JPH07246674A - Packaging film - Google Patents
Packaging filmInfo
- Publication number
- JPH07246674A JPH07246674A JP4072794A JP4072794A JPH07246674A JP H07246674 A JPH07246674 A JP H07246674A JP 4072794 A JP4072794 A JP 4072794A JP 4072794 A JP4072794 A JP 4072794A JP H07246674 A JPH07246674 A JP H07246674A
- Authority
- JP
- Japan
- Prior art keywords
- film
- heat
- packaging
- fusible substance
- partially
- 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 abstract description 28
- 239000012785 packaging film Substances 0.000 title claims abstract description 28
- 239000000126 substance Substances 0.000 claims abstract description 20
- 239000012790 adhesive layer Substances 0.000 claims abstract description 7
- 239000005001 laminate film Substances 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 20
- 238000004806 packaging method and process Methods 0.000 claims description 14
- 230000004888 barrier function Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 238000010030 laminating Methods 0.000 claims description 9
- 229940123973 Oxygen scavenger Drugs 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000005022 packaging material Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000006866 deterioration Effects 0.000 abstract description 3
- 239000004743 Polypropylene Substances 0.000 abstract description 2
- 229920005549 butyl rubber Polymers 0.000 abstract description 2
- 229920001577 copolymer Polymers 0.000 abstract description 2
- -1 polypropylene Polymers 0.000 abstract description 2
- 229920001155 polypropylene Polymers 0.000 abstract description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 8
- 229920000092 linear low density polyethylene Polymers 0.000 description 7
- 239000004707 linear low-density polyethylene Substances 0.000 description 7
- 239000004372 Polyvinyl alcohol Substances 0.000 description 6
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000007740 vapor deposition Methods 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 238000009461 vacuum packaging Methods 0.000 description 2
- 101100160821 Bacillus subtilis (strain 168) yxdJ gene Proteins 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009820 dry lamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Wrappers (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、優れた耐ピンホール性
を有する、特に、被包装物の変質や劣化の防止を目的と
したガス置換包装や脱酸素剤入り包装に好適な包装用フ
ィルムに関するものである。FIELD OF THE INVENTION The present invention relates to a packaging film having excellent pinhole resistance, and particularly suitable for gas displacement packaging or packaging containing an oxygen scavenger for the purpose of preventing alteration or deterioration of the packaged object. It is about.
【０００２】[0002]
【従来の技術】従来から、食品、医薬品、工業材料等の
変質や劣化を防止する目的でガスバリヤー性を有するラ
ミネートフィルムを用いて真空包装、ガス置換包装、脱
酸素剤入り包装等が多用されている。このような包装形
態に適するラミネートフィルムのガスバリヤー層として
は、アルミニウム箔、アルミニウム蒸着フィルム、Ｓｉ
Ｏｘ蒸着フィルム、ポリビニルアルコール、エチレン−
ビニルアルコール共重合体やナイロンフィルム表面にポ
リ塩化ビニリデンをコーティングしたいわゆるＫコート
ナイロン等が用いられている。2. Description of the Related Art Conventionally, vacuum packaging, gas displacement packaging, packaging containing an oxygen scavenger, etc. are often used by using a laminated film having a gas barrier property for the purpose of preventing alteration or deterioration of foods, pharmaceuticals, industrial materials and the like. ing. The gas barrier layer of the laminated film suitable for such a packaging form includes aluminum foil, aluminum vapor deposition film, Si
Ox vapor deposition film, polyvinyl alcohol, ethylene-
A so-called K-coated nylon in which a vinyl alcohol copolymer or a nylon film surface is coated with polyvinylidene chloride is used.
【０００３】これらのうちで、アルミニウム蒸着フィル
ム、ＳｉＯｘ蒸着フィルム、ポリビニルアルコール、エ
チレン−ビニルアルコール共重合体は極めて優れたガス
バリヤー性を有しており多用されているが、運搬時の摩
擦や屈曲あるいは衝撃等によってピンホールが発生し
て、せっかくのガスバリヤー性が発揮できなくなるとい
う問題があった。Of these, aluminum vapor-deposited films, SiOx vapor-deposited films, polyvinyl alcohol, and ethylene-vinyl alcohol copolymers are widely used because they have extremely excellent gas barrier properties, but they are often used for friction and bending during transportation. Alternatively, there is a problem that pinholes are generated due to impact or the like, and the desired gas barrier property cannot be exhibited.
