JPS5845081Y2 - laminated materials - Google Patents
laminated materialsInfo
- Publication number
- JPS5845081Y2 JPS5845081Y2 JP7017977U JP7017977U JPS5845081Y2 JP S5845081 Y2 JPS5845081 Y2 JP S5845081Y2 JP 7017977 U JP7017977 U JP 7017977U JP 7017977 U JP7017977 U JP 7017977U JP S5845081 Y2 JPS5845081 Y2 JP S5845081Y2
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- layer
- barrier layer
- laminated material
- barrier
- 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
Description
【考案の詳細な説明】
本考案は、中間に酸素吸収層を有する積層材料に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a laminated material having an oxygen absorbing layer in the middle.
詳しくは、中間に酸素吸収層、外側にガスバリヤ一層、
内側にヒートシール層を有する積層材料に関するもので
ある。In detail, there is an oxygen absorption layer in the middle, a gas barrier layer on the outside,
The present invention relates to a laminated material having a heat-sealing layer on the inside.
従来から食品の品質維持、保存性の向上のため種々の方
法が提案されている。Various methods have been proposed to maintain food quality and improve preservability.
炭酸ガス、窒素ガスまたは混合ガスを用いたガス置換方
式や、包装体内を真空吸引する真空包装方法を用いたり
、食品への添加物添加、レトルト殺菌、紫外線による殺
菌処理、冷凍、冷蔵技術の利用による食品の保存は大き
く向上したが、品質の劣化に大きく影響をおよぼす酸素
を十分に除去することは困難であった。Gas replacement methods using carbon dioxide, nitrogen gas, or mixed gases, vacuum packaging methods that vacuum the inside of the package, addition of additives to foods, retort sterilization, ultraviolet sterilization, freezing, and refrigeration technology. This has greatly improved the preservation of food products, but it has been difficult to sufficiently remove oxygen, which greatly affects quality deterioration.
たとえバイバリヤー性のフィルムを用い真空包装した場
合であっても、酸素の残存はさけることができなかった
。Even when vacuum packaging was performed using a bibarrier film, residual oxygen could not be avoided.
そこで脱酸素剤を食品と共に包装することが提案されて
いるが、包装体の大きさ、脱酸素剤の位置によってその
効果は変化してしまった。Therefore, it has been proposed to package oxygen absorbers together with foods, but the effectiveness varies depending on the size of the package and the location of the oxygen absorber.
また脱酸素剤を食品と別な作業で封入すること、脱酸素
剤の保存等の問題があった。There were also problems such as encapsulating the oxygen absorber in a separate process from the food and storing the oxygen absorber.
本考案はこの脱酸素剤を有効に用いた積層材料で、使用
前は、脱酸素剤が作用開始せず、使用時には十分その作
用をする積層材料である。The present invention is a laminated material that effectively uses this oxygen scavenger, in which the oxygen scavenger does not begin to act before use, but is sufficiently effective during use.
本考案は第１図に示すように外側にバリヤ一層１．５を
設け、バリヤ一層１の下に酸素吸収層２、さらにヒート
シール層３を設けた積層材料である。The present invention is a laminated material in which a barrier layer 1.5 is provided on the outside, an oxygen absorbing layer 2 is provided below the barrier layer 1, and a heat sealing layer 3 is provided as shown in FIG.
ここでバリヤ一層は、酸素遮断性の優れたアルミ箔（厚
さ７μ以上）または、エチレン−ビニルアルコール共重
合体〔エチレン含有量（２０〜４５モル％、ケン化度９
６％以上）〕、塩化ビニリデン系樹脂、ナイロン、ボン
エステル等の樹脂が用いられる。Here, the barrier layer is made of aluminum foil with excellent oxygen barrier properties (thickness of 7 μm or more) or ethylene-vinyl alcohol copolymer [ethylene content (20 to 45 mol%, saponification degree of 9
(6% or more)], vinylidene chloride resin, nylon, bonester, and other resins are used.
このバリヤ一層の酸素透過度が０．ｌｃｃ／ｍ２・２４
ｈｒ・ｌ ａｔｍ以下である。The oxygen permeability of this barrier layer is 0. lcc/m2・24
It is less than hr・l atm.
酸素吸収層２は、低バリヤー性の樹脂中に脱酸素剤を混
合するか、脱酸素剤を直接バリヤ層１に塗布後ポリエチ
レン、ポリプロピレンのように低バリヤ性の樹脂で被覆
したものでもよい。The oxygen absorbing layer 2 may be formed by mixing an oxygen scavenger into a low barrier resin, or by coating the oxygen scavenger directly on the barrier layer 1 and then coating it with a low barrier resin such as polyethylene or polypropylene.
次にヒートシール層３は、酸素吸収層２を包持すると共
に吸収をさまたげない酸素透過度が５．０ｃｃ／ｍ２・
２４ ｈｒ・ｌ ａｔｍ以上の樹脂からなる。Next, the heat-sealing layer 3 has an oxygen permeability of 5.0cc/m2 that encloses the oxygen-absorbing layer 2 and does not hinder absorption.
Made of resin with a capacity of 24 hr・l atm or more.
例えばポリエチレン、ポリプロピレン、アイオノマー、
エチレン−酢酸ビニル共重合体等があげられる。For example, polyethylene, polypropylene, ionomer,
Examples include ethylene-vinyl acetate copolymer.
