WO1995018753A1 - Easily openable, heat shrinkable package - Google Patents

Easily openable, heat shrinkable package Download PDF

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Publication number
WO1995018753A1
WO1995018753A1 PCT/JP1995/000016 JP9500016W WO9518753A1 WO 1995018753 A1 WO1995018753 A1 WO 1995018753A1 JP 9500016 W JP9500016 W JP 9500016W WO 9518753 A1 WO9518753 A1 WO 9518753A1
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WO
WIPO (PCT)
Prior art keywords
film
heat
package
opening
shrinkable
Prior art date
Application number
PCT/JP1995/000016
Other languages
French (fr)
Japanese (ja)
Inventor
Mitsuyuki Yanase
Original Assignee
Grace Japan Kabushiki Kaisha
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 Grace Japan Kabushiki Kaisha filed Critical Grace Japan Kabushiki Kaisha
Priority to KR1019960702612A priority Critical patent/KR960705724A/en
Publication of WO1995018753A1 publication Critical patent/WO1995018753A1/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
    • B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
    • B65D71/06—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers
    • B65D71/08—Wrappers shrunk by heat or under tension, e.g. stretch films or films tensioned by compressed articles
    • 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
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • 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
    • B65D75/002—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 in shrink films

Definitions

  • the present invention relates to a heat-shrinkable package that can be easily opened.
  • a package is placed in a heat-shrinkable synthetic resin film formed in a bag shape or a half-fold shape, and the edge of the film is melt-sealed. Performed heat shrink wrapping is commonly performed.
  • Such heat-shrinkable packaging has become popular because of its advantages, such as the appearance of the packaged item, that is, the appearance of the product, which is beautiful and clear, and the increased value of the product, and the ability to easily package even complex-shaped packages. Used.
  • the perforation method involves heat treatment of the heat-shrinkable film, the perforation hole expands, and dust enters through this hole to reduce the commercial value of the package, Has the disadvantage that the perforations break.
  • the method of forming a seal label for opening by sticking a paper sticker on a U-shaped hole it is necessary to install a device for making a U-shaped hole, and a paper seal is required. Is required, which increases the cost.
  • the method of attaching an opening tape has a drawback that complications cannot be avoided.
  • packaging is performed by an L-type sealer packaging machine using a half-fold heat-shrinkable film, it is extremely difficult to apply the conventional opening method as described above.
  • step (1) a notch is formed in at least one of the edges of the heat-shrinkable film to form a notch seal portion, and then the film is subjected to heat shrinkage, so that the protruding piece for opening is formed in the fusing seal portion of the heat-shrinkable film package.
  • step (1) a notch is formed in at least one of the edges of the heat-shrinkable film to form a notch seal portion, and then the film is subjected to heat shrinkage, so that the protruding piece for opening is formed in the fusing seal portion of the heat-shrinkable film package.
  • one embodiment of the present invention provides a package obtained by encapsulating an object to be packaged with a heat-shrinkable film, fusing and sealing the ⁇ portion, and then thermally shrinking the film.
  • the present invention relates to a package having an opening protruding piece formed by forming a cut seal portion by making a cut in an edge portion of a film at one location and then performing heat shrinkage of the film.
  • Another aspect of the present invention is a heat-shrinkable packaging method in which an object to be packaged is wrapped with a heat-shrinkable film, and the edge is thermally sealed after the edge is sealed.
  • a notch is formed by making a cut in at least one place, and then heat shrinking the film to form an opening protruding piece in at least one of the fusing seal parts of the film.
  • the present invention relates to a heat shrink wrapping method for packages.
  • FIG. 1 is a view showing one embodiment of the packaging method according to the present invention.
  • FIG. 2 is a diagram showing one embodiment of the package according to the present invention.
  • FIG. 3 is a diagram showing a state where the package of FIG. 2 is viewed from the left lateral direction.
  • FIG. 4 is a diagram illustrating a packaging method according to another embodiment of the present invention.
  • C is a diagram illustrating a packaging body according to another embodiment of the present invention.
  • FIG. 6 is a diagram showing a state in which the package of FIG. 5 is viewed from the left lateral direction.
  • FIG. 1 is a perspective view showing a state in which a package is wrapped with a heat-shrinkable film.
