JPH09132272A - Easily openable container - Google Patents

Easily openable container

Info

Publication number
JPH09132272A
JPH09132272A JP7287231A JP28723195A JPH09132272A JP H09132272 A JPH09132272 A JP H09132272A JP 7287231 A JP7287231 A JP 7287231A JP 28723195 A JP28723195 A JP 28723195A JP H09132272 A JPH09132272 A JP H09132272A
Authority
JP
Japan
Prior art keywords
container
polyester
innermost layer
thermoplastic resin
storage container
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.)
Pending
Application number
JP7287231A
Other languages
Japanese (ja)
Inventor
Shinichiro Tanizaki
真一郎 谷崎
Ikuno Shino
郁乃 示野
Yasuhiko Yamano
泰彦 山野
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.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP7287231A priority Critical patent/JPH09132272A/en
Publication of JPH09132272A publication Critical patent/JPH09132272A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide an easily openable container which can be easily opened by an boundary separation by a method wherein amorphous or noncrystal polyester is used as a thermoplastic resin to form the innermost layer of a lid member, and a polyester based resin is used as a thermoplastic resin to form the innermost layer of a content housing container. SOLUTION: For a content housing container and a lid member, in order to impart gas barrier properties such steam barrier propertry and oxygen barrier property, a metal layer such as a metal inorganic oxide or aluminum foil is laminated, and a heat-bonding is done at the bonding surfaces to seal them. In this case, amorphous polyester or noncrystal polyester is used as a thermoplastic resin to form the innermost layer of the lid member, and a polyester based resin is used as a thermoplastic resin to form the innermost layer of the content housing container. Or, respective thermoplastic resins are used in the opposite way. Then, the degree of the crystalization of the amorphous polyester or the noncrystal, polyester is made 10-30%, and by doing so, the bonding strength between the lid member and the content housing container is adjusted.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、蓋材と内容を収納して
いる内容物収納容器と蓋材が、熱接着する容器に関する
ものであり、特に内容物の飲食時又は使用時に蓋材を用
意に開封できる易開封性容器に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container in which a lid member and a contents storage container for storing contents and a lid member are heat-bonded to each other. The present invention relates to an easily openable container that can be easily opened.

【0002】[0002]

【従来の技術】従来容器に内容物を収納し、蓋材を容器
に熱接着することにより、内容物収納容器を密封するも
のが知られていた。そして、内容物を飲食又は使用する
ためにナイフ又はカッター等の刃物を使用して蓋材が開
封されていた。しかし、刃物等を使用して容器を開封す
る場合は、蓋材に水蒸気バリヤー性、酸素バリヤー性等
のガスバリヤー性を持たせるために、無機酸化物、又は
アルミニユウム箔等の金属層が設けられることがあり、
また、内容物により刃が酸化するなどして刃物等の刃が
悪くなったり、また刃物等により手を傷つける場合が生
じた。そのため、蓋材を内容物収納容器から剥離する方
法が3種類考えれている。そして、その3種類の方法の
中の第1の方法として蓋材と内容物収納容器の接着面に
おいて剥離する界面剥離、第2の方法として蓋材の最内
層となる熱可塑性樹脂層の凝集破壊による蓋材と内容物
収納容器の剥離、また、第3の方法として蓋材が積層材
により形成されている場合に、積層材の積層された樹脂
層の間での層間剥離での剥離であり、上記各方法によ
り、内容物収納容器を容易に開封できる易開封性容器が
使用されていた。
2. Description of the Related Art Conventionally, it has been known to seal a contents storage container by storing the contents in a container and thermally adhering a lid member to the container. Then, the lid member has been opened using a knife such as a knife or a cutter for eating or using the contents. However, when the container is opened using a knife or the like, an inorganic oxide or a metal layer such as an aluminum foil is provided in order to give the lid material gas barrier properties such as water vapor barrier property and oxygen barrier property. Sometimes
Further, the blades such as blades may be deteriorated due to oxidation of the blades due to the contents, or the hands may be damaged by the blades. Therefore, three types of methods for separating the lid member from the contents storage container are considered. Then, as a first method among the three methods, interfacial peeling is performed at the bonding surface between the lid material and the content storage container, and as a second method, cohesive failure of the thermoplastic resin layer which is the innermost layer of the lid material. Peeling of the lid material and the contents storage container by means of the third method, and as a third method, when the lid material is made of a laminated material, delamination between the laminated resin layers of the laminated material. By the above methods, an easy-open container that can easily open the contents storage container has been used.

