laminated film is also used.
  • the laminating film is a resin layer with a polyolefin-based heat-adhesive property such as polyethylene or polypropylene (CPP) in the inner layer.
  • Laminate film consisting of relatively high mechanical strength such as biaxially stretched polyamide, biaxially stretched polyester, biaxially stretched polypropylene, etc. Certain films are used as base materials, and for example, moisture-proof properties are required to add necessary performance to these base materials.
  • multi-layers such as laminated layers of silica-deposited film or ethylene-vinyl alcohol copolymer are used. If light-shielding properties are required, aluminum foil or aluminum-deposited films are laminated.
  • the film is selected appropriately according to its use.
  • the multilayer film include, for example, a laminate film of aluminum foil and polyethylene, an ethylene-vinyl alcohol copolymer (EVOH) and a polyethylene film.
  • EVOH ethylene-vinyl alcohol copolymer
  • a double film obtained by laminating these films and a single film of polyethylene without bonding them is used as appropriate, but is not limited to these. It is not something.
  • FIG. 1 to FIG. 4 show an embodiment of a bag bag box inner bag of the present invention, and are plan views showing a state where the inner bag is folded.
  • FIG. 4 is a cross-sectional view taken along line AA ′ of the inner bag shown in FIG.
  • 1 is an inner bag
  • 2 is an upper fusion part
  • 3 is a bottom fusion part
  • 4 is a folded bottom film
  • 5, 5 ' is a through hole opened in the bottom film before fusion
  • 6 is a front film of the bag
  • 7 is a rear film
  • 8 is a side edge fusion part
  • 9 is a diagonal bottom.
  • the fused portion, 10 is the upper oblique fused portion.
  • Reference numeral 14 denotes a mouthpiece for discharging the contents.
  • a handle hole 15 is formed outside the upper oblique fusion portion 10.
  • FIG. 5 shows a state in which the inner bag of the nodding box of FIG. 3 is filled with the liquid of the contents without an outer box.
  • the bottom film expands to form the bottom of the container, and the entire bag expands to the bottom, so the center of gravity is lowered and excellent self-sustainability is obtained. Is received.
  • Fig. 6 shows a state in which the bag inside the bag box of Fig. 3 filled with liquid is taken out of the outer box and the contents are discharged. Easy handling by folding the top of the bag in two, overlapping the top handle holes with one hand and grasping one corner of the bottom with the other hand It is shown that .
  • FIG. 7 shows another embodiment of the present invention, in which the bottom corner is cut off except for the portion where the front and rear films are fused. Have been taken.
  • FIGS. 8 and 9 show another embodiment of the present invention, in which a handle 16 is formed above the upper fusion portion 2.
  • FIG. 10 is a perspective view showing a state in which the contents are discharged while being set in the outer box.
  • FIG. 11 is a perspective view showing an example of a conventional gusset-shaped inner bag
  • FIG. 12 is a perspective view of a conventional gusset-shaped inner bag. This is an example of a bag-shaped bag in a bag-shaped inner bag.
  • the inner bag of the boxing box is formed by folding the film serving as the bottom surface between the front and rear films at the bottom of the bag. At the intersection of the bottom film and the front and back films where the front and rear films are fused. , Or from the vicinity of the lower side of the intersection to the appropriate position of the bottom fusion of the bag, and fuse it obliquely.
  • the oblique fusing that connects the upper fusing part and the side fusing part of the bag is provided at both corners of the upper part of the bag, so that the inner bag is turned upside down and the T liquid is discharged. Liquid in the upper corner of the inner bag o
  • a hole is formed in the bottom film near the intersection of the oblique fusion at the lower part of the bag and the side fusion part to perform the side margin fusion, and the front and rear fusion parts are formed.

Abstract

A bag-in-box inner bag which has compatibility established therein between excellent self-standability and practical strength when the inner box is to be handled without an outer box and which allows less liquid to remain during liquid discharge and makes it easy to hold vessels and is superior in vessel handleability and handiness and which is rugged. This bag-in-box is a bag-in-box inner bag in the form of a self-standing bag comprising a front film having a charging/discharging port, a rear film and a bottom film inserted between these two films, the three films being joined by fusion, characterized in that the bag-in-box inner bag has a corner portion in the upper region separated from the storing section by the fused portion.

