JP4549482B2 - Packaging container - Google Patents

Packaging container Download PDF

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Publication number
JP4549482B2
JP4549482B2 JP2000081411A JP2000081411A JP4549482B2 JP 4549482 B2 JP4549482 B2 JP 4549482B2 JP 2000081411 A JP2000081411 A JP 2000081411A JP 2000081411 A JP2000081411 A JP 2000081411A JP 4549482 B2 JP4549482 B2 JP 4549482B2
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Japan
Prior art keywords
opening
pressure
sensitive adhesive
closing lid
adhesive layer
Prior art date
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Expired - Fee Related
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JP2000081411A
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Japanese (ja)
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JP2001270547A (en
Inventor
広史 岸田
政明 黒瀬
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Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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Priority to JP2000081411A priority Critical patent/JP4549482B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、容器本体の取り出し口に剥離自在に貼設した感圧接着剤層を有する開閉蓋用ラベルにより容器本体の取り出し口を自在に開閉して内容物を取り出すことができる包装容器に関するものである。
【0002】
【従来の技術】
従来より、容器本体の取り出し口に感圧接着剤層を有する開閉蓋用ラベルを貼設し、取り出し口を自在に開閉して内容物を取り出すようにした包装容器が市場に出回っている。具体的に例示するならば、ウェットティッシュのような女性用のメーク落としなどを挙げることができる。
【0003】
ところで従来、この種の包装容器は、開閉蓋用ラベルに設けた感圧接着剤が内容物、たとえば、ウェットティッシュなどに接触して接着しないように開閉蓋用ラベルには、▲1▼容器本体の取り出し口に対応する開閉蓋用ラベルに感圧接着剤の未塗工領域を設けるなり、あるいは、▲2▼容器本体の取り出し口に対応する開閉蓋用ラベルの感圧接着剤面に合成樹脂製シートを貼合する、ないしは、▲3▼印刷等の手段により感圧接着剤の粘着力をなくすための非粘着性の被覆層を設けるなりの非粘着手段が施されている。
【0004】
しかし、▲1▼の開閉蓋用ラベルは、パートコートで感圧接着剤を設ける必要があり、そのための版が必要になり、その分コストアップになるといった問題があり、また、▲2▼の開閉蓋用ラベルは、該ラベルを製造する際の加工が煩雑であり、コストアップになるといった問題があり、また、▲3▼の開閉蓋用ラベルは、パートコートで非粘着性の被覆層を設ける必要があり、そのための版が必要になると共に、前記被覆層が内容物の薬剤により溶解して内容物の薬剤に溶出するといった問題や被覆層の役目を果たさなくなるといった問題があった。さらに、開閉蓋用ラベルは、通常、型抜きされて、容器本体の取り出し口に貼着されるが、▲1▼、▲2▼、▲3▼の開閉蓋用ラベルはいずれも、型抜き時の抜型と非粘着手段を施した箇所の見当精度や容器本体に貼着する時の非粘着手段を施した箇所と容器本体の取り出し口の見当精度に問題があった。
【0005】
【発明が解決しようとする課題】
そこで本発明は、上記問題に鑑みてなされたものであり、その目的とするところは、容器本体の取り出し口に感圧接着剤層を有する開閉蓋用ラベルを貼設し、取り出し口を自在に開閉して内容物を取り出すようにした包装容器であって、内容物と開閉蓋用ラベルに設けた感圧接着剤層とが接触して接着することのない包装容器を安価に提供することにある。
【0006】
【課題を解決するための手段】
本発明者等は、上記のような課題を達成するために、請求項1記載の発明は、取り出し口となる窓部を備えた上壁と、該上壁の周縁に連接して設けた周壁と、該周壁の自由な周縁に設けたフランジ部とからなる射出成形品である容器本体と、前記取り出し口となる窓部を被覆するように貼設された開閉蓋用ラベルと、前記周壁の自由な周端により囲われた開口を密封するように前記フランジ部に熱接着された密封材とからなる包装容器において、前記開閉蓋用ラベルは一方の面全面に設けられた感圧接着剤層により前記容器本体に対して剥離自在に構成されると共に、前記容器本体の取り出し口となる窓部内の前記感圧接着剤層に接する側に、前記取り出し口となる窓部より大きく、かつ、前記開閉蓋用ラベルの開封時に前記容器本体内に残存するように構成された表出面を少なくとも片方の面に有するシートが前記表出面を前記感圧接着剤層側に位置するように設けられており、前記シートは前記取り出し口となる窓部と相対する位置に穴を備えない1枚の合成樹脂製シートであることを特徴とするものである。
【0007】
また、請求項2記載の発明は、請求項1記載の包装容器において、前記表出面が合成樹脂製シートの少なくとも片方の面に設けた凹凸模様であることを特徴とするものである。
【0008】
また、請求項3記載の発明は、請求項1記載の包装容器において、前記表出面が合成樹脂製シートの少なくとも片方の面に設けた離型層であることを特徴とするものである。
【0009】