【０００４】上述したピンホールの発生を防止するため
に様々な基材構成のラミネートフィルムが提案されては
いるが、特に、少量の酸素の存在で変質、劣化が起こる
ような被包装物のガス置換包装又は脱酸素剤入り包装に
適用できるレベルのラミネートフィルムを開発すること
は極めて困難であった。Laminate films of various base materials have been proposed in order to prevent the occurrence of the above-mentioned pinholes, but in particular, gas of a packaged product which is deteriorated or deteriorated in the presence of a small amount of oxygen. It has been extremely difficult to develop a laminate film of a level applicable to a replacement package or a package containing an oxygen absorber.
【０００５】一方、従来から包装用袋を二重構造にし
た、いわゆる二重袋を用いて内容物の漏洩や袋の損傷を
防止する方法が行われている。しかしながら、一般にラ
ミネートフィルムの表面層には耐熱性と機械的強度に優
れたフィルムを使用しているので、部分的に接着するの
に最も簡便な方法であるヒートシール法でラミネートフ
ィルムと外装フィルムを接着することが不可能であり、
したがって、ラミネートフィルムを用いた包装用袋を二
重袋とすることは極めて困難であった。On the other hand, conventionally, there has been performed a method of preventing leakage of contents and damage to the bag by using a so-called double bag having a double structure for the packaging bag. However, since a film excellent in heat resistance and mechanical strength is generally used for the surface layer of the laminate film, the laminate film and the exterior film are heat-sealed, which is the simplest method for partially adhering. Impossible to glue,
Therefore, it was extremely difficult to make the packaging bag using the laminated film into a double bag.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、ラミネート
フィルムを用いて耐ピンホール性に優れた二重袋を従来
の製袋機を用いて連続的に容易に製造できる、特にガス
置換包装や脱酸素剤入り包装に好適な包装用フィルムを
提供することを目的とする。DISCLOSURE OF THE INVENTION The present invention is capable of continuously and easily producing a double bag having excellent pinhole resistance using a laminated film by using a conventional bag-making machine, and particularly gas replacement packaging and It is an object of the present invention to provide a packaging film suitable for packaging with an oxygen absorber.
【０００７】[0007]
【課題を解決するための手段】本発明によれば、ガスバ
リヤー性を有するラミネートフィルムの表面に外装フィ
ルムが積層された包装用フィルムにおいて、ラミネート
フィルムと外装フィルムは少なくとも両側端部を含む長
手方向に平行な帯状の接着層を介して部分的に接着され
ており、更に、熱融着性物質がラミネートフィルム表面
と外装フィルムの間の所望の位置に部分的に塗布されて
いることを特徴とする包装用フィルムが提供され、更
に、熱融着性物質が長手方向を横切る形状で適宜間隔で
塗布されていることを特徴とする前記包装用フィルムが
提供され、更に、熱融着性物質が長手方向に垂直に適宜
幅と間隔で帯状に塗布されていることを特徴とする前記
包装用フィルムが提供され、更に、ラミネートフィルム
と外装フィルムの接着が押出ラミネート法又はドライラ
ミネート法により行われたものであることを特徴とする
前記包装用フィルムが提供され、更に、前記ガス置換包
装又は脱酸素剤入り包装用フィルムが提供される。According to the present invention, in a packaging film in which an exterior film is laminated on the surface of a laminate film having gas barrier properties, the laminate film and the exterior film include at least both side end portions in the longitudinal direction. Characterized in that it is partially adhered via a strip-shaped adhesive layer parallel to, and further, the heat-fusible substance is partially applied at a desired position between the laminate film surface and the exterior film. The packaging film is provided, further, the packaging film is characterized in that the heat-fusible substance is applied at an appropriate interval in a shape crossing the longitudinal direction, further, the heat-fusible substance is There is provided the above-mentioned packaging film, which is applied in a band shape at an appropriate width and interval perpendicular to the longitudinal direction, and further, a contact between the laminate film and the exterior film is provided. There the packaging film is provided which is characterized in that the work was performed by an extrusion lamination method or a dry lamination method, further, the gas exchange packaging or oxygen scavenger-containing packaging film is provided.