【0003】ただし、第1の方法の界面剥離方法では、
容器と蓋材が強固に接着してしまい確実に剥離せずに、
蓋材の最内面の一部が内容物収納容器の開口部を膜状に
覆ってしまうことがあった。また、第2の方法の凝集破
壊方法では、剥離した蓋材の接着面が内容物収納容器の
周縁端に残ってしまい、見た目に汚く、食品容器等には
使用することができなかった。それに対して、第3の方
法の層間剥離方法では、確実に内容物収納容器と蓋材を
剥離することができた。
However, in the interfacial peeling method of the first method,
The container and lid are firmly adhered to each other, and they do not peel off securely,
A part of the innermost surface of the lid material may cover the opening of the content storage container in a film shape. Further, in the cohesive failure method of the second method, the adhesive surface of the peeled cover material remains on the peripheral edge of the contents storage container, and it looks ugly and cannot be used for food containers and the like. On the other hand, in the delamination method of the third method, the content container and the lid material could be reliably peeled off.

【0004】また、従来の食品容器等に使用される内容
物収納容器と蓋材の最内層の素材は、内容物収納容器お
よび蓋材とも熱可塑性樹脂が使用されており、その中で
もポリオレフィン系樹脂が使用されており、特にポリエ
チレンが使用されていた。しかし、ポリエチレンは内容
物にポリエチレンの臭いが移ってしまい、内容物が異臭
を発生する問題が生じていた。そのため、現在は内容物
収納容器および蓋材とも、内容物に樹脂の臭いを移さな
い、ポリエステル系樹脂が使用され始めている。
Further, as the material for the innermost layer of the contents storage container and the lid material used in conventional food containers and the like, a thermoplastic resin is used for both the contents storage container and the lid material. Was used, especially polyethylene was used. However, polyethylene has a problem in that the smell of polyethylene is transferred to the contents, causing the contents to give off a strange odor. Therefore, at present, polyester resins, which do not transfer the odor of resin to the contents, have begun to be used for both the contents storage container and the lid member.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、ポリエ
ステル系樹脂により形成された内容物収納容器と蓋材で
は、上記の層間剥離方法で内容物収納容器と蓋材の接着
する最内として使用とすると、内容物収納容器と蓋材の
接着強度の調整を行うことが困難であり、接着強度が高
くなり、容易に開封することができなかったり、また、
接着強度が低くなり容器を輸送中等において、内容物収
納容器から蓋材が剥離することがあった。
However, in the contents storage container and the lid member formed of the polyester resin, if the contents storage container and the lid member are used as the innermost part of the adhesion between the contents storage container and the lid member by the above-mentioned delamination method, It is difficult to adjust the adhesive strength between the contents storage container and the lid material, and the adhesive strength becomes high, and it cannot be easily opened.
The adhesive strength was lowered, and the lid material sometimes peeled from the content storage container during transportation of the container.

【0006】本発明は、上記課題を解決するためになさ
れたものであって、容器と蓋材の臭いを内容物に移さな
いポリエステル系樹脂を使用し、さらに界面剥離方法に
おいても容易に内容物収納容器を開封できる、易開封性
容器を提供することを目的とするものである。
The present invention has been made in order to solve the above problems, and uses a polyester resin which does not transfer the odor of the container and the lid material to the contents. Further, the contents can be easily removed by the interfacial peeling method. It is an object of the present invention to provide an easily openable container that can open a storage container.

【0007】[0007]

【課題を解決するための手段】上記の目的を達成するた
めに、本発明は、熱可塑性樹脂を最内層とした単層材又
は積層材により形成された蓋材と、前記蓋材の最内層と
熱接着する熱可塑性樹脂を最内層とした内容物収納容器
を、接着面において熱接着して密封してなる容器におい
て、アモルファスポリエステル又は非結晶性ポリエステ
ルを前記蓋材の最内層を形成する熱可塑性樹脂として用
い、ポリエステル系樹脂を前記内容物収納容器の最内層
を形成する熱可塑性樹脂として用いた易開封性容器を提
供するものである。
In order to achieve the above object, the present invention provides a lid material formed of a single layer material or a laminated material having a thermoplastic resin as an innermost layer, and an innermost layer of the lid material. In a container in which a contents storage container having a thermoplastic resin as an innermost layer that is heat-bonded to is sealed by heat-bonding at the bonding surface, amorphous polyester or amorphous polyester is used to form the innermost layer of the lid material. It is intended to provide an easily openable container which is used as a plastic resin and uses a polyester resin as a thermoplastic resin forming an innermost layer of the content storage container.