また、請求項4記載の発明は、請求項1〜3のいずれかに記載の包装容器において、前記感圧接着剤層と前記表出面との接着強度が50g/25mm巾以下であることを特徴とするものである。
【0010】
上記のように構成することにより、開閉蓋用ラベルに設けた感圧接着剤と内容物とが接触して接着することを防止することができると共に、前記シートが前記感圧接着剤層と接触して接着したとしても容易に前記シートを剥がすことができる。
【0011】
【発明の実施の形態】
上記の本発明について、図面に示す実施例に基づき、以下に詳述する。
図1は本発明にかかる包装容器の一実施例を示す斜視図、図2は図1のX−X線の断面図であり、図中の1は包装容器、2は容器本体、3は開閉蓋用ラベル、4は合成樹脂製シート、5は内容物、6は密封材、21は取り出し口、22は上壁、23は周壁、24はフランジ部、31は切刃、32は感圧接着剤層、33はラベル基材をそれぞれ示す。
【0012】
図1は本発明にかかる包装容器の一実施例を示す斜視図であって、包装容器1は射出成形された合成樹脂製の容器本体2の取り出し口21に、該取り出し口21を被覆するように開閉蓋用ラベル3が剥離自在に貼設されている。また、前記開閉蓋用ラベル3には開封開始端Aから前記開閉蓋用ラベル3を剥離した際に、前記開閉蓋用ラベル3を前記容器本体2から完全に剥離して取り去ることを防止するための切刃31、31が前記開閉蓋用ラベル3の剥離方向の前記開閉蓋用ラベル3の両端辺から設けられている。
【0013】
図2は図1のX−X線の断面図であって、包装容器1は、取り出し口21となる窓部を備えた平板状の突出部を有する上壁22と、該上壁22の周縁に連接して設けた周壁23と、該周壁23の自由な周縁に設けたフランジ部24とからなる容器本体2の前記取り出し口21を感圧接着剤層32を一方の面全面に有する開閉蓋用ラベル3で被覆すると共に、前記感圧接着剤層32で前記容器本体2に前記開閉蓋用ラベル3を貼着し、その後、少なくとも片方の面に前記開閉蓋用ラベルの開封時に前記容器本体内に残存するように構成された表出面を有する前記取り出し口21より大きい合成樹脂製シート4を前記表出面が前記開閉蓋用ラベル3の前記感圧接着剤層32側に位置するように載置すると共に、前記合成樹脂製シート4上に内容物5、たとえば、ウェットティッシュを所定枚数載置し、しこうして後に、前記容器本体2の前記フランジ部24で密封材6を熱接着して密封したものであって、図1、2はこのようにして製造された包装容器1を使用時の状態、すなわち、開閉蓋用ラベル3が上側に位置するように置いた状態を示す。
【0014】
次に、本発明の包装容器1を構成する各材料について説明する。
まず、前記開閉蓋用ラベル3としては、ラベル基材33の一方に面に感圧接着剤層32を形成したものであって、ラベル基材33としては、印刷適性があって機械的強度を有する合成樹脂製フィルム単体(合成紙を含む)、あるいは、これらの積層体ないしこれらとアルミニウム箔、あるいは、蒸着を施した合成樹脂製フィルム、あるいは、紙等を適宜に組み合わせた積層体等を挙げることができ、前記開閉蓋用ラベル3の構成を例示するとするならば、たとえば、2軸延伸ポリプロピレンフィルム/粘着剤層/印刷層/ユポ(王子油化)/粘着剤層、あるいは、印刷層/ユポ(王子油化)/粘着剤層などである。
【0015】
また、前記感圧接着剤層32としては、天然ゴムラテックス、あるいは、合成ゴムラテックス等の従来から普通に使用されている粘着剤の中から任意に選んで、グラビアコート法、ロールコート法、あるいは、加熱溶融押し出し法等の周知の塗工法で塗工することにより形成することができ、必要に応じて増粘剤、分散剤、消泡剤、帯電防止剤、防腐剤等の添加剤を加えてもよく、塗工量は固形分として10〜30g/m2 が適当である。
【0016】
合成樹脂製シート4としては、前記開閉蓋用ラベル3の一方の面全面に設けた前記感圧接着剤層32との接着強度が50g/25mm巾以下である表出面を少なくとも片方の面に有する合成樹脂製シート4が好ましく、その一つの態様としては少なくとも片方の面に格子状や碁盤目状、あるいは、砂目状の凹凸模様を形成したポリエチレン製シートやポリプロピレン製シートを挙げることができ、その厚さとしては概ね25〜100 μmであるし、また、別の態様としては少なくとも片方の面にシリコーンをグラビアコート法やロールコート法等の周知の塗工法で塗工して離型層を形成した各種の合成樹脂製シートを挙げることができ、シリコーンの塗工量は固形分として概ね0.5 〜1.5 g/m2 が適当であり、また、シリコーンを塗工する合成樹脂製シートの厚さとしては概ね25〜100 μmである。
【0017】
ところで、前記感圧接着剤層32と前記合成樹脂製シート4との接着強度を、50g/25mm巾以下である表出面を少なくとも片方の面に有する合成樹脂製シート4が好ましいとしたが、この理由としては、たとえば、内容物がアルコール成分を含浸したウェットティッシュを折り畳んで包装容器1に収納した場合、流通過程においてアルコール成分の蒸発やウェットティッシュの反発力等により前記合成樹脂製シート4が押圧されて前記開閉蓋用ラベル3に接触して接着する場合がある。このような場合においても、前記取り出し口21より大きく、かつ、前記開閉蓋用ラベル3の開封時に前記容器本体2内に残存するように構成された、たとえば、前記感圧接着剤層32と前記合成樹脂製シート4との接着強度が50g/25mm巾以下の表出面を少なくとも片方の面に有する前記合成樹脂製シート4によって、接着力を弱く、かつ、前記容器本体2の前記上壁22に接触することにより、前記合成樹脂製シート4が前記開閉蓋用ラベル3と一緒に持ち上がることが防止され、前記容器本体2内に残存するようにすることができるからである。
【0018】
このような接着強度を有する表出面の測定方法はJISZ0237に準拠したものであって、試験板(SUS-304 )に圧着ロール(質量:2000±50g、ゴム硬度:80±5Hs)で1往復して圧着し、30分経過後に、試験板から剥離速度300mm/min で90度剥離した時の剥離強度(接着強度)が200g/25mm巾以上の感圧接着剤層32を80g/m2 のユポ(王子油化)の一方の面に設けた開閉蓋用ラベル3を用意し、前記試験板(SUS-304 )上に、たとえば、片方の面に格子状の凹凸模様を形成した30μmのポリエチレン製シートを凹凸模様が表出するように両面テープで固着すると共に、用意した剥離強度(接着強度)が200g/25mm巾以上の感圧接着剤層32を有する前記開閉蓋用ラベル3を30μmの前記ポリエチレン製シートの凹凸模様面に圧着ロール(質量:2000±50g、ゴム硬度:80±5Hs)で1往復して圧着し、30分経過後に、30μmの前記ポリエチレン製シートから剥離速度300mm/min で90度剥離した時の剥離強度(接着強度)を測定し、その剥離強度(接着強度)が50g/25mm巾以下である表出面をいう。