Description

明細書 ノ ' ヅ グイ ンボ ッ ク ス 内袋 技術分野  Specification No. ヅ Guimbox Inner Bag Technical Field
本発明は、 液体を充填、 保管、 輸送する こ と を 目 的 と する 合成樹脂製の フ ィ ルム を融着 して袋状に した 内袋と段ボール 等の外箱か ら な る、 一般にノ ヅ グィ ンボ ッ ク ス と呼ばれる液 体容器の使い勝手の向上に関 し、 さ ら に詳述すれば、 液体が 充填された内袋を外箱無 しで取 り 扱う 場合の内袋の優れた 自 立性 と強度の両立、 ま た、 内容品を排出する 際の容器内の残 液の減少、 ま た、 液体が充填さ れた内袋の持ちやすさ の 向上 に関する も のであ る 。 背景技術  The present invention generally comprises an inner bag made of a synthetic resin film for the purpose of filling, storing and transporting a liquid by fusing a synthetic resin film, and an outer box such as a cardboard.向上 To improve the usability of a liquid container called a gin box, more specifically, an excellent inner bag is used when handling an inner bag filled with liquid without an outer box. It relates to compatibility between independence and strength, reduction of residual liquid in the container when discharging contents, and improvement of the ease of holding the inner bag filled with liquid. Background art
従来よ り 、 液体を充填、 保管、 輸送する こ と を 目 的 と する 合成樹脂製の フ ィ ルム を融着 して袋状に し た 内袋と段ボール 等の外箱か ら な る、 一般にノ ッ グイ ンボ ッ ク ス と呼ばれる 5 1 か ら 2 0 1 程度の液体容器が食品や薬品用の容器と して広 く 使用 さ れて い る 。 こ れ ら の容器は主に業務用 と して使用さ れ、 食品や、 薬品の原料容器や小分け用の大型容器 と して使 用 されて い る が、 近年、 食品や薬品の製造現場の衛生管理の 徹底か ら 、 充填品の外箱か ら 内袋のみを取 り 出 して製造現場 に持込み、 外箱に よ る現場の汚染を防 ぐ必要があ る場合が多 く な つ て きて い る 。 Conventionally, it consists of an inner bag made by fusing a synthetic resin film for filling, storing and transporting liquid into a bag shape, and an outer box made of cardboard, etc., in general. About 51 to 201 liquid containers, called knock-in boxes, are widely used as food and medicine containers. These containers are mainly used for business purposes, and are used as raw material containers for foods and chemicals and as large containers for subdivisions. Due to thorough hygiene management, it is often necessary to remove only the inner bag from the outer box of the packed product and bring it to the manufacturing site to prevent contamination of the site by the outer box. It's getting worse.
しか しなが ら、 通常の合成樹脂製の フ ィ ルム を袋に し た内 袋は、 四辺を シール した四角い平袋状の形状であ り 、 充填さ れた内袋を外箱無 しで取 り 扱う 際には 自立性が全 く 無 く 、 ま た、 把手 とな る部分も ないため、 非常に使い勝手が悪い。 ま た、 こ の平袋形状の内袋は内容品を排出する場合、 特に外箱 にセ ッ 卜 した状態で排出 した場合、 袋の隅の フ ィ ルム と フ ィ ルムの間 に内容品が残 り やすい とい う 欠点があ る。 こ のため バ ヅ グイ ンボ ッ ク ス のユーザ一か ら は内袋のみでの容器の 自 立性があ り 、 取扱い性が良 く て、 内容品の残液の少ないノ ッ グイ ン ボ ッ ク スが求め ら れて い る 。  However, the inner bag made of ordinary synthetic resin film has a square flat bag shape with four sides sealed, and the filled inner bag can be used without an outer box. It is very inconvenient when handling because it has no independence and has no handle. Also, when discharging the contents of this flat bag-shaped inner bag, especially when the contents are set in the outer box and discharged, the contents are placed between the films at the corners of the bag. The disadvantage is that it tends to remain. For this reason, some bag-in-box users have found that the container is self-contained using only the inner bag, has good handleability, and has little residual liquid in the contents. Is required.
自 立性に関 して は、 ブ ロ ー成形や真空成形等で成形 し た保 形性のあ る成形容器のバ ッ グィ ンボ ッ ク スの内容器を使用す る こ と も 考え ら れる が、 最近の廃棄物削減問題やコ ス ト の点 か ら 、 廃棄性に優れ、 且つ安価な フ ィ ルム製袋品のバ ッ グィ ンボ ッ ク ス 内袋が求め ら れて い る 。 ま た、 実開昭 6 4 — 9 1 7 4 にあ る よ う なガゼ ッ ト形状の内袋は、 外箱か ら取 り 出 し て使 う 場合、 あ る程度容器の 自 立性があ り 、 ま た、 実開平 2 一 8 7 3 6 に示さ れて い る よ う に、 こ のガゼ ヅ ト形状の内袋 は上部の折 り 込み部分を把手 と する こ と がで きて、 平袋よ り は好ま しい形態であ る （図 1 1 、 図 1 2 参照） 。  Regarding self-sufficiency, it is conceivable to use a bag-in-box inner container of a shape-retaining container molded by blow molding or vacuum molding. However, due to recent waste reduction problems and cost considerations, there is a demand for inexpensive bag-in-bags made of film that are excellent in disposability and inexpensive. In addition, the gusset-shaped inner bag such as that shown in Japanese Utility Model Application Laid-Open No. 6-9-1744 has a certain degree of independence of the container when taken out of the outer box. Yes, and as shown in Japanese Utility Model Application Laid-Open No. 287736, this gazette-shaped inner bag can be used as a handle at the upper fold. This is the preferred form over flat bags (see Figures 11 and 12).
