JPH08217100A - Laminated tube container - Google Patents
Laminated tube containerInfo
- Publication number
- JPH08217100A JPH08217100A JP4366295A JP4366295A JPH08217100A JP H08217100 A JPH08217100 A JP H08217100A JP 4366295 A JP4366295 A JP 4366295A JP 4366295 A JP4366295 A JP 4366295A JP H08217100 A JPH08217100 A JP H08217100A
- Authority
- JP
- Japan
- Prior art keywords
- tube container
- laminated tube
- layer
- head
- laminated
- 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.)
- Granted
Links
Landscapes
- Tubes (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は，特殊な硬化成分を含む
接着剤、特殊な薬効成分、芳香成分、高揮発成分等を含
む医薬品、化粧品等のペースト状製品に利用される押し
出し容器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extrusion container used for a paste-like product such as an adhesive containing a special hardening component, a special medicinal component, an aromatic component, a highly volatile component, etc.
【０００２】[0002]
【従来の技術】これまでの積層チューブ容器に酸素、水
蒸気、香気成分等に対するバリアー性を付与するには胴
部に関してはアルミ箔を中間層にサンドウィチする方法
が効果的に使用されている。しかるにこの胴部に接続さ
れる肩部と口頚部からなるヘッド部に関しては肩部の傾
斜に合わせたリング状アルミ部材（内面はプラスチック
でコートされている。）がヘッド成形時に図２に示すよ
うに挿入されているものが一般的である。またヘッド部
の形状に合わせて予めプラスチックで成形した薄肉部材
が内側に挿入された押し出し容器が米国特許第３５６５
２９３号、特開昭５８−１２４６２３で提案されてい
る。前者では、ユリアホルムアルデヒド熱硬化性樹脂の
使用がまた後者ではポリエチレンテレフタレート樹脂
（ＰＥＴ）あるいはポリブチレンテレフタレート樹脂
（ＰＢＴ）の使用が提案されている。ポリアクリロニト
リルコポリマーが内容物成分の浸透、吸着防止等に効果
があり、また、酸素ガスバリアー性のあることは知られ
ており、特公昭５７−６０２３４ではポリアクリロニト
リルコポリマーを胴部の最内層と最外層に使用した積層
チューブ容器が提案されている。2. Description of the Related Art In order to impart a barrier property against oxygen, water vapor, aroma components and the like to conventional laminated tube containers, a method of sandwiching an aluminum foil as an intermediate layer is effectively used for the body. However, as to the head portion including the shoulder portion and the mouth and neck portion connected to the body portion, a ring-shaped aluminum member (the inner surface of which is coated with plastic) according to the inclination of the shoulder portion is formed as shown in FIG. It is generally inserted in. In addition, a push-out container in which a thin-walled member formed in advance in plastic according to the shape of the head part is inserted is disclosed in US Pat. No. 3,565.
No. 293 and JP-A-58-124623. The former proposes the use of urea formaldehyde thermosetting resin, and the latter proposes the use of polyethylene terephthalate resin (PET) or polybutylene terephthalate resin (PBT). It is known that polyacrylonitrile copolymer is effective in permeation of contents components, prevention of adsorption, etc., and also has an oxygen gas barrier property. A laminated tube container used for the outer layer has been proposed.
【０００３】[0003]
【発明が解決しようとする課題】従来のリング状アルミ
部材を使用する場合は口頚部までの加工が難しく肩部だ
けで終わっており、口頚部までバリアー性を付与させる
ことが出来ないという問題がある。たとえヘッド部全体
に挿入できるアルミ部材を使用してもコスト高となる。
また最大の問題はアルミ部材の端面がプラスチックで完
全に覆われず、少しでも隙間があると内容物によっては
アルミ部材を侵し、その部分からバリアー効果が失われ
ることである。このためアルミ部材の端面が図２のよう
にプラスチックの中に入り込むような加工がされている
がそれでも端面をプラスチックで完全に覆うのは成形技
術上難しい問題が残されている。一方、ヘッド形状に合
わせたプラスチック薄肉部材を使用する方法であるが、
ユリアホルムアルデヒド熱硬化性樹脂では水分によって
膨潤を起こし内容物の洩れにつながるという問題があ
る。また脆くて扱い難いという問題もある。ポリエチレ
ンテレフタレート樹脂あるいはポリブチレンテレフタレ
ート樹脂を使用する場合は耐酸素透過性、耐水蒸気透過
性において満足しうるレベルにないため内容物が制限さ
れるという問題がある。そこで、本発明は、上記の問題
を克服し、水蒸気、酸素バリアー性、さらに特殊な薬効
成分、芳香成分、高揮発成等に対する優れたバリアー性
を有する内容物の保存機能に優れた積層チューブ容器の
提供を目的とする。When the conventional ring-shaped aluminum member is used, it is difficult to process up to the mouth and neck, and only the shoulder portion is left, so that there is a problem that the barrier property cannot be imparted to the mouth and neck. is there. Even if an aluminum member that can be inserted into the entire head portion is used, the cost will be high.