【0019】
容器本体2としては、射出形成可能な合成樹脂であれば、特に限定するものではないが、例示するならばコストや成形の容易さ等からポリプロピレンが適当である。
【0020】
密封材6としては、少なくとも一方の表出面に前記容器本体2と熱接着可能な熱接着樹脂層を有すると共に、印刷適性があって機械的強度を有する構成であれば、特に限定するものではなく、たとえば、容器本体2がポリプロピレンからなるものであれば、2軸延伸ポリエステルフィルム/印刷層/接着剤層/アルミニウム箔/接着剤層/無延伸ポリプロピレンフィルムのような構成のものを例示することができる。
【0021】
【発明の効果】
本発明は、今まで縷々説明してきたように、容器本体の取り出し口に感圧接着剤層を有する開閉蓋用ラベルを貼設し、取り出し口を自在に開閉して内容物を取り出すようにした包装容器において、開閉蓋用ラベルに設けた感圧接着剤と内容物とが接触して接着することを防止することができると共に、前記シートが前記感圧接着剤層と接触して接着したとしても容易に前記シートを剥がすことができるという効果を奏するものである。また、開閉蓋用ラベルも従来のようなコストの高いラベルを用いなくても安価なラベルでよい上に、パートコートで設けた非粘着性の被覆層が内容物の薬剤により溶解して内容物の薬剤に溶出するといった問題や被覆層の役目を果たさなくなるといった問題も解消することができるという優れた効果を奏するものである。
【図面の簡単な説明】
【図1】 本発明にかかる包装容器の一実施例を示す斜視図である。
【図2】 図1のX−X線の断面図である。
【符号の説明】
1 包装容器
2 容器本体
3 開閉蓋用ラベル
4 合成樹脂製シート
5 内容物
6 密封材
21 取り出し口
22 上壁
23 周壁
24 フランジ部
31 切刃
32 感圧接着剤層
33 ラベル基材
[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a packaging container that can freely open and close a take-out port of a container body by a label for an open / close lid having a pressure-sensitive adhesive layer that is detachably attached to the take-out port of the container body, and can take out contents. It is.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, packaging containers have been put on the market in which a label for an opening / closing lid having a pressure-sensitive adhesive layer is attached to the outlet of a container body, and the contents are taken out by freely opening and closing the outlet. If it illustrates concretely, the make-up removal for women like a wet tissue etc. can be mentioned.
[0003]
By the way, conventionally, this type of packaging container has a (1) container body so that the pressure-sensitive adhesive provided on the label for the opening / closing lid does not contact and adhere to the contents, for example, wet tissue. The opening / closing lid label corresponding to the take-out port is provided with an uncoated area of pressure-sensitive adhesive, or (2) a synthetic resin on the pressure-sensitive adhesive surface of the open / close lid label corresponding to the take-out port of the container body A non-adhesive means is provided which provides a non-adhesive coating layer for eliminating the adhesive strength of the pressure sensitive adhesive by means such as (3) printing or the like for pasting sheets.
[0004]
However, the label for the opening / closing lid of (1) has a problem that it is necessary to provide a pressure-sensitive adhesive with a part coat, and a plate for that is required, which increases the cost, and (2) The label for the opening / closing lid has a problem that the processing for producing the label is complicated and the cost is increased, and the label for the opening / closing lid of (3) has a non-adhesive coating layer with a part coat. It is