WO1980002398A1 - Composite layered film - Google Patents

Composite layered film Download PDF

Info

Publication number
WO1980002398A1
WO1980002398A1 PCT/JP1980/000089 JP8000089W WO8002398A1 WO 1980002398 A1 WO1980002398 A1 WO 1980002398A1 JP 8000089 W JP8000089 W JP 8000089W WO 8002398 A1 WO8002398 A1 WO 8002398A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
water
oil
pores
resistant
Prior art date
Application number
PCT/JP1980/000089
Other languages
French (fr)
Japanese (ja)
Inventor
D Fujishima
S Fujishima
Original Assignee
D Fujishima
S Fujishima
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by D Fujishima, S Fujishima filed Critical D Fujishima
Publication of WO1980002398A1 publication Critical patent/WO1980002398A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard

Definitions

  • the present invention relates generally to composite laminate films or sheets, and more particularly, to composite laminate films or sheets that are permeable but not liquid permeable.
  • Plastic films are used in various fields, such as packaging, because of their excellent properties such as toughness, high water resistance, beautiful appearance, and hygiene.
  • the packaging material In the field of packaging, for example, when packaging respirable articles such as fruits and vegetables, the packaging material must be highly permeable to liquids and have good air permeability. Many. Pores can be provided in the plastic film to provide air permeability, but in this case, liquid permeability is also generated at the same time. Thus, there is a strong demand for a film sheet that is air permeable but has a high liquid permeability.
  • a plastic material is formed
  • a composite laminated film or sheet comprising a third layer formed of an adhesive material, having pores, and integrally provided on the second layer is provided.
  • the pores of the first and third layers are closed by the water-resistant and Z- or oil-resistant second layer.
  • Vv IPO Therefore, the liquid is prevented from penetrating therethrough, while the second layer has gas permeability so that gas can pass through the second layer between the pores of the first and third layers.
  • the plastic film is perforated to provide air permeability, and two sheets of the perforated film are provided.
  • a and B are overlapped with water and Z or oil resistant paper interposed between them, and pressed together so that the whole becomes an integrated sheet.
  • the pores of films A and B are waterproof and Z or
  • the present invention provides a method for providing air permeability to a plastic film, which is characterized by being blocked by oil-resistant paper surface, by blocking liquid permeability.
  • the first and third layers of the composite sheet of the present invention can be formed of any plastic material.
  • Polyolefins such as polyethylene, polypropylene and polybutadiene; polyesters such as polyethylene terephthalate; polyamides such as nylon 6, nylon 6,6, etc. , Polyvinyl chloride, polystyrene, and other polyvinyl compounds, and cellophane are examples of plastic materials.
  • their copolymers and blends are also applied, and further, their laminated films are also applied.
  • the thickness of the first and third layers is usually from 10 ⁇ to 500 0, preferably from 20 ⁇ to 100 0.
  • the pores of the first and third layers have a diameter of 0.01 to 2 baskets, and preferably about 0.05 to 1 basket. If the pore size is too large, the mechanical strength of the layer will decrease, and the surface area of the paper exposed to the outside through these pores will be too large, and the water resistance and oil resistance of the composite sheet will be too large. Decrease
  • the number of pores in the first and third layers is usually 1) to 500, preferably 1 to 100.
  • the first and third layers have air permeability, and the air permeability is controlled by the size and number of pores.
  • the second layer provided between the first and third layers is formed of a fibrous material.
  • a fibrous material Preferably, commercially available water and z or oil resistant paper or cloth is used.
  • various conventionally known ones including those having a water-repellent or oil-repellent surface are used.
  • water-resistant paper paraffin is used.
  • the oil-resistant paper there are sulfuric acid paper and pseudo-sulfuric acid paper fir.
  • sulfuric acid paper and pseudo-sulfuric acid paper are preferable ones having water resistance and oil resistance.
