JPH0410042Y2 - - Google Patents
Info
- Publication number
- JPH0410042Y2 JPH0410042Y2 JP15372285U JP15372285U JPH0410042Y2 JP H0410042 Y2 JPH0410042 Y2 JP H0410042Y2 JP 15372285 U JP15372285 U JP 15372285U JP 15372285 U JP15372285 U JP 15372285U JP H0410042 Y2 JPH0410042 Y2 JP H0410042Y2
- Authority
- JP
- Japan
- Prior art keywords
- vinyl chloride
- eva
- layer
- resin
- copolymer resin
- 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
Links
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 25
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 23
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 23
- 229920005989 resin Polymers 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 239000004744 fabric Substances 0.000 claims description 13
- 229920000578 graft copolymer Polymers 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 229920006026 co-polymeric resin Polymers 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- IDCBOTIENDVCBQ-UHFFFAOYSA-N TEPP Chemical compound CCOP(=O)(OCC)OP(=O)(OCC)OCC IDCBOTIENDVCBQ-UHFFFAOYSA-N 0.000 description 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Bag Frames (AREA)
- Laminated Bodies (AREA)
Description
【考案の詳細な説明】
［考案の利用分野及び従来の技術］
本考案は多層フレキシブルコンテナー用シート
に関する。現在フレキシブルコンテナー用に使用
されている材料として合成ゴム、軟質塩化ビニ
ル、エチレン酢酸ビニル共重合樹脂（以下EVA
と称す）等が使用されている。これ等の内、合成
ゴム製のものは耐熱性、耐寒性に優れるが着色性
が悪く臭気があり、又加工性が悪い等の欠点によ
り利用分野は限られている。一方軟質塩化ビニル
及びEVA製のものは加工性に優れている事から
多く使用されており、特に軟質塩化ビニル製は耐
摩耗性、耐キズ性等耐久性に優れ主流を成してい
る。しかしながらこれらは比重が大きく耐寒性が
悪く又場合により可塑剤の移行等の問題がある。[Detailed Description of the Invention] [Field of Application of the Invention and Prior Art] The present invention relates to a multilayer flexible container sheet. Materials currently used for flexible containers include synthetic rubber, soft vinyl chloride, and ethylene vinyl acetate copolymer resin (EVA).
) etc. are used. Among these, those made of synthetic rubber have excellent heat resistance and cold resistance, but their field of use is limited due to drawbacks such as poor colorability, odor, and poor processability. On the other hand, those made of soft vinyl chloride and EVA are often used due to their excellent workability, and in particular, soft vinyl chloride is the mainstream due to its excellent durability such as wear resistance and scratch resistance. However, these have a high specific gravity, poor cold resistance, and sometimes have problems such as migration of plasticizer.
EVAは無毒性でかつ可塑剤を使用しなくても
柔軟性があり、耐寒性に優れ又比重が小さい等の
特徴がある反面、表面にキズが付き易く摩耗性が
悪い等の欠点を有し、軟質塩化ビニルに比較して
耐久性が劣つている。 EVA is non-toxic, flexible without the use of plasticizers, has excellent cold resistance, and has a low specific gravity, but on the other hand, it has drawbacks such as the surface being easily scratched and having poor abrasion resistance. , its durability is inferior to that of soft vinyl chloride.
［考案の目的及び構成］
本考案の目的はこれ等素材の持つ短所を補い長
所をいかした複層樹脂から成るフレキシブルコン
テナーの提供にある。即ち、フレキシブルコンテ
ナーの外層を耐久性の良い軟質塩化ビニル層とし
て、内容物と直接接触する内層をEVA層とする
事にあり、特に、飲食関係、薬品関係の物品を運
搬する事を目的としたフレキシブルコンテナーと
して有用である。[Purpose and Structure of the Invention] The purpose of the invention is to provide a flexible container made of multilayer resin that compensates for the disadvantages of these materials and takes advantage of their advantages. In other words, the outer layer of the flexible container is a durable soft vinyl chloride layer, and the inner layer that comes into direct contact with the contents is an EVA layer.It is especially designed for transporting food, drink, and pharmaceutical products. Useful as a flexible container.
しかし、EVAと軟質塩化ビニルは全く異質な
ポリマー同志であるため積層化が極めて困難であ
る。 However, since EVA and soft vinyl chloride are completely different polymers, it is extremely difficult to laminate them together.
