JP4602141B2 - Surface treated nonwoven fabric and method for producing the same - Google Patents
Surface treated nonwoven fabric and method for producing the sameDownload PDFInfo
- Publication number
- JP4602141B2 JP4602141B2JP2005101944AJP2005101944AJP4602141B2JP 4602141 B2JP4602141 B2JP 4602141B2JP 2005101944 AJP2005101944 AJP 2005101944AJP 2005101944 AJP2005101944 AJP 2005101944AJP 4602141 B2JP4602141 B2JP 4602141B2
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- fiber
- nonwoven fabric
- aluminum
- 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.)
- Expired - Fee Related
Links
- 239000004745nonwoven fabricSubstances0.000titleclaimsdescription86
- 238000004519manufacturing processMethods0.000titleclaimsdescription8
- 239000000835fiberSubstances0.000claimsdescription118
- 229910052782aluminiumInorganic materials0.000claimsdescription37
- XAGFODPZIPBFFR-UHFFFAOYSA-NaluminiumChemical compound[Al]XAGFODPZIPBFFR-UHFFFAOYSA-N0.000claimsdescription34
- XLYOFNOQVPJJNP-UHFFFAOYSA-NwaterSubstancesOXLYOFNOQVPJJNP-UHFFFAOYSA-N0.000claimsdescription31
- 239000000470constituentSubstances0.000claimsdescription27
- 239000000853adhesiveSubstances0.000claimsdescription16
- 230000001070adhesive effectEffects0.000claimsdescription9
- 238000012986modificationMethods0.000claimsdescription9
- 230000004048modificationEffects0.000claimsdescription9
- 238000004544sputter depositionMethods0.000claimsdescription5
- 238000007740vapor depositionMethods0.000claimsdescription5
- 238000000034methodMethods0.000description23
- -1aluminum compoundChemical class0.000description21
- 239000000463materialSubstances0.000description20
- 239000000758substrateSubstances0.000description15
- 229920005989resinPolymers0.000description14
- 239000011347resinSubstances0.000description14
- 239000000306componentSubstances0.000description13
- 239000004743PolypropyleneSubstances0.000description10
- 229920001155polypropylenePolymers0.000description10
- 239000002131composite materialSubstances0.000description9
- 229920001410MicrofiberPolymers0.000description8
- 229910001593boehmiteInorganic materials0.000description8
- FAHBNUUHRFUEAI-UHFFFAOYSA-MhydroxidooxidoaluminiumChemical compoundO[Al]=OFAHBNUUHRFUEAI-UHFFFAOYSA-M0.000description8
- 239000004744fabricSubstances0.000description7
- 230000008018meltingEffects0.000description7
- 238000002844meltingMethods0.000description7
- 229920000728polyesterPolymers0.000description7
- 229920002994synthetic fiberPolymers0.000description6
- 239000012209synthetic fiberSubstances0.000description6
- 239000012153distilled waterSubstances0.000description5
- 238000000635electron micrographMethods0.000description5
- 238000009833condensationMethods0.000description4
- 238000005470impregnationMethods0.000description4
- 239000004698PolyethyleneSubstances0.000description3
- 239000008358core componentSubstances0.000description3
- 230000000694effectsEffects0.000description3
- 229920001903high density polyethylenePolymers0.000description3
- 239000004700high-density polyethyleneSubstances0.000description3
- 229920000573polyethylenePolymers0.000description3
- 230000002940repellentEffects0.000description3
- 239000005871repellentSubstances0.000description3
- 238000012360testing methodMethods0.000description3
- MXRIRQGCELJRSN-UHFFFAOYSA-NO.O.O.[Al]Chemical compoundO.O.O.[Al]MXRIRQGCELJRSN-UHFFFAOYSA-N0.000description2
- 239000004952PolyamideSubstances0.000description2
- 239000011230binding agentSubstances0.000description2
- 239000011248coating agentSubstances0.000description2
- 238000000576coating methodMethods0.000description2
- 230000005494condensationEffects0.000description2
- 238000004925denaturationMethods0.000description2
- 230000036425denaturationEffects0.000description2
- 239000012784inorganic fiberSubstances0.000description2
- 238000005342ion exchangeMethods0.000description2
- 239000007788liquidSubstances0.000description2
- 238000000691measurement methodMethods0.000description2
- 229910052751metalInorganic materials0.000description2
- 239000002184metalSubstances0.000description2
- 239000000123paperSubstances0.000description2
- 229920003023plasticPolymers0.000description2
- 239000004033plasticSubstances0.000description2
- 229920002647polyamidePolymers0.000description2
- 229920001748polybutylenePolymers0.000description2
- 229920000139polyethylene terephthalatePolymers0.000description2
- 239000005020polyethylene terephthalateSubstances0.000description2
- 239000002002slurrySubstances0.000description2
- 238000005507sprayingMethods0.000description2
- 238000004381surface treatmentMethods0.000description2
- 229920001169thermoplasticPolymers0.000description2
- 239000004416thermosoftening plasticSubstances0.000description2
- 229920002972Acrylic fiberPolymers0.000description1
- 235000007516ChrysanthemumNutrition0.000description1
- 244000189548Chrysanthemum x morifoliumSpecies0.000description1
- 229920000742CottonPolymers0.000description1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-NEthanolChemical compoundCCOLFQSCWFLJHTTHZ-UHFFFAOYSA-N0.000description1
