JP6586761B2 - Self-supporting container - Google Patents
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- JP6586761B2 JP6586761B2 JP2015077535A JP2015077535A JP6586761B2 JP 6586761 B2 JP6586761 B2 JP 6586761B2 JP 2015077535 A JP2015077535 A JP 2015077535A JP 2015077535 A JP2015077535 A JP 2015077535A JP 6586761 B2 JP6586761 B2 JP 6586761B2
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- 230000004927 fusion Effects 0.000 claims description 22
- -1 polyethylene terephthalate Polymers 0.000 description 15
- 239000004698 Polyethylene Substances 0.000 description 9
- 229920000573 polyethylene Polymers 0.000 description 7
- 229920000139 polyethylene terephthalate Polymers 0.000 description 7
- 239000005020 polyethylene terephthalate Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 4
- 239000004840 adhesive resin Substances 0.000 description 3
- 229920006223 adhesive resin Polymers 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000009820 dry lamination Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920006122 polyamide resin Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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- Bag Frames (AREA)
Description
本発明は、フィルムで構成された容器であって、上下に折り込み部を有し、内容物が少なくなっても注出しやすい自立可能な包装容器に関する。 The present invention relates to a self-supporting packaging container that is formed of a film and has folding portions at the top and bottom and can be easily poured out even when the content is reduced.
ブローボトルのような自立性があり、樹脂使用量が少ないフィルムで構成される自立性容器は、中間フィルムを底側に折り込んで設けることにより開発され、簡単な機構を組み込むことによって、製袋機械で生産が可能である。
特に、上下に折り込み部を設けた自立性容器は、容量も大きく出来、かつ、収納前ではコンパクトに畳められることから、大きな包装体に積極的に利用されつつある。
例えば、特許文献１では、
表裏一対の外装シートと、両外装シートの下端部から内側に折り込まれてボトムガセット部を形成するボトムガセットシートと、両外装シートの上端部から内側に折り込まれてトップガセット部を形成するトップガセットシートとを備えたパウチ容器において、
前記トップガセットシートは、表裏一対の前記外装シートの上縁部及び側縁部にそれぞれヒートシールされており、
前記トップガセットシートには、両端部が一対の上縁シール部に繋がって持ち手を形成する指掛帯が、トップガセットシートのみに連設されていることを特徴とするパウチ容器を提案している。
しかしながら、このような容器の場合、充分に内容物が充填された状態では問題ないものの、内容物を注出して、内容物が少なくなって来た時には、容器全体が折れ曲がり、自立性が損なわれると共に、注ぎ性が悪化する問題があった。
例えば、縦断面が図４−１のように、満充填状態において、容器は表フィルムや裏フィルムに内圧が掛かり、充分に自立することができる。しかし、半分以上排出した場合には、図４−２のように、表フィルムや裏フィルムに対する内圧が低下し、容器の中央部分で折れてしまい、上部が垂れてくる。このように上部が垂れると、下端の底近傍の折込部近傍がピンと踏ん張る力が無く、重心が垂れた注出口の方に寄ってしまうので、バランスがとれず、容器が倒れてしまう問題があった。
さらに、自立性が無くなると、注出する為に容器を傾ける時にも、持ち手だけでは形状を保てず、持ち手部分と共に、底部側を持ち上げなければならず、両手を使用しないと注出しにくいなどの問題も発生していた。
A self-supporting container composed of a film that is self-supporting and uses a small amount of resin, such as a blow bottle, was developed by folding an intermediate film on the bottom side, and by incorporating a simple mechanism, a bag making machine Can be produced in
In particular, a self-supporting container provided with folding portions at the top and bottom can be increased in capacity and can be folded compactly before storage, and thus is actively used for large packaging.
