JP4899355B2 - Packaging material - Google Patents

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JP4899355B2
JP4899355B2 JP2005188946A JP2005188946A JP4899355B2 JP 4899355 B2 JP4899355 B2 JP 4899355B2 JP 2005188946 A JP2005188946 A JP 2005188946A JP 2005188946 A JP2005188946 A JP 2005188946A JP 4899355 B2 JP4899355 B2 JP 4899355B2
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packaging material
layer
side edge
resin layer
conical
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JP2007008494A (en
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恭一 下村
淳司 島川
登光 木本
典一 濱田
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Dai Nippon Printing Co Ltd
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Description

本発明は、チョコレート菓子やコーン型アイスクリーム等の円錐形状の食品を包装するための包材に関し、特に、前記包材から略扇形状ブランク板を形成し、略扇形状ブランク板を逆円錐状に巻回して一方の側端縁部を他方の側端縁部の上に重ねて側端接合部で接合してなる円錐状包装容器となる包材に関するものである。   The present invention relates to a packaging material for packaging conical foods such as chocolate confectionery and corn type ice cream, and in particular, a substantially fan-shaped blank plate is formed from the packaging material, and the substantially fan-shaped blank plate is shaped like an inverted cone. It is related with the packaging material used as the conical packaging container which winds around and overlaps one side edge part on the other side edge part, and joins it by a side edge junction part.

従来より、チョコレート菓子やコーンアイスクリーム等の大略円錐形状の食品を充填包装する円錐状包装体が、種々提供されている。これらの円錐状包装体に使用される包材を構成する積層体の層構成を例示すると、印刷層/アルミニウム箔層/紙層/熱接着性樹脂層からなるものを挙げることができる。上記包材からなる円錐状包装体は、該包装体の高さ方向略中央部に引裂き用つまみが設けられ、食品の円錐形状の頂点側が下になるように下半分を一方の手で保持した状態で、他方の手で包装体の上半分を引裂いて取除き、食品の上半分を外部に露出させて食することができるようになっている(例えば、特許文献1参照)。さらに、積層体の耐突刺し強度を向上させるために表層に透明基材フィルムを積層し、透明基材フィルム層/印刷層/紙層/アルミニウム箔層/熱接着樹脂層からなるものが挙げられる。この包材からなる円錐状包装体は、一方の側端縁部の略中央部に引裂き用つまみ部と、前記引裂き用つまみ部を区画する一方の区画手段に連接すると共に円錐面の略円周方向に設けられた透明基材フィルム側から紙層に達する第一ミシン目線等の開封手段が施され、引裂き用つまみ部を包装体の本体に対して略横方向に引張ることにより、包装体の上半分を下半分に対して簡単に引裂くことができ、包装体に収納された円錐形状の食品の上半分をスムーズに露出させることができるようになっている円錐型包装体を本出題人は、特願2004−102785号にて提案している。   Conventionally, various conical packaging bodies for filling and packaging generally conical foods such as chocolate confectionery and corn ice cream have been provided. Examples of the layer structure of the laminate constituting the packaging material used for these conical packaging bodies include those composed of a printing layer / aluminum foil layer / paper layer / thermoadhesive resin layer. The conical packaging body made of the packaging material is provided with a tearing knob at a substantially central portion in the height direction of the packaging body, and the lower half is held with one hand so that the apex side of the conical shape of the food is down. In the state, the upper half of the package is torn and removed with the other hand, and the upper half of the food is exposed to the outside so that it can be eaten (see, for example, Patent Document 1). Furthermore, in order to improve the puncture resistance of the laminate, a transparent substrate film is laminated on the surface layer, and a laminate comprising a transparent substrate film layer / printing layer / paper layer / aluminum foil layer / thermoadhesive resin layer can be mentioned. . The conical packaging body made of this packaging material is connected to a tear knob at one of the side edges and one partitioning means for partitioning the tear knob and has a substantially circular conical surface. Opening means such as the first perforation line reaching the paper layer from the transparent base film side provided in the direction is applied, and by pulling the tear tab part in the transverse direction with respect to the main body of the package, A conical package that can easily tear the upper half against the lower half and smoothly expose the upper half of the conical food contained in the package. Proposed in Japanese Patent Application No. 2004-102785.

これらの円錐状包装体に使用される包材は、アルミニウム箔等が使用され、防湿性に優れ、また、食するときの取扱いも簡便であり、さらに、包材の表面もしくは表層の透明フィルムの裏面に印刷等を施すことができ意匠性を高めることができることから、広く使用されているものである。しかしながら、上記の円錐状包装体には保型性等を付与する必要があり、包材には、反発力が高く、腰の強い紙基材等が使用されるために円錐状包装体の先端のシール部が剥離し易くなり、該円錐状包装体の円錐の角度が鋭角になる形態ほど、剥離傾向は著しいものとなる。その結果、先端のシール部が開いて食品が吸湿したり、外観不良等の問題を引起すという欠点がある。特に、内容物がアイスクリームの場合には、溶けると液状となって漏れて手指や衣服を汚すという問題がある。これらの課題に関して、円錐状の先端部を構成するシール部に相当する領域部分の包装材料に複数の傷痕を刻設して円錐状の先端部を構成するシール部の剥離を防止する包装体が提案されている(例えば、特許文献2参照)。   The packaging material used in these conical packaging bodies is made of aluminum foil or the like, has excellent moisture resistance, is easy to handle when eating, and further has a transparent film on the surface or surface of the packaging material. Since the back surface can be printed and the design property can be improved, it is widely used. However, it is necessary to impart shape-retaining properties to the above-mentioned conical package, and since the paper material having a high repulsive force and strong stiffness is used for the packaging material, the tip of the conical package is used. The seal part becomes easier to peel off, and the tendency for the peeling to become more pronounced as the cone angle of the conical package becomes sharper. As a result, there is a drawback that the seal part at the tip is opened and the food absorbs moisture or causes problems such as poor appearance. In particular, when the content is ice cream, there is a problem that when it melts, it becomes liquid and leaks and soils fingers and clothes. With respect to these problems, there is provided a packaging body for engraving a plurality of scars in a packaging material in an area portion corresponding to a seal portion constituting a conical tip portion to prevent peeling of the seal portion constituting the conical tip portion. It has been proposed (see, for example, Patent Document 2).

