JPH05147660A - Film for easily openable packaging bag, and easily openable packaging bag thereof - Google Patents
Film for easily openable packaging bag, and easily openable packaging bag thereofInfo
- Publication number
- JPH05147660A JPH05147660A JP31466991A JP31466991A JPH05147660A JP H05147660 A JPH05147660 A JP H05147660A JP 31466991 A JP31466991 A JP 31466991A JP 31466991 A JP31466991 A JP 31466991A JP H05147660 A JPH05147660 A JP H05147660A
- Authority
- JP
- Japan
- Prior art keywords
- bag
- surface side
- packaging bag
- linear groove
- side portion
- 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
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 55
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 16
- 239000000057 synthetic resin Substances 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000012793 heat-sealing layer Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Landscapes
- Wrappers (AREA)
- Bag Frames (AREA)
- Packages (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、合成樹脂層を含む包
装袋用積層フィルムのその合成樹脂層に、連続線状もし
くは破線状の線状溝を形成してなる易開封性包装袋用フ
ィルムおよび易開封性包装袋に関し、とくに、袋の開封
後におけるその口開きを容易ならしめるものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film for an easily openable packaging bag, which comprises a laminated film for a packaging bag containing a synthetic resin layer, in which a continuous linear or broken linear groove is formed. In addition, the present invention relates to an easy-open packaging bag, in particular, to facilitate opening of the bag after opening the bag.
【０００２】[0002]
【従来の技術】従来の易開封性包装袋としては、たとえ
ば実公昭３９−６０７３号公報に開示されたようなもの
がある。このものは、内層の合成樹脂フィルムと外層の
熱着性補強材とを熱接着したシート材により構成されて
おり、外層の熱着性補強材にのみ開封予定個所にミシン
目加工を施したものであり、かかる包装袋ではミシン目
の切り裂き誘導作用の下で、指定位置より適確に袋を破
り裂くことができる。2. Description of the Related Art As a conventional easy-open packaging bag, for example, there is one disclosed in Japanese Utility Model Publication No. 39-6073. This product is composed of a sheet material in which the inner layer synthetic resin film and the outer layer heat-adhesive reinforcement material are heat-bonded, and only the outer layer heat-adhesion reinforcement material is perforated at the planned opening point. Therefore, in such a packaging bag, the bag can be accurately torn from the designated position under the perforation inducing action.
【０００３】[0003]
【発明が解決しようとする課題】ところが、かかる従来
技術にあっては、ミシン目加工が、袋の表面側部分およ
び裏面側部分のそれぞれに対し、相対的に同一の箇所に
施されていて、表裏のそれぞれの面部分で、ミシン目加
工部分がその全長にわたって相互に完全に重なり合って
位置することから、袋を、そのミシン目に従って破り裂
いて開封した場合に、表面側部分の裂き口と、裏面側部
分の裂き口とがともに同一の面内に整列して位置するこ
とになる。However, in such a conventional technique, perforation processing is performed on the front surface side portion and the back surface side portion of the bag at relatively the same location, In each of the front and back surface portions, since the perforated portion is completely overlapped with each other over its entire length, when the bag is torn and opened according to the perforations, the tear on the surface side portion, and Both the slits on the back surface side are aligned and located in the same plane.
【０００４】これがため、袋の開封後に、それを裂き口
から口開きして内容物を取出すに当って、いずれか一方
の裂き口に対する指掛かりがなくて、それぞれの裂き口
を、表面側および裏面側のそれぞれの方向に引き離すこ
とが困難である不都合があった。For this reason, after opening the bag, when opening the bag from the tear opening and taking out the contents, there is no finger cling to one of the tear openings, and each tear opening is placed on the surface side and There is an inconvenience that it is difficult to separate the back side in each direction.
【０００５】この発明は、従来技術の有するこのような
問題点を解決することを課題として検討した結果なされ
たものであり、それの目的とするところは、袋の開封後
におけるそれの口開きを極めて容易ならしめる、易開封
性包装袋用フィルムおよび易開封性包装袋を提供するに
ある。The present invention has been made as a result of studies aimed at solving such problems of the prior art, and its purpose is to open the mouth of the bag after opening it. An object is to provide a film for an easily openable packaging bag and an easily openable packaging bag that can be extremely easily manufactured.