For example, in Patent Document 1,
A pair of front and back exterior sheets, a bottom gusset sheet that is folded inward from the lower end portions of both exterior sheets to form a bottom gusset portion, and a top gusset that is folded inward from the upper end portions of both exterior sheets to form a top gusset portion In a pouch container with a sheet,
The top gusset sheet is heat-sealed on each of the upper edge portion and the side edge portion of the pair of front and back exterior sheets,
Proposing a pouch container, wherein the top gusset sheet is provided with a finger strap that has both ends connected to a pair of upper edge seals to form a handle, and is connected to only the top gusset sheet. Yes.
However, in the case of such a container, there is no problem when the contents are sufficiently filled, but when the contents are poured out and the contents are reduced, the entire container is bent and the self-supporting property is impaired. At the same time, there was a problem that the pouring property deteriorated.
For example, as shown in FIG. 4-1, the container can be sufficiently self-supported when the inner pressure is applied to the front film and the back film when the container is fully filled. However, when discharging more than half, as shown in FIG. 4-2, the internal pressure with respect to the front film and the back film is lowered, the container is broken at the center portion, and the upper part is drooped. When the upper part hangs down in this way, the vicinity of the folding part near the bottom of the lower end has no force to pinch, and the center of gravity approaches the spout where it hangs down, so there is a problem that the balance is not achieved and the container falls down. It was.
Furthermore, when the independence is lost, when the container is tilted to pour out, the shape cannot be maintained with the handle alone, the bottom side must be lifted together with the handle portion, and the pour must be taken without using both hands. There were also problems such as difficulties.
そこで、内容物の残量が少なくなっても、容器の自立性が損なわれず、片手でも注出可能な注ぎ易いフィルム製の収納容器を得ることが本発明の課題である。 Accordingly, it is an object of the present invention to obtain an easy-to-pour film storage container that can be poured out with one hand without impairing the independence of the container even when the remaining amount of the contents is reduced.
本発明は、上面と底面に折り込み部を有するフィルム製容器において、
上面折り込み部の容器幅方向の一方の端部に切れ目を入れてさらに折り込んだ口折込融着部が設けられており、
前記口折込融着部には注出口が融着されており、
前記注出口を設けた側と反対側の側面融着部に、気体を封じた中空部を設けられていることを特徴とする自立性容器
である。
The present invention, in a film container having a folded portion on the upper surface and the bottom surface,
One end of the container width direction of the upper surface folding portion mouth fold fusion part that further folded by nicked is provided on,
A spout is fused to the mouth fold fusion part ,
The self-supporting container is characterized in that a gas-sealed hollow portion is provided at a side surface fusion portion opposite to the side where the spout is provided .
本発明の自立性容器は、内容物が減少しても自立可能で、自立性容器が途中で折れてしまわないので、一度に使い切らない場合でも自立性が確保できるので、非常に使い易い容器である。 The self-supporting container of the present invention is self-supporting even if the contents are reduced, and since the self-supporting container does not break in the middle, it can secure self-supporting even if it is not used up at once, so it is a very easy-to-use container. is there.
以下、本発明の自立性容器の実施形態例について、図を用いて詳細に説明する。
図１は本発明の自立性容器の一例で、その外観を示す斜視図である。
表フィルム１と裏フィルム２との間には、底部側に底面折り込みフィルム３、上面側に上面折り込みフィルム４が挟み込まれるように融着している。
この為、底面折り込みフィルム３が広がることによって、底部が形成される。それと共に、底面折り込みフィルム３と表フィルム１とが重なった底表融着部３１と、底面折り込みフィルム３と裏フィルム２が重なって融着された底裏融着部３２が、底側に突き出して形成され、安定的な底部になっている。
Hereinafter, embodiments of the self-supporting container of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing an appearance of an example of a self-supporting container according to the present invention.
The front film 1 and the back film 2 are fused so that the bottom folded film 3 is sandwiched on the bottom side and the top folded film 4 is sandwiched on the top side.