この特許文献2に開示された技術により、円錐状包装体の先端のシール部の剥離発生は、著しく減少し大きな効果があったものの十分なものではなく、特に、層構成に透明基材フィルム層が積層された多層の積層体からなる包材を使用すると、包材の腰も強くなり、反発力が一層、高いものとなり、円錐状包装体の先端のシール部が剥離する場合があり、問題となっている。また、該特許文献2に開示された技術は、扇形状ブランク板の所定位置に傷痕を刻設する工程が必要となり、コスト高とならざるを得ないものである。
実用新案登録第2597322号公報 特開平10−59469号公報
According to the technique disclosed in Patent Document 2, the occurrence of peeling of the seal portion at the tip of the conical package is significantly reduced and has a great effect, but is not sufficient. When using a packaging material consisting of a multi-layered laminate, the packaging material becomes stronger, the repulsive force becomes even higher, and the seal part at the tip of the conical package may peel off, It has become. In addition, the technique disclosed in Patent Document 2 requires a step of marking a scratch at a predetermined position of the fan-shaped blank plate, which inevitably increases costs.
Utility Model Registration No. 2597322 Japanese Patent Laid-Open No. 10-59469

そこで本発明は、略扇形状ブランク板を形成し、該略扇形状ブランク板を逆円錐状に巻回して一方の側端縁部を他方の側端縁部の上に重ねて側端接合部で接合してなる円錐状包装体において、上記の円錐状の先端部を構成するシール部の剥離を防止し、食品の吸湿、食品の漏れ、外観不良等の発生しない円錐状包装体に使用される包材を安価に提供することである。   Therefore, the present invention forms a substantially fan-shaped blank plate, winds the substantially fan-shaped blank plate in an inverted conical shape, and superimposes one side edge on the other side edge to form a side end joint. In the conical package formed by joining, the seal part constituting the above-mentioned conical tip is prevented from peeling off, and is used for the conical package that does not cause moisture absorption, food leakage, poor appearance, etc. It is to provide a packaging material at a low cost.

本発明は、上記課題を達成するために、請求項1記載の本発明は、少なくとも紙層と最内層にポリオレフィン系樹脂層が積層された包装材料から略扇形状ブランク板を形成し、前記略扇形状ブランク板を逆円錐状に巻回して一方の側端縁部を他方の側端縁部の上に重ねて側端接合部で接合され、内容物を収納後、上縁部が、熱シール接合により封止される包材であって、前記扇形状ブランク板の前記一方の側端縁部における上端部から頂点にかけての帯状領域からなる第一の領域部分と、前記扇形状ブランク板の前記他方の側端縁部における上端部近傍の第二の領域部分における前記ポリオレフィン系樹脂層面にのみ接着補強処理が施されたことを特徴とするものである。 In order to achieve the above object, according to the present invention, a substantially fan-shaped blank board is formed from a packaging material in which a polyolefin resin layer is laminated at least on a paper layer and an innermost layer. A fan-shaped blank plate is wound in an inverted conical shape, one side edge is overlapped on the other side edge and joined at the side edge joint, and after storing the contents, the upper edge is heated. It is a packaging material sealed by seal bonding, and a first region portion consisting of a belt-like region from an upper end portion to an apex in the one side edge portion of the fan-shaped blank plate, and the fan-shaped blank plate Only the polyolefin-based resin layer surface in the second region near the upper end of the other side edge is subjected to adhesion reinforcement treatment.

また、請求項2記載の本発明は、請求項1記載の包材において、前記ポリオレフィン系樹脂層面に施す接着補強処理が、コロナ処理であることを特徴とするものである。   The present invention according to claim 2 is characterized in that, in the packaging material according to claim 1, the adhesion reinforcing treatment applied to the surface of the polyolefin resin layer is a corona treatment.

また、請求項3記載の本発明は、請求項1記載の包材において、前記側端接合部をホットメルト接着剤で接合することを特徴とするものである。   The present invention according to claim 3 is characterized in that, in the packaging material according to claim 1, the side end joint is joined by a hot melt adhesive.