本考案者等はEVAと軟質塩化ビニルの積層方
法について鋭意検討した結果、EVAと軟質塩化
ビニルの両者に相溶性のあるEVAと塩化ビニル
とのグラフト共重合樹脂層を前記EVAと軟質塩
化ビニル層の層間に介在させ、かつ同層間にプラ
スチツク繊維及び／又は天然繊維からなる基布を
介してこれ等を積層させた積層体でコンテナーを
構成する事により、強固でかつ柔軟性に富んだコ
ンテナーを得る事を見出し本考案の完成に至つ
た。 As a result of intensive study on the method of laminating EVA and soft vinyl chloride, the inventors of the present invention created a graft copolymer resin layer of EVA and vinyl chloride, which is compatible with both EVA and soft vinyl chloride. By constructing a container with a laminate in which these are interposed between layers and laminated with a base fabric made of plastic fibers and/or natural fibers between the same layers, a strong and flexible container can be created. After discovering what could be achieved, the present invention was completed.
本考案の多層フレキシブルコンテナーを構成す
る積層体（原反）は通常、カレンダー成形機又は
押出しラミネーターにより積層化できる。例え
ば、あらかじめカレンダー成型機等により成型し
たEVA及び軟質塩化ビニル樹脂のフイルム又は
シートを、溶融したフイルム又はシート状の
EVAと塩化ビニルとのグラフト共重合樹脂及び
基布を介して積層化するいわゆる押出しラミネー
シヨン法により得られる。 The laminate (original fabric) constituting the multilayer flexible container of the present invention can usually be laminated using a calendar molding machine or an extrusion laminator. For example, a film or sheet of EVA and soft vinyl chloride resin, which has been molded in advance using a calendar molding machine, is melted into a film or sheet.
It is obtained by a so-called extrusion lamination method in which lamination is performed via a graft copolymer resin of EVA and vinyl chloride and a base fabric.
又、タンデム型カレンダー成型機により、まず
基布を介してEVAと、EVAと塩化ビニルとのグ
ラフト共重合樹脂との積層シートを作成後、この
シートのグラフト共重合樹脂面にカレンダー成型
機又は押出しラミネーターを用いて軟質塩化ビニ
ル樹脂層を積層する事も可能である。尚、基布の
積層場所は塩化ビニル、EVA間であればいずれ
の場所でもよい。又、積層体の厚さはコンテナー
の大きさにより適宜決める事ができるが通常0.5
〜1.5m／ｍである。 In addition, a tandem calender molding machine is used to first create a laminated sheet of EVA and a graft copolymer resin of EVA and vinyl chloride through a base fabric, and then a calender molding machine or extrusion is applied to the graft copolymer resin side of this sheet. It is also possible to laminate soft vinyl chloride resin layers using a laminator. The base fabric may be laminated anywhere between vinyl chloride and EVA. Also, the thickness of the laminate can be determined appropriately depending on the size of the container, but it is usually 0.5
~1.5m/m.
本考案に使用されるEVAはMFR １〜６ｇ／
1.0分、酢酸ビニル含量15〜30wt％の範囲のもの
が好適である。 The EVA used in this invention has an MFR of 1 to 6 g/
1.0 minutes and a vinyl acetate content in the range of 15 to 30 wt% are preferred.
EVAと塩化ビニルとのグラフト共重合樹脂は
例えば酢酸ビニル含量が15wt％以上のEVA 100
重量部を塩化ビニルを主体とするモノマー混合物
に溶解又は膨潤させ水性媒体中で塩化ビニルを主
体とするモノマー混合物を10〜70重量部グラフト
共重合させる事により得られる。 A graft copolymer resin of EVA and vinyl chloride is, for example, EVA 100 with a vinyl acetate content of 15wt% or more.
It can be obtained by dissolving or swelling part by weight in a monomer mixture mainly consisting of vinyl chloride and graft copolymerizing 10 to 70 parts by weight of the monomer mixture mainly consisting of vinyl chloride in an aqueous medium.
軟質塩化ビニルは一般的に重合度1000〜1500の
塩化ビニル樹脂100重量部に対して40〜100重量部
の可塑剤を添加してなるものが好適である。 Generally speaking, soft vinyl chloride is preferably made by adding 40 to 100 parts by weight of a plasticizer to 100 parts by weight of vinyl chloride resin having a degree of polymerization of 1000 to 1500.
本考案に用いる基布は例えばナイロン、ビニロ
ン、テトロン、木綿等の織布であり、かつ、この
織布の織目を通して樹脂が実質的に密着するに充
分な織目間隔を有するものである。 The base fabric used in the present invention is, for example, a woven fabric of nylon, vinylon, Tetron, cotton, etc., and has sufficient weave spacing so that the resin substantially adheres through the weave of the woven fabric.
