JP2001270533A - Standing packaging pouch and reinforcing method therefor - Google Patents

Standing packaging pouch and reinforcing method therefor

Info

Publication number
JP2001270533A
JP2001270533A JP2000082105A JP2000082105A JP2001270533A JP 2001270533 A JP2001270533 A JP 2001270533A JP 2000082105 A JP2000082105 A JP 2000082105A JP 2000082105 A JP2000082105 A JP 2000082105A JP 2001270533 A JP2001270533 A JP 2001270533A
Authority
JP
Japan
Prior art keywords
packaging bag
self
side seal
seal portion
supporting
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.)
Pending
Application number
JP2000082105A
Other languages
Japanese (ja)
Inventor
Minoru Takada
実 高田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujimori Kogyo Co Ltd
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 JP2000082105A priority Critical patent/JP2001270533A/en
Publication of JP2001270533A publication Critical patent/JP2001270533A/en
Pending legal-status Critical Current

Links

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
    • 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"

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a standing packaging pouch which does not lose its self-supporting property even though the quantity of its contents decreases. SOLUTION: The standing packaging pouch having a folding part at its bottom is characterized by a columnar reinforcing mechanism provided at least at one of its side sealed parts.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、自立性包装袋に関
し、特に内容物の注出途中においても良好な自立性を保
持することができる自立性包装袋及びその補強方法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-supporting packaging bag, and more particularly to a self-supporting packaging bag capable of maintaining good self-sustainability even while contents are being poured out, and a reinforcing method thereof.

【０００２】[0002]

【従来技術】従来、可撓性シートからなる胴部シートの
下部に、山形状に折り込んだ底部シートを挿入し、底部
シートが拡開できるように加熱接着した包装袋は、いわ
ゆるスタンディングパウチとして液体や粉体の充填用の
自立性包装袋として一般に知られている。2. Description of the Related Art Conventionally, a bottom bag folded into a mountain shape is inserted into a lower portion of a body sheet made of a flexible sheet, and the package bag heated and bonded so that the bottom sheet can be opened is a liquid as a so-called standing pouch. And a self-contained packaging bag for filling powder.

【０００３】上述の自立性包装袋は、それ自体自立性を
備えているものの、内容物が液体や粉体であるため、外
力の作用で胴部シートにしわが生じ、自立性包装袋の美
観が低下したり、特に内容物を注出するに従ってその自
立性が失われ、その自立性包装袋の形がくずれてしまう
欠点があった。この欠点を補うために、フィルムの厚み
を厚くする等の手段が取られていたが、なお、途中まで
使用して内容物が残っている場合、矢張自立性に欠ける
という欠点があった。[0003] Although the above-mentioned self-supporting packaging bag itself has self-supporting properties, since the contents are liquid or powder, the body sheet is wrinkled by the action of external force, and the aesthetic appearance of the self-supporting packaging bag becomes poor. There is a drawback that the self-sufficiency is lost and the self-supporting packaging bag loses its shape as the contents are poured out. In order to compensate for this drawback, measures such as increasing the thickness of the film have been taken. However, there is a drawback in that when the contents are left halfway and the contents remain, the insufficiency of the Yabari independence is lacking.