本発明の包材は、少なくとも紙層と最内層にポリオレフィン系樹脂層が積層された包装材料から略扇形状ブランク板を形成し、前記略扇形状ブランク板を逆円錐状に巻回して一方の側端縁部を他方の側端縁部の上に重ねて側端接合部で接合され、内容物を収納後、上縁部が、熱シール接合により封止される包材であって、前記扇形状ブランク板の前記一方の側端縁部における上端部から頂点にかけての帯状領域からなる第一の領域部分と、前記扇形状ブランク板の前記他方の側端縁部における上端部近傍の第二の領域部分における前記ポリオレフィン系樹脂層面にのみ接着補強処理を施すことにより、円錐状の先端部を構成するシール部の剥離を防止し、食品の吸湿、食品の漏れ、外観不良等の発生しないという効果を奏するものである。 The packaging material of the present invention is formed by forming a substantially fan-shaped blank board from a packaging material in which a polyolefin resin layer is laminated at least on a paper layer and an innermost layer, and winding the substantially fan-shaped blank board in an inverted conical shape. The side edge is overlapped on the other side edge and joined at the side edge joint, and after storing the contents, the upper edge is sealed by heat seal joining, A first region portion composed of a belt-like region from the upper end portion to the apex at the one side edge portion of the fan-shaped blank plate, and a second portion in the vicinity of the upper end portion at the other side edge portion of the fan-shaped blank plate. By applying an adhesion reinforcing treatment only to the polyolefin resin layer surface in the region of the area, peeling of the seal portion constituting the conical tip portion is prevented, so that moisture absorption of food, leakage of food, poor appearance, etc. do not occur. There is an effect.

さらに、包材の表層に透明基材フィルム層を積層した積層体を使用でき、該包材で形成した円錐状包装容器内に円錐形状の食品を充填包装した円錐状包装体の輸送時における振動・衝撃で円錐状包装体の先端が、他の円錐状包装体に衝突しても包材を突刺して破れたり、ピンホールを発生したりすることを防止できる効果を奏するものである。また、表面に透明基材フィルム層を積層することにより、優れた光沢を有し、意匠性においても優れるという効果がある。   Furthermore, a laminate in which a transparent base film layer is laminated on the surface layer of the packaging material can be used, and vibration during transportation of a conical packaging body in which a conical food container is filled and packaged in a conical packaging container formed of the packaging material -Even if the tip of a conical packaging body collides with another conical packaging body by an impact, it has an effect of preventing the packaging material from being pierced and broken or generating pinholes. Further, by laminating a transparent substrate film layer on the surface, there is an effect that it has excellent gloss and is excellent in design.

また、最内層のポリオレフィン系樹脂層面の接着補強処理としてコロナ処理を側端接合部に相当し、扇形状ブランク板の頂点を含む近傍に部分的に施すことにより、ポリオレフィン系樹脂層と接着剤との接着力向上が図れ、円錐状の先端部を構成するシール部の剥離を防止できると共に、該コロナ処理は、包材の製造工程において、各層を積層する工程でインラインで施すことができ、包材を安価に提供できる効果がある。   Moreover, corona treatment is equivalent to the side end joint as an adhesion reinforcement treatment of the polyolefin resin layer surface of the innermost layer, and by partially applying to the vicinity including the apex of the fan-shaped blank plate, the polyolefin resin layer and the adhesive In addition, the corona treatment can be performed in-line in the process of laminating each layer in the packaging material manufacturing process, and the sealing part constituting the conical tip can be prevented from peeling. The material can be provided at low cost.

また、側端接合部の接着にホットメルト接着剤を使用することにより、エマルジョン接着剤や溶剤系接着剤に比べ、乾燥時間が不要となり生産性の向上が図れるという効果がある。   In addition, by using a hot melt adhesive for bonding the side end joint, there is an effect that a drying time is not required and productivity can be improved as compared with an emulsion adhesive or a solvent-based adhesive.

上記の本発明について、図面等を用いて以下に詳述する。本発明にかかる包材についてその二三の例を例示して図面を用いて説明する。図1、図2、図3および図4は、本発明にかかる包材を構成する積層体の二三の例を示す断面図である。図5は略扇形状ブランク板のパターンを2列印刷した図1に示す包材をポリオレフィン系樹脂層の面からみた平面図を示す。図6は、図1に示す包材から形成した略扇形状ブランク板をポリオレフィン系樹脂層の面からみた平面図示す。図7は、図6に示す扇形のブランク板から形成した円錐状包装容器の一例を示す斜視図であり、図8は、図7に示す円錐状包装容器に円錐状内容物を充填包装した円錐状包装体の一例を示す斜視図である。   The above-described present invention will be described in detail below with reference to the drawings. A few examples of the packaging material according to the present invention will be described with reference to the drawings. 1, FIG. 2, FIG. 3 and FIG. 4 are cross-sectional views showing some examples of laminates constituting the packaging material according to the present invention. FIG. 5 is a plan view of the packaging material shown in FIG. 1 printed with two rows of substantially fan-shaped blank plate patterns as viewed from the surface of the polyolefin resin layer. FIG. 6 is a plan view of the substantially fan-shaped blank plate formed from the packaging material shown in FIG. 1 as viewed from the surface of the polyolefin resin layer. 7 is a perspective view showing an example of a conical packaging container formed from the fan-shaped blank plate shown in FIG. 6, and FIG. 8 is a cone in which the conical contents are packed and packaged in the conical packaging container shown in FIG. It is a perspective view which shows an example of a shaped package.