  • the heat-shrinkable film 2 is folded in half, the packaged object 1 is accommodated therein, and the edges 3, 3 'and 4 of the film are melt-sealed. Thereafter, the heat-shrinkable film is heated and shrunk to complete a tight package.
  • a cut 5 is made in at least one edge of the film, and a cut seal portion 8 is formed. Is formed. The cut 5 may be formed either during or after the package is stored, or the cut may be formed simultaneously with the fusing seal.
  • the fusing sealing method that can be used in the method of the present invention, almost all fusing sealing methods such as a heat sealing method and an impulse sealing method conventionally used in heat shrink wrapping can be adopted.
  • the heat sealing method is a method in which a heating member, usually in the form of a frame, is pressed against the sealing portion of the heat-shrinkable film, and the portion is fusion-sealed and cut. The above means that the fusion seal is cut by an electric impulse instead of the heating member.
  • a notch at the edge of the film is formed by attaching a heating member for forming a notch seal portion to a part of the heating member and forming the notch seal with the fusing seal. At the same time, the formation of the cut seal portion can be performed.
  • Figure 2 shows the state in which the heat shrinkage of the film has been completed and the object to be packaged has been packaged in tights.
  • Fig. 3 shows the package of Fig. 2 viewed from the left side.
  • the cut seal portion 8 formed at the edge of the film is deformed, so that the projecting piece 6 is formed at the fusing seal portion of the film.
  • the size and shape of the projecting piece to be formed can be empirically determined by adjusting the shape and length of the cut formed at the edge of the film, the width of the cut seal, and the like.
  • the method of heat shrinking the heat shrinkable film is to pass the package through a hot air tunnel.
  • a method known in the art and commonly used, such as passing through, may be used.
  • Another embodiment of the present invention provides:
  • a package obtained by enclosing an object to be packaged with a heat-shrinkable film, fusing and sealing the edge, and then heat shrinking the film at least one of the fusing-sealed portions of the film has an edge of the film.
  • a notch is formed in the portion to form a notch seal portion, and thereafter, there is provided an opening protruding piece formed by heat shrinking the film, and an opening marking line is formed on or around the portion of the opening protruding piece.
  • a heat-shrinkable packaging method in which a package is wrapped with a heat-shrinkable film, the edge is melt-sealed, and then the film is heat-shrinked, a cut is made by cutting at least one edge of the film. Forming a sealing portion and then heat shrinking the film to form an opening protruding piece at least at one of the fusing and sealing portions of the film.
  • a method of heat shrink wrapping of a packaged object characterized by drawing a mark line;
  • the opening mark 7 can be drawn on the cut seal portion of the film by a method easily understood by those skilled in the art.
  • a printing device is attached to a part of the packaging machine, whereby a notch 5 is formed in the fusing seal portion of the film, and a marking line 7 for opening is formed on or around the notch seal portion 8 formed at the same time.
  • an opening mark 7 can be drawn at or around the place where the notch seal portion 8 is to be formed in the film fusing seal portion, or Cut 5 in the fusing seal of the film After that, an opening marking line 7 can be drawn on or around the formed cut seal portion 8 (see FIG. 4).
  • the ink used to draw the opening mark 7 a well-known ink in the art can be used.
  • a commercially available quick-drying ink can be used.
  • the package and the packaging method according to the present invention are not limited to spherical, cylindrical, prismatic or any other shapes. It will be apparent to those skilled in the art that the present invention can be applied to a package. In any aspect, if a notch seal portion is provided by making a cut at any one of the edges of the heat-shrinkable film, and then the heat-shrinking step is performed, a protruding piece can be formed at such a portion. .
  • the packaging body and the packaging method according to the present invention use a special device or a further member such as a paper label while maintaining the advantages specific to heat shrinkage such as sealing and aesthetics. It provides an easy-opening means to a heat-shrinkable package very simply and inexpensively without using any of them, and its industrial value is great.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)

Abstract

A heat shrinkable package which is easy to open is obtained by wrapping an article being packaged with a heat shrinkable film, fusing the edges of the film to seal the same, and subjecting the film to heat shrinkage, and is characterized in that a projecting piece for opening is formed by cutting an edge of the film at least one location of the fused and sealed portion of the film to form a cut sealed portion and subjecting the edges of the film to heat shrinkage, and a mark is put on a portion of the projecting piece for opening or around the same if desired.