【０００８】すなわち、ラミネートフィルムを用いた場
合においても、ラミネートフィルムと外装フィルムとを
あらかじめ部分的に接着しており、しかも将来ヒートシ
ールする必要が生じる部分に熱融着性物質が塗布された
本発明の包装用フィルムを用いると、従来のラミネート
フィルムを用いる製袋機をそのまま用いても、製袋、そ
の他の作業時の取扱い性が優れており、しかも摩擦や衝
撃に起因するピンホール発生の防止に効果的な二重袋が
容易に製造できることを見いだし本発明にいたったもの
である。That is, even when a laminated film is used, a book in which the laminated film and the exterior film are partially adhered to each other in advance, and a heat-fusible substance is applied to a portion which needs to be heat-sealed in the future. When the packaging film of the invention is used, even if the conventional bag-making machine using the laminated film is used as it is, the handling property during bag-making and other operations is excellent, and pinholes caused by friction and impact are not generated. The present invention has been found out that a double bag effective for prevention can be easily manufactured.
【０００９】以下に、図面に基づいて本発明を詳細に説
明する。本発明において使用する、ガスバリヤー性を有
するラミネートフィルム２としては特に制限はないが、
高いガスバリヤー性を有し、耐ピンホール性に劣るとさ
れているアルミニウム蒸着フィルム、ＳｉＯｘ蒸着フィ
ルム、ポリビニルアルコール（ＰＶＡ）、エチレン−ビ
ニルアルコール共重合体（ＥＶＯＨ）等のガスバリヤー
層、特に、ＰＶＡ又はＥＶＯＨからなる層を少なくとも
一層以上有しているラミネートフィルム２が好ましい。The present invention will be described in detail below with reference to the drawings. The laminated film 2 having a gas barrier property used in the present invention is not particularly limited,
Gas vapor barrier layers such as aluminum vapor deposition film, SiOx vapor deposition film, polyvinyl alcohol (PVA), ethylene-vinyl alcohol copolymer (EVOH), which have high gas barrier properties and are inferior in pinhole resistance, especially, A laminate film 2 having at least one layer made of PVA or EVOH is preferable.
【００１０】このような条件を満たすラミネートフィル
ム２として、例えば、ＮＹ／ＥＶＯＨ／ＬＬＤＰＥ、Ｐ
ＥＴ／ＥＶＯＨ／ＬＬＤＰＥ、ＮＹ／ＬＬＤＰＥ／ＰＶ
Ａ／ＬＬＤＰＥ、ＮＹ／ＨＤＰＥ／ＰＶＡ／ＬＬＤＰ
Ｅ、ＰＥＴ／ＬＬＤＰＥ／ＥＶＯＨ／ＬＬＤＰＥ、ＰＥ
Ｔ／ＨＤＰＥ／ＥＶＯＨ／ＬＬＤＰＥ等の三層あるいは
それ以上の構成のラミネートフィルム２が挙げられる。As the laminated film 2 satisfying such conditions, for example, NY / EVOH / LLDPE, P
ET / EVOH / LLDPE, NY / LLDPE / PV
A / LLDPE, NY / HDPE / PVA / LLDP
E, PET / LLDPE / EVOH / LLDPE, PE
Examples of the laminate film 2 include three layers of T / HDPE / EVOH / LLDPE or more.
【００１１】外装フィルム３としては、外装面に使用さ
れることから機械的強度の優れたフィルムを用いるのが
好ましく、例えば、延伸されたＰＥＴフィルム、ＮＹフ
ィルム、もしくはそれらのフィルムとポリオレフィン系
樹脂等との積層フィルム等が好適に使用される。As the exterior film 3, it is preferable to use a film having excellent mechanical strength because it is used for the exterior surface. For example, stretched PET film, NY film, or those films and polyolefin resin. Laminated films and the like are preferably used.
