JP2009126552A - Spout stopper, packaging container and manufacturing method for the container - Google Patents
Spout stopper, packaging container and manufacturing method for the container Download PDFInfo
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- JP2009126552A JP2009126552A JP2007303836A JP2007303836A JP2009126552A JP 2009126552 A JP2009126552 A JP 2009126552A JP 2007303836 A JP2007303836 A JP 2007303836A JP 2007303836 A JP2007303836 A JP 2007303836A JP 2009126552 A JP2009126552 A JP 2009126552A
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 75
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 230000004888 barrier function Effects 0.000 claims abstract description 63
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims description 46
- 229920005989 resin Polymers 0.000 claims description 46
- 239000005022 packaging material Substances 0.000 claims description 25
- 238000001746 injection moulding Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 18
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 6
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920013716 polyethylene resin Polymers 0.000 claims description 3
- 229920002845 Poly(methacrylic acid) Polymers 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 150000005846 sugar alcohols Polymers 0.000 claims description 2
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims 1
- 239000010408 film Substances 0.000 claims 1
- 229920000642 polymer Polymers 0.000 claims 1
- 238000007740 vapor deposition Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 45
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000000243 solution Substances 0.000 abstract 1
- 239000002648 laminated material Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 7
- 230000003313 weakening effect Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 230000035622 drinking Effects 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 235000021056 liquid food Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
Landscapes
- Cartons (AREA)
- Making Paper Articles (AREA)
- Closures For Containers (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
本発明は、飲料などを充填する容器用の注出口栓、包装容器及び包装容器の製造法器に関する。 The present invention relates to a spout stopper for a container filled with a beverage or the like, a packaging container, and a manufacturing device for the packaging container.
ジュースや牛乳などの液体食品などを充填したいくつかの容器においては、前もって折り目線が付されたウェブ状包装積層材料をチューブ状に成形し、チューブの縦線方向に縦シールし、チューブ状包装材料内に食品を充填し、所定間隔毎に横断方向の横シールにより密封し、横シール帯域中間で切断して枕状予備成形体を得、折り目線に沿って折り畳むことにより最終形状の容器を得る。 In some containers filled with liquid foods such as juice and milk, a web-like packaging laminate material with a crease line in advance is formed into a tube shape and vertically sealed in the direction of the vertical line of the tube. Fill the material with food, seal with a transverse seal in the transverse direction at predetermined intervals, cut in the middle of the transverse seal zone to obtain a pillow-shaped preform, and fold along the crease line to wrap the final shape container obtain.
包装容器は、種々の注出口栓を有する。破断可能なように封止された液体用紙容器の注出孔に設けられるスパウトと、スパウトを覆うキャップと、スパウトに内蔵された開封手段、例えば、開封刃及びプルリングなどとからなる注出口栓及びその液体用包装容器である。（特許文献１及び２参照） The packaging container has various spout stoppers. A spout plug comprising a spout provided in a spout hole of a liquid paper container sealed so as to be ruptured, a cap covering the spout, and an opening means incorporated in the spout, for example, an opening blade and a pull ring This is a liquid packaging container. (See Patent Documents 1 and 2)
破断可能なように封止された容器注出孔に設けられるスパウトと、スパウトを覆うキャップと、スパウトに内蔵された開封刃やプルリングなど開封手段とからなる注出口栓及びその液体用包装容器は、容器本体と相俟って容器内容物を外部酸素などから保護する酸素バリア性の必要がある。
しかも、注出口栓及び液体用包装容器は、低いコストで製造できなければならない。
A spout provided in a container pouring hole sealed so as to be ruptured, a cap covering the spout, and an opening blade and a pulling ring incorporated in the spout, and a liquid packaging container for the spout In combination with the container body, it is necessary to have an oxygen barrier property that protects the contents of the container from external oxygen and the like.
Moreover, the spout stopper and the liquid packaging container must be able to be manufactured at a low cost.
本発明は、上記の必要性、切望に応えるものであり、容器内容物を外部から保護す酸素バリア性を有し、低コストで製造できる注出口栓、包装容器及び包装容器の製造法を提供することを目的とする。 The present invention provides a spout stopper, a packaging container, and a method for producing a packaging container that meet the above-mentioned needs and desires, have an oxygen barrier property that protects the contents of the container from the outside, and can be produced at low cost. The purpose is to do.
この課題を解決する本発明の注出口栓は、液体用紙容器の注出孔に設けられた注出筒及び、注出筒と一体化して注出孔外周辺の容器壁と接合する基部を有するスパウトと、スパウトを封止するように内蔵された破断可能なプルタブとからなる注出口栓であって、
注出孔を容器内側から覆い、基部及びプルタブに亘って射出成形により一体成形されたガスバリアフィルムを有することを特徴とする。
The spout stopper of the present invention that solves this problem has a spout cylinder provided in a spout hole of a liquid paper container, and a base that is integrated with the spout cylinder and joined to a container wall around the spout hole. A spout plug comprising a spout and a breakable pull tab incorporated to seal the spout,
The outlet hole is covered from the inside of the container and has a gas barrier film integrally formed by injection molding over the base and the pull tab.
