JPH068966A - Sealing bag - Google Patents
Sealing bagInfo
- Publication number
- JPH068966A JPH068966A JP30609391A JP30609391A JPH068966A JP H068966 A JPH068966 A JP H068966A JP 30609391 A JP30609391 A JP 30609391A JP 30609391 A JP30609391 A JP 30609391A JP H068966 A JPH068966 A JP H068966A
- Authority
- JP
- Japan
- Prior art keywords
- film
- edge
- bag
- scratches
- scratch
- 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.)
- Granted
Links
Landscapes
- Bag Frames (AREA)
- Packages (AREA)
- Wrappers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、袋の実用上の強度を損
なうことなく、手指の力で開封することができるよう
に、加工を施した開封容易なプラスチック製密封袋に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processed and easily opened plastic sealed bag which can be opened by the force of fingers without impairing the practical strength of the bag.
【０００２】[0002]
【従来の技術】近時、プラスチックフィルム及びプラス
チックとアルミ箔等の金属、紙等他の素材との積層フィ
ルムは軽量であって気密性に優れ、高強度で取扱いに便
利である他、密封するにあたり特に接着剤を必要とせ
ず、単に熱融着するだけで足りうるため、食品、薬品、
小物類等、液状、粉末、ペースト、固形等多岐にわたる
種類、形状の商品の密封袋に使用されている。2. Description of the Related Art Recently, a plastic film and a laminated film of a plastic and a metal such as aluminum foil and other materials such as paper are lightweight and have excellent airtightness, high strength, convenient handling, and sealing. In particular, no adhesive is required, and it suffices to simply heat-seal it.
It is used as a sealed bag for various types and shapes of products such as small items such as liquids, powders, pastes and solids.
【０００３】これらの密封袋にあっては、素材の有する
長所が開封するにあたって逆に引裂き抵抗となり、破り
難いという問題を提起している。密封袋用のフィルムは
強靱である反面、一旦傷が生じるとその傷が伝播しやす
い傾向にあるため、前もって袋の端縁部に１箇所傷を与
え、これを破り口として引張ると手指の力だけで開封す
ることができる。[0003] In these sealed bags, the advantage of the material is that, when the bag is opened, resistance to tearing is conversely exhibited, and it is difficult to tear. The film for the sealed bag is tough, but once a scratch occurs, the scratch tends to propagate, so one scratch is made on the edge of the bag in advance. You can just open it.
【０００４】そのため、融着した部位のフィルムの端縁
部に前もって横断方向の長さ２ｍｍ以上の切傷（Ｉノッ
チ）を設ける方法が用いられているが、この場合袋の端
縁部のどこに破り口が設けられているか発見しにくい欠
点がある。又、端縁部にＶ字形の傷（Ｖノッチ）を設け
ることも行われ、この方法によれば破り口の発見は幾分
容易であるが、大量に製袋、充填するにあたり、Ｖ字形
の切断片が飛散し包装製品に付着したり、作業環境を悪
化させたりする傾向があった。For this reason, a method is used in which a cut (I notch) having a length of 2 mm or more in the transverse direction is provided in advance on the edge of the film at the fused portion. In this case, the edge of the bag is torn. There is a drawback that it is difficult to find out if the mouth is provided. In addition, a V-shaped scratch (V notch) is also provided on the edge portion, and although this method makes it easier to find the break, a V-shaped scratch is required when a large amount of bags are made and filled. Cut pieces tended to scatter and adhere to packaged products, or worsen the work environment.
【０００５】いずれにしても、これらの方法は破り口が
１箇所に限定されているため、その部位が常に望ましい
部位であるとは限らず、破れが不本意な方向へ伝播し、
内容物が周囲に飛散するなどの不便があった。又、大型
のノッチ（最低長さ２ｍｍ）であるため、製袋前のフィ
ルムに加工すると破れやすく製袋不能である。In any case, since the breakage points of these methods are limited to one place, that part is not always the desired part, and the breakage propagates in an undesired direction,
There were inconveniences such as the contents scattered around. In addition, since it is a large notch (minimum length 2 mm), if it is processed into a film before bag making, it is easily broken and bag making is impossible.
