JPH07256829A - Laminated film and production thereof - Google Patents
Laminated film and production thereofInfo
- Publication number
- JPH07256829A JPH07256829A JP7547494A JP7547494A JPH07256829A JP H07256829 A JPH07256829 A JP H07256829A JP 7547494 A JP7547494 A JP 7547494A JP 7547494 A JP7547494 A JP 7547494A JP H07256829 A JPH07256829 A JP H07256829A
- Authority
- JP
- Japan
- Prior art keywords
- film
- base film
- laminated film
- laminated
- woven fabric
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 53
- 229920005989 resin Polymers 0.000 claims abstract description 34
- 239000011347 resin Substances 0.000 claims abstract description 34
- -1 polypropylene Polymers 0.000 claims abstract description 23
- 239000004743 Polypropylene Substances 0.000 claims abstract description 13
- 229920001155 polypropylene Polymers 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000004698 Polyethylene Substances 0.000 claims abstract description 9
- 229920000573 polyethylene Polymers 0.000 claims abstract description 9
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims description 27
- 239000005033 polyvinylidene chloride Substances 0.000 claims description 27
- 239000010410 layer Substances 0.000 claims description 20
- 239000002344 surface layer Substances 0.000 claims description 18
- 238000010030 laminating Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims 1
- 230000035699 permeability Effects 0.000 abstract description 5
- 229920000131 polyvinylidene Polymers 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 description 18
- 239000000853 adhesive Substances 0.000 description 17
- 239000000463 material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 229920000728 polyester Polymers 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003205 fragrance Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 235000008853 Zanthoxylum piperitum Nutrition 0.000 description 2
- 244000131415 Zanthoxylum piperitum Species 0.000 description 2
- 125000005396 acrylic acid ester group Chemical group 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000000077 insect repellent Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000009823 thermal lamination Methods 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 1
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005629 polypropylene homopolymer Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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、そのまま電子レンジで
加熱できる食品包装体の包装容器、又は防虫剤や芳香剤
の容器といった使用時に通気性を必要とする容器の蓋
体、或いは袋体に用いる積層フィルム、及びその製造方
法に関する発明である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging container for a food package which can be heated in a microwave oven as it is, or a lid or bag for a container such as a container of insect repellent or fragrance which needs air permeability when used. The present invention relates to a laminated film to be used and a manufacturing method thereof.
【０００２】[0002]
【従来の技術】従来、電子レンジ加熱食品としてレトル
トパック或いはプラスチック容器に収納した各種冷凍食
品、真空パック食品が知られている。これらの食品は加
熱時に内圧の上昇を防止するため、容器に通気性を持た
せた状態で加熱調理する必要がある。2. Description of the Related Art Conventionally, various frozen foods and vacuum-packed foods stored in a retort pack or a plastic container have been known as microwave oven-heated foods. In order to prevent the internal pressure from rising when heated, it is necessary to heat and cook these foods while the container is breathable.
【０００３】また、防虫剤や芳香剤は、薬品の昇華や香
料の揮発を利用しているため、使用時には通気性のある
容器に収納されている必要があるが、使用直前までは密
封されていなければならない。同様に、脱臭剤や吸湿剤
なども使用直前まで密封しておく必要がある。Insect repellents and fragrances use sublimation of chemicals and volatilization of fragrances, so they must be stored in a breathable container before use, but they are sealed until just before use. There must be. Similarly, it is necessary to seal the deodorant, the moisture absorbent and the like until just before use.
【０００４】上記のような容器や袋体に簡便に通気性を
持たせる手段として、特開平３−１７６１３１号公報
に、不織布とベースフィルムからなる積層フィルムが開
示されている。この積層フィルムは、不織布とベースフ
ィルムを弱く接着したものであり、該積層フィルムで容
器の蓋体や袋体を形成し、使用時にベースフィルムを剥
離することによって不織布を露出させ、通気性を与える
ものである。As a means for easily providing air permeability to the above-mentioned container or bag, Japanese Patent Laid-Open No. 3-176131 discloses a laminated film composed of a nonwoven fabric and a base film. This laminated film is one in which a non-woven fabric and a base film are weakly adhered to each other. The laminated film forms a lid or bag of a container, and the non-woven fabric is exposed by peeling off the base film at the time of use to provide air permeability. It is a thing.
【０００５】[0005]
【発明が解決しようとする課題】上記積層フィルムは、
具体的にはポリエステルやポリエチレン等からなる不織
布とベースフィルムとをポリプロピレン等ポリオレフィ
ンを介して押出ラミネートした積層体である。The above-mentioned laminated film is
Specifically, it is a laminate obtained by extrusion-laminating a non-woven fabric made of polyester or polyethylene and a base film via a polyolefin such as polypropylene.
