JPS63298B2 - - Google Patents
Info
- Publication number
- JPS63298B2 JPS63298B2 JP54170239A JP17023979A JPS63298B2 JP S63298 B2 JPS63298 B2 JP S63298B2 JP 54170239 A JP54170239 A JP 54170239A JP 17023979 A JP17023979 A JP 17023979A JP S63298 B2 JPS63298 B2 JP S63298B2
- Authority
- JP
- Japan
- Prior art keywords
- pull tab
- container
- plastic film
- tab piece
- gap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002985 plastic film Substances 0.000 claims description 28
- 229920006255 plastic film Polymers 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000007666 vacuum forming Methods 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 description 12
- 229920000573 polyethylene Polymers 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- -1 polyethylene Polymers 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000009501 film coating Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 235000013334 alcoholic beverage Nutrition 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 235000014214 soft drink Nutrition 0.000 description 1
Landscapes
- Cartons (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はプルタブつき容器の製造方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a container with a pull tab.
たとえば紙カツプのような容器に耐水性を与え
るためにポリエチレンなどのプラスチツクフイル
ムを被覆する場合には、従来は、紙カツプを通気
性の材料つまり紙単独で形成するか、または底部
と側壁とのシールをあまくして空気が流通できる
空隙を残しておき、紙カツプを成形型とするプラ
スチツクフイルムの真空成形を行なう手法が一般
にとられていた。
For example, when a container such as a paper cup is coated with a plastic film such as polyethylene to provide water resistance, the paper cup is conventionally formed of a breathable material, i.e., paper alone, or of a bottom and side walls. Generally, the seal was made softer, leaving a gap for air to circulate, and the plastic film was vacuum-formed using a paper cup as a mold.
しかし、この容器に、清涼飲料、酒類あるいは
果汁などを充填し、密封して長時間保存しようと
するならば、紙カツプの材料としてそれに耐える
もの、たとえばポリエチレン／アルミニウム／ポ
リエチレン／紙／ポリエチレンといつた積層材を
使用すべきである。また、底部のシールは十分強
固に接着する必要がある。そしてこの場合にも、
内面にポリエチレンなどの一体の被覆を行なうこ
とが好ましいが、真空成形による貼り合わせは、
空気の流通路がないため困難である。
However, if you want to fill this container with soft drinks, alcoholic beverages, fruit juice, etc., seal it, and store it for a long period of time, the material for the paper cup must be made of polyethylene, aluminum, polyethylene, paper, polyethylene, etc. laminates should be used. Also, the bottom seal needs to be firmly adhered. And in this case too,
Although it is preferable to apply an integral coating such as polyethylene to the inner surface, bonding by vacuum forming
This is difficult because there is no air flow path.
そこで本発明が解決しようとする問題点はたと
えばポリエチレン／アルミニウム／ポリエチレ
ン／紙／ポリエチレンといつた積層材よりなり、
且つシール部が十分強固に接着された、材料層を
通しての脱気、或はあまいシール部を通しての脱
気を行なうことが不可能な容器ブランクの内面に
一体のプラスチツクフイルムの被覆を施す方法を
提供することにある。 Therefore, the problem to be solved by the present invention is that the material is made of a laminated material such as polyethylene/aluminum/polyethylene/paper/polyethylene.
Further, it provides a method for coating the inner surface of a container blank with an integral plastic film to which the sealing portion is sufficiently firmly bonded and in which degassing through the material layer or through the loose sealing portion is impossible. It's about doing.
本発明『胴部部材と液体注出口を有する底部部
材とが一体に成形され且つ底部外面に液体注出口
を被覆して液体注出口よりも大きいプルタブ片が
あてがわれ底部外面との間に空気の流通が可能な
間隙を残してプルタブ片が底部外面に部分的に接
着されているプルタブ片つき容器ブランクを成形
型として用い、且つ前記記間隙を吸引または排気
孔として利用してプラスチツクフイルムの真空成
形または圧空成形を行ない、容器ブランク内面に
一体なプラスチツクフイルムの被覆を施すと共に
底部とプルタブ片間の間隙に若干くい込むように
前記プラスチツクフイルムを成形することを特徴
とするプルタブつき容器の製造方法』を要旨とす
るもである。
In the present invention, a body member and a bottom member having a liquid spout are integrally molded, and a pull tab piece larger than the liquid spout is attached to the outer surface of the bottom to cover the liquid spout, so that air can be left between the outer surface of the bottom and the bottom member. A container blank with a pull tab piece is used as a mold, in which a pull tab piece is partially adhered to the outer surface of the bottom, leaving a gap that allows the flow of water, and the gap is used as a suction or exhaust hole to vacuum the plastic film. A method for manufacturing a container with a pull tab, which comprises performing molding or air pressure forming to integrally cover the inner surface of a container blank with a plastic film, and molding the plastic film so as to fit slightly into the gap between the bottom and the pull tab piece. ” is the gist of this paper.