【０００４】そこで、この点を改良し包装袋自体の自立
性を向上させるために種々の考案が提案されている。例
えば、実開平６−８５２４３号公報には包装袋を構成す
る相対する２枚のシー体とその底部を形成する底フィル
ムからなる包装袋において、前記２枚のシ−ト体の内、
片側が透明性を有する合成樹脂フィルムよりなり、別の
片側が少なくとも２本の折り曲げ罫線を有する紙製シー
トでなることを特徴とする包装袋が開示されている。し
かし、この包装袋は自立性包装袋の自立性は向上するも
のの、胴部シートの一方を紙シートに変更する等、異な
った材料が必要となる。また、特開平６−１２２４５６
号公報には、底部において表裏両側が円弧状に拡開し厚
み方向に広がった形状の自立性軟包装袋において、少な
くとも一方のサイドシール部の幅を大きくしたことを特
徴とする自立性軟包装袋が開示されている。しかし、こ
の包装袋はサイドシール部の幅を大きくするだけなの
で、補強として充分とは言えない。更に、特開平１１−
１９３０３８号公報には対向配置された可撓性シ−トの
両サイド部を接着してシ−ル部を形成すると共に、底部
を拡開して自立可能とする自立性包装袋において、上記
両サイド部の両シール部に、該シ−ルの長手方向に延設
される凹凸形状のリブを備え、このリブを袋自立時の支
柱とするに際し、該リブを、可撓性シ−トの両サイド部
のシ−ル部で、該シ−ルの長手方向の全長に渡ってリブ
を設けることが開示されているが、この場合、単に折り
目を付けてあるだけなので、包装袋の材質によっては折
り目が浅くなるか、或いは消えてしまい補強として充分
機能しない場合があった。Therefore, various ideas have been proposed to improve this point and to improve the independence of the packaging bag itself. For example, Japanese Unexamined Utility Model Publication No. Hei 6-85243 discloses a packaging bag comprising two opposing sheets forming a packaging bag and a bottom film forming the bottom thereof.
A packaging bag is disclosed in which one side is made of a transparent synthetic resin film and the other side is made of a paper sheet having at least two folded ruled lines. However, this packaging bag requires a different material, such as changing one of the body sheets to a paper sheet, although the self-sufficiency of the packaging bag is improved. In addition, Japanese Patent Application Laid-Open No. 6-122456
Japanese Patent Application Publication No. JP-A-2005-115122 discloses a self-supporting soft packaging characterized in that the width of at least one of the side seal portions is increased in a self-supporting soft packaging bag having a shape in which the front and back sides are opened in an arc shape at the bottom and expanded in the thickness direction. A bag is disclosed. However, this packaging bag is not sufficient for reinforcement because it only increases the width of the side seal portion. Further, Japanese Unexamined Patent Publication No.
Japanese Patent No. 193038 discloses a self-supporting packaging bag in which both sides of a flexible sheet facing each other are adhered to form a seal portion, and a bottom portion is expanded to be self-supporting. Both seal portions of the side portion are provided with a rib having an uneven shape extending in the longitudinal direction of the seal. When the rib is used as a support when the bag is free standing, the rib is used as a flexible sheet. It is disclosed that a rib is provided at the seal portion on both side portions over the entire length in the longitudinal direction of the seal. In this case, however, the crease is merely formed, so that depending on the material of the packaging bag. In some cases, the folds became shallow or disappeared and did not function sufficiently as reinforcement.

【０００５】[0005]

【発明が解決しようとする課題】そこで、本発明者は上
記の点を改良すべく種々検討した結果、本発明を完成し
たもので、本発明の目的は自立性を向上させた自立性包
装袋を提供する。The present inventor has made various studies to improve the above points, and as a result, completed the present invention. An object of the present invention is to provide a self-supporting packaging bag having improved autonomy. I will provide a.

【０００６】[0006]

【課額を解決するための手段】本願発明は、底部に折込
部を有する自立性包装袋において、前記包装袋の少なく
とも一方のサイドシール部に柱状補強機構を設けたこと
を特徴とする自立性包装袋であり、前記柱状補強機構は
前記サイドシール部が包装袋胴部側に折られ、少なくと
もその一部が前記胴部に固着されてなることが好まし
く、また、前記柱状補強機構は前記サイドシール部に形
成された筒状の未シール部であることが好ましい。そし
て、前記サイドシ−ル部に設けた柱状補強機構の筒状の
未シール部に空気を充填封入することによりサイドシー
ルを補強するようにして包装袋の自立性を補強すること
が好ましい。According to the present invention, there is provided a self-supporting packaging bag having a folded portion at a bottom, wherein a columnar reinforcing mechanism is provided on at least one side seal portion of the packaging bag. Preferably, the columnar reinforcing mechanism is such that the side seal portion is folded toward the packaging bag body, and at least a part thereof is fixed to the body, and the columnar reinforcing mechanism is provided on the side. It is preferable that the cylindrical unsealed portion is formed in the sealed portion. It is preferable to reinforce the side seal by reinforcing the side seal by filling and filling air into a cylindrical unsealed portion of the columnar reinforcing mechanism provided in the side seal portion.

【０００７】[0007]