For this reason, a bottom part is formed when the bottom fold film 3 spreads. At the same time, a bottom surface fusion part 31 in which the bottom folded film 3 and the front film 1 are overlapped and a bottom back fusion part 32 in which the bottom folded film 3 and the back film 2 are overlapped and fused are projected to the bottom side. Is formed and has a stable bottom.
同時に、上面折り込みフィルム４が広がることによって、上面部が形成されている。
さらに、上面折り込みフィルム４の左側が一部切断され、折り込まれ、折り込まれた部分には、注出部５が挟み込まれるように融着している。注出部５は、熱可塑性の融着可能な樹脂で成形されていて、かつ、融着部は断面が船形になっていて、融着時に隙間が発生しにくいように形成されている。
それと共に、上面折り込みフィルム４と表フィルム１とが重なった上表融着部４１と、上面折り込みフィルム４と裏フィルム２が重なって融着された上裏融着部４２が、上側に突き出して形成されている。
At the same time, an upper surface portion is formed by spreading the upper folded film 4.
Further, the left side of the top folded film 4 is partially cut and folded, and the poured portion 5 is fused so as to be sandwiched between the folded portions. The dispensing portion 5 is formed of a thermoplastic fusing resin, and the fusing portion has a ship-shaped cross section so that a gap is hardly generated during fusing.
At the same time, an upper surface fusion portion 41 where the upper surface folding film 4 and the front film 1 are overlapped, and an upper back fusion portion 42 where the upper surface folding film 4 and the back film 2 are overlapped and fused are projected upward. Is formed.
さらに、表フィルム１と裏フィルム２が側面の左右に側面融着部６を形成している。
この側面融着部６の下方は底面折り込みフィルム３に、上方は上面折り込みフィルム４に、左右とも融着して底面部、上面部を形成している。
さらに、注出部５が融着されていない側面融着部６において、上面側と底面側の間に、中空部６１を形成し、内部に空気などの気体を注入している。この中空部６１の大きさは、後述する理由により、直径１０ｍｍ〜５０ｍｍが適当である。
底面部の左右では、一部底面折り込みフィルム３に穴を開け、表フィルム１と裏フィルム２が直接融着して、底表融着部３１と底裏融着部３２が繋がるようにすると、より底面部近傍の強度が向上できる。
図２は、本発明の自立性容器で、図１のＡ面における縦断面図である。
表フィルム１と裏フィルム２が底部側は底面折り込みフィルム３を介在して融着され、上面側は上面折り込みフィルム４が介在し、かつ、上面折り込みフィルム４の一端中央に切れ目があって、切れ目の間に注出部５が入って融着されている。
Further, the front film 1 and the back film 2 form the side fusion parts 6 on the left and right sides.
The lower side of the side surface fused portion 6 is fused to the bottom folded film 3 and the upper side is fused to the top folded film 4 to form the bottom and top surfaces by fusing both the left and right sides.
Further, in the side surface fused portion 6 where the pouring portion 5 is not fused, a hollow portion 61 is formed between the upper surface side and the bottom surface side, and a gas such as air is injected therein. The size of the hollow portion 61 is suitably 10 mm to 50 mm for the reason described later.
On the left and right sides of the bottom portion, when a part of the bottom folded film 3 is pierced, the front film 1 and the back film 2 are directly fused, and the bottom front fused portion 31 and the bottom back fused portion 32 are connected. The strength near the bottom can be improved.
FIG. 2 is a self-supporting container according to the present invention, and is a vertical cross-sectional view of the A plane of FIG.
The front film 1 and the back film 2 are fused on the bottom side with the bottom folded film 3 interposed therebetween, the top surface is sandwiched with the top folded film 4, and there is a cut at one end center of the top folded film 4. In between, the pouring part 5 enters and is fused.