【０００６】[0006]
【発明が解決しようとする課題】密封袋の端縁線の任意
の部位から切断できる方法として、鋭い刃物で一定間隔
の穿孔を設ける方法はフィルムの一部が欠落し、これが
飛散したり刃物の目づまりを起こし切断開始効果が小さ
い。針を用いて孔を開ける方法は欠落は生じないが、フ
ィルムの切断開始効果が小さく、亀裂の生じる部位が一
定しないため、裂け目が不本意な方向に走りがちであっ
た。As a method of cutting from an arbitrary portion of the edge line of a hermetically sealed bag, a method of forming perforations at regular intervals with a sharp blade lacks a part of the film and scatters or cuts the blade. It causes clogging and has a small effect of starting cutting. Although the method of making holes with a needle does not cause a drop, the effect of initiating cutting of the film is small, and the portion where the crack occurs is not constant, so that the tear tends to run in an undesired direction.
【０００７】又、開封を容易とするためのフィルムへの
加工は、フィルムの実用上の強度に影響を及ぼし、フィ
ルムの加工工程、製袋工程、輸送、あるいは保管中にフ
ィルムが損傷したり、あるいは内容物を充填した密封袋
が損傷するおそれもある。これは薄いフィルムや強度の
比較的小さな材質のフィルムを使用した場合に特に問題
である。Further, the processing into a film for facilitating the opening has an influence on the practical strength of the film, and the film is damaged during the processing step of the film, the bag-making step, transportation or storage, Alternatively, the sealed bag filled with the contents may be damaged. This is a particular problem when a thin film or a film made of a material having a relatively low strength is used.
【０００８】そこで、欠落を生じず、異物が混入せず、
フィルムの実用上の強度を低下させず、かつ任意の部位
から手指の力で開封することのできる理想的な傷痕を有
する密封袋及びこれを製造するフィルムが求められてい
た。Therefore, there is no omission, no foreign matter is mixed in,
There has been a demand for a sealed bag having an ideal scar that does not lower the practical strength of the film and that can be opened from an arbitrary site with the force of a finger, and a film for producing the same.
【０００９】本発明は、密封袋の融着部の端縁部の任意
の部位から手指の力で容易に切断でき、しかもフィルム
の強度を損なわず、加工にあたり異物が混入しない密封
袋を提供することを目的とする。The present invention provides a sealed bag which can be easily cut from any part of the edge of the fusion-bonded portion of the sealed bag by the force of the fingers, does not impair the strength of the film, and prevents foreign matter from entering during processing. The purpose is to
【００１０】[0010]
【課題を解決するための手段】本発明は、加工工程にお
いてフィルムの破片等の異物が混入するおそれがなく、
フィルムの、製袋後融着部や端縁部となる部位に特定の
傷痕を配列し、微細な傷でありながら確実な切断開始効
果を意図したものである。According to the present invention, there is no possibility that foreign matter such as film fragments is mixed in the processing step.
It is intended to provide a certain cutting start effect in spite of minute scratches by arranging specific scratches on a portion of the film which will be a fusion-bonded portion after bag making or an edge portion.
【００１１】本発明の傷痕は縦が横より長い細長の形状
であり、その長さは０．５ｍｍ以下、好ましくは０．３
ｍｍ以下、０．１ｍｍ以上である。図１に示すように、
傷痕１は端縁部の端縁線２に対して横断方向に千鳥状に
配列する。傷痕１の先端３，４は鋭角であり、この部位
には亀裂が発生している。傷痕の他の部位にはほとんど
亀裂がない。このような傷痕の群が絶縁線上に存在すれ
ば、傷痕１の内方の先端４から破れ始める。本発明のよ
うに傷痕が端縁線２の内側に存在する場合には、図２矢
印に示すような応力が加わると傷痕の端縁線側先端３か
ら端縁線２に向かって図２中破線矢印で示すように破れ
始め、端縁部が破れた後、図３に示すように、他方の傷
痕の先端４から横断方向に破れ始める。The scar of the present invention has an elongated shape in which the length is longer than the width, and the length thereof is 0.5 mm or less, preferably 0.3.
mm or less and 0.1 mm or more. As shown in Figure 1,
The scratches 1 are arranged in a zigzag pattern in the transverse direction with respect to the edge line 2 of the edge portion. The tips 3 and 4 of the scar 1 have an acute angle, and a crack is generated at this portion. There are few cracks in other parts of the scar. If such a group of scratches exists on the insulated wire, it will start to tear from the inner tip 4 of the scratch 1. In the case where the scratch exists inside the edge line 2 as in the present invention, when stress as shown by the arrow in FIG. 2 is applied, from the edge 3 on the edge line side of the scratch toward the edge line 2 in FIG. It begins to tear as indicated by the dashed arrow, and after the edge has been torn, it begins to tear transversely from the tip 4 of the other scar, as shown in FIG.