しか しなが ら、 こ の ガゼ ッ ト 形状であ っ て も、 充填さ れた 袋は底部 よ り も胴部が膨 ら んだ形状 と な り 、 重心が高 く な り 自 立性が不十分で あ る 。 ま た、 外箱無 しで、 内容品を排出す る 場合は、 容器を片手で持たなければ作業が し に く いので、 ガゼ ッ ト形状の内袋は上部の折 り 込み部分を把手に した場合、 持ちやすさ において不十分で あ る 。 発明の開示 However, even with this gusset shape, the filled bag has a shape that is more bulged at the body than at the bottom, and has a higher center of gravity and self-reliance. Insufficient. Also, discharge the contents without an outer box In such cases, it is difficult to work without holding the container with one hand, so the gusset-shaped inner bag is not easy to hold when the upper folded part is grasped. Disclosure of the invention
本発明は、 上記の よ う な問題点を解決する ためになさ れた も ので、 充填済のバ ッ グィ ンボ ッ ク スの内袋を外箱無 しで取 り 扱う 場合の内袋に優れた 自 立性 と実用強度を両立さ せ、 ま た、 液体の排出時の残液も 少な く 、 且つ、 容器を持ちやす く し、 容器の取扱い性、 利便性に優れ、 且つ、 強度も 強いバ ッ グイ ンボ ッ ク ス 内袋を得る こ と を 目 的 と して い る 。  The present invention has been made in order to solve the above-mentioned problems, and is excellent in the inner bag when the filled bag bag box is handled without an outer box. In addition, both self-reliance and practical strength are achieved, and there is little residual liquid at the time of liquid discharge, and the container is easy to hold.It is excellent in handleability, convenience, and strength of the container. The aim is to get bag-in-box inner bags.
本発明に よ るノ、' ッ グイ ンボ ッ ク ス 内袋は、 注出口 を有する 前面フ ィ ルム、 後面フ ィ ルム及び前記 2 種類の フ ィ ルムの間 に折 り 込まれる底面フ ィ ルム と を融着 した 自立袋よ り な る バ ッ グイ ンボ ッ ク ス 内袋であ っ て、 上記バ ヅ グイ ンボ ッ ク ス内 袋が上部に融着部にて収納部 よ り 区切 ら れた コ ーナー部を有 す る こ と を特徴と する ノ ッ グイ ンボ ッ ク ス 内袋であ る 。 図面の簡単な説明  The inner bag according to the present invention comprises a front film having a spout, a rear film, and a bottom film folded between the above two types of films. This is a bag-in-box inner bag made of a self-contained bag in which the above-mentioned and the bag-in box are fused, and the bag-in-box inner bag is separated from the storage portion by a fusion portion at the upper portion. It is a knock-in box inner bag characterized by having a corner portion. BRIEF DESCRIPTION OF THE FIGURES
第 1 図は、 本発明のバ ッ グイ ンボ ッ ク ス 内袋の実施例 を示 す も ので内袋を折 り 畳んだ状態の平面図であ る 。  FIG. 1 shows an embodiment of a bag-in-box inner bag of the present invention, and is a plan view showing a state in which the inner bag is folded.
第 2 図は、 本発明のバ ッ グイ ンボ ッ ク ス 内袋の他の一実施 例 を示すも ので内袋を折 り 畳んだ状態の平面図であ る 。  FIG. 2 shows another embodiment of the bag-in-box inner bag of the present invention, and is a plan view showing a state where the inner bag is folded.
第 3 図は、 本発明のバ ッ グィ ン ボ ッ ク ス 内袋の他の一実施 例を示すも ので内袋を折 り 畳んだ状態の平面図であ る 。 FIG. 3 shows another embodiment of the bag bag of the present invention. FIG. 3 is a plan view showing an example, in which an inner bag is folded.
第 4 図は、 図 3 の内袋の A— A ' の断面図であ る 。  FIG. 4 is a cross-sectional view taken along the line AA ′ of the inner bag of FIG.
第 5 図は、 図 1 のノ、" ッ グイ ンボ ッ ク ス 内袋に外箱無 しで内 容品の液体が充填さ れた状態を示 した も のであ る。  FIG. 5 shows a state in which the inner bag of the dog box of FIG. 1 is filled with the liquid of the contents without an outer box.
第 6 図は、 内容品液体が充填さ れた図 1 のバ ッ グイ ンポ ッ ク ス 内袋を外箱か ら取 り 出 して 内容品を排出 して い る状態 であ る 。  Fig. 6 shows a state in which the bag bag inner bag of Fig. 1 filled with the contents liquid is removed from the outer box and the contents are discharged.
第 7 図は、 本発明の他の一実施例であ る。  FIG. 7 shows another embodiment of the present invention.
第 8 図は、 本発明の他の一実施例であ る。  FIG. 8 shows another embodiment of the present invention.
第 9 図は、 本発明の他の一実施例であ る 。  FIG. 9 shows another embodiment of the present invention.
第 1 0 図は、 外箱にセ ッ ト した ま ま 内容品を排出 して い る 状態の透視図であ る 。  FIG. 10 is a perspective view showing a state in which the contents are discharged while being set in the outer box.
第 1 1 図は、 従来のガゼ ッ ト 形状のノ ッ グィ ンボ ッ ク ス 内 袋の折 り 畳んだ平面図であ る 。  FIG. 11 is a folded plan view of a conventional gusset-shaped inner bag of a noggin box.