  • the thickness of the second layer is not particularly limited, and may be appropriately determined in consideration of mechanical strength and flexibility. In some cases, it can be 0.03 to 2 2.
  • the composite sheet of the present invention is preferably formed by stacking two plastic films provided with a predetermined amount of air permeability with a water-resistant and Z- or oil-resistant paper or cloth therebetween. It is manufactured by bonding and integrating the whole.
  • Other preferred manufacturing methods include plastic film without pores and water and / or oil resistant paper or cloth and plastic with or without pores. There is a method in which a sticky film is overlapped and the whole is integrally adhered, and then a predetermined hole is formed in a film having pores or in both films.
  • a normal laminating method is adopted as a bonding method between the respective layers.
  • layer 1 and layer 2 i may be laminated, or the first, second and third layers may be laminated simultaneously.
  • the gas permeability through the laminated film according to the present invention can be adjusted by the size and number of pores formed in the first and third layers, that is, the pore area ratio. .
  • A Film surface area S: Pore area
  • At least one of the first and third layers has a pore area ratio P of 5 or less, usually 0.1 to 2.
  • both surfaces of the laminated film or sheet material according to the present invention are formed of plastic, the bonding of the sheet materials is performed by heat-compression bonding so that air permeability and liquid impermeability are obtained. It can be done without damage.
  • the first and third layers are formed of plastic materials having different melting points.
  • a low-temperature hot-melt plastic such as polyethylene is used as the plastic material of the first layer that forms the inner surface.
  • a high-melting plastic for example, polypropylene, nylon, or polyester fruct as the material of the material.
  • the laminated film according to the present invention has air permeability, but its water permeability and Z or oil permeability are blocked.
  • the intermediate layer (second layer) is water-resistant or oil-resistant
  • the laminated film is water-impermeable or oil-impermeable, respectively, and D is water- and oil-resistant. It is impermeable to water and oil.
  • the impermeability of the laminated film depends on the properties of the intermediate layer; in this case, the impermeability of the laminated film depends on the surface processing of conventional paper. It is remarkable that cannot be achieved. For example, even if it is water-resistant paper, if it is immersed in water for a long time, it will penetrate water and generate a wet state; this is not the case with the laminated film according to the present invention.
  • the laminated film thus formed was used as a packaging material, and an oxygen scavenger (iron powder treated with dilute hydrochloric acid) was hermetically sealed with a heat sealer. After the oxygen-absorbing agent-encased body was placed in a closed space and left overnight, the oxygen concentration in the closed space was examined. As a result, it was confirmed that the oxygen concentration in the enclosed space decreased, and that the oxygen gas in the enclosed space entered the medicine package through the medicine packaging material and was fixed to the oxygen scavenger. After immersing the oxygen-absorbing body in water for one week, the inside of the body was examined, and no water was found inside.
  • an oxygen scavenger iron powder treated with dilute hydrochloric acid
  • the laminated film of the present invention is applied to water packaging of vegetables, fruits and the like that perform respiratory action, and is a gas-absorbing or gas-dissipating chemical agent such as an oxygen scavenger, a perfume, a fragrance, and a deodorant. Applied to waterproof packaging for desiccants. It is also useful as a rainproof material for portable raincoats.

Landscapes

  • Wrappers (AREA)
  • Laminated Bodies (AREA)
  • Packages (AREA)

Abstract

A three-layered composite film comprising two plastic films having fine pores, which films may be the same or different, and a gas-permeable, water- and/or oil-resistant fibrous material such as paraffin paper or parchment paper interposed between the two films. This layered film does not pass liquids but pass only gases therethrough, and is therefore adapted for use in water-proof wrapping of fresh vegetables and fruits and in water-proof wrapping of gas-liberating or gas-absorbing chemicals such as a anti-oxidant, perfume, deodorant, dessicant, etc.

