JP2003201674A - Waterproof fabric and method of producing the same - Google Patents
Waterproof fabric and method of producing the sameInfo
- Publication number
- JP2003201674A JP2003201674A JP2002000377A JP2002000377A JP2003201674A JP 2003201674 A JP2003201674 A JP 2003201674A JP 2002000377 A JP2002000377 A JP 2002000377A JP 2002000377 A JP2002000377 A JP 2002000377A JP 2003201674 A JP2003201674 A JP 2003201674A
- Authority
- JP
- Japan
- Prior art keywords
- peea
- peeb
- layer
- weight
- 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.)
- Granted
Links
Landscapes
- Laminated Bodies (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は防水布帛に関する。
より詳しくは、テント用布帛として好適であり、基布表
面に熱可塑性ポリエーテル−エステル系エラストマーか
らなる被覆層が形成された、高い耐水圧を有する防水布
帛に関するものである。TECHNICAL FIELD The present invention relates to a waterproof fabric.
More specifically, the present invention relates to a waterproof fabric having a high water pressure resistance, which is suitable as a fabric for tents and has a coating layer formed of a thermoplastic polyether-ester elastomer on the surface of a base fabric.
【0002】[0002]
【従来の技術】従来より、テント用布帛においては、雨
がテント内に入ることを防ぐ機能(防水性)が必要とさ
れている。一般に、基布の繊維組織だけで満足な防水性
を得ることが難しいため、繊維材料からなる基布の片側
表面に、ポリテトラフルオロエチレンやポリウレタン系
エラストマーなどからなるフィルムをラミネートする方
法、または、ポリウレタン系エラストマーなどをコーテ
イングする方法などが採用されてきた。2. Description of the Related Art Conventionally, fabrics for tents have been required to have a function (waterproofness) of preventing rain from entering the tents. In general, it is difficult to obtain satisfactory waterproofness only by the fiber structure of the base fabric, therefore, on one surface of the base fabric made of a fiber material, a method of laminating a film made of polytetrafluoroethylene or a polyurethane elastomer, or Methods such as coating with polyurethane-based elastomers have been adopted.
【0003】しかしながら、このようにして得られたテ
ント用布帛は、廃棄されて燃焼される際、使用される樹
脂が人体に対して毒性のあるガスを発生するなどの環境
問題を有していた。However, the tent cloth thus obtained has an environmental problem such that the resin used generates a gas that is toxic to the human body when it is discarded and burned. .
【0004】一方、例えば特開2000−290878
号公報などのように、ポリエチレングリコールを多く含
有するポリエーテル−エステル系エラストマー(PE
E)で基布の表面を被覆することが提案されている。On the other hand, for example, Japanese Patent Laid-Open No. 2000-290878.
Polyether-ester based elastomers containing a large amount of polyethylene glycol (PE
It has been proposed to coat the surface of the base fabric with E).
【0005】しかるに、かかる防水布帛では、廃棄され
て燃焼される際、人体に対して毒性のあるガスを発生す
ることがないものの、布帛の軽量化をはかるために被覆
層の厚さを薄くすると、ポリエチレングリコールを多く
含むPEEが薄膜での皮膜強度が不十分なため高い耐水
圧が得られず、テント用布帛などの用途には不適であっ
た。However, when such a waterproof cloth is discarded and burned, it does not generate a gas that is toxic to the human body, but the thickness of the coating layer is reduced in order to reduce the weight of the cloth. Since PEE containing a large amount of polyethylene glycol has insufficient film strength as a thin film, high water pressure resistance cannot be obtained, and it is not suitable for applications such as tent cloth.
【0006】このような理由から、廃棄されて燃焼され
る際、使用される樹脂が人体に対して毒性のあるガスを
発生することなく、被覆層の厚みが薄くても高い耐水圧
が得られる防水布帛の提案が切望されている。For this reason, when discarded and burned, the resin used does not generate a gas that is toxic to the human body, and a high water pressure resistance can be obtained even if the coating layer is thin. Proposals for waterproof fabrics have been earnestly desired.
【0007】[0007]
【発明が解決しようとする課題】本発明は、前記従来技
術の問題を解消するためになされたものであり、その課
題は、廃棄されて燃焼される際、使用される樹脂が人体
に対して毒性のあるガスを発生することなく、被覆層の
厚みが薄くても高い耐水圧を有する、テント用布帛とし
て好適な防水布帛及びその製造方法を提供することにあ
る。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art. The problem is that the resin used when it is discarded and burned is harmful to the human body. It is an object of the present invention to provide a waterproof fabric suitable for a tent fabric, which does not generate a toxic gas and has a high water pressure resistance even when the coating layer is thin, and a method for producing the same.
【0008】[0008]
【課題を解決するための手段】本発明者は、上記の課題
を達成するため鋭意検討した結果、繊維材料からなる基
布の少なくとも1表面に、所定の組成及び物性を有する
ポリエーテル−エステル系エラストマー(PEE)を2
層構造で被覆することにより、薄膜でも高い耐水圧を有
する防水布帛が得られることを知り、本発明を完成する
に至った。Means for Solving the Problems As a result of intensive studies for achieving the above-mentioned object, the present inventor has found that at least one surface of a base fabric made of a fiber material has a polyether-ester system having a predetermined composition and physical properties. 2 elastomers (PEE)
It was found that a waterproof fabric having a high water pressure resistance can be obtained by coating with a layered structure, and the present invention has been completed.