Also, the biggest problem is that the end surface of the aluminum member is not completely covered with plastic, and if there is a gap, the aluminum member will be attacked depending on the contents, and the barrier effect will be lost from that part. For this reason, the end surface of the aluminum member is processed so as to enter the plastic as shown in FIG. 2, but it is still difficult to completely cover the end surface with the plastic in terms of molding technology. On the other hand, it is a method of using a plastic thin member that matches the head shape,
The urea-formaldehyde thermosetting resin has a problem that it causes swelling due to moisture, which leads to leakage of contents. There is also the problem of being brittle and difficult to handle. When a polyethylene terephthalate resin or a polybutylene terephthalate resin is used, there is a problem that the content is limited because the oxygen permeation resistance and the water vapor permeation resistance are not at a satisfactory level. Therefore, the present invention overcomes the above problems and has a laminated tube container having an excellent storage function for contents, which has excellent barrier properties against water vapor, oxygen barrier properties, special medicinal components, aromatic components, high volatility, etc. For the purpose of providing.
【０００４】[0004]
【課題を解決するための手段】前記課題を解決するため
になされた本発明は積層材を使用した筒状胴部に肩部と
口頚部からなるヘッド部を接続した積層チューブ容器に
おいて、前記ヘッド部の内層が環状オレフィンコポリマ
ーで、外層がポリアクリロニトリルコポリマーで形成さ
れ、前記筒状胴部の少なくとも最内層及び最外層がポリ
アクリロニトリルコポリマーで形成されていることを特
徴とする積層チューブ容器を要旨とする。DISCLOSURE OF THE INVENTION The present invention, which has been made to solve the above-mentioned problems, is a laminated tube container in which a head portion composed of a shoulder portion and a mouth / neck portion is connected to a cylindrical body portion using a laminated material. The inner layer of the part is a cyclic olefin copolymer, the outer layer is formed of a polyacrylonitrile copolymer, at least the innermost layer and the outermost layer of the tubular body is formed of a polyacrylonitrile copolymer, a laminated tube container characterized by To do.
【０００５】[0005]
【作用】本発明による積層チューブ容器は、ヘッド部が
環状オレフィンコポリマーとポリアクリロニトリルコポ
リマーの２層構造であり、筒状胴部の少なくとも最内層
と最外層にポリアクリロニトリルコポリマーを使用した
ことによって、極めて良好な水蒸気および酸素バリアー
性、さらに特殊な薬効成分、芳香成分、高揮発成等に対
しても優れたバリアー性を付与させることができる。In the laminated tube container according to the present invention, the head portion has a two-layer structure of a cyclic olefin copolymer and a polyacrylonitrile copolymer, and by using the polyacrylonitrile copolymer in at least the innermost layer and the outermost layer of the tubular body, Good water vapor and oxygen barrier properties as well as excellent barrier properties against special medicinal components, aromatic components, high volatility, etc. can be imparted.
【０００６】[0006]
【実施例】本発明を図面を用いて、更に詳しく説明す
る。図１は本発明による積層チューブ容器２０のヘッド
部１０の断面図、図２は従来の積層チューブ容器３０の
一例の断面図、図３は本発明のヘッド部挿入部材２の平
面図と側面図を示す。従来のヘッド部までバリアー性を
持たせた積層チューブ容器３０は図２に示すように、ポ
リオレフィン系樹脂によるヘッド部成形時にリング状ア
ルミ部材１２が肩部６においてヘッド部外層材１３と一
体化されている。またその端面はポリオレフィン系樹脂
の中に入り込むような構造となっている。The present invention will be described in more detail with reference to the drawings. 1 is a sectional view of a head portion 10 of a laminated tube container 20 according to the present invention, FIG. 2 is a sectional view of an example of a conventional laminated tube container 30, and FIG. 3 is a plan view and a side view of a head portion insertion member 2 of the present invention. Indicates. As shown in FIG. 2, a conventional laminated tube container 30 having a barrier property up to the head portion is formed such that the ring-shaped aluminum member 12 is integrated with the head portion outer layer material 13 at the shoulder portion 6 when the head portion is molded with a polyolefin resin. ing. In addition, the end surface has a structure that penetrates into the polyolefin resin.