【０００６】この積層フィルム自体の不織布とベースフ
ィルムとの接着性は弱く、容易に剥離することができる
が、該フィルムを用いて容器の蓋体を形成したり、袋体
を形成した場合、上記フィルムと容器、或いはフィルム
同士の熱封嵌工程において該熱封嵌部分で不織布とベー
スフィルムとが強力に接着され、ベースフィルムを剥離
することが困難になる、という問題があった。[0006] The non-woven fabric of the laminated film itself has a weak adhesive property to the base film and can be easily peeled off. However, when a lid of a container or a bag is formed using the film, the above In the heat-sealing step of the film and the container, or the films, there is a problem that the non-woven fabric and the base film are strongly adhered to each other at the heat-sealing portion, and it becomes difficult to peel the base film.
【０００７】本発明の目的は上記問題点を解決し、使用
が容易な袋体や容器蓋体を形成する積層フィルム、具体
的には熱封嵌後も剥離が容易で使用時に支障を来さない
積層フィルムを提供することにあり、同時に、該積層フ
ィルムの製造方法、更に詳しくは繁雑な工程や設計変更
を加えることなく容易に且つ安価に上記積層フィルムを
製造し得る製造方法を提供することにある。The object of the present invention is to solve the above problems and to provide a laminated film which forms an easy-to-use bag or container lid, more specifically, easy peeling even after heat sealing, which causes trouble during use. To provide a laminated film which is not present, and at the same time, to provide a method for producing the laminated film, more specifically, a production method capable of easily and inexpensively producing the laminated film without adding complicated steps and design changes. It is in.
【０００８】[0008]
【課題を解決するための手段】本発明の第１は、少なく
ともポリ塩化ビニリデン系樹脂層を有するベースフィル
ムと、該ポリ塩化ビニリデン系樹脂層に接する不織布層
とからなることを特徴とする積層フィルムである。本発
明は第２に上記積層フィルムの製造方法を提供するもの
であり、ベースフィルムと不織布とを積層し、該積層体
を不織布の熱封嵌温度以上、ベースフィルムの軟化温度
以下の温度で熱ラミネートすることを特徴とする。A first aspect of the present invention is a laminated film comprising a base film having at least a polyvinylidene chloride resin layer and a non-woven fabric layer in contact with the polyvinylidene chloride resin layer. Is. The present invention secondly provides a method for producing the above laminated film, which comprises laminating a base film and a non-woven fabric, and heating the laminate at a temperature not lower than the heat-sealing temperature of the non-woven fabric and not higher than the softening temperature of the base film. It is characterized by laminating.
【０００９】以下、本発明を詳細に説明する。The present invention will be described in detail below.
【００１０】本発明の積層フィルムを図１に示す。図中
１が本発明の積層フィルム、２が不織布層、３がポリ塩
化ビニリデン系樹脂層、４が表面層、５がベースフィル
ムである。図１（ａ）はベースフィルム５としてポリ塩
化ビニリデン系樹脂のみを用いたもので、（ｂ）はベー
スフィルムに表面層を設けたものである。図１に示す通
り、本発明において不織布層２とポリ塩化ビニリデン系
樹脂層３とは接着剤等を介さず直接接着されている。The laminated film of the present invention is shown in FIG. In the figure, 1 is a laminated film of the present invention, 2 is a nonwoven fabric layer, 3 is a polyvinylidene chloride resin layer, 4 is a surface layer, and 5 is a base film. FIG. 1A shows a base film 5 using only polyvinylidene chloride resin, and FIG. 1B shows a base film provided with a surface layer. As shown in FIG. 1, in the present invention, the non-woven fabric layer 2 and the polyvinylidene chloride-based resin layer 3 are directly adhered to each other without an adhesive or the like.
【００１１】本発明の積層フィルムは、ベースフィルム
のポリ塩化ビニリデン系樹脂層と不織布とを積層し、不
織布の熱封嵌温度以上でベースフィルムの軟化点以下の
温度で熱ラミネートして接着する。従って、ベースフィ
ルムの素材及び不織布の素材は、上記製造温度条件によ
って限定される。In the laminated film of the present invention, the polyvinylidene chloride resin layer of the base film and the non-woven fabric are laminated, and heat laminated at a temperature not lower than the heat-sealing temperature of the non-woven fabric and not higher than the softening point of the base film for adhesion. Therefore, the material of the base film and the material of the non-woven fabric are limited by the above manufacturing temperature conditions.