【発明の実施の形態】本発明について詳細に説明する。
本発明にかかる包装袋は、内面に熱接着性を有するフィ
ルムを対向配置し両サイド部を熱接着すると共に、その
底部は山形状に折り込んだ底面フィルムを熱溶着して構
成されており、前記底面フィルムを拡開して自立できる
ようにした所謂スタンディングパウチとして液体や粉体
の包装袋として使用されているものである。そして、こ
の包装袋を構成する原反シートの材料としては、通常こ
の種の包装袋を構成する合成樹脂フィルムであれば良
く、該合成樹脂フィルムは熱接着性を有する単一フィル
ムであっても、また少なくとも一方の面に熱接着性フィ
ルムを積層した積層フィルムであっても良い。具体的に
例示すると（２軸）延伸ポリエチレンテレフタレート、
（２軸）延伸ナイロン或いは（２軸）延伸ポリプロピレ
ンに例えば低密度ポリエチレンや中密度ポリエチレンな
どの熱接着性合成樹脂フィルムを積層したもの等があ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail.
The packaging bag according to the present invention is configured such that a film having thermal adhesiveness is disposed on the inner surface of the packaging bag so as to face each other, and both side portions are thermally bonded, and the bottom portion is formed by heat welding a bottom film folded into a mountain shape. It is used as a packaging bag for liquids or powders as a so-called standing pouch in which the bottom film can be expanded to be self-supporting. The material of the raw sheet constituting the packaging bag is usually a synthetic resin film constituting this type of packaging bag, and the synthetic resin film may be a single film having thermal adhesiveness. Alternatively, a laminated film in which a heat adhesive film is laminated on at least one surface may be used. Specifically, (biaxially) stretched polyethylene terephthalate,
For example, (biaxial) stretched nylon or (biaxial) stretched polypropylene is laminated with a heat-adhesive synthetic resin film such as low-density polyethylene or medium-density polyethylene.

【０００８】本発明においてサイドシール部に設ける柱
状補強機構としては、袋が自立するときの支柱の役割を
果たせば良く、例えば、サイドシ−ル部に補強用部材を
挿入したもの、サイドシ−ル部を包装袋の胴部側に折り
曲げられたもの、又はサイドシ−ル部に厚みを持たせた
もの等何れでもよいが、サイドシ−ル部を包装袋の胴部
側に折り曲げられたものは製造が容易であり、また、外
観が成型容器のような形状となるので好ましい。サイド
シ−ル部を包装袋の胴部側に折り曲げ、筒状の未シ−ル
部としたものは、この未シ−ル部に空気を充填封入する
ことによって確実にサイドシ−ルを補強することができ
るので好ましい。In the present invention, the columnar reinforcing mechanism provided on the side seal portion only has to play the role of a column when the bag is self-supporting. For example, a reinforcing member inserted into the side seal portion, a side seal portion, May be bent to the body side of the packaging bag, or may be made to have a thicker side seal portion, but those having the side seal portion bent to the body side of the packaging bag are not manufactured. This is preferable because it is easy and the appearance is shaped like a molded container. When the side seal portion is bent toward the body side of the packaging bag to form a tubular non-sealed portion, the non-sealed portion is filled with air to securely reinforce the side seal. Is preferred.

【０００９】また、柱状補強機構としてサイドシール部
を包装袋の胴部側に折り、胴部に固着する。胴部に固着
する手段としては、粘着剤からなる両面テープやホット
メルト型接着剤等を胴部とサイドシール部との間に介在
させて一体とても良く、或いは、折り曲げたサイドシー
ル部の上より単に接着テープで一体としても良い。サイ
ドシール部を胴部と一体とすることによって、内容品が
充填されたとき、外観は瓶やチューブ或いは成型容器の
様な外観を呈する。Further, as a columnar reinforcing mechanism, the side seal portion is folded toward the trunk side of the packaging bag and fixed to the trunk portion. As a means for fixing to the body, a double-sided tape or a hot-melt type adhesive made of an adhesive is interposed between the body and the side seal part so that it is very good, or from above the folded side seal part. It may be simply integrated with an adhesive tape. By integrating the side seal portion with the body portion, when the contents are filled, the external appearance is like a bottle, a tube, or a molded container.