【0009】かくして、本発明によれば、「繊維材料か
らなる基布の少なくとも1表面に、ポリアルキレングリ
コール残基(PAG)、アルキレングリコール残基(A
G)、およびジカルボン酸残基(DC)からなるポリエ
ーテル−エステル系エラストマー(PEE)が被覆され
た防水布帛であって、該被覆層が2層構造を有し、かつ
基布に接する層を形成するPEE(PEEA)と外気側
の層を形成するPEE(PEEB)が下記(a)〜
(e)の要件を同時に満足することを特徴とする防水布
帛。」
(a)PEEAおよびPEEBにおいて、PAGがとも
にポリテトラメチレングリコール残基を90重量%以上
含んでいること。
(b)PEEBの融点が130℃以上であること。
(c)PEEAの融点がPEEBの融点より20℃以上
低いこと。
(d)PEEAからなる層の厚さとPEEBからなる層
の厚さの合計が、5〜50μmの範囲にあること。
(e)全被覆層中に占めるPEEAの割合が、5〜60
重量%の範囲にあること。ならびに、「有機溶剤に、P
AG、AGおよびDCからなるポリエーテル−エステル
系エラストマー(PEEA)を、有機溶剤の重量に対し
て、2〜30重量%溶解させた溶液を準備し、該溶液を
繊維材料からなる基布の少なくとも1表面に、0.5〜
20g/m2の量でコートした後、有機溶剤を除去して
基布の表面にPEEAからなる層を形成する工程と、有
機溶剤に、PAG、AGおよびDCからなる、ポリエー
テル−エステル系エラストマー(PEEB)を、有機溶
剤の重量に対して、2〜30重量%溶解させた溶液を準
備し、該溶液を前記PEEAからなる層の上に5〜30
g/m2の量でコートした後、有機溶剤を除去すること
によりPEEAからなる層の上にPEEBからなる層を
積層する工程を含むことを特徴とする防水布帛の製造方
法。」が提供される。そして、かかる防水布帛の製造方
法において基布の少なくとも1表面に、PEEAからな
る層とPEEBからなる層を形成したのち、PEEAか
らなる層のみを熱溶解させることが、高い剥離強度を得
る上で好ましい。Thus, according to the present invention, "polyalkylene glycol residue (PAG), alkylene glycol residue (A
G) and a polyether-ester elastomer (PEE) composed of a dicarboxylic acid residue (DC), which is a waterproof cloth, wherein the covering layer has a two-layer structure and is in contact with the base cloth. PEE (PEEA) to be formed and PEE (PEEB) to form the layer on the outside air side are (a) to
A waterproof fabric which simultaneously satisfies the requirement (e). (A) In PEEA and PEEB, both PAGs contain 90% by weight or more of polytetramethylene glycol residues. (B) The melting point of PEEB is 130 ° C. or higher. (C) The melting point of PEEA is lower than the melting point of PEEB by 20 ° C. or more. (D) The total thickness of the layer made of PEEA and the layer made of PEEB is in the range of 5 to 50 μm. (E) The ratio of PEEA in the total coating layer is 5 to 60.
Must be in the weight% range. In addition, "For organic solvents, P
A solution in which a polyether-ester elastomer (PEEA) composed of AG, AG and DC is dissolved in an amount of 2 to 30% by weight with respect to the weight of the organic solvent is prepared, and the solution is prepared by using at least a base material composed of a fiber material. 0.5 to 1 surface
After coating with an amount of 20 g / m 2 , the step of forming a layer made of PEEA on the surface of the base fabric by removing the organic solvent, and a polyether-ester type elastomer made of PAG, AG and DC in the organic solvent. A solution in which (PEEB) is dissolved in an amount of 2 to 30% by weight based on the weight of the organic solvent is prepared, and the solution is placed on the layer made of PEEA in an amount of 5 to 30%.
A method for producing a waterproof fabric, comprising the step of laminating a layer made of PEEB on a layer made of PEEA by removing an organic solvent after coating with an amount of g / m 2 . Is provided. In order to obtain high peel strength, it is preferable to form a layer made of PEEA and a layer made of PEEB on at least one surface of the base fabric in the method for producing the waterproof fabric and then heat-dissolving only the layer made of PEEA. preferable.
【0010】[0010]
【発明の実施の形態】以下、本発明の実施の形態につい
て詳細に説明する。まず、本発明に用いる基布を構成す
る繊維材料は特に限定されるものではなく、綿、絹、麻
等の天然繊維、レーヨンなどの再生繊維、アセテートな
どの半合成繊維、さらには、ポリエチレンテレフタレー
トやポリ乳酸に代表されるポリエステル繊維、ポリエー
テルエステル繊維、アクリル繊維、ナイロン繊維、アラ
ミド繊維、ポリベンズイミダゾール繊維、ポリテトラフ
ルオロエチレン繊維、ポリベンゾオキサゾール繊維、炭
素繊維、フェノール繊維、ポリビニル系繊維などの合成
繊維が例示される。これらの繊維は1種でもよいし、複
数の組合せであってもよい。使用する繊維材料の種類に
より、高強度、耐摩耗性、難燃性、易リサイクル性、生
分解性等の機能を本発明の防水布帛に付加することも可
能になる。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below. First, the fiber material constituting the base fabric used in the present invention is not particularly limited, and natural fibers such as cotton, silk and hemp, regenerated fibers such as rayon, semi-synthetic fibers such as acetate, and polyethylene terephthalate. Polyester fiber, polyether fiber, acrylic fiber, nylon fiber, aramid fiber, polybenzimidazole fiber, polytetrafluoroethylene fiber, polybenzoxazole fiber, carbon fiber, phenol fiber, polyvinyl fiber, etc. The synthetic fibers of These fibers may be one kind or a combination of plural kinds. Depending on the type of fiber material used, it is possible to add functions such as high strength, abrasion resistance, flame retardancy, easy recyclability and biodegradability to the waterproof fabric of the present invention.
【0011】これらの繊維は長繊維や短繊維、または、
それらの複合繊維の加工糸、紡績糸等の糸条となし、こ
れらの糸条を用いて公知の繊維集合体である織編物や不
織布等の基布の形態となして用いられる。また、これら
の基布を2種以上貼り合わせて多層基布としてもよい。These fibers are long fibers or short fibers, or
It is used as a yarn such as a processed yarn or a spun yarn of the composite fiber, and is used in the form of a base fabric such as a woven or knitted fabric or a non-woven fabric which is a known fiber aggregate using these yarns. Further, two or more kinds of these base cloths may be stuck together to form a multilayer base cloth.
【0012】これらの基布を構成する繊維の単繊度につ
いては特に限定されないが、基布を加工する際の取り扱
い上、0.5〜5.0デシテックスの範囲にあるものが
好ましい。The single fineness of the fibers constituting these base fabrics is not particularly limited, but those in the range of 0.5 to 5.0 decitex are preferable in view of handling when processing the base fabric.
【0013】また、これらの基布に撥水処理が施されて
いることが好ましい。かかる撥水処理剤としては、パラ
フィン系撥水剤、ポリシロキサン系撥水処理剤、フッ素
系撥水処理剤など従来任意のものが使用でき、その処理
方法も、パデング法やスプレー法等の方法が採用でき
る。かかる撥水処理の工程は基布にPEEAやPEEB
で被覆する工程の前後いずれでもよいが、基布にPEE
Aで被覆する前に撥水処理を行うことが好ましい。な
お、処理剤の添加量は、基布重量に対して0.1〜2.
0重量%の範囲が適当である。It is also preferable that these base fabrics are subjected to a water repellent treatment. As the water repellent agent, any conventional one such as a paraffin water repellent agent, a polysiloxane water repellent agent, and a fluorine water repellent agent can be used, and the treatment method is also a padding method, a spray method, or the like. Can be adopted. The process of such water repellent treatment uses PEEA or PEEB for the base cloth.
Either before or after the step of coating with
It is preferable to perform water repellent treatment before coating with A. The amount of the treating agent added is 0.1 to 2% with respect to the weight of the base fabric.
A range of 0% by weight is suitable.