Description

明 細 書  Specification
複合積層フ ィ ル ム  Composite laminated film
技術分野 Technical field
本発明は一般には複合積層フイ ルム又はシートに関し、 よ 詳 しくは通気性を有するが通液性の無い複合積層フイ ルム又はシ ー トに関する。  The present invention relates generally to composite laminate films or sheets, and more particularly, to composite laminate films or sheets that are permeable but not liquid permeable.
背景技術 Background art
プラスチ ック フ ィ ルムはその強靱、 高耐水性、 外観美麗、 衛生 的 どのすぐれた諸性質のため、 包装分野など様々 分野に応用 されている。 包装分野においては、 たとえば、 果実や野菜 ¾どの 呼吸する物品を包装する場合のように、 その包装材料としては通 液性が ¾く、 しかも通気性が良好であることが要求されるこ とが 多い。 プラ スチ ッ クフ ィ ルム に、 細孔を穿設することによ 通気 性を与えることができるが、 この場合、 同時に通液性も生じて.し ま う。 かくて、 通気性を有するが通液性の ¾いフ ィ ル ムゃシー ト が強く要望されている。  Plastic films are used in various fields, such as packaging, because of their excellent properties such as toughness, high water resistance, beautiful appearance, and hygiene. In the field of packaging, for example, when packaging respirable articles such as fruits and vegetables, the packaging material must be highly permeable to liquids and have good air permeability. Many. Pores can be provided in the plastic film to provide air permeability, but in this case, liquid permeability is also generated at the same time. Thus, there is a strong demand for a film sheet that is air permeable but has a high liquid permeability.
発明の開示 Disclosure of the invention
本発明によ 、 ブラスチック材料が形成され、 細孔を有する第 According to the present invention, a plastic material is formed,
1層と、 繊維質材料で形成され、 通気性を有し、 耐水及び Z又は 耐油性を有する第 2層であって、 第 1層上に一体的に設けられた 第 2層と、 及びプラスチ ッ ク材料で形成され、 細孔を有し、 第 2 層上に一体的に設けられた第 3層とを含む複合積層フ イ ルム又は シートが提供される。 A first layer, a second layer formed of a fibrous material, breathable, water and Z or oil resistant, and provided integrally on the first layer; and plastic. A composite laminated film or sheet comprising a third layer formed of an adhesive material, having pores, and integrally provided on the second layer is provided.
本発明の複合フ イ ルム又はシー トにお ては、 第 1及び第 3層 の細孔部は耐水及び Z又は耐油性の第 2層によ 閉塞されている  In the composite film or sheet of the present invention, the pores of the first and third layers are closed by the water-resistant and Z- or oil-resistant second layer.
Vv IPO i ため、 液体がそこを浸透することは阻止され、 一方第 2層は通気 性を有しているため気体は第 1及び第 3層の細孔部間を第 2層を 通って通過できる。 ' Vv IPO Therefore, the liquid is prevented from penetrating therethrough, while the second layer has gas permeability so that gas can pass through the second layer between the pores of the first and third layers. '
本発明の他のアスペク ト において、 ブラスチ ック フ ィ ルムに細 孔を穿設して通気性を与えるとともに、 この穿孔フ イ ルムの 2枚 In another aspect of the present invention, the plastic film is perforated to provide air permeability, and two sheets of the perforated film are provided.
A , Bをその間に耐水及び Z又は耐油性紙を介在させて重ね、 全 体が一体のシ一卜になるよ うに圧着して、 フ ィ ルム A ， Bの細孔 部を耐水及び Z又は耐油性紙の表面によ ]?閉塞させることを特徵 とするプラ スチ ッ ク フ ィ ルムに通液性を遮断して通気性を付与す る方法が提供される。 A and B are overlapped with water and Z or oil resistant paper interposed between them, and pressed together so that the whole becomes an integrated sheet. The pores of films A and B are waterproof and Z or The present invention provides a method for providing air permeability to a plastic film, which is characterized by being blocked by oil-resistant paper surface, by blocking liquid permeability.
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
