JPH0825561B2 - Laminated lid for easy opening - Google Patents

Laminated lid for easy opening

Info

Publication number
JPH0825561B2
JPH0825561B2 JP62063175A JP6317587A JPH0825561B2 JP H0825561 B2 JPH0825561 B2 JP H0825561B2 JP 62063175 A JP62063175 A JP 62063175A JP 6317587 A JP6317587 A JP 6317587A JP H0825561 B2 JPH0825561 B2 JP H0825561B2
Authority
JP
Japan
Prior art keywords
layer
notch
lower layer
aluminum foil
lid
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 - Lifetime
Application number
JP62063175A
Other languages
Japanese (ja)
Other versions
JPS63232139A (en
Inventor
隆雄 小橋
雅幸 鍜治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Showa Aluminum Can Corp
Original Assignee
Showa Aluminum Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Showa Aluminum Corp filed Critical Showa Aluminum Corp
Priority to JP62063175A priority Critical patent/JPH0825561B2/en
Publication of JPS63232139A publication Critical patent/JPS63232139A/en
Publication of JPH0825561B2 publication Critical patent/JPH0825561B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Packages (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)

Description

【発明の詳細な説明】 産業上の利用分野 この発明は、食品などが収められる容易の蓋、とくに
ジュース、酒などの飲み物、ふりかけなどの容器に適す
る開封の容易な蓋に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an easy-to-open lid that can easily hold foods and the like, and particularly to an easily-open lid that is suitable for juices, drinks such as liquor, and containers such as sprinkles.

従来の技術 この種の蓋としては、例えば、実開昭53-121251号公
報に開示されているように、互いに引剥し可能な上層と
下層よりなり、下層に、その下面から上面に達する環状
の開口部形成用切込みが形成され、下層が切込みの外側
の部分において容器の口縁部に固着されているものが知
られている。
2. Description of the Related Art As a lid of this type, for example, as disclosed in Japanese Utility Model Application Laid-Open No. 53-121251, an upper layer and a lower layer that can be peeled from each other are formed. It is known that a notch for forming an opening is formed and the lower layer is fixed to the rim of the container at a portion outside the notch.

発明が解決しようとする課題 上記蓋では、刃物を切込みとなるべき部分に押圧切断
することによって切込みを形成しており、そのため、刃
物の切れ具合や押圧力にばらつきがあると、切込みの深
さを蓋毎に一定にすることが容易でなかった。切込みが
深すぎると、切込みが不用意に切断されるし、切込みが
浅すぎると、切込みの切断が困難で開口が容易でない。
DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the above lid, the notch is formed by pressing and cutting the blade into a portion to be the notch, and therefore, if there is variation in the cutting condition or pressing force of the blade, the depth of the notch It was not easy to keep the value constant for each lid. If the depth of cut is too deep, the depth of cut is cut carelessly. If the depth of cut is too shallow, it is difficult to cut the depth of cut and opening is not easy.

この発明の目的は、上記問題点を解決した開封の容易
な積層体製蓋を提供することにある。
An object of the present invention is to provide a lid made of a laminated body which solves the above problems and is easy to open.

問題点を解決するための手段 この発明による開封の容易な積層体製蓋は、互いに引
剥し可能な上層と下層よりなり、下層に、その下面から
上面に達する環状の開口部形成用切込みが形成され、下
層が切込みの外側の部分において容器の口縁部に固着さ
れている開封の容易な積層体製蓋において、上層が、ア
ルミニウム箔を下面に有しており、下層が、熱溶断可能
な材料で形成されており、切込みが、下層の切込みとな
るべき部分を熱溶断することによって形成されているこ
とを特徴とするものである。
Means for Solving the Problems A lid made of a laminated body according to the present invention, which is easy to open, comprises an upper layer and a lower layer which can be peeled from each other, and a lower layer is formed with an annular opening forming notch extending from the lower surface to the upper surface. In the lid made of a laminated body in which the lower layer is fixed to the rim of the container at the outside of the cut, the upper layer has an aluminum foil on the lower surface, and the lower layer is heat-meltable. It is formed of a material, and the notch is formed by thermally fusing a portion of the lower layer to be the notch.

作用 この発明による開封の容易な積層体製蓋では、上層
が、アルミニウム箔を下面に有しており、下層が、熱溶
断可能な材料で形成されており、切込みが、下層の切込
みとなるべき部分を熱溶断することによって形成されて
いるから、切込みの成形に際し、下層を熱溶断すると、
アルミニウム箔によって切込みが上層に及ぶことが阻止
され、下層のみが確実に溶断される。
Action In the lid made of a laminated body which is easy to open according to the present invention, the upper layer has the aluminum foil on the lower surface, the lower layer is formed of a heat-meltable material, and the notch should be the notch of the lower layer. Since it is formed by heat-fusing the part, when forming the cut, if the lower layer is heat-fused,
The aluminum foil prevents the cut from reaching the upper layer and ensures that only the lower layer is blown.