【0008】また、さらに上記易開封性容器において、
ポリエステル系樹脂を前記蓋材の最内層を形成する熱可
塑性樹脂として用い、アモルファスポリエステル又は非
結晶性ポリエステルを前記内容物収納容器の最内層を形
成する熱可塑性樹脂として用いた易開封性容器を提供す
るものである。
Further, in the above-mentioned easy-open container,
Provided is an easy-open container in which a polyester resin is used as a thermoplastic resin forming the innermost layer of the lid material, and amorphous polyester or amorphous polyester is used as a thermoplastic resin forming the innermost layer of the content storage container. To do.

【0009】また、上記アモルファスポリエステル又は
非結晶ポリエステルの結晶化度を10〜30%とするこ
とにより蓋材と内容物収納容器の接着強度を調整するこ
とができる易開封性容器を提供するものである。
Further, by providing the crystallinity of the above-mentioned amorphous polyester or non-crystalline polyester to 10 to 30%, there is provided an easily openable container capable of adjusting the adhesive strength between the lid member and the contents storage container. is there.

【0010】[0010]

【作用】本発明による易開封性容器は、内容物収納容器
又は蓋材の最内層にアモルファスポリエステル又は非結
晶ポリエステルを使用し、内容物収納容器又は蓋材にポ
リエステル系樹脂を使用して、容器を成形しているの
で、内容物収納容器と蓋材の接着強度を十分に得ること
できるとともに、開封時において容易に内容物収納容器
と蓋材を剥離させ、開封することができる。
The easily-openable container according to the present invention uses an amorphous polyester or an amorphous polyester as the innermost layer of the content storage container or the lid, and uses a polyester resin as the content storage container or the lid. Since it is molded, the adhesive strength between the content storage container and the lid material can be sufficiently obtained, and at the time of opening, the content storage container and the lid material can be easily peeled off and opened.

【0011】また、上記アモルファスポリエステル又は
非結晶ポリエステルの結晶化度を10〜30%とするこ
とにより、内容物収納容器の大きさ、内容物収納容器又
は蓋材の成形素材により蓋材と容器の接着強度を調整す
ることができる。
Further, by setting the crystallinity of the above-mentioned amorphous polyester or non-crystalline polyester to 10 to 30%, the size of the content storage container and the molding material of the content storage container or the cover material can be used to form a lid material and a container. The adhesive strength can be adjusted.

【0012】[0012]