最初に本発明にかかる包材Aは、図1に示すように、透明基材フィルム層1、アルミニウム箔層2、紙層3、ポリオレフィン系樹脂層4を順に積層した積層体からなるものであり、積層方法としては、Tダイ押出機を用いてポリオレフィン等の熱可塑性樹脂を熱溶融押出して積層する方法、ドライラミネーション法やウエットラミネーション法等を用いて積層する方法など周知の積層方法を適宜用いて積層すればよいものである。さらに、図示しないが、包材Aから略扇形状ブランク板を形成し、逆円錐状に巻回して一方の側端縁部を他方の側端縁部の上に重ねて接合される側端接合部において、扇形状ブランク板の頂点近傍を含む領域部分のポリオレフィン系樹脂層4の面(以下、先端シール領域部と呼称する)に接着補強処理が施されている。さらに、透明基材フィルム層1のアルミニウム箔層2に対向する面に絵柄、文字、図形、記号、その他等の所望の印刷絵柄5が設けられている。   First, the packaging material A according to the present invention is composed of a laminate in which a transparent base film layer 1, an aluminum foil layer 2, a paper layer 3, and a polyolefin resin layer 4 are laminated in this order, as shown in FIG. As a lamination method, a known lamination method such as a method of laminating a thermoplastic resin such as polyolefin by hot melt extrusion using a T-die extruder, a method of laminating using a dry lamination method, a wet lamination method, or the like is appropriately used. Can be laminated. Furthermore, although not shown in figure, the side end joining which forms a substantially fan-shaped blank board from the wrapping material A, winds in a reverse cone shape, and overlaps and joins one side edge part on the other side edge part. In the portion, the surface of the polyolefin-based resin layer 4 in the region including the vicinity of the apex of the fan-shaped blank plate (hereinafter referred to as the tip seal region portion) is subjected to adhesion reinforcement processing. Furthermore, a desired printed pattern 5 such as a pattern, a character, a figure, a symbol, or the like is provided on the surface of the transparent base film layer 1 facing the aluminum foil layer 2.

次に、本発明にかかる包材Bは、図2に示すように、透明基材フィルム層1、紙層3、アルミニウム箔層2、ポリオレフィン系樹脂層4を順に積層した積層体からなるものであり、包材Aと同様の積層方法を用いて積層され、図示しないが、ポリオレフィン系樹脂層4面の先端シール領域部に接着補強処理が施されている。さらに、透明基材フィルム層1の紙層3に対向する面に絵柄、文字、図形、記号、その他等の所望の印刷絵柄5が設けられている。   Next, as shown in FIG. 2, the packaging material B according to the present invention comprises a laminate in which a transparent base film layer 1, a paper layer 3, an aluminum foil layer 2, and a polyolefin resin layer 4 are laminated in this order. Yes, it is laminated using the same laminating method as that of the packaging material A, and although not shown in the drawing, an adhesion reinforcing treatment is applied to the tip seal region portion of the polyolefin resin layer 4 surface. Further, a desired printed pattern 5 such as a pattern, a character, a figure, a symbol, or the like is provided on the surface of the transparent base film layer 1 facing the paper layer 3.

また、本発明にかかる包材Cは、図3に示すように、アルミニウム箔層2、紙層3、ポリオレフィン系樹脂層4を順に積層した積層体からなるものであり、包材Aと同様の積層方法を用いて積層され、図示しないが、ポリオレフィン系樹脂層4面の先端シール領域部に接着補強処理が施されている。さらに、アルミニウム箔層2の表面に絵柄、文字、図形、記号、その他等の所望の印刷絵柄5が設けられている。アルミニウム箔層2の表面には必要に応じて、プライマー層を形成して、印刷絵柄5を設け、該印刷絵柄5の上に、印刷インキを保護したり、光沢等を付与して意匠性や機能性を高めるためのオーバープリント層を適宜形成することもできる。   Further, as shown in FIG. 3, the packaging material C according to the present invention is composed of a laminate in which an aluminum foil layer 2, a paper layer 3, and a polyolefin resin layer 4 are laminated in order, and is similar to the packaging material A. Although laminated using a lamination method, although not shown, an adhesion reinforcing treatment is applied to the tip seal region portion on the surface of the polyolefin resin layer 4. Further, a desired printed pattern 5 such as a pattern, characters, figures, symbols, etc. is provided on the surface of the aluminum foil layer 2. If necessary, a primer layer is formed on the surface of the aluminum foil layer 2 and a printed pattern 5 is provided. On the printed pattern 5, the printing ink is protected or gloss is given to provide a design property or the like. An overprint layer for enhancing functionality can also be appropriately formed.

次に、本発明にかかる包材Dは、図4に示すように、紙層3、アルミニウム箔層2、ポリオレフィン系樹脂層4を順に積層した積層体からなるものであり、包材Aと同様の積層方法を用いて積層され、図示しないが、ポリオレフィン系樹脂層4面の先端シール領域部に接着補強処理が施されている。さらに、紙層3の表面に絵柄、文字、図形、記号、その他等の所望の印刷絵柄5が設けられている。印刷絵柄5の表面には必要に応じて、印刷インキを保護したり、光沢等を付与して意匠性や機能性を高めるためのオーバープリント層を適宜形成することもできる。   Next, as shown in FIG. 4, the packaging material D according to the present invention is composed of a laminate in which a paper layer 3, an aluminum foil layer 2, and a polyolefin-based resin layer 4 are sequentially laminated. Although not shown in the figure, an adhesion reinforcing treatment is applied to the tip seal region portion of the polyolefin resin layer 4 surface. Further, a desired printed pattern 5 such as a pattern, characters, figures, symbols, etc. is provided on the surface of the paper layer 3. If necessary, an overprint layer can be appropriately formed on the surface of the printed pattern 5 for protecting the printing ink or imparting gloss or the like to enhance the design and functionality.