図３は、本発明の自立性容器で、それぞれ、図２のａ，ｂ，ｃ，ｄで切断した横断面図である。
図３−１は注出口を設けた上面部の上方におけるａの横断面図で、切れ目に注出口５を融
着した上面折り込みフィルム４と表フィルム１とが融着し、上表融着部４１を形成している。
また、上面折り込みフィルム４と裏フィルム２が融着して上裏融着部４２を形成している。
FIG. 3 is a cross-sectional view of the self-supporting container of the present invention, cut along a, b, c, and d in FIG.
FIG. 3A is a cross-sectional view of “a” above the upper surface portion where the spout is provided. The top folded film 4 and the front film 1 fused with the spout 5 are fused to each other, and the upper surface fusion portion 41 is formed.
Further, the upper folded film 4 and the back film 2 are fused to form an upper back fused part 42.
図３−２は、ｂで切断した容器の胴部断面図で、表フィルム１と裏フィルム２が左右に側面融着部６を形成して繋がり、内容物が入る胴部を形成していて、かつ、図の左側の側面融着部６の中央に中空部６１を設けている。
基本的には、中空部６１には空気を充填しているが、窒素ガスやヘリウムガスなど、他の気体であってもかまわない。もちろん、水のような液体でもかまわないが、重くなると、内容物が減少した時に、倒れ易い問題が発生し易いので、気体が好ましい。
FIG. 3-2 is a cross-sectional view of the body section of the container cut at b. The front film 1 and the back film 2 are connected to each other by forming a side fusion part 6 on the left and right, forming a body part into which the contents enter. And the hollow part 61 is provided in the center of the side surface fused | fusion part 6 of the left side of a figure.
Basically, the hollow portion 61 is filled with air, but other gases such as nitrogen gas and helium gas may be used. Of course, a liquid such as water may be used, but if it becomes heavier, a problem is likely to occur when the contents are reduced, so gas is preferred.
図３−３は、ｃで切断した容器の底部近傍の胴部断面図である。
折り込みフィルムは、折り込んで合わさる内層表面は２軸延伸されたポリエチレンテレフタレートフィルムや２軸延伸ポリプロピレンフィルムなどを用い、融着しにくいフィルムにしておく。
そして、表フィルム１や裏フィルム２に合う面には低密度ポリエチレンなどの融着性の高い材料を外層に使用している。
その為、折り込みフィルムを挟んで表フィルム１と裏フィルム２を融着すると、折り込まれた折り込みフィルムの内面同士は融着せず、折り込みフィルムの外側の融着性の高い外層と表フィルム１や裏フィルム２との間だけが融着する。
そして、折り込みフィルムがない左右端部では、直接、表フィルム１と裏フィルム２が融着している。
これらのフィルムは、通常のドライラミネーション機、エクストルーダーラミネート機などを使用して、貼り合わせることにより製造することができる。
また、折り込みフィルムにおいて、左右の一部に折り込みフィルム穴を開け、部分的に表フィルム１と裏フィルム２を融着して、底表融着部３１と底裏融着部３２が直接融着するようにしても良い。
FIG. 3-3 is a cross-sectional view of the trunk portion near the bottom of the container cut at c.
The folded film is made of a film that is difficult to fuse by using a biaxially stretched polyethylene terephthalate film, a biaxially stretched polypropylene film, or the like on the inner layer surface to be folded.
And the material which has high meltability, such as low density polyethylene, is used for the outer layer on the surface that matches the front film 1 and the back film 2.
Therefore, when the front film 1 and the back film 2 are fused with the folded film interposed therebetween, the inner surfaces of the folded folded film are not fused with each other, and the outer layer having high fusibility on the outer side of the folded film and the front film 1 and the back film Only the film 2 is fused.
And the front film 1 and the back film 2 are melt | fused directly in the right-and-left end part which does not have a folding film.
These films can be produced by pasting together using an ordinary dry lamination machine, an extruder laminating machine or the like.
Also, in the fold film, fold film holes are made in the left and right parts, the front film 1 and the back film 2 are partially fused, and the bottom surface fused part 31 and the bottom back fused part 32 are directly fused. You may make it do.