【０００６】[0006]
【課題を解決するための手段】この発明の易開封性包装
袋用フィルムは、一層以上の合成樹脂層を含み、幅方向
もしくは長さ方向の中央部の折返し位置からの折返し状
態で、袋の表面側部分および裏面側部分をそれぞれ形成
する包装袋用積層フィルムであって、少なくとも一層の
合成樹脂層に、前記折返し位置に対して線対称とならず
に延在する少なくとも一本の、破線状もしくは連続線状
の線状溝を設け、前記表面側部分および裏面側部分のそ
れぞれに延在する線状溝部分を、折返し姿勢の表面側部
分および裏面側部分の、少なくとも一方の側端縁で、好
ましくは、両側端縁およびその近傍部分で、相互に重な
り合わせて位置させたものである。A film for an easily-openable packaging bag according to the present invention includes at least one synthetic resin layer, and is formed by folding a bag in a folded state from a folded position at a central portion in a width direction or a length direction. A laminated film for a packaging bag that forms a front surface side portion and a back surface side portion, respectively, in at least one synthetic resin layer, at least one that extends without being line-symmetric with respect to the folding position, and has a broken line shape Alternatively, a continuous linear groove is provided, and a linear groove portion extending to each of the front surface side portion and the back surface side portion is formed on at least one side edge of the front surface side portion and the back surface side portion in the folded posture. Preferably, they are positioned so as to overlap each other at both side edges and the vicinity thereof.
【０００７】また、この発明の易開封性包装袋は、合成
樹脂層を具える包装用積層フィルムを折返して形成した
表面側部分および裏面側部分のそれぞれを相互にヒート
シールしてなり、表面側部分および裏面側部分のそれぞ
れの、少なくとも一層の合成樹脂層に、袋の引き裂き誘
導線としての線状溝を形成したところにおいて、表面側
部分に形成した線状部分と、裏面側部分に形成した線状
溝部分とを、少なくとも、袋の幅方向の中央部分で、相
互に重なり合わせることなく位置させたものである。The easy-open packaging bag of the present invention is formed by folding back a laminated film for packaging having a synthetic resin layer, and heat-sealing each of the front surface side portion and the back surface side portion, A linear groove formed as a tearing guide line of the bag was formed in at least one synthetic resin layer of each of the portion and the back surface side, and the linear portion formed on the front surface side portion and the back surface side portion were formed. The linear groove portion is located at least in the widthwise central portion of the bag without overlapping with each other.
【０００８】ここで好ましくは、それぞれの線状溝部分
を、袋の少なくとも一方の側端縁、より好ましくは、袋
の両側端縁およびその近傍部分で、相互に重なり合わせ
て位置させる。Here, it is preferable that the respective linear groove portions are positioned so as to overlap each other at at least one side edge of the bag, more preferably at both side edges of the bag and the vicinity thereof.
【０００９】[0009]
【作用】この発明の易開封性包装袋用フィルムでは、そ
れを折返し位置から折返した状態で、表裏のそれぞれの
面部分をたとえばヒートシールによって相互に融着させ
て製袋することにより、この発明に係る易開封性包装袋
が製造されることになり、この包装袋では、引き裂き誘
導線としての線状溝の、表面側部分に位置する線状溝部
分と、裏面側部分に位置する線状溝部分とが、少なくと
も、袋の幅方向の中央部分では、相互に重なり合うこと
なく延在するので、袋の開封に際し、それらのそれぞれ
の溝部分を辿って進行するそれぞれの裂け口は、これも
袋の幅方向の中央部分にて相互に異なった位置に延在し
て、それぞれの裂け口の、袋の底部分からの距離が相互
に異なったものとなる。In the film for an easily-openable packaging bag of the present invention, in the state where it is folded back from the folding position, the respective surface portions of the front and back are fused to each other by, for example, heat sealing to form the bag. According to the present invention, an easily-openable packaging bag according to the present invention will be manufactured. In this packaging bag, a linear groove portion at the front surface side portion and a linear groove portion at the rear surface side portion of the linear groove as the tear guide wire are Since the groove portion extends at least in the widthwise central portion of the bag without overlapping with each other, the respective tears that proceed through the respective groove portions when opening the bag, Extending in mutually different positions in the widthwise central portion of the bag, the distances of the respective crevices from the bottom portion of the bag are different from each other.