【実施例】本発明は、内容物収納容器と内容物収納容器
を密封する蓋材からできている。内容物収納容器および
蓋材は、水蒸気バリヤー性、酸素バリヤー性等のガスバ
リヤー性を持たせるために、金属無機酸化物又はアルミ
ニユウム箔等の金属層を積層し、最内層に熱可塑性樹脂
が積層された積層材を使用することが多いが、単層で形
成してもよい。本発明では内容物収納容器又は蓋材の最
内層に、アモルファスポリエステル又は非結晶ポリエス
テルが使用される。アモルファスポリエステルとは、製
膜プロセスにおいて、2軸延伸と行なっていないので、
フィルムの延伸配向や、熱安定性を付与するためにアー
ニング(熱処理)を行なわない無延伸で非結晶性を保っ
たポリエステルのことである。また、非結晶性ポリエス
テルとは、樹脂の結晶性を低下させるための酸成分、あ
るいはグリコール成分を第3成分として共重合したもの
や、その樹脂をブレンドすることで、結晶性を示さない
ポリエステルのことである。アモルファスポリエステル
又は非結晶ポリエステルを使用する時に、アモルファス
ポリエステル又は非結晶ポリエステルの結晶化度を調整
することにより、容器と蓋材の接着強度を調整すること
ができ、よって、容器と蓋材の剥離を容易に行えるもの
である。つまり、結晶化度を調整し、結晶化度を低くす
ることにより、内容物収納容器と蓋材の相溶化に寄与す
る樹脂量が多いためにシール強度が強く、結晶化度が高
くなると、接着面での相溶化に寄与する樹脂量が少なく
なるために接着強度が弱くなるので、上記のように結晶
化度を調整することにより、接着強度を低くすることが
できる。アモルファスポリエステル又は非結晶ポリエス
テルは、内容物収納容器又は蓋材のどちらかに使用する
必要があるが、内容物収納容器に使用した場合は蓋材は
未延伸ポリエステル系樹脂が使用される、また、内容物
収納容器の最内面にアモルファスポリエステル又は非結
晶ポリエステルを使用した場合は、内容物収納容器に上
記未延伸ポリエステル系樹脂を使用することもできる。
上記未延伸ポリエステル系樹脂は、未延伸ポリエチレン
テレフタレート、未延伸ポリブチレンテレフタレート及
びブレンド品が使用できるが、内容物収納容器又は蓋材
の最内層にアモルファスポリエステルを使用した場合
は、蓋材又は内容物収納容器にアモルファスポリエステ
ル使用することはできない。これは、アモルファスポリ
エステル同志が強固に接着していまい、内容物収納容器
と蓋材が剥離せず、容易に開封することができないため
である。以下、実施例により、本発明を詳しく説明す
る。
BEST MODE FOR CARRYING OUT THE INVENTION The present invention comprises a contents container and a lid member for sealing the contents container. In order to have gas barrier properties such as water vapor barrier property and oxygen barrier property, the content storage container and lid material are laminated with metal layers such as metal inorganic oxide or aluminum foil, and thermoplastic resin is laminated on the innermost layer. Although a laminated material is often used, it may be formed as a single layer. In the present invention, amorphous polyester or amorphous polyester is used for the innermost layer of the content storage container or the lid. Amorphous polyester is not biaxially stretched in the film forming process, so
It is a non-stretched, non-crystalline polyester that is not subjected to earning (heat treatment) to impart stretch orientation and heat stability to the film. In addition, the non-crystalline polyester refers to a copolymer obtained by copolymerizing an acid component or a glycol component as a third component for reducing the crystallinity of a resin, or a polyester that does not show crystallinity by blending the resin. That is. When using amorphous polyester or non-crystalline polyester, by adjusting the crystallinity of the amorphous polyester or non-crystalline polyester, it is possible to adjust the adhesive strength between the container and the lid material, and thus the peeling of the container and the lid material. It can be done easily. In other words, by adjusting the crystallinity and lowering the crystallinity, the amount of resin that contributes to the compatibilization of the content container and the lid material is large, so the sealing strength is strong, and when the crystallinity is high, the adhesion Since the amount of resin that contributes to the compatibilization on the surface decreases, the adhesive strength becomes weak. Therefore, the adhesive strength can be lowered by adjusting the crystallinity as described above. Amorphous polyester or amorphous polyester, it is necessary to use in either the content storage container or the lid material, when used in the content storage container lid material is used unstretched polyester resin, When amorphous polyester or non-crystalline polyester is used for the innermost surface of the content storage container, the unstretched polyester resin may be used for the content storage container.
The unstretched polyester resin can be unstretched polyethylene terephthalate, unstretched polybutylene terephthalate and blended products, but when amorphous polyester is used as the innermost layer of the content storage container or the lid material, the lid material or the content. Amorphous polyester cannot be used for the storage container. This is because the amorphous polyesters adhere firmly to each other, the content container and the lid material do not peel off, and the container cannot be easily opened. Hereinafter, the present invention will be described in detail with reference to examples.