【0014】次に、本発明の防水布帛において、前記基
布の少なくとも1表面上にポリアルキレングリコール残
基(PAG)、アルキレングリコール残基(AG)、お
よびジカルボン酸残基(DC)からなるポリエーテル−
エステル系エラストマー(PEE)が被覆される。ここ
で、基布の少なくとも1表面とは、基布の片側面全部ま
たは両側面全部または片側面全部と他方側面の一部であ
る。Next, in the waterproof cloth of the present invention, a poly-alkylene glycol residue (PAG), an alkylene glycol residue (AG) and a dicarboxylic acid residue (DC) are formed on at least one surface of the base cloth. Ether
An ester elastomer (PEE) is coated. Here, at least one surface of the base cloth means all one side surface or all side surfaces or all one side surface and a part of the other side surface of the base cloth.
【0015】そして、該被覆層は2層構造を有し、該2
層のうち、基布に接する層(以下PEEA層という)を
形成するPEE(PEEA)と外気側の層(以下PEE
B層という)を形成するPEE(PEEB)は以下の特
徴を有する必要がある。The coating layer has a two-layer structure.
Among the layers, PEE (PEEA) forming a layer in contact with the base cloth (hereinafter referred to as PEEA layer) and a layer on the outside air side (hereinafter referred to as PEE)
The PEE (PEEB) forming the B layer) must have the following features.
【0016】まず、PEEBの融点が、130℃以上
(好ましくは140〜170℃)である必要がある。該
融点が130℃未満の場合、例えば本発明の防水布帛を
テント布帛として用いた場合、該テント布帛を折りたた
んだ状態で真夏の車内等の高温化で保管すると被覆面同
士が熱融着する恐れがあり好ましくない。また、PEE
Aの融点はPEEBの融点よりも20℃以上(好ましく
は30〜60℃)低いことが必要である。該融点の温度
差が20℃未満の場合は以下の問題があり、好ましくな
い。すなわち、基布にPEEA層を被覆し、さらにその
上にPEEB層を被覆した後、熱カレンダー等によりP
EEA層のみを熱溶解させて、被覆層と基布との接着性
をより強固にする場合、PEEA層だけでなく、PEE
B層も溶解してしまい、高い剥離強度が得られず好まし
くない。前記PEEAの融点としては、50〜130℃
(より好ましくは70〜110℃)の範囲が、作業性の
点から適当である。First, the melting point of PEEB must be 130 ° C. or higher (preferably 140 to 170 ° C.). When the melting point is less than 130 ° C., for example, when the waterproof cloth of the present invention is used as a tent cloth, the covered surfaces may be heat-sealed when the tent cloth is folded and stored at a high temperature such as in a car in midsummer. Is not preferred. Also, PEE
The melting point of A needs to be lower than the melting point of PEEB by 20 ° C. or more (preferably 30 to 60 ° C.). When the temperature difference between the melting points is less than 20 ° C., the following problems occur, which is not preferable. That is, after covering the base fabric with the PEEA layer, and further covering the PEEB layer with the PEEA layer, P using a heat calendar or the like.
When only the EEA layer is heat-melted to further strengthen the adhesiveness between the coating layer and the base fabric, not only the PEEA layer but also the PEE
The B layer is also dissolved, and high peel strength cannot be obtained, which is not preferable. The melting point of PEEA is 50 to 130 ° C.
The range of (more preferably 70 to 110 ° C.) is suitable from the viewpoint of workability.
【0017】全被覆層の厚さ、すなわち、PEEA層の
厚さとPEEB層の厚さの合計は、5〜50μm(好ま
しくは7〜40μm)の範囲にある必要がある。かかる
全被覆層の厚さが、5μmよりも小さいと十分な耐水性
が得られず好ましくない。逆に、該厚さが50μmより
も大きいと、防水布帛の風合いや軽量性が損なわれるた
め好ましくない。なお、ここでいう被覆層の厚さとは、
基布表面に形成された被覆層の厚さであり、基布内部に
浸透したPEEAの厚さは含まない。The thickness of all coating layers, ie the sum of the PEEA layer thickness and the PEEB layer thickness, must be in the range of 5 to 50 μm (preferably 7 to 40 μm). If the thickness of the entire coating layer is smaller than 5 μm, sufficient water resistance cannot be obtained, which is not preferable. On the contrary, if the thickness is larger than 50 μm, the texture and the lightness of the waterproof fabric are impaired, which is not preferable. The thickness of the coating layer here means
This is the thickness of the coating layer formed on the surface of the base cloth, and does not include the thickness of PEEA that has penetrated into the inside of the base cloth.
【0018】さらに、全被覆層中に占めるPEEAの割
合が、5〜60重量%(好ましくは7〜50重量%)の
範囲にある必要がある。かかるPEEAの割合が5重量
%よりも低いと、十分な皮膜形成性が得られず好ましく
ない。逆に、PEEAの割合が60重量%よりも大きい
と、被覆層の耐熱性が劣るため好ましくない。全被覆層
中に占めるPEEAの割合を上記の範囲内とすることに
より、被覆層の基布に対する優れた接着性や耐熱性が得
られ易い。なお、ここでいうPEEAの割合は基布内部
に浸透した分を含むものである。Furthermore, the proportion of PEEA in the total coating layer must be in the range of 5 to 60% by weight (preferably 7 to 50% by weight). When the proportion of such PEEA is lower than 5% by weight, sufficient film forming property cannot be obtained, which is not preferable. On the contrary, if the proportion of PEEA is more than 60% by weight, the heat resistance of the coating layer is poor, which is not preferable. By setting the ratio of PEEA in all the coating layers within the above range, excellent adhesion and heat resistance of the coating layer to the base fabric are easily obtained. The ratio of PEEA referred to here includes the amount that has penetrated into the inside of the base cloth.
【0019】次に、PEEAおよびPEEBに共通の要
件について以下述べる。まず、PEEAおよびPEEB
において、PAGがともにポリテトラメチレングリコー
ル残基を90重量%以上(好ましくは95重量%以上)
含んでいる必要がある。ポリテトラメチレングリコール
残基が90重量%未満の場合は、安定した強い皮膜強度
が得られないためピンホールが発生し易くなり、高い耐
水圧が得られず好ましくない。また、基布表面にPEE
Aをコーテングする際に、PEEA自体が基布内部に過
剰に浸透し易くなり好ましくない。Next, requirements common to PEEA and PEEB will be described below. First, PEEA and PEEB
In PAG, both polytetramethylene glycol residues are 90% by weight or more (preferably 95% by weight or more)
Must be included. When the content of the polytetramethylene glycol residue is less than 90% by weight, stable and strong film strength cannot be obtained, so that pinholes are likely to occur and high water pressure resistance cannot be obtained, which is not preferable. In addition, PEE on the surface of the base cloth
When coating A, PEEA itself tends to excessively penetrate into the inside of the base fabric, which is not preferable.