【００１２】本発明の包装用フィルム１の製造は、例え
ば、まず上記ラミネートフィルム２及び／又は外装フィ
ルム３の所望する位置にエチレン−酢酸ビニル共重合
体、ブチルゴム、塩素化ポリプロピレン等の熱融着性物
質４を加熱、あるいは溶液にして部分的に塗布する。こ
の熱融着性物質４が塗布された位置でラミネートフィル
ム２と外装フィルム３とをヒートシール可能とすること
ができるので、熱融着性物質４は製袋時のヒートシール
により上記フィルム同士を接着させたい部分に塗布すれ
ばよい。したがって、袋を形成した場合の底部や開口部
付近に塗布することが好ましく、通常は、長手方向を横
切る形状で適宜間隔で塗布される。この形状を選択すれ
ば、通常の製袋機で平底袋や角底袋等を自由に製造する
ことが可能である。特に、通常の三方シールや背貼りシ
ール形態の袋を製造する場合には、袋の底部と開口部に
位置するように長手方向に垂直に適宜幅と間隔で帯状に
塗布することが好ましい。In the production of the packaging film 1 of the present invention, for example, first, heat fusion of an ethylene-vinyl acetate copolymer, butyl rubber, chlorinated polypropylene or the like is carried out at a desired position on the laminate film 2 and / or the exterior film 3. The active substance 4 is heated, or is partially applied as a solution. Since the laminate film 2 and the exterior film 3 can be heat-sealed at the position where the heat-fusible substance 4 is applied, the heat-fusible substance 4 separates the above-mentioned films by heat-sealing during bag making. It may be applied to the part to be bonded. Therefore, it is preferable to apply it to the bottom and the vicinity of the opening when the bag is formed, and usually, it is applied in a shape crossing the longitudinal direction at appropriate intervals. If this shape is selected, it is possible to freely manufacture flat-bottomed bags, square-bottomed bags and the like with a normal bag-making machine. In particular, in the case of manufacturing a bag having a normal three-sided seal or back-sealed seal form, it is preferable that the bag is applied vertically in the longitudinal direction so as to be located at the bottom and the opening of the bag, with a suitable width and interval.
【００１３】ついで、ラミネートフィルム２と外装フィ
ルム３の少なくとも両側端部を含む長手方向に平行な帯
状の接着層５を介して部分的に接着して図１で示される
本発明の包装用フィルムが得られる。なお、接着方法と
しては、ドライラミネート法、押出ラミネート法、ウエ
ットラミネート法、あるいは前の工程で用いる熱融着性
物質４を用いてヒートシールする等の方法が挙げられる
が、特に、ドライラミネート法、押出ラミネート法が限
定された部位を連続的に、安価に接着するのに好適であ
り、作業性もよいので好ましい。Then, the laminating film 2 and the exterior film 3 are partially adhered via a strip-shaped adhesive layer 5 which is parallel to the longitudinal direction and includes at least both end portions to obtain the packaging film of the present invention shown in FIG. can get. Examples of the bonding method include a dry laminating method, an extrusion laminating method, a wet laminating method, and a method of heat-sealing using the heat-fusible substance 4 used in the previous step, but the dry laminating method is particularly preferable. It is preferable that the extrusion laminating method is suitable for continuously and inexpensively adhering a limited portion and has good workability.
【００１４】得られた、包装用フィルム１は図１に示す
ように少なくとも両側端部が接着層５によって、該フィ
ルム１の流れ方向に連続して接着されており、また、ラ
ミネートフィルム２と外装フィルム３の間に熱融着性物
質４が部分的に塗布された構造となっている。As shown in FIG. 1, the obtained packaging film 1 has at least both side ends thereof continuously bonded in the flow direction of the film 1 by the adhesive layers 5, and the laminated film 2 and the outer packaging are also bonded. The heat-fusible substance 4 is partially applied between the films 3.