Description

明 細 書 易開封性熱収縮包装体 技術分野  Description Easy-opening heat-shrinkable package Technical field
本発明は、 容易に開封することが可能な熱収縮包装体に関するものである。 背景技術  The present invention relates to a heat-shrinkable package that can be easily opened. Background art
従来より、 袋状又は半折状等につくつた熱収縮性合成樹脂製フィルムの中に被 包装物を入れ、 フィルムの縁部を溶断シールした後にフィルムを加熱収縮させる ことによってタイ 卜な包装を行う熱収縮包装が一般に行われている。 かかる熱収 縮包装は、 被包装物、 即ち商品を美しく鮮明に見せ商品価値を高めることや、 複 雑な形状の包装物でも簡単に包装することができることなどといつた利点のため に盛んに用いられている。  Conventionally, a package is placed in a heat-shrinkable synthetic resin film formed in a bag shape or a half-fold shape, and the edge of the film is melt-sealed. Performed heat shrink wrapping is commonly performed. Such heat-shrinkable packaging has become popular because of its advantages, such as the appearance of the packaged item, that is, the appearance of the product, which is beautiful and clear, and the increased value of the product, and the ability to easily package even complex-shaped packages. Used.
しかしながら、 この所謂熱収縮包装には開封しづらいという欠点がある。 かか る欠点を克服するために種々の方法が考えられてきた。 熱収縮フィルムによる包 装体の開封を容易にするために考案された従来の方法としては、 熱収縮性フィル ムの所定の位置に開封用のミシン目を入れる方法や、 フィルムの所定の箇所に U 字型の穴を開け、 この上から紙シールを貼ることによって開封用のシールラベル を形成するという方法や、 あるいは所謂オープニングテープを附設する方法など がある。  However, this so-called heat shrink wrap has a drawback that it is difficult to open. Various methods have been considered to overcome such disadvantages. Conventional methods that have been devised to facilitate the opening of the package with the heat shrinkable film include a method in which an opening perforation is made at a predetermined position on the heat shrinkable film, and a method at a predetermined position on the film. There is a method of forming a U-shaped hole and pasting a paper seal from above to form a seal label for opening, or a method of attaching a so-called opening tape.
しかしながら、 ミシン目を入れる方法には、 熱収縮性フィルムを加熱処理した 場合にミシン目の孔が拡大し、 この孔より埃が入って包装物の商品価値を低下さ せたり、 また取り扱いの際にミシン目が破断するなどという欠点がある。 また、 ϋ字型の穴の上から紙シールを貼ることによって開封用のシールラベルを形成す る方法では、 U字型の穴を開けるための装置を設置する必要があり、 また紙シ一 ルが必要となるためコスト高となる。 また、 オープニングテープを附設する方法 では、 煩雑さが免れない欠点がある。 更には、 半折熱収縮性フィルムを使用する L型シーラ一包装機によって包装を行う場合には、 上記のような従来の開封方法 を適用することは極めて困難である。 本発明者は、 これらの欠点を克服し、 熱収縮包装の利点を十分に保持しつ 、 安価で、 容易に開封することができ、 更には決定的な開封方法が見出されていな かった半折熱収縮性フィルムを用いる L型シーラー包装機によって包装を行う場 合にも適用することが可能な易開封性熱収縮包装体を提供すベく鋭意研究を重ね た結果、 熱収縮包装工程において、 熱収縮性フィルムの縁部の少なくとも 1箇所 に切れ込みを入れて切れ込みシール部を形成し、 その後フィルムの加熱収縮を行 うことによって、 熱収縮フィルム包装体の溶断シール部に開封用突出片を極めて 容易に形成させることができることを見出し、 本発明を完成するに至った。 発明の開示 However, the perforation method involves heat treatment of the heat-shrinkable film, the perforation hole expands, and dust enters through this hole to reduce the commercial value of the package, Has the disadvantage that the perforations break. Also, in the method of forming a seal label for opening by sticking a paper sticker on a U-shaped hole, it is necessary to install a device for making a U-shaped hole, and a paper seal is required. Is required, which increases the cost. In addition, the method of attaching an opening tape has a drawback that complications cannot be avoided. Furthermore, when packaging is performed by an L-type sealer packaging machine using a half-fold heat-shrinkable film, it is extremely difficult to apply the conventional opening method as described above. The inventor of the present invention has overcome these drawbacks, has been able to easily and inexpensively open the package while sufficiently retaining the advantages of heat shrink wrapping, and has not found a definitive method of opening the package. As a result of extensive research, we have conducted extensive research to provide easy-opening heat-shrinkable packaging that can be applied to packaging using an L-type sealer packaging machine that uses a half-fold heat-shrinkable film. In step (1), a notch is formed in at least one of the edges of the heat-shrinkable film to form a notch seal portion, and then the film is subjected to heat shrinkage, so that the protruding piece for opening is formed in the fusing seal portion of the heat-shrinkable film package. Have been found to be able to be formed very easily, and the present invention has been completed. Disclosure of the invention