【0020】PEEAおよびPEEBを構成するPAG
としては、前述の要件を満足していれば、ポリエチレン
グリコール残基、ポリ1,2−プロピレングリコール残
基、ポリ1,3−プロピレングリコール残基、エチレン
オキシドとプロピレンオキシドとの共重合体の残基、エ
チレンオキシドとテトラヒドロフランとの共重合体の残
基などが一部配されていてもよい。また、該PAGの数
平均分子量については、600〜8000(より好まし
くは1000〜5000)の範囲が好ましい。該数平均
分子量が600未満であると、十分な機械的特性が得ら
れない恐れがある。逆に該数平均分子量が8000を越
えると、相分離が発生し易くなりPEEの調整が困難に
なる恐れがある。PAGs that make up PEEA and PEEB
As long as the above requirements are satisfied, a polyethylene glycol residue, a poly (1,2-propylene glycol residue), a poly (1,3-propylene glycol residue), or a residue of a copolymer of ethylene oxide and propylene oxide. A part of the residue of a copolymer of ethylene oxide and tetrahydrofuran may be arranged. The number average molecular weight of the PAG is preferably in the range of 600 to 8000 (more preferably 1000 to 5000). If the number average molecular weight is less than 600, sufficient mechanical properties may not be obtained. On the other hand, when the number average molecular weight exceeds 8000, phase separation is likely to occur and it may be difficult to adjust PEE.
【0021】PEEAおよびPEEBを構成するDCと
しては、テレフタル酸残基、イソフタル酸残基、フタル
酸残基、ナフタレン−2,6−ジカルボン酸残基、ナフ
タレン−2,7−ジカルボン酸残基、ジフェニル−4,
4,−ジカルボン酸残基、ジフェノキシエタンジカルボ
ン酸残基、3−スルホイソフタル酸ナトリウム等の芳香
族ジカルボン酸残基、1,4−シクロヘキサンジカルボ
ン酸残基等の脂環式ジカルボン酸残基、コハク酸残基、
シュウ酸残基、アジピン酸残基、セバシン酸残基、ドデ
カンジ酸残基、ダイマー酸残基、これらの誘導体残基等
の脂肪族ジカルボン酸残基からなる群より選択された少
なくとも1種があげられ、特にテレフタル酸残基、イソ
フタル酸残基、ナフタレン−2,6−ジカルボン酸残
基、これらの誘導体残基からなる群より選択された少な
くとも1種が特に好ましくあげられる。もちろん、これ
らのDCの一部(通常、全DCを基準として30モル%
以下)を、他のDCやオキシカルボン酸残基に置き換え
てもよい。As DC constituting PEEA and PEEB, terephthalic acid residue, isophthalic acid residue, phthalic acid residue, naphthalene-2,6-dicarboxylic acid residue, naphthalene-2,7-dicarboxylic acid residue, Diphenyl-4,
4 , -dicarboxylic acid residue, diphenoxyethanedicarboxylic acid residue, aromatic dicarboxylic acid residue such as sodium 3-sulfoisophthalate, alicyclic dicarboxylic acid residue such as 1,4-cyclohexanedicarboxylic acid residue, Succinic acid residue,
At least one selected from the group consisting of aliphatic dicarboxylic acid residues such as oxalic acid residue, adipic acid residue, sebacic acid residue, dodecanedioic acid residue, dimer acid residue, and derivative residues thereof. Of these, at least one selected from the group consisting of a terephthalic acid residue, an isophthalic acid residue, a naphthalene-2,6-dicarboxylic acid residue, and a derivative residue thereof is particularly preferred. Of course, some of these DCs (usually 30 mol% based on total DC
The following) may be replaced with other DC or oxycarboxylic acid residue.
【0022】また、PEEAおよびPEEBを構成する
AGとしては、エチレングリコール残基、プロピレング
リコール残基、テトラメチレングリコール残基などがあ
げられる。Examples of AG constituting PEEA and PEEB include ethylene glycol residue, propylene glycol residue, tetramethylene glycol residue and the like.
【0023】さらに、PEEAおよびPEEBにおい
て、PAGとAGおよびDCとの重量比(PAG:(A
G+DC))がともに、30:70〜70:30(より
好ましくは40:60〜60:40)の範囲にあること
が好ましい。PAGの重量がかかる範囲よりも大きい
と、得られたPEEの融点が低くなり易く、PAGの重
量がかかる範囲よりも小さいと、十分な柔軟性が発現さ
れない恐れがある。Furthermore, in PEEA and PEEB, the weight ratio of PAG to AG and DC (PAG: (A
G + DC)) are both in the range of 30:70 to 70:30 (more preferably 40:60 to 60:40). If the weight of PAG is higher than the above range, the melting point of the obtained PEE tends to be low, and if the weight of PAG is lower than the above range, sufficient flexibility may not be exhibited.
【0024】PEEAおよびPEEBの固有粘度は、十
分な皮膜形成性および被覆層の皮膜強度を維持するため
に、0.8〜1.4の範囲が適当である。また、PEE
AおよびPEEBの中には、各種安定剤、紫外線吸収剤
が必要に応じて配合されていてもよい。The intrinsic viscosity of PEEA and PEEB is appropriately in the range of 0.8 to 1.4 in order to maintain sufficient film forming property and film strength of the coating layer. Also, PEE
Various stabilizers and ultraviolet absorbers may be blended in A and PEEB, if necessary.
【0025】本発明の防水布帛において、基布とPEE
A層は直接結合している必要があるが、PEEA層とP
EEB層との間には、前述のPEEAおよびPEEBと
ポリマー組成が異なる第3のPEEからなる中間層を少
量なら介在させてもよい。かかる第3のPEEとして
は、PEEAとPEEBとの中間の性質を持つものが好
ましい。また、PEEB層のさらにその上、すなわち、
外表面側に、PEEBとポリマー組成が異なる他のポリ
マー材料からなる最外表面の層も少量なら配置してもよ
い。かかるPEEBとポリマー組成が異なる他のポリマ
ー材料としては、例えば、フッ素系樹脂などの撥水樹
脂、シリコーン樹脂、前述の第3のPEE、PEEAな
どがあげられ、なかでも防水布帛に撥水性などの機能を
付加できることから、フッ素樹脂などの撥水樹脂やシリ
コーン樹脂が好ましい。なお、ここでいう少量とは、全
被覆層の総重量に対して20重量%以内のことである。In the waterproof fabric of the present invention, the base fabric and PEE
A layer must be directly bonded, but PEEA layer and P layer
An intermediate layer composed of a third PEE having a different polymer composition from the above PEEA and PEEB may be interposed between the EEB layer and a small amount thereof. As the third PEE, one having an intermediate property between PEEA and PEEB is preferable. Moreover, further on the PEEB layer, that is,
On the outer surface side, an outermost surface layer made of another polymer material having a polymer composition different from that of PEEB may also be arranged in a small amount. Other polymer materials having a different polymer composition from PEEB include, for example, a water repellent resin such as a fluororesin, a silicone resin, the above-mentioned third PEE, PEEA, and the like. A water-repellent resin such as a fluororesin or a silicone resin is preferable because it can add a function. The small amount referred to here means 20% by weight or less based on the total weight of all the coating layers.