本発明の複合シ―トの第 1及び第 3層はいかるるプ ラスチ ッ ク 材料でも形成できる。 ポ リ エチレン、 ボリプ ロ ピレ ン、 ポリ ブタ ジェンなどのポ リ オ レフ イ ン、 ポ リ エチレンテレ フタ レー ト ¾ど のポ リ エステル、 ナイ ロ ン 6、 ナイ ロ ン 6 ， 6などのポリ アミ ド、 ボリ塩化ビニル、 ポ リ スチレン ¾どのポリ ビ二ル化合物、 さらに セ ロハン るどをプラスチック材料の例と して挙げることができる。 又、 前記重合体の他、 それらの共重合体、 プレン ド¾ども適用さ れ、 さらに、 それらのラ ミネー ト フ ィ ルム も適用される。 第 1及 び第 3層の厚さは、 通常 1 0 ί〜 5 0 0 ίΐ、 好ま しくは 2 0 〜 ； 1 0 0 である。  The first and third layers of the composite sheet of the present invention can be formed of any plastic material. Polyolefins such as polyethylene, polypropylene and polybutadiene; polyesters such as polyethylene terephthalate; polyamides such as nylon 6, nylon 6,6, etc. , Polyvinyl chloride, polystyrene, and other polyvinyl compounds, and cellophane are examples of plastic materials. In addition to the above-mentioned polymers, their copolymers and blends are also applied, and further, their laminated films are also applied. The thickness of the first and third layers is usually from 10ί to 500 0, preferably from 20〜 to 100 0.
第 1及び第 3層の細孔は直径 0.0 1 丽〜 2 籠、 好ま しくは 0.0 5 籠〜 1 丽程度である。 孔寸法は、 これが余 大き く るると、 層の 機械的強度が低下し、 またこの細孔部を通して外部へ露出する紙 の表面積が大き くな i?すぎ、 複合シ一トの耐水、 耐油性が低下す  The pores of the first and third layers have a diameter of 0.01 to 2 baskets, and preferably about 0.05 to 1 basket. If the pore size is too large, the mechanical strength of the layer will decrease, and the surface area of the paper exposed to the outside through these pores will be too large, and the water resistance and oil resistance of the composite sheet will be too large. Decrease
/ O\:PI るので、 2丽以下にするのがよい。 第 1及び第 3層の細孔の ¾は、 通常、 当 ]) 1〜5 0 0個、 好ま しくは 1〜 1 0 0個である。 この よ うに第 1及び第 3層は通気性を有し、 その通気性は細孔の寸法 と数によつて調.節される。 / O \: PI Therefore, it is better to make it 2 mm or less. The number of pores in the first and third layers is usually 1) to 500, preferably 1 to 100. Thus, the first and third layers have air permeability, and the air permeability is controlled by the size and number of pores.
第 1及び第 3層間に設けられる第 2層は繊維質物質で形成され る。 好ま しくは市販の耐水及び z又は耐油性紙、 も しくは布が用 いられる。 耐水及び Z又は耐油性紙も しくは布としては、 表面を 撥水又は撥油加工したものを含む従来公知の種々のものが用いら れ、 たとえば、 耐水性紙と しては、 パ ラ フ ィ ン紙、 油紙、 ァス フ ア ル ト紙、 渋紙、 純白、 印刷紙及び合成紙 どがあ i 耐油性紙 と しては、 硫酸紙、 擬硫酸紙るどがある。 殊に、 硫酸紙、 擬硫酸 紙は耐水性及び耐油性を有する好ま しいものである。 第 2層の厚 さは特に制約されず、 機械的強度、 柔軟性 ¾どを考慮して適当に 決められるカ^ 通常 0. 0 5〜 1 籠である。 場合により 0.0 3 〜2 娜 とすることもできる。  The second layer provided between the first and third layers is formed of a fibrous material. Preferably, commercially available water and z or oil resistant paper or cloth is used. As the water-resistant and Z- or oil-resistant paper or cloth, various conventionally known ones including those having a water-repellent or oil-repellent surface are used. For example, as water-resistant paper, paraffin is used. Ink paper, oil paper, asphalt paper, astringent paper, pure white, printing paper, synthetic paper, etc. i As the oil-resistant paper, there are sulfuric acid paper and pseudo-sulfuric acid paper fir. In particular, sulfuric acid paper and pseudo-sulfuric acid paper are preferable ones having water resistance and oil resistance. The thickness of the second layer is not particularly limited, and may be appropriately determined in consideration of mechanical strength and flexibility. In some cases, it can be 0.03 to 2 2.