【００１０】従って、袋の開封後におけるそれの口開き
に当っては、袋の底部からの距離が大きい側の裂け口に
指を掛けて、それを表面側もしくは裏面側へ引張ること
により、その口開きを極めて容易に、かつ迅速に行うこ
とができる。Therefore, when opening the bag after opening the bag, by putting a finger on the tear opening on the side where the distance from the bottom of the bag is large and pulling it toward the front surface or the back surface, It is possible to open the mouth very easily and quickly.
【００１１】また、易開封性包装袋用フィルムにおい
て、表面側部分および裏面側部分のそれぞれに延在する
線状溝部分を、折返し姿勢の表面側部分および裏面側部
分の、少なくとも一方の側端縁で、相互に重なり合わせ
て位置させることにより、それを製袋して袋としたとき
も、袋の少なくとも一側縁にては、線状溝部分が相互に
重なり合って位置することになるので、その側縁から手
指による袋の引き裂きを行うことによって、開封の開始
の容易性を十分に担保することができる。In the film for an easy-open packaging bag, the linear groove portions extending in the front surface side portion and the back surface side portion are provided with at least one side end of the front surface side portion and the back surface side portion in the folded posture. By locating the edges so as to overlap each other, even when the bag is formed into a bag, the linear groove portions are positioned to overlap each other on at least one side edge of the bag. By tearing the bag from the side edge of the bag with fingers, the ease of opening the bag can be sufficiently ensured.
【００１２】なお、上述したところにおいて線状溝は、
連続線状をなすものの他、破線状をなすものであっても
よく、また、連続線状をなす線状溝であって、その溝
に、深部と浅部もしくは、広幅部と狭幅部とを交互に設
けたものであってもよい。Incidentally, in the above-mentioned place, the linear groove is
In addition to a continuous linear shape, a broken line shape may be used, and a continuous linear groove having a deep portion and a shallow portion or a wide portion and a narrow portion. May be provided alternately.
【００１３】ところで、袋の表面側部分と裏面側部分と
に形成されるそれぞれの線状溝部分は、それらの両者の
間隔が大きくなりすぎると、袋の開封性が悪くなるの
で、その間隔は、包装袋用フィルムの積層構造、袋の口
開きのし易さなどとの関連において選択することが好ま
しい。By the way, regarding the respective linear groove portions formed on the front surface side portion and the back surface side portion of the bag, if the distance between them is too large, the unsealing property of the bag deteriorates. It is preferable to select it in relation to the laminated structure of the film for the packaging bag, the ease of opening the bag, and the like.
【００１４】[0014]
【実施例】以下にこの発明の実施例を図面に基づいて説
明する。図１はこの発明の易開封性包装袋用フィルムを
例示する平面図である。この例の包装袋用フィルム１
は、図の上下方向に連続する長尺帯状体から裁断した一
袋分のフィルムを示し、多くは、熱融着層を含む二層以
上の合成樹脂層を具える積層フィルムによりなる。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view illustrating a film for an easy-open packaging bag of the present invention. Film 1 for packaging bag of this example
Shows a film for one bag cut from a long strip continuous in the vertical direction of the figure, and most of them are laminated films having two or more synthetic resin layers including a heat-sealing layer.
【００１５】この包装袋用フィルム１では、それをその
幅方向の中央部に折返し位置×−×から折返すことによ
って、たとえば、図の左半部２に対して右半部３をその
背面側に位置させて、それらの両半部の２、３の熱融着
層を相互に対向させることにより、図の左半部２が袋の
表面側部分を、そして右半部３が袋の裏面側部分をそれ
ぞれ形成する。In this packaging bag film 1, by folding it back from the folding position X--X to the central portion in the width direction, for example, the right half portion 3 with respect to the left half portion 2 in the drawing is placed on the back side thereof. By placing the heat-sealing layers of the two halves facing each other, the left half 2 of the figure is the front side of the bag and the right half 3 is the back of the bag. Form each side portion.