necessary to provide a plate for that purpose, and there are problems that the coating layer is dissolved by the drug of the contents and is dissolved into the drug of the contents, and that the role of the coating layer is not fulfilled. Furthermore, the opening / closing lid label is usually die-cut and attached to the outlet of the container body. However, all of the opening / closing lid labels (1), (2), and (3) are removed when the die is cut. There was a problem in the registration accuracy of the location where the die-cutting and non-adhesive means were applied, and the registration accuracy of the location where the non-adhesive means were applied when sticking to the container body and the outlet of the container body.
[0005]
[Problems to be solved by the invention]
Therefore, the present invention has been made in view of the above problems, and the object of the present invention is to attach a label for an opening / closing lid having a pressure-sensitive adhesive layer to the outlet of the container main body so that the outlet can be freely set. To provide a packaging container that can be opened and closed to take out the contents, and in which the contents and the pressure-sensitive adhesive layer provided on the label for the opening and closing lid do not contact and adhere to each other at low cost. is there.
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned problems, the inventors of the present invention are characterized in that the invention described in claim 1 includes an upper wall provided with a window portion serving as a take-out port, and a peripheral wall provided in connection with a peripheral edge of the upper wall. A container body that is an injection-molded product including a flange portion provided at a free peripheral edge of the peripheral wall, an opening / closing lid label that is pasted so as to cover the window portion serving as the extraction port, and the peripheral wall In a packaging container comprising a sealing material thermally bonded to the flange portion so as to seal an opening surrounded by a free peripheral end , the pressure-sensitive adhesive layer is provided on the entire surface of the opening / closing lid. Is configured to be peelable from the container main body, on the side in contact with the pressure-sensitive adhesive layer in the window serving as the outlet of the container main body, larger than the window serving as the outlet, and When the opening / closing lid label is opened, it remains in the container body. A sheet having a configured exposed surface to at least one surface is the exposed surface is provided so as to be positioned in the pressure-sensitive adhesive layer side, the window portion and the relative said sheet serving as the outlet It is a synthetic resin sheet that is not provided with a hole at a position to be formed.