即ち、 本発明の一態様は、 熱収縮性フィルムで被包装物を被包し、 緣部を溶断 シールした後に該フィルムを熱収縮させて得られる包装体において、 該フィルム の溶断シール部の少なくとも 1箇所において、 フィルムの縁部に切れ込みを入れ て切れ込みシール部を形成し、 その後フィルムの熱収縮を行うことによって形成 される開封用突出片を有していることを特徴とする包装体に関する。  That is, one embodiment of the present invention provides a package obtained by encapsulating an object to be packaged with a heat-shrinkable film, fusing and sealing the 緣 portion, and then thermally shrinking the film. The present invention relates to a package having an opening protruding piece formed by forming a cut seal portion by making a cut in an edge portion of a film at one location and then performing heat shrinkage of the film.
また、 本発明の他の態様は、 熱収縮性フィルムで被包装物を被包し、 縁部を溶 断シールした後に該フィルムを熱収縮させることによる熱収縮包装方法において、 フィルムの縁部の少なくとも 1箇所に切れ込みを入れて切れ込みシール部を形成 し、 その後フィルムの熱収縮を行うことによって、 フィルムの溶断シール部の少 なくとも 1箇所において開封用突出片を形成させることを特徴とする被包装物の 熱収縮包装方法に関する。 図面の簡単な説明  Another aspect of the present invention is a heat-shrinkable packaging method in which an object to be packaged is wrapped with a heat-shrinkable film, and the edge is thermally sealed after the edge is sealed. A notch is formed by making a cut in at least one place, and then heat shrinking the film to form an opening protruding piece in at least one of the fusing seal parts of the film. The present invention relates to a heat shrink wrapping method for packages. BRIEF DESCRIPTION OF THE FIGURES
図 1は、 本発明に係る包装方法の一態様を示す図である。 図 2は、 本発明に 係る包装体の一態様を示す図である。 図 3は、 図 2の包装体を左横方向からみた 状態を示す図である。 図 4は、 本発明の他の態様に係る包装方法を示す図である c 図 5は、 本発明の他の態様に係る包装体を示す図である。 図 6は、 図 5の包装体 を左横方向からみた状態を示す図である。 発明を実施するための最良の形態 FIG. 1 is a view showing one embodiment of the packaging method according to the present invention. FIG. 2 is a diagram showing one embodiment of the package according to the present invention. FIG. 3 is a diagram showing a state where the package of FIG. 2 is viewed from the left lateral direction. FIG. 4 is a diagram illustrating a packaging method according to another embodiment of the present invention. C FIG. 5 is a diagram illustrating a packaging body according to another embodiment of the present invention. FIG. 6 is a diagram showing a state in which the package of FIG. 5 is viewed from the left lateral direction. BEST MODE FOR CARRYING OUT THE INVENTION
以下に本発明の一実施例を図面に基づいて説明する。 図 1は熱収縮性フィルム で被包装物を被包した状態を示す斜視図である。 図 1に示す態様においては、 熱 収縮性フィルム 2を半折にしてその中に被包装物 1を収容し、 フィルムの縁部 3、 3 ' 及び 4を溶断シールする。 この後、 熱収縮性フィルムを加熱収縮させてタイ 卜な包装を完成させるのであるが、 この加熱収縮工程を行う前にフィルムの縁部 の少なくとも 1箇所に切れ込み 5を入れて、 切れ込みシール部 8を形成しておく。 この切れ込み 5は、 被包装物の収容中又は収容後のいずれにおいて形成してもよ く、 あるいは、 溶断シールと同時に切れ込みの形成を行ってもよい。  An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a state in which a package is wrapped with a heat-shrinkable film. In the embodiment shown in FIG. 1, the heat-shrinkable film 2 is folded in half, the packaged object 1 is accommodated therein, and the edges 3, 3 'and 4 of the film are melt-sealed. Thereafter, the heat-shrinkable film is heated and shrunk to complete a tight package. Before performing the heat-shrinking step, a cut 5 is made in at least one edge of the film, and a cut seal portion 8 is formed. Is formed. The cut 5 may be formed either during or after the package is stored, or the cut may be formed simultaneously with the fusing seal.