【００１６】かかる包装袋用フィルム１において、ここ
では、左半部２の少なくとも一層合成樹脂層、たとえ
ば、折返し姿勢で最も外側に位置するベースフィルム層
に、折返し位置×−×と直行する方向にのびる、直線状
の線状溝部分４を、その左半部２の全幅にわたって形成
し、そして、右半部３の、これもたとえばベースフィル
ム層に、上方に向けて凸状となる円弧状の線状溝部分５
を、その右半部３の全幅にわたって形成して、その円弧
状の線状溝部分５の左右の端縁をそれぞれ、直線状の線
状溝部分上およびその延長線状に位置させる。In such a packaging bag film 1, here, at least one synthetic resin layer of the left half portion 2, for example, a base film layer positioned on the outermost side in the folded posture is arranged in a direction orthogonal to the folded position XX. A linear groove portion 4 extending straight is formed over the entire width of the left half portion 2, and the right half portion 3, which is also in the base film layer, has an arcuate shape that is convex upward. Linear groove part 5
Are formed over the entire width of the right half portion 3, and the left and right edges of the arc-shaped linear groove portion 5 are respectively positioned on the linear linear groove portion and its extended line.
【００１７】このような構成とすることにより、包装袋
用フィルム１の図示のような展開状態においては、それ
ぞれの線状溝部分４、５からなる線状溝６は、折返し位
置×−×に対して線対称とならずに延在し、また、その
包装袋用フィルムの折返し姿勢の下では、それぞれの線
状溝部分４、５は、左右の各半部２、３の両方の側端縁
位置でのみ、相互に重なり合って位置することになる。With such a configuration, when the packaging bag film 1 is in the unfolded state as shown in the drawing, the linear grooves 6 made up of the respective linear groove portions 4 and 5 are located at the folded-back positions XX. With respect to the packaging bag film, the linear groove portions 4 and 5 extend on both sides of the left and right halves 2 and 3 without being symmetrical with respect to each other. Only at the edge positions will they be located on top of each other.
【００１８】なお、それぞれの線状溝部分４、５、ひい
ては線状溝６は、製袋作業の開始前の段階で、合成樹脂
層にレーザービームの照射を行って、樹脂分の融解蒸発
をもたらすことによって極めて容易に、かつ迅速に形成
することができ、しかも、溝深さ、溝幅などをもまた所
要に応じて瞬時に変更することができる。Each of the linear groove portions 4, 5 and by extension, the linear groove 6 is irradiated with a laser beam on the synthetic resin layer before the start of the bag-making work to melt and evaporate the resin component. By providing it, it can be formed extremely easily and quickly, and the groove depth, groove width, etc. can also be changed instantaneously as required.
【００１９】従って、ここでいう線状溝部分４、５およ
び線状溝６には、連続線状をなすもののみならず、破線
状をなすものをも含むものとし、また、連続線状をなす
もののうちには、溝深さが交互に深浅となるものおよ
び、溝幅が交互に広狭となるものをも含むものとする。Therefore, the linear groove portions 4 and 5 and the linear groove 6 referred to herein include not only those having a continuous line shape but also those having a broken line shape, and also have a continuous line shape. Among the materials, those in which the groove depth is alternately shallow and those in which the groove width is alternately wide and narrow are included.
【００２０】図２は、上述したようにして線状溝６を形
成した包装袋用フィルム１を折返し位置×−×からの折
返し状態で、それの左右の各半部２、３、いいかえれ
ば、表面側部分と裏面側部分とを、折返し位置を除く他
の三辺部分で相互にヒートシールすることによって包装
袋としたものであり、この包装袋では、左半部２に形成
した直線状の線状溝部分４と、右半部３に形成した円弧
状の線状溝部分５とは、袋の幅方向の大部分にわたっ
て、相互に重なり合うことなく位置する一方、袋の両方
の側端縁においてのみ相互に重なり合って位置すること
になる。FIG. 2 shows a state in which the packaging bag film 1 having the linear grooves 6 formed as described above is folded back from the folding position XX, and the left and right halves 2 and 3 thereof, in other words, The front surface side portion and the back surface side portion are heat sealed to each other at the other three sides except for the folding position to form a packaging bag. In this packaging bag, the linear bag formed on the left half portion 2 is formed. The linear groove portion 4 and the arc-shaped linear groove portion 5 formed in the right half portion 3 are positioned without overlapping each other over most of the widthwise direction of the bag, while both side edges of the bag are provided. Only at and will they overlap each other.