実施例 この発明の実施例を図面を参照してつぎに説明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.

蓋(11)は、第1図に示すように、上層(12)と下層
(13)とを備えている。上層(12)は、上から順次耐食
層(21)およびアルミニウム箔(22)で構成され、下層
(13)は、上から順次接着剤層(23)、合成樹脂フィル
ム(24)および熱封緘材層(25)で構成されている。そ
して、耐食層(21)およびアルミニウム箔層(22)を除
いて、接着剤層(23)、合成樹脂フィルム(24)および
熱封緘材層(25)に開口部形成用切込み(31)が形成さ
れている。
As shown in FIG. 1, the lid (11) includes an upper layer (12) and a lower layer (13). The upper layer (12) is composed of a corrosion resistant layer (21) and an aluminum foil (22) in order from the top, and the lower layer (13) is an adhesive layer (23), a synthetic resin film (24) and a heat sealing material in order from the top. It is composed of layers (25). And, except for the corrosion resistant layer (21) and the aluminum foil layer (22), the notch (31) for forming an opening is formed in the adhesive layer (23), the synthetic resin film (24) and the heat sealing material layer (25). Has been done.

耐食層(21)は耐食性を有する合成樹脂をアルミニウ
ム箔(22)の上面に1〜2μの厚さにコーティングする
ことによって形成されたものである。必要ならば、耐食
層(21)をアルミニウム箔(22)の下面にも形成するよ
うにしてもよい。アルミニウム箔(2)の厚さは10〜70
μであり、なかでも20〜40μが好ましい。接着剤層(2
3)は、例えばホツトメルト接着剤のワックス成分の比
較的多いようなものをアルミニウム箔(22)の下面にコ
ーティングすることによって形成されたものであり、そ
の接着強度は10〜250g/15mm巾であり、なかでも20〜100
g/15mm巾が好ましく、合成樹脂フィルム(24)からアル
ミニウム箔(22)を比較的容易に引き剥しうるようにな
っている。合成樹脂フィルム(24)の具体例としては、
ポリエステル、塩化ビニル、ナイロン、ポリカーボネー
ト、ポリプロピレンなどをあげることができ、その厚さ
は10〜80μであり、なかでも15〜30μが好ましい。な
お、合成樹脂フィルム(24)は熱封緘材層(25)の強度
が充分であれば必要としない。熱封緘材層(25)は、容
器の種類や殺菌処理の方法により適宜その材質が選択さ
れるが、その代表的なものはホツトメルト接着剤であ
る。
The corrosion resistant layer (21) is formed by coating a synthetic resin having corrosion resistance on the upper surface of the aluminum foil (22) to a thickness of 1 to 2 μ. If necessary, the corrosion resistant layer (21) may be formed on the lower surface of the aluminum foil (22). The thickness of aluminum foil (2) is 10 ~ 70
μ, and particularly preferably 20 to 40 μ. Adhesive layer (2
3) is formed, for example, by coating the lower surface of the aluminum foil (22) with a wax-melt adhesive having a relatively large amount of wax component, and the adhesive strength is 10 to 250 g / 15 mm width. , Especially 20-100
A width of g / 15 mm is preferable, and the aluminum foil (22) can be peeled off relatively easily from the synthetic resin film (24). Specific examples of the synthetic resin film (24) include:
Examples thereof include polyester, vinyl chloride, nylon, polycarbonate, polypropylene and the like, and the thickness thereof is 10 to 80 μ, and preferably 15 to 30 μ. The synthetic resin film (24) is not necessary if the heat sealing material layer (25) has sufficient strength. The material of the heat-sealing material layer (25) is appropriately selected depending on the type of container and the sterilization method, and a typical one is a hot melt adhesive.

切込み(31)は、熱封緘材層(35)の下面から下面に
達する深さを有しかつアルミニウム箔(22)の下面を底
としている。切込み(31)の加工は、第2図に示すよう
に、切込み(31)の形状に対応する環状の突起(4)を
有する加熱体(42)を蓋(11)の下面に押圧することに
より切込み(31)となる部分を熱溶断することによって
いる。
The cut (31) has a depth reaching from the lower surface of the heat-sealing material layer (35) to the lower surface of the aluminum foil (22). The cut (31) is processed by pressing a heating body (42) having an annular protrusion (4) corresponding to the shape of the cut (31) against the lower surface of the lid (11) as shown in FIG. This is done by heat cutting the part that will become the notch (31).