本発明方法において利用することのできる溶断シール方法としては、 熱収縮包 装において従来から使用されているヒートシール法、 ィンパルスシール法などの ほとんどすべての溶断シール法が採用できる。 ここで、 ヒートシール法とは、 熱 収縮性フィルムのシール部に、 通常は枠の形をした加熱部材を押し当ててその部 分を融着シール及び切断するという方法であり、 またインパルスシール法とは、 上記の加熱部材に代えて電気的ィンパルスにより融着シール 切断を行うという ものである。  As the fusing sealing method that can be used in the method of the present invention, almost all fusing sealing methods such as a heat sealing method and an impulse sealing method conventionally used in heat shrink wrapping can be adopted. Here, the heat sealing method is a method in which a heating member, usually in the form of a frame, is pressed against the sealing portion of the heat-shrinkable film, and the portion is fusion-sealed and cut. The above means that the fusion seal is cut by an electric impulse instead of the heating member.
また、 フィルムの縁部における切れ込みの形成は、 例えば、 溶断シール方法と してヒートシール法を採用する場合においては加熱部材の一部に切れ込みシール 部形成用の加熱部材を取り付けて、 溶断シールと同時に切れ込みシール部の形成 が行われるようにすることができる。  In addition, for example, when a heat sealing method is used as a fusing seal method, a notch at the edge of the film is formed by attaching a heating member for forming a notch seal portion to a part of the heating member and forming the notch seal with the fusing seal. At the same time, the formation of the cut seal portion can be performed.
次に、 フィルムを加熱収縮させて被包装物をタイ トに包装する。 フィルムの加 熱収縮が完了して被包装物がタイ 卜に包装された状態を図 2に示す。 また、 図 2 の包装体を左横方向からみた状態を図 3に示す。 この加熱収縮の段階において、 フィルムの縁部に形成された切れ込みシール部 8の部分が変形することにより、 フィルムの溶断シール部において突出片 6が形成されるのである。 形成される突 出片の大きさや形状などは、 フィルムの縁部に形成する切れ込みの形状、 長さ、 切れ込みシール部の幅などを調節することによつて経験的に決定することができ る。  Next, the film is heated and shrunk, and the object to be packaged is wrapped in tight. Figure 2 shows the state in which the heat shrinkage of the film has been completed and the object to be packaged has been packaged in tights. Fig. 3 shows the package of Fig. 2 viewed from the left side. In the heat shrinking step, the cut seal portion 8 formed at the edge of the film is deformed, so that the projecting piece 6 is formed at the fusing seal portion of the film. The size and shape of the projecting piece to be formed can be empirically determined by adjusting the shape and length of the cut formed at the edge of the film, the width of the cut seal, and the like.
熱収縮性フィルムを加熱収縮させる方法は、 熱風トンネルを通して包装体を通 過させるなどの、 当該技術において周知慣用の方法を用いることができる。 The method of heat shrinking the heat shrinkable film is to pass the package through a hot air tunnel. For example, a method known in the art and commonly used, such as passing through, may be used.