プルタブ片と底部間の間隙は吸引または排気孔
としての機能を果し、該間隙を通して吸引または
排気されることによりプラスチツクフイルムは胴
部及び底部の内面に密着せしめられると共に底部
とプルタブ片間の間隙に若干くい込むように成形
され、それによつて該間隙部分が封じられ、バリ
アー性の高い容器が形成される。
The gap between the pull tab piece and the bottom functions as a suction or exhaust hole, and by suction or exhaust through the gap, the plastic film is brought into close contact with the inner surfaces of the body and the bottom, and the gap between the bottom and the pull tab piece is closed. The container is shaped so that it slightly bites into the container, thereby sealing the gap and forming a container with high barrier properties.
また底部とプルタブ片間の間隙にくい込んだプ
ラスチツクフイルム部分の破断強度が弱いこと
と、くい込んだプラスチツクフイルム部分がプル
タブ片に密着せしめていることにより、プルタブ
片をひきあげるとき、底部とプルタブ片間の間隙
にくい込んだプラスチツク部分を液体注出口口縁
部に沿つて破断して注出口を得ることができる。 In addition, the breaking strength of the plastic film part that is embedded in the gap between the bottom and the pull tab piece is weak, and the embedded plastic film part is in close contact with the pull tab piece. The spout can be obtained by tearing the plastic part inserted into the gap along the edge of the liquid spout.
第１図は本発明の製造方法より得られる製品を
示す。
FIG. 1 shows a product obtained by the manufacturing method of the present invention.
第１図示のように本発明の製造方法により得ら
れるプルタブつき容器１は、底部２に液体注出口
３を有し、その外側に注出口３より大きいプルタ
ブ片４を上記底部２へ部分的たとえばスポツト状
の接着５によりとりつけ、内面全体にプラスチツ
クフイルムの被覆６を施した構造を有する。ここ
で接着とは、接着剤による接着およびヒートシー
ル性表面の熱融着の両方を包含する意味である。
これに液体を充填し密封したのち内容物をとり出
すには、容器１の上下を転倒して底部２を上に向
け、プルタブ片４をつまんで上方に引きあげる。 As shown in the first figure, a container 1 with a pull tab obtained by the manufacturing method of the present invention has a liquid spout 3 at a bottom 2, and a pull tab piece 4 larger than the spout 3 is attached to the outside of the liquid spout 3 to partially connect to the bottom 2, for example. It has a structure in which it is attached by spot-shaped adhesive 5 and the entire inner surface is covered with plastic film 6. Here, adhesion includes both adhesion with an adhesive and thermal fusion of heat-sealable surfaces.
To take out the contents after filling the container with liquid and sealing it, the container 1 is turned upside down, the bottom 2 is facing up, and the pull tab piece 4 is pinched and pulled upward.
この様子は第２図および第３図に示すとおりで
ある。プルタブ片４は部分的に接着されており、
剥離しやすく、また、プラスチツクフイルムの被
覆６が胴部内面及び底部部内面に密着し、且つ底
部２とプルタブ片４間の間隙に若干くい込むよう
にプラスチツクフイルムが成形されている。 This situation is as shown in FIGS. 2 and 3. The pull tab piece 4 is partially glued,
The plastic film is easily peeled off, and the plastic film is molded so that the plastic film coating 6 is in close contact with the inner surface of the body and the bottom, and is slightly wedged into the gap between the bottom 2 and the pull tab piece 4.
底部とプルタブ片間の間隙にくい込んだプラス
チツクフイルム部分の破断強度が弱いことと、く
い込んだプラスチツクフイルム部分がプルタブ片
に密着せしめられていることにより、プラスチツ
クフイルム６のプルタブ片の内面を被覆している
部分６Ａをプルタブ片４の引きあげに伴つて注出
口の縁に沿つて切り難し注出口３を得ることがで
きる。 The breaking strength of the plastic film part embedded in the gap between the bottom and the pull tab piece is weak, and the embedded plastic film part is tightly attached to the pull tab piece, so that the inner surface of the pull tab piece of the plastic film 6 is covered. As the pull tab piece 4 is pulled up, the spout 3 can be obtained by cutting along the edge of the spout.