【0026】次に、本発明の防水布帛の製造方法につい
て以下に述べる。本発明の防水布帛は、有機溶剤に前述
のPEEAを溶解させた溶液をコートした後、乾式法も
しくは湿式法により、有機溶剤を除去して前述の基布表
面にPEEAからなる層を形成する工程と、有機溶剤に
前述のPEEBを溶解させた溶液をコートした後、乾式
法もしくは湿式法により有機溶剤を除去することにより
PEEA層の上にPEEB層を積層する工程とにより得
られる。ここで、基布にPEEAからなるフィルムとP
EEBからなるフィルムをラミネート加工を施すことに
よっても、本発明の防水布帛は得られるが、生産工程
上、前記コーテイング法が好ましい。また、基布は、前
述のようにフッ素系等の撥水処理剤で撥水処理加工を施
されていることが好ましく、該撥水処理剤の添加量は、
基布重量に対して0.1〜2.0重量%の範囲が適当で
ある。このように、基布にPEEA層を形成する前に、
予め撥水処理を施すことにより、PEEA溶液の基布内
部への浸透を抑制することができる。Next, the method for producing the waterproof fabric of the present invention will be described below. The waterproof fabric of the present invention comprises a step of forming a layer of PEEA on the surface of the base fabric by removing the organic solvent by a dry method or a wet method after coating a solution prepared by dissolving the above PEEA in an organic solvent. And a step of laminating a PEEB layer on the PEEA layer by removing the organic solvent by a dry method or a wet method after coating the solution in which the above-mentioned PEEB is dissolved in the organic solvent. Here, a film made of PEEA and P
The waterproof fabric of the present invention can be obtained by laminating a film made of EEB, but the coating method is preferable in the production process. The base cloth is preferably subjected to a water repellent treatment with a water repellent agent such as a fluorine-based agent as described above, and the amount of the water repellent agent added is
A suitable range is 0.1 to 2.0% by weight based on the weight of the base fabric. Thus, before forming the PEEA layer on the base fabric,
By performing the water repellent treatment in advance, it is possible to prevent the PEEA solution from penetrating into the inside of the base cloth.
【0027】前記PEEAおよびPEEBを溶解可能な
溶剤としては、ジメチルホルムアミド、ジオキサン、
1,3−ジオキソラン(エチレンホルマール)、トルエ
ン、クロロホルム、塩化メチレンの1種もしくは2種以
上の有機溶剤があげられる。また、PEEAまたはPE
EBを有機溶剤に溶解させる際、該有機溶剤の重量に対
してPEEAまたはPEEBを2〜30重量%溶解させ
る必要があり、特に50〜65℃の温度で5〜20重量
%溶解させることが均一な被覆層を得る上で好ましい。Solvents capable of dissolving PEEA and PEEB include dimethylformamide, dioxane,
Examples of the organic solvent include 1,3-dioxolane (ethylene formal), toluene, chloroform, and methylene chloride. Also, PEEA or PE
When EB is dissolved in an organic solvent, it is necessary to dissolve 2 to 30% by weight of PEEA or PEEB with respect to the weight of the organic solvent, and particularly 5 to 20% by weight is uniformly dissolved at a temperature of 50 to 65 ° C. It is preferable for obtaining a uniform coating layer.
【0028】基布表面にコーテングする方法としては、
任意のコーテング法、例えばナイフコーター等を用いた
コーテング法が好ましく採用され、まず基布の表面上に
PEEAのコート層を形成し、次にPEEBのコート層
を形成することにより、基布との接着性に優れ、かつ高
い耐水圧を有する被覆層が形成される。As a method for coating the surface of the base cloth,
Any coating method, for example, a coating method using a knife coater or the like is preferably adopted. First, a PEEA coat layer is formed on the surface of the base fabric, and then a PEEB coat layer is formed to form a base fabric. A coating layer having excellent adhesiveness and high water pressure resistance is formed.
【0029】PEEAのコート量については、0.5〜
20g/m2(好ましくは1〜5g/m2)の範囲である
必要がある。該PEEAのコート量が0.5g/m2未
満であると均一な薄膜を形成し難く、したがって、PE
EB層も不均一になり易いため、十分な耐水圧が得られ
ず好ましくない。逆に、該コート量が20g/m2を越
えると、防水布帛の重量が増すため、軽量化が難しく好
ましくない。また、PEEBのコート量については、5
〜30g/m2(好ましくは10〜20g/m2)の範囲
である必要がある。該PEEBのコート量が5g/m2
未満であると十分な耐水圧が得られず好ましくない。逆
に、該PEEBのコート量が30g/m 2を越えると、
得られた防水布帛の風合いが難くなる傾向にあるため好
ましくない。The PEEA coat amount is from 0.5 to
20 g / m2(Preferably 1 to 5 g / m2) Range
There is a need. The coating amount of PEEA is 0.5 g / m2Not yet
When it is full, it is difficult to form a uniform thin film.
Since the EB layer also tends to be non-uniform, sufficient water pressure resistance can be obtained.
Not desirable. On the contrary, the coating amount is 20 g / m2Over
If so, the weight of the waterproof fabric increases, which makes it difficult to reduce the weight and is preferable.
Not good. Also, regarding the coating amount of PEEB, 5
~ 30g / m2(Preferably 10 to 20 g / m2) Range
Must be The coating amount of PEEB is 5 g / m2
If it is less than this, sufficient water pressure resistance cannot be obtained, which is not preferable. Reverse
And the coating amount of PEEB is 30 g / m 2Crossing,
The resulting waterproof fabric tends to have a hard texture, which is favorable.
Not good.
【0030】前記有機溶剤の除去については、70〜1
70℃(好ましくは75〜150℃)の乾熱下で有機溶
剤を除去する方法や、PEEが不溶で、かつ有機溶剤が
可溶な溶液、例えば温水等で有機溶剤を抽出した後、乾
燥を行う湿式法などが採用される。For the removal of the organic solvent, 70-1
A method of removing the organic solvent under dry heat at 70 ° C. (preferably 75 to 150 ° C.), or a method in which PEE is insoluble and the organic solvent is soluble, for example, the organic solvent is extracted with warm water, and then dried. A wet method or the like is used.
【0031】本発明の防水布帛の製造方法において、P
EEB層を形成した後、熱カレンダー加工等の熱処理を
施すことにより、PEEB層は熱溶解させずにPEEA
層のみを熱溶解させることが好ましい。かかる方法によ
り、被覆層と基布との接着性をより強固にすることが可
能になる。この際、熱処理温度としては、PEEAは熱
溶解されるが、PEEBは熱溶解されない温度である必
要があり、90〜180℃(より好ましくは100〜1
50℃)の範囲が適当である。かかる温度で布帛にカレ
ンダー加工を施すことにより、PEEA層のみ熱溶解さ
せることができ、被覆層と基布との強固な接着性が得ら
れる。In the method for producing a waterproof fabric of the present invention, P
After the EEB layer is formed, heat treatment such as thermal calendering is performed, so that the PEEB layer is not thermally melted and PEEA is not melted.
