JP3710615B2 - Delamination container - Google Patents

Delamination container Download PDF

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Publication number
JP3710615B2
JP3710615B2 JP36712697A JP36712697A JP3710615B2 JP 3710615 B2 JP3710615 B2 JP 3710615B2 JP 36712697 A JP36712697 A JP 36712697A JP 36712697 A JP36712697 A JP 36712697A JP 3710615 B2 JP3710615 B2 JP 3710615B2
Authority
JP
Japan
Prior art keywords
container
layer
seal
delamination
mouth
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 - Fee Related
Application number
JP36712697A
Other languages
Japanese (ja)
Other versions
JPH11189273A (en
Inventor
伸治 嶋田
正夫 天雲
孝之 後藤
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.)
Yoshino Kogyosho Co Ltd
Original Assignee
Yoshino Kogyosho 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 Yoshino Kogyosho Co Ltd filed Critical Yoshino Kogyosho Co Ltd
Priority to JP36712697A priority Critical patent/JP3710615B2/en
Publication of JPH11189273A publication Critical patent/JPH11189273A/en
Application granted granted Critical
Publication of JP3710615B2 publication Critical patent/JP3710615B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • B65D1/0215Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered

Description

【0001】
【発明の属する技術分野】
本発明は、容器口部に大気導入孔を形成した積層剥離容器、とくに積層剥離容器の容器底部に形成された底シール部の構造に関する。
【0002】
【従来の技術】
積層押出しブロー成形によって成型され、容器口部に大気導入孔を形成し、容器底部のピンチオフ部をシールするようにした積層剥離容器は従来より知られている。
【0003】
【発明が解決しようとする課題】
しかしながら、積層剥離容器では、外側層と内側層との剥離性を高めるためには、接着性の弱い樹脂を用いなくてはならず、従来の容器では、容器の底シール部に層間剥離によるスリットが発生するという問題点があった。
そこで、ピンチオフ部に溶着突条を形成し、外側層同士を溶着させるようにすることが提案されたが(特公平6−102076号公報参照)、樹脂によっては外側層同士の溶着も不充分となるため、スリットの発生を防ぐことができなかった。
【0004】
また、底シール部の突条を形成する各融着層を相互に噛み合うよう融着させることが提案されているが、金型のピンチオフ部の構造が複雑になり、高精度が必要であるので、金型が容易にかつ安価に製造できないという問題点があった。
【0005】
本発明は、上記の問題点を解決し、容器の底シール部の構造に関係なく、容器口部に設けた大気導入孔より効果的に大気を導入するようにすることを技術的課題とし、容器の底シール部を塗膜層で被覆密封した積層剥離容器を提供することを目的とする。
【0006】
【課題を解決するための手段】
本発明は、上記の技術的課題を達成するため、容器口部に大気導入孔を設けた積層剥離容器であって、容器底部に形成された平底壁に、パーティングラインに沿ってインク塗料を塗布し底シール部を被覆密封する塗膜層を形成したことを特徴とする構成を採用する。
【0007】
【発明の実施の形態】
次に、本発明の実施形態について、図面を参照して説明する。
図1において、1は、外側層2と内側層3とからなる積層剥離容器であって、積層押出しブロー成形によって成型されている。
前記外側層2は、高密度ポリエチレン、その他の硬質の合成樹脂を素材樹脂とする容器の外観形状を維持するものであり、内側層3は、ナイロン、またはE/VALを素材樹脂とする外側層から剥離自在、かつ変形自在の内袋である。
積層剥離容器1は、容器口部4と楕円形もしくは円形の容器胴部5と容器底部6とから構成され、容器口部4の外側層2には、外側層2と内側層3との間に大気を導入する大気導入孔7が穿孔されている。
8は係止片であって、内容液の注出時に内側層3の沈み込みを防ぐものである。 9は外側層2と内側層3の一部を接着する接着帯で、内容液注出時に内側層3の変形を一定形状に進行するよう規制するものである。
【0008】
図2,3に示すように、容器底部6は、底端壁10と該底端壁10から内方に窪んだ位置に形成された平底壁11とを有している。
平底壁11には、インク塗料が、印刷装置または塗装装置によってパーティングラインに沿って一定の幅に塗布され、底シール部12を被覆密封する塗膜層13が形成されている。
【0009】
インク塗料として、内外層の樹脂に対して接着性の良好なインク塗料を適宜に選択して用いられるが、外側層2の樹脂と同材料のポリマーをバインダーとして含有したインク塗料が好ましい。
【0010】
次に、上記構成に基づく作用効果について説明する。
積層剥離容器1の使用に際しては、容器口部4にポンプディスペンサーが取り付けられ、該ポンプディスペンサーによって内容液を注出するようにされるが、注出時に大気導入孔7より大気が導入され、内側層3が収縮変形される。
その際、底シール部12は、塗膜層13によって固着され、被覆密封されているので底シール部12から大気が導入されることはなく、容器口部4の大気導入孔7から効率よく大気を導入することができる。
また、容器を風呂場等濡れた場所で使用しても、底シール部12から空気と一緒に湯水が容器内に侵入することはない。
【0011】
【発明の効果】
本発明は、上記のように構成されているから、次の効果を奏する。
積層剥離容器の容器底部の底シール部を塗膜層で被覆密封しているので、底シール部からの大気の導入をなくすことができ、容器口部に設けた大気導入孔より効率的に大気を導入することができる。
また、インク塗料をパーティングラインに沿って塗布するだけであるので、積層剥離容器を容易にかつ低コストで製造することができる。
【図面の簡単な説明】
【図1】積層剥離容器の一部断面側面図である。
【図2】容器の底面図である。
【図3】塗膜層で被覆した底シール部の断面図である。
【符号の説明】
1 積層剥離容器
2 外側層
3 内側層
4 容器口部
5 容器胴部
6 容器底部
7 大気導入孔
10 底端壁
11 平底壁
12 底シール部
13 塗膜層
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a laminated peeling container in which an air inlet hole is formed in a container mouth, and particularly to a structure of a bottom seal part formed at the container bottom of the laminated peeling container.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a laminate peeling container that is molded by laminate extrusion blow molding, has an air introduction hole formed in a container mouth, and seals a pinch-off portion at the bottom of the container has been known.
[0003]
[Problems to be solved by the invention]
However, in order to improve the peelability between the outer layer and the inner layer in the laminate peeling container, it is necessary to use a resin having low adhesiveness. In the conventional container, a slit due to delamination is formed in the bottom seal portion of the container. There was a problem that occurred.
Therefore, it has been proposed to form a welding ridge at the pinch-off portion to weld the outer layers (see Japanese Patent Publication No. 6-102076), but depending on the resin, the welding between the outer layers is insufficient. Therefore, the generation of slits could not be prevented.
[0004]
In addition, it has been proposed to fuse the fusion layers forming the protrusions of the bottom seal portion so as to mesh with each other, but the structure of the pinch-off portion of the mold becomes complicated and high accuracy is required. However, there is a problem that the mold cannot be manufactured easily and inexpensively.