このような構造のプルタブつき紙カツプを製造
する好適な一つの方法は、まず第４図に示すよう
に、胴部部材と液体注出口を有する底部部材とを
一体に成形して底部２に液体注出口３を有する紙
カツプブランク１Ａを成形し、注出口３の外側
に、それよりも大きい寸法のプルタブ片４をあ
て、底部２との間に空気の流通が可能な空隙を残
して部分的な接着５を行なう。次に、この紙カツ
プブランク１Ａを成形型として、真空または圧空
成形を行なつてプラスチツクフイルムの被覆を施
す。 One preferred method for producing a paper cup with a pull tab having such a structure is to first integrally mold a body member and a bottom member having a liquid spout, as shown in FIG. A paper cup blank 1A having a spout 3 is formed, and a pull tab piece 4 with a larger size is placed on the outside of the spout 3, leaving a gap between it and the bottom 2 that allows air to circulate. Perform adhesive bonding 5. Next, using this paper cup blank 1A as a mold, vacuum or pressure forming is performed to cover it with a plastic film.
第５図は第４図の紙カツプブランク１Ａの内部
に真空成形によりプラスチツクフイルムを被覆し
ている状態を底面側からみた説明図である。上記
の底部２とプルタブ片４との非接着間隙が吸引孔
として利用され、空気は矢印のような経過で排出
されて、被覆が円滑に行なわれる。 FIG. 5 is an explanatory view of the inside of the paper cup blank 1A shown in FIG. 4, which is covered with a plastic film by vacuum forming, viewed from the bottom side. The non-adhesive gap between the bottom portion 2 and the pull tab piece 4 is used as a suction hole, and air is discharged in the direction of the arrow to ensure smooth coating.
本発明のプルタブつき紙カツプを製造するさら
に別の方法は、まず液体注出口を有する底部部材
を用意し、その容器外側となる面に、注出口より
大きいプルタブ片を空気の流通が可能な間隙を残
して部分的に接着したのち、胴部部材と一体に成
形して紙カツプブランクをつくり、ついでこの紙
カツプブランクを成形型とし上記間隙を吸引また
は排気孔として利用してプラスチツクフイルムの
真空成形または圧空成形を行ない、内面に一体の
プラスチツクフイルムの被覆を施すことからな
る。 Yet another method for manufacturing the paper cup with a pull tab of the present invention is to first prepare a bottom member having a liquid spout, and place a pull tab piece larger than the spout on the outside surface of the container with a gap that allows air to flow. After partially adhering the paper cup blank, it is molded integrally with the body member, and then the paper cup blank is used as a mold and the gap is used as a suction or exhaust hole to vacuum form the plastic film. Alternatively, it may be formed by air pressure forming, and the inner surface may be covered with an integral plastic film.
本発明の容器を構成する材料は任意にえらぶこ
とができるが、前記したような、ポリエチレン／
紙／ポリエチレン／アルミニウム／ポリエチレン
といつた積層物は代表的なものである。 The material constituting the container of the present invention can be selected arbitrarily, but polyethylene/
Laminates such as paper/polyethylene/aluminum/polyethylene are typical.
プルタブ片の材料も同様であつて、容器本体と
同じ材料でよいが、異種のものを用いてもよい。 The material of the pull tab piece is also the same, and may be the same material as the container body, but a different material may also be used.
プラスチツクフイルムは、内容物が食品である
場合は、許容されるポリエチレンまたはポリエス
テル、あるいはこれらの積層物に限られる場合が
あるが、内容物次第では他の材料たとえば塩化ビ
ニリデンやエチレン一酢酸ビニル共重合体のフイ
ルム、さらにはそれらをラミネートした積層フイ
ルムなどを選択使用すべきである。 If the content is food, the plastic film may be limited to acceptable polyethylene or polyester, or a laminate thereof; however, depending on the content, it may be made of other materials such as vinylidene chloride or ethylene monovinyl acetate copolymer. Combined films or laminated films made by laminating these films should be selected.
プラスチツクフイルムによる被覆を行なう技術
として、真空成形または圧空成形と述べたが、も
ちろん両者を併用してもよいし、また補助プラグ
を使用することも好ましい。 Although vacuum forming or pressure forming has been described as a technique for coating with a plastic film, it is of course possible to use both in combination, and it is also preferable to use an auxiliary plug.
以上詳記した通り、本発明の方法によれば内面
がプラスチツクフイルムの被覆により被覆された
液体バリア性にすぐれたプルタブつき容器を容易
に得ることができる。
As detailed above, according to the method of the present invention, it is possible to easily obtain a container with a pull tab whose inner surface is coated with a plastic film and has excellent liquid barrier properties.
