JPH0114427Y2 - - Google Patents
Info
- Publication number
- JPH0114427Y2 JPH0114427Y2 JP1982190661U JP19066182U JPH0114427Y2 JP H0114427 Y2 JPH0114427 Y2 JP H0114427Y2 JP 1982190661 U JP1982190661 U JP 1982190661U JP 19066182 U JP19066182 U JP 19066182U JP H0114427 Y2 JPH0114427 Y2 JP H0114427Y2
- Authority
- JP
- Japan
- Prior art keywords
- film
- stretched nylon
- lid material
- nylon film
- 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.)
- Expired
Links
- 229920006284 nylon film Polymers 0.000 claims description 12
- 230000004888 barrier function Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- -1 polypropylene Polymers 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 239000012793 heat-sealing layer Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Packages (AREA)
- Laminated Bodies (AREA)
Description
【考案の詳細な説明】
この考案は、包装用容器の蓋材に関するもので
ある。[Detailed description of the invention] This invention relates to a lid material for a packaging container.
従来、レトルト殺菌用としてポリプロピレン製
の容器に延伸ナイロンフイルムに接着剤層を介し
てヒートシール層を形成した蓋材を熱接着したも
のが知られている。この蓋材は、レトルト殺菌が
可能であり、レトルト殺菌後においてもたるむこ
となく張り詰めた状態を維持することができると
共に、イージーオープン性を有し、かつ透明性を
有するため、容器の蓋材として良好なものであ
る。 BACKGROUND ART Conventionally, for retort sterilization, it has been known to thermally bond a lid material made of a stretched nylon film with a heat seal layer formed thereon via an adhesive layer to a polypropylene container. This lid material can be sterilized by retort, maintains a taut state without sagging even after retort sterilization, has easy-to-open properties, and is transparent, so it can be used as a lid material for containers. It is in good condition.
しかしながら、上記の蓋材は、バリヤー性に劣
るという欠点があり、香気が重要な内容物あるい
は酸素、水分などにより変質しやすい内容物の包
装には使用できないという問題があつた。 However, the above-mentioned lidding material has the disadvantage of poor barrier properties and cannot be used for packaging contents for which aroma is important or contents that are easily deteriorated by oxygen, moisture, etc.
上記の問題を解決する手段としては、上記した
蓋材の延伸ナイロンフイルムとヒートシールフイ
ルムとの間にバリヤー性フイルムを介在させるこ
とが考えられるが、この方法には次のような新た
な問題点がある。即ち、製造段階において、延伸
ナイロンフイルムに接着剤層を介してバリヤー性
フイルムを積層し、その後にヒートシールフイル
ムを貼合する場合、延伸ナイロンフイルムとバリ
ヤー性フイルムの積層材は両者の伸度に大きな差
があることなどから大きくカールするので、ヒー
トシールフイルムの貼合がうまくいかないという
問題点がある。 One possible solution to the above problem is to interpose a barrier film between the stretched nylon film and the heat seal film of the lid material, but this method has the following new problems. There is. That is, when a barrier film is laminated to a stretched nylon film via an adhesive layer and then a heat seal film is laminated to the stretched nylon film at the manufacturing stage, the elongation of the laminate of the stretched nylon film and the barrier film varies depending on the elongation of both. There is a problem that the heat-sealing film cannot be laminated successfully because the film curls significantly due to the large difference.
そこで、この考案は、上記の製造上の問題がな
く、しかも、レトルト殺菌が可能であり、レトル
ト殺菌後においてもたるむことなく張り詰めた状
態を維持できると共に、イージーオープン性を有
し、かつ透明でバリヤー性が高い蓋材を提供する
ことを目的とするものである。 Therefore, this invention does not have the above-mentioned manufacturing problems, can be sterilized by retort, maintains a taut state without sagging even after sterilization by retort, has easy openability, and is transparent. The purpose is to provide a lid material with high barrier properties.