【００１５】この包装用フィルム１から二重袋６を製造
する方法は、例えば、まず包装用フィルム１のそれぞれ
ラミネートフィルム１のシーラント層が向かい合うよう
に２枚重ねて供給し、接着層５によって接着されている
部分をヒートシールしてサイドシール部分を形成し、つ
いで長手方向に垂直に帯状に塗布された熱融着性物質４
の半分に熱板が当たるようにヒートシールして、カット
すれば図２（Ａ）に示すような三方シールが施された二
重袋６が得られる。In the method of manufacturing the double bag 6 from the packaging film 1, for example, first, two sheets of the packaging film 1 are laminated and supplied so that the sealant layers of the laminated films 1 face each other, and the adhesive is applied by the adhesive layer 5. The heat-fusible substance 4 is heat-sealed to form a side-sealed portion, and then applied in the form of a band perpendicular to the longitudinal direction.
By heat-sealing so that the hot plate hits half of the sheets and cutting, a double bag 6 with a three-way seal as shown in FIG. 2A is obtained.
【００１６】他の、製造方法の一例としては、包装用フ
ィルム１を２つに折り畳んで背貼りシールを施したチュ
ーブ状とした後、長手方向に垂直に帯状に塗布された熱
融着性物質４の半分に熱板が当たるようにヒートシール
して、カットして図２（Ｂ）に示すような背張りシール
が施された二重袋６が得られる。As another example of the manufacturing method, after the packaging film 1 is folded in two to form a tube with a backing sticker, a heat-fusible substance is applied in a strip shape perpendicular to the longitudinal direction. 4 is heat-sealed so that the hot plate hits half of it, and cut to obtain a double bag 6 having a backing seal as shown in FIG. 2 (B).
【００１７】この、二重袋６の開口部付近のラミネート
フィルム２と外装フィルム３の間には、ヒートシールさ
れていない熱融着性物質４が存在しているので、この二
重袋に被包装物を入れてから、開口部をヒートシールし
て密封する際に、ラミネートフィルム２と外装フィルム
３も同時にヒートシールされる。Since the heat-sealable substance 4 which is not heat-sealed exists between the laminate film 2 and the exterior film 3 near the opening of the double bag 6, the double bag is covered with the heat-fusible substance 4. The laminate film 2 and the exterior film 3 are also heat-sealed at the same time when the opening is heat-sealed and sealed after the package is put therein.
【００１８】[0018]
【効果】本発明の包装用フィルム１はあらかじめガスバ
リヤー性のラミネートフィルム２と外装フィルム３が部
分的に接着されており、しかも製袋時にヒートシールす
る部分にも熱融着性物質４が塗布されているので、複雑
な工程や作業をともなうことなく、従来のラミネートフ
ィルムを製袋するのと同様にして二重袋６を連続的に容
易に製造することができる。この二重袋６を用いると、
輸送中に摩擦や屈曲あるいは衝撃がかかっても、外装フ
ィルム３がラミネートフィルム２とは無関係に変形でき
るので、ラミネートフィルム２にピンホールが発生する
のを防止できる。したがって、ラミネートフィルム２の
優れたガスバリヤー性を損なうことがないので真空包装
用途はもちろん、食品、医薬品のように空気中の酸素の
存在によって変質や劣化が起こりやすいため、極めて高
度なガスバリヤー性が要求されるガス置換包装や脱酸素
剤入り包装に好適に使用できる。[Effect] In the packaging film 1 of the present invention, the gas barrier laminate film 2 and the exterior film 3 are partially adhered in advance, and the heat-fusible substance 4 is applied to the portion to be heat-sealed during bag making. Therefore, the double bag 6 can be continuously and easily manufactured in the same manner as in the case of manufacturing a conventional laminated film, without involving complicated steps or operations. With this double bag 6,
Even if friction, bending, or impact is applied during transportation, the exterior film 3 can be deformed regardless of the laminate film 2, so that the occurrence of pinholes in the laminate film 2 can be prevented. Therefore, since the excellent gas barrier property of the laminate film 2 is not impaired, it is not only used for vacuum packaging, but also easily deteriorates or deteriorates due to the presence of oxygen in the air like foods and pharmaceuticals, and therefore has an extremely high gas barrier property. It can be preferably used for gas replacement packaging and packaging containing oxygen absorber.