第１図は、紙カツプである本発明のプルタブつ
き容器の一例の縦断面図である。第２図および第
３図は、第１図のプルタブ部分の詳細を示すため
の部分拡大図であつて、第２図は紙カツプを上下
転倒したところを、第３図はプルタブをひきあげ
て注出口を開いたところをそれぞれ示す。第４図
および第５図は、紙カツプである本発明のプルタ
ブつき容器の製造方法の一つを説明するための図
であつて、第４図は紙カツプブランクの第１図と
同様な断面図、第５図はそれにプラスチツクフイ
ルムの被覆を施す際に底面方向からみた図（半分
示してある）である。
１……紙カツプ、２……底部、３……液体注出
口、４……プルタブ片、５……部分的接着、６，
６Ａ……プラスチツクフイルムの被覆。
FIG. 1 is a longitudinal sectional view of an example of a container with a pull tab of the present invention, which is a paper cup. Figures 2 and 3 are partially enlarged views showing the details of the pull tab in Figure 1. Figure 2 shows the paper cup being turned upside down, and Figure 3 shows the paper cup being turned upside down, and Figure 3 shows the pull tab being pulled up. Each figure shows the opening of the exit. 4 and 5 are diagrams for explaining one method of manufacturing a container with a pull tab of the present invention, which is a paper cup, and FIG. 4 is a cross-sectional view of a paper cup blank similar to that shown in FIG. 1. FIG. 5 is a view (half shown) viewed from the bottom side when the plastic film coating is applied thereto. 1... paper cup, 2... bottom, 3... liquid spout, 4... pull tab piece, 5... partial adhesion, 6,
6A... Plastic film coating.
Claims (1)
一体に成形され、且つ底部外面に液体注出口を被
覆して液体注出口よりも大きいプルタブ片があて
がわれ、底部外面との間に空気の流通が可能な間
隙を残してプルタブ片が底部外面に部分的に接着
されているプルタブ片つき容器プランクを成形型
として用い、且つ前記間隙を吸引、または排気孔
として利用して、プラスチツクフイルムの真空成
形、または圧空成形を行い、容器ブランク内面、
及び容器内方へ露出するプルタブ片の面領域に接
着する、一体なプラスチツクフイルムの被覆を施
すと共に、容器とプルタブ片間の間隙に若干くい
込むように、前記プラスチツクフイルムを成形す
ることを特徴とするプルタブ片つき容器の製造方
法。1. A body member and a bottom member having a liquid spout are integrally molded, and a pull tab piece larger than the liquid spout is attached to the outer surface of the bottom to cover the liquid spout, and air is prevented from forming between the body member and the bottom member having a liquid spout. A container plank with a pull tab piece is used as a mold, in which the pull tab piece is partially adhered to the outer surface of the bottom, leaving a gap that allows for the flow of plastic film, and the gap is used as a suction or exhaust hole. Vacuum forming or pressure forming is performed to form the inner surface of the container blank.
and an integral plastic film covering is applied to adhere to the surface area of the pull tab piece exposed inward of the container, and the plastic film is formed so as to slightly bite into the gap between the container and the pull tab piece. A method for manufacturing a container with a pull tab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17023979A JPS5695835A (en) | 1979-12-28 | 1979-12-28 | Vessel with pullltub and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17023979A JPS5695835A (en) | 1979-12-28 | 1979-12-28 | Vessel with pullltub and its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5695835A JPS5695835A (en) | 1981-08-03 |
| JPS63298B2 true JPS63298B2 (en) | 1988-01-06 |
Family
ID=15901240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17023979A Granted JPS5695835A (en) | 1979-12-28 | 1979-12-28 | Vessel with pullltub and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5695835A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3339788A (en) * | 1965-10-22 | 1967-09-05 | Nat Can Corp | Container |
| JPS545543B2 (en) * | 1972-10-25 | 1979-03-17 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5811738Y2 (en) * | 1974-12-19 | 1983-03-05 | カブシキガイシヤ シヨウサンドウ | Youki |
| JPS545543U (en) * | 1977-06-13 | 1979-01-13 |
-
1979
- 1979-12-28 JP JP17023979A patent/JPS5695835A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3339788A (en) * | 1965-10-22 | 1967-09-05 | Nat Can Corp | Container |
| JPS545543B2 (en) * | 1972-10-25 | 1979-03-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5695835A (en) | 1981-08-03 |
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