以下、この考案の構成を添付図面に基づいて説
明する。図面に示すように、この考案の蓋材１
は、バリヤー性フイルム２の両面に接着剤層３を
介して延伸ナイロンフイルム４を積層し、この延
伸ナイロンフイルム４一方の外面にヒートシール
層６を積層したものである。 The configuration of this invention will be explained below based on the attached drawings. As shown in the drawing, the lid material 1 of this invention
Stretched nylon film 4 is laminated on both sides of a barrier film 2 via an adhesive layer 3, and a heat sealing layer 6 is laminated on one outer surface of the stretched nylon film 4.
上記バリヤー性フイルム２としては、ポリ塩化
ビニリデン、ポリ塩化ビニル等を用いることがで
き、延伸ナイロンフイルムは二軸延伸フイルムが
用いられる。 As the barrier film 2, polyvinylidene chloride, polyvinyl chloride, etc. can be used, and the stretched nylon film is a biaxially stretched film.
また、上記ヒートシール層６は、接着剤層５を
介して熱接着性のシーラントフイルムを積層して
形成しても、また、押出し等により接着剤を直接
塗布して形成してもよい。上記シーラントフイル
ムとしてはポリエチレンとポリプロピレンを混合
したものを好適な例としてあげることができる。 Further, the heat-sealing layer 6 may be formed by laminating heat-adhesive sealant films via the adhesive layer 5, or may be formed by directly applying an adhesive by extrusion or the like. A suitable example of the above-mentioned sealant film is a mixture of polyethylene and polypropylene.
以上のように、この考案によれば、バリヤー性
フイルムの両面に延伸ナイロンフイルムをサンド
イツチ状に設けたことにより、製造中に発生する
カールを抑制することができ、シーラントフイル
ムの貼合が容易になるため、上記した性質、即
ち、バリヤー性を有し、レトルト殺菌が可能であ
り、レトルト殺菌後においてもたるむことなく張
り詰めた状態を維持することができ、またイージ
ーオープン性と透明性を兼ね備えた蓋材を簡単に
製造できるという効果がある。 As described above, according to this invention, by providing the stretched nylon film in a sandwich pattern on both sides of the barrier film, it is possible to suppress the curling that occurs during manufacturing, and it is possible to easily attach the sealant film. Therefore, it has the above-mentioned properties, that is, barrier properties, can be sterilized by retort, can maintain a taut state without sagging even after sterilization by retort, and has both easy openability and transparency. This has the effect that it is possible to easily manufacture a lid material with a lid.
図面はこの考案の実施例を示す拡大断面図であ
る。
１……蓋材、２……バリヤー性フイルム、３，
５……接着剤層、４……延伸ナイロンフイルム、
６……ヒートシール層。
The drawing is an enlarged sectional view showing an embodiment of this invention. 1... Lid material, 2... Barrier film, 3,
5... Adhesive layer, 4... Stretched nylon film,
6...Heat seal layer.
Claims (1)
延伸ナイロンフイルムを積層し、この延伸ナイロ
ンフイルムの一方の外面にヒートシール層を積層
して成る包装用容器の蓋材。 A lid material for a packaging container, comprising a stretched nylon film laminated on both sides of a barrier film via an adhesive layer, and a heat seal layer laminated on one outer surface of the stretched nylon film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19066182U JPS5994829U (en) | 1982-12-15 | 1982-12-15 | Lid material for packaging containers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19066182U JPS5994829U (en) | 1982-12-15 | 1982-12-15 | Lid material for packaging containers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5994829U JPS5994829U (en) | 1984-06-27 |
| JPH0114427Y2 true JPH0114427Y2 (en) | 1989-04-27 |
Family
ID=30410759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19066182U Granted JPS5994829U (en) | 1982-12-15 | 1982-12-15 | Lid material for packaging containers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5994829U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5335778A (en) * | 1976-09-14 | 1978-04-03 | Nippon Synthetic Chem Ind Co Ltd:The | Multi-layer laminates for retort food |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53100339U (en) * | 1977-01-19 | 1978-08-14 |
-
1982
- 1982-12-15 JP JP19066182U patent/JPS5994829U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5335778A (en) * | 1976-09-14 | 1978-04-03 | Nippon Synthetic Chem Ind Co Ltd:The | Multi-layer laminates for retort food |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5994829U (en) | 1984-06-27 |
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