【００２１】それ故、この包装袋の開封は、その側端縁
の、それぞれの線状溝部分４、５が相互に重なり合って
位置するいずれか一方の部分を隔てて、左右の手指で袋
の側端部を摘み、そしてその状態で引き裂きを開始する
ことによって、それらの各線状溝部分４、５の作用下
で、極めて容易に、かつ円滑に行われることになり、図
３に示すように、袋の表面側部分は線状溝部分４を辿っ
て、また裏面側部分は線状溝部分５を辿ってそれぞれ破
断されることになる。従って、袋の開封後においては、
線状溝部分５を辿って進行した裏面側部分の裂き口を指
掛かりとして袋を口開きすることにより、その口開き
を、これもまた極めて容易に行うことができる。Therefore, when opening the packaging bag, the side edges of the bag are separated by one of the left and right fingers, with either one of the linear groove portions 4 and 5 positioned overlapping each other. By picking the side ends and initiating the tearing in that state, it is extremely easy and smooth under the action of each of the linear groove portions 4 and 5, and as shown in FIG. The front side portion of the bag follows the linear groove portion 4 and the back side portion follows the linear groove portion 5, and is broken. Therefore, after opening the bag,
By opening the bag with the tear on the back side portion that has advanced along the linear groove portion 5 as a finger hook, the opening of the bag can also be performed very easily.
【００２２】なお、図２に示す包装袋において、とく
に、それのヒートシールを施した側端部側から袋の引き
裂きを開始する場合には、それぞれの線状溝部分４、５
を、ヒートシール幅のほぼ全体にわたって重なり合わせ
て位置させることが好ましく、このことにより、袋の引
き裂きの開始を一層容易ならしめることができる。In the packaging bag shown in FIG. 2, particularly when the tearing of the bag is started from the heat-sealed side end side, the respective linear groove portions 4, 5 are formed.
Are preferably overlapped over substantially the entire width of the heat seal, which makes it easier to initiate the tearing of the bag.
【００２３】図４は、包装袋用フィルムの他の実施例を
示す図であり、図４（ａ）に示す例は、折返し位置×−
×に対して線対称とならないように形成した線状溝６
の、図の左半部２にのびる線状溝部分４ａを、その折返
し位置×−×に実質的に直交する方向に向く直線状とす
る一方、右半部３にのびる線状溝部分５ａを、平坦なピ
ークを有する山形折線状とし、さらに、山形折線状溝部
分の左右の端縁をそれぞれ、直線状の線状溝部分４ａお
よび延長線上に位置させたものである。FIG. 4 is a view showing another embodiment of the film for packaging bag, and the example shown in FIG.
Linear groove 6 formed so as not to be line symmetrical with respect to x
Of the linear groove portion 4a extending to the left half portion 2 of the drawing is linearly oriented in a direction substantially orthogonal to the folding position XX, while the linear groove portion 5a extending to the right half portion 3 is formed. The mountain-shaped bent line having a flat peak is formed, and the left and right edges of the mountain-shaped bent line groove portion are respectively positioned on the linear linear groove portion 4a and the extension line.
【００２４】また、図４（ｂ）に示す例は、線状溝部分
４ｂ、５ｂのそれぞれを、相互に逆方向に凸状となる円
弧形状とするとともに、折返し位置×−×からの折返し
姿勢で、左右の各半部２、３のそれぞれの線状溝部分４
ｂ、５ｂのそれぞれの側端縁で相互に重なり合う用位置
させたものである。Further, in the example shown in FIG. 4 (b), each of the linear groove portions 4b and 5b has an arcuate shape which is convex in the opposite direction, and the folding posture from the folding position XX Then, the respective linear groove portions 4 of the left and right halves 2 and 3
b and 5b are positioned so as to overlap each other at their side edges.
【００２５】この例に示す包装袋用フィルム１もまた、
それをたとえば三方シール、四方シールなどによって包
装袋に製袋した場合には、図２について述べたと同様、
それぞれの線状溝部分４ａ、４ｂおよび５ａ、５ｂの作
用下で、袋の開封を容易かつ円滑なものとすることがで
き、また、それらの線状溝部分相互の延在形状に基づ
き、袋の開封後の口開きをもまた極めて容易なものとす
ることができる。The packaging bag film 1 shown in this example is also
When it is formed into a packaging bag by, for example, a three-sided seal or a four-sided seal, the same as described in FIG.
Under the action of the respective linear groove portions 4a, 4b and 5a, 5b, opening of the bag can be made easy and smooth, and, based on the extending shape of these linear groove portions, the bag is The mouth opening after opening can also be made extremely easy.