【００１０】次に図面をもって本発明を更に具体的に説
明する。図１は本発明にかかる自立性包装袋の１例を示
す正面図、図２はその断面図である。図１及び図２にお
いて、自立性包装袋１０は、対向配置された２枚の胴部
シート１１の下部に、山形状に折り込んだ底部シート１
２を加熱接着しボトムシール部１３を形成する。２枚の
胴部シート１１の両サイド部を同様に加熱接着しサイド
シール部１５を形成する。これらの胴部シート１１及び
底部シート１２に囲まれた空間内に、清涼飲料水等の液
体や粉体を充填すると山形状に折り込んだ底部シート１
２が拡開して自立する。そして、本発明の自立包装袋に
おいては、サイドシ−ル部の少なくとも一方に柱状補強
機構として筒状の未サイドシ−ル部１６が構成されてい
る。そして、この未サイドシ−ル部１６に空気を充填し
て空気柱としても良い。図３は本発明の他の実施例を示
す自立性包装袋の正面図を示す。この図において、サイ
ドシ−ル部の片側の未サイドシ−ル部１６を空気を充填
し、他方のサイドシ−ル部の上部に注出口１７を設けた
ものである。このサイドシ−ル部１６は自立性包装袋に
内容品を充填しヒ−トシ−ルする時に同時にシ−ルする
ことによって空気を封入しても良い。Next, the present invention will be described more specifically with reference to the drawings. FIG. 1 is a front view showing an example of a self-supporting packaging bag according to the present invention, and FIG. 2 is a sectional view thereof. In FIG. 1 and FIG. 2, a self-supporting packaging bag 10 has a bottom sheet 1 folded in a mountain shape under two body sheets 11 arranged opposite to each other.
2 are heated and bonded to form a bottom seal portion 13. Both side portions of the two body sheets 11 are similarly heated and bonded to form a side seal portion 15. When a liquid or powder such as soft drink is filled in a space surrounded by the body sheet 11 and the bottom sheet 12, the bottom sheet 1 folded into a mountain shape.
2 expands and becomes independent. In the self-contained packaging bag of the present invention, at least one of the side seal portions is provided with a cylindrical non-side seal portion 16 as a columnar reinforcing mechanism. The non-side seal portion 16 may be filled with air to form an air column. FIG. 3 is a front view of a self-supporting packaging bag showing another embodiment of the present invention. In this drawing, air is filled in an unsealed seal portion 16 on one side of a side seal portion, and a spout 17 is provided above the other side seal portion. The side seal part 16 may be filled with air by filling the self-contained packaging bag with the contents and sealing at the same time as the heat sealing.

【００１１】図４は本発明の他の実施例を示す自立包装
袋の正面図である。図４において、サイドシール部１５
を折り曲げて包装袋の胴部シート１１に密着させたもの
である。図５は密着手段を例示的に示した図である。図
６ａはサイドシール部１５を折り曲げ胴体シートとの間
に粘着剤テ−プ、ホットメルト接着剤等１８を介在さゑ
たものである。また、図６ｂは、サイドシール部１５を
折り曲げ、その上より接着テープ１９で押さえて胴体シ
ート１１に密着させた場合である。図７は注出口１７を
有する包装袋において、同様にサイドシ−ル部を折り曲
げ胴体シ−トに密着させた場合を示す。FIG. 4 is a front view of a self-contained packaging bag showing another embodiment of the present invention. In FIG. 4, the side seal portion 15
Is folded and brought into close contact with the body sheet 11 of the packaging bag. FIG. 5 is a view exemplarily showing the contact means. In FIG. 6A, the side seal portion 15 is folded, and an adhesive tape, a hot melt adhesive 18 or the like 18 is interposed between the side seal portion 15 and the body sheet. FIG. 6B shows a case where the side seal portion 15 is bent and pressed on the adhesive sheet 19 to adhere to the body sheet 11. FIG. 7 shows a case where the side seal portion is similarly folded and closely attached to the body sheet in the packaging bag having the spout 17.

【００１２】[0012]

【実施例】実施例１ 厚さ１２μｍのポリエステルフィルムと厚さ８０μｍの
ポリエチレンフィルムとをドライラミネ−トによって積
層した複合フィルムを用いて長さ２５０ｍｍ、幅１００
ｍｍを有する図１に示すような自立性包装を製造した。
その際、この自立性包装袋のサイドシ−ル部は本体側に
４ｍｍ幅のシ−ル、続いて６ｍｍの空気柱を設け、その
外側に２ｍｍ幅のシ−ルよりなるようにした。この自立
性包装袋に内容物を充填すると底面フィルムが拡開して
自立性を有し、内容物を注出しても包装袋には皺を生じ
ることなく、両サイドの空気柱によって自立性を保持す
ることが出来た。EXAMPLE 1 A composite film obtained by laminating a polyester film having a thickness of 12 .mu.m and a polyethylene film having a thickness of 80 .mu.m by dry lamination was used to have a length of 250 mm and a width of 100 mm.
A self-supporting package as shown in FIG.
At this time, the side seal portion of the self-supporting packaging bag was provided with a 4 mm wide seal on the main body side, followed by a 6 mm air column, and a 2 mm wide seal outside the side. When the contents are filled in this self-supporting packaging bag, the bottom film expands and has self-supporting properties, and even when the contents are poured out, the packaging bags do not wrinkle, and are self-supporting by air columns on both sides. I was able to hold.