上記のようにして得られた包装体は、 従来の包装体と比較して、 開封用突出片 The package obtained as described above is compared with a conventional package,
6が存在している以外は何ら外観の違いのない美麗なものである。 このようにし て得られた本発明に係る包装体を開封するに際しては、 突出片 6を溶断シール部 4の方向に沿って引っ張ることによって極めて容易に開封を行うことができる。 また、 上記のようにして形成した開封用突出片の部分又はその周囲に開封用目 印線を描くことによって、 開封用突出片の位置を明瞭に示して、 開封作業をより 容易にすることができる。 Except for the presence of 6, there is no beautiful difference in appearance. When the package according to the present invention obtained in this manner is opened, it is possible to open the package very easily by pulling the protruding piece 6 along the direction of the fusing seal portion 4. In addition, by drawing an opening marking line on or around the opening protruding piece formed as described above, the position of the opening protruding piece can be clearly indicated, and the opening operation can be made easier. it can.
即ち、 本発明の他の態様は、  That is, another embodiment of the present invention provides:
熱収縮性フィルムで被包装物を被包し、 縁部を溶断シールした後に該フィルム を熱収縮させて得られる包装体において、 該フィルムの溶断シール部の少なくと も 1箇所において、 フィルムの縁部に切れ込みを入れて切れ込みシール部を形成 し、 その後フィルムの熱収縮を行うことによって形成される開封用突出片を有し ており、 該開封用突出片の部分又はその周囲に開封用目印線が描かれていること を特徴とする包装体；並びに、  In a package obtained by enclosing an object to be packaged with a heat-shrinkable film, fusing and sealing the edge, and then heat shrinking the film, at least one of the fusing-sealed portions of the film has an edge of the film. A notch is formed in the portion to form a notch seal portion, and thereafter, there is provided an opening protruding piece formed by heat shrinking the film, and an opening marking line is formed on or around the portion of the opening protruding piece. A package characterized by being drawn; and
熱収縮性フィルムで被包装物を被包し、 縁部を溶断シールした後に該フィルム を熱収縮させることによる熱収縮包装方法において、 フィルムの縁部の少なくと も 1箇所に切れ込みを入れて切れ込みシール部を形成し、 その後フィルムの熱収 縮を行うことによって、 フィルムの溶断シール部の少なくとも 1箇所において開 封用突出片を形成させる工程を含み、 フィルムの切れ込みシール部又はその周囲 に開封用目印線を描くことを特徴とする被包装物の熱収縮包装方法；  In a heat-shrinkable packaging method in which a package is wrapped with a heat-shrinkable film, the edge is melt-sealed, and then the film is heat-shrinked, a cut is made by cutting at least one edge of the film. Forming a sealing portion and then heat shrinking the film to form an opening protruding piece at least at one of the fusing and sealing portions of the film. A method of heat shrink wrapping of a packaged object, characterized by drawing a mark line;
に関する。 About.
かかる開封用目印線 7は、 当業者に容易に理解できる方法によってフィルムの 切れ込みシール部に描くことができる。 例えば、 包装機の一部に印刷装置を取り 付け、 これによつて、 フィルムの溶断シール部に切れ込み 5を入れるのと同時に 形成される切れ込みシール部 8又はその周囲に開封用目印線 7を描くことができ、 また、 フィルムの溶断シール部に切れ込み 5を入れる前に、 フィルム溶断シール 部における切れ込みシール部 8が形成されるべき箇所又はその周囲に開封用目印 線 7を描くこともでき、 あるいは、 フィルムの溶断シール部に切れ込み 5を入れ た後に、 形成された切れ込みシール部 8又はその周囲に開封用目印線 7を描くこ ともできる （図 4参照） 。 このようにして、 切れ込みシール部を設け且つ開封用 目印線 7を描いた後にフィルムの熱収縮を行うと、 開封用突出片 6又はその周囲 に開封用目印線 7を有する包装体が得られる （図 5及び図 6参照） 。 更には、 フィ ルムの溶断シール部に切れ込み 5を入れ、 フィルムを熱収縮させることによって、 開封用突出片 6を有する包装体を形成した後に、 かかる開封用突出片 6又はその 周囲に開封用目印線 7を描くこともできる。 The opening mark 7 can be drawn on the cut seal portion of the film by a method easily understood by those skilled in the art. For example, a printing device is attached to a part of the packaging machine, whereby a notch 5 is formed in the fusing seal portion of the film, and a marking line 7 for opening is formed on or around the notch seal portion 8 formed at the same time. In addition, before making a cut 5 in the fusing seal portion of the film, an opening mark 7 can be drawn at or around the place where the notch seal portion 8 is to be formed in the film fusing seal portion, or Cut 5 in the fusing seal of the film After that, an opening marking line 7 can be drawn on or around the formed cut seal portion 8 (see FIG. 4). In this manner, when the film is subjected to heat shrinkage after providing the cut seal portion and drawing the opening mark 7, a package having the opening protrusion 6 or the opening mark 7 around it is obtained. See Figure 5 and Figure 6). Further, a notch 5 is made in the fusing seal portion of the film, and the film is thermally shrunk to form a package having the opening protruding piece 6, and then the opening protruding piece 6 or the surrounding area is provided with an opening mark. Line 7 can also be drawn.