第 1 2 図は、 充填さ れた従来のガゼ ッ ト 袋形状のバ ッ グィ ンボ ッ ク ス 内袋の例 を示すも のであ る 。 発明を実施する た めの最良の形態  FIG. 12 shows an example of a bag-in-box inner bag of a conventional gusset bag shape filled. BEST MODE FOR CARRYING OUT THE INVENTION
即ち、 本発明の内袋は、 上記の よ う に前面 フ ィ ル ム と後面 フ ィ ルム との 2 種類の フ ィ ルム の間に内方に折 り 込ま れた底 面フ ィ ル ム を挿入 し、 そ の側縁部を融着 した所謂ス タ ンデ ィ ン グパ ゥ チ と称さ れる形状を してお り 、 折 り 畳んだ空袋の状 態では扁平で場所を と ら ないが内容品の液体を充填する と底 面フ ィ ルムが開いて優れた 自 立性のあ る 内袋 と する こ と が出 来る 。 That is, the inner bag of the present invention has a bottom film folded inward between two types of films, a front film and a rear film, as described above. It has a shape called a so-called standing patch that is inserted and its side edges are fused, and it is flat and does not take up space when it is folded empty. When the contents are filled with liquid, the bottom film opens, resulting in an excellent self-supporting inner bag. Come.
更に、 側縁部 よ り 上縁部に向か っ て斜めに融着部を設けて 収納部を 区切 っ て コ ーナ一部を設け る こ と に よ って、 内袋を 逆さ ま に して液体を排出 した場合、 内袋の上部の残液を無に する こ と が出来る 。 そ して、 こ のコ ーナ一部に孔を設ける と 該孔は把手用 と して機能 し、 充填済みの内袋を外箱無 し に持 ち込んだ り 、 内容品を排出 した り す る 時に持ち やす く 、 取扱 が極めて良好にな る ので好ま しい。 そ して、 孔の周囲は融着 して も 、 しな く て も よ いが、 融着 しない方が強度が向上 し把 手 と しての作用 を よ り 確実にする こ と が出来、 手指への負荷 も 小さ く な る 。  Furthermore, the inner bag is turned upside down by providing a fusion section at an angle from the side edge toward the upper edge, separating the storage section and providing a part of the corner. When the liquid is drained, the remaining liquid at the top of the inner bag can be eliminated. If a hole is made in a part of this corner, the hole functions as a handle, and the filled inner bag can be brought in without an outer box, or the contents can be discharged. It is preferable because it is easy to hold at the same time and handling is extremely good. The perimeter of the hole may or may not be fused, but if not fused, the strength is improved and the action as a handle can be more reliably performed. The load on the fingers is also reduced.
ま た、 コ ーナ一部に孔を設け る代わ り に上部融着部の上側 に別途把手部を設けて も 良い。  Further, instead of providing a hole in a part of the corner, a separate handle may be provided above the upper fusion portion.
本発明の内袋の底面 フ ィ ルム は長方形ま た は正方形と し、 内袋の形式 と して は、 底シール形状が R がついてい る ド ィ パ ッ ク （登録商標） 形式や底一本線シール及びそれと斜めの融 着部が付いて い る所謂角底袋形式な どがあ り 、 なかで も 内袋 を角底袋 と す る と、 内容物を充填 し外箱内に載置 し た場合、 安定する こ と が出来る ので好ま しい。 ま た'、 本発明の内袋の 下部は前面 と後面フ ィ ルム との間に底面 フ ィ ルムを 内側 に折 り 込んでその周囲を融着 して あ る が、 底面フ ィ ルム の折 り 目 と前面ま たは後面 フ ィ ルム と の交点ま た は交点の下側近傍か ら 内袋の底辺融着部の適宜の位置ま で斜めに融着す る こ とが 好ま しい。 そ して、 本発明に よ る ノ ヅ グイ ンボ ッ ク ス 内袋の底面 フ ィ ルムが例えばポ リ ア ミ ド樹脂 と ポ リ オ レ フ イ ン樹脂 との共押 出フ ィ ルムや二軸延伸フ ィ ルム にポ リ オ レ フ イ ン樹脂層 を ラ ミ ネ一 ト した も のな どの表面に熱融着さ れ難い樹脂層が積層 されて い る場合はその斜め融着部と側縁融着部 との交点の近 傍の該交点よ り 下側の位置の側縁融着面に該当 する位置の底 面フ ィ ル ム に孔を設け る な どの方法で切 り 欠いて側縁融着部 の融着を行な う こ と に よ り 、 そ の位置の前面 と後面のフ ィ ル ム を融着さ せた構造にす る こ と がで き、 これに よ り 、 内容品 を充填する と底面 フ ィ ル ム が開いて袋の底面を立体的に形成 して、 充填済の袋に優れた 自 立性を与え、 ま た、 前記斜め融 着部に よ り 、 液体の排出時に袋の底部の隅の フ イ ルム間の残 液を無 く すこ と がで き る 。 The bottom film of the inner bag of the present invention is rectangular or square. There is a so-called square bottom bag type with a main line seal and a diagonally welded portion.If the inner bag is a square bottom bag, the contents are filled and placed in the outer box If so, it is preferable because it can be stabilized. In addition, the lower part of the inner bag of the present invention has the bottom film folded inward between the front and rear films and the periphery thereof is fused, but the bottom film is folded. It is preferable that the welding is performed obliquely from the intersection of the seam and the front or rear film or from near the lower side of the intersection to an appropriate position on the bottom fusion part of the inner bag. Then, the bottom film of the inner bag of the nozzle box according to the present invention is made of, for example, a co-extruded film or a co-extruded film of a polyamide resin and a polyolefin resin. When a resin layer that is difficult to be heat-sealed is laminated on the surface, such as a laminate of a polyolefin resin layer on the axially stretched film, the obliquely fused part Notched by a method such as forming a hole in the bottom film at a position corresponding to the side edge fusion surface at a position below the intersection near the intersection with the side edge fusion part By fusing the side edge fusion parts, it is possible to form a structure in which the front and rear films at that position are fused. When the contents are filled, the bottom film opens to form the bottom of the bag three-dimensionally, giving the filled bag excellent autonomy and the oblique fusion. Depending on the part, it is possible to eliminate the residual liquid between the films at the bottom corner of the bag when discharging the liquid.