[0007]
According to a second aspect of the present invention, in the packaging container according to the first aspect, the exposed surface is an uneven pattern provided on at least one surface of the synthetic resin sheet.
[0008]
According to a third aspect of the present invention, in the packaging container according to the first aspect, the exposed surface is a release layer provided on at least one surface of the synthetic resin sheet.
[0009]
The invention according to claim 4 is the packaging container according to any one of claims 1 to 3, wherein the adhesive strength between the pressure-sensitive adhesive layer and the exposed surface is 50 g / 25 mm or less. It is what.
[0010]
By configuring as described above, it is possible to prevent the pressure-sensitive adhesive provided on the opening / closing lid label and the contents from coming into contact with each other, and the sheet is in contact with the pressure-sensitive adhesive layer. Even if they are bonded, the sheet can be easily peeled off.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
The above-mentioned present invention will be described in detail below based on the embodiments shown in the drawings.
1 is a perspective view showing an embodiment of a packaging container according to the present invention, FIG. 2 is a cross-sectional view taken along line XX of FIG. 1, wherein 1 is a packaging container, 2 is a container body, and 3 is an open / close Cover label, 4 is a synthetic resin sheet, 5 is contents, 6 is a sealing material, 21 is an outlet, 22 is an upper wall, 23 is a peripheral wall, 24 is a flange, 31 is a cutting blade, 32 is pressure sensitive adhesive The agent layer 33 is a label substrate.
[0012]
FIG. 1 is a perspective view showing an embodiment of a packaging container according to the present invention. The packaging container 1 covers the take-out port 21 on the take-out port 21 of the injection-molded synthetic resin container body 2. An opening / closing lid label 3 is detachably attached. Further, when the opening / closing lid label 3 is peeled off from the opening start end A, the opening / closing lid label 3 is prevented from being completely peeled off from the container body 2 when the opening / closing lid label 3 is peeled off. Are provided from both ends of the opening / closing lid label 3 in the peeling direction of the opening / closing lid label 3.
[0013]
2 is a cross-sectional view taken along the line XX of FIG. 1, and the packaging container 1 includes an upper wall 22 having a flat plate-like projecting portion having a window portion serving as a take-out port 21, and a peripheral edge of the upper wall 22. An opening / closing lid having a pressure-sensitive adhesive layer 32 on the entire surface of the outlet 21 of the container body 2 comprising a peripheral wall 23 connected to the peripheral wall 23 and a flange portion 24 provided at a free peripheral edge of the peripheral wall 23 The cover body 3 is covered with the pressure sensitive adhesive layer 32, and the opening / closing lid label 3 is adhered to the container body 2 and then the opening / closing lid label is opened on at least one surface. A synthetic resin sheet 4 larger than the take-out port 21 having an exposed surface configured to remain inside is placed so that the exposed surface is positioned on the pressure-sensitive adhesive layer 32 side of the opening / closing lid label 3. And the contents 5, for example, wet tissue, on the synthetic resin sheet 4. A predetermined number of sheets are placed and then sealed by thermally sealing the sealing material 6 at the flange portion 24 of the container body 2, and FIGS. A state in which the container 1 is in use, that is, a state where the opening / closing lid label 3 is placed on the upper side is shown.
[0014]
Next, each material which comprises the packaging container 1 of this invention is demonstrated.
First, the opening / closing lid label 3 has a pressure-sensitive adhesive layer 32 formed on one side of a label base material 33. The label base material 33 has printability and mechanical strength. A synthetic resin film itself (including synthetic paper), or a laminate thereof, or an aluminum foil, a synthetic resin film that has been vapor-deposited, or a laminate in which paper or the like is appropriately combined. If the structure of the open / close lid label 3 is exemplified, for example, a biaxially stretched polypropylene film / adhesive layer / printing layer / YUPO (prince oil) / adhesive layer, or printing layer / YUPO (prince oil) / adhesive layer.
[0015]
Further, as the pressure-sensitive adhesive layer 32, natural rubber latex, or an adhesive agent that has been conventionally used, such as synthetic rubber latex, is arbitrarily selected, gravure coating method, roll coating method, or It can be formed by coating by a known coating method such as a heat-melt extrusion method, and additives such as thickeners, dispersants, antifoaming agents, antistatic agents, and preservatives are added as necessary. The coating amount is suitably 10 to 30 g / m 2 as a solid content.