開封用目印線 7を描くために用いるインクとしては、 当該技術において周知の ものを用いることができ、 例えば市販の速乾性ィンクなどを用いることができる。 このようにして形成された熱収縮包装体を開封する際には、 開封用目印線 7に よってその位置が明瞭に示される開封用突出片 6を、 目印線の方向に沿って引つ 張ることにより、 極めて容易に開封を行うことができる。  As the ink used to draw the opening mark 7, a well-known ink in the art can be used. For example, a commercially available quick-drying ink can be used. When opening the heat-shrinkable package formed in this manner, pull the opening protruding piece 6 whose position is clearly indicated by the opening mark line 7 along the direction of the mark line. Thereby, opening can be performed very easily.
なお、 図面においては、 箱形の被包装物を半折フィルムによって包装する態様 についてのみ記載しているが、 本発明に係る包装体及び包装方法は、 球状、 円柱 状、 角柱状その他いかなる形状の被包装物に対しても適用することができること は当業者には明らかであろう。 どのような態様においても、 熱収縮性フィルムの 縁部のいずれか 1箇所において切れ込みを入れて切れ込みシール部を設け、 その 後に熱収縮工程を行えば、 かかる部分において突出片を形成させることができる。  Note that, in the drawings, only the mode of packing a box-shaped object to be packaged with a half-fold film is described, but the package and the packaging method according to the present invention are not limited to spherical, cylindrical, prismatic or any other shapes. It will be apparent to those skilled in the art that the present invention can be applied to a package. In any aspect, if a notch seal portion is provided by making a cut at any one of the edges of the heat-shrinkable film, and then the heat-shrinking step is performed, a protruding piece can be formed at such a portion. .
産業上の利用可能性 Industrial applicability
本発明に係る包装体及び包装方法は、 上記に説明したように、 密封性や美観性 といった熱収縮包装特有の利点を保持しつつ、 特殊な装置を用いたり、 紙ラベル のような更なる部材を用いることなく、 極めて簡単にかつ極めて安価に熱収縮包 装体に易開封手段を与えるものであり、 その工業的価値は大である。  As described above, the packaging body and the packaging method according to the present invention use a special device or a further member such as a paper label while maintaining the advantages specific to heat shrinkage such as sealing and aesthetics. It provides an easy-opening means to a heat-shrinkable package very simply and inexpensively without using any of them, and its industrial value is great.

Claims

請 求 の 範 囲 The scope of the claims
1. 熱収縮性フィルムで被包装物を被包し、 縁部を溶断シールした後に該フィル ムを熱収縮させて得られる包装体において、 該フィルムの溶断シール部の少なく とも 1箇所において、 フィルムの縁部に切れ込みを入れて切れ込みシール部を形 成し、 その後フィルムの熱収縮を行うことによって形成される開封用突出片を有 していることを特徴とする包装体。  1. In a package obtained by enclosing an object to be packaged with a heat-shrinkable film, fusing and sealing the edge, and then thermally shrinking the film, the film is formed in at least one portion of the fusing-sealed portion of the film. A package having a notch seal portion formed by making a notch in an edge portion of the film, and then having a projecting piece for opening formed by thermally shrinking the film.