【００１２】本発明の積層フィルムにおいて用いられ
る、ポリ塩化ビニリデン系樹脂としては、モノマー成分
として塩化ビニリデンを含む共重合体或いは組成物が用
いられる。上記共重合体としては、塩化ビニリデンをモ
ノマー成分として５０％以上含有することがガスバリヤ
ー性の点から好ましく、更には８０％以上含有すること
が望ましい。共重合成分としては、塩化ビニル、アクリ
ル酸エステル、メタクリル酸エステル、アクリロニトリ
ルが挙げられ、中でも製膜性の点から塩化ビニル、アク
リル酸エステルが好ましく用いられる。As the polyvinylidene chloride resin used in the laminated film of the present invention, a copolymer or composition containing vinylidene chloride as a monomer component is used. The above copolymer preferably contains vinylidene chloride as a monomer component in an amount of 50% or more from the viewpoint of gas barrier property, and more preferably 80% or more. Examples of the copolymerization component include vinyl chloride, acrylic acid ester, methacrylic acid ester, and acrylonitrile. Among them, vinyl chloride and acrylic acid ester are preferably used from the viewpoint of film-forming property.
【００１３】また組成物としては、上記共重合体を適宜
組み合わせて用いることができる。Further, as the composition, the above copolymers can be appropriately combined and used.
【００１４】また更に、上記共重合体或いは組成物に熱
安定剤や光安定剤、滑剤等添加剤を適宜添加して用いる
こともできる。Further, additives such as a heat stabilizer, a light stabilizer and a lubricant may be appropriately added to the above copolymer or composition for use.
【００１５】本発明の積層フィルムに用いられる不織布
の素材としては、表面がポリエチレンポリプロピレン等
のものが挙げられ、好ましくは少なくとも表面層がポリ
エチレン系樹脂層からなり、ＨＤＰＥ、ＬＤＰＥ、ＬＬ
ＤＰＥ等の単一素材からなる不織布、又は芯がポリエス
テル、ナイロン等の耐熱素材で表面がポリエチレン系樹
脂からなる複合系で構成される不織布、が挙げられ、中
でもポリエステルとポリエチレンからなる複合系で構成
される不織布が好ましく用いられる。The material of the non-woven fabric used for the laminated film of the present invention includes those having a surface such as polyethylene polypropylene, preferably at least the surface layer comprising a polyethylene resin layer, and HDPE, LDPE, LL.
Examples include non-woven fabrics made of a single material such as DPE, or non-woven fabrics having a core made of a heat-resistant material such as polyester or nylon and made of a composite system made of polyethylene resin on the surface. Among them, a composite system made of polyester and polyethylene is used. The non-woven fabric is preferably used.
【００１６】更に本発明の積層フィルムのベースフィル
ムにおいては、ポリ塩化ビニリデン系樹脂層の外側に表
面層を有していても良い。該表面層の素材としては、ポ
リプロピレン、ナイロン６、ナイロン６，６、ポリエス
テル、エチレン−酢酸ビニル共重合体ケン化物、ポリ塩
化ビニル、アルミニウム箔から選ばれる１種からなる単
層フィルム、或いは２種以上からなる積層体が好ましく
用いられる。また、ポリプロピレン、ナイロン６、ナイ
ロン６，６、ポリエステル、エチレン−酢酸ビニル共重
合体ケン化物、ポリ塩化ビニルから選択される単層フィ
ルム或いは積層体に、アルミニウム或いは無機物を蒸着
させてなるフィルムも同様に好ましく用いられる。Further, the base film of the laminated film of the present invention may have a surface layer on the outside of the polyvinylidene chloride resin layer. As the material of the surface layer, a single layer film composed of one kind selected from polypropylene, nylon 6, nylon 6,6, polyester, saponified ethylene-vinyl acetate copolymer, polyvinyl chloride and aluminum foil, or two kinds A laminate having the above is preferably used. The same applies to a film obtained by vapor deposition of aluminum or an inorganic substance on a single-layer film or laminate selected from polypropylene, nylon 6, nylon 6,6, polyester, saponified ethylene-vinyl acetate copolymer, and polyvinyl chloride. It is preferably used for.
【００１７】中でも、比較的剛性があって、印刷等の加
工が容易で且つ安価な点から、ポリプロピレン、ナイロ
ン６、ポリエステルが好ましく用いられる。Of these, polypropylene, nylon 6, and polyester are preferably used because they have relatively high rigidity, are easy to process such as printing, and are inexpensive.
【００１８】本発明の積層フィルムにおいて好ましい素
材の組み合わせは、不織布としてポリエチレン系不織布
を用い、表面層として延伸ポリプロピレン、ポリテトラ
フルオロエチレン或いは延伸ナイロンのいずれかを用い
た組み合わせである。A preferred combination of materials in the laminated film of the present invention is a combination of polyethylene non-woven fabric as the non-woven fabric and stretched polypropylene, polytetrafluoroethylene or stretched nylon as the surface layer.