ま た、 こ の よ う に構成する こ と に よ っ て底面フ ィ ルム と し て二軸延伸 フ イ ルム な どの延びに く ぃ フ イ ルム を基材と する ラ ミ ネー ト フ ィ ル ム を使用す る場合であ っ て も 前記斜め融着 部 と側縁融着部 と の交点よ り 下側の位置の前面 と後面の フ ィ ルムが融着さ れて い る ので、 袋に内圧がかか っ た場合に底面 フ ィ ル ム が開 く の を防 く、 こ と がで き、 底面フ ィ ルム の折 り 目 と側縁融着部の交点にかか る ス ト レ ス を減少 して落下な どの 衝撃に対す る 実用強度を高め る 事がで き る 。  In addition, with this configuration, a laminate film having a base film as a base film, such as a biaxially stretched film, can be used as a bottom film. Even when a film is used, since the front and rear films at a position below the intersection of the oblique fusion portion and the side edge fusion portion are fused, the bag is used. To prevent the bottom film from opening when internal pressure is applied to the bottom film, and to prevent the bottom film from opening at the intersection between the fold of the bottom film and the side edge fusion part. By reducing the loss, the practical strength against impacts such as falling can be increased.
ま た、 前記切欠 き部 よ り も 更に下側、 好ま し く は隅部に も 同様の切欠 き部を 1 個以上開けて、 その部分の袋の前面 と後 面の フ ィ ル ム も 融着さ せた構造 とす る こ と に よ り 、 更に 内袋 に保形性を持たせて 自 立性を高める こ と がで き る と共に、 袋 に 内圧がかか っ た場合に底面フ ィ ルムが開 く のを防 く、効果が 増加する ので落下等の衝撃に対する 実用強度を よ り 高め る こ と がで き る 。 Also, open one or more similar notches below the notches, preferably in the corners, and also fuse the front and rear films of that part. Due to the structure that is worn, the inner bag In addition to improving the self-sustainability by giving shape retention to the bag, it also prevents the bottom film from opening when internal pressure is applied to the bag and increases the effect, resulting in a fall, etc. It is possible to further enhance the practical strength against the impact of the steel.
ま た、 前記斜め融着部の外側を略斜めシール部に沿っ て下 部の隅部を切 り 落す こ と に よ り 、 内容品充填時に袋の底フ ィ ルム を開 きやす く して、 充填を よ り 容易に する こ と がで き る 但 し、 こ の部分を切 り 落す と、 前記の袋の 自 立性と耐落下強 度について は、 マイ ナス方向にな る ので、 袋の材質構成や要 求される機能の レ ベルに よ っ て、 適宜選択す る 必要があ る 。 そ して、 内袋の底面 フ ィ ルム が熱融着されに く い樹脂層が表 層 とな る様に積層さ れた積層体であ る場合、 斜め融着部 と側 縁融着部 との交点の下側近傍の、 前面 と後面 と を融着 し た部 分を残 して下部の隅角部を切 り 落すこ と が好ま しい。  In addition, by cutting off the lower corner of the outside of the oblique fusion portion along the substantially oblique seal portion, the bottom film of the bag can be easily opened when filling the contents, Filling can be made easier.However, if this part is cut off, the self-sustainability and drop strength of the bag will be in the negative direction, so An appropriate selection must be made according to the material composition and the required function level. If the bottom film of the inner bag is a laminate in which the resin layer that is difficult to be heat-sealed is formed as a surface layer, the oblique fusion portion and the side edge fusion portion are formed. It is preferable to cut off the lower corner, leaving the part where the front and rear surfaces are fused near the lower part of the intersection with the intersection.
本発明について更に、 詳細に説明する 。  The present invention will be described in more detail.