上記の例示は、本発明にかかる包材の二三の例示であり、本発明はこれによって限定されるものではなく、少なくとも紙層と最内層にポリオレフィン系樹脂層が積層された構成であれば表面層及び中間層に種々のプラスチックフィルムやアルミニウム箔等を積層することができる。   The above illustrations are a few examples of the packaging material according to the present invention, and the present invention is not limited thereto, as long as the polyolefin resin layer is laminated at least on the paper layer and the innermost layer. Various plastic films, aluminum foils, and the like can be laminated on the surface layer and the intermediate layer.

次に、本発明のポイントであるポリオレフィン系樹脂層4面の先端シール領域部に接着補強処理を施す方法について、図5を参照しながら説明する。図5は略扇形状ブランク板のパターンを2列印刷した包材Aをポリオレフィン樹脂層4の面からみた平面図を示す。図5に示した略扇形状ブランク10の点線は打ち抜き予定線を示し、実線は先端シール領域部11を示している。包材Aの製造方法を例示すると、まず最初に透明基材フィルム層1のアルミニウム箔層2に対向する面にグラビア印刷方式で印刷絵柄5を裏刷する。その後、アルミニウム箔層2、紙層3を順次、ドライラミネーション方式で積層し、さらに、紙層3の面にポリオレフィン系樹脂をTダイ押出機を用いて熱溶融押出してポリオレフィン系樹脂層4を積層し、図5に示すように、少なくとも、先端シール領域部11を含む領域のポリオレフィン系樹脂層4面に積層体ウェブが走行する方向に部分的に、且つ帯状にコロナ処理(図5中の斜線部で示した領域)を施し、包材Aの積層体を製造した。接着補強処理法には、コロナ処理、オゾン処理、プラズマ処理、サンドブラスト処理、アンダーコート処理等を用いることができるが、生産性、簡便性の面からコロナ処理が望ましい。また、接着補強処理は、積層体の製造後、次工程で施したり、あるいは略扇形状ブランク板を形成後に施してもよいが、経済面から積層体の製造工程でインラインで施す方が好ましい。   Next, a method of applying an adhesion reinforcing process to the tip seal region on the surface of the polyolefin-based resin layer 4 that is a point of the present invention will be described with reference to FIG. FIG. 5 shows a plan view of the packaging material A obtained by printing two rows of substantially fan-shaped blank plate patterns from the surface of the polyolefin resin layer 4. The dotted line of the substantially fan-shaped blank 10 shown in FIG. 5 indicates the planned punch line, and the solid line indicates the tip seal region 11. To illustrate the method for producing the packaging material A, first, the printed pattern 5 is first printed on the surface of the transparent base film layer 1 facing the aluminum foil layer 2 by a gravure printing method. After that, the aluminum foil layer 2 and the paper layer 3 are sequentially laminated by the dry lamination method, and the polyolefin resin layer 4 is laminated on the surface of the paper layer 3 by hot melt extrusion using a T-die extruder. Then, as shown in FIG. 5, at least the corona treatment in the direction in which the laminate web runs on the surface of the polyolefin-based resin layer 4 in the region including the tip seal region 11 (indicated by the diagonal lines in FIG. 5). The region indicated by the part) was applied to produce a laminate of the packaging material A. Corona treatment, ozone treatment, plasma treatment, sandblast treatment, undercoat treatment, and the like can be used as the adhesion reinforcing treatment method, but corona treatment is desirable from the viewpoint of productivity and simplicity. In addition, the adhesion reinforcement treatment may be performed in the next step after the laminated body is manufactured, or may be performed after the substantially fan-shaped blank plate is formed.

次に、上記の巻取となった包材Aから、大断、小断、打ち抜きを行い、図6に示すようにブランク板Eが製造される。図中12、12は開封用ミシン目線を表し、13は引裂き用摘み部を表す。また、先端シール領域部11は領域を識別して理解しやすくするためにコロナ処理を示す斜線が記していないが、該先端シール領域部11にもコロナ処理が施されているものである。上記の開封用ミシン目線12、12は大断前の工程で最内層のポリオレフィン系樹脂層4以外の透明基材フィルム層1、アルミニウム箔層2、紙層3まで達するように例えば、ロータリーダイカッターを用いて形成されている。尚、ミシン目の形状、本数は内容物の大きさ等によって、適宜に選定される。   Next, from the packaging material A that has been wound as described above, large cuts, small cuts, and punching are performed, and a blank plate E is manufactured as shown in FIG. In the drawing, 12 and 12 represent perforation lines for opening, and 13 represents a tearing knob. The tip seal region 11 is not hatched to indicate corona treatment in order to identify and understand the region, but the tip seal region 11 is also subjected to corona treatment. The opening perforation lines 12 and 12 are, for example, a rotary die cutter so as to reach the transparent substrate film layer 1 other than the innermost polyolefin resin layer 4, the aluminum foil layer 2, and the paper layer 3 in the step before the major break. It is formed using. The shape and number of perforations are appropriately selected depending on the size of the contents.