[0005]
The present invention solves the above-mentioned problems, and makes it a technical problem to introduce the atmosphere more effectively than the air introduction hole provided in the container mouth, regardless of the structure of the bottom seal part of the container. It is an object of the present invention to provide a delamination container in which the bottom seal portion of the container is covered and sealed with a coating layer.
[0006]
[Means for Solving the Problems]
In order to achieve the above technical problem, the present invention is a delamination container having an air inlet hole in a container mouth, and an ink paint is applied to a flat bottom wall formed in the container bottom along a parting line. The structure characterized by having formed the coating layer which coat | covers and seals a bottom seal part by application | coating is employ | adopted.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, 1 is a lamination peeling container which consists of the outer layer 2 and the inner layer 3, and is shape | molded by lamination | stacking extrusion blow molding.
The outer layer 2 maintains the appearance of a container made of high-density polyethylene or other hard synthetic resin as a material resin, and the inner layer 3 is an outer layer made of nylon or E / VAL as a material resin. It is an inner bag that can be peeled off and deformed.
The delamination container 1 is composed of a container mouth part 4, an elliptical or circular container body part 5, and a container bottom part 6, and the outer layer 2 of the container mouth part 4 has a space between the outer layer 2 and the inner layer 3. An air introduction hole 7 for introducing the atmosphere into is provided.
Reference numeral 8 denotes a locking piece that prevents the inner layer 3 from sinking when the content liquid is poured out. Reference numeral 9 denotes an adhesive band for bonding a part of the outer layer 2 and the inner layer 3, and restricts the deformation of the inner layer 3 to progress to a certain shape when the content liquid is poured out.
[0008]
As shown in FIGS. 2 and 3, the container bottom 6 has a bottom end wall 10 and a flat bottom wall 11 formed at a position recessed inward from the bottom end wall 10.
On the flat bottom wall 11, an ink coating is applied with a certain width along a parting line by a printing device or a coating device, and a coating layer 13 that covers and seals the bottom seal portion 12 is formed.
[0009]
As the ink paint, an ink paint having good adhesion to the resin of the inner and outer layers is appropriately selected and used, but an ink paint containing a polymer of the same material as the resin of the outer layer 2 as a binder is preferable.
[0010]
Next, the effect based on the said structure is demonstrated.
When the delamination container 1 is used, a pump dispenser is attached to the container opening 4 and the content liquid is poured out by the pump dispenser. Layer 3 is contracted and deformed.
At that time, since the bottom seal portion 12 is fixed by the coating layer 13 and is hermetically sealed, the atmosphere is not introduced from the bottom seal portion 12, and the atmosphere is efficiently introduced from the atmosphere introduction hole 7 of the container mouth portion 4. Can be introduced.
Further, even when the container is used in a wet place such as a bathroom, hot water does not enter the container together with air from the bottom seal portion 12.
[0011]
【The invention's effect】
Since this invention is comprised as mentioned above, there exists the following effect.
Since the bottom seal part of the bottom of the delamination container is covered and sealed with a coating layer, the introduction of air from the bottom seal part can be eliminated, and the atmosphere can be efficiently introduced from the air introduction hole provided in the container mouth part. Can be introduced.
Moreover, since the ink coating is simply applied along the parting line, the delamination container can be manufactured easily and at low cost.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional side view of a delamination container.
FIG. 2 is a bottom view of the container.
FIG. 3 is a cross-sectional view of a bottom seal portion covered with a coating layer.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lamination peeling container 2 Outer layer 3 Inner layer 4 Container mouth part 5 Container trunk | drum 6 Container bottom part 7 Atmospheric introduction hole 10 Bottom end wall 11 Flat bottom wall 12 Bottom seal part 13 Coating layer