そ して、 本発明で使用する袋の素材 と して は、 ポ リ エチ レ ン、 ポ リ プロ ピ レ ン等のポ リ オ レ フ ィ ン フ ィ ルム単独で用い ら れる こ と も あ る が、 ラ ミ ネー ト フ ィ ルム も 使用さ れる 。 ラ ミ ネ一 ト フ イ ルム と して は内層にポ リ エチ レ ンやポ リ プロ ピ レ ン （ C P P ) 等のポ リ オ レ フ イ ン系の熱接着性を有す る樹 脂層か ら な る ラ ミ ネ一 ト フ ィ ルムであ っ て、 二軸延伸ポ リ ア ミ ド、 二軸延伸ポ リ エス テル、 二軸延伸ポ リ プロ ピ レ ン等の 比較的機械強度のあ る フ ィ ルム を基材 と し、 こ れ ら の基材に 更に必要性能を付加する ために、 例えば防湿性を必要 と する 場合はシ リ カ 蒸着フ ィ ル ムやエチ レ ン · ビニル アル コ ール共 重合体を、 遮光性を必要 とする場合はアル ミ 箔、 アル ミ 蒸着 フ ィ ルム を積層す る等、 多層 フ ィ ル ムがその用途に よ っ て適 宜選定さ れる 。 多層 フ ィ ルム を例示する と、 例えば、 アル ミ 箔 とポ リ エチ レ ン の ラ ミ ネー ト フ ィ ル ム、 エチ レ ン · ビニル アル コ ール共重合体 （ E V O H ) と ポ リ エチ レ ン と の多層 フ イ ルム、 ポ リ ア ミ ド と E V O H と ポ リ エチ レ ンの多層フ ィ ル ム等があ る 。 又、 こ れ ら の フ ィ ルム と ポ リ エチ レ ンの単体フ ィ ルム を接着せずに重ね合わせた 2 重の フ ィ ルム等が適宜使 用 さ れる が、 こ れ ら に限定さ れる も のではない。 以下、 こ の発明の一実施例 について 図面を参照 して説明す る 。 Further, as a material of the bag used in the present invention, a polyolefin film such as polyethylene or polypropylene may be used alone. However, a laminated film is also used. The laminating film is a resin layer with a polyolefin-based heat-adhesive property such as polyethylene or polypropylene (CPP) in the inner layer. Laminate film consisting of relatively high mechanical strength such as biaxially stretched polyamide, biaxially stretched polyester, biaxially stretched polypropylene, etc. Certain films are used as base materials, and for example, moisture-proof properties are required to add necessary performance to these base materials. In this case, multi-layers such as laminated layers of silica-deposited film or ethylene-vinyl alcohol copolymer are used.If light-shielding properties are required, aluminum foil or aluminum-deposited films are laminated. The film is selected appropriately according to its use. Examples of the multilayer film include, for example, a laminate film of aluminum foil and polyethylene, an ethylene-vinyl alcohol copolymer (EVOH) and a polyethylene film. There are multi-layer films of polyamide and polyamide, and multi-layer films of EVOH and polyethylene. In addition, a double film obtained by laminating these films and a single film of polyethylene without bonding them is used as appropriate, but is not limited to these. It is not something. Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
第 1 図〜第 4 図は本発明のバ ッ グィ ンボ ッ ク ス 内袋の実施 例を示す も ので 内袋を折 り 畳んだ状態の平面図であ る 。 ま た 第 4 図は第 3 図の内袋の A— A ' の断面図であ る 。  FIG. 1 to FIG. 4 show an embodiment of a bag bag box inner bag of the present invention, and are plan views showing a state where the inner bag is folded. FIG. 4 is a cross-sectional view taken along line AA ′ of the inner bag shown in FIG.
第 1 図〜第 4 図において、 1 は内袋であ り 、 2 は上部融着 部であ り 3 は底部融着部、 4 は折 り 込ま れた底面フ ィ ル ム、 5 、 5 ' は融着前に底面 フ ィ ルム に開け ら れて い る 透孔、 6 は袋の前面 フ ィ ル ム 、 7 は後面フ ィ ル ム、 8 は側縁融着部、 9 は底部の斜め融着部、 1 0 は上部の斜め融着部で あ る 。 1 4 は内容品の注出用のク 口 一ジ ャーであ る 。  In Figs. 1 to 4, 1 is an inner bag, 2 is an upper fusion part, 3 is a bottom fusion part, 4 is a folded bottom film, 5, 5 '. Is a through hole opened in the bottom film before fusion, 6 is a front film of the bag, 7 is a rear film, 8 is a side edge fusion part, and 9 is a diagonal bottom. The fused portion, 10 is the upper oblique fused portion. Reference numeral 14 denotes a mouthpiece for discharging the contents.
折 り 込ま れた底面フ ィ ルム 4 に予め透孔 5 、 5 ' を側縁融 着部 8 と底部斜め融着部の交点 1 2 の下側近傍に開けて か ら 側縁融着を行な う こ と に よ り 、 こ の孔の位置の前面 と後面の フ ィ ルム が融着さ れてい る 。 Open holes 5, 5 ′ in the folded bottom film 4 in advance near the lower side of the intersection 12 between the side edge fusion part 8 and the bottom oblique fusion part. By performing side edge fusion, the front and rear films at the position of this hole are fused.