【０００７】本発明は図１に示すように、積層材１から
なる筒状胴部５の先端に２層構造となるように肩部６と
口頚部７からなるヘッド部１０を後述する方法で胴部５
に接合部４で接合したものであって、ヘッド部１０の外
層３はポリアクリロニトリルコポリマー（以下ＰＡＮと
称する。）、内層２は環状オレフィンコポリマーCycloo
lefine Copolymar（以下ＣＯＣと称する。）によって構
成されている。ヘッド部１０の内層２は射出成形であら
かじめ成形された図３に示すロート状の部材によって形
成される。そしてその上を全面に覆うようにＰＡＮが外
層３を形成するように設けられている。また胴部５の積
層材１の内外層にはＰＡＮが使用されている。従って図
１に示すように、接合部４においてはヘッド部１０外層
３のＰＡＮと胴部層面のＰＡＮ同士で熱融着されてい
る。一方ヘッド部１０の内層２と外層３間は緩く接着し
ているが、口頚部７においては成形時の外層３の熱収縮
によって強固に物理的に嵌合されている。According to the present invention, as shown in FIG. 1, a cylindrical body 5 made of laminated material 1 is provided with a head portion 10 having a shoulder portion 6 and a mouth / neck portion 7 so as to have a two-layer structure at a tip thereof by a method described later. Body 5
The outer layer 3 of the head 10 is a polyacrylonitrile copolymer (hereinafter referred to as PAN), and the inner layer 2 is a cyclic olefin copolymer Cycloo.
It is composed of lefine Copolymar (hereinafter referred to as COC). The inner layer 2 of the head portion 10 is formed by the funnel-shaped member shown in FIG. The PAN is provided so as to form the outer layer 3 so as to cover the entire surface thereof. PAN is used for the inner and outer layers of the laminated material 1 of the body portion 5. Therefore, as shown in FIG. 1, in the joint portion 4, the PAN of the outer layer 3 of the head portion 10 and the PAN of the surface layer of the body portion are heat-sealed to each other. On the other hand, the inner layer 2 and the outer layer 3 of the head portion 10 are loosely adhered to each other, but in the mouth / neck portion 7, the outer layer 3 is firmly physically fitted by heat shrinkage during molding.
【０００８】本発明において使用するＣＯＣは、高いガ
ラス転移温度を有する非晶性樹脂で耐水蒸気透過性、耐
薬品性、加工性、寸法安定性等に優れた特徴を有する剛
性の高い樹脂である。本発明において使用するＰＡＮ
は、ガスバリアー性が高く、耐薬品性があり、保香性が
良くメントール、リモネン、カンフル等の精油に対して
侵されず、高揮発成分の吸着透過が少ない等の優れた物
性を示す。本発明には、アクリロニトリル、メチルアク
リレート、ニトリルブタジエンの３元共重合物である三
井東圧化学（株）のＢａｒｅｘ１０００ＢＴを使用して
いる。従って本発明のポイントはこの両者の物性と胴部
５におけるアルミ箔の物性を最大限に利用しているとこ
ろにある。The COC used in the present invention is an amorphous resin having a high glass transition temperature and a highly rigid resin having excellent characteristics such as water vapor permeation resistance, chemical resistance, workability and dimensional stability. . PAN used in the present invention
Has high gas barrier properties, chemical resistance, good aroma retention, is not attacked by essential oils such as menthol, limonene, camphor, etc., and exhibits excellent physical properties such as low adsorption and permeation of highly volatile components. Barex 1000BT manufactured by Mitsui Toatsu Chemicals, Inc., which is a terpolymer of acrylonitrile, methyl acrylate and nitrile butadiene, is used in the present invention. Therefore, the point of the present invention is to make the most of the physical properties of both of them and the physical properties of the aluminum foil in the body portion 5.