【００１９】またその好ましい厚みは、ベースフィルム
が１１〜８０μｍ、但し、表面層は１０〜５０μｍ、ポ
リ塩化ビニリデン系樹脂層は１〜３０μｍであり、積層
フィルムとしては、上記ベースフィルムに目付２０〜５
０ｇ／ｍ2 のポリエチレン系系不織布が積層された積層
品が好ましい。The preferable thickness of the base film is 11 to 80 μm, provided that the surface layer is 10 to 50 μm and the polyvinylidene chloride resin layer is 1 to 30 μm. 5
A laminated product in which 0 g / m 2 of polyethylene-based nonwoven fabric is laminated is preferable.
【００２０】本発明の積層フィルムにおいて、ベースフ
ィルムが表面層を有する場合、表面層とポリ塩化ビニリ
デン系樹脂層の積層方法に特に限定はなく、素材に応じ
て従来の技術を用いることができる。In the laminated film of the present invention, when the base film has a surface layer, the method for laminating the surface layer and the polyvinylidene chloride resin layer is not particularly limited, and a conventional technique can be used depending on the material.
【００２１】例えば、表面層となる樹脂フィルムにポリ
塩化ビニリデン系樹脂のエマルジョン或いは溶液を塗布
し、乾燥させる方法、或いは表面層の樹脂フィルムとポ
リ塩化ビニリデン系樹脂フィルムとを接着剤により接着
する方法、などが好ましく用いられる。For example, a method of coating an emulsion or solution of polyvinylidene chloride resin on a resin film to be the surface layer and drying it, or a method of adhering the resin film of the surface layer and the polyvinylidene chloride resin film with an adhesive. , And the like are preferably used.
【００２２】本発明の積層フィルムは、熱ラミネートに
よって接着されている。熱ラミネート方法としては、従
来用いられていた、加熱ロール内部に油や温水等の熱媒
体を循環する方式と、ロール自身が誘電発熱により昇温
する誘電加熱方式が用いられるが、均一な表面温度が得
られる点から誘電発熱方式が好ましく用いられる。The laminated film of the present invention is adhered by thermal lamination. As the thermal laminating method, conventionally used, a method of circulating a heat medium such as oil or hot water inside the heating roll, and a dielectric heating method in which the roll itself heats up by dielectric heat generation are used, but a uniform surface temperature is used. The dielectric heating method is preferably used from the viewpoint of obtaining
【００２３】本発明の積層フィルムのベースフィルムと
不織布との接着強度は好ましくは１０〜２００ｇ／１５
ｍｍ幅、好ましくは３０〜１００ｇ／１５ｍｍ幅であ
り、熱封嵌工程後もこの範囲を大きく超えることはな
い。尚、上記接着強度は、サンプル幅１５ｍｍ、１８０
°剥離、引張速度５００ｍｍ／分の剥離テストにより測
定される。The adhesive strength between the base film and the nonwoven fabric of the laminated film of the present invention is preferably 10 to 200 g / 15.
mm width, preferably 30 to 100 g / 15 mm width, and does not significantly exceed this range even after the heat sealing step. In addition, the above-mentioned adhesive strength is sample width 15 mm, 180
Peeling, tensile speed Measured by a peeling test of 500 mm / min.
【００２４】本発明の積層フィルムは、図２に示すよう
に、熱封嵌により袋体に形成したり（ａ）、或いは容器
の蓋体として容器に熱封嵌により接着される（ｂ）。更
に、図３、４に示されるように、ベースフィルム５に突
出部６を設けたり［図３（ａ）、図４（ａ）］或いは突
出部６を別に貼付したり［図３（ｂ）、図４（ｂ）］、
また切り欠き部７を不織布２、或いは不織布２と熱封嵌
された容器９に設ける［図３（ｃ）、図４（ｃ）］、表
面層に不織布との接着性に乏しい素材を用い、例えば端
部においてポリ塩化ビニリデン系樹脂層のない領域を形
成する（図５）ことにより、ベースフィルム５を不織布
２から剥離し易くすることが好ましい。As shown in FIG. 2, the laminated film of the present invention is formed into a bag by heat sealing (a), or is adhered to the container as a lid of the container by heat sealing (b). Further, as shown in FIGS. 3 and 4, a protrusion 6 may be provided on the base film 5 [FIGS. 3 (a) and 4 (a)], or the protrusion 6 may be attached separately [FIG. 3 (b)]. , FIG. 4 (b)],
Further, the cutout portion 7 is provided in the non-woven fabric 2 or the container 9 heat-sealed with the non-woven fabric 2 [FIG. 3 (c), FIG. 4 (c)], and the surface layer is made of a material having poor adhesion to the non-woven fabric, For example, it is preferable that the base film 5 be easily peeled from the non-woven fabric 2 by forming a region having no polyvinylidene chloride resin layer at the end (FIG. 5).
