JPH07232347A - Multilayered container - Google Patents
Multilayered containerInfo
- Publication number
- JPH07232347A JPH07232347A JP6026761A JP2676194A JPH07232347A JP H07232347 A JPH07232347 A JP H07232347A JP 6026761 A JP6026761 A JP 6026761A JP 2676194 A JP2676194 A JP 2676194A JP H07232347 A JPH07232347 A JP H07232347A
- Authority
- JP
- Japan
- Prior art keywords
- container
- layer
- gas barrier
- resin
- surface layer
- 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
Links
- 239000010410 layer Substances 0.000 claims abstract description 37
- 239000002344 surface layer Substances 0.000 claims abstract description 14
- 230000004888 barrier function Effects 0.000 claims abstract description 12
- 229920005990 polystyrene resin Polymers 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 10
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 5
- 239000000057 synthetic resin Substances 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 abstract description 7
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract description 4
- 229910001882 dioxygen Inorganic materials 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 235000013365 dairy product Nutrition 0.000 description 10
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 3
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 235000015140 cultured milk Nutrition 0.000 description 3
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 235000014655 lactic acid Nutrition 0.000 description 3
- 239000004310 lactic acid Substances 0.000 description 3
- 235000020124 milk-based beverage Nutrition 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 101000657326 Homo sapiens Protein TANC2 Proteins 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 102100034784 Protein TANC2 Human genes 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、プラスチック製の多層
射出容器で、特に、はつ酵乳、乳酸菌食品及び乳飲料の
乳製品を収納するのに好適な多層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 plastic multi-layer container, and more particularly to a multi-layer container suitable for storing fermented milk, lactic acid bacteria foods and dairy products such as milk drinks.
【０００２】[0002]
【従来の技術】従来より乳製品を収納する容器として
は、乳及び乳製品の成分規格等に関する省令（厚生省令
第５２号。以下「乳等省令」という。）により、ガラス
瓶あるいは内容物に直接接触する部分はポリエチレン又
はポリスチレンであることが定められている。乳製品を
収納する容器に於いては、外観上のデザインや持ち易さ
という観点から脚付き形状が望まれ、これまでもプラス
チックはその便利性、価格やデザインの点から乳製品容
器として用いられている。しかしながら、ポリスチレン
等の合成樹脂を単体で容器として使用した場合、酸素ガ
スバリア性や内容物適性の観点からは、不十分なもので
しかないという問題があった。2. Description of the Related Art Conventionally, containers for storing dairy products have been directly placed in a glass bottle or the contents thereof in accordance with a ministerial ordinance regarding the standards of components of milk and dairy products (Ministry of Health and Welfare Ordinance No. 52, hereinafter referred to as "Ministerial Ordinance for Milk, etc."). It is defined that the contacting parts are polyethylene or polystyrene. For containers that store dairy products, legged shapes are desirable from the viewpoint of external design and ease of holding, and plastics have been used as dairy product containers for their convenience, price, and design. ing. However, when a synthetic resin such as polystyrene is used alone as a container, there is a problem that it is insufficient in terms of oxygen gas barrier properties and suitability for contents.
【０００３】[0003]
【発明が解決しようとする課題】本発明は以上のような
問題点に着目してなされたもので、乳製品を内容物とし
て収納する容器として、表面層がポリスチレン樹脂で構
成され、酸素ガスバリア性を有する多層容器、さらに、
該容器本体下方に脚部を有することを特徴とする多層容
器を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems. As a container for storing a dairy product as a content, the surface layer is made of polystyrene resin and has an oxygen gas barrier property. A multi-layer container having
It is an object of the present invention to provide a multi-layer container having a leg portion below the container body.
【０００４】[0004]
【課題を解決するための手段】本発明は、上記課題を解
決するために、内容物を収納するカップ形状で、ガスバ
リア性樹脂層を含む少なくとも合成樹脂が３層以上で構
成され、表面層がポリスチレン樹脂からなる多層容器で
ある。また、前記容器本体の下方に脚部を有する多層容
器である。In order to solve the above-mentioned problems, the present invention has a cup shape for containing contents and is composed of at least three synthetic resins including a gas barrier resin layer, and the surface layer is A multi-layer container made of polystyrene resin. In addition, it is a multi-layer container having leg portions below the container body.