この発明の液体用包装容器は、折り目線を有するウェブ状積層包装材料がチューブ状に成形され、包装材料の両縁部が重ねられてオーバーラップが形成され、オーバーラップで縦線方向に縦シールされて縦シール帯域が形成され、チューブ状包装材料内に内容物が充填され、所定間隔毎に包装材料が横断方向に押圧され、横シールにより密封されて横シール帯域が形成され、横シール帯域中間で切断されて枕状予備成形体が得られ、折り目線に沿って折り畳むことにより形成される包装容器であって、
包装容器の頂壁の注出孔に設けられた注出筒及び、注出筒と一体化して注出孔外周辺の容器壁と接合する基部を有するスパウトと、スパウトを封止するように内蔵された破断可能なプルタブとからなる注出口栓を有し、
注出口栓が注出孔を容器内側から覆い、基部及びプルタブに亘って射出成形により一体成形されたガスバリアフィルムを備えることを特徴とする。
In the liquid packaging container of the present invention, a web-like laminated packaging material having a crease line is formed into a tube shape, and both edges of the packaging material are overlapped to form an overlap. The vertical sealing zone is formed, the contents are filled into the tubular packaging material, the packaging material is pressed in the transverse direction at predetermined intervals, and sealed by a horizontal seal to form a horizontal sealing zone. A packaging container formed by being cut along the crease line by being cut in the middle to obtain a pillow-shaped preform,
A spout tube provided in the pour hole on the top wall of the packaging container, a spout having a base that is integrated with the pour pipe and joined to the container wall outside the pour hole, and built in to seal the spout Having a spout tap consisting of a breakable pull tab
The spout stopper covers the spout hole from the inside of the container, and includes a gas barrier film integrally formed by injection molding over the base and the pull tab.
この発明の包装容器の製造法は、所定の折り目線を有するウェブ状積層包装材料が準備し、
ウェブ状積層包装材料を所定間隔ごとに穿孔して注出孔を形成し、
容器内側に対応する注出孔内側を覆うように、所定のキャビティを有し、内壁にガスバリアフィルムを載置した第１金型を配設し、容器外側に対応する注出孔外側を覆うように、所定のキャビティを有する第２金型を配設し、
キャビティ・ゲートから溶融樹脂をキャビティに射出して注出口栓の注出筒及びスパウトを成形し、
ウェブ状積層包装材料をチューブ状に成形し、包装材料の両縁部を重ねてオーバーラップを形成し、
オーバーラップで縦線方向に縦シールして縦シール帯域を形成し、
チューブ状包装材料内に内容物を充填し、
所定間隔毎に包装材料を横断方向に押圧し、横シールにより密封されて横シール帯域を形成し、
横シール帯域で切断して枕状予備成形体を得、
折り目線に沿って折り畳んで包装容器を得、
スパウトを覆うようにキャップを配設して、包装容器を製造する方法であって、
注出口栓が、包装容器の頂壁の注出孔に設けられた注出筒及び、注出筒と一体化して注出孔外周辺の容器壁と接合する基部を有するスパウトと、スパウトを覆うキャップと、スパウトを封止するように内蔵された破断可能なプルタブとからなる注出口栓を有し、
注出口栓が注出孔を容器内側から覆い、基部及びプルタブに亘って射出成形により一体成形されたガスバリアフィルムを備えることを特徴とする。
In the manufacturing method of the packaging container of the present invention, a web-shaped laminated packaging material having a predetermined crease line is prepared,
A web-shaped laminated packaging material is perforated at predetermined intervals to form an extraction hole,
A first mold having a predetermined cavity and a gas barrier film placed on the inner wall is disposed so as to cover the inside of the pouring hole corresponding to the inside of the container, and the outside of the pouring hole corresponding to the outside of the container is covered. A second mold having a predetermined cavity is disposed,
Injecting molten resin from the cavity gate into the cavity to mold the spout tube and spout of the spout plug,
Forming a web-like laminated packaging material into a tube shape, overlapping both edges of the packaging material to form an overlap,
A vertical seal zone is formed by vertical sealing in the vertical direction with overlap,
Fill the tubular packaging material with the contents,
The packaging material is pressed in the transverse direction at predetermined intervals, and is sealed by a transverse seal to form a transverse seal zone,
Cut at the horizontal sealing zone to obtain a pillow-shaped preform,
Fold along the crease line to obtain a packaging container,
A method of manufacturing a packaging container by arranging a cap so as to cover a spout,
A spout stopper covers the spout with a spout tube provided in a spout hole in the top wall of the packaging container, a spout having a base that is integrated with the spout tube and joined to the container wall around the spout hole, and the spout Having a spout tap consisting of a cap and a breakable pull tab built in to seal the spout;
The spout stopper covers the spout hole from the inside of the container, and includes a gas barrier film integrally formed by injection molding over the base and the pull tab.
この発明の好ましい態様において、キャビティ・ゲートが設けられた第１金型を用い、キャビティ・ゲートに対向する位置にガスバリアフィルムが溶融樹脂用の通過孔を有する。 In a preferred embodiment of the present invention, the first mold provided with the cavity gate is used, and the gas barrier film has a passage hole for the molten resin at a position facing the cavity gate.
この発明の好ましい態様において、キャビティ・ゲートが設けられた第１金型を用い、ガスバリアフィルムが射出溶融樹脂の圧力により破断可能なフィルムである。 In a preferred aspect of the present invention, the gas barrier film is a film that can be broken by the pressure of the injection molten resin using the first mold provided with the cavity gate.
この発明の好ましい態様において、ガスバリアフィルムがアルミニウム箔を含む。 In a preferred embodiment of the present invention, the gas barrier film includes an aluminum foil.
この発明の好ましい態様において、ガスバリアフィルムがポリエチレン樹脂の内外層とアルミニウム箔中間層とからなる。 In a preferred embodiment of the present invention, the gas barrier film is composed of inner and outer layers of polyethylene resin and an aluminum foil intermediate layer.
この発明の好ましい態様において、ガスバリアフィルムが、金属酸化物蒸着フィルム、ポリアミド、ＥＶＯＨ又はポリ（メタ）アクリル酸とポリアルコールとのブレンドポリマーのフィルムを含む。 In a preferred embodiment of the present invention, the gas barrier film includes a metal oxide vapor-deposited film, a polyamide, EVOH, or a blend polymer film of poly (meth) acrylic acid and polyalcohol.