【００１２】したがって、傷痕１の端縁線２に対して横
断方向の細長の傷痕とは、理想的には端縁線に対し９０
°であるが、９０°±２０°、好ましくは９０°±１５
°であれば、本発明の目的が達成される。Therefore, an elongated scar transverse to the edge line 2 of the scar 1 is ideally 90 with respect to the edge line.
90 ° ± 20 °, preferably 90 ° ± 15
If it is, the object of the present invention is achieved.
【００１３】欠落のない傷痕は、押し広げられたり、部
分的に切断されたりして生じたフィルムの局部的損傷で
あって、これらの傷痕を生ずるに際し、フィルムから分
離する断片が一切生じない。本発明において利用される
傷痕は、このような多数の傷痕で、その傷痕の形状はと
くに制限されるものではなく、図１で示される形状の他
線状の傷痕でもよい。これらの傷痕はフィルムを貫通し
ている場合が多いが、切断開始効果を期待することがで
きるならば、貫通、非貫通を問わない。A flawless scratch is a localized damage to the film caused by being spread or partially cut, and in producing these scratches, no fragments separate from the film. The scars used in the present invention are such a large number of scars, and the shape of the scars is not particularly limited, and may be other linear scars having the shape shown in FIG. These scratches often penetrate the film, but they may be penetrated or non-penetrated as long as a cutting start effect can be expected.
【００１４】傷痕群を設ける部位は、袋の融着部の端縁
部となる部位である。フィルムが厚く、強靱な場合には
端縁線上に設ける必要があり、フィルムが薄い場合には
端縁線の内側０．５〜３ｍｍの部位が望ましい。The region where the scars are provided is the region which is the edge of the fusion-bonded portion of the bag. If the film is thick and tough, it must be provided on the edge line, and if the film is thin, a portion 0.5 to 3 mm inside the edge line is desirable.
【００１５】本発明においては、上記の傷痕を千鳥状に
配列するものである。In the present invention, the above-mentioned scars are arranged in a staggered pattern.
【００１６】密封袋は、密封袋用のフィルムに傷痕群を
加工した後、図１１に示すようにその傷痕群の中央部を
切断して製袋されるが、その切断位置（Ａ0、Ｂ0）がフ
ィルムの蛇行によってＡ1〜Ａ2又はＢ1〜Ｂ2に変動する
と、図１２に示すようにＡの千鳥状配列の傷痕はＡ0、
Ａ1、Ａ2いずれの位置においてもすべてフィルム端縁に
傷痕がかかるようになる。しかし、Ｂの整列状配列の傷
痕は、切断位置がＢ0からＢ1〜Ｂ2に変動すると、傷痕
がフィルム端縁より内側に配列されるので、端縁から引
き裂くとき引き裂き開始抵抗がＢ0より大きくなり、フ
ィルムの総厚みが厚くなると、手で容易に切断するとい
う所期の目的を達成することができなくなってしまう。The sealed bag is manufactured by processing the group of scratches on the film for the sealed bag, and then cutting the center of the group of scratches as shown in FIG. 11 at the cutting positions (A 0 , B). 0 ) changes from A 1 to A 2 or B 1 to B 2 due to the meandering of the film, the scratches in the staggered arrangement of A are A 0 , as shown in FIG.
At both A 1 and A 2 positions, the film edge is scratched. However, when the cutting position changes from B 0 to B 1 to B 2 , the scratches in the aligned array of B are arranged on the inner side of the film edge, so that the tear initiation resistance when tearing from the edge is B 0. As the film becomes larger and the total thickness of the film becomes larger, the intended purpose of easily cutting by hand cannot be achieved.
【００１７】又、フィルムの総厚みが薄く、フィルムの
強度が比較的小さい場合には安全のため傷痕群はフィル
ム端縁線の内側に設けられるが、この場合には中央部に
十分な平滑面を設けた千鳥状傷痕配列付設具を用いて、
それにより加工された傷痕の中央部を切断すればよい。When the total thickness of the film is thin and the strength of the film is relatively small, the scratches are provided inside the edge line of the film for safety, but in this case, a sufficient smooth surface is formed in the central portion. Using the staggered scar arrangement tool with
The center portion of the scratch thus processed may be cut.
【００１８】このように千鳥状配列は、使用するフィル
ムの厚みあるいは強度に応じて意図したとおりの部位に
確実に傷痕群を付設することができるので、有利であ
る。As described above, the zigzag arrangement is advantageous because it is possible to surely attach the scratch group to the intended portion according to the thickness or strength of the film used.