上記のように包材Aから製造されたブランク板Eは、ポリオレフィン系樹脂層4側を内側にして逆円錐状に巻回して、一方の側端縁部14を他方の側端縁部15の上に重ねると共に重ねた両側端縁部14、15にホットメルト接着剤を塗布して側端接合部16で接合して図7に示すように上縁部により形成された開口部17を有する円錐状包装容器Fとなし、その後、該開口部17から円錐形状のチョコレート菓子やアイスクリーム等の内容物を充填し、開口部17を三方向から放射状に寄せ合わせ、互いに対向する前記ポリオレフィン系樹脂層4面同士を熱接着することにより、上端シール部18を形成して図8に示すような円錐状包装体Gを得た。尚、側端接合部16に相当するポリオレフィン系樹脂層4面にはコロナ処理がされている。   The blank plate E manufactured from the packaging material A as described above is wound in an inverted conical shape with the polyolefin-based resin layer 4 side inward, and one side edge 14 is formed on the other side edge 15. A cone having an opening portion 17 formed by the upper edge portion as shown in FIG. The polyolefin-based resin layer is formed into a cylindrical packaging container F, and then filled with contents such as a cone-shaped chocolate confectionery or ice cream from the opening 17, and the openings 17 are brought together radially from three directions. By heat-bonding the four surfaces, an upper end seal portion 18 was formed to obtain a conical package G as shown in FIG. The surface of the polyolefin-based resin layer 4 corresponding to the side end joint portion 16 is subjected to corona treatment.

上記のような構成にすることによって、上端シール部18を形成するポリオレフィン系樹脂層4面にはコロナ処理領域がないために、上端シール部18の熱接着が良好にできるものである。また、内容物がアイスクリームの場合、アイスクリームがポリオレフィン系樹脂層4に施されたコロナ処理面と接触すると、該コロナ処理面とアイスクリームが密着し、円錐状包装体の包材を開封する際に、ポリオレフィン系樹脂層4に密着したアイスクリームが引張られてアイスクリームの形状が損なわれる場合があるが、本発明の構成にすることにより、コロナ処理面がアイスクリームと接触することもなく、アイスクリームの形状が壊れることが防止できるものである。   By adopting the above configuration, the surface of the polyolefin-based resin layer 4 that forms the upper end seal portion 18 has no corona treatment region, so that the upper end seal portion 18 can be thermally bonded. When the content is ice cream, when the ice cream comes into contact with the corona-treated surface applied to the polyolefin resin layer 4, the corona-treated surface and the ice cream are brought into close contact with each other, and the packaging material of the conical package is opened. In some cases, the ice cream in close contact with the polyolefin-based resin layer 4 may be pulled to impair the shape of the ice cream, but the corona-treated surface does not come into contact with the ice cream by using the configuration of the present invention. The shape of the ice cream can be prevented from being broken.

次に、本発明にかかる包材を構成する材料について、説明する。紙層には、上質紙、コート紙、アート紙、クラフト紙等が使用でき、アルミニウム箔層には、軟質、半硬質、硬質、合金箔が使用できるが、軟質アルミニウム箔が適当である。また、透明性基材フィルム層には、印刷適性があり、切欠や切目等から容易に引裂き可能なものであれば、特に限定するものでないが、二軸延伸されたポリエステルフィルムやポリプロピレンが適当である。また、最内層には、熱接着可能な樹脂であれば、特に限定されるものではないが、内容物を充填して、開口部17を三方向から放射状に寄せ合わせ、互いに対向する面同士を熱接着する際に、ホットタック性が要求されること、また、最内層のフィルム固有の臭気が移行して内容物へ着臭することから、ポリプロピレンやポリエチレン等のポリオレフィン系樹脂が適当であり、好ましくは線状低密度ポリエチレンである。   Next, the material which comprises the packaging material concerning this invention is demonstrated. Fine paper, coated paper, art paper, craft paper, etc. can be used for the paper layer, and soft, semi-rigid, hard or alloy foil can be used for the aluminum foil layer, but soft aluminum foil is suitable. In addition, the transparent base film layer is not particularly limited as long as it has printability and can be easily torn from notches and cuts, but a biaxially stretched polyester film or polypropylene is suitable. is there. The innermost layer is not particularly limited as long as it is a heat-bondable resin, but the contents are filled, the openings 17 are brought together radially from three directions, and the surfaces facing each other are formed. When heat bonding, hot tackiness is required, and since the odor inherent to the innermost film migrates and odors the contents, polyolefin resins such as polypropylene and polyethylene are suitable, Linear low density polyethylene is preferred.