【０００９】次に、本発明による積層チューブの製造方
法について説明する。内外層にＰＡＮを使用し中間層に
アルミ箔を有する積層材を用いて、先ず筒状胴部５を成
形する。すなわち、矩形状にカットした前記積層材のカ
ット片を、筒状になるように巻き込み、その長手方向の
両側端部同士をヒートシールで封筒貼りして筒状胴部を
形成する。この場合、別途用意してあるＰＡＮによるテ
ープを、チューブ内面の接合部を覆うように、同時にヒ
ートシールし、積層材の端面、特にアルミ箔が内容物に
触れないようにする。一方において、図３に示すような
ロート型の挿入部材２をインジェクション成形でＣＯＣ
を用いて作成しておく。次に、同じくインジェクション
成形機を用いて、ヘッド部１０の成形を行う。インジェ
クション成形金型のコアーはマンドレルの先端に形成さ
れていて、所定の長さにカットされた筒状胴部５をこの
マンドレルに差し込み、さらにその先端部の金型コアー
に前記ＣＯＣによる挿入部材を嵌め込んでから形締め
し、挿入部材とキャビティの間にＰＡＮを一定量射出す
る。ＰＡＮは前記積層材１とＣＯＣ挿入部材２間にも流
れ込み、両者と熱融着して一体化してヘッド１０を形成
する。その結果は図１によって示されている。ヘッド成
形後、別途用意したＰＡＮとＣＯＣの２層フィルム等で
口頚部７の開口部８をヒートシールする。最後にあらか
じめ成形されているキャップを頭部に勘合させる。キャ
ップの樹脂は任意に選択してよい。本発明ではヘッド部
１０には従来のリング状アルミ部材１２の使用がないの
でアルミ端面が内容物によって侵される心配はない。ま
た胴部のアルミ箔端面は積層チューブ容器の外側にのみ
出ているので内容物との接触による問題は起きない。Next, a method of manufacturing the laminated tube according to the present invention will be described. First, the tubular body portion 5 is formed by using PAN as the inner and outer layers and the laminated material having the aluminum foil as the intermediate layer. That is, a cut piece of the laminated material cut into a rectangular shape is wound into a tubular shape, and both end portions in the longitudinal direction thereof are heat-sealed with an envelope to form a tubular body portion. In this case, a separately prepared tape made of PAN is heat-sealed at the same time so as to cover the joint portion on the inner surface of the tube so that the end surface of the laminated material, particularly the aluminum foil, does not touch the contents. On the other hand, the funnel type insertion member 2 as shown in FIG. 3 is subjected to COC by injection molding.
Create using. Next, the head unit 10 is molded using the same injection molding machine. The core of the injection molding die is formed at the tip of the mandrel, the tubular body portion 5 cut to a predetermined length is inserted into this mandrel, and the COC insertion member is further attached to the die core of the tip portion. After fitting, it is clamped and a certain amount of PAN is injected between the insertion member and the cavity. The PAN also flows into the space between the laminated material 1 and the COC insertion member 2, and is thermally fused and integrated with both to form the head 10. The result is shown by FIG. After the head is molded, the opening 8 of the mouth / neck 7 is heat-sealed with a separately prepared two-layer film of PAN and COC or the like. Finally, the preformed cap is fitted to the head. The resin of the cap may be arbitrarily selected. In the present invention, since the conventional ring-shaped aluminum member 12 is not used in the head portion 10, there is no concern that the aluminum end surface will be attacked by the contents. Further, since the aluminum foil end surface of the body portion is exposed only on the outer side of the laminated tube container, there is no problem due to contact with the contents.
【００１０】[0010]
【発明の効果】本発明の積層チューブ容器によれば、ヘ
ッド部が環状オレフィンコポリマーとポリアクリロニト
リルコポリマーの２層構造であり、筒状胴部の少なくと
も最内層、最外層にポリアクリロニトリルコポリマーを
使用したことによって、極めて良好な酸素バリアー性と
水蒸気バリアー性を付与させることができ、これまでの
積層チューブ容器には充填できなかった特殊な硬化成分
を含む接着剤、特殊な薬効成分、芳香成分、高揮発成分
等を含む医薬品、化粧品等のペースト状製品に利用する
ことができる。さらに製造方法も安定化し、製造ロスを
少なくし、経済コストで積層チューブ容器の提供を可能
とする。According to the laminated tube container of the present invention, the head portion has a two-layer structure of a cyclic olefin copolymer and a polyacrylonitrile copolymer, and the polyacrylonitrile copolymer is used for at least the innermost layer and the outermost layer of the tubular body. This makes it possible to impart extremely good oxygen barrier properties and water vapor barrier properties, and adhesives containing special curing components, special medicinal components, aromatic components, high It can be used for pasty products such as pharmaceuticals and cosmetics containing volatile components. Further, the manufacturing method can be stabilized, the manufacturing loss can be reduced, and the laminated tube container can be provided at an economical cost.