【００２５】[0025]
［実施例１］ベースフィルムとして、片面にポリ塩化ビ
ニリデン系樹脂をコートした２軸延伸ポリプロピレンフ
ィルム＃２０（商品名：セネシＫＯＰ，品番：ＥＧ１
０，ダイセル化学工業株式会社製）のＰＶＤＣコート面
と、芯がポリエステルで表面にポリエチレンを被覆した
目付３０ｇ／ｍ2 の不織布（商品名：エルベス，銘柄：
ＳＯ３０３ＷＤＯ，ユニチカ製）とを誘電加熱式熱ロー
ルを用い、温度１６０℃、速度１２ｍ／分で熱ラミネー
トした。得られた積層フィルムの不織布面同士を重ね合
わせ、１５０℃で３秒間熱封嵌した。ベースフィルムと
不織布の接着強度は、熱封嵌部以外では４０ｇ／１５ｍ
ｍ幅で熱封嵌部の接着強度は９０ｇ／１５ｍｍ幅で剥離
性、外観とも良好であった。[Example 1] As a base film, a biaxially stretched polypropylene film # 20 (trade name: Senesi KOP, product number: EG1) coated on one side with a polyvinylidene chloride resin
0, manufactured by Daicel Chemical Industries, Ltd., and a non-woven fabric with a basis weight of 30 g / m 2 in which the core is polyester and the surface is coated with polyethylene (trade name: Elves, brand:
SO303WDO, manufactured by Unitika Ltd.) was thermally laminated at a temperature of 160 ° C. and a speed of 12 m / min using a dielectric heating type hot roll. The non-woven fabric surfaces of the obtained laminated film were overlapped and heat-sealed at 150 ° C. for 3 seconds. The adhesive strength between the base film and the non-woven fabric is 40g / 15m except for the heat-sealed part.
The adhesive strength of the heat-sealed portion was 90 g / 15 mm width and the peelability and appearance were good.
【００２６】［実施例２］表面層としてホモタイプの２
軸延伸ポリプロピレンフィルム（厚さ２０μｍ，商品
名：サンオリエント，銘柄：ＰＢ−２６０，二村三昌
製）のコロナ処理面に、２液反応型ポリウレタン系ＡＣ
剤を部分塗布乾燥した後、ＡＣ剤塗布面にテトラヒドロ
フランとトルエンの混溶剤に溶解したポリ塩化ビニリデ
ン系樹脂（商品名：Ｆ−２１６，旭化成工業株式会社
製）を同様に部分塗布乾燥し、厚み２．５μｍのポリ塩
化ビニリデン系樹脂層がコートされたベースフィルムを
得た。Example 2 Homotype 2 was used as the surface layer.
On the corona-treated surface of the axially stretched polypropylene film (thickness 20 μm, product name: San Orient, brand name: PB-260, manufactured by Sansho Nimura), two-component reactive polyurethane AC
After partial coating and drying of the agent, polyvinylidene chloride resin (trade name: F-216, manufactured by Asahi Kasei Co., Ltd.) dissolved in a mixed solvent of tetrahydrofuran and toluene is partially coated and dried on the surface coated with the AC agent in the same manner. A base film coated with a 2.5 μm polyvinylidene chloride resin layer was obtained.
【００２７】実施例１と同じ不織布に同様にして熱ラミ
ネートし、不織布面同士を重ね合わせて熱封緘し、ポリ
塩化ビニリデン系樹脂層が部分的に塗布されていない三
方袋を得た。The same non-woven fabric as in Example 1 was heat-laminated in the same manner, the non-woven fabric faces were superposed and heat-sealed to obtain a three-sided bag in which the polyvinylidene chloride resin layer was not partially applied.
【００２８】得られた積層品のベースフィルムと不織布
との接着強度は熱封嵌部以外では５０ｇ／１５ｍｍ幅
で、熱封嵌部の接着強度は９０ｇ／１５ｍｍ幅で剥離
性、外観共に良好であった。またポリ塩化ビニリデン系
樹脂層がない部分のベースフィルムと不織布の接着強度
は１０ｇ／１５ｍｍ幅未満で、該部分から容易に剥離す
ることができた。The adhesive strength between the base film and the non-woven fabric of the obtained laminated product was 50 g / 15 mm width except the heat-sealed portion, and the adhesive strength of the heat-sealed portion was 90 g / 15 mm width, and the peelability and appearance were good. there were. Further, the adhesive strength between the base film and the non-woven fabric in the portion where the polyvinylidene chloride resin layer was not present was less than 10 g / 15 mm width, and it could be easily peeled from the portion.