- 229920002292Nylon 6Polymers0.000description1
- 229920002302Nylon 6,6Polymers0.000description1
- 229920000297RayonPolymers0.000description1
- 239000002390adhesive tapeSubstances0.000description1
- 125000001931aliphatic groupChemical group0.000description1
- PNEYBMLMFCGWSK-UHFFFAOYSA-Naluminium oxideInorganic materials[O-2].[O-2].[O-2].[Al+3].[Al+3]PNEYBMLMFCGWSK-UHFFFAOYSA-N0.000description1
- 125000002029aromatic hydrocarbon groupChemical group0.000description1
- 230000015572biosynthetic processEffects0.000description1
- 206010061592cardiac fibrillationDiseases0.000description1
- 230000000052comparative effectEffects0.000description1
- 229920001577copolymerPolymers0.000description1
- 238000010036direct spinningMethods0.000description1
- 239000002270dispersing agentSubstances0.000description1
- 238000001035dryingMethods0.000description1
- 238000010041electrostatic spinningMethods0.000description1
- 238000011156evaluationMethods0.000description1
- 230000002600fibrillogenic effectEffects0.000description1
- 238000010304firingMethods0.000description1
- 239000005357flat glassSubstances0.000description1
- 125000000524functional groupChemical group0.000description1
- 238000010438heat treatmentMethods0.000description1
- 125000002887hydroxy groupChemical group[H]O*0.000description1
- 238000010030laminatingMethods0.000description1
- 239000000155meltSubstances0.000description1
- 239000002557mineral fiberSubstances0.000description1
- 239000002245particleSubstances0.000description1
- 230000000149penetrating effectEffects0.000description1
- 229920002239polyacrylonitrilePolymers0.000description1
- 229920001707polybutylene terephthalatePolymers0.000description1
- 229920000642polymerPolymers0.000description1
- 229920000098polyolefinPolymers0.000description1
- 230000002265preventionEffects0.000description1
- 238000012545processingMethods0.000description1
- 238000004080punchingMethods0.000description1
- 239000002994raw materialSubstances0.000description1
- 239000002964rayonSubstances0.000description1
- 238000009987spinningMethods0.000description1
- 239000003381stabilizerSubstances0.000description1
- 239000008399tap waterSubstances0.000description1
- 235000020679tap waterNutrition0.000description1
- 229920005992thermoplastic resinPolymers0.000description1
- 229920001187thermosetting polymerPolymers0.000description1
- 238000001771vacuum depositionMethods0.000description1
- 229920002554vinyl polymerPolymers0.000description1
- 239000003643water by typeSubstances0.000description1
- 239000002023woodSubstances0.000description1
Images
Landscapes
- Chemical Or Physical Treatment Of Fibers (AREA)
Description
Translated fromJapanese本発明は、不織布の繊維表面に付着したアルミニウム又はアルミニウム化合物が熱水変性処理された不織布に関し、親水性不織布が用いられる、加湿用基材、結露防止材、除湿機用基材などの用途、又は非親水性の不織布の親水化処理基材としての用途、又は撥水性成分などの含浸用基材としての用途、又は接着性を向上させた不織布としての用途、或いは導電性不織布としての用途などに好適な表面処理不織布及びその製造方法に関する。 The present invention relates to a nonwoven fabric in which aluminum or an aluminum compound attached to the fiber surface of the nonwoven fabric is hydrothermally modified, and uses a hydrophilic nonwoven fabric, such as a humidifying base material, a dew condensation preventing material, a dehumidifier base material, Or use as non-hydrophilic non-woven fabric as a hydrophilic treatment substrate, use as a substrate for impregnation of water repellent components, use as non-woven fabric with improved adhesion, use as conductive non-woven fabric, etc. The present invention relates to a surface-treated non-woven fabric and a method for producing the same.
従来より、車輌用、船舶用、航空機用あるいは建築用等のウインドウガラスなどに用いられる防曇機能を有する親水膜が提案されている。例えば、特許文献１には、基体上に、アルミニウムアルコキシドと安定化剤からなる塗布液を塗布し、乾燥、焼成をしてアモルフアスアルミナ膜を成膜し、次いで該アモルフアスアルミナ膜に熱水処理をし、乾燥、焼成して花弁状透明アルミナ膜を形成した後、その上に、Ｒ１ａＲ２ｂＲ３ｃＳｉＸ４−ａ−ｂ−ｃ〔Ｒ１，Ｒ２，Ｒ３：脂肪族炭化水素基および／あるいは芳香族炭化水素基。ａ，ｂ，ｃ：０〜３。ａ＋ｂ＋ｃ：０〜３。 Ｘ：水酸基または加水分解性官能基〕を主成分としてなる塗布溶液を塗布し、加熱処理して親水膜を被覆形成したことを特徴とする親水性被膜の形成法が記載されている。しかし、この方法によれば、焼成により消失しない基体にしか親水膜が形成できないという問題があった。Conventionally, a hydrophilic film having an antifogging function used for window glass for vehicles, ships, airplanes, buildings, etc. has been proposed. For example, in Patent Document 1, a coating liquid composed of an aluminum alkoxide and a stabilizer is applied to a substrate, dried and fired to form an amorphous alumina film, and then hot water is applied to the amorphous alumina film. After processing, drying and baking to form a petal-like transparent alumina film, R1a R2b R3c SiX4- abc [R1 , R2 , R3 : An aliphatic hydrocarbon group and / or an aromatic hydrocarbon group; a, b, c: 0-3. a + b + c: 0-3. A method for forming a hydrophilic film is described in which a coating solution containing X: hydroxyl group or hydrolyzable functional group] as a main component is applied and heat-treated to form a hydrophilic film. However, this method has a problem that a hydrophilic film can be formed only on a substrate that does not disappear by firing.