以上の本発明によれば、以下の有利な効果が得られる。
本発明では、液体用紙容器の注出孔に設けられた注出筒及び、注出筒と一体化して注出孔外周辺の容器壁と接合する基部を有するスパウトと、好ましくはスパウトを覆うキャップと、スパウトを封止するように内蔵された破断可能なプルタブとからなる注出口栓であり、注出孔を容器内側から覆い、基部及びプルタブに亘って射出成形により一体成形されたガスバリアフィルムを有する。
容器の器壁がない注出孔及び、ガスバリア性のないプラスチックからなるスパウトにおいて、外部酸素ガスなどが浸透する恐れがある。この発明において、注出孔をガスバリア性のフィルムで覆っているので、容器内容物を外部酸素ガスなどから保護し、このバリアフィルムが、基部及びプルタブに亘って射出成形により形成されているので、安価にかつ確実のバリア性を付与することができる。
According to the present invention described above, the following advantageous effects can be obtained.
In the present invention, a spout tube provided in a pour hole of the liquid paper container, a spout having a base that is integrated with the pour tube and joined to a container wall around the pour hole, and preferably a cap that covers the spout And a breakable pull tab incorporated so as to seal the spout, and a gas barrier film integrally formed by injection molding covering the pouring hole from the inside of the container and covering the base and the pull tab. Have.
There is a risk that external oxygen gas or the like may permeate through a spout hole without a container wall and a spout made of plastic without gas barrier properties. In this invention, since the dispensing hole is covered with a gas barrier film, the container contents are protected from external oxygen gas and the like, and since this barrier film is formed by injection molding over the base and the pull tab, A reliable barrier property can be imparted at low cost.
注出孔を容器内側から覆うガスバリアフィルムが、注出口栓と一体成形されるので、開封時にプルタブを引き上げると、プルタブの弱め線で破断し、プルタブと共に、一体化されたガスバリアフィルムも引き上げられる。開封時に、正確に設計通りにスパウトから離脱し、飲用時に容器内部に残留若しくは落下することを防止することができる。 Since the gas barrier film that covers the dispensing hole from the inside of the container is integrally formed with the spout stopper, when the pull tab is pulled up at the time of opening, it breaks at the weak line of the pull tab, and the gas barrier film integrated with the pull tab is also pulled up. It is possible to prevent the spout from leaving the spout exactly as designed at the time of opening and remaining or falling into the container at the time of drinking.
ガスバリアフィルムが注出孔を容器内側から覆い、ガスバリアフィルムが注出口栓と一体成形されるので、ガスバリアフィルムと基部とでスパウトを容器壁に固定し、開封時及び飲用時にスパウトが容器から外れたり歪んだりさせなく、信頼性を高めることができる。 The gas barrier film covers the spout hole from the inside of the container, and the gas barrier film is integrally formed with the spout stopper. Therefore, the spout is fixed to the container wall with the gas barrier film and the base, and the spout is detached from the container when opening and drinking. Reliability can be improved without distortion.
この発明の注出口栓及び液体用包装容器では、注出口栓の構成要素（ガスバリアフィルム、注出筒及びスパウト）が一体化されているので、この構成要素を直接にウェブ状積層包装材料の注出孔に射出成形（インジェクション成型）法により成形でき、注出口栓及び液体用包装容器は、低いコストで製造することができる。 In the spout stopper and the liquid packaging container of the present invention, the constituent elements (gas barrier film, spout tube and spout) of the spout stopper are integrated, so that the constituent elements can be directly poured into the web-like laminated packaging material. The outlet hole can be molded by an injection molding (injection molding) method, and the spout stopper and the liquid packaging container can be manufactured at a low cost.
本発明は注出口栓及び液体用包装容器は、容器内容物を外部から保護し、低コストで製造されることができる。また、開封時に開封手段が設計通りにスパウトから離脱し、飲用時に容器内部に残留若しくは落下することがない高い信頼性を有する。 In the present invention, the spout stopper and the liquid packaging container can be manufactured at low cost by protecting the contents of the container from the outside. In addition, the opening means is released from the spout as designed at the time of opening, and has high reliability so that it does not remain or fall into the container at the time of drinking.
以下、本発明の実施の形態について図面を参照しながら詳細に説明する。
図１は、この発明による注出口栓の一実施例のスパウト部分の製造（射出溶融樹脂の流れ１）を示すの断面図である。
図２は、この発明による注出口栓の一実施例のスパウト部分の製造（射出溶融樹脂の流れ２）を示すの断面図である。
図３は、この発明による注出口栓の一実施例のスパウト部分の製造（射出溶融樹脂の流れ３）を示すの断面図である。
図４は、この発明による注出口栓の一実施例のスパウト部分の製造（溶融樹脂の射出前０）を示すの断面図である。
図５は、この発明による注出口栓の別実施例のスパウト部分の製造（射出溶融樹脂の流れ１）を示すの断面図である。
図６は、この発明による注出口栓の別実施例のスパウト部分の製造（射出溶融樹脂の流れ２）を示すの断面図である。
図７は、この発明による注出口栓の別実施例のスパウト部分の製造（射出溶融樹脂の流れ３）を示すの断面図である。
図８は、注出口栓の参考例の射出成形を示す断面図である。
図９は、注出口栓の参考例の射出成形工程を示すの断面図である。
図１０は、この発明による包装容器の包装充填装置例の概略斜視図である。
図１１は、注出口栓がない包装容器例（Ａ）及び、この発明による包装容器例（Ｂ）の斜視図である。
図１２は、キャップを外した注出口栓付き包装容器例（Ａ）及びこの発明による包装容器例（Ｂ）の斜視図である。
図１３は、この発明による注出口栓のスパウト部分の外観斜視図である。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a cross-sectional view showing the production (injection molten resin flow 1) of a spout part of one embodiment of the spout stopper according to the present invention.