【００２９】［実施例３］ベースフィルムとして片面に
ポリ塩化ビニリデン系樹脂をコートした２軸延伸ポリエ
ステルフィルム（商品名：エステルフィルムＫＥ，銘
柄：Ｅ８００２，東洋紡績株式会社製）、不織布として
目付４０ｇ／ｍ2 のポリエチレン不織布（商品名：ルク
サー，銘柄：Ｈ２０２０×Ｗ，旭化成工業株式会社製）
を用い、実施例１と同様に温度１６０℃、速度１０ｍ／
分で熱ラミネートした。[Example 3] A biaxially stretched polyester film (trade name: ester film KE, brand name: E8002, manufactured by Toyobo Co., Ltd.) having a polyvinylidene chloride resin coated on one side as a base film, and a basis weight of 40 g / m 2 polyethylene non-woven fabric (brand name: Luxer, brand name: H2020 × W, manufactured by Asahi Kasei Corporation)
In the same manner as in Example 1, using a temperature of 160 ° C. and a speed of 10 m /
Heat laminated in minutes.
【００３０】得られた積層フィルムの不織布面同士を重
ね合わせ、温度１５０℃、時間３秒で熱封嵌した。Nonwoven fabric surfaces of the obtained laminated film were superposed on each other and heat-sealed at a temperature of 150 ° C. for a time of 3 seconds.
【００３１】得られた積層品のベースフィルムと不織布
との接着強度は熱封嵌部以外では５０ｇ／１５ｍｍ幅、
熱封嵌部の接着強度は９５ｇ／１５ｍｍ幅で、剥離性、
外観共に良好であった。The adhesive strength between the base film and the non-woven fabric of the obtained laminated product was 50 g / 15 mm width except the heat-sealed portion,
Adhesive strength of the heat-sealed part is 95g / 15mm width, peelability,
The appearance was good.
【００３２】［実施例４］厚さ１５μｍの２軸延伸ナイ
ロンフィルムと厚さ１５μｍの２軸延伸ポリ塩化ビニリ
デン系樹脂フィルム（商品名：サランＵＢ，旭化成工
業）を通常の方法でドライラミネートしてベースフィル
ムとし、該ベースフィルムのポリ塩化ビニリデン系樹脂
面と実施例３で用いた不織布を温度１６０℃、速度１０
ｍ／分で熱ラミネートした。[Example 4] A biaxially stretched nylon film having a thickness of 15 µm and a biaxially stretched polyvinylidene chloride resin film having a thickness of 15 µm (trade name: Saran UB, Asahi Kasei Kogyo) were dry laminated by a usual method. As a base film, the polyvinylidene chloride resin surface of the base film and the nonwoven fabric used in Example 3 were used at a temperature of 160 ° C. and a speed of 10
Heat laminated at m / min.
【００３３】一方、ポリプロピレン（厚さ６８０μｍ）
／ポリ塩化ビニリデン系樹脂（厚さ２５μｍ）／ポリプ
ロピレン（厚さ５０μｍ）の積層シートを厚さ５０μｍ
のポリプロピレンが容器内側になるように、通常の真空
成形機で成形し、図２（ｂ）に示すようなゼリー容器を
形成した。On the other hand, polypropylene (thickness 680 μm)
/ Polyvinylidene chloride resin (thickness 25 μm) / Polypropylene (thickness 50 μm) laminated sheet with thickness 50 μm
Was molded by a normal vacuum forming machine so that the polypropylene in the container was inside the container to form a jelly container as shown in FIG. 2 (b).
【００３４】上記積層フィルムの不織布をシール面とし
て上記容器と温度１５５℃、時間３秒で熱封嵌した。The non-woven fabric of the laminated film was used as a sealing surface and heat-sealed with the container at a temperature of 155 ° C. for 3 seconds.
【００３５】積層品のベースフィルムと不織布の接着強
度は熱封嵌部以外で５０ｇ／１５ｍｍ幅、熱封嵌部で８
０ｇ／１５ｍｍ幅で剥離性、外観共に良好であった。The adhesive strength between the base film of the laminated product and the non-woven fabric is 50 g / 15 mm width other than the heat-sealed portion and 8 at the heat-sealed portion.
When the width was 0 g / 15 mm, both peelability and appearance were good.