ま た、 上部の斜め融着部 1 0 の外側には把手孔 1 5 が開け ら れて い る 。  In addition, a handle hole 15 is formed outside the upper oblique fusion portion 10.
第 5 図は、 第 3 図のノ' ッ グィ ンボ ッ ク ス 内袋に外箱無 しで 内容品の液体が充填された状態を示 した も ので ある 。 底面フ イ ルムが広が っ て容器底面を形成 し、 ま た、 袋全体が下部に い く ほ ど広がっ た形状にな る た め、 重心が低 く な り 、 優れた 自 立性が得 ら れる 。  FIG. 5 shows a state in which the inner bag of the nodding box of FIG. 3 is filled with the liquid of the contents without an outer box. The bottom film expands to form the bottom of the container, and the entire bag expands to the bottom, so the center of gravity is lowered and excellent self-sustainability is obtained. Is received.
ま た、 透孔融着部 5 、 5 ' に よ り 袋の前面、 後面 フ ィ ルム が一体化 して い る ため交点 1 2 の部分の フ ィ ル ムは広が る こ と がな く 、 実用強度が高め ら れる 。  In addition, since the front and rear films of the bag are integrated by the through-hole fusion parts 5 and 5 ', the film at the intersection 12 does not spread. The practical strength is increased.
ま た、 第 6 図は内容品液体が充填された第 3 図のバ ッ グィ ンボ ッ ク ス 内袋を外箱か ら取 り 出 して 内容品を排出 して い る 状態で あ り 、 袋の上部を二つ折 り に して、 上部把手孔を二つ 重ねて片方の手でつかみ、 も う 一方の手で底部の一方の隅部 をつかむこ と に よ り 取扱いが容易であ る こ と を示 して い る 。  Fig. 6 shows a state in which the bag inside the bag box of Fig. 3 filled with liquid is taken out of the outer box and the contents are discharged. Easy handling by folding the top of the bag in two, overlapping the top handle holes with one hand and grasping one corner of the bottom with the other hand It is shown that .
ま た、 第 7 図は本発明の他の一実施例で あ り 、 底部の前面 フ ィ ル ム と後面フ ィ ルム が融着されて い る部分を残 して底部 隅角部が切 り 取ら れて い る 。  FIG. 7 shows another embodiment of the present invention, in which the bottom corner is cut off except for the portion where the front and rear films are fused. Have been taken.
ま た、 第 8 図、 第 9 図も 本発明の他の一実施例で あ り 、 上 部融着部 2 の上側に把手部 1 6 を形成 した も のであ る 。  FIGS. 8 and 9 show another embodiment of the present invention, in which a handle 16 is formed above the upper fusion portion 2.
ま た、 第 1 0 図は外箱にセ ッ ト し た ま ま 内容品 を排出 して い る状態の透視図であ る 。 なお、 第 1 1 図は、 従来のガゼ ヅ ト 形状のノ、" ヅ グイ ンボ ッ ク ス 内袋の例を示す斜視図で あ り 、 第 1 2 図は充填さ れた 従来のガゼ ッ ト 袋形状のバ ッ グィ ンボ ッ ク ス 内袋の例を示す も のであ る。 産業上の利用可能性 FIG. 10 is a perspective view showing a state in which the contents are discharged while being set in the outer box. FIG. 11 is a perspective view showing an example of a conventional gusset-shaped inner bag, and FIG. 12 is a perspective view of a conventional gusset-shaped inner bag. This is an example of a bag-shaped bag in a bag-shaped inner bag.
以上の よ う に、 本発明 に よ るノ、" ッ グィ ンボ ッ ク ス 内袋は、 袋の下部に前面 と後面の フ ィ ルムの間に底面 と なる フ ィ ルム を 内側に折 り 込んで周囲 を融着 し、 且つ、 折 り 込ま れた底面 フ ィ ルム と前面、 後面フ ィ ル ム を融着 した袋側面の両側縁融 着部の底面フ ィ ルム の折 り 目 と の交点、 又は交点の下側近傍 か ら 、 袋の底融着の適宜位置迄を連結 して斜めに融着する と 共に、 その斜め融着部 と側縁融着部 との交点の近傍の、 該交 点よ り 下側の位置の側縁融着面に該当する位置の底面フ ィ ル ム に孔を設けて側縁融着を行な う こ と に よ り 、 その位置の前 面 と後面の フ ィ ルム を融着 した構造に した こ と によ り 、 充填 済の袋に優れた 自立性を与え、 ま た、 液体の排出時の袋の底 部の隅の フ ィ ルム 間の残液を無 く し、 且つ、 袋に内圧がかか つ た場合に、 底面フ ィ ル ム の折 り 目 と側縁融着の交点にかか る ス ト レ ス を減少 して落下な どの衝撃に対する 実用強度を高 め る事がで き る 。  As described above, according to the present invention, the inner bag of the boxing box is formed by folding the film serving as the bottom surface between the front and rear films at the bottom of the bag. At the intersection of the bottom film and the front and back films where the front and rear films are fused. , Or from the vicinity of the lower side of the intersection to the appropriate position of the bottom fusion of the bag, and fuse it obliquely. By making a hole in the bottom film at the position corresponding to the side edge fusion surface below the intersection and performing the side edge fusion, the front and rear surfaces at that position The fused structure of this film gives the filled bag excellent independence, and the bottom of the bag when discharging liquid When there is no residual liquid between the two films and the internal pressure is applied to the bag, stress is applied to the intersection of the fold of the bottom film and the fusion of the side edges. And the practical strength against impacts such as falling can be increased.