【０００５】以下、本発明を図面に基づき詳細に説明す
る。図１は、本発明による多層容器の一実施例を示す断
面図である。ここで、容器本体１０は、中心層としてエ
チレン酢酸ビニル共重合体ケン化物（以下ＥＶＯＨと称
す）、ポリ塩化ビニリデンやポリアミド樹脂などのガス
バリア性樹脂層３、また、最内外層は乳製品である内容
物に直接接することが可能であるポリスチレン樹脂から
なる表面層１。そして、前記ガスバリア性樹脂層３と表
面層１を接着するための接着剤層２よりなる３種５層の
層構成を有しており、容器本体１０の下方には脚部１１
備えている。The present invention will be described in detail below with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of the multi-layer container according to the present invention. Here, in the container body 10, a saponified ethylene vinyl acetate copolymer (hereinafter referred to as EVOH), a gas barrier resin layer 3 such as polyvinylidene chloride or a polyamide resin is used as a central layer, and the innermost and outermost layers are dairy products. A surface layer 1 made of polystyrene resin capable of directly contacting the contents. Further, it has a layer structure of 5 layers of 3 types consisting of an adhesive layer 2 for adhering the gas barrier resin layer 3 and the surface layer 1, and a leg portion 11 is provided below the container body 10.
I have it.
【０００６】接着剤層２に用いられるのは、エチレン酢
酸ビニル共重合体をベースとしたものやエチレン、エチ
ルアクリレート、無水マレイン酸の共重合体からなる接
着性樹脂などが用いられる。For the adhesive layer 2, an ethylene-vinyl acetate copolymer-based adhesive, an adhesive resin made of a copolymer of ethylene, ethyl acrylate, and maleic anhydride is used.
【０００７】そして、その製造方法は合成樹脂の層が３
層で有ればサンドイッチ成形法、同時射出成形法といっ
た公知の多層射出成形方法で可能であり、上記した３種
５層の構成とするならば特開平０３−２３９５１８号、
特願平０３−６６８８０号等による多層射出成形方法に
より製造可能である。And, the manufacturing method is such that the synthetic resin layer is three layers.
If it is a layer, it can be carried out by a known multi-layer injection molding method such as a sandwich molding method or a simultaneous injection molding method. If the above-mentioned structure of 5 layers of 3 types is used, JP-A 03-239518,
It can be manufactured by the multilayer injection molding method according to Japanese Patent Application No. 03-66880.
【０００８】[0008]
【作用】本発明の多層容器は、表面層がポリスチレン樹
脂により形成されているため、はつ酵乳、乳酸菌食品及
び乳飲料の乳製品を収納する容器として好適であり、ガ
スバリア性樹脂層を中間層として備えるので酸素ガスバ
リア性が高く、内容物の保存期間を長くすることができ
る。また、容器本体下方に脚部を設けることにより、収
納する内容物が乳製品の場合にデザイン上から嗜好され
る脚付きで持ち易いという内容物適性と外観上にも従来
から望まれていた多層容器の提供を可能とする。The multi-layer container of the present invention is suitable as a container for storing fermented milk, lactic acid bacteria foods and dairy products such as milk drinks because the surface layer is formed of polystyrene resin, and the gas barrier resin layer is the intermediate layer. As a result, the oxygen gas barrier property is high, and the storage period of the contents can be extended. In addition, by providing the leg portion below the container body, when the content to be stored is a dairy product, it is easy to hold with a leg that is preferred from the design viewpoint. Enables provision of containers.
【０００９】[0009]
【実施例】本発明の具体的実施例として、図１に示す表
裏対象５層構造の脚付き容器を成形した。すなわち、表
面層としてメルトインデックス２１のポリスチレン樹
脂、中間層にＥＶＯＨ樹脂、表面層とＥＶＯＨ層との接
着剤層としてエチレン−酢酸ビニル共重合体ベースの樹
脂を使用し、いずれの樹脂も樹脂温度２４０度、金型温
度は５０度で成形した。得られた容器は肉厚が０．８ｍ
ｍで各層の平均肉厚は、外側の表面層が２００μｍ、内
側の表面層が１９０μｍ、接着剤層がそれぞれ１８０μ
ｍ、そして中間層の厚さが５０μｍであった。この多層
容器をアルミニウム製蓋材で密封し、酸素透過度を測定
したところ０．００９ｃｃ／ｐａｃｋ・ｄａｙであっ
た。なお酸素透過度の測定には、ＭＯＤＥＮ ＣＯＮＴ
ＲＯＬＳ ＩＮＣ．製ＭＯＣＯＮ ＯＸＴＲＡＮ ＴＷ
ＩＮを使用した。EXAMPLE As a specific example of the present invention, a legged container having a five-layer structure as shown in FIG. 1 was molded. That is, a polystyrene resin having a melt index of 21 was used as the surface layer, an EVOH resin was used as the intermediate layer, and an ethylene-vinyl acetate copolymer-based resin was used as the adhesive layer between the surface layer and the EVOH layer. And the mold temperature was 50 degrees. The obtained container has a wall thickness of 0.8 m.