【００２６】なおここで、図１に示す包装袋用フィルム
をも含めて、図の左半部２に形成される線状溝部分と、
右半部３に形成される線状溝部分との図の上下方向の相
対距離を大きくしすぎると、袋の開封の容易性が損なわ
れることになるので、その相対距離は、袋の開封後にお
ける指掛かりを確保するに必要にして最小限のもとする
ことが好ましい。Here, including the packaging bag film shown in FIG. 1, the linear groove portion formed in the left half portion 2 of the figure,
If the relative distance between the linear groove portion formed in the right half portion 3 and the vertical direction in the figure is too large, the ease of opening the bag will be impaired. It is preferable to make the minimum necessary and necessary to secure the finger hook in.
【００２７】図５は、包装袋用フィルムのさらに他の例
を示す図であり、これは、前述した各実施例に比し、折
返し状態とした場合の、表裏両面部分のそれぞれの線状
溝部分の、相互に重なり合う長さを長くしたものであ
る。FIG. 5 is a view showing still another example of the film for packaging bag, which is different from the above-mentioned respective examples in the linear grooves on both the front and back surfaces in the folded state. The length of overlapping parts is increased.
【００２８】図５（ａ）に示す例は、図１に示すところ
において、右半部３の線状溝部分５の両端部分に、左半
部２の線状溝部分４に重なり合う直線状部分を設けたも
のに相当し、図５（ｂ）に示す例は、図４（ａ）に示す
ところにおいて、右半部３の線状溝部分５ａの両端部分
に、同様に、左半部２の線状溝部分４ａに重なり合う直
線状部分を設けたものに相当し、そして、図５（ｃ）に
示す例は、図４（ｂ）に示すところにおいて、左右各半
部２、３のそれぞれの線状溝部分４ｂ、５ｂの両端部分
に、相互に重なり合って位置する直線状部分を設けたも
のに相当する。In the example shown in FIG. 5 (a), the linear portion overlapping the linear groove portion 4 of the left half portion 2 on both ends of the linear groove portion 5 of the right half portion 3 in the position shown in FIG. 5B, the example shown in FIG. 5B is similar to the left half 2 at both end portions of the linear groove portion 5a of the right half 3 in the example shown in FIG. 4A. The linear groove portion 4a of FIG. 4 is provided with a linear portion that overlaps with the linear groove portion 4a, and the example shown in FIG. 5C is similar to that shown in FIG. 4B. This is equivalent to the linear groove portions 4b and 5b provided with linear portions which are positioned so as to overlap each other.
【００２９】これらの包装袋用フィルム１によれば、そ
れらを製袋して包装袋とした場合に、袋のいずれの側端
縁からも開封を開始し得ることはもちろん、とくには、
それぞれの線状溝部分相互の重なり長さが長いことによ
り、上述したいずれの包装袋用フィルムよりも開封の開
始を容易ならしめることができる。According to these films 1 for packaging bags, when they are made into a packaging bag, the opening can be started from any side edge of the bag, and in particular,
Since the overlapping lengths of the respective linear groove portions are long, it is possible to start the opening more easily than any of the above-mentioned packaging bag films.
【００３０】図６（ａ）に示し実施例は、線状溝６を、
それの、折返し位置×−×に対する交角が、９０°に近
い鋭角となるように直線状に延在させたものであり、こ
の例によれば、折返し状態とした表裏のそれぞれの面部
分のそれぞれの線状溝部分は、折返し位置でだけ相互に
重なり合うことになる。In the embodiment shown in FIG. 6 (a), the linear groove 6 is
The intersection angle with respect to the folding position XX is linearly extended so as to form an acute angle close to 90 °, and according to this example, each surface portion of the front and back surfaces in the folded state is The linear groove portions of will overlap each other only at the folded position.
【００３１】図６（ｂ）に示す例は、図の左半部２の線
状溝部分４ｃを、図１に示す線状溝部分４と同様の直線
状とし、右半部３の線状溝部分５ｃを、図では右下りに
のびる直線状とし、そして、この線状溝部分５ｃの右端
を、線状溝部分４ｃの左端と重なり合う位置に位置させ
たものである。なお図に示すところでは、線状溝部分４
ｃの右端と線状溝部分５ｃの左端とを、折返し位置×−
×の上にのびる溝部分７によって相互に連続させている
が、その溝部分７を省くことによって、両線状部分４
ｃ、５ｃを相互に不連続とすることも可能である。In the example shown in FIG. 6 (b), the linear groove portion 4c of the left half portion 2 in the figure is made into the same linear shape as the linear groove portion 4 shown in FIG. The groove portion 5c is a straight line extending downward to the right in the figure, and the right end of the linear groove portion 5c is located at a position overlapping the left end of the linear groove portion 4c. In the figure, the linear groove portion 4
The right end of c and the left end of the linear groove portion 5c are folded back position x-
The groove portions 7 extending above the cross are continuous with each other, but by omitting the groove portions 7, both linear portions 4
It is also possible that c and 5c are discontinuous with each other.