また、この問題を解決する方法として、特許文献２には、アルミニウム化合物を含む溶液を基体に塗布して、皮膜を形成し、これを特に熱処理することなく温水に浸漬する表面微細凹凸組織の低温形成法が記載されている。また、使用される基体としては、各種の金属基材、無機質基材、プラスチック基材、紙、木質系基材などが挙げられ、プラスチック基材としては、熱可塑性樹脂や熱硬化性樹脂から得られるフィルムや成形品が適用されることが記載されている。しかし、特許文献２では、フィルムや成形品などの外表面に親水皮膜を形成することが提案されており、多数の繊維から構成される布帛のような多孔性の基材については技術課題の対象外であった。 In addition, as a method for solving this problem, Patent Document 2 discloses that a low-temperature structure of a surface fine uneven structure in which a solution containing an aluminum compound is applied to a substrate to form a film, and this is immersed in warm water without heat treatment. A formation method is described. Examples of the substrate used include various metal substrates, inorganic substrates, plastic substrates, paper, and wood-based substrates. Plastic substrates are obtained from thermoplastic resins and thermosetting resins. It is described that applied film or molded product is applied. However, in Patent Document 2, it is proposed to form a hydrophilic film on the outer surface of a film, a molded product, etc., and a porous substrate such as a fabric composed of a large number of fibers is the subject of technical problems. It was outside.
また、樹脂板に親水性被膜を形成する別の方法として、特許文献３には、親水性を有するポリエチレンテレフタレート樹脂板にアルミ膜を蒸着し、このアルミ蒸着膜をベーマイト法により親水化させることを特徴とした版材用樹脂板の親水化処理方法が記載されている。しかし、特許文献３では、樹脂板の外表面に親水化皮膜を形成することが提案されており、多数の繊維から構成される布帛のような多孔性の基材については技術課題の対象外であった。 As another method for forming a hydrophilic film on a resin plate, Patent Document 3 discloses that an aluminum film is vapor-deposited on a hydrophilic polyethylene terephthalate resin plate and the aluminum vapor-deposited film is hydrophilized by a boehmite method. A characteristic hydrophilization treatment method for a resin plate for plate material is described. However, in Patent Document 3, it is proposed to form a hydrophilic film on the outer surface of the resin plate, and a porous substrate such as a fabric composed of a large number of fibers is out of the scope of the technical problem. there were.
また、特許文献４には、布地にバインダーを含むベーマイトゾルを塗布してベーマイト多孔質層を形成する布地の処理方法であって、布地にバインダーのゲル化剤を担持させた後でベーマイトゾルの塗布を行う布地の処理方法が記載されている。しかし、特許文献４では、ベーマイトの層にバインダーが含まれるため、ベーマイトの親水性などの特性が十分に働かず、原料としてのベーマイトの粒子が多量に必要となり効率が悪いという問題があった。また、布帛を構成する繊維表面に均一に且つ薄くベーマイトの層を形成することができないという問題があった。 Further, Patent Document 4 discloses a method for treating a fabric in which a boehmite sol containing a binder is applied to the fabric to form a boehmite porous layer. A method for treating a fabric for application is described. However, in Patent Document 4, since a boehmite layer contains a binder, characteristics such as the hydrophilicity of boehmite do not work sufficiently, and a large amount of boehmite particles as a raw material is required, resulting in poor efficiency. In addition, there is a problem that a boehmite layer cannot be formed uniformly and thinly on the surface of the fibers constituting the fabric.
本発明は、上記の問題を解決し、多数の繊維から構成される不織布からなる多孔性の基材に関し、特に構成繊維の繊維表面で変性処理されてなるアルミニウムを有した不織布に関し、親水性不織布としての加湿用基材、結露防止材、除湿機用基材などの用途、又は非親水性の不織布の親水化処理基材としての用途、又は撥水性成分などの含浸用基材としての用途、又は接着性を向上させた不織布としての用途、或いは導電性不織布としての用途などに好適な表面処理不織布及びその製造方法を提供することを課題とする。 The present invention relates to a porous base material comprising a non-woven fabric composed of a large number of fibers, and particularly to a non-woven fabric having aluminum that is modified on the fiber surface of the constituent fibers, and relates to a hydrophilic non-woven fabric. Use as a base material for humidification, anti-condensation material, base material for dehumidifier, etc., use as a hydrophilic treatment base material of non-hydrophilic nonwoven fabric, or use as a base material for impregnation of water repellent components, Alternatively, it is an object of the present invention to provide a surface-treated non-woven fabric suitable for use as a non-woven fabric with improved adhesion or a use as a conductive non-woven fabric and a method for producing the same.
本発明の課題を解決するための手段は、構成繊維の表面に蒸着又はスパッタリングによって付着したアルミニウムが熱水変性処理されてなることを特徴とする表面処理不織布である。また、本発明の課題を解決するための手段は、構成繊維の表面にアルミニウムを蒸着又はスパッタリングによって付着した後、熱水変性処理することを特徴とする表面処理不織布の製造方法である。
Means for solving the problems of the present invention is a surface-treated non-woven fabric obtained by subjectingaluminum adhered to the surface of a constituent fiberby vapor deposition or sputtering to a hydrothermal modification treatment. The means for solving the problems of the present invention is a method for producing a surface-treated nonwoven fabric, characterized in thataluminum is deposited on the surface of a constituent fiberby vapor deposition or sputtering, and then subjected to a hydrothermal modification treatment.