図３−４は、ｄで切断された容器の底融着部の断面図である。
底面折り込みフィルム３と表フィルム１との底表融着部３１や、底面折り込みフィルム３と裏フィルム２との底裏融着部３２と、底面折り込みフィルム３のない左右の側面融着部６で構成されて、それらが繋がっている。
繋がっていて、かつ、厚みもあるので、強度の高い底面を形成している。
FIG. 3-4 is a cross-sectional view of the bottom fusion part of the container cut at d.
At the bottom front fusion part 31 between the bottom folded film 3 and the front film 1, the bottom back fused part 32 between the bottom folded film 3 and the back film 2, and the left and right side fused parts 6 without the bottom folded film 3 Composed and connected.
Since it is connected and thick, it forms a strong bottom surface.
図５は、本自立性容器を製造する部品とその配置である。
上面折り込みフィルム４には、右側中央折り込み部分に切れ目を入れて、更に折り込み、その折り込んだ口折込融着部４３に注出口５が挿入される。
この注出口５と上面折り込みフィルム４との融着は、先に行われる。
又、表フィルム１と裏フィルム２の間に、下方から底面折り込みフィルム３、上方から上記注出口５が融着された上面折り込みフィルム４がそれぞれ、折り線側が容器の中央に向けて折り込まれた状態で挿入されている。
FIG. 5 shows the parts for manufacturing the self-supporting container and the arrangement thereof.
The upper surface folding film 4 is cut at the center folding portion on the right side and further folded, and the spout 5 is inserted into the folded mouth fold fusion portion 43.
The fusion between the spout 5 and the upper folding film 4 is performed first.
Also, the bottom folded film 3 from below and the top folded film 4 with the spout 5 fused from above were folded between the front film 1 and the back film 2 with the fold line side toward the center of the container. Inserted in a state.
図６は、本自立性容器を製造するシールの形状を示している。
表フィルム１と裏フィルム２の間に挟みこまれた底面折り込みフィルム３の底シール部３１やその裏フィルム側がシールされる。この時、底面折り込みフィルム３は、合わさった内側同士は融着性が無い素材を使用しているので、表フィルム１と底面折り込みフィルム３、裏フィルム２と底面折り込みフィルム３との間のみ融着する。その為、折り込まれた底面折り込みフィルム３を広げて、底面を設けることが出来る。
また、同じように、表フィルム１と裏フィルム２の間に挟みこまれた上面折り込みフィル
ム４の周囲がシールされる。この時、上面折り込みフィルム４も、合わさった内側同士は融着性が無い素材を使用しているので、表フィルム１と上面折り込みフィルム４、裏フィルム２と上面折り込みフィルム４との間のみ、融着する。その為、折り込まれた上面折り込みフィルム４を広げて、上面を設けることが出来る。
もちろん、この加工の前に、注出口５が上面折り込みフィルム４の折込線上に設けた切れ目を折り返して融着されるので、注出口５の融着部近傍は、船形の断面を有し、隙間無く融着しやすいようにしておくことが望ましい。
側面部分は、側面シール６が行われる。この時、注出口５を融着していない側面シールの中央に、縦に、空気又は、窒素などの気体を封印した中空部６１を設ける。
中空部６１の下端は底面折り込みフィルムの折り返し部近傍、中空部６１の上端は上面折り込みフィルムの折り返し部近傍とする。
FIG. 6 shows the shape of the seal for producing the self-supporting container.
The bottom sealing portion 31 of the bottom folded film 3 sandwiched between the front film 1 and the back film 2 and the back film side are sealed. At this time, since the bottom folded film 3 is made of a material having no fusion property between the combined inner sides, only the front film 1 and the bottom folded film 3 and the back film 2 and the bottom folded film 3 are fused. To do. Therefore, the bottom folded film 3 that has been folded can be widened to provide the bottom.