【図１】本発明による積層チューブ容器のヘッド部の断
面図FIG. 1 is a sectional view of a head portion of a laminated tube container according to the present invention.
【図２】従来の積層チューブ容器の一例の断面図FIG. 2 is a sectional view of an example of a conventional laminated tube container.
【図３】本発明による積層チューブ容器のヘッド部挿入
部材の平面図及び側面図FIG. 3 is a plan view and a side view of a head portion insertion member of a laminated tube container according to the present invention.
１ 積層材 ２ ヘッド部挿入部材，ヘッド部内層 ３ ヘッド部外層 ４ 接合部 ５ 胴部 ６ 肩部 ７ 口頚部 ８ 開口部 １０ ヘッド部 １１ 従来の積層チューブ容器の胴部積層材 １２ 従来のリング状アルミ部材 １３ 従来のヘッド部材 ２０ 本発明による積層チューブ容器 ３０ 従来の積層チューブ容器 DESCRIPTION OF SYMBOLS 1 Laminated material 2 Head insertion member, head inner layer 3 Head outer layer 4 Joining part 5 Body part 6 Shoulder part 7 Mouth neck part 8 Opening part 10 Head part 11 Conventional laminated tube container body part laminated material 12 Conventional ring shape Aluminum member 13 Conventional head member 20 Laminated tube container according to the present invention 30 Conventional laminated tube container
Claims (2)
部からなるヘッド部を接続した積層チューブ容器におい
て、前記ヘッド部の内層が環状オレフィンコポリマー
で、外層がポリアクリロニトリルコポリマーで形成され
ていることを特徴とする積層チューブ容器。1. A laminated tube container in which a head including a shoulder and a mouth and neck is connected to a tubular body using a laminated material, wherein the inner portion of the head portion is a cyclic olefin copolymer and the outer layer is a polyacrylonitrile copolymer. A laminated tube container characterized in that
外層がポリアクリロニトリルコポリマーで形成されてい
ることを特徴とする請求項１記載の積層チューブ容器。2. The laminated tube container according to claim 1, wherein at least the innermost layer and the outermost layer of the tubular body are formed of a polyacrylonitrile copolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4366295A JP3756214B2 (en) | 1995-02-09 | 1995-02-09 | Laminated tube container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4366295A JP3756214B2 (en) | 1995-02-09 | 1995-02-09 | Laminated tube container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08217100A true JPH08217100A (en) | 1996-08-27 |
| JP3756214B2 JP3756214B2 (en) | 2006-03-15 |
Family
ID=12670073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4366295A Expired - Fee Related JP3756214B2 (en) | 1995-02-09 | 1995-02-09 | Laminated tube container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3756214B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH115721A (en) * | 1997-06-13 | 1999-01-12 | Toyo Seikan Kaisha Ltd | Multilayer tube vessel for dentifrice, package and production of package |
| JPH11187797A (en) * | 1997-12-26 | 1999-07-13 | Hakugen:Kk | Insect repellent |
| EP1500491A1 (en) * | 2003-07-23 | 2005-01-26 | Nobel Plastiques | Laminated pipe comprising a cycloolefin-based inner layer |
| DE102005011770A1 (en) * | 2005-03-11 | 2006-09-14 | Georg Menshen Gmbh & Co. Kg | Kunststoffausgiesser-welding part |
-
1995
- 1995-02-09 JP JP4366295A patent/JP3756214B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH115721A (en) * | 1997-06-13 | 1999-01-12 | Toyo Seikan Kaisha Ltd | Multilayer tube vessel for dentifrice, package and production of package |
| JPH11187797A (en) * | 1997-12-26 | 1999-07-13 | Hakugen:Kk | Insect repellent |
| EP1500491A1 (en) * | 2003-07-23 | 2005-01-26 | Nobel Plastiques | Laminated pipe comprising a cycloolefin-based inner layer |
| FR2858037A1 (en) * | 2003-07-23 | 2005-01-28 | Nobel Plastiques | MULTILAYER DRIVE HAVING INTERNAL LAYER HAVING CYCLO-OLEFIN |
| DE102005011770A1 (en) * | 2005-03-11 | 2006-09-14 | Georg Menshen Gmbh & Co. Kg | Kunststoffausgiesser-welding part |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3756214B2 (en) | 2006-03-15 |
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