本発明によって、多数の繊維から構成される不織布からなる多孔性の基材に関し、特に構成繊維の繊維表面で変性処理されてなるアルミニウムを有した不織布に関し、親水性不織布としての加湿用基材、結露防止材、除湿機用基材などの用途、又は非親水性の不織布の親水化処理基材としての用途、又は撥水性成分などの含浸用基材としての用途、又は接着性を向上させた不織布としての用途、或いは導電性不織布としての用途などに好適な表面処理不織布及びその製造方法を提供することが可能となった。 According to the present invention, the present invention relates to a porous substrate composed of a nonwoven fabric composed of a large number of fibers, and particularly relates to a nonwoven fabric having aluminum that is modified on the fiber surface of the constituent fibers, and a humidifying substrate as a hydrophilic nonwoven fabric, Use as anti-condensation material, dehumidifier base material, use as non-hydrophilic non-woven fabric as hydrophilic treatment base material, use as a base material for impregnation of water repellent components, or improved adhesion It has become possible to provide a surface-treated non-woven fabric suitable for use as a non-woven fabric or use as a conductive non-woven fabric and a method for producing the same.
本発明の表面処理不織布の形態としては、合成繊維、天然繊維、半合成繊維、再生繊維および無機繊維などからなる不織布であれば特に限定されることはなく、例えば繊維長１５〜１００ｍｍの、捲縮数５〜３０個／インチを有する通常ステープル繊維と呼ばれる繊維をカード機などを使用して、繊維ウエブに形成した後、繊維同士を接着や交絡などによって結合する、一般的に乾式法と呼ばれる製法によって得られる不織布がある。また、乾式法に限らずに任意の不織布製法により、例えば湿式法、スパンボンド法、メルトブロー法、静電紡糸法又はフラッシュ紡糸法などによって形成される不織布を適用することができる。 The form of the surface treated nonwoven fabric of the present invention is not particularly limited as long as it is a nonwoven fabric composed of synthetic fibers, natural fibers, semi-synthetic fibers, regenerated fibers, inorganic fibers, and the like. A fiber called normal staple fiber having a reduced number of 5 to 30 / inch is formed on a fiber web by using a card machine or the like, and then the fibers are bonded to each other by adhesion or entanglement. There is a nonwoven fabric obtained by a manufacturing method. Moreover, the nonwoven fabric formed not only by a dry method but by arbitrary nonwoven fabric manufacturing methods, for example, a wet method, a spun bond method, a melt blow method, an electrostatic spinning method, a flash spinning method etc. is applicable.
前記不織布を構成する繊維としては、ポリエチレンテレフタレート、ポリブチレンテレフタレートなどのポリエステル系繊維、ナイロン６、ナイロン６６などのポリアミド系繊維、ポリプロピレン、ポリエチレンなどのポリオレフィン系繊維、ポリアクリロニトリルなどのアクリル系繊維、ポリビニルアルコール繊維および合成パルプなどの合成繊維に限らず、レーヨンなどの半合成繊維、あるいは綿およびパルプ繊維などの天然繊維をあげることができる。また、金属繊維または鉱物繊維などの無機繊維をあげることができる。 Examples of fibers constituting the nonwoven fabric include polyester fibers such as polyethylene terephthalate and polybutylene terephthalate, polyamide fibers such as nylon 6 and nylon 66, polyolefin fibers such as polypropylene and polyethylene, acrylic fibers such as polyacrylonitrile, and polyvinyl. Not only synthetic fibers such as alcohol fibers and synthetic pulp, but also semi-synthetic fibers such as rayon, or natural fibers such as cotton and pulp fibers can be used. Moreover, inorganic fibers, such as a metal fiber or a mineral fiber, can be mention | raise | lifted.
前記繊維の断面形状も特に限定されることなく、円形、楕円形、偏平形状に限らず、三角、Ｙ型、Ｔ型、Ｕ型、星型、ドッグボーン型等いわゆる異型断面形状をとるものであってもよい。 The cross-sectional shape of the fiber is not particularly limited, and is not limited to a circular shape, an elliptical shape, or a flat shape, but has a so-called atypical cross-sectional shape such as a triangular shape, a Y shape, a T shape, a U shape, a star shape, or a dogbone shape. There may be.
前記繊維の繊維径も特に限定されることなく、一般的な用途としては、０．１〜２００μｍが好ましく、０．３〜１００μｍがより好ましく、０．５〜７０μｍが更に好ましい。また、５μｍ以下の極細繊維としては、直接紡糸法により得られる極細繊維、海島型の複合繊維の海部分を溶解除去して得られる極細繊維、複合繊維を機械的にまたは水流により、あるいは水中に分散することにより各樹脂成分に離解させて得られる極細繊維、あるいはフィブリル化して得られる極細繊維などがある。 The fiber diameter of the fiber is not particularly limited, and as a general application, 0.1 to 200 μm is preferable, 0.3 to 100 μm is more preferable, and 0.5 to 70 μm is still more preferable. In addition, as ultrafine fibers of 5 μm or less, ultrafine fibers obtained by direct spinning method, ultrafine fibers obtained by dissolving and removing the sea part of sea-island type composite fibers, composite fibers are mechanically or by water flow, or in water There are ultrafine fibers obtained by dispersing each resin component by dispersing, or ultrafine fibers obtained by fibrillation.