Similarly, the periphery of the top folded film 4 sandwiched between the front film 1 and the back film 2 is sealed. At this time, since the upper side folding film 4 is also made of a material having no fusibility between the combined inner sides, only the gap between the front film 1 and the upper side folding film 4 and between the back film 2 and the upper side folding film 4 is fused. To wear. Therefore, the folded upper surface folding film 4 can be spread to provide the upper surface.
Of course, before this processing, since the spout 5 is folded and fused on the cut line provided on the fold line of the top fold film 4, the vicinity of the fused portion of the spout 5 has a ship-shaped cross section, It is desirable to make it easy to be fused.
Side seals 6 are performed on the side portions. At this time, a hollow portion 61 in which air or a gas such as nitrogen is sealed is provided vertically in the center of the side seal to which the spout 5 is not fused.
The lower end of the hollow portion 61 is near the folded portion of the bottom folded film, and the upper end of the hollow portion 61 is near the folded portion of the top folded film.
側面の中空部６１の太さについて、表のように、直径２ｍｍから直径６０ｍｍの試作を行ってみた。 As for the thickness of the hollow portion 61 on the side surface, as shown in the table, trial manufacture was performed with a diameter of 2 mm to 60 mm.
自立性評価は、容量の半分になるように水を入れ、底面を下にして立ててみて、注出口から手を離した時に、容器が自立しているか、確認した。
また、易注ぎ性は、左の側面の中空部６１を片手で掴み、注出する場合の官能性評価を行った。
In the self-sustainability evaluation, water was added so as to be half of the capacity, and the bottom surface was turned down, and it was confirmed whether the container was self-supporting when the hand was released from the spout.
In addition, the ease of pouring was evaluated by sensory evaluation when the left side hollow portion 61 was grasped with one hand and poured out.
自立性の評価結果は、中空部が直径３ｍｍ（自立性容器胴部の太さの２パーセント）以下の場合、注出口５を離した時に支えきれず、倒れてしまった。直径５ｍｍ（自立性容器胴部の太さの３パーセント）以上であれば、注出口を支えて、直立を保つことが可能であった。 As a result of evaluating the self-supporting property, when the hollow portion had a diameter of 3 mm or less (2% of the thickness of the self-supporting container body portion), it could not be supported when the spout 5 was released and it fell down. If the diameter was 5 mm (3% of the thickness of the self-supporting container body) or more, it was possible to support the spout and keep it upright.
さらに、易注出性の評価では、中空部が直径５ｍｍ以下の場合、注ぐ為に容器を倒した時、全体が折れ曲がり、作業性が著しく低くなった。
しかし、直径１０ｍｍ以上であれば、注ぐ為に容器を傾けても、その姿勢を保持できるので、作業性は高かった。ただ、直径５０ｍｍを越えると、指が中空部６１外周に回しきれず、中空部６１をしっかり掴み難く、その点で、作業性が低下することが分かった。
以上の結果から、中空部６１の太さは、直径１０ｍｍ（自立性容器胴部の太さの５パーセント）以上５０ｍｍ以下が良好な太さであると判断した。
中空部の中に入れる気体は、空気であってもかまわない。ただ、自立性容器が置かれる環境が冷凍などのような苛酷な状態に置かれる場合もあるのであれば、より水蒸気の少ない窒素ガスなどで充填することが好ましい。
Further, in the evaluation of easy pouring property, when the hollow portion had a diameter of 5 mm or less, when the container was tilted for pouring, the whole was bent and workability was remarkably lowered.
However, if the diameter is 10 mm or more, even if the container is tilted for pouring, the posture can be maintained, and the workability is high. However, it has been found that when the diameter exceeds 50 mm, the fingers cannot be fully rotated around the outer periphery of the hollow portion 61, and it is difficult to grasp the hollow portion 61 firmly.
From the above results, it was judged that the thickness of the hollow portion 61 was a good thickness having a diameter of 10 mm (5% of the thickness of the self-supporting container body) and 50 mm or less.