上記の蓋(11)は、第3図に示す容器(51)の口に施
される。その開封に際しては、つまみ(52)の引張りに
より合成樹脂フィルム(24)からアルミニウム箔(22)
を引き剥すと、合成樹脂フィルム(24)および熱封緘材
層(25)の切込み(31)より内側の部分がアルミニウム
箔(22)に付着したままの外側の部分より持ち去られ、
そこに開口(53)が形成される。
The lid (11) is applied to the mouth of the container (51) shown in FIG. When opening it, pull the knob (52) from the synthetic resin film (24) to the aluminum foil (22).
When peeled off, the portion of the synthetic resin film (24) and the heat sealing material layer (25) inside the notch (31) is taken away from the outside portion of the aluminum foil (22) that remains attached,
An opening (53) is formed there.

発明の効果 この発明によれば、切込みの成形に際し、下層を熱溶
断すると、アルミニウム箔によって切込みが上層に及ぶ
ことが阻止され、下層のみが確実に溶断されるから、一
定の深さの切込みをもつ蓋を容易かつ確実に成形するこ
とができる。
EFFECTS OF THE INVENTION According to the present invention, when the lower layer is heat-fused during molding of the notch, the aluminum foil prevents the notch from reaching the upper layer, and only the lower layer is reliably melted. It is possible to easily and surely form a lid having a cover.

【図面の簡単な説明】[Brief description of drawings]

図面はこの発明の実施例を示し、第1図は断面図、第2
図は切込みの成形方法を説明する断面図、第3図は使用
状態を説明する斜視図である。 (12)……上層、(13)……下層、(22)……アルミニ
ウム箔、(24)……合成樹脂フィルム、(25)……熱封
緘材層、(31)……切込み。
The drawings show an embodiment of the present invention, FIG. 1 is a sectional view, and FIG.
FIG. 3 is a cross-sectional view illustrating a method of forming a cut, and FIG. 3 is a perspective view illustrating a usage state. (12) …… Upper layer, (13) …… Lower layer, (22) …… Aluminum foil, (24) …… Synthetic resin film, (25) …… Heat sealing material layer, (31) …… Incision.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】互いに引剥し可能な上層(12)と下層(1
3)よりなり、下層(13)に、その下面から上面に達す
る環状の開口部形成用切込み(31)が形成され、下層
(13)が切込み(31)の外側の部分において容器の口縁
部に固着されている開封の容易な積層体製蓋において、 上層(12)が、アルミニウム箔(22)を下面に有してお
り、下層(13)が、熱溶断可能な材料で形成されてお
り、切込み(31)が、下層(13)の切込みとなるべき部
分を熱溶断することによって形成されていることを特徴
とする、開封の容易な積層体製蓋。
1. An upper layer (12) and a lower layer (1) which can be separated from each other.
3), the lower layer (13) is formed with a notch (31) for forming an annular opening that extends from the lower surface to the upper surface, and the lower layer (13) is at the outer edge of the notch (31) at the rim of the container. In the lid made of a laminated body which is fixed to and is easily opened, the upper layer (12) has an aluminum foil (22) on the lower surface, and the lower layer (13) is made of a heat-meltable material. A lid made of a laminated body which is easy to open, characterized in that the notch (31) is formed by thermally fusing a portion of the lower layer (13) to be the notch.
JP62063175A 1987-03-17 1987-03-17 Laminated lid for easy opening Expired - Lifetime JPH0825561B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62063175A JPH0825561B2 (en) 1987-03-17 1987-03-17 Laminated lid for easy opening

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62063175A JPH0825561B2 (en) 1987-03-17 1987-03-17 Laminated lid for easy opening

Publications (2)

Publication Number Publication Date
JPS63232139A JPS63232139A (en) 1988-09-28
JPH0825561B2 true JPH0825561B2 (en) 1996-03-13

Family

ID=13221655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62063175A Expired - Lifetime JPH0825561B2 (en) 1987-03-17 1987-03-17 Laminated lid for easy opening

Country Status (1)

Country Link
JP (1) JPH0825561B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5394022B2 (en) * 2008-08-08 2014-01-22 大和製罐株式会社 Method for manufacturing container cap
JP5280320B2 (en) * 2009-08-31 2013-09-04 株式会社吉野工業所 Beverage container
JP6342943B2 (en) * 2016-04-25 2018-06-13 芽依 金澤 Lid

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5834030Y2 (en) * 1977-03-04 1983-07-30 東洋アルミニウム株式会社 container lid

Also Published As

Publication number Publication date
JPS63232139A (en) 1988-09-28

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