【００３６】［比較例１］ベースフィルムとして２軸延
伸ホモポリプロピレン（厚さ２０μｍ，商品名：サンオ
リエント，銘柄：ＰＢ−２６０，二村三昌製）と実施例
１で用いた不織布を実施例１と同様の条件で熱ラミネー
トした。Comparative Example 1 Biaxially stretched homopolypropylene (thickness: 20 μm, trade name: San Orient, brand: PB-260, manufactured by Sansho Nimura) as a base film and the nonwoven fabric used in Example 1 were used. Thermal lamination was performed under the same conditions as above.
【００３７】得られた積層フィルムのベースフィルムと
不織布の接着強度は１０ｇ／１５ｍｍ幅未満と低く、取
扱時に容易に剥離してしまうため、実際の使用には耐え
なかった。The adhesive strength between the base film and the non-woven fabric of the obtained laminated film was as low as less than 10 g / 15 mm width, and it easily peeled off during handling, so that it could not be used in actual use.
【００３８】［比較例２］ベースフィルムとして２軸延
伸ポリプロピレン／ポリ塩化ビニリデン系樹脂／エチレ
ンプロピレン（エチレン３％）の共押出フィルム（厚さ
２４μｍ）のエチレンプロピレン面と実施例１で用いた
不織布を、温度１００℃、速度７ｍ／分で熱ラミネート
した。[Comparative Example 2] As a base film, a biaxially oriented polypropylene / polyvinylidene chloride resin / ethylene propylene (ethylene 3%) coextruded film (thickness: 24 μm) on the ethylene propylene side and the nonwoven fabric used in Example 1 Was thermally laminated at a temperature of 100 ° C. and a speed of 7 m / min.
【００３９】得られた積層フィルムの不織布面同士を重
ね合わせ、１５０℃、時間３秒で熱封嵌した。The non-woven fabric surfaces of the obtained laminated film were superposed on each other and heat-sealed at 150 ° C. for 3 seconds.
【００４０】得られた積層品のベースフィルムと不織布
の接着強度は、熱封嵌部で３０ｇ／１５ｍｍ幅で剥離
性、外観共良好であったが、熱封嵌部の剥離が困難でベ
ースフィルムが破断し、スムーズに全面のベースフィル
ムを剥離することができなかった。The adhesive strength between the base film and the non-woven fabric of the obtained laminated product was 30 g / 15 mm width in the heat-sealed part, and the peelability and appearance were good, but the heat-sealed part was difficult to peel and the base film Was broken and the base film on the entire surface could not be peeled off smoothly.
【００４１】[0041]
【発明の効果】本発明の積層フィルムは、不織布とベー
スフィルムとが適度な接着力で接着され、熱封嵌によっ
ても該接着力が大きく変化しないため、袋体や容器を形
成した後も容易に剥離することができる。INDUSTRIAL APPLICABILITY The laminated film of the present invention allows the non-woven fabric and the base film to be adhered to each other with an appropriate adhesive force, and the adhesive force does not change significantly even by heat sealing, so that it can be easily formed even after forming a bag or container. Can be peeled off.
【００４２】また、ベースフィルムの表面層の素材を選
択することにより、印刷等外観処理の自由度が広がる。
更に、ベースフィルムに突出部や切り欠き部、不織布と
の非接着部を設けることによりベースフィルムの剥離が
より容易になる。Further, by selecting the material of the surface layer of the base film, the degree of freedom in appearance processing such as printing is expanded.
Further, by providing the base film with the protruding portion, the cutout portion, and the non-adhesive portion with the non-woven fabric, the peeling of the base film becomes easier.
【００４３】本発明の製造方法は、上記積層フィルムを
繁雑な工程や設計を加えることなく従来の技術を用いて
容易に製造することができ、安価に工業生産することが
できる。According to the production method of the present invention, the above-mentioned laminated film can be easily produced by the conventional technique without adding complicated steps and designs, and can be industrially produced at low cost.
【図１】本発明の積層フィルムの断面図である。FIG. 1 is a cross-sectional view of a laminated film of the present invention.
【図２】本発明の積層フィルムを用いた袋体及び容器を
示す図である。FIG. 2 is a view showing a bag and a container using the laminated film of the present invention.
【図３】本発明の積層フィルムを用いた袋体を示す図で
ある。FIG. 3 is a view showing a bag body using the laminated film of the present invention.
【図４】本発明の積層フィルムを用いた容器を示す図で
ある。FIG. 4 is a view showing a container using the laminated film of the present invention.
【図５】本発明の積層フィルムを用いた袋体を示す図で
ある。FIG. 5 is a view showing a bag body using the laminated film of the present invention.