2. 熱収縮性フィルムで被包装物を被包し、 縁部を溶断シールした後に該フィル ムを熱収縮させて得られる包装体において、 該フィルムの溶断シール部の少なく とも 1箇所において、 フィルムの縁部に切れ込みを入れて切れ込みシール部を形 成し、 その後フィルムの熱収縮を行うことによって形成される開封用突出片を有 しており、 該開封用突出片の部分又はその周囲に開封用目印線が描かれているこ とを特徴とする包装体。  2. In a package obtained by enclosing an object to be packaged with a heat-shrinkable film, fusing and sealing the edge, and then heat shrinking the film, at least one of the fusing-sealed portions of the film has a film. Has a notch on the edge of the film to form a notch seal portion, and then has a protruding piece for opening formed by thermally shrinking the film. A package characterized by having a marking line drawn thereon.
3. 熱収縮性フィルムで被包装物を被包し、 縁部を溶断シールした後に該フィル ムを熱収縮させることによる熱収縮包装方法において、 フィルムの縁部の少なく とも 1箇所に切れ込みを入れて切れ込みシール部を形成し、 その後フィルムの熱 収縮を行うことによって、 フィルムの溶断シール部の少なくとも 1箇所において 開封用突出片を形成させることを特徴とする被包装物の熱収縮包装方法。  3. In a heat-shrinkable packaging method in which the package is wrapped with a heat-shrinkable film, the edge is melt-sealed, and then the film is heat-shrinked, a cut is made in at least one edge of the film. A heat-shrinkable packaging method for an article to be packaged, characterized in that a notch seal portion is formed, and then the film is thermally shrunk, thereby forming an opening protruding piece at at least one portion of the fusing seal portion of the film.
4. 熱収縮性フィルムで被包装物を被包し、 縁部を溶断シールした後に該フィル ムを熱収縮させることによる熱収縮包装方法において、 フィルムの縁部の少なく とも 1箇所に切れ込みを入れて切れ込みシール部を形成し、 その後フィルムの熱 収縮を行うことによって、 フィルムの溶断シール部の少なくとも 1箇所において 開封用突出片を形成させる工程を含み、 フィルムの切れ込みシール部又はその周 囲に開封用目印線を描くことを特徴とする被包装物の熱収縮包装方法。  4. In a heat-shrinkable packaging method in which the object to be packaged is covered with a heat-shrinkable film, the edge is melt-sealed, and then the film is heat-shrinked, a cut is made in at least one of the edges of the film. Forming a notch seal portion and then heat shrinking the film to form an opening protruding piece in at least one of the fusing seal portions of the film, and opening the notch seal portion of the film or the periphery thereof. A heat shrink wrapping method for an article to be packaged, comprising drawing a marking line for use.
PCT/JP1995/000016 1994-01-11 1995-01-11 Easily openable, heat shrinkable package WO1995018753A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960702612A KR960705724A (en) 1994-01-11 1995-01-11 EASY-TO-OPEN HEAT-SHRUNK PACKAGE

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP6/1223 1994-01-11
JP122394 1994-01-11
JP6120931A JPH07242266A (en) 1994-01-11 1994-06-02 Easy-to-open heat-shrinkable packaging tray
JP6/120931 1994-06-02

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JP3628499B2 (en) * 1997-10-24 2005-03-09 ダブリュー・アール・グレース・アンド・カンパニー−コーン Film welding / cutting equipment for easy-open heat-shrink packaging
US6889483B2 (en) 2002-10-31 2005-05-10 Cryovac, Inc. Easy-opening feature for flexible packages and process and apparatus for forming same
US7861490B2 (en) * 2006-03-17 2011-01-04 Illinois Tool Works Inc. Method of packaging articles
EP2674372A1 (en) * 2012-06-12 2013-12-18 Ipi S.R.L. Device for pening a container for pourable products
JP2015217970A (en) * 2014-05-19 2015-12-07 大日本印刷株式会社 Package
CN105905432A (en) * 2015-10-30 2016-08-31 乐视移动智能信息技术（北京）有限公司 Heat shrinking film

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EP0665173A1 (en) 1995-08-02
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CA2139901A1 (en) 1995-07-12
NZ270317A (en) 1997-11-24
JPH07242266A (en) 1995-09-19
AU1015595A (en) 1995-07-20
BR9500068A (en) 1995-10-17
KR960705724A (en) 1996-11-08

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