FIG. 2 is a cross-sectional view showing the production of a spout portion (injection molten resin flow 2) of one embodiment of the spout stopper according to the present invention.
FIG. 3 is a cross-sectional view showing the production of spout portion (injection molten resin flow 3) of one embodiment of the spout stopper according to the present invention.
FIG. 4 is a cross-sectional view showing the manufacture (0 before injection of molten resin) of the spout portion of one embodiment of the spout stopper according to the present invention.
FIG. 5 is a cross-sectional view showing the production of a spout portion (injection molten resin flow 1) of another embodiment of the spout stopper according to the present invention.
FIG. 6 is a cross-sectional view showing the production of a spout portion (injection molten resin flow 2) of another embodiment of the spout stopper according to the present invention.
FIG. 7 is a cross-sectional view showing the production of spout portion (injection molten resin flow 3) of another embodiment of the spout stopper according to the present invention.
FIG. 8 is a cross-sectional view showing injection molding of a reference example of the spout stopper.
FIG. 9 is a cross-sectional view showing an injection molding process of a reference example of the spout stopper.
FIG. 10 is a schematic perspective view of an example of a packaging and filling apparatus for packaging containers according to the present invention.
FIG. 11 is a perspective view of a packaging container example (A) having no spout stopper and a packaging container example (B) according to the present invention.
FIG. 12 is a perspective view of a packaging container example (A) with a spout stopper with the cap removed and a packaging container example (B) according to the present invention.
FIG. 13 is an external perspective view of the spout portion of the spout stopper according to the present invention.
図１０に示される包装充填装置によって、包装容器を製造する。この装置例では、ウェブ状（帯状）の包装積層材料１は、リールの状態で包装充填装置に収容される。包装積層材料１は、紙基材、及び該紙基材の両面にポリエチレン樹脂が積層された可撓性の積層体から成り、紙基材とフィルムとの間にアルミニウム箔などのバリア層が形成され、包装容器１４の表面に相当する部分にあらかじめ外装用の印刷が施される。 A packaging container is manufactured by the packaging filling apparatus shown in FIG. In this apparatus example, the web-like (band-like) packaging laminate material 1 is accommodated in a packaging filling apparatus in a reel state. The packaging laminate material 1 comprises a paper base material and a flexible laminate in which polyethylene resin is laminated on both sides of the paper base material, and a barrier layer such as an aluminum foil is formed between the paper base material and the film. Then, exterior printing is performed in advance on a portion corresponding to the surface of the packaging container 14.
繰り出された包装積層材料１は、搬送手段としての送り装置によって連続的に搬送され、ベンディングローラ、ダンパローラ等を経てウェブ状包装積層材料１は、パンチング装置４０によって所定間隔ごとに穿孔され注出孔が形成される。
引き続き、注出口栓のスパウト部分形成用インジェクション成形装置４１によって注出孔の注出口栓のスパウト部分が形成されてる。
The fed packaging laminated material 1 is continuously conveyed by a feeding device as a conveying means, and the web-shaped packaging laminated material 1 is punched at predetermined intervals by a punching device 40 through a bending roller, a damper roller, and the like. Is formed.
Subsequently, the spout portion of the spout hole of the spout hole is formed by the injection molding device 41 for forming the spout portion of the spout plug.
インジェクション成形装置４１による注出口栓の参考例の射出成形を示す断面図である図８及び、その注出口栓の参考例の射出成形工程を示すの断面図である図９を参照し用いて、この発明による実施例の注出口栓の射出成形の工程を説明する。 With reference to FIG. 8 which is a sectional view showing injection molding of a reference example of the spout stopper by the injection molding device 41 and FIG. 9 which is a sectional view showing an injection molding process of the reference example of the spout stopper, An injection molding process of the spout stopper according to the embodiment of the present invention will be described.
図８に、参考例のスパウト部分形成用インジェクション成形装置例を示す。
このスパウト部分形成用インジェクション成形装置によって参考例の注出口栓のスパウト部分が形成される。
この装置では、容器内側に対応する注出孔内側を覆うように、所定のキャビティを有し、内壁にガスバリアフィルム１３を載置した第１金型１５を配設し、容器外側に対応する注出孔外側を覆うように、所定のキャビティを有する第２金型１６を配設する。キャビティ・ゲート１７から溶融樹脂（ポリエチレン、ポリプロピレンなどのポリオレフィンなど）をキャビティに射出して注出口栓の注出筒５及びスパウト１０を成形し、ガスバリアフィルム１３と一体化する。
FIG. 8 shows an example of a spout part forming injection molding apparatus of a reference example.
The spout part of the spout stopper of the reference example is formed by this spout part forming injection molding apparatus.
In this apparatus, a first mold 15 having a predetermined cavity and having a gas barrier film 13 placed on the inner wall is disposed so as to cover the inside of the pouring hole corresponding to the inside of the container, and the pouring corresponding to the outside of the container is performed. A second mold 16 having a predetermined cavity is disposed so as to cover the outside of the outlet hole. A molten resin (polyolefin such as polyethylene and polypropylene) is injected into the cavity from the cavity gate 17 to form the spout tube 5 and spout 10 of the spout stopper, and is integrated with the gas barrier film 13.