【図１】本発明の包装用フィルム１の一例を示す（Ａ）
説明図及びその（Ｂ）ＸＸ’断面図である。FIG. 1 shows an example of a packaging film 1 of the present invention (A).
It is explanatory drawing and its (B) XX 'sectional drawing.
【図２】本発明の包装用フィルム１から得られる（Ａ）
三方シールされた二重袋６及び（Ｂ）背貼りシールされ
た二重袋６の説明図である。FIG. 2 is obtained from the packaging film 1 of the present invention (A).
It is explanatory drawing of the double bag 6 which carried out the three-way seal, and (B) the double bag 6 with which the back sticking was carried out.
１ 本発明の包装用フィルム ２ ガスバリヤー性を有するラミネートフィルム ３ 外装フィルム ４ 熱融着性物質 ５ 接着層 ６ 本発明の包装用フィルムから製造された二重
袋1 Packaging Film of the Present Invention 2 Laminated Film Having Gas Barrier Property 3 Exterior Film 4 Thermal Fusing Material 5 Adhesive Layer 6 Double Bag Made from the Packaging Film of the Present Invention
───────────────────────────────────────────────────── 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 Ｂ６５Ｄ 65/40 Ａ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location B65D 65/40 A
Claims (5)
ムの表面に外装フィルムが積層された包装用フィルムに
おいて、ラミネートフィルムと外装フィルムは少なくと
も両側端部を含む長手方向に平行な帯状の接着層を介し
て部分的に接着されており、更に、熱融着性物質がラミ
ネートフィルム表面と外装フィルムの間の所望の位置に
部分的に塗布されていることを特徴とする包装用フィル
ム。1. A packaging film in which an exterior film is laminated on the surface of a laminate film having a gas barrier property, wherein the laminate film and the exterior film are provided with a strip-shaped adhesive layer including at least both side ends and parallel to the longitudinal direction. A packaging film, which is partially adhered and further has a heat-fusible substance partially applied at a desired position between the surface of the laminate film and the exterior film.
宜間隔で塗布されていることを特徴とする請求項１記載
の包装用フィルム。2. The packaging film according to claim 1, wherein the heat-fusible substance is applied in a shape traversing the longitudinal direction at appropriate intervals.
間隔で帯状に塗布されていることを特徴とする請求項１
記載の包装用フィルム。3. The heat-fusible substance is applied in a band shape at an appropriate width and interval perpendicular to the longitudinal direction.
The packaging film described.
が押出ラミネート法又はドライラミネート法により行わ
れたものであることを特徴とする請求項１記載の包装用
フィルム。4. The packaging film according to claim 1, wherein the laminating film and the exterior film are adhered by an extrusion laminating method or a dry laminating method.
換包装又は脱酸素剤入り包装用フィルム。5. A film for gas replacement packaging or a packaging material containing an oxygen scavenger according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04072794A JP3442456B2 (en) | 1994-03-11 | 1994-03-11 | Packaging film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04072794A JP3442456B2 (en) | 1994-03-11 | 1994-03-11 | Packaging film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07246674A true JPH07246674A (en) | 1995-09-26 |
| JP3442456B2 JP3442456B2 (en) | 2003-09-02 |
Family
ID=12588660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04072794A Expired - Fee Related JP3442456B2 (en) | 1994-03-11 | 1994-03-11 | Packaging film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3442456B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5981028A (en) * | 1996-03-22 | 1999-11-09 | Asahi Chemical Polyflex Co., Ltd. | Film for multiple bag |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009102044A (en) * | 2007-10-24 | 2009-05-14 | Toppan Printing Co Ltd | Packaging bag |
-
1994
- 1994-03-11 JP JP04072794A patent/JP3442456B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5981028A (en) * | 1996-03-22 | 1999-11-09 | Asahi Chemical Polyflex Co., Ltd. | Film for multiple bag |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3442456B2 (en) | 2003-09-02 |
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