次に、本発明の包材から形成した略扇形状フランク板Eの両側端縁部14、15を重ねて側端接合部16で接合する接着剤としては、ポリオレフィン系、ポリ酢酸ビニル系、ポリアクリル系、ゴム系等を主成分とする溶剤型、エマルジョン型、ホットメルト型等の接着剤を使用することができるが、生産性のよいホットメルト接着剤が望ましい。主成分もポリオレフィン系が適当であり、特に、エチレン酢酸ビニル共重合体系が好ましい。   Next, as an adhesive for overlapping the side edge portions 14 and 15 of the substantially fan-shaped flank plate E formed from the packaging material of the present invention and joining them at the side edge joint portion 16, polyolefin, polyvinyl acetate, poly Solvent-type, emulsion-type, and hot-melt type adhesives mainly composed of acrylic, rubber, etc. can be used, but hot-melt adhesives with good productivity are desirable. The main component is suitably a polyolefin, and an ethylene vinyl acetate copolymer system is particularly preferable.

次に、本発明について、以下に実施例を挙げてさらに詳しく説明する。   Next, the present invention will be described in more detail with reference to the following examples.

厚さ20μmの両面コロナ処理された二軸延伸ポリプロピレンフィルムの一方の面にグラビア印刷方式でウレタン系インキを使用して印刷絵柄層を設け、該印刷層と厚さ7μmのアルミニウム箔とをウレタン系接着剤を介してドライラミネーション方式で積層し、さらに、該アルミニウム箔と上質紙(52.3g/m2)とをウレタン系接着剤を介してドライラミネーション方式で積層した。その後、前記上質紙面にTダイ押出機で低密度ポリエチレンを溶融押出して厚さ35μmを塗布して積層体を作製し、図5に示すように、低密度ポリエチレン樹脂層面に少なくとも、先端シール領域部11を含む領域に見当合せをして、部分的に帯状にコロナ処理を施して、包材Aを作製した。その後、周面の所定位置に切刃を突設したロータリーダイロールとアンビルロールとからなるロータリーダイカッターを用いて前記積層体の所定位置に両面コロナ処理された二軸延伸ポリプロピレンフィルム側から上質紙に達する開封用ミシン目線12、12を形成し、その後、大断、小断、打ち抜きをして、図6に示すブランク板Eを作製した。 A printed pattern layer is provided on one surface of a biaxially oriented polypropylene film having a thickness of 20 μm and subjected to double-sided corona treatment using a urethane-based ink by a gravure printing method, and the printed layer and an aluminum foil having a thickness of 7 μm are urethane-based. The aluminum foil and high-quality paper (52.3 g / m 2 ) were laminated by a dry lamination method through an adhesive, and the aluminum foil and fine paper (52.3 g / m 2 ) were laminated by a dry lamination method. Thereafter, a low-density polyethylene is melt-extruded on the fine paper surface with a T-die extruder and a thickness of 35 μm is applied to produce a laminate, and as shown in FIG. 11 was registered, and a corona treatment was partially applied in a band shape to prepare a packaging material A. Then, using a rotary die cutter composed of a rotary die roll and an anvil roll having a cutting edge projecting at a predetermined position on the peripheral surface, a high-quality paper from the biaxially stretched polypropylene film side subjected to double-side corona treatment at a predetermined position of the laminate The perforation lines 12 and 12 for opening are formed, and after that, large cuts, small cuts and punching are performed to produce a blank plate E shown in FIG.

上記で作製したブランク板Eを低密度ポリエチレン樹脂層面を内側にして逆円錐状に巻回して、図6における一方の側端縁部14を他方の側端縁部15の上に重ねると共に重ねた低密度ポリエチレン樹脂層のコロナ処理部にエチレン酢酸ビニル共重合体系ホットメルト接着剤を塗布して側端接合部16で接合し、図7に示す円錐状包装容器Fを製造し、その後、該円錐状包装容器Fの開口部17からコーン、次いでアイスクリームを充填し、開口部17を三方向から放射状に寄せ合わせ、互いに対向する低密度ポリエチレン樹脂層面同士を熱接着することにより、上端シール部18を形成して図8に示すような円錐状包装体Gを得た。上記で製造したアイスクリームの円錐状包装体Gは、その円錐状の先端シール部において、先端シール部が剥離して開くこともなく、内容物の漏れもなかった。また、この円錐状包装体Gを円錐頂点側が下になるように包装体の下半分を一方の手で保持した状態で、他方の手で引裂き用摘み部13を摘んで、略横方向に引裂くと開封用ミシン目線12に沿って包材が引き裂かれて開封され、アイスクリームの形状が壊れることもなく、上半分を露出することができ、食することができた。   The blank plate E produced above was wound in an inverted conical shape with the low-density polyethylene resin layer surface inside, and one side edge 14 in FIG. 6 was overlaid on the other side edge 15. An ethylene vinyl acetate copolymer hot melt adhesive is applied to the corona-treated portion of the low density polyethylene resin layer and bonded at the side end bonding portion 16 to produce the conical packaging container F shown in FIG. The top end seal 18 is filled by filling the cone 17 and then ice cream from the opening 17 of the cylindrical packaging container F, bringing the openings 17 radially from three directions, and thermally bonding the low-density polyethylene resin layer surfaces facing each other. And a conical package G as shown in FIG. 8 was obtained. The cone-shaped package G of ice cream produced above had no tip seal portion peeled off and opened at the cone tip seal portion, and the contents did not leak. While holding the lower half of the packaging body G with one hand so that the conical apex side is on the lower side of the conical packaging body G, the tear gripping portion 13 is picked with the other hand and pulled in a substantially lateral direction. When it was torn, the packaging material was torn and opened along the perforation line 12 for opening, and the shape of the ice cream was not broken, and the upper half could be exposed and eaten.