参考例の注出口栓の図９を参照して、この発明による実施例の射出成形工程を説明する。
ウェブ状積層包装材料１を矢印の方向に搬送し、ウェブ状積層包装材料１をパンチング装置（図示せず）で所定間隔ごとに穿孔して注出孔４２を形成する。
With reference to FIG. 9 of the spout stopper of the reference example, the injection molding process of the embodiment according to the present invention will be described.
The web-shaped laminated packaging material 1 is conveyed in the direction of the arrow, and the web-shaped laminated packaging material 1 is punched at predetermined intervals by a punching device (not shown) to form the dispensing holes 42.
容器内側に対応する注出孔４２内側を覆うように、所定のキャビティを有し、内壁にガスバリアフィルム１３を載置した第１金型１５を配設し、容器外側に対応する注出孔４２外側を覆うように、所定のキャビティを有する第２金型１６を配設する。
キャビティ・ゲート（図示せず）から溶融樹脂をキャビティに射出して注出口栓の注出筒５及びスパウト１０を成形する。
A first mold 15 having a predetermined cavity and having the gas barrier film 13 placed on the inner wall is disposed so as to cover the inside of the pouring hole 42 corresponding to the inside of the container, and the pouring hole 42 corresponding to the outside of the container. A second mold 16 having a predetermined cavity is disposed so as to cover the outside.
The molten resin is injected into the cavity from a cavity gate (not shown) to mold the spout cylinder 5 and spout 10 of the spout stopper.
続いて、図１０に示すように、シーリングテープ貼着装置３に送られ、シーリングテープ貼着装置によって包装積層材料１の一方の縁部に沿ってシーリングテープが貼着される。
帯状包装積層材料１の縁部にシーリングテープを接合する際、帯状包装積層材料とシーリングテープとを挟んで、一方側に、プレッシャローラを配設して圧し、他方に、プレッシャローラによる圧力を受け、それに対向し、押さえ支持するようにカウンタローラを配設する。
Then, as shown in FIG. 10, it sends to the sealing tape sticking apparatus 3, and a sealing tape is stuck along one edge part of the packaging laminated material 1 by a sealing tape sticking apparatus.
When the sealing tape is joined to the edge of the strip-shaped packaging laminate material 1, the pressure-roller is disposed and pressed on one side with the strip-shaped packaging laminate material and the sealing tape sandwiched therebetween, and the pressure applied to the other side by the pressure roller. A counter roller is disposed so as to face and hold the counter roller.
包装積層材料が搬送されるに伴って、プレッシャローラ及びカウンタローラが包装積層材料及びシーリングテープを挟んだ状態で押圧されて回転させ、縦シール部の合せ面がシールされ接着される。 As the packaging laminate material is conveyed, the pressure roller and the counter roller are pressed and rotated with the packaging laminate material and the sealing tape sandwiched therebetween, and the mating surfaces of the vertical seal portions are sealed and bonded.
包装積層材料１は、殺菌槽４に送られ、殺菌槽４において過酸化水素等の殺菌液によって殺菌される。包装積層材料１は、エアナイフに送られ、エアナイフによって乾燥させられた後、無菌室（図示せず）に送られる。そして、包装積層材料１は、成形リング７によって徐々に変形させられてチューブ状（筒状）の形状にされる。包装積層材料１は、縦シール装置２０によって縦方向にシールされ、充填パイプ（図示せず）を介して供給された流動性食品が包装積層材料１内に充填される。 The packaging laminated material 1 is sent to the sterilization tank 4 and sterilized with a sterilization liquid such as hydrogen peroxide in the sterilization tank 4. The packaging laminate material 1 is sent to an air knife, dried by the air knife, and then sent to a sterilization chamber (not shown). Then, the packaging laminate material 1 is gradually deformed by the molding ring 7 and is formed into a tube shape (tubular shape). The packaging laminate material 1 is sealed in the longitudinal direction by the longitudinal sealing device 20, and the fluid food supplied via a filling pipe (not shown) is filled into the packaging laminate material 1.
チューブ状に成形された包装積層材料の両縁部同士を、縦シール装置２０によってシーリングテープと共に押し当てて縦シールする際、帯状包装積層材料の一の縁部と他方の縁部とを挟んで、一方側に、プレッシャローラを回転自在に配設して圧し、他方に、プレッシャローラによる圧力を受け、それに対向し、押さえ支持するようにカウンタローラを回転自在に配設し、縦シール部の合せ面がシールされ接着される。 When both ends of the packaging laminate material formed into a tube shape are pressed together with the sealing tape by the longitudinal seal device 20 for longitudinal sealing, the one edge and the other edge of the strip packaging laminate material are sandwiched between them. The pressure roller is rotatably arranged and pressed on one side, and the counter roller is rotatably arranged on the other side so as to receive pressure from the pressure roller so as to oppose and support the pressure roller. The mating surfaces are sealed and bonded.
チューブ状包装積層材料は、ローラによって案内され、横シール装置（図示せず）に送られ、挟まれて横方向にシールされ、横シールされた包装積層材料は、ナイフなどで切断されて枕状予備成形体２１が形成される。
枕状予備成形体２１は、最終成形装置（図示せず）によって最終の形状に成形され、流動性食品を収容する包装容器１４が完成する。
図１１（Ａ）に、注出孔４２に注出口栓がない包装容器例の外観斜視図を示す。図１１（Ｂ）に、実施例による包装容器例の斜視図を示す。この例において、包装容器１４の頂壁３に注出筒５及びスパウト１０が一体的に形成され、キャップ２で覆われている
The tubular packaging laminate material is guided by a roller, sent to a lateral sealing device (not shown), sandwiched and sealed in the lateral direction, and the laterally sealed packaging laminate material is cut with a knife or the like to form a pillow. A preform 21 is formed.