【００１９】袋の形態としては、図４に示すような３方
シール型、図５に示すような４方シール型などがある。
５は縦方向融着部、６は横方向融着部、Ａは傷痕群であ
る。このように融着部５が最外縁に設けられているとき
には、損傷群を設けるべき部位は融着部の端縁部であ
る。又、袋の融着部の外側に融着されないフィルム部分
が残る場合には、傷痕群はこの融着されないフィルム部
分の端縁部に同様にして設ける。この場合も非融着部端
縁線上かもしくは端縁線内側部位に設ける。したがっ
て、本発明に係るフィルムは両方の端縁部に全長にわた
って、又は局部的に傷痕群を設けたものになる。しか
し、フィルムを縦方向に切断しながら同時に２以上の製
袋を行う大量生産方式の自動製袋充填機を用いる場合に
は縦方向に数列の傷痕群を設ける。図６に示すように、
縦横に桝目状の傷痕群を設けた場合には４方のいずれの
部位からも破ることのできる４方シール型袋が得られ
る。The form of the bag includes a three-way seal type as shown in FIG. 4 and a four-way seal type as shown in FIG.
Reference numeral 5 is a vertical fusion portion, 6 is a horizontal fusion portion, and A is a scar group. In this way, when the fused portion 5 is provided at the outermost edge, the site where the damage group should be provided is the edge portion of the fused portion. When a film portion which is not fused is left on the outer side of the fusion portion of the bag, a scar group is similarly provided on the edge portion of the film portion which is not fused. Also in this case, it is provided on the edge line of the non-fused portion or inside the edge line. Therefore, the film according to the present invention has scars formed on both edges along the entire length or locally. However, when using an automatic bag-making and filling machine of a mass-production type in which two or more bags are made at the same time while cutting the film in the lengthwise direction, several rows of scratch marks are provided in the lengthwise direction. As shown in FIG.
When grid-shaped scratches are provided in the vertical and horizontal directions, a four-way sealed bag that can be broken from any of the four sides can be obtained.
【００２０】なお、本発明においては、ＩノッチやＶノ
ッチ等の従来から知られている形状の傷痕を併用するこ
ともできる。In the present invention, it is also possible to use scratches having conventionally known shapes such as I notches and V notches.
【００２１】本発明に係る傷痕群は端縁線の全長にわた
って設けてもよいが、間欠的、局部的に設けることもで
きる。The scars according to the present invention may be provided over the entire length of the edge line, but may be provided intermittently or locally.
【００２２】本発明の密封袋を製造するフィルムは流
通、保管に耐えうる強度を有するものであればよいが、
好ましくはナイロン、ポリエステル、配向ポリプロピレ
ン等が使用される。これらのフィルムは強靱であるた
め、当然に手指の力で破り始めることはできない。製袋
にあたっては一般にこれらの基材フィルムに熱融着可能
な他のフィルムを積層したものを用いる。熱融着可能な
他のプラスチックフィルムとしては、低密度ポリエチレ
ン等のオレフィン系樹脂、ポリエチレン−酢酸ビニル共
重合体等が使用される。熱融着温度は押しつけ圧、押し
つけ時間、フィルムの厚さ、種類等によって異なるが、
８０〜１８０℃、通常は１２０〜１５０℃で行われ、こ
のような温度で溶融状態、少なくとも半溶融状態になる
ものが好ましい。The film for producing the hermetically sealed bag of the present invention may be any film as long as it has strength to withstand distribution and storage.
Nylon, polyester, oriented polypropylene and the like are preferably used. Since these films are tough, they cannot naturally start to break with the force of the fingers. For bag making, generally, a film obtained by laminating another film capable of being heat-sealed on these base material films is used. As the other heat-sealable plastic film, an olefin resin such as low density polyethylene, a polyethylene-vinyl acetate copolymer, or the like is used. The heat fusion temperature depends on the pressing pressure, pressing time, film thickness, type, etc.,
It is carried out at 80 to 180 ° C., usually 120 to 150 ° C., and those which are in a molten state or at least a semi-molten state at such a temperature are preferable.
【００２３】本発明の密封袋の製造に使用するフィルム
は、このように積層したプラスチックフィルムに上記の
傷痕群を加工したものも含まれるが、熱融着可能なフィ
ルムを積層する以前の上記強靱なフィルム基材に加工を
施したものも含まれる。すなわち、基材フィルムに多数
の傷痕を設けたものに、熱融着可能なフィルムその他の
フィルムを積層すると傷痕はこれら積層フィルムによっ
て覆われるが、現実に引裂き抵抗となる強靱なフィルム
は基材フィルムであるため、他のフィルムにより傷痕が
覆われても、基材フィルムに本発明の傷痕が設けられて
いれば充分に本発明の目的を達成することができる。The film used for producing the hermetically sealed bag of the present invention includes a plastic film laminated in this manner and processed with the above-mentioned scratches. However, the toughness before laminating the heat-fusible film is laminated. It also includes those obtained by processing a film base material. That is, when a base film having a large number of scratches is laminated with a heat-sealable film or other film, the scratches are covered by these laminated films, but a tough film that actually tears is a base film. Therefore, even if the scratch is covered with another film, the object of the present invention can be sufficiently achieved if the scratch of the present invention is provided on the base film.
