JPH01105733A - Packaging film and manufacture thereof - Google Patents
Packaging film and manufacture thereofInfo
- Publication number
- JPH01105733A JPH01105733A JP26474687A JP26474687A JPH01105733A JP H01105733 A JPH01105733 A JP H01105733A JP 26474687 A JP26474687 A JP 26474687A JP 26474687 A JP26474687 A JP 26474687A JP H01105733 A JPH01105733 A JP H01105733A
- Authority
- JP
- Japan
- Prior art keywords
- film
- packaging
- base film
- layer
- stretched
- 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
- 229920006280 packaging film Polymers 0.000 title claims description 9
- 239000012785 packaging film Substances 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 12
- 239000000057 synthetic resin Substances 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 20
- 239000012790 adhesive layer Substances 0.000 claims description 5
- 238000007740 vapor deposition Methods 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims 1
- 238000004806 packaging method and process Methods 0.000 abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 238000011049 filling Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000001465 metallisation Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 235000009508 confectionery Nutrition 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 235000013305 food Nutrition 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Wrappers (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は自動包装装置を利用して金属蒸着合成樹脂積層
フィルムで防湿性、非酸化性を要求される食品類等の自
動包装を行うに当たって、従来の金属蒸着合成樹脂積層
フィルムによるものは、包装工程中にて縦（長さ）方向
等に牽引することにより、金属蒸着層にクラックを生じ
、折角金属蒸着層を存するため包装内へ外気が進入する
のを防止し得たものと考えていたにもかかわらず、収容
物たる菓子類等の吸湿による不良化、酸化による変質等
の現象を生ずる重大な欠点を存したもので、このような
欠点のない包装フィルム並びにその製法を提供するもの
である。Detailed Description of the Invention "Field of Industrial Application" The present invention is applied to the automatic packaging of foods, etc., which require moisture-proofing and non-oxidizing properties, using a metal-deposited synthetic resin laminated film using an automatic packaging device. With conventional laminated metal-deposited synthetic resin films, cracks occur in the metal-deposited layer when pulled in the vertical (longitudinal) direction during the packaging process. Although it was thought that it was possible to prevent the intrusion of confectionery, etc., there was a serious drawback that caused phenomena such as the confectionery and other items contained therein becoming defective due to moisture absorption and deterioration due to oxidation. The purpose of the present invention is to provide a packaging film and a method for producing the same without any drawbacks.
「従来の技術」
この種包装に当たっては従来、未延伸合成樹脂フィルム
の片面に金属蒸着を施し接着層を介して一軸延伸合成樹
脂ベースフィルムを積層した包装用フィルムを用い、縦
方向に移動させつつ自動機械によってシール包装をする
を普通とするもので、金属蒸着層の存在により包装内部
に通気性がなく、菓子等の収容物に湿気を吸収したり、
空気中の酸素を吸収して酸化する等のおそれはないよう
に品質設計されていたが、現実の問題としては自動包装
機中を移行中、包装用フィルムに牽引力が作用し、基材
たるフィルムが伸張したために金属蒸着層にクラックを
生じ、合成樹脂フィルム部分は一度伸張しても容易に原
状に復するが、金属蒸着層は一度生じたクラックは原状
に復帰せず、クラックを残存し、このクラック部分より
外気が内部に侵入し、収容菓子類等に吸湿現象又は酸化
現象等を生じ、また内容食品の経時酸化防止のため不活
性ガスを包装時に充填包装するガス充填包装の場合にも
、充填したガスが金属蒸着層に生じたクラックから容易
に包装袋外に流出し当初の品質変化防止等の効果が得ら
れな（なる場合もあった。``Prior art'' Conventionally, this type of packaging uses a packaging film in which metal vapor deposition is applied to one side of an unstretched synthetic resin film and a uniaxially oriented synthetic resin base film is laminated via an adhesive layer. The packaging is usually sealed using an automatic machine, and due to the presence of a metal vapor-deposited layer, there is no air permeability inside the package, which may cause moisture to be absorbed into the contents, such as confectionery, etc.