【００３２】これらの包装袋用フィルムを用いて製袋し
たときは、表裏のそれぞれの面部分のそれぞれの線状溝
部分は、袋の一方の側縁で相互に重なり合うことから、
その側縁から袋の開封を行うことによって、図２に示す
包装袋と同様の効果をもたらすことができる。When a bag is made using these packaging bag films, the linear groove portions of the front and back surface portions overlap each other at one side edge of the bag.
By opening the bag from its side edge, the same effect as that of the packaging bag shown in FIG. 2 can be obtained.
【００３３】以上この発明を図示例に基づいて説明した
が、線状溝を、フィルムの中間層としての合成樹脂層に
形成することもできる。そして以上のことは、長さ方向
の中央部にて折返して用いる包装袋用フィルムにも同様
に適用することができる。Although the present invention has been described with reference to the illustrated example, the linear groove may be formed in the synthetic resin layer as the intermediate layer of the film. And the above can be similarly applied to the film for a packaging bag which is folded back at the central portion in the length direction.
【００３４】[0034]
【発明の効果】かくして、この発明によれば、包装袋の
易開封性を十分に確保し得ることはもちろん、袋の開封
後におけるそれの口開きのための指掛かりをもたらし
て、その口開きを極めて容易なものとすることができ
る。As described above, according to the present invention, not only the ease of opening the packaging bag can be sufficiently ensured, but also a finger hook for opening the bag after opening the bag is provided to open the bag. Can be extremely easy.
【図１】この発明の包装袋用フィルムを例示する図であ
る。FIG. 1 is a diagram illustrating a film for a packaging bag according to the present invention.
【図２】この発明の包装袋を例示する図である。FIG. 2 is a diagram illustrating a packaging bag of the present invention.
【図３】開封後の包装袋を例示する図である。FIG. 3 is a diagram illustrating a packaging bag after opening.
【図４】包装袋用フィルムの他の例を示す図である。FIG. 4 is a diagram showing another example of a packaging bag film.
【図５】包装袋用フィルムの他の例を示す図である。FIG. 5 is a diagram showing another example of a packaging bag film.
【図６】包装袋用フィルムのさらに他の例を示す図であ
る。FIG. 6 is a view showing still another example of the packaging bag film.
１ 包装袋用フィルム ２ 左半部 ３ 右半部 ４、４ａ、４ｂ、４ｃ、５、５ａ、５ｂ、５ｃ 線状溝
部分 ６ 線状溝 ×−× 折返し位置1 Film for packaging bag 2 Left half part 3 Right half part 4, 4a, 4b, 4c, 5, 5a, 5b, 5c Linear groove part 6 Linear groove x-x folding position
Claims (2)
方向もしくは長さ方向の中央部の折返し位置からの折返
し状態で、袋の表面側部分および裏面側部分をそれぞれ
形成する包装袋用積層フィルムであって、 少なくとも一層の合成樹脂層に、前記折返し位置に対し
て線対称とならずに延在する線状溝を設け、前記表面側
部分および裏面側部分のそれぞれにのびる線状溝部分
を、折返し姿勢の表面側部分および裏面側部分の、少な
くとも一方の側端縁で、相互に重なり合わせて位置させ
てなる易開封性包装袋用フィルム。1. A laminated film for a packaging bag, comprising at least one synthetic resin layer, and forming a front side portion and a back side portion of a bag, respectively, in a folded state from a folded position at a central portion in a width direction or a length direction. In that, at least one synthetic resin layer is provided with linear grooves extending without being line-symmetric with respect to the folding position, and linear groove portions extending to the front surface side portion and the back surface side portion are formed. A film for an easy-open packaging bag, which is located by overlapping at least one side edge of the front side portion and the back side portion in the folded posture so as to overlap each other.