【００２４】このような傷痕群を設ける工具としては、
特に限定はないが、金属ロールの円周面や金属板の平面
上に多数の細長い刃先を設ければよい。例えば図７に示
すように、金属面９に擬三角形状の切込みを入れ、この
擬三角形状の底辺を中心軸として、切込まれて金属面か
ら離された金属部位を起立させると、突起１０が突出
し、切込まれた部分が窪み１１として残る。突起１０の
窪み側の面、すなわち、切込まれた面１２の金属面に対
してなす角度は６０°以上９０°が好ましい。このよう
な突起を１列以上線状に配列し、金属を焼入れして用い
る。図８は円周面にこのような突起を設けた加工ロール
１３の斜視図、図９は図８中、２点鎖線で示す部分の拡
大平面図である。As a tool for providing such a scar group,
Although not particularly limited, a large number of elongated cutting edges may be provided on the circumferential surface of the metal roll or the flat surface of the metal plate. For example, as shown in FIG. 7, when the metal surface 9 is cut into a pseudo-triangular shape and the base of the pseudo-triangular shape is used as a central axis, a metal part that is cut and separated from the metal surface is erected. Protrude, and the cut portion remains as a recess 11. It is preferable that the surface of the protrusion 10 on the recessed side, that is, the angle of the cut surface 12 with respect to the metal surface is 60 ° or more and 90 °. One or more rows of such protrusions are linearly arranged, and the metal is quenched and used. FIG. 8 is a perspective view of the processing roll 13 provided with such protrusions on its circumferential surface, and FIG. 9 is an enlarged plan view of a portion indicated by a chain double-dashed line in FIG.
【００２５】図７に示すような突起１０でフィルムを押
圧すると、切込まれた面１２の辺縁部が刃先として作用
し、フィルム８に細長の傷痕１を穿設し、この傷痕１の
両先端は鋭角となり亀裂が存在する。円形の刃先の場合
には、傷痕の形状はランダムで半円形や三角形に近いも
の、枝分かれしたもの等がある。このように、傷痕の鋭
角が生じる部位が一定しないため円形の刃先で得られた
傷痕は切断開始効果が小さい。When the film is pressed by the projections 10 as shown in FIG. 7, the peripheral edge of the cut surface 12 acts as a cutting edge, and the film 8 is provided with elongated scratches 1. The tip is sharp and there are cracks. In the case of a circular cutting edge, the shape of the scar is random and may be a semicircular shape, a triangular shape, a branched shape, or the like. In this way, since the portion where the acute angle of the scratch is generated is not constant, the scratch obtained by the circular blade edge has a small cutting start effect.
【００２６】図１０は図８に示す加工ロール１３を用い
てフィルムを加工する１例を示す説明図である。加工ロ
ール１３と押えロール１４は１個所で接触しながら同一
の周速度で反対方向に回転している。両ロールの接触部
をフィルム８が通過する。このときフィルム８が加工ロ
ール１３の突起１０で押圧され、図１に示すような傷痕
１が配列する。１５はフィルムを巻出す原反である。FIG. 10 is an explanatory view showing an example of processing a film using the processing roll 13 shown in FIG. The processing roll 13 and the pressing roll 14 are rotating in the opposite directions at the same peripheral speed while contacting at one place. The film 8 passes through the contact portion of both rolls. At this time, the film 8 is pressed by the projections 10 of the processing roll 13, and the scratches 1 as shown in FIG. 1 are arranged. Reference numeral 15 is a raw material for unwinding the film.