本発明の複合シートは、 好ま しくは、 所定量の通気性が付与さ れたブラスチックフ ィ ル ムを 2枚、 それらの間に耐水及び Z又は 耐油性紙も しくは布をはさんで重ね、 全体を接着して一体化する ことによ 製造される。 他の好ま しい製造方法と しては、 先ず細 孔の無いプ ラスチ ッ ク フ ィ ル ムと耐水及び/又は耐油性紙も しく は布と及び細孔を設けたも しくは設けていないプラ スチックフ ィ ル ムとを重ねて全体を一体的に接着し、 次に細孔を有しるぃ フ ィ ル ム又は両フ ィ ル ムに所定の細孔を穿設する方法がある。 いずれ の製造方法においても、 各層間の接着方法と しては通常のラ ミネ 一 ト法が採用される。 初めに第 1層と第 2層を積層し次
Figure imgf000005_0001
i を積層 しても、 第 1 、 第 2及び第 3層を同時に積層しても よい。 本発明による積層フ ィ ルムを通してのガス透過性は、 第 1及び. 第 3層に形成する孔部の寸法と数、 するわち、 細孔面積率によ つ て調節するこ とができ る。 The composite sheet of the present invention is preferably formed by stacking two plastic films provided with a predetermined amount of air permeability with a water-resistant and Z- or oil-resistant paper or cloth therebetween. It is manufactured by bonding and integrating the whole. Other preferred manufacturing methods include plastic film without pores and water and / or oil resistant paper or cloth and plastic with or without pores. There is a method in which a sticky film is overlapped and the whole is integrally adhered, and then a predetermined hole is formed in a film having pores or in both films. In any of the manufacturing methods, a normal laminating method is adopted as a bonding method between the respective layers. First, layer 1 and layer 2
Figure imgf000005_0001
i may be laminated, or the first, second and third layers may be laminated simultaneously. The gas permeability through the laminated film according to the present invention can be adjusted by the size and number of pores formed in the first and third layers, that is, the pore area ratio. .
S X m S X m
P == X 1 0 0 W  P == X 1 0 0 W
A  A
P ：細孔面積率 P: Pore area ratio
A ： フ ィ ルム表面積 S ：細孔面積  A: Film surface area S: Pore area
m ： フ ィ ルム表面中に存在する細孔数  m: Number of pores existing on the film surface
通気性の著しく制限された積層フ ィ ルムを得る場合、 第 1及び第 3層の少なく とも一方の細孔面積率 Pを 5 以下、 通常 0. 1〜 2 にするのがよい。  In order to obtain a laminated film whose air permeability is extremely restricted, it is preferable that at least one of the first and third layers has a pore area ratio P of 5 or less, usually 0.1 to 2.
本発明による積層フ ィ ルム又はシー ト材料は、 両表面がプラス チッ クで形成されている為、 シー ト材料同志の接合は、 熱圧着す るこ とによ 通気性及び非通液性を損う こ と く行える。 この場 合、 第 1及び第 3層を異なる溶融点を有するプラスチ ッ ク材料に よ 形成するこ とが好ま しい。 たとえば積層フ ィ ルムの袋の場合、 内表面を形成する第 1層のプラスチック材料と して低温熱溶融性 プラスチッ ク、 たとえば、 ポ リ エチレンを用い、 外表面 ¾形成す る第 3層プラスチ ック材料と して高温溶融性ブラスチック、 たと えば、 ポリ プロ ピレン、 ナイ ロ ン 、 ポリ エステルるどを用いるの がよい。 熱シ ール器で袋の開口部を閉じる場合、 第 1 層の溶融点 以上第 2層の溶融点以下の温度でシールを行うことによ ]?、 袋の 外表面の美観を損うこ と く シールすることができる。  Since both surfaces of the laminated film or sheet material according to the present invention are formed of plastic, the bonding of the sheet materials is performed by heat-compression bonding so that air permeability and liquid impermeability are obtained. It can be done without damage. In this case, it is preferable that the first and third layers are formed of plastic materials having different melting points. For example, in the case of a laminated film bag, a low-temperature hot-melt plastic such as polyethylene is used as the plastic material of the first layer that forms the inner surface. It is preferable to use a high-melting plastic, for example, polypropylene, nylon, or polyester fruct as the material of the material. When closing the opening of the bag with a heat sealer, it is necessary to seal at a temperature between the melting point of the first layer and the melting point of the second layer and below. It can be sealed.