前記不織布は、具体的には、例えば熱可塑性合成繊維のみからなる繊維ウエブを部分的に熱接着して得ることも可能であり、また、熱可塑性合成繊維と熱接着性繊維とを含む繊維ウエブか、或いは熱接着性繊維のみの繊維ウエブを加熱処理して繊維同士を接着することによって得ることができる。このような熱接着性繊維としては、例えば他の繊維よりも融点が低く他の繊維を熱接着することのできる単一樹脂成分からなる繊維や、他の繊維よりも融点が低く他の繊維を熱接着することのできる低融点成分を繊維表面に有する複合繊維がある。このような複合繊維には、その横断面形状が例えば、低融点成分を繊維表面に有する芯鞘型やサイドバイサイド型などの複合繊維があり、またその材質は例えば、共重合ポリエステル／ポリエステル、ポリブチレン／ポリエステル、共重合ポリブチレン／ポリエステル、共重合ポリプロピレン／ポリプロピレン、ポリプロピレン／ポリアミド、ポリエチレン／ポリプロピレン、ポリプロピレン／ポリエステル、ポリエチレン／ポリエステルなどの繊維形成性重合体の組み合わせからなる複合繊維がある。また、該熱接着性繊維の全体の繊維に占める割合は好ましくは１０重量％以上であり、更に好ましくは２０重量％以上である。 Specifically, the nonwoven fabric can be obtained, for example, by partially thermally bonding a fiber web made only of thermoplastic synthetic fibers, and a fiber web containing thermoplastic synthetic fibers and thermoadhesive fibers. Alternatively, it can be obtained by heat-treating a fiber web of only heat-adhesive fibers to bond the fibers together. Examples of such heat-adhesive fibers include fibers composed of a single resin component having a lower melting point than other fibers and capable of thermally bonding other fibers, and other fibers having a lower melting point than other fibers. There are composite fibers having a low melting point component that can be thermally bonded on the fiber surface. Such composite fibers include, for example, core-sheath type and side-by-side type composite fibers having a low melting point component on the fiber surface, and the material thereof is, for example, copolymer polyester / polyester, polybutylene / There are composite fibers made of a combination of fiber-forming polymers such as polyester, copolymerized polybutylene / polyester, copolymerized polypropylene / polypropylene, polypropylene / polyamide, polyethylene / polypropylene, polypropylene / polyester, polyethylene / polyester. The proportion of the heat-adhesive fibers in the total fibers is preferably 10% by weight or more, and more preferably 20% by weight or more.
また、前記不織布は嵩高な形態のものも適用可能であり、例えば乾式法によって得られる繊維ウエブを積層するか、あるいはスパンボンド法によって得られる長繊維ウエブにニードルパンチなどの処理を施して絡合させて得られる不織布が可能である。また、繊維ウエブに接着材を含浸またはスプレーして得る不織布も可能である。また、乾式法または湿式法で得られる繊維ウエブまたは抄紙シートに高圧柱状水流を噴射して水流絡合させて得られる不織布も可能である。これら何れの不織布も紙または織編物と比較して、繊維一本一本が束なることなく離間して積層されているため、多孔性に富む構造を有しており、繊維表面の面積が有効に活用できる構造となっており、アルミニウムが熱水変性処理されていることによる効果を顕著に発揮することができる。
In addition, the nonwoven fabric can be applied in a bulky form, for example, a fiber web obtained by a dry method is laminated, or a long fiber web obtained by a spunbond method is subjected to a treatment such as a needle punch and entangled. Nonwoven fabrics obtained by making it possible are possible. A nonwoven fabric obtained by impregnating or spraying a fiber web with an adhesive is also possible. Moreover, the nonwoven fabric obtained by injecting a high-pressure columnar water stream on the fiber web or papermaking sheet obtained by a dry method or a wet method, and making it hydroentangled is also possible. Compared to paper or woven or knitted fabric, each of these non-woven fabrics has a structure rich in porosity because the fibers are laminated separately without being bundled, and the area of the fiber surface is effective. Therefore, the effect ofaluminum being hydrothermally modified can be remarkably exhibited.
また、前記不織布は極細繊維からなる不織布も適用可能である。このような不織布としては、例えば二成分以上の繊維形成性樹脂成分が繊維の長手方向に積層されることにより形成されてなる繊維であって、断面形状が例えば菊花形状を有する繊維であって、水流により各成分に分割可能な繊維を用いて、乾式法によって繊維ウエブを形成した後、高圧柱状水流を噴射して分割と同時に水流絡合により得られる不織布がある。極細繊維からなる不織布は、繊維表面の面積が格段に広くなっていることから、繊維表面の特性が更に有効に活用できる構造となっており、アルミニウムが熱水変性処理されていることによる効果を一層顕著に発揮することができる。
Moreover, the nonwoven fabric which consists of an ultrafine fiber is also applicable. As such a nonwoven fabric, for example, a fiber formed by laminating two or more fiber-forming resin components in the longitudinal direction of the fiber, and the cross-sectional shape is, for example, a fiber having a chrysanthemum shape, There is a nonwoven fabric obtained by forming a fiber web by a dry method using fibers that can be divided into each component by a water flow, and then spraying a high-pressure columnar water flow to obtain the hydroentanglement simultaneously with the division. Non-woven fabric made of ultrafine fibers has a structure that allows the fiber surface properties to be used more effectively because the area of the fiber surface is much wider, and the effect ofaluminum being hydrothermally modified. It can be exhibited more remarkably.