It is preferred to heat dissolve only the layers. By this method, it becomes possible to further strengthen the adhesiveness between the coating layer and the base fabric. At this time, the heat treatment temperature is such that PEEA is melted by heat but PEEB is not melted by heat, and the temperature is 90 to 180 ° C. (more preferably 100 to 1).
A range of 50 ° C is suitable. By calendering the cloth at such a temperature, only the PEEA layer can be heat-dissolved, and strong adhesion between the coating layer and the base cloth can be obtained.
【0032】なお、前述の撥水処理加工が、熱カレンダ
ー加工等の熱処理の前及び/又は後に施されてもよい。The water repellent treatment may be performed before and / or after heat treatment such as thermal calendaring.
【0033】このようにして得られた本発明の防水布帛
は、PEEA層およびPEEB層が、その面方向に均一
な厚さで形成されており、薄膜であっても、高い耐水圧
を有する。ここで、前記耐水圧が10kPa(1020
mmH2O)以上(より好ましくは14kPa以上)で
あることが好ましい。また、接着性としては剥離強度で
8N/25mm以上(より好ましくは10N/25mm
以上)であることが好ましい。かかる高い耐水圧を有す
る防水布帛は、テント用布帛等の用途に好適に使用され
る。In the waterproof cloth of the present invention thus obtained, the PEEA layer and the PEEB layer are formed with a uniform thickness in the surface direction, and even if it is a thin film, it has a high water pressure resistance. Here, the water pressure resistance is 10 kPa (1020
mmH 2 O) or more (more preferably 14 kPa or more). Further, as adhesiveness, peel strength is 8 N / 25 mm or more (more preferably 10 N / 25 mm
Or more) is preferable. The waterproof cloth having such high water pressure resistance is suitably used for applications such as cloth for tents.
【0034】以上、本発明の防水布帛およびその製造方
法について説明したが、本発明の防水布帛は、単独で使
用されてもよいし、他の布帛と組合わせて使用されても
よい。Although the waterproof cloth of the present invention and the method for producing the same have been described above, the waterproof cloth of the present invention may be used alone or in combination with other cloths.
【0035】[0035]
【実施例】次に本発明の実施例を詳述するが、本発明は
これらによって限定されるものではない。なお、実施例
中の各測定項目は下記の方法で測定した。
<融点>示差走査型熱量計(TA instrumen
t製 DSC29290)を用いて、窒素気流中10℃
/分の昇温速度で測定した。
<テトラメチレングリコール含有率>90MHz FT
−NMR(日立製作所製R1900)を用いて定量し
た。
<耐水圧試験>JIS L−1092法のB法(高水圧
法)に準拠して行い、静水圧法で測定した。
<剥離試験>K−6301を参考にし、試験片(2cm
×9cm)の被覆面に融着テープを熱融着させた後、試
験片と融着テープとを引張り試験機の相互に向い合った
チャック間(50mm)にセットし、50mm/min
の引張り速度でチャック間の距離を広げることで基布と
被覆層とを剥離させ、初期の剥離を除いた平均応力を読
み取り、サンプルの巾25mm当たりの応力(N/25
mm)に換算したものを剥離強度とした。
<耐熱性試験>10cm×10cmの試験片を2枚用意
し、各々の被覆面を貼り合わせ、9.8N(1kgf)
の荷重をかけ、100℃で6時間放置し、融着部の被覆
面同士の剥離試験を行い、下記の基準で評価した。
○:被覆面同士が全く融着していない状態。
△:剥離強度が(0.98〜9.8)cN/25mm
[(1〜10)grf/25mm]であるもの。
×:剥離強度が9.8cN/25mm[10grf/2
5mm]を越えるもの。EXAMPLES Examples of the present invention will now be described in detail, but the present invention is not limited thereto. Each measurement item in the examples was measured by the following method. <Melting point> Differential scanning calorimeter (TA instrument
DSC29290 manufactured by T., in a nitrogen stream at 10 ° C.
It was measured at a temperature rising rate of / min. <Tetramethylene glycol content> 90MHz FT
-Quantification was performed using NMR (R1900 manufactured by Hitachi, Ltd.). <Hydraulic pressure resistance test> The test was carried out according to JIS B-1092 method B (high water pressure method) and was measured by the hydrostatic pressure method. <Peeling test> Referring to K-6301, a test piece (2 cm
After heat-bonding the fusion tape to the coated surface of (9 cm), the test piece and the fusion tape are set in the mutually facing chucks (50 mm) of the tensile tester at 50 mm / min.
The distance between the chucks is increased at a pulling speed of 10 to separate the base cloth and the coating layer, and the average stress excluding the initial peeling is read, and the stress per 25 mm width of the sample (N / 25
The value calculated as mm) was defined as the peel strength. <Heat resistance test> Two test pieces of 10 cm x 10 cm were prepared, and the coated surfaces of the test pieces were pasted together to obtain 9.8 N (1 kgf).
Was applied, the mixture was left at 100 ° C. for 6 hours, a peeling test was performed between the coated surfaces of the fusion-bonded portion, and evaluation was made according to the following criteria. ◯: A state where the coated surfaces are not fused at all. Δ: Peel strength (0.98 to 9.8) cN / 25 mm
[(1-10) grf / 25 mm]. X: Peel strength is 9.8 cN / 25 mm [10 grf / 2
5 mm] or more.