_ΟΜΡΙ _ このよ う に、 本発明による積層フ ィ ル ムは、 通気性を有するが、 その通水性及び Z又は通油性は遮断されたものである。 中間層 （ 第 2層）が耐水性又は耐油性のものであれば、 積層フ イ ル ムはそ れぞれ非通水性又は非通油性のものであ D、 そして耐水耐油性の ものであれば、 水及び油に対して非通液性のものである。 このよ うに、 積層フ ィ ル ムの非通液性は中間層の性状に依存する力；、 こ の場合、 積層フ ィ ルム の非通液性は、 従来の紙をいかに表面加工 しても達成するこ とのでき い顕著なものである。 たとえば、 耐 水紙であっても、 長時間水に浸漬しておく と水を浸透させて濡れ た状態が生じる力;、 本発明による積層フィルムの場合はこのよ う ことは い。 _ΟΜΡΙ _ Thus, the laminated film according to the present invention has air permeability, but its water permeability and Z or oil permeability are blocked. If the intermediate layer (second layer) is water-resistant or oil-resistant, the laminated film is water-impermeable or oil-impermeable, respectively, and D is water- and oil-resistant. It is impermeable to water and oil. As described above, the impermeability of the laminated film depends on the properties of the intermediate layer; in this case, the impermeability of the laminated film depends on the surface processing of conventional paper. It is remarkable that cannot be achieved. For example, even if it is water-resistant paper, if it is immersed in water for a long time, it will penetrate water and generate a wet state; this is not the case with the laminated film according to the present invention.
以下の実施例は本発明をさらに詳細に説明するであろう。  The following examples will illustrate the invention in more detail.
実施例 1  Example 1
約 0. 3 籠の細孔を約 6 5個 ZCJT!穿設したポリ エチ レン フ イ ルム と、 約 0. 5 籠の細孔を 1 3個/ 1 0 ^穿設したポリプ ロ ピレン フ イ ルムとを硫酸紙を介して積層接着した。  Approximately 0.3 cages with about 65 pores ZCJT! Polyethylene film perforated, and about 0.5 baskets with 13/10 ^ pores perforated polypropylene And laminated with a parchment paper.
次に、 このよ うにして形成した積層フ ィ ルムを藥包材と して脱 酸素剤 （希塩酸処理した鉄粉） を熱シ ール器によ 密封被包した。 この脱酸素剤被包体を密閉空間中に入れて一昼夜放置した後、 そ の密閉空間中の酸素濃度を調べた。 その結果、 密閉空間中の酸素 濃度は減少し、 薬包材を通して密閉空間内の酸素ガスが薬包内に 進入し、 脱酸素剤に固定化されたこ とが確認された。 また、 この 脱酸素剤被包体を水中に 1週間没入させた後、 その内部を調べた ところ、 内部には水の進入は何ら見られなかった。  Next, the laminated film thus formed was used as a packaging material, and an oxygen scavenger (iron powder treated with dilute hydrochloric acid) was hermetically sealed with a heat sealer. After the oxygen-absorbing agent-encased body was placed in a closed space and left overnight, the oxygen concentration in the closed space was examined. As a result, it was confirmed that the oxygen concentration in the enclosed space decreased, and that the oxygen gas in the enclosed space entered the medicine package through the medicine packaging material and was fixed to the oxygen scavenger. After immersing the oxygen-absorbing body in water for one week, the inside of the body was examined, and no water was found inside.
産業上の利用可能 ' 本発明の積層フ ィ ル ムは、 呼吸作用を行う野菜、 果実などの^ 水包装に適用され、 また、 ガス吸収性又はガス発散性の化学薬剤- たとえば脱酸素剤、 香水、 香料、 脱臭剤、 乾燥剤の防水包装に適 用される。 また、 携帯用のレ イ ン コ ー ト などの防雨用材料と して も有用である。 Industrial availability '' The laminated film of the present invention is applied to water packaging of vegetables, fruits and the like that perform respiratory action, and is a gas-absorbing or gas-dissipating chemical agent such as an oxygen scavenger, a perfume, a fragrance, and a deodorant. Applied to waterproof packaging for desiccants. It is also useful as a rainproof material for portable raincoats.