[0016]
The synthetic resin sheet 4 has at least one exposed surface having an adhesive strength of 50 g / 25 mm width or less with the pressure-sensitive adhesive layer 32 provided on the entire surface of one side of the opening / closing lid label 3. Synthetic resin sheet 4 is preferred, and as one aspect thereof, there can be mentioned a polyethylene sheet or a polypropylene sheet in which at least one side has a grid pattern, a grid pattern, or a grainy uneven pattern, The thickness is generally 25 to 100 μm, and in another aspect, at least one surface is coated with silicone by a known coating method such as gravure coating or roll coating to form a release layer. can be mentioned the formed various synthetic resin sheets, coating amount of the silicone is generally 0.5 ~1.5 g / m 2 is suitable as solids, also, the thickness of the synthetic resin sheet that coated the silicone As it is generally 25~100 μm.
[0017]
By the way, although the synthetic resin sheet 4 which has the exposed surface which is the adhesive strength of the said pressure-sensitive-adhesive layer 32 and the said synthetic resin sheet 4 at 50 g / 25mm width or less on at least one surface is preferable, this For example, when a wet tissue impregnated with an alcohol component is folded and stored in the packaging container 1, the synthetic resin sheet 4 is pressed by the evaporation of the alcohol component or the repulsive force of the wet tissue during the distribution process. In some cases, the opening / closing lid label 3 may be contacted and bonded. Even in such a case, for example, the pressure-sensitive adhesive layer 32 which is larger than the take-out port 21 and is configured to remain in the container body 2 when the opening / closing lid label 3 is opened, for example, The synthetic resin sheet 4 having an exposed surface with an adhesive strength of 50 g / 25 mm width or less on at least one side of the synthetic resin sheet 4 weakens the adhesive force and is attached to the upper wall 22 of the container body 2. This is because the contact can prevent the synthetic resin sheet 4 from being lifted together with the opening / closing lid label 3 and can remain in the container body 2.
[0018]
The method of measuring the exposed surface having such adhesive strength is based on JISZ0237, and is reciprocated once on a test plate (SUS-304) with a pressure roll (mass: 2000 ± 50 g, rubber hardness: 80 ± 5 Hs). After 30 minutes, a pressure-sensitive adhesive layer 32 having a peel strength (adhesive strength) of 200 g / 25 mm width or more when peeled 90 degrees from the test plate at a peel rate of 300 mm / min is 80 g / m 2 . Opening / closing lid label 3 provided on one side of (Oji Oil) is prepared, and made of, for example, 30 μm polyethylene having a grid-like uneven pattern formed on one side on the test plate (SUS-304) The opening / closing lid label 3 having a pressure-sensitive adhesive layer 32 having a peel strength (adhesive strength) of 200 g / 25 mm width or more is attached to the sheet with a thickness of 30 μm. A pressure roll (mass: 2000 ± 50 g, rubber hard) on the uneven surface of the polyethylene sheet Degree: 80 ± 5Hs), press and reciprocate once, and after 30 minutes, measure the peel strength (adhesive strength) when peeled 90 ° from the 30μm polyethylene sheet at a peel rate of 300mm / min. An exposed surface having a strength (adhesive strength) of 50 g / 25 mm width or less.
[0019]
The container body 2 is not particularly limited as long as it is a synthetic resin that can be injection-molded. However, for example, polypropylene is appropriate from the viewpoint of cost, ease of molding, and the like.
[0020]
The sealing material 6 is not particularly limited as long as it has a thermal adhesive resin layer that can be thermally bonded to the container body 2 on at least one exposed surface, and has printability and mechanical strength. For example, if the container main body 2 is made of polypropylene, it may be exemplified by a biaxially stretched polyester film / printing layer / adhesive layer / aluminum foil / adhesive layer / unstretched polypropylene film. it can.
[0021]
【The invention's effect】
In the present invention, as has been frequently described so far, a label for an opening / closing lid having a pressure-sensitive adhesive layer is attached to the outlet of the container body, and the contents are taken out by freely opening and closing the outlet. In the packaging container, the pressure sensitive adhesive provided on the opening / closing lid label and the contents can be prevented from coming into contact with each other, and the sheet is brought into contact with and adhered to the pressure sensitive adhesive layer. Also, the sheet can be easily peeled off. In addition, the label for the opening / closing lid may be an inexpensive label without using a high-cost label as in the past, and the non-adhesive coating layer provided by the part coat is dissolved by the chemical of the content. Thus, it is possible to solve the problem of elution into the drug and the problem that the role of the coating layer can no longer be achieved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a packaging container according to the present invention.