【００２７】[0027]
実施例１ 幅７４０ｍｍ、基材層に延伸ポリプロピレンフィルム
（厚さ２５μ）、熱融着層にポリプロピレンフィルム
（厚さ２０μ）を用いた比較的薄い複合フィルム（合計
厚さ４５μ）に、加工ロール１３として、中央部に幅
１．５ｍｍの平滑面を残しその両側に最大幅０．５ｍｍ
の図７に示す突起を中心から中心までの距離０．７ｍｍ
で千鳥状に各２列（合計４列）に配列したものを用い
て、フィルムの幅方向両端縁から１０ｍｍの部位と、そ
こから内側に向って１２０ｍｍ毎に５列、合計７列の傷
痕群をフィルムの長さ方向に線状に加工し、次いで各傷
痕群の中央部を切断してロール状に巻き取り、６個の幅
１２０ｍｍ、長さ１０００ｍのロール状フィルムを得
た。巻き取り時、フィルム端部に傷痕があるため、若干
耳高となったが、特に支障もなく巻き取ることができ
た。Example 1 A comparatively thin composite film (total thickness 45 μm) using a width 740 mm, a stretched polypropylene film (thickness 25 μm) as a base material layer and a polypropylene film (thickness 20 μm) as a heat-sealing layer, and a processing roll 13 As a result, leave a smooth surface with a width of 1.5 mm in the center and leave a maximum width of 0.5 mm on both sides.
Distance from center to center of the protrusion shown in Fig. 7 is 0.7mm
Using a staggered arrangement of 2 rows each (4 rows in total), a portion of 10 mm from both widthwise edges of the film, and 5 rows every 120 mm inward from there, a total of 7 rows of scars Was processed into a linear shape in the length direction of the film, and then the central portion of each scratch group was cut and wound into a roll to obtain six roll-shaped films having a width of 120 mm and a length of 1000 m. At the time of winding, there was a scar on the edge of the film, so that the height of the ears was slightly increased, but the film could be wound without any trouble.
【００２８】得られたロール状のフィルムは、いずれも
幅方向両端縁線から０．７５ｍｍ内側に傷痕群が配置さ
れている。これを用いて自動製袋充填機でインスタント
ラーメン用の乾燥薬味３ｇづつを充填しながら三方シー
ル型の乾燥薬味入り袋とした。傷痕群はフィルム幅方向
両端縁から、内側に配列されており、製袋工程、輸送、
保管中にフィルムが傷痕から破断するようなトラブルは
全くなく、使用時には袋の縦融着部の任意の部位から手
で開封することができた。又、充填後においても、輸送
中や取り扱い時に袋の縦融着部から不用意に破れること
はなかった。In each of the roll-shaped films obtained, scratches are arranged 0.75 mm inward from both edge lines in the width direction. Using this, an automatic bag-making filling machine was used to fill 3 g of dry seasonings for instant noodles into a three-side seal type dry seasoning bag. The scratches are arranged inward from both edges of the film in the width direction.
There was no trouble that the film was broken from the scratches during storage, and at the time of use, it was possible to open the film by hand from any part of the vertical fusion-bonded portion. Further, even after the filling, the bag was not torn carelessly from the vertical fusion-bonded portion of the bag during transportation or handling.
【００２９】実施例２ 幅７７０ｍｍ、基材層に延伸ナイロンフィルム（厚さ１
５μ）中間層に低密度ポリエチレンフィルム（厚さ２０
μ）、熱融着層にエチレン酢酸ビニル共重合体フィルム
（厚さ３５μ）を用いた複合フィルム（合計厚さ７０
μ）に実施例１と同じ加工ロール１３を用いて、フィル
ムの幅方向両端縁から１０ｍｍの部位と、そこから内側
に向かって２５０ｍｍの部位に合計４列の各傷痕群をフ
ィルムの長さ方向に線状に加工し、次いで傷痕群の中央
部を切断してロール状に巻き取り、３個の幅２５０ｍ
ｍ、長さ１０００ｍのロール状フィルムを得た。巻き取
り時、フィルムの端部に傷痕があるため若干耳高となる
も、特に支障なく巻き取ることができた。Example 2 Width 770 mm, stretched nylon film (thickness 1
5μ) Low density polyethylene film (thickness 20
μ), a composite film (total thickness 70) using an ethylene vinyl acetate copolymer film (thickness 35 μ) for the heat-sealing layer.
[mu]) using the same processing roll 13 as in Example 1, and a total of four rows of scratch groups were formed in a region of 10 mm from both widthwise edges of the film and a region of 250 mm inward from the region in the length direction of the film. Processed into a linear shape, then cut in the center of the scratches and wound into a roll, with three widths of 250 m
A roll-shaped film having a length of m and a length of 1000 m was obtained. At the time of winding, there was a scar on the edge of the film, which caused a slight ear height, but the film could be wound without any trouble.