The pillow-shaped preform 21 is molded into a final shape by a final molding apparatus (not shown), and the packaging container 14 that stores the fluid food is completed.
FIG. 11A shows an external perspective view of a packaging container example in which the spout hole 42 does not have a spout stopper. FIG. 11B shows a perspective view of an example packaging container according to the embodiment. In this example, the pouring cylinder 5 and the spout 10 are integrally formed on the top wall 3 of the packaging container 14 and covered with the cap 2.
図１０に示す包装充填装置例では、最終成形装置の製造ライン下流側にキャップ装着装置を備える。
図１２（Ａ）、（Ｂ）に示すように、包装容器１４の頂壁３の注出筒５及びスパウト１０の上方から、キャップ装着装置によってキャップ１１が装着される。
In the example of the packaging filling apparatus shown in FIG. 10, a cap mounting apparatus is provided on the downstream side of the production line of the final molding apparatus.
As shown in FIGS. 12A and 12B, the cap 11 is mounted by the cap mounting device from above the dispensing cylinder 5 and the spout 10 on the top wall 3 of the packaging container 14.
図１〜図４を参照して、中央にキャビティ・ゲート１７が設けられた第１金型１５を用い、キャビティ・ゲート１７に対向する位置にガスバリアフィルム１３が溶融樹脂用の通過孔１３ａを有する態様を説明する。
図４に示すように、容器内側に対応する注出孔内側を覆うように、所定のキャビティを有し、内壁にガスバリアフィルム１３を載置した第１金型１５を配設し、容器外側に対応する注出孔外側を覆うように、所定のキャビティを有する第２金型１６を配設する。
包装材料１に形成された孔を挟んで、注出筒５のキャビティ、容器壁と接合する基部６のキャビティ、スパウトを封止するプルタブ８のキャビティ、プルタブ８を引っ張るプルリング９のキャビティが形成される。プルタブ８の外周に弱め線６０が形成され、破断可能なプルタブとからなる。
1 to 4, a first mold 15 having a cavity gate 17 provided at the center is used, and a gas barrier film 13 has a passage hole 13a for molten resin at a position facing the cavity gate 17. A mode is demonstrated.
As shown in FIG. 4, a first mold 15 having a predetermined cavity and having a gas barrier film 13 placed on the inner wall is disposed so as to cover the inside of the pouring hole corresponding to the inside of the container. The 2nd metal mold | die 16 which has a predetermined cavity is arrange | positioned so that the corresponding pouring hole outer side may be covered.
By sandwiching the hole formed in the packaging material 1, the cavity of the pouring cylinder 5, the cavity of the base 6 joined to the container wall, the cavity of the pull tab 8 that seals the spout, and the cavity of the pull ring 9 that pulls the pull tab 8 are formed. The A weakening line 60 is formed on the outer periphery of the pull tab 8 and is composed of a breakable pull tab.
図１に示すように、キャビティ・ゲート１７から溶融樹脂１９をキャビティに射出する。キャビティ・ゲート１７に対向する位置にガスバリアフィルム１３が溶融樹脂用の通過孔１３ａを有するので、溶融樹脂１９はガスバリアフィルム１３の上面を流れる。図１に示す状態では、プルタブ８のキャビティを矢印に示すように溶融樹脂１９が射出されて流動する。 As shown in FIG. 1, molten resin 19 is injected from the cavity gate 17 into the cavity. Since the gas barrier film 13 has the molten resin passage hole 13 a at a position facing the cavity gate 17, the molten resin 19 flows on the upper surface of the gas barrier film 13. In the state shown in FIG. 1, the molten resin 19 is injected and flows through the cavity of the pull tab 8 as indicated by an arrow.
図２に示すように、キャビティ・ゲート１７から溶融樹脂１９を更にキャビティに射出する。ガスバリアフィルム１３が溶融樹脂用の通過孔１３ａを通過して、溶融樹脂１９はガスバリアフィルム１３の上面を流れ、弱め線６０に、プルリング９のキャビティに到達する。 As shown in FIG. 2, the molten resin 19 is further injected into the cavity from the cavity gate 17. The gas barrier film 13 passes through the molten resin passage hole 13 a, and the molten resin 19 flows on the upper surface of the gas barrier film 13 and reaches the cavity of the pull ring 9 through the weakening line 60.
図３に示すように、キャビティ・ゲート１７から溶融樹脂１９を更にキャビティに射出する。ガスバリアフィルム１３が溶融樹脂用の通過孔１３ａを通過して、溶融樹脂１９はガスバリアフィルム１３の上面を流れ、弱め線６０のスリットを通過し、また、プルリング９のキャビティを満たす。
この態様では、ガスバリアフィルム１３を概ね破断すること無くキャビティに射出することができ、バリア性をより完全に付与することができる。
更に、溶融樹脂１９を更にキャビティに射出して、注出口栓の注出筒及びスパウトを成形する。
As shown in FIG. 3, the molten resin 19 is further injected into the cavity from the cavity gate 17. The gas barrier film 13 passes through the molten resin passage hole 13 a, and the molten resin 19 flows through the upper surface of the gas barrier film 13, passes through the slit of the weakening line 60, and fills the cavity of the pull ring 9.
In this aspect, the gas barrier film 13 can be injected into the cavity almost without breaking, and the barrier property can be more completely imparted.
Further, the molten resin 19 is further injected into the cavity, and the spout tube and spout of the spout stopper are formed.
図４〜図７を参照して、中央にキャビティ・ゲート１７が設けられた第１金型１５を用い、キャビティ・ゲートが設けられた第１金型を用い、ガスバリアフィルムが射出溶融樹脂の圧力により破断可能なフィルムである態様を説明する。 4-7, using the 1st metal mold | die 15 with which the cavity gate 17 was provided in the center, and using the 1st metal mold | die with which the cavity gate was provided, the gas barrier film is the pressure of injection molten resin. An embodiment that is a breakable film will be described.