Claims

(フ） (F)
請 求 の 範 囲  The scope of the claims
1ノ プラスチック材料で形成され、 細孔を有する第 1層と ；繊維 質材料で形成され、 通気性を有し、 耐水及び Z又は耐油性を有 する第 2層であって、 第 1層上に一体的に設けられた第 2層と ； 及びプラスチッ ク材料で形成され、 細孔を有し、 第 2層上に 一体的に設けられた第 3層とを包含する、 複合積層フ ィ ル ム。 (1) a first layer formed of a plastic material and having pores; a second layer formed of a fibrous material and having air permeability and having water resistance and Z or oil resistance, on the first layer And a second layer integrally formed on the second layer; and a third layer formed of a plastic material, having pores, and integrally formed on the second layer. M
2. 第 1層及び第 3層が同一のプラスチック材料で形成された、 請求の範囲第 1項記載の複合積層フイ ル ム。  2. The composite laminated film according to claim 1, wherein the first layer and the third layer are formed of the same plastic material.
3. 第 1層が低温溶融性プラスチッ クで形成され、 第 3層が高温 溶融性プラスチッ クで形成された、 請求の範囲第 1項記載の複 合積層フ ィ ルム。  3. The composite laminated film according to claim 1, wherein the first layer is formed of a low-melting plastic, and the third layer is formed of a high-melting plastic.
4. 第 1層及び第 3層は、 孔径 0.0 0 1〜 2卿の細孔を 1 当 1 〜 5 0 0個有し、 1 0〜 5 0 0 の厚さを有する請求の範囲第 1 項〜第 3項のいずれかに記載の複合積層フイ ルム。  4. The first layer and the third layer according to claim 1, wherein the first layer and the third layer each have 1 to 500 pores having a pore diameter of 0.01 to 2 and a thickness of 10 to 500. 4. The composite laminated film according to any one of items 3 to 3.
5. 第 2層が耐水及び Z又は耐油性紙である請求の範囲第 4項記 载の複合積層フ ィ ルム。  5. The composite laminated film according to claim 4, wherein the second layer is water-resistant and Z- or oil-resistant paper.
6. プラスチ ッ クブ イ ルムに細孔を穿設して通気性を与えるとと もに、 この穿孔フ ィ ル ムの 2枚 A ， Bをその間に耐水及び Z又 は耐油性紙を介在させて重ね、 全体が一体のシー トになるよ う に圧着して、 フ ィ ルム A ， Bの細孔部を耐水及び Z又は耐油性 紙の表面によ 閉塞させるこ とを特徴とするプラスチックフ ィ ルムに通液性を遮断して通気性を付与する方法。  6. Perforations are made in the plastic film to provide air permeability, and two sheets A and B of this perforated film are interposed between them with water-resistant and Z- or oil-resistant paper. Plastic films, characterized in that the pores of films A and B are closed by water-resistant and Z- or oil-resistant paper surfaces. A method of blocking the liquid permeability of a film to give it air permeability.
PCT/JP1980/000089 1979-04-26 1980-04-26 Composite layered film WO1980002398A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP54051706A JPS6037791B2 (en) 1979-04-26 1979-04-26 A method of blocking liquid permeability to a plastic film and imparting only breathability to it
JP79/51706 1979-04-26