【００３０】得られたロール状のフィルムは、いずれも
実施例１と同じくフィルム両端縁から０．７５ｍｍ内側
に傷痕群が配列されているもので、これを用いて自動製
袋充填機で生詰めこんにゃくを２５０ｇづつ充填しなが
らピロー型こんにゃく入り袋とし傷痕群はフィルム幅方
向両端縁線から、内側に配列されており、製袋工程、輸
送、保管中、フィルムに起因するトラブルは全くなく、
使用時には袋の縦融着部の任意の部位から手で開封する
ことができた。又、充填後においても輸送中や取り扱い
時に袋の縦融着部から不用意に破れることはなかった。Each of the roll-shaped films thus obtained had scratch groups arranged 0.75 mm inward from both edges of the film as in Example 1, and was used for raw filling in an automatic bag-making filling machine. While filling 250 g each of konjac and pillow type konjac bag and scratches group from the film width direction both edge lines, are arranged inside, bag-making process, transportation, during storage, there is no trouble caused by the film,
At the time of use, it was possible to open the bag manually from any part of the vertical fusion-bonded portion. Further, even after the filling, the bag was not torn carelessly from the vertical fusion-bonded portion of the bag during transportation or handling.
【００３１】比較例 加工ロール１３として、最大幅０．５ｍｍの図７に示す
突起を千鳥状に５列に配したものを用い、それ以外はす
べて実施例１と同様の加工を行なった。Comparative Example As the processing roll 13, the projections shown in FIG. 7 having a maximum width of 0.5 mm arranged in a zigzag pattern in five rows were used, and other than that, the same processing as in Example 1 was performed.
【００３２】得られたロール状のフィルムは、幅方向の
両端縁に傷痕群が付与されているものである。The roll-shaped film obtained has scars on both edges in the width direction.
【００３３】このロール状のフィルムを用いて、実施例
１と同様、乾燥薬味３ｇを自動製袋充填機で充填、製袋
した。しかし、フィルム端縁に傷痕があるため、フィル
ムの蛇行やテンションの変動等によってフィルム切れが
多発、機械稼働率の低下、フィルムロスの増加を生じ
た。又、充填後においても、輸送中や取り扱い時に袋の
縦融着部から不用意に破れるトラブルが頻発した。Using this roll-shaped film, as in Example 1, 3 g of dry seasonings were filled in an automatic bag-making filling machine to make bags. However, since there are scratches on the edges of the film, film breakage frequently occurs due to meandering of the film, fluctuations in tension, etc., causing a decrease in machine operation rate and an increase in film loss. Further, even after the filling, there was a frequent problem that the bag was inadvertently torn from the vertical fusion-bonded portion during transportation or handling.
【００３４】[0034]
【発明の効果】本発明によればフィルムの実用上の強度
を損なわずに接着部の任意の部位から手指の力で開封す
ることのできる密封袋を提供することができる。又、開
封の開始点となる傷痕群を千鳥形としたことにより、使
用するフィルムの性状に応じた適切な部位に確実に傷痕
群を設けることができる。EFFECTS OF THE INVENTION According to the present invention, it is possible to provide a sealed bag which can be opened from an arbitrary portion of the adhesive portion with the force of fingers without impairing the practical strength of the film. In addition, by making the scratches that are the starting point of opening the zigzag shape, it is possible to surely provide the scratches at an appropriate portion according to the properties of the film used.
【図１】フィルム端部の平面図FIG. 1 is a plan view of a film end portion.
【図２】破れる機構の説明図FIG. 2 is an explanatory diagram of a breaking mechanism.
【図３】同説明図FIG. 3 is an explanatory diagram of the same.
【図４】密封袋の斜視図FIG. 4 is a perspective view of a sealed bag.
【図５】同別の例の斜視図FIG. 5 is a perspective view of another example.
【図６】加工を施したフィルムの平面図FIG. 6 is a plan view of the processed film.
【図７】傷痕付設具の突起の拡大図FIG. 7 is an enlarged view of a protrusion of a scarring fixture.
【図８】加工ロール状傷痕付設具の斜視図FIG. 8 is a perspective view of a processing roll-shaped scarring attachment.
【図９】図１０の円周面の拡大平面図9 is an enlarged plan view of the circumferential surface of FIG.
【図１０】フィルムの加工の１例を示す説明図FIG. 10 is an explanatory diagram showing an example of film processing.
【図１１】傷痕群を千鳥形及び整列形としたときの切断
位置の説明図FIG. 11 is an explanatory diagram of cutting positions when the scratches are staggered and aligned.
【図１２】図１１に示す各切断位置において切断された
フィルムにおける傷痕部位の説明図12 is an explanatory view of a scratched portion in the film cut at each cutting position shown in FIG.