この実施例によるフィルムは、ガスバリア性を有する材料が用いられ、それらが積層された材料であってもよい。ガスバリア性を有する材料には、酸素などのガス、芳香などに関して遮断性を有するバリア性包装材料であって、アルミニウムなどの金属箔、エチレンービニルアルコール共重合体（ＥＶＯＨ）、ナイロンなどのポリアミド（ＰＡ）、ケイ素酸化物（ＳｉＯｘ）などを蒸着したプラスチックフィルム、ポリエチレンテレフタレート（ＰＥＴ）などがある。 The film according to this embodiment is made of a material having a gas barrier property, and may be a material in which they are laminated. The material having a gas barrier property is a barrier packaging material having a barrier property with respect to gas such as oxygen, fragrance and the like, such as metal foil such as aluminum, ethylene-vinyl alcohol copolymer (EVOH), polyamide such as nylon ( PA, plastic films deposited with silicon oxide (SiOx), polyethylene terephthalate (PET), and the like.
図４に示すように、注出孔内側を覆うように、所定のキャビティを有し、内壁にガスバリアフィルム１３を載置した第１金型１５を配設し、注出孔外側を覆うように、所定のキャビティを有する第２金型１６を配設する。
注出筒５のキャビティ、容器壁と接合する基部６のキャビティ、スパウトを封止するプルタブ８のキャビティ、プルタブ８を引っ張るプルリング９のキャビティが形成される。プルタブ８の外周に弱め線６０が形成され、破断可能なプルタブとからなる。
As shown in FIG. 4, a first mold 15 having a predetermined cavity and having a gas barrier film 13 placed on the inner wall is disposed so as to cover the inside of the pouring hole, and so as to cover the outer side of the pouring hole. A second mold 16 having a predetermined cavity is disposed.
A cavity of the dispensing cylinder 5, a cavity of the base 6 joined to the container wall, a cavity of the pull tab 8 that seals the spout, and a cavity of the pull ring 9 that pulls the pull tab 8 are formed. A weakening line 60 is formed on the outer periphery of the pull tab 8 and is composed of a breakable pull tab.
図５に示すように、キャビティ・ゲート１７から溶融樹脂１９をキャビティに射出する。ガスバリアフィルム１３を溶融樹脂が押し上げ、溶融樹脂１９はガスバリアフィルム１３の下面を流れる。図５に示す状態では、プルタブ８のキャビティを矢印に示すように溶融樹脂１９が射出されて流動する。 As shown in FIG. 5, molten resin 19 is injected from the cavity gate 17 into the cavity. The molten resin pushes up the gas barrier film 13, and the molten resin 19 flows on the lower surface of the gas barrier film 13. In the state shown in FIG. 5, the molten resin 19 is injected and flows through the cavity of the pull tab 8 as indicated by the arrow.
図６に示すように、キャビティ・ゲート１７から溶融樹脂１９を更にキャビティに射出する。ガスバリアフィルム１３を溶融樹脂が更に押し上げ、溶融樹脂１９はガスバリアフィルム１３の下面を流れ、一部は弱め線６０に、ガスバリアフィルム１３を破ってプルリング９のキャビティに到達する。 As shown in FIG. 6, the molten resin 19 is further injected into the cavity from the cavity gate 17. The molten resin further pushes up the gas barrier film 13, and the molten resin 19 flows on the lower surface of the gas barrier film 13, and a part thereof breaks the gas barrier film 13 and reaches the cavity of the pull ring 9.
図７に示すように、キャビティ・ゲート１７から溶融樹脂１９を更にキャビティに射出する。溶融樹脂１９はガスバリアフィルム１３の下面を流れ、弱め線６０の隙間を通過しガスバリアフィルム１３を破って注出筒５のキャビティに到達し、また、プルリング９のキャビティを満たす。
この態様では、ガスバリアフィルム１３を一部破断がするが、ガスバリアフィルム１３によって、バリア性を良好に付与することができる。
更に、溶融樹脂１９を更にキャビティに射出して、注出口栓の注出筒５及びスパウト１０の成形を完了する。
As shown in FIG. 7, the molten resin 19 is further injected into the cavity from the cavity gate 17. The molten resin 19 flows on the lower surface of the gas barrier film 13, passes through the gap of the weakening line 60, breaks the gas barrier film 13, reaches the cavity of the dispensing cylinder 5, and fills the cavity of the pull ring 9.
In this embodiment, the gas barrier film 13 is partially broken, but the gas barrier film 13 can provide a good barrier property.
Further, the molten resin 19 is further injected into the cavity, and the molding of the spout cylinder 5 and spout 10 of the spout stopper is completed.
図１３に、この実施例による注出口栓のスパウト部分の外観を示す。
注出口栓例は、容器の注出孔に設けられ、外周に凸ねじ山を有する注出筒５及び、注出筒５と一体化して注出孔外周辺の容器壁と接合する基部６を有する円筒状のスパウト１０と、スパウト１０内部底面に形成されたプルタブ８と、プルタブ８に連結し開封時に使用されるプルリング９とからなる。
In FIG. 13, the external appearance of the spout part of the spout stopper by this Example is shown.
An example of a spout stopper includes a spout cylinder 5 having a convex thread on the outer periphery and a base 6 that is integrated with the spout cylinder 5 and joined to a container wall around the spout hole. The spout 10 has a cylindrical spout 10, a pull tab 8 formed on the inner bottom surface of the spout 10, and a pull ring 9 connected to the pull tab 8 and used at the time of opening.