１ 積層フィルム ２ 不織布 ３ 塩化ビニリデン系樹脂層 ４ 表面層 ５ ベースフィルム ６ 突出部 ７ 熱封嵌部 ８ 切り欠き部 ９ 容器 DESCRIPTION OF SYMBOLS 1 Laminated film 2 Nonwoven fabric 3 Vinylidene chloride resin layer 4 Surface layer 5 Base film 6 Projection part 7 Heat-sealed part 8 Notch part 9 Container
Claims (5)
を有するベースフィルムと、該ポリ塩化ビニリデン系樹
脂層に接する不織布層とからなることを特徴とする積層
フィルム。1. A laminated film comprising a base film having at least a polyvinylidene chloride resin layer and a non-woven fabric layer in contact with the polyvinylidene chloride resin layer.
プロピレン樹脂からなることを特徴とする請求項１記載
の積層フィルム。2. The laminated film according to claim 1, wherein the surface layer of the non-woven fabric is made of polyethylene or polypropylene resin.
を特徴とする請求項１又は２に記載の積層フィルム。3. The laminated film according to claim 1, wherein the base film has a surface layer.
ィルムの製造方法であって、ベースフィルムと不織布と
を積層し、該積層体を不織布の熱封嵌温度以上、ベース
フィルムの軟化温度以下の温度で熱ラミネートすること
を特徴とする積層フィルムの製造方法。4. The method for producing a laminated film according to claim 1, wherein the base film and the non-woven fabric are laminated, and the laminate is softened at the heat sealing temperature of the non-woven fabric or higher. A method for producing a laminated film, which comprises thermally laminating at a temperature equal to or lower than a temperature.
デン系樹脂のエマルジョン、又はポリ塩化ビニリデン系
樹脂の有機溶剤溶液を塗布し乾燥させることによりベー
スフィルムを形成することを特徴とする請求項９記載の
積層フィルムの製造方法。5. The base film is formed by applying a polyvinylidene chloride-based resin emulsion or an organic solvent solution of a polyvinylidene chloride-based resin to the resin film of the surface layer and drying it. Of the laminated film of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7547494A JPH07256829A (en) | 1994-03-23 | 1994-03-23 | Laminated film and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7547494A JPH07256829A (en) | 1994-03-23 | 1994-03-23 | Laminated film and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07256829A true JPH07256829A (en) | 1995-10-09 |
Family
ID=13577343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7547494A Withdrawn JPH07256829A (en) | 1994-03-23 | 1994-03-23 | Laminated film and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07256829A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1134196A (en) * | 1997-07-16 | 1999-02-09 | Idemitsu Petrochem Co Ltd | Laminated sheet and food container for cooking in microwave oven |
| KR20040082147A (en) * | 2003-03-18 | 2004-09-24 | 주식회사 에스엠피테크닉스 | Polypropylene shopping bag and polypropylene sheet for shopping bag |
| JP2006231708A (en) * | 2005-02-24 | 2006-09-07 | J-Film Corp | LAMINATED LAMINATED FILM, METHOD FOR PRODUCING LAMINATED LAMINATED FILM, AND METHOD FOR PRODUCING EASILY-READ |
| JP2010120323A (en) * | 2008-11-21 | 2010-06-03 | Asahi Kasei Pax Corp | Laminate film for highly sublimable substance, packing bag using the same, roll, and method for manufacturing laminate film for highly sublimable substance |
| JP2011051600A (en) * | 2009-08-31 | 2011-03-17 | Yoshino Kogyosho Co Ltd | Synthetic resin-made container with label |
-
1994
- 1994-03-23 JP JP7547494A patent/JPH07256829A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1134196A (en) * | 1997-07-16 | 1999-02-09 | Idemitsu Petrochem Co Ltd | Laminated sheet and food container for cooking in microwave oven |
| KR20040082147A (en) * | 2003-03-18 | 2004-09-24 | 주식회사 에스엠피테크닉스 | Polypropylene shopping bag and polypropylene sheet for shopping bag |
| JP2006231708A (en) * | 2005-02-24 | 2006-09-07 | J-Film Corp | LAMINATED LAMINATED FILM, METHOD FOR PRODUCING LAMINATED LAMINATED FILM, AND METHOD FOR PRODUCING EASILY-READ |
| JP2010120323A (en) * | 2008-11-21 | 2010-06-03 | Asahi Kasei Pax Corp | Laminate film for highly sublimable substance, packing bag using the same, roll, and method for manufacturing laminate film for highly sublimable substance |
| JP2011051600A (en) * | 2009-08-31 | 2011-03-17 | Yoshino Kogyosho Co Ltd | Synthetic resin-made container with label |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20010605 |