Claims (1)

容器口部に大気導入孔を設けた積層剥離容器であって、容器底部に形成された平底壁に、パーティングラインに沿ってインク塗料を塗布し底シール部を被覆密封する塗膜層を形成したことを特徴とする積層剥離容器。A delamination container with an air inlet hole in the container mouth, and a coating layer that covers and seals the bottom seal part by applying ink paint along the parting line on the flat bottom wall formed at the bottom of the container A delamination container characterized by that.
JP36712697A 1997-12-25 1997-12-25 Delamination container Expired - Fee Related JP3710615B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP36712697A JP3710615B2 (en) 1997-12-25 1997-12-25 Delamination container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP36712697A JP3710615B2 (en) 1997-12-25 1997-12-25 Delamination container

Publications (2)

Publication Number Publication Date
JPH11189273A JPH11189273A (en) 1999-07-13
JP3710615B2 true JP3710615B2 (en) 2005-10-26

Family

ID=18488527

Family Applications (1)

Application Number Title Priority Date Filing Date
JP36712697A Expired - Fee Related JP3710615B2 (en) 1997-12-25 1997-12-25 Delamination container

Country Status (1)

Country Link
JP (1) JP3710615B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180093020A (en) 2015-12-09 2018-08-20 가부시끼가이샤 헤이와 가가꾸 고교쇼 Double vessel and its manufacturing method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4727016B2 (en) * 1999-09-30 2011-07-20 株式会社クラレ Fuel container with excellent gasoline barrier properties
JP2019127315A (en) * 2018-01-26 2019-08-01 株式会社吉野工業所 Delamination container

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180093020A (en) 2015-12-09 2018-08-20 가부시끼가이샤 헤이와 가가꾸 고교쇼 Double vessel and its manufacturing method
US10954022B2 (en) 2015-12-09 2021-03-23 Heiwa Kagaku Industry Co., Ltd. Double walled container

Also Published As

Publication number Publication date
JPH11189273A (en) 1999-07-13

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