この様にして得られた原反は適当なサイズに裁
断後、例えば高周波ウエルダー加工等により袋状
に接合しフレキシブルコンテナーとする。裁断し
た原反同志の接合は、内層を構成するEVA同志、
又は、外層を構成する軟質塩化ビニル同志の場合
は、そのまま重ねて高周波ウエルダー接着ができ
るが、内層と外層を接着させる場合は内層と外層
との層間にあらかじめ作成した、EVAと塩化ビ
ニルとのグラフト共重合体樹脂のフイルム又はシ
ートを介して高周波ウエルダー加工することによ
り容易に接合することができる。 The raw fabric obtained in this manner is cut to an appropriate size and then joined into a bag shape by, for example, high-frequency welding to form a flexible container. The cut raw material is joined together to form the inner layer of EVA,
Alternatively, if the outer layer is made of soft vinyl chloride, it can be stacked as is and bonded using high-frequency welding, but when bonding the inner and outer layers, a graft of EVA and vinyl chloride prepared in advance between the inner and outer layers can be used. They can be easily joined by high-frequency welding through a copolymer resin film or sheet.
［考案の効果］
本考案は、本考案を構成する素材の特徴を生か
した、かつ柔軟性に富んだもので強度の高いもの
であり、得に食品関係、薬品関係の物品を運搬す
るコンテナーに有用である。[Effects of the invention] This invention takes advantage of the characteristics of the materials that make up the invention, and is highly flexible and strong, and is particularly suitable for containers for transporting food-related and pharmaceutical-related items. Useful.
図−１，２，３は本考案の一実施態様の多層フ
レキシブルコンテナーを構成するシートの断面図
を示す。図中１は内層を構成するEVA層。２は
中間層を構成するEVAと塩化ビニルとの共重合
樹脂層。３は外層を構成する軟質塩化ビニル層。
４は基布を示す。図−４は本考案の一実施態様を
構成する基布を上面から見た図で、５は基布を構
成する繊維、６はその織目を示す。図−１，２，
３は基布を夫々異なる場所に置き、樹脂を積層し
た例を示す。
Figures 1, 2, and 3 show cross-sectional views of sheets constituting a multilayer flexible container according to an embodiment of the present invention. 1 in the figure is the EVA layer that constitutes the inner layer. 2 is a copolymer resin layer of EVA and vinyl chloride that constitutes the intermediate layer. 3 is a soft vinyl chloride layer that constitutes the outer layer.
4 indicates the base fabric. FIG. 4 is a top view of the base fabric constituting one embodiment of the present invention, in which 5 indicates the fibers constituting the base fabric, and 6 indicates the weave. Figure-1, 2,
3 shows an example in which base fabrics are placed at different locations and resin is laminated.
Claims (1)
織目を持つ基布を介して内層がエチレン酢酸ビニ
ル共重合樹脂、外層が軟質塩化ビニル樹脂からな
り、かつ内層と外層の層間がエチレン酢酸ビニル
共重合体樹脂と塩化ビニルとのグラフト共重合樹
脂層から成り前記基布の織目を通して樹脂が実質
的に密着した構造を持つ多層フレキシブルコンテ
ナー用シート。 The inner layer is made of ethylene vinyl acetate copolymer resin, the outer layer is made of soft vinyl chloride resin, and the space between the inner layer and the outer layer is made of ethylene vinyl acetate copolymer resin, through a base fabric with a texture made of plastic fibers and/or natural fibers. A multilayer flexible container sheet comprising a graft copolymer resin layer of and vinyl chloride and having a structure in which the resin is substantially adhered through the weave of the base fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15372285U JPH0410042Y2 (en) | 1985-10-09 | 1985-10-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15372285U JPH0410042Y2 (en) | 1985-10-09 | 1985-10-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6263134U JPS6263134U (en) | 1987-04-20 |
| JPH0410042Y2 true JPH0410042Y2 (en) | 1992-03-12 |
Family
ID=31072855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15372285U Expired JPH0410042Y2 (en) | 1985-10-09 | 1985-10-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0410042Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3116896C (en) * | 2018-11-15 | 2023-08-29 | Emd Millipore Corporation | Reinforced film for biocontainers |
-
1985
- 1985-10-09 JP JP15372285U patent/JPH0410042Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6263134U (en) | 1987-04-20 |
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