FIG. 2 is a cross-sectional view taken along line XX in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Packaging container 2 Container main body 3 Opening / closing lid label 4 Synthetic resin sheet 5 Contents 6 Sealing material
21 Outlet
22 Upper wall
23 Perimeter wall
24 Flange
31 Cutting blade
32 Pressure sensitive adhesive layer
33 Label substrate

Claims (4)

取り出し口となる窓部を備えた上壁と、該上壁の周縁に連接して設けた周壁と、該周壁の自由な周縁に設けたフランジ部とからなる射出成形品である容器本体と、前記取り出し口となる窓部を被覆するように貼設された開閉蓋用ラベルと、前記周壁の自由な周端により囲われた開口を密封するように前記フランジ部に熱接着された密封材とからなる包装容器において、前記開閉蓋用ラベルは一方の面全面に設けられた感圧接着剤層により前記容器本体に対して剥離自在に構成されると共に、前記容器本体の取り出し口となる窓部内の前記感圧接着剤層に接する側に、前記取り出し口となる窓部より大きく、かつ、前記開閉蓋用ラベルの開封時に前記容器本体内に残存するように構成された表出面を少なくとも片方の面に有するシートが前記表出面を前記感圧接着剤層側に位置するように設けられており、前記シートは前記取り出し口となる窓部と相対する位置に穴を備えない1枚の合成樹脂製シートであることを特徴とする包装容器。A container body that is an injection-molded product comprising an upper wall provided with a window portion serving as a take-out port , a peripheral wall connected to the peripheral edge of the upper wall, and a flange portion provided at a free peripheral edge of the peripheral wall ; An opening / closing lid label pasted to cover the window serving as the outlet, and a sealing material thermally bonded to the flange so as to seal an opening surrounded by a free peripheral end of the peripheral wall; In the packaging container, the opening / closing lid label is configured to be peelable from the container body by a pressure-sensitive adhesive layer provided on the entire surface of one side, and a window part serving as an outlet for the container body At least one of the exposed surfaces which are larger than the window portion serving as the outlet and on the side in contact with the pressure-sensitive adhesive layer and which are configured to remain in the container body when the opening / closing lid label is opened The sheet on the surface is the above table The surface is provided so as to be positioned in the pressure-sensitive adhesive layer side, characterized in that said sheet is one synthetic resin sheet having no hole to a position corresponding with the window serving as the outlet A packaging container. 前記表出面が合成樹脂製シートの少なくとも片方の面に設けた凹凸模様であることを特徴とする請求項1記載の包装容器。  The packaging container according to claim 1, wherein the exposed surface is an uneven pattern provided on at least one surface of the synthetic resin sheet. 前記表出面が合成樹脂製シートの少なくとも片方の面に設けた離型層であることを特徴とする請求項1記載の包装容器。  The packaging container according to claim 1, wherein the exposed surface is a release layer provided on at least one surface of the synthetic resin sheet. 前記感圧接着剤層と前記表出面との接着強度が50g/25mm巾以下であることを特徴とする請求項1〜3のいずれかに記載の包装容器。  The packaging container according to any one of claims 1 to 3, wherein an adhesive strength between the pressure-sensitive adhesive layer and the exposed surface is 50 g / 25 mm or less.
JP2000081411A 2000-03-23 2000-03-23 Packaging container Expired - Fee Related JP4549482B2 (en)

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US20100002963A1 (en) * 2008-07-01 2010-01-07 Victor Paul Holbert Reclosable food package with improved shelf life

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5888366U (en) * 1981-12-09 1983-06-15 株式会社資生堂 Wet tissue storage equipment
JPS62105172U (en) * 1985-12-20 1987-07-04
JPH0360432U (en) * 1989-10-13 1991-06-13

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Publication number Priority date Publication date Assignee Title
JPH085505B2 (en) * 1993-08-03 1996-01-24 ジェクス株式会社 Tissue packaging bag

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5888366U (en) * 1981-12-09 1983-06-15 株式会社資生堂 Wet tissue storage equipment
JPS62105172U (en) * 1985-12-20 1987-07-04
JPH0360432U (en) * 1989-10-13 1991-06-13

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