本発明にかかる包材を構成する積層体の一例を示す断面図である。It is sectional drawing which shows an example of the laminated body which comprises the packaging material concerning this invention. 本発明にかかる包材を構成する積層体の一例を示す断面図である。It is sectional drawing which shows an example of the laminated body which comprises the packaging material concerning this invention. 本発明にかかる包材を構成する積層体の一例を示す断面図である。It is sectional drawing which shows an example of the laminated body which comprises the packaging material concerning this invention. 本発明にかかる包材を構成する積層体の一例を示す断面図である。It is sectional drawing which shows an example of the laminated body which comprises the packaging material concerning this invention. 図1に示す包材をポリオレフィン系樹脂層の面からみた平面図を示す。The top view which looked at the packaging material shown in FIG. 1 from the surface of the polyolefin-type resin layer is shown. 図1に示す包材から形成した略扇形状ブランク板をポリオレフィン系樹脂層の面からみた平面図示す。The top view which looked at the substantially fan-shaped blank board formed from the packaging material shown in FIG. 1 from the surface of the polyolefin-type resin layer is shown. 図6に示す扇形のブランク板から形成した円錐状包装容器の一例を示す斜視図である。It is a perspective view which shows an example of the conical packaging container formed from the fan-shaped blank board shown in FIG. 図7に示す円錐状包装容器に円錐状内容物を充填包装した円錐状包装体の一例を示す斜視図である。It is a perspective view which shows an example of the conical packaging body which filled and packaged the conical content in the conical packaging container shown in FIG.

符号の説明Explanation of symbols

1 透明基材フィルム層
2 アルミニウム箔層
3 紙層
4 ポリオレフィン系樹脂層
5 印刷絵柄
10 扇形状ブランク
11 先端シール領域部
12 開封用ミシン目線
13 引裂き用摘み部
14、15 側端縁部
16 側端接合部
17 開口部
18 上端シール部
A、B、C、D 包材
E ブランク板
F 円錐状包装容器
G 円錐状包装体

DESCRIPTION OF SYMBOLS 1 Transparent base film layer 2 Aluminum foil layer 3 Paper layer 4 Polyolefin-type resin layer 5 Print pattern 10 Fan-shaped blank 11 Tip seal area | region 12 Opening perforation line 13 Tear knob | pick part 14, 15 Side edge part 16 Side edge Joint part 17 Opening part 18 Upper end seal part A, B, C, D Packaging material E Blank plate F Conical packaging container G Conical packaging body

Claims (3)

少なくとも紙層と最内層にポリオレフィン系樹脂層が積層された包装材料から略扇形状ブランク板を形成し、前記略扇形状ブランク板を逆円錐状に巻回して一方の側端縁部を他方の側端縁部の上に重ねて側端接合部で接合され、内容物を収納後、上縁部が、熱シール接合により封止される包材であって、前記扇形状ブランク板の前記一方の側端縁部における上端部から頂点にかけての帯状領域からなる第一の領域部分と、前記扇形状ブランク板の前記他方の側端縁部における上端部近傍の第二の領域部分における前記ポリオレフィン系樹脂層面にのみ接着補強処理が施されたことを特徴とする包材。 A substantially fan-shaped blank plate is formed from a packaging material in which at least a paper layer and an innermost layer are laminated with a polyolefin-based resin layer, and the substantially fan-shaped blank plate is wound in an inverted conical shape so that one side edge is placed on the other side. It is a packaging material that is overlapped on the side edge and joined at the side edge joint, and after the contents are stored, the upper edge is sealed by heat seal joining, and the one of the fan-shaped blank plates The polyolefin system in the first region part consisting of a belt-like region from the upper end part to the apex in the side edge part, and the second region part near the upper end part in the other side edge part of the fan-shaped blank plate A packaging material characterized in that an adhesive reinforcement treatment is applied only to the resin layer surface. 前記ポリオレフィン系樹脂層面に施す接着補強処理が、コロナ処理であることを特徴とする請求項1記載の包材。 The packaging material according to claim 1, wherein the adhesion reinforcing treatment applied to the polyolefin resin layer surface is corona treatment. 前記側端接合部をホットメルト接着剤で接合することを特徴とする請求項1記載の包材。 The packaging material according to claim 1, wherein the side end joint is joined with a hot-melt adhesive.
JP2005188946A 2005-06-28 2005-06-28 Packaging material Active JP4899355B2 (en)

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JP4850972B2 (en) * 2011-01-07 2012-01-11 株式会社アイペックス Information supply system using communication line
JP3169478U (en) * 2011-03-29 2011-08-04 日世株式会社 Edible container with sleeve and sleeve
JP7141198B2 (en) * 2016-10-31 2022-09-22 株式会社サンエー化研 heat treatment pack

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JPH08323927A (en) * 1995-06-01 1996-12-10 Dainippon Printing Co Ltd Resin film
JPH1059469A (en) * 1996-08-23 1998-03-03 Dainippon Printing Co Ltd Packaging bag for cone type icecream and package body by use thereof
JP2003165567A (en) * 2001-11-28 2003-06-10 Yoshikawa Kami Shoji Kk Lid material

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