このヒートシール層とバリヤ一層５の接着強度は１０〜
１００ ｇ ／ １００ ｍｍの範囲のものが好ましい
。The adhesive strength between this heat seal layer and the barrier layer 5 is 10~
A range of 100 g/100 mm is preferred.
この接着強度にするため、ヒートシール層３とバリヤ一
層５の間に剥離層を設けることも可能である。In order to achieve this adhesive strength, it is also possible to provide a release layer between the heat seal layer 3 and the barrier layer 5.
ここで脱酸素剤としては、例えば次亜硫酸ナトノウムと
水酸化カルシウムと水を含ませた活性炭とからなるもの
があげられる。Examples of the oxygen scavenger include those made of activated carbon impregnated with sodium hyposulfite, calcium hydroxide, and water.
この反応は以下のようである。The reaction is as follows.
Ｎａ２Ｓ２Ｏ４＋０２→Ｎａ２ＳＯ４＋５Ｏ２Ｃａ（Ｏ
Ｈ）２＋ＳＯ２→ＣａＳＯ３＋Ｈ２０Ｎａ２Ｓ２Ｏ４＋
Ｃａ（ＯＨ）２千０２→Ｎａ２ＳＯ４＋ＣａＳＯ３＋Ｈ
２０
ほかに塩化第１鉄と亜硫酸ナトリウムからなるものもあ
る。Na2S2O4+02→Na2SO4+5O2Ca(O
H)2+SO2→CaSO3+H20Na2S2O4+
Ca(OH)2002→Na2SO4+CaSO3+H
20 Others consist of ferrous chloride and sodium sulfite.
本考案の積層材料は、使用に際しては、第２図に示すよ
うにバリヤ一層５を剥離し ヒートシール層３の面を重
合し、熱封着し内容物を包装するか、成型容器の蓋材と
して使用すると効果を有する。When using the laminated material of the present invention, as shown in Figure 2, the barrier layer 5 is peeled off, the surface of the heat-sealing layer 3 is polymerized, and the contents are packaged by heat sealing, or as a lid for a molded container. It is effective when used as
このように本考案の積層材料は、使用前は酸素吸収層は
作用せずそのまま保存可能であって、しかも使用にあた
ってはバリヤ一層を剥離すれば酸素吸収層が酸素を吸収
し、包装体内の酸素を除き、内容物を長期保存すること
が可能である。In this way, the laminated material of the present invention can be stored as it is without the oxygen absorption layer acting on it before use.Moreover, when the barrier layer is peeled off before use, the oxygen absorption layer absorbs oxygen and the oxygen inside the package is removed. It is possible to store the contents for a long period of time.
第１図は、本考案の断面図、第２図は本考案の材料の使
用例を示す断面図である。
１．５・・・・・・バリヤ一層、２・・・・・・酸素吸
収層、３・・・・・・ヒートシール層。FIG. 1 is a sectional view of the present invention, and FIG. 2 is a sectional view showing an example of the use of the material of the present invention. 1.5... Barrier layer, 2... Oxygen absorption layer, 3... Heat seal layer.
Claims (2)
層およびヒートシール層を設けたことを特徴とする積層
材料。(1) A laminated material characterized in that a barrier layer is provided on the outer side of the surface, and an oxygen absorbing layer and a heat sealing layer are provided in the middle.
１００ ｇ ／１００ ｍｍである実用新案登録請求の
範囲第１項記載の積層材料。(2) Adhesive strength between barrier layer and heat seal layer: 10~
The laminated material according to claim 1, which has a weight of 100 g/100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7017977U JPS5845081Y2 (en) | 1977-05-31 | 1977-05-31 | laminated materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7017977U JPS5845081Y2 (en) | 1977-05-31 | 1977-05-31 | laminated materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53163378U JPS53163378U (en) | 1978-12-21 |
| JPS5845081Y2 true JPS5845081Y2 (en) | 1983-10-13 |
Family
ID=28979732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7017977U Expired JPS5845081Y2 (en) | 1977-05-31 | 1977-05-31 | laminated materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5845081Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003101859A1 (en) * | 2002-06-04 | 2003-12-11 | Taiyo Ink Manufacturing Co., Ltd. | Packaging bag material for hardenable composition |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56115230A (en) * | 1980-02-19 | 1981-09-10 | Toppan Printing Co Ltd | Container having freshness maintaining effect and manufacture thereof |
| JP5678512B2 (en) * | 2010-08-06 | 2015-03-04 | 大日本印刷株式会社 | Method for producing oxygen-absorbing laminate |
| JP2012035515A (en) * | 2010-08-06 | 2012-02-23 | Dainippon Printing Co Ltd | Oxygen absorbing laminated body and packaging container |
| JP2012035516A (en) * | 2010-08-06 | 2012-02-23 | Dainippon Printing Co Ltd | Oxygen absorbing laminated body and packaging container |
-
1977
- 1977-05-31 JP JP7017977U patent/JPS5845081Y2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003101859A1 (en) * | 2002-06-04 | 2003-12-11 | Taiyo Ink Manufacturing Co., Ltd. | Packaging bag material for hardenable composition |
| CN100355564C (en) * | 2002-06-04 | 2007-12-19 | 太阳油墨制造株式会社 | Packaging bag material for hardenable composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53163378U (en) | 1978-12-21 |
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