Although the quality was designed to avoid the risk of oxidation due to absorption of oxygen in the air, the actual problem is that traction forces act on the packaging film while it is being transferred through an automatic packaging machine, causing the film, which is the base material, to Cracks occur in the metal vapor deposited layer due to stretching, and the synthetic resin film easily returns to its original state even if it is stretched once, but once cracks occur in the metal vapor deposit layer, they do not return to their original state and cracks remain. Outside air enters the interior through these cracks, causing moisture absorption or oxidation phenomena in the confectionery, etc. Also, in the case of gas-filled packaging, in which inert gas is filled during packaging to prevent the food contents from oxidizing over time. In some cases, the filled gas easily leaked out of the packaging bag through cracks that occurred in the metal vapor deposited layer, making it impossible to obtain the initial effect of preventing quality changes.
「発明が解決しようとする問題点」
本発明は、このクラックを生ずるおそれのない金属蒸着
合成樹脂積層フィルム並びにその製法を提供し、吸湿、
酸化等の劣化を生ずるおそれのない自動充填包装を可能
とすることを目的とするものである。"Problems to be Solved by the Invention" The present invention provides a metal-deposited synthetic resin laminated film that is free from the risk of cracking, and a method for producing the same, and provides moisture absorption,
The purpose is to enable automatic filling and packaging without the risk of deterioration such as oxidation.
「問題点を解決するための手段」
本発明では前記目的を達成するために一軸延伸した縦（
長さ）方向伸率５０％以下のベースフィルムを用い、金
属蒸着用フィルムは未延伸タイプを使用する。従ってこ
れらを積層したフィルムも５０％以下の伸張性を存する
に過ぎないから包装機中にて合成樹脂フィルムを牽引す
るも伸張性が乏しく、金属蒸着層にクラックを生ずるお
それがなく、包装内外に外気の流通、透過することなく
、収容物の吸湿、酸化等の現象を生ぜしめないことを可
能としたものである。"Means for Solving the Problems" In order to achieve the above object, the present invention provides uniaxially stretched longitudinal (
A base film with an elongation rate in the length) direction of 50% or less is used, and an unstretched type film is used for metal deposition. Therefore, the film laminated with these materials also has an elongation of less than 50%, so even when the synthetic resin film is pulled through a packaging machine, it has poor elongation, and there is no risk of cracks occurring in the metal-deposited layer. This prevents outside air from circulating or permeating the container, thereby preventing moisture absorption, oxidation, and other phenomena from occurring in the stored material.
「実施例並びにその作用」
今、ここに本発明実施例としての包装用金属蒸着積層フ
ィルムを現した添付図面に就いて詳説する。"Embodiments and their effects" Now, a detailed explanation will be given with reference to the attached drawings showing a metal-deposited laminated film for packaging as an embodiment of the present invention.
１１；Ｊ：Ｐ、Ｐ等の一軸延伸ベースフィルムで、縦（
長さ）方向伸率５０％以下の低伸度のフィルム層である
。なお、１のベースフィルムについては横（巾）方向の
裂は易さを防止するため、横方向に若干延伸したベース
フィルムを用いても良い。３は未延伸Ｐ、Ｐフィルム層
で、公知の手段によって該フィルム３の片面にアルミ蒸
着層４を施すものである。該アルミ蒸着層４の表面に接
着層２を介して前記ベースフィルムを積層接着するもの
である。11; J: A uniaxially stretched base film such as P, P, etc.
It is a low elongation film layer with an elongation in the length) direction of 50% or less. In addition, regarding the base film 1, in order to prevent easy tearing in the lateral (width) direction, a base film slightly stretched in the lateral direction may be used. 3 is an unstretched P, P film layer, and an aluminum vapor deposition layer 4 is applied to one side of the film 3 by known means. The base film is laminated and bonded to the surface of the aluminum vapor-deposited layer 4 via the adhesive layer 2.
本発明の包装フィルムは以上のような構成を存 ４し、
自動包装機によって充填包装シール等の移行工程を経過
し、縦方向等に牽引されても、ベースフィルムは縦方向
に低伸度であり、伸張性なく、従ってこれに積層したア
ルミ蒸着を施した未延伸フィルム３の金属蒸着層に伸張
の影響を与えることなく、伸張による蒸着層のクラック
等を発生を生ぜしめないもので、金属蒸着層は完全に包
装内外の空気の流通を防止することが出来、吸湿、酸化
等の劣化を包装収容物に与えない作用を存するものであ
る。The packaging film of the present invention has the above configuration.