ま た、 袋上部の両隅部に袋の上部融着部 と側縁融着部を連 結する 斜め融着を設けた こ と に よ り 、 内袋を逆さ ま に し T液 体を排出 した場合に内袋の上部の隅の残液を無 く す事がで き o In addition, the oblique fusing that connects the upper fusing part and the side fusing part of the bag is provided at both corners of the upper part of the bag, so that the inner bag is turned upside down and the T liquid is discharged. Liquid in the upper corner of the inner bag o
ま た、 前記袋下部の斜め融着 と側縁融着部 との交点の下側 近傍の、 底面フ ィ ル ム に孔を設けて側縁融着を行な って、 前 面 と後面フ ィ ルム を融着 した部分を残 して、 前記斜め融着の 外側の部分を略斜め融着部に沿っ て切 り 落すこ と に よ り 、 底 フ ィ ル ム が開きやす く な り 、 充填を容易にす る こ と がで き る ま た、 袋上部両隅部の袋の上部融着部 と側縁融着部を連結 する斜め融着の外側に把手用の孔を閧け る こ と に よ り 、 充填 済の内袋を外箱無 しで持ちやす く する こ とがで き る 。  In addition, a hole is formed in the bottom film near the intersection of the oblique fusion at the lower part of the bag and the side fusion part to perform the side margin fusion, and the front and rear fusion parts are formed. By cutting off the outer part of the oblique fusion along substantially the oblique fusion part, leaving the part where the film is fused, the bottom film becomes easier to open. It can be easily filled, and a hole for the handle is provided outside the diagonal fusion that connects the upper fusion part and the side edge fusion part of the bag at both upper corners of the bag. As a result, the filled inner bag can be easily held without an outer box.

Claims

請求の範囲 The scope of the claims
1 . 注出 口 を有す る前面フ ィ ル ム、 後面フ ィ ル ム及び前記 2 種類のフ ィ ル ム の間 に折 り 込ま れる底面フ ィ ル ム と を融着 し た 自立袋 よ り な る ノ、" ッ グイ ンボ ッ ク ス 内袋で あ って、 上記バ ッ グィ ン ボ ッ ク ス 内袋が上部に融着部にて収納部よ り 区切 ら れたコーナ一部を有する こ と を特徴 と するバ ッ グィ ンボ ッ ク ス 内袋。  1. A self-standing bag in which a front film with a spout, a rear film, and a bottom film that is inserted between the two types of films are fused. This is the inner bag of the bag-in box, and the bag-in box of the above-mentioned bag-in box has the upper part of the corner part separated from the storage part by the fusion part. Bag bag box inner bag characterized by having.
2 . 少な く と も 1 つの上記コ ーナー部に孔が設け ら れて い る 請求項 1 記載のバ ヅ グイ ンボ ッ ク ス 内袋。  2. The bag according to claim 1, wherein at least one of the corners has a hole.
3 . 前記 自立袋が角底袋であ る請求項 1 ま た は 2 記載のパ ッ グィ ンボ ッ ク ス 内袋。  3. An inner bag according to claim 1 or 2, wherein the self-standing bag is a square bottom bag.
4 . 前記角底袋の下部の三角部が切断除去さ れてい る こ と を 特徴と する請求項 3 記載のバ ッ グイ ンボ ッ ク ス 内袋。  4. The bag-in-box inner bag according to claim 3, wherein the lower triangular portion of the square bottom bag is cut and removed.
5 . 前記底面フ ィ ル ム が熱融着され難い樹脂層が表層 と な る よ う に積層さ れた積層体であ り 、 側縁 と前記底面フ ィ ル ム の 折れ線 と の交点ま た はそ の近傍において前記底面フ ィ ルム を 切 り 欠いて前面フ ィ ルム と後面 フ ィ ルム が融着されて い る こ と を特徴 と する請求項 1 ない し 4 記載のバ ッ グイ ン ボ ッ クス 内袋。  5. A laminated body in which the resin film to which the bottom film is unlikely to be thermally fused is laminated so as to be a surface layer, and an intersection between a side edge and a broken line of the bottom film is formed. 5. The bag-in-bom according to claim 1, wherein the bottom film is cut away in the vicinity thereof, and the front film and the rear film are fused. Box inner bag.
PCT/JP2001/002357 2000-04-04 2001-03-23 Bag-in-box inner bag WO2001074675A1 (en)

Priority Applications (2)

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AU2001242773A AU2001242773A1 (en) 2000-04-04 2001-03-23 Bag-in-box inner bag
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JP2000101909A JP2001278339A (en) 2000-04-04 2000-04-04 Internal bag of bag-in-box
JP2000-101909 2000-04-04

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US20030059130A1 (en) 2003-03-27

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