【0036】[実施例1]
(PEEAの作製)イソフタル酸ジメチル(IMT)3
1.5重量部、テトラメチレングリコール(TMG)1
8.1重量部、ポリテトラメチレングリコール(PTM
G)32.7重量部を反応容器内中に仕込んで、エステ
ル交換反応を行いモノマーを得た。その後昇温減圧しつ
つ重縮合反応を行ってPEEAを得た。なお、PTMG
は数平均分子量1000のものを用いた。得られたPE
EAの融点は107℃であった。
(PEEBの作製)テレフタル酸ジメチル(DMT)2
10部、イソフタル酸(IA)63.6重量部、テトラ
メチレングリコール(TMG)193.3重量部、ポリ
テトラメチレングリコール(PTMG)199重量部を
反応容器中に仕込んで、エステル交換反応を行いモノマ
ーを得た。その後昇温減圧しつつ重縮合反応を行ってP
EEBを得た。なお、IAはスラリー状のものを、PT
MGは数平均分子量2000のものを用いた。得られた
PEEBの融点は155℃であった。
(防水布帛の作製)ポリエステル布帛に撥水処理剤(フ
ッ素系撥水処理剤LS−317、明成化学株式会社製)
が基布重量に対して1.0重量%となるように処理し、
耐水圧2.94kPa(300mmH2O)の基布を準
備した。そして、前記により得られたPEEA25重量
部を、60℃に加熱されたエチレンホルマール75重量
部に完全に溶解させ、ナイフコーターにより、コート量
が5g/m2になるように、クリアランスを調整してコ
ーテングした後、120℃の乾熱下で1分間熱処理を行
うことによりPEEA層を形成した。続いて前記により
得られたPEEB10重量部を、60℃に加熱されたエ
チレンホルマール90重量部に完全に溶解させ、コート
量が7g/m2になるようにコーテングした後、120
℃乾熱下で3分間熱処理を行い、PEEB層を形成し
た。さらに、120℃、196N(20Kgf)/cm
のカレンダー加工を施した。得られた防水布帛は、被覆
層が薄膜でありながら高い耐水圧、高い剥離強度、優れ
た耐熱性を有するものであった。評価結果を表1に示
す。Example 1 (Preparation of PEEA) Dimethyl isophthalate (IMT) 3
1.5 parts by weight, tetramethylene glycol (TMG) 1
8.1 parts by weight, polytetramethylene glycol (PTM
G) 32.7 parts by weight was charged into the reaction vessel and a transesterification reaction was carried out to obtain a monomer. Then, the polycondensation reaction was performed while heating and depressurizing to obtain PEEA. In addition, PTMG
Having a number average molecular weight of 1000 was used. Obtained PE
The melting point of EA was 107 ° C. (Production of PEEB) Dimethyl terephthalate (DMT) 2
10 parts, 63.6 parts by weight of isophthalic acid (IA), 193.3 parts by weight of tetramethylene glycol (TMG), and 199 parts by weight of polytetramethylene glycol (PTMG) were charged in a reaction vessel to carry out a transesterification reaction, and a monomer was obtained. Got After that, polycondensation reaction is performed while heating and depressurizing, and P
Obtained EEB. In addition, IA is slurry type, PT
MG having a number average molecular weight of 2000 was used. The melting point of the obtained PEEB was 155 ° C. (Production of waterproof fabric) A water repellent treatment agent (fluorine-based water repellent treatment agent LS-317, manufactured by Meisei Chemical Co., Ltd.) is applied to a polyester fabric.
Is treated to 1.0% by weight with respect to the weight of the base cloth,
A base fabric having a water pressure resistance of 2.94 kPa (300 mmH 2 O) was prepared. Then, 25 parts by weight of PEEA obtained above was completely dissolved in 75 parts by weight of ethylene formal heated to 60 ° C., and the clearance was adjusted with a knife coater so that the coating amount was 5 g / m 2. After coating, a PEEA layer was formed by performing heat treatment for 1 minute under dry heat at 120 ° C. Subsequently, 10 parts by weight of PEEB obtained as described above was completely dissolved in 90 parts by weight of ethylene formal heated to 60 ° C., and coated so that the coating amount was 7 g / m 2.
Heat treatment was performed for 3 minutes under dry heat at 0 ° C. to form a PEEB layer. Furthermore, 120 ° C, 196 N (20 Kgf) / cm
The calendar processing of. The resulting waterproof cloth had a high water pressure resistance, high peel strength, and excellent heat resistance even though the coating layer was a thin film. The evaluation results are shown in Table 1.
【0037】[実施例2、比較例1および2]PEEB
を作製する際、ポリテトラメチレングリコール(PTM
G)の一部をポリエチレングリコール(PEG)に置き
換えてPTMG/PEG重量比を表1のように変更した
以外は実施例1と同様にして防水布帛を得た。得られた
防水布帛の評価結果を表1に示す。[Example 2, Comparative Examples 1 and 2] PEEB
Polytetramethylene glycol (PTM
A waterproof fabric was obtained in the same manner as in Example 1 except that a part of G) was replaced with polyethylene glycol (PEG) and the PTMG / PEG weight ratio was changed as shown in Table 1. Table 1 shows the evaluation results of the obtained waterproof fabric.
【0038】[実施例3、比較例3および4]PEEB
を作製する際、PTMGの比率、分子量を適宜変更する
ことにより、PEEBの融点を表1のように変更した。
また、PTMGとPEGとの重量比を表1のように変更
した。これ以外は実施例1と同様にして防水布帛を得
た。得られた防水布帛の評価結果を表1に示す。[Example 3, Comparative Examples 3 and 4] PEEB
At the time of producing, the melting point of PEEB was changed as shown in Table 1 by appropriately changing the ratio of PTMG and the molecular weight.
Further, the weight ratio of PTMG and PEG was changed as shown in Table 1. A waterproof fabric was obtained in the same manner as in Example 1 except for this. Table 1 shows the evaluation results of the obtained waterproof fabric.
【0039】[比較例5〜7]PEEAを作製する際、
PTMGの比率、分子量を適宜変更することにより、P
EEAの融点を表1のように変更した。また、PEEB
を作製する際、PTMGの比率、分子量を適宜変更する
ことにより、PEEBの融点を表1のように変更した。
さらに、カレンダー加工温度を表1のように変更した。
これ以外は実施例1と同様にして防水布帛を得た。得ら
れた防水布帛の評価結果を表1に示す。[Comparative Examples 5 to 7] In producing PEEA,
By appropriately changing the ratio of PTMG and the molecular weight, P
The melting point of EEA was changed as shown in Table 1. Also, PEEB
At the time of producing, the melting point of PEEB was changed as shown in Table 1 by appropriately changing the ratio of PTMG and the molecular weight.
Further, the calendering temperature was changed as shown in Table 1.
A waterproof fabric was obtained in the same manner as in Example 1 except for this. Table 1 shows the evaluation results of the obtained waterproof fabric.
【0040】[0040]
【表1】 [Table 1]
【0041】[0041]
【発明の効果】本発明によれば、被覆層の厚みが薄くて
も高い耐水圧を有する防水布帛が得られる。かかる防水
布帛は廃棄されて燃焼される際、使用される樹脂が人体
に対して毒性のあるガスを発生することもなく、テント
用布帛などの用途に極めて好適である。According to the present invention, a waterproof cloth having a high water pressure resistance can be obtained even if the thickness of the coating layer is thin. When such a waterproof cloth is discarded and burned, the resin used does not generate a gas that is toxic to the human body and is extremely suitable for applications such as tent cloth.