Publications (1)

Publication Number Publication Date
WO1980002398A1 true WO1980002398A1 (en) 1980-11-14

Family

ID=12894332

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1980/000089 WO1980002398A1 (en) 1979-04-26 1980-04-26 Composite layered film

Country Status (2)

Country Link
JP (1) JPS6037791B2 (en)
WO (1) WO1980002398A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001212920A (en) * 2000-01-31 2001-08-07 Toppan Printing Co Ltd Packing material, packaging bag, packaging container lid and packaging container
JP5382500B2 (en) * 2008-11-28 2014-01-08 パウダーテック株式会社 Oxygen absorber package
JP2011073744A (en) * 2009-09-30 2011-04-14 Mitsubishi Gas Chemical Co Inc Oilproof deoxidizing agent packaging material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4993984U (en) * 1972-12-07 1974-08-14
JPS5064659U (en) * 1973-10-15 1975-06-11
JPS50107768U (en) * 1974-02-15 1975-09-03
JPS545345Y2 (en) * 1972-03-22 1979-03-08

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5350065A (en) * 1976-10-18 1978-05-08 Fujishima Daishiro Method of controlling reaction speed of deoxidizing agent
JPS5351096A (en) * 1976-10-18 1978-05-10 Fujishima Daishiro Packing material of adjusted air permeability

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS545345Y2 (en) * 1972-03-22 1979-03-08
JPS4993984U (en) * 1972-12-07 1974-08-14
JPS5064659U (en) * 1973-10-15 1975-06-11
JPS50107768U (en) * 1974-02-15 1975-09-03

Also Published As

Publication number Publication date
JPS55142649A (en) 1980-11-07
JPS6037791B2 (en) 1985-08-28

Similar Documents

Publication Publication Date Title
EP0184415B1 (en) Evacuated heat insulation unit
JP2782727B2 (en) Film oxygen absorber
JPS6254705B2 (en)
JPS60141544A (en) Laminate
US20140335347A1 (en) Selectively permeable chemical protective films and composite fabrics
WO1980002398A1 (en) Composite layered film
JP5174476B2 (en) Alcohol volatilizer
JP2001354274A (en) Moisture permeable and waterproof packaging material and package body
JPH03229610A (en) Sealing bag for adsorbent
JP5047678B2 (en) Packaging material having aluminum vapor deposition film and packaging bag using the same
JPH0826332A (en) Packaging film for fine powder and bag body using said film
JPH0745222B2 (en) Breathable packaging material and freshness preservative packaging
JP4513253B2 (en) Removable lid
JP5382500B2 (en) Oxygen absorber package
JPS6255820B2 (en)
JP2002284216A (en) Lid with deoxidizing function
JPS5882747A (en) Packing material, gas permeability thereof is adjusted
JP3111574B2 (en) Oxygen absorber package
JP3633651B2 (en) Oxygen absorber packaging material
JP2010189025A (en) Deoxidizer package
JP3033259B2 (en) Oxygen absorber package
JPH0480031A (en) Coated plastic film
JPS636066Y2 (en)
JP2890633B2 (en) Oxygen absorber package
JP2961796B2 (en) Oxygen absorber package

Legal Events

Date Code Title Description
AK Designated states

Designated state(s): US

AL Designated countries for regional patents

Designated state(s): DE FR GB NL