【００１３】[0013]

【発明の効果】以上のように、本発明は係る自立性包装
袋において、前記包装袋の少なくとも一方のサイドシー
ル部に柱状補強機構を設けることによって、材料の変更
や無駄を伴うことなく、自立性を向上させることができ
る。As described above, according to the present invention, in the self-supporting packaging bag according to the present invention, the column-shaped reinforcing mechanism is provided on at least one of the side seal portions of the packaging bag, so that the self-supporting packaging bag is not changed without any material change or waste. Performance can be improved.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明にかかる自立性包装袋を示す正面図。FIG. 1 is a front view showing a self-supporting packaging bag according to the present invention.

【図２】図１のＡ−Ａ線に沿う断面図。FIG. 2 is a sectional view taken along the line AA of FIG. 1;

【図３】本発明の他の実施例の包装袋であって、片方の
サイドシールに柱状補強機構として空気柱を有する自立
性包装袋を示す正面図。FIG. 3 is a front view showing a self-standing packaging bag according to another embodiment of the present invention, which has an air column as a columnar reinforcing mechanism on one side seal.

【図４】本発明の他の実施例の包装袋であって、両方の
サイドシールに柱状補強機構としてサイドシ−ル部を包
装袋の胴部フィルムに密着させた図。FIG. 4 is a view showing a packaging bag according to another embodiment of the present invention, in which a side seal portion is brought into close contact with a body film of the packaging bag as a columnar reinforcing mechanism on both side seals.

【図５】サイドシ−ル部を包装袋の胴部フィルムに密着
させた包装袋の平面図。FIG. 5 is a plan view of a packaging bag in which a side seal portion is closely attached to a body film of the packaging bag.

【図６】サイドシ−ル部を包装袋の胴部フィルムに密着
させた部分図。FIG. 6 is a partial view in which a side seal portion is brought into close contact with a body film of a packaging bag.

【図７】注出口を有する包装袋の一方のさサイドシ−ル
部を胴部フィルムに密着させた正面図。FIG. 7 is a front view in which one side seal portion of a packaging bag having a spout is brought into close contact with a body film.

【符号の説明】[Explanation of symbols]

１０ 自立性包装袋 １１ 胴部シート（可撓性シ
ート） １２ 底部シート（底部） １５ サイドシール部
（サイド部） １６ 未サイドシール部（空気柱） １７ 注出口 １８ 粘着剤等 １９ 接着テ−プDESCRIPTION OF SYMBOLS 10 Self-supporting packaging bag 11 Body sheet (flexible sheet) 12 Bottom sheet (bottom part) 15 Side seal part (side part) 16 Unside seal part (air column) 17 Spout port 18 Adhesive etc. 19 Adhesive tape

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】 底部に折込部を有する自立性包装袋にお
いて、前記包装袋の少なくとも一方のサイドシール部に
柱状補強機構を設けたことを特徴とする自立性包装袋。1. A self-supporting packaging bag having a folded portion at a bottom, wherein a columnar reinforcing mechanism is provided on at least one side seal portion of the packaging bag. 【請求項２】 前記柱状補強機構は前記サイドシール部
が包装袋胴部側に折られ、少なくともその一部が前記胴
部に固着されてなることを特徴とする請求項１に記載の
自立性包装袋。2. The self-supporting structure according to claim 1, wherein the side seal portion of the columnar reinforcing mechanism is folded toward the body of the packaging bag, and at least a part thereof is fixed to the body. Packaging bag. 【請求項３】 前記柱状補強機構は前記サイドシール部
に形成された筒状の未シール部であることを特徴とする
請求項１に記載の自立性包装袋。3. The self-supporting packaging bag according to claim 1, wherein the columnar reinforcing mechanism is a cylindrical unsealed portion formed in the side seal portion. 【請求項４】 請求項３に記載の自立性包装袋の前記未
シール部に空気を充填封入することによりサイドシール
を補強することを特徴とする自立性包装袋の補強方法。4. A method of reinforcing a self-supporting packaging bag according to claim 3, wherein a side seal is reinforced by filling the unsealed portion of the self-supporting packaging bag with air.
JP2000082105A 2000-03-23 2000-03-23 Standing packaging pouch and reinforcing method therefor Pending JP2001270533A (en)

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WO2003047993A1 (en) * 2001-12-07 2003-06-12 Jung-Min Lee Spout assembly for enhancing standing force of flexible container
JP2006027697A (en) * 2004-07-20 2006-02-02 Toppan Printing Co Ltd Self standing bag
JP2006036212A (en) * 2004-07-22 2006-02-09 Toppan Printing Co Ltd Flexible packaging bag with self-supporting property and method for sealing air into flexible packaging bag
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