フロントページの続き Fターム(参考) 4F100 AK41B AK41C AK41D AK41E AK41J AK42B AK42C AK42D AK42E AK42J AK54B AK54C AK54D AK54E AK54J AL01B AL01C AL01D AL01E AL09B AL09C AL09D AL09E BA03 BA05 BA06 BA07 BA10D BA10E DG01A DG11A EH462 GB87 GB90 JA04B JA04C JA04D JA04E JA20B JA20C JA20D JA20E JB06 JB07 JD05 JJ03 JK06 JL00 YY00 YY00B YY00C YY00D YY00E 4L033 AA07 AB04 AC03 AC15 CA45 CA48 Continued front page F term (reference) 4F100 AK41B AK41C AK41D AK41E AK41J AK42B AK42C AK42D AK42E AK42J AK54B AK54C AK54D AK54E AK54J AL01B AL01C AL01D AL01E AL09B AL09C AL09D AL09E BA03 BA05 BA06 BA07 BA10D BA10E DG01A DG11A EH462 GB87 GB90 JA04B JA04C JA04D JA04E JA20B JA20C JA20D JA20E JB06 JB07 JD05 JJ03 JK06 JL00 YY00 YY00B YY00C YY00D YY00E 4L033 AA07 AB04 AC03 AC15 CA45 CA48
Claims (9)
面に、ポリアルキレングリコール残基(PAG)、アル
キレングリコール残基(AG)、およびジカルボン酸残
基(DC)からなるポリエーテル−エステル系エラスト
マー(PEE)が被覆された防水布帛であって、該被覆
層が2層構造を有し、かつ基布に接する層を形成するP
EE(PEEA)と外気側の層を形成するPEE(PE
EB)が下記(a)〜(e)の要件を同時に満足するこ
とを特徴とする防水布帛。 (a)PEEAおよびPEEBにおいて、PAGがとも
にポリテトラメチレングリコール残基を90重量%以上
含んでいること。 (b)PEEBの融点が130℃以上であること。 (c)PEEAの融点がPEEBの融点より20℃以上
低いこと。 (d)PEEAからなる層の厚さとPEEBからなる層
の厚さの合計が、5〜50μmの範囲にあること。 (e)全被覆層中に占めるPEEAの割合が、5〜60
重量%の範囲にあること。1. A polyether-ester elastomer comprising a polyalkylene glycol residue (PAG), an alkylene glycol residue (AG), and a dicarboxylic acid residue (DC) on at least one surface of a base material made of a fiber material. (PEE) -coated waterproof cloth, wherein the covering layer has a two-layer structure and forms a layer in contact with the base cloth.
EE (PEEA) and PEE (PE that forms a layer on the outside air side)
A waterproof fabric in which EB) simultaneously satisfies the following requirements (a) to (e). (A) In PEEA and PEEB, both PAGs contain 90% by weight or more of polytetramethylene glycol residues. (B) The melting point of PEEB is 130 ° C. or higher. (C) The melting point of PEEA is lower than the melting point of PEEB by 20 ° C. or more. (D) The total thickness of the layer made of PEEA and the layer made of PEEB is in the range of 5 to 50 μm. (E) The ratio of PEEA in the total coating layer is 5 to 60.
Must be in the weight% range.
がともにテレフタル酸残基、イソフタル酸残基、ナフタ
レン−2,6−ジカルボン酸残基、これらの誘導体残基
からなる群より選択された少なくとも1種である請求項
1記載の防水布帛。2. DC in PEEA and PEEB
2. The waterproof fabric according to claim 1, wherein each of them is at least one selected from the group consisting of a terephthalic acid residue, an isophthalic acid residue, a naphthalene-2,6-dicarboxylic acid residue, and a derivative residue thereof.
Gの数平均分子量がともに600〜8000の範囲にあ
る請求項1または請求項2に記載の防水布帛。3. In PEEA and PEEB, PA
The waterproof fabric according to claim 1 or 2, wherein both G number average molecular weights are in the range of 600 to 8000.
GとAGおよびDCとの重量比(PAG:(AG+D
C))がともに、30:70〜70:30の範囲にある
請求項1〜3のいずれかに記載の防水布帛。4. PA in PEEA and PEEB
Weight ratio of G to AG and DC (PAG: (AG + D
Both C)) are in the range of 30:70 to 70:30, The waterproof cloth according to any one of claims 1 to 3.
20mmH2O)以上である請求項1〜4のいずれかに
記載の防水布帛。5. The water resistant pressure of the waterproof fabric is 10 kPa (10
20 mm H 2 O) or more in the waterproof fabric according to any one of claims 1 to 4.
以上である請求項1〜5のいずれかに記載の防水布帛。6. The peel strength of the waterproof cloth is 8 N / 25 mm.
It is above, The waterproof cloth in any one of Claims 1-5.
らなるポリエーテル−エステル系エラストマー(PEE
A)を、有機溶剤の重量に対して、2〜30重量%溶解
させた溶液を準備し、該溶液を繊維材料からなる基布の
少なくとも1表面に、0.5〜20g/m2の量でコー
トした後、有機溶剤を除去して基布の表面にPEEAか
らなる層を形成する工程と、有機溶剤に、PAG、AG
およびDCからなるポリエーテル−エステル系エラスト
マー(PEEB)を、有機溶剤の重量に対して、2〜3
0重量%溶解させた溶液を準備し、該溶液を前記PEE
Aからなる層の上に5〜30g/m2の量でコートした
後、有機溶剤を除去することによりPEEAからなる層
の上にPEEBからなる層を積層する工程を含むことを
特徴とする防水布帛の製造方法。7. A polyether-ester elastomer (PEE) comprising PAG, AG and DC in an organic solvent.
A solution is prepared by dissolving A) in an amount of 2 to 30% by weight based on the weight of the organic solvent, and the solution is applied to at least one surface of the base fabric made of a fiber material in an amount of 0.5 to 20 g / m 2 . After coating with, the organic solvent is removed to form a layer made of PEEA on the surface of the base cloth, and the organic solvent is treated with PAG, AG.
A polyether-ester type elastomer (PEEB) composed of DC and DC, based on the weight of the organic solvent;
A solution having 0% by weight dissolved therein is prepared, and the solution is mixed with the PEE.
A waterproofing characterized by including a step of laminating a layer made of PEEB on a layer made of PEEA by removing an organic solvent after coating the layer made of A in an amount of 5 to 30 g / m 2. Fabric manufacturing method.
らなる層とPEEBからなる層を形成したのち、PEE
Aからなる層のみ熱溶解させる工程を含む請求項7に記
載の防水布帛の製造方法。8. A layer of PEEA and a layer of PEEB are formed on at least one surface of a base fabric, and then PEE is formed.
The method for producing a waterproof cloth according to claim 7, which includes a step of heat-dissolving only the layer consisting of A.
ド、ジオキサン、1,3−ジオキソラン、トルエン、ク
ロロホルム、塩化メチレン、これらの混合物の群より選
択される少なくとも1種である請求項7または請求項8
に記載の防水布帛の製造方法。9. The organic solvent is at least one selected from the group consisting of dimethylformaldehyde, dioxane, 1,3-dioxolane, toluene, chloroform, methylene chloride, and mixtures thereof.
The method for producing the waterproof fabric according to.
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JP2006152496A (en) * | 2004-11-30 | 2006-06-15 | Teijin Techno Products Ltd | Waterproof fabric |
JP2014151635A (en) * | 2013-02-14 | 2014-08-25 | Hiraoka & Co Ltd | Fabric touch shading film material |
JP2018520272A (en) * | 2015-08-10 | 2018-07-26 | チョンサン インターナショナル カンパニー リミテッド | Artificial leather using polyester and method for producing the same |
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