【0013】本発明の本実施例において、蓋材を最内層
からアモルファスポリエチレンテレフタレート(厚さ6
0μ)/アルミニュウム/2軸延伸ポリエチレンテレフ
タレート(厚さ12μ)からなる積層材をラミネートす
ることにより成形した。そして、容器を真空圧空成形法
により成形した。次いで、上記積層材からなる蓋材を1
0度刻みで温度を90〜140度の間でで、上記積層材
を各10分間保持して積層材を結晶化させる。次いで、
200度、圧力1Kg/cm2 、速さ1secの熱接着
条件で容器を熱接着した。図1に、熱処理したものの結
晶化度と、シール強度を示す。ここで、上記のように結
晶化度を変化させる方法は、密度を変化させる方法、同
じ温度で保持時間を異なるようにする方法等があり、本
実施例では保持温度を異なるようにする方法により、結
晶化度を変化させることができる。
In this embodiment of the present invention, the lid material is formed from the innermost layer to amorphous polyethylene terephthalate (thickness: 6).
0 μ) / aluminum / biaxially-stretched polyethylene terephthalate (thickness 12 μ). And the container was shape | molded by the vacuum pressure forming method. Next, a lid material made of the above laminated material is used.
The laminate is crystallized by holding the laminate for 10 minutes at a temperature of 90 ° to 140 ° in steps of 0 °. Then
The container was heat-bonded under the heat-bonding conditions of 200 degrees, a pressure of 1 Kg / cm 2 , and a speed of 1 sec. FIG. 1 shows the crystallinity and seal strength of the heat-treated product. Here, as a method of changing the crystallinity as described above, there are a method of changing the density, a method of making the holding time different at the same temperature, and the like, and in this embodiment, the holding temperature is made different. , The degree of crystallinity can be changed.

【0014】図1に示されるように、結晶化度を変化さ
せることにより、接着強度を変化させることができる。
よって、熱接着強度を自由に変化させることができるの
で、内容物収納容器と蓋材の剥離を容易に行え、容易に
内容物収納容器と蓋材を開封することができる。
As shown in FIG. 1, the adhesive strength can be changed by changing the crystallinity.
Therefore, since the thermal bonding strength can be freely changed, the contents container and the lid member can be easily peeled off, and the contents container and the lid member can be easily opened.

【0015】[0015]

【発明の効果】以上示したように、本発明の易開封性容
器は、ポリエステル系樹脂を内容物収納容器および蓋材
に用いた容器において、アモルファスポリエステル又は
非結晶ポリエステルを内容物収納容器又は蓋材の最内層
に用いたことにより、蓋材と内容物収納容器との接着強
度を自由に変えることができるので、内容物収納容器と
蓋材の剥離を行えるので、容易に容器を開封することが
できる易開封性容器を得ることができた。
As described above, the easy-open container of the present invention is a container using a polyester-based resin as a content storage container and a lid material, wherein amorphous polyester or amorphous polyester is used as the content storage container or lid. By using it as the innermost layer of the material, the adhesive strength between the lid material and the contents storage container can be freely changed, so that the contents storage container and the lid material can be peeled off, so the container can be easily opened. It was possible to obtain an easily openable container capable of

【0016】また、ポリエステル系樹脂を内容物収納容
器および蓋材の最内層に用いているので、内容物収納容
器及び蓋材の最内層の臭いを、内容物に移すことがな
い。また、ポリエステル系樹脂は対内容物性がよく、内
容物に適した易開封性容器を得ることができる。
Further, since the polyester resin is used for the innermost layer of the contents storage container and the lid member, the odor of the innermost layer of the contents storage container and the lid member is not transferred to the contents. Moreover, the polyester resin has good physical properties against contents, and an easily openable container suitable for the contents can be obtained.