なお、本発明は前記実施の形態に限定されるものではなく、本発明の趣旨に基づいて種々変形させることが可能であり、それらを本発明の範囲から排除するものではない。 In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.
この発明は、ジュース、牛乳などの飲料を包装充填する注出口栓付き液体用包装容器の製造に適用することができる。 The present invention can be applied to the production of a liquid packaging container with a spout stopper for packaging and filling beverages such as juice and milk.
５ ・・ 注出筒
６ ・・ 基部
７ ・・ スパウト
８ ・・ プルタブ
９ ・・ プルリング
１０ ・・ スパウト
１３ ・・ バリアフィルム
１５ ・・ 第１金型
１６ ・・ 第２金型
１７ ・・ ゲート
１９ ・・ 溶融樹脂
5 ················································································· 8 .. Molten resin
Claims (8)
該注出孔を容器内側から覆い、該基部及び該プルタブに亘って射出成形により一体成形されたガスバリアフィルムを有する
ことを特徴とする注出口栓。 A spout tube provided in a pour hole of the liquid paper container, a spout having a base unit integrated with the pour tube and joined to a container wall outside the pour hole, and sealing the spout A spout tap comprising a built-in breakable pull tab,
A spout stopper, comprising a gas barrier film that covers the spout hole from the inside of the container and is integrally formed by injection molding over the base and the pull tab.
該包装容器の頂壁の注出孔に設けられた注出筒及び、該注出筒と一体化して該注出孔外周辺の容器壁と接合する基部を有するスパウトと、該スパウトを封止するように内蔵された破断可能なプルタブとからなる注出口栓を有し、
該注出口栓が該注出孔を容器内側から覆い、該基部及び該プルタブに亘って射出成形により一体成形されたガスバリアフィルムを備える
ことを特徴とする包装容器。 A web-like laminated packaging material having a crease line is formed into a tube shape, and both edges of the packaging material are overlapped to form an overlap, and the overlap is longitudinally sealed in the vertical line direction to form a longitudinal seal zone. The tubular packaging material is filled with the contents, the packaging material is pressed in the transverse direction at predetermined intervals, sealed by a transverse seal to form a transverse seal zone, and cut in the middle of the transverse seal zone. A pillow-shaped preform is obtained and is a packaging container formed by folding along the crease line,
A spout tube provided in a pour hole on the top wall of the packaging container, a spout having a base portion integrated with the pour pipe and joined to a container wall outside the pour hole, and sealing the spout Has a spout tap consisting of a breakable pull tab built in,
A packaging container comprising: a gas barrier film which is formed by injection molding so that the spout stopper covers the spout hole from the inside of the container and extends over the base and the pull tab.
ウェブ状積層包装材料を所定間隔ごとに穿孔して注出孔を形成し、
容器内側に対応する注出孔内側を覆うように、所定のキャビティを有し、内壁にガスバリアフィルムを載置した第１金型を配設し、容器外側に対応する注出孔外側を覆うように、所定のキャビティを有する第２金型を配設し、
キャビティ・ゲートから溶融樹脂を該キャビティに射出して注出口栓の注出筒及びスパウトを成形し、
ウェブ状積層包装材料をチューブ状に成形し、該包装材料の両縁部を重ねてオーバーラップを形成し、
該オーバーラップで縦線方向に縦シールして縦シール帯域を形成し、
該チューブ状包装材料内に内容物を充填し、
所定間隔毎に該包装材料を横断方向に押圧し、横シールにより密封されて横シール帯域を形成し、
横シール帯域で切断して枕状予備成形体を得、
該折り目線に沿って折り畳んで包装容器を得、
該スパウトを覆うようにキャップを配設して、包装容器を製造する方法であって、
該注出口栓が、該包装容器の頂壁の注出孔に設けられた注出筒及び、該注出筒と一体化して該注出孔外周辺の容器壁と接合する基部を有するスパウトと、該スパウトを覆うキャップと、該スパウトを封止するように内蔵された破断可能なプルタブとからなる注出口栓を有し、
該注出口栓が該注出孔を容器内側から覆い、該基部及び該プルタブに亘って射出成形により一体成形されたガスバリアフィルムを備える
ことを特徴とする包装容器の製造法。 A web-like laminated packaging material having a predetermined crease line is prepared,
A web-shaped laminated packaging material is perforated at predetermined intervals to form an extraction hole,
A first mold having a predetermined cavity and a gas barrier film placed on the inner wall is disposed so as to cover the inside of the pouring hole corresponding to the inside of the container, and the outside of the pouring hole corresponding to the outside of the container is covered. A second mold having a predetermined cavity is disposed,
Injecting molten resin from the cavity gate into the cavity to mold the spout tube and spout of the spout plug,
Forming a web-like laminated packaging material into a tube shape, overlapping both edges of the packaging material to form an overlap,
A vertical seal zone is formed by vertical sealing in the vertical direction with the overlap,
Fill the tubular packaging material with the contents,
The packaging material is pressed in the transverse direction at predetermined intervals, and is sealed by a transverse seal to form a transverse seal zone,
Cut at the horizontal sealing zone to obtain a pillow-shaped preform,
Fold along the crease line to obtain a packaging container,
A method of manufacturing a packaging container by arranging a cap so as to cover the spout,
A spout having a spout tube provided in a spout hole in the top wall of the packaging container, and a base part integrated with the spout tube and joined to a container wall around the spout hole; A spout plug comprising a cap covering the spout and a breakable pull tab incorporated to seal the spout;
A method for producing a packaging container, comprising: a gas barrier film that covers the pouring hole from the inside of the container, and is integrally formed by injection molding across the base and the pull tab.
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