１ 傷痕 ２ 端縁線 ３，４ 先端 ５ 縦方向融着部 ８ フィルム １０ 突起 １１ 窪み １２ 切り込まれた面 １３ 加工ロール Ａ 傷痕群 1 Scratch 2 Edge line 3,4 Tip 5 Longitudinal fusion part 8 Film 10 Protrusion 11 Dimple 12 Cut surface 13 Processing roll A Scratch group
Claims (1)
て、該融着部端縁部の端縁線に対して横断方向に多数の
細長形状の傷痕を千鳥形に設けたことを特徴とする密封
袋。1. A hermetically sealed bag formed by fusing a film, wherein a large number of elongated scratches are provided in a zigzag shape in a transverse direction with respect to an edge line of the edge of the fused portion. And a sealed bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3306093A JP2731474B2 (en) | 1991-11-21 | 1991-11-21 | Sealed bag and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3306093A JP2731474B2 (en) | 1991-11-21 | 1991-11-21 | Sealed bag and its manufacturing method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25420784A Division JPS61142159A (en) | 1984-12-03 | 1984-12-03 | Sealed bag and film manufacturing said bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH068966A true JPH068966A (en) | 1994-01-18 |
| JP2731474B2 JP2731474B2 (en) | 1998-03-25 |
Family
ID=17952948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3306093A Expired - Lifetime JP2731474B2 (en) | 1991-11-21 | 1991-11-21 | Sealed bag and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2731474B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004035415A1 (en) * | 2002-10-16 | 2004-04-29 | Kabushiki Kaisha Hosokawa Yoko | Easily openable packaging bag |
| JP2006206186A (en) * | 2004-12-27 | 2006-08-10 | Aji Nihon Kk | Scar forming device |
| US7234286B2 (en) | 2004-12-27 | 2007-06-26 | Ajinihon K.K. | Method and system for manufacturing a package |
| JP2008260586A (en) * | 2008-07-15 | 2008-10-30 | Nishimura Chemical Co Ltd | Medicine wrapping machine, powder paper, and subdivided bag |
| WO2014132663A1 (en) * | 2013-03-01 | 2014-09-04 | Totai Co., Ltd. | Flexible film package bag |
| JP2015212089A (en) * | 2015-05-25 | 2015-11-26 | 大日本印刷株式会社 | Method for producing protrusion plate cylinder |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4722586B2 (en) | 2004-07-06 | 2011-07-13 | 株式会社ヤクルト本社 | Overwrap package |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5151930A (en) * | 1974-11-01 | 1976-05-07 | Fujiki Denki Kk | DENKIONKYOHENKANKYOSHINDOBANNO SEIZOHOHO |
| JPS577519A (en) * | 1980-06-17 | 1982-01-14 | Toshiba Corp | Liquid level gauge |
| JPS58160251A (en) * | 1982-03-03 | 1983-09-22 | 旭化成株式会社 | Sealed subdividing bag and its manufacture |
-
1991
- 1991-11-21 JP JP3306093A patent/JP2731474B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5151930A (en) * | 1974-11-01 | 1976-05-07 | Fujiki Denki Kk | DENKIONKYOHENKANKYOSHINDOBANNO SEIZOHOHO |
| JPS577519A (en) * | 1980-06-17 | 1982-01-14 | Toshiba Corp | Liquid level gauge |
| JPS58160251A (en) * | 1982-03-03 | 1983-09-22 | 旭化成株式会社 | Sealed subdividing bag and its manufacture |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004035415A1 (en) * | 2002-10-16 | 2004-04-29 | Kabushiki Kaisha Hosokawa Yoko | Easily openable packaging bag |
| JP2006206186A (en) * | 2004-12-27 | 2006-08-10 | Aji Nihon Kk | Scar forming device |
| US7234286B2 (en) | 2004-12-27 | 2007-06-26 | Ajinihon K.K. | Method and system for manufacturing a package |
| JP4727321B2 (en) * | 2004-12-27 | 2011-07-20 | 味日本株式会社 | Scar device |
| JP2008260586A (en) * | 2008-07-15 | 2008-10-30 | Nishimura Chemical Co Ltd | Medicine wrapping machine, powder paper, and subdivided bag |
| WO2014132663A1 (en) * | 2013-03-01 | 2014-09-04 | Totai Co., Ltd. | Flexible film package bag |
| JP2015212089A (en) * | 2015-05-25 | 2015-11-26 | 大日本印刷株式会社 | Method for producing protrusion plate cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2731474B2 (en) | 1998-03-25 |
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