The gas put into the hollow portion may be air. However, if the environment in which the self-supporting container is placed may be placed in a harsh state such as freezing, it is preferable to fill with nitrogen gas with less water vapor.
また、外層には、２軸延伸ポリエチレンテレフタレートや２軸延伸ポリアミドのような融着性の低い２軸延伸フィルムが好ましい。
例えば、外側から、
ポリエチレンテレフタレート／ポリエチレン、
ポリアミド／ポリエチレン／無機酸化物蒸着ポリエチレンテレフタレート／ポリエチレン、
ポリエチレンテレフタレート／ポリエチレン／エチレン酢酸ビニル共重合体鹸化物／ポリエチレン、
ポリエチレンテレフタレート／ポリエチレン／接着樹脂／ポリアミド／接着樹脂／ポリエチレン、
ポリエチレンテレフタレート／ポリアミド／接着樹脂／ポリエチレン／アルミ箔／ポリエチレン、
などの一般的な構成が考えられる。
これらのフィルムは、通常のドライラミネーション機、エクストルーダーラミネート機などを使用して貼り合わせたり、多層インフレーション機などで製造することができる。
The outer layer is preferably a biaxially stretched film with low fusibility, such as biaxially stretched polyethylene terephthalate or biaxially stretched polyamide.
For example, from the outside
Polyethylene terephthalate / polyethylene,
Polyamide / polyethylene / inorganic oxide vapor-deposited polyethylene terephthalate / polyethylene,
Polyethylene terephthalate / polyethylene / ethylene vinyl acetate copolymer saponified product / polyethylene,
Polyethylene terephthalate / polyethylene / adhesive resin / polyamide / adhesive resin / polyethylene,
Polyethylene terephthalate / polyamide / adhesive resin / polyethylene / aluminum foil / polyethylene,
A general configuration such as
These films can be bonded together using a normal dry lamination machine, an extruder laminating machine or the like, or can be produced by a multilayer inflation machine.
本発明の自立性容器は、以上のようなもので、上下に折り込みフィルムを挿入し、側面に中空部を設けることによって、フィルムの使用量に対して、非常に大きな容量を確保でき、かつ、自立性も高く、注出性も高いなど、メリットは大きい。 The self-supporting container of the present invention is as described above, and by inserting a folded film up and down and providing a hollow portion on the side surface, a very large capacity can be secured with respect to the amount of film used, and The benefits are high, such as high independence and high pourability.
１・・・・・・・・・表フィルム
２・・・・・・・・・裏フィルム
３・・・・・・・・・底面折り込みフィルム
３１・・・・・・・・底表融着部
３２・・・・・・・・底裏融着部
４・・・・・・・・・上面折り込みフィルム
４１・・・・・・・・上表融着部
４２・・・・・・・・上裏融着部
４３・・・・・・・・口折込融着部
５・・・・・・・・・注出口
６・・・・・・・・・側面融着部
６１・・・・・・・・中空部（側面）
７・・・・・・・・・内容物
1... Front film 2... Back film 3... Bottom fold film 31. Portion 32 ·······························································································・ Upper and lower fusion part 43 ......... Fold-in part fusion part 5 ..... Spout 6 ..... Side fusion part 61 ... ... Hollow part (side)
7 .... Contents
Claims (2)
上面折り込み部の容器幅方向の一方の端部に切れ目を入れてさらに折り込んだ口折込融着部が設けられており、
前記口折込融着部には注出口が融着されており、
前記注出口を設けた側と反対側の側面融着部に、気体を封じた中空部を設けられていることを特徴とする自立性容器。 In a film container having folds on the top and bottom surfaces,
One end of the container width direction of the upper surface folding portion mouth fold fusion part that further folded by nicked is provided on,
A spout is fused to the mouth fold fusion part ,
A self-supporting container, characterized in that a gas-sealed hollow portion is provided at a side surface fusion portion opposite to the side where the spout is provided .
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