前記不織布は、以上述べたように様々な形態をとり得るが、これらの中で、構成繊維が熱接着性繊維によって結合した不織布、あるいはニードルパンチや水流絡合により絡合して結合した不織布であれば、構成繊維が接着剤によって結合した不織布と比較して、繊維表面の特性が有効に活用できる構造となっており、アルミニウムが熱水変性処理されていることによる効果を顕著に発揮することができるので好ましい。構成繊維が接着剤によって結合した不織布の場合、構成繊維を結合する目的のためだけに構成繊維に対して２０〜４０質量％もの接着剤が必要となり、その分コスト高となるばかりか、接着剤によって繊維表面全体の面積も少なくなることとなる。さらに、接着剤が劣化する場合もあることを考慮すると、前記不織布の構成繊維が熱接着性繊維または絡合により結合していることが好ましい。
The non-woven fabric can take various forms as described above, and among these, the non-woven fabric in which the constituent fibers are bonded by thermal adhesive fibers, or the non-woven fabric bonded by entanglement by needle punching or hydroentanglement. If present, compared to a nonwoven fabric in which the constituent fibers are bonded by an adhesive, the structure of the fiber surface can be used effectively, and the effect ofaluminum being hydrothermally modified is remarkably exhibited. Is preferable. In the case of a nonwoven fabric in which the constituent fibers are bonded by an adhesive, an adhesive of 20 to 40% by mass is required for the constituent fibers only for the purpose of binding the constituent fibers, which not only increases the cost, but also the adhesive. Therefore, the area of the entire fiber surface is also reduced. Furthermore, considering that the adhesive may deteriorate, it is preferable that the constituent fibers of the non-woven fabric are bonded by thermal adhesive fibers or entanglement.
本発明の表面処理不織布では、前記不織布の構成繊維の表面に付着したアルミニウムが熱水変性処理されている。構成繊維の表面に付着したアルミニウムが熱水変性処理されている形態としては、例えば、構成繊維の表面に真空蒸着やスパッタリングなどの方法でアルミニウムを付着させた後、熱水変成処理を行って得られる形態がある。なお付着条件を適宜設定することにより、アルミニウムの付着量を変えることが可能であり、またアルミニウムの付着の形態として、前記不織布の構成繊維全体に付着させることも、前記不織布の表面部分に有する構成繊維に付着させることも、あるいは前記不織布に部分的に付着させることも可能である。
In the surface-treated non-woven fabric of the present invention, thealuminum adhering to the surface of the constituent fiber of the non-woven fabricis hydrothermally modified. The form in which thealuminum adhering to the surface of the constituent fiberis hydrothermally modified is obtained, for example, by applyingaluminum to the surface of the constituent fiber by a method such as vacuum deposition or sputtering and then performing a hydrothermal modification treatment. There are forms. In addition, it is possible to change the adhesion amount of aluminum by appropriately setting the adhesion conditions, and as a form of aluminum adhesion, it is also possible to adhere to the entire constituent fibers of the nonwoven fabric on the surface portion of the nonwoven fabric. It can be adhered to the fiber or partially adhered to the nonwoven fabric.
また、アルミニウムを付着させた後の熱水変成処理について説明すると、処理に使用する水としては、水道水、イオン交換水、蒸留水、純水、またはイオン交換後に蒸留した蒸留水などの液体状の水、或いはこれらの水を使った気体状の水蒸気など、いずれも使用可能であるが、特に、蒸留水が好ましく、例えば電気伝導度１０μＳ／ｃｍ以下、好ましくは電気伝導度１．０μＳ／ｃｍ以下の水を用いることが可能である。また、処理に使用する水の温度としては、水和酸化物としてベーマイトが形成される条件が好ましく、常圧下では６０〜１００℃が好ましく、８０〜１００℃がより好ましく、９０〜１００℃の範囲であることが更に好ましい。このようにして、構成繊維の表面に蒸着により付着したアルミニウムが熱水変性処理された後の繊維表面の状態の一例を図１の電子顕微鏡写真に示す。図１によれば、構成繊維の周囲を取り巻くように繊維表面全体に微細な凹凸組織が形成されていることが分かる。 Further, the hydrothermal modification treatment after aluminum is attached will be described. The water used for the treatment is liquid water such as tap water, ion exchange water, distilled water, pure water, or distilled water distilled after ion exchange. Water or gaseous water vapor using these waters can be used, but distilled water is particularly preferable, for example, electric conductivity of 10 μS / cm or less, preferably electric conductivity of 1.0 μS / cm. The following water can be used. Further, the temperature of water used for the treatment is preferably a condition under which boehmite is formed as a hydrated oxide, preferably 60 to 100 ° C., more preferably 80 to 100 ° C. under normal pressure, and a range of 90 to 100 ° C. More preferably. Thus, an example of the state of the fiber surface after the hot water denaturation process of the aluminum adhering to the surface of a constituent fiber by vapor deposition is shown in the electron micrograph of FIG. According to FIG. 1, it can be seen that a fine uneven structure is formed on the entire fiber surface so as to surround the periphery of the constituent fibers.