The base film has low elongation in the vertical direction and is not stretchable even when it is pulled in the vertical direction after passing through the transition process such as filling, packaging, and sealing by an automatic packaging machine. The metal vapor-deposited layer of the unstretched film 3 is not affected by stretching, and does not cause cracks in the vapor-deposited layer due to stretching, and the metal vapor-deposited layer can completely prevent air from flowing inside and outside the package. It has the function of preventing deterioration such as dryness, moisture absorption, and oxidation from being caused to the packaged contents.
「発明の効果」
本発明に係る包装フィルムによって防湿性、耐酸化性を
要求される菓子等を収容包装した場合は、縦型牽引性の
ある自動包装機械による場合もクラック等の存しない金
属蒸着層によって内外の空気の流通を完全に遮断してい
るから、外気の侵入又は不活性ガスの流出等による吸湿
、酸化等のおそれのない卓越した包装を可能とする効果
があるものである。"Effects of the Invention" When the packaging film of the present invention is used to house and package confectionery, etc. that require moisture resistance and oxidation resistance, the metal vapor deposition film is free from cracks even when using an automatic packaging machine with vertical traction. Since the layer completely blocks the flow of air between the inside and outside, it has the effect of enabling excellent packaging without the risk of moisture absorption, oxidation, etc. due to the intrusion of outside air or the outflow of inert gas.
添付図面は本発明実施の一例を示すもので、本包装フィ
ルムの断面図である。
１−低伸度一軸延伸ベースフィルム層、２−接着層、３
・−未延伸フィルム層、４・−金属蒸着層。
出願人 京阪セロファン株式会社
（ほか２名）The accompanying drawing shows an example of the implementation of the present invention, and is a sectional view of the present packaging film. 1-Low elongation uniaxially stretched base film layer, 2-Adhesive layer, 3
-Unstretched film layer, 4.-Metal deposited layer. Applicant: Keihan Cellophane Co., Ltd. (and 2 others)
Claims (1)
該金属蒸着層の面に接着層を介在して縦方向延び率５０
％以下の低伸度一軸延伸合成樹脂ベースフィルム層を存
することを特徴とするクラック発生防止性金属蒸着包装
フィルム。 ２、合成樹脂フィルムに一軸延伸操作を施し、この場合
縦方向延び率５０％以下となるよう低伸度となしてベー
スフィルムを作製し、別に未延伸合成樹脂フィルム面に
金属蒸着を施し、該金属蒸着面に接着層を介して前記ベ
ースフィルムを積層することを特徴とするクラック発生
防止性金属蒸着包装フィルムの製法。[Claims] 1. A metal vapor deposited layer is present on the surface of the unstretched synthetic resin film,
With an adhesive layer interposed on the surface of the metal vapor deposited layer, the longitudinal elongation rate is 50.
1. A crack-preventing metallized packaging film characterized by having a low elongation uniaxially stretched synthetic resin base film layer having a low elongation of less than %. 2. A synthetic resin film is uniaxially stretched, and in this case, a base film is produced with a low elongation of 50% or less in the longitudinal direction. Separately, metal vapor deposition is performed on the surface of the unstretched synthetic resin film, and the A method for producing a crack-preventing metal vapor-deposited packaging film, which comprises laminating the base film on a metal vapor-deposited surface via an adhesive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26474687A JPH01105733A (en) | 1987-10-20 | 1987-10-20 | Packaging film and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26474687A JPH01105733A (en) | 1987-10-20 | 1987-10-20 | Packaging film and manufacture thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01105733A true JPH01105733A (en) | 1989-04-24 |
| JPH0478100B2 JPH0478100B2 (en) | 1992-12-10 |
Family
ID=17407604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26474687A Granted JPH01105733A (en) | 1987-10-20 | 1987-10-20 | Packaging film and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01105733A (en) |
-
1987
- 1987-10-20 JP JP26474687A patent/JPH01105733A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0478100B2 (en) | 1992-12-10 |
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