The average thickness of each layer is 200 μm for the outer surface layer, 190 μm for the inner surface layer, and 180 μm for the adhesive layer.
m, and the thickness of the intermediate layer was 50 μm. The multilayer container was sealed with an aluminum lid and the oxygen permeability was measured and found to be 0.009 cc / pack · day. For measuring the oxygen permeability, use MODEN CONT
ROLS INC. Made by MOCON OXTRAN TW
IN was used.
【００１０】比較のため、ポリスチレン樹脂のみを使用
して同一の容器を成形し、同様の方法で酸素透過度を測
定しところ、０．８ｃｃ／ｐａｃｋ・ｄａｙであった。For comparison, the same container was molded using only polystyrene resin, and the oxygen permeability was measured by the same method, and it was 0.8 cc / pack · day.
【００１１】図２はその他の実施例を示す説明図で、脚
部を容器本体と一体で設けるのではなく、容器本体の下
方に脚部を別工程で具備させても良い。FIG. 2 is an explanatory view showing another embodiment. Instead of providing the leg portion integrally with the container body, the leg portion may be provided below the container body in a separate step.
【００１２】[0012]
【発明の効果】本発明の多層容器によれば、容器表面層
にポリスチレン樹脂を用いることにより、はつ酵乳、乳
酸菌食品及び乳飲料の乳製品を収納する容器として好適
でありガスバリヤー性樹脂層を持つため保存期間か長く
なるなど内容物適性にも優れており、脚付きの構成とす
ることで、外観上、あるいは持ち易いというより消費者
の嗜好にあう多層容器を提供する事ができる。EFFECTS OF THE INVENTION According to the multi-layer container of the present invention, by using a polystyrene resin for the surface layer of the container, it is suitable as a container for storing fermented milk, lactic acid bacteria food and dairy products such as milk drinks, and a gas barrier resin layer. Since it has a long storage period, it is excellent in suitability for contents, and by adopting a structure with legs, it is possible to provide a multi-layered container which is more suitable for consumers' taste than appearance or easy holding.
【００１３】[0013]
【図１】本発明の多層容器の一実施例を示す説明図であ
る。FIG. 1 is an explanatory view showing an example of a multilayer container of the present invention.
【図２】本発明の多層容器のその他の実施例を示す説明
図である。FIG. 2 is an explanatory view showing another embodiment of the multilayer container of the present invention.
１…表面層 ２…接着剤層 ３…ガスバリヤー性樹脂層
（中間層） １０…容器本体 １１…脚部DESCRIPTION OF SYMBOLS 1 ... Surface layer 2 ... Adhesive layer 3 ... Gas barrier resin layer (intermediate layer) 10 ... Container body 11 ... Legs
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｌ 9:00 22:00 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location B29L 9:00 22:00
Claims (2)
ア性樹脂層を含む少なくとも合成樹脂が３層以上で構成
され、表面層がポリスチレン樹脂からなることを特徴と
する多層容器。1. A multi-layer container having a cup shape for containing contents, comprising at least three synthetic resins including a gas barrier resin layer and having a surface layer made of polystyrene resin.
の下方に脚部を有することを特徴とする請求項１記載の
多層容器。2. The multi-layer container according to claim 1, wherein the multi-layer container has leg portions below a container body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6026761A JPH07232347A (en) | 1994-02-24 | 1994-02-24 | Multilayered container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6026761A JPH07232347A (en) | 1994-02-24 | 1994-02-24 | Multilayered container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07232347A true JPH07232347A (en) | 1995-09-05 |
Family
ID=12202277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6026761A Pending JPH07232347A (en) | 1994-02-24 | 1994-02-24 | Multilayered container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07232347A (en) |
-
1994
- 1994-02-24 JP JP6026761A patent/JPH07232347A/en active Pending
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