装用積層フィルムを折返して形成した表面側部分および
裏面側部分のそれぞれを相互にヒートシールしてなり、
表面側部分および裏面側部分のそれぞれの、少なくとも
一層の合成樹脂層に線状溝部分を形成してなる易開封性
包装袋であって、 表面側部分に形成した線状部分と、裏面側部分に形成し
た線状溝部分とを、少なくとも、袋の幅方向の中央部分
で、相互に重なり合わせることなく位置させてなる易開
封性包装袋。2. A front surface side portion and a back surface side portion formed by folding back a packaging laminated film having at least one synthetic resin layer and heat-sealing each other,
An easy-open packaging bag having linear groove portions formed on at least one synthetic resin layer on each of the front surface side portion and the back surface side portion, wherein the linear portion formed on the front surface side portion and the back surface side portion An easily-openable packaging bag in which the linear groove portion formed in the above is positioned at least in the widthwise central portion of the bag without overlapping each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31466991A JP2919661B2 (en) | 1991-11-28 | 1991-11-28 | Easy-open packaging film and easy-open packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31466991A JP2919661B2 (en) | 1991-11-28 | 1991-11-28 | Easy-open packaging film and easy-open packaging bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05147660A true JPH05147660A (en) | 1993-06-15 |
| JP2919661B2 JP2919661B2 (en) | 1999-07-12 |
Family
ID=18056124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31466991A Expired - Lifetime JP2919661B2 (en) | 1991-11-28 | 1991-11-28 | Easy-open packaging film and easy-open packaging bag |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2919661B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000229649A (en) * | 1999-02-12 | 2000-08-22 | Omori Mach Co Ltd | Packaged body with fastener |
| JP2001097348A (en) * | 1999-09-29 | 2001-04-10 | Omori Mach Co Ltd | Deep drawing type packaging member |
| JP2001240074A (en) * | 2000-02-29 | 2001-09-04 | Teikoku Seiyaku Co Ltd | Packaging bag for external pasting medicine |
| JP2005289407A (en) * | 2004-03-31 | 2005-10-20 | Dainippon Printing Co Ltd | Packaging bag |
| JP2005289396A (en) * | 2004-03-31 | 2005-10-20 | Dainippon Printing Co Ltd | Packaging bag |
| JP2012136259A (en) * | 2010-12-27 | 2012-07-19 | Fuji Tokushu Shigyo Kk | Opening structure as easy-to-open structure prepared in pillow-packaged bag |
| JP2014051296A (en) * | 2012-09-06 | 2014-03-20 | Toppan Printing Co Ltd | Packaging bag and method for manufacturing the same |
| US20150353237A1 (en) * | 2013-01-18 | 2015-12-10 | Bemis Company, Inc. | Tear-Open Pouch for Fragile Thin Materials |
| JP2020066442A (en) * | 2018-10-23 | 2020-04-30 | 凸版印刷株式会社 | Packaging bag |
-
1991
- 1991-11-28 JP JP31466991A patent/JP2919661B2/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000229649A (en) * | 1999-02-12 | 2000-08-22 | Omori Mach Co Ltd | Packaged body with fastener |
| JP2001097348A (en) * | 1999-09-29 | 2001-04-10 | Omori Mach Co Ltd | Deep drawing type packaging member |
| JP2001240074A (en) * | 2000-02-29 | 2001-09-04 | Teikoku Seiyaku Co Ltd | Packaging bag for external pasting medicine |
| JP2005289407A (en) * | 2004-03-31 | 2005-10-20 | Dainippon Printing Co Ltd | Packaging bag |
| JP2005289396A (en) * | 2004-03-31 | 2005-10-20 | Dainippon Printing Co Ltd | Packaging bag |
| JP2012136259A (en) * | 2010-12-27 | 2012-07-19 | Fuji Tokushu Shigyo Kk | Opening structure as easy-to-open structure prepared in pillow-packaged bag |
| JP2014051296A (en) * | 2012-09-06 | 2014-03-20 | Toppan Printing Co Ltd | Packaging bag and method for manufacturing the same |
| US20150353237A1 (en) * | 2013-01-18 | 2015-12-10 | Bemis Company, Inc. | Tear-Open Pouch for Fragile Thin Materials |
| US10071833B2 (en) * | 2013-01-18 | 2018-09-11 | Bemis Company, Inc. | Tear-open pouch for fragile thin materials |
| JP2020066442A (en) * | 2018-10-23 | 2020-04-30 | 凸版印刷株式会社 | Packaging bag |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2919661B2 (en) | 1999-07-12 |
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