本発明の表面処理不織布は親水性を有しており、親水性の程度は接触角を測定することによって評価することができる。この評価方法によれば、本発明の表面処理不織布の接触角は熱水変性処理前に較べ小さくなり親水性が向上していることを確認することができる。なお、接触角の測定方法は、次に示す「接触角の測定方法」による。また、本発明では接触角が９０°以下のものに対して親水性があると評価している。また、不織布内部へ毛細管現象などにより浸透することによって、接触角が測定できない場合は、親水性があると評価している。また、処理前で接触角が９０°以下の不織布でも本発明の表面処理不織布とすることで、接触角をさらに低下させることが可能である。 The surface-treated nonwoven fabric of the present invention has hydrophilicity, and the degree of hydrophilicity can be evaluated by measuring the contact angle. According to this evaluation method, it can be confirmed that the contact angle of the surface-treated nonwoven fabric of the present invention is smaller than that before the hydrothermal modification treatment and the hydrophilicity is improved. The contact angle is measured by the following “contact angle measurement method”. Further, in the present invention, it is evaluated that the contact angle is 90 ° or less with hydrophilicity. In addition, if the contact angle cannot be measured by penetrating into the nonwoven fabric due to capillary action or the like, it is evaluated as having hydrophilicity. Moreover, even if the non-woven fabric has a contact angle of 90 ° or less before the treatment, the contact angle can be further reduced by using the surface-treated non-woven fabric of the present invention.
（接触角の測定方法）
表面処理不織布などの試験片を、平坦な表面を有するサンプル支持具の平面上に載置して、試験片の両端を粘着テープで止める。次いで、この試験片の平面の純水との接触角を協和界面科学株式会社製の接触角計ＣＡ−ＳミクロＩＩ型を用いて測定する。また、純水を滴下してから３分間経過後に接触角の測定を行う。(Measurement method of contact angle)
A test piece such as a surface-treated non-woven fabric is placed on the flat surface of a sample support having a flat surface, and both ends of the test piece are fixed with an adhesive tape. Subsequently, the contact angle with the pure water of the flat surface of this test piece is measured using a contact angle meter CA-S Micro II type manufactured by Kyowa Interface Science Co., Ltd. The contact angle is measured after 3 minutes have passed since the pure water was dropped.
本発明の表面処理不織布は、構成繊維の表面に付着したアルミニウムが熱水変性処理されているので、多孔性を有すると共に親水性に優れている。したがって、このような特性を有効に利用して、加湿用基材、結露防止材、除湿機用基材などの用途、または非親水性の不織布の親水化処理基材としての用途、または撥水性成分などの含浸用基材としての用途、または接着性を向上させた不織布としての用途、あるいは導電性不織布としての用途などに好適である。
The surface-treated non-woven fabric of the present invention is porous and has excellent hydrophilicity becausealuminum attached to the surface of the constituent fiberis subjected to a hydrothermal modification treatment. Therefore, by effectively utilizing such characteristics, it can be used as a base material for humidification, a dew condensation prevention material, a base material for a dehumidifier, or as a hydrophilic treatment base material of a non-hydrophilic nonwoven fabric, or water repellency. It is suitable for use as a base material for impregnation of components, etc., as a non-woven fabric with improved adhesion, or as a conductive non-woven fabric.
以下、本発明の実施例につき説明するが、これは発明の理解を容易とするための好適例に過ぎず、本願発明はこれら実施例の内容に限定されるものではない。 Examples of the present invention will be described below, but these are only suitable examples for facilitating understanding of the invention, and the present invention is not limited to the contents of these examples.
（実施例１）
海島型の複合繊維の海部分を溶解除去して得られる極細繊維であるポリプロピレン繊維（繊度０．０３デシテックスまたは繊維径２μｍ、繊維長２ｍｍ）２０質量％と、芯成分がポリプロピレン樹脂で鞘成分が融点１３８℃の高密度ポリエチレン樹脂からなる熱接着性の複合繊維（繊度０．８デシテックス、繊維長５ｍｍ）８０質量％とを、分散剤を含む水中に分散させてスラリーを形成した。次いで、このスラリーを手漉き装置で抄紙して繊維シートとした後１４５℃で乾燥させると共に構成繊維を熱接着性繊維により結合した湿式不織布を得た。この湿式不織布の接触角は約１４５°であった。
次いで、この湿式不織布の両面にアルミニウムを蒸着させて、構成繊維の表面にアルミニウムを付着させた。次いで、このアルミニウムが付着した湿式不織布を、電気伝導度１．０μＳ／ｃｍ以下の水温９５℃の蒸留水の中に浸漬させることによって、付着したアルミニウムを熱水変性処理し、その後乾燥させることにより、面密度５０ｇ／ｍ２の表面処理不織布を得た。この表面処理不織布の接触角は約２３°であり、処理前の湿式不織布と較べ親水化されていた。また、この表面処理不織布の表面電子顕微鏡写真を図１に示す。図１から明らかなように、構成繊維である繊維径２μｍの繊維の周囲を取り巻くように繊維表面全体に微細な凹凸組織が形成されていた。Example 1
20% by mass of polypropylene fiber (fineness 0.03 dtex or fiber diameter 2 μm, fiber length 2 mm) which is an ultrafine fiber obtained by dissolving and removing the sea part of the sea-island type composite fiber, the core component is polypropylene resin and the sheath component is A slurry was formed by dispersing 80% by mass of a heat-adhesive conjugate fiber (fineness 0.8 dtex, fiber length 5 mm) made of a high-density polyethylene resin having a melting point of 138 ° C. in water containing a dispersant. Next, the slurry was made into a fiber sheet by papermaking with a hand-pulling device, and dried at 145 ° C., and a wet nonwoven fabric in which the constituent fibers were bonded by heat-adhesive fibers was obtained. The contact angle of this wet nonwoven fabric was about 145 °.