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

【図1】本発明の蓋材を熱処理した後の結晶化度と、シ
ール強度を示す対応図である。
FIG. 1 is a correspondence diagram showing a crystallinity and a seal strength after heat treating a lid material of the present invention.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】熱可塑性樹脂を最内層とした単層材又は積
層材により形成された蓋材と、前記蓋材の最内層と熱接
着する熱可塑性樹脂を最内層とした内容物収納容器と
を、熱接着し密封してなる容器において、アモルファス
ポリエステル又は非結晶性ポリエステルを前記蓋材の最
内層を形成する熱可塑性樹脂として用い、ポリエステル
系樹脂を前記内容物収納容器の最内層を形成する熱可塑
性樹脂として用いたことを特徴とする易開封性容器。
1. A lid member formed of a single-layer material or a laminated material having a thermoplastic resin as an innermost layer, and a contents storage container having a thermoplastic resin as an innermost layer which is heat-bonded to the innermost layer of the lid material. In a container which is heat-bonded and hermetically sealed, amorphous polyester or amorphous polyester is used as a thermoplastic resin for forming the innermost layer of the lid material, and a polyester resin is used for forming the innermost layer of the contents storage container. An easily openable container characterized by being used as a thermoplastic resin.
【請求項2】熱可塑性樹脂を最内層とした単層材又は積
層材により形成された蓋材と、前記蓋材の最内層と熱接
着する熱可塑性樹脂を最内層とした内容物収納容器と
を、熱接着し密封してなる容器において、ポリエステル
系樹脂を前記蓋材の最内層を形成する熱可塑性樹脂とし
て用い、アモルファスポリエステル又は非結晶性ポリエ
ステルを前記内容物収納容器の最内層を形成する熱可塑
性樹脂として用いたことを特徴とする易開封性容器。
2. A lid material formed of a single layer material or a laminated material having a thermoplastic resin as an innermost layer, and a contents storage container having a thermoplastic resin as an innermost layer which is heat-bonded to the innermost layer of the lid material. In a container which is heat-sealed and hermetically sealed, a polyester resin is used as a thermoplastic resin forming an innermost layer of the lid material, and an amorphous polyester or an amorphous polyester is formed as an innermost layer of the content storage container. An easily openable container characterized by being used as a thermoplastic resin.
【請求項3】アモルファスポリエステル又は非結晶性ポ
リエステルの結晶化度を10〜30%とすることによ
り、蓋材と内容物収納容器の接着強度を調整することを
特徴とする請求項1又は請求項2に記載の易開封性容
器。
3. The adhesive strength between the lid member and the content storage container is adjusted by adjusting the crystallinity of the amorphous polyester or the non-crystalline polyester to 10 to 30%. The easily openable container described in 2.
JP7287231A 1995-11-06 1995-11-06 Easily openable container Pending JPH09132272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7287231A JPH09132272A (en) 1995-11-06 1995-11-06 Easily openable container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7287231A JPH09132272A (en) 1995-11-06 1995-11-06 Easily openable container

Publications (1)

Publication Number Publication Date
JPH09132272A true JPH09132272A (en) 1997-05-20

Family

ID=17714741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7287231A Pending JPH09132272A (en) 1995-11-06 1995-11-06 Easily openable container

Country Status (1)

Country Link
JP (1) JPH09132272A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009046171A (en) * 2007-08-21 2009-03-05 Kyoto Refre Shinyaku Kk Volatile medicine container
JP2020055534A (en) * 2018-09-28 2020-04-09 株式会社吉野工業所 Delamination container
WO2022215700A1 (en) * 2021-04-06 2022-10-13 大日本印刷株式会社 Liquid storing container, liquid-filled container, and method for producing prescribed quantity of drug solution

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62231720A (en) * 1986-04-01 1987-10-12 Teijin Ltd Polyester vessel and its manufacture
JPH05229050A (en) * 1991-12-24 1993-09-07 Sekisui Chem Co Ltd Easy release packing material and hermetically sealed container
JPH06122180A (en) * 1992-10-09 1994-05-06 Dainippon Printing Co Ltd Lid material for press-through pack
JPH06126916A (en) * 1992-10-14 1994-05-10 Toppan Printing Co Ltd Polyester laminate
JPH06183471A (en) * 1992-12-22 1994-07-05 Showa Denko Kk Aromatic sealed container and method for filling aromatic into container

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62231720A (en) * 1986-04-01 1987-10-12 Teijin Ltd Polyester vessel and its manufacture
JPH05229050A (en) * 1991-12-24 1993-09-07 Sekisui Chem Co Ltd Easy release packing material and hermetically sealed container
JPH06122180A (en) * 1992-10-09 1994-05-06 Dainippon Printing Co Ltd Lid material for press-through pack
JPH06126916A (en) * 1992-10-14 1994-05-10 Toppan Printing Co Ltd Polyester laminate
JPH06183471A (en) * 1992-12-22 1994-07-05 Showa Denko Kk Aromatic sealed container and method for filling aromatic into container

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009046171A (en) * 2007-08-21 2009-03-05 Kyoto Refre Shinyaku Kk Volatile medicine container
JP2020055534A (en) * 2018-09-28 2020-04-09 株式会社吉野工業所 Delamination container
WO2022215700A1 (en) * 2021-04-06 2022-10-13 大日本印刷株式会社 Liquid storing container, liquid-filled container, and method for producing prescribed quantity of drug solution
JPWO2022215700A1 (en) * 2021-04-06 2022-10-13

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