Subsequently, aluminum was vapor-deposited on both surfaces of this wet nonwoven fabric, and aluminum was made to adhere to the surface of a constituent fiber. Next, the wet non-woven fabric to which the aluminum is adhered is immersed in distilled water having an electric conductivity of 1.0 μS / cm or less and a water temperature of 95 ° C., so that the adhered aluminum is subjected to hydrothermal modification, and then dried. A surface-treated nonwoven fabric having a surface density of 50 g / m2 was obtained. The contact angle of this surface-treated nonwoven fabric was about 23 °, and it was hydrophilized compared to the wet nonwoven fabric before treatment. Moreover, the surface electron micrograph of this surface treatment nonwoven fabric is shown in FIG. As is clear from FIG. 1, a fine uneven structure was formed on the entire fiber surface so as to surround the periphery of the fiber having a fiber diameter of 2 μm, which is a constituent fiber.
（比較例１）
熱水変性処理を行わないこと以外は実施例１と同様にして、アルミニウムが付着した湿式不織布を得た。このアルミニウムが付着した湿式不織布は面密度５０ｇ／ｍ２であった。このアルミニウムが付着した湿式不織布の接触角は約１２８°であり、アルミニウム付着処理前の湿式不織布と較べ、接触角の低下は見られたが、親水性にはなっていなかった。また、このアルミニウムが付着した湿式不織布の表面電子顕微鏡写真を図２に示す。図２では、構成繊維である繊維径２μｍの繊維の周囲には微細な凹凸組織が形成されていなかった。(Comparative Example 1)
A wet nonwoven fabric with aluminum attached thereto was obtained in the same manner as in Example 1 except that the hot water denaturation treatment was not performed. The wet nonwoven fabric to which this aluminum was attached had a surface density of 50 g / m2 . The contact angle of the wet nonwoven fabric to which the aluminum adhered was about 128 °, and although the contact angle was reduced as compared with the wet nonwoven fabric before the aluminum adhesion treatment, it was not hydrophilic. Moreover, the surface electron micrograph of the wet nonwoven fabric to which this aluminum adhered is shown in FIG. In FIG. 2, the fine uneven | corrugated structure | tissue was not formed around the fiber with a fiber diameter of 2 micrometers which is a constituent fiber.
（実施例２）
芯成分がポリプロピレン樹脂で鞘成分が融点１３８℃の高密度ポリエチレン樹脂からなる捲縮を有する熱接着性の複合繊維（繊度１．７デシテックス、繊維長５５ｍｍ）７０質量％と、芯成分がポリプロピレン樹脂で鞘成分が融点１３８℃の高密度ポリエチレン樹脂からなる捲縮を有する熱接着性の複合繊維（繊度１．４デシテックス、繊維長３５ｍｍ）３０質量％とを混綿して、次いでカード機により繊維フリースを形成して、この繊維フリースをクロスレイにより積層させて繊維ウェブを得た。次いで、この繊維ウェブを通気性の支持体上に載置して１４５℃熱風を繊維ウェブに通過させて、構成繊維を熱接着性繊維により結合した乾式不織布を得た。この乾式不織布の接触角は約１４８°であった。
次いで、この乾式不織布の片面にアルミニウムを蒸着させて、構成繊維の表面にアルミニウムを付着させた。次いで、このアルミニウムが付着した乾式不織布を、電気伝導度１．０μＳ／ｃｍ以下の水温９０℃の蒸留水の中に浸漬させることによって、付着したアルミニウムを熱水変性処理し、その後乾燥させることにより、面密度８０ｇ／ｍ２の表面処理不織布を得た。この表面処理不織布の接触角は約３６°であり、処理前の乾式不織布と較べ親水化されていた。(Example 2)
70% by mass of a heat-adhesive composite fiber (fineness 1.7 decitex, fiber length 55 mm) having a crimp made of a high-density polyethylene resin having a core component made of polypropylene resin and a sheath component melting point 138 ° C., and the core component made of polypropylene resin And 30% by mass of a heat-adhesive composite fiber (fineness 1.4 decitex, fiber length 35 mm) having a crimp made of a high-density polyethylene resin having a melting point of 138 ° C. and then a fiber fleece by a card machine. And the fiber fleece was laminated by a cross lay to obtain a fiber web. Next, this fiber web was placed on a breathable support and hot air of 145 ° C. was passed through the fiber web to obtain a dry nonwoven fabric in which the constituent fibers were bonded by heat-bonding fibers. The contact angle of this dry nonwoven fabric was about 148 °.
Subsequently, aluminum was vapor-deposited on one side of the dry nonwoven fabric, and aluminum was adhered to the surface of the constituent fibers. Next, the dry-type non-woven fabric to which the aluminum is attached is immersed in distilled water having an electric conductivity of 1.0 μS / cm or less and a water temperature of 90 ° C., so that the attached aluminum is hydrothermally modified and then dried. A surface-treated nonwoven fabric having a surface density of 80 g / m2 was obtained. The contact angle of this surface-treated nonwoven fabric was about 36 °, and it was hydrophilized compared to the dry nonwoven fabric before treatment.
Claims (3)
Translated fromJapanesePriority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005101944AJP4602141B2 (en) | 2005-03-31 | 2005-03-31 | Surface treated nonwoven fabric and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005101944AJP4602141B2 (en) | 2005-03-31 | 2005-03-31 | Surface treated nonwoven fabric and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006283207A JP2006283207A (en) | 2006-10-19 |
| JP4602141B2true JP4602141B2 (en) | 2010-12-22 |
Family
ID=37405411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005101944AExpired - Fee RelatedJP4602141B2 (en) | 2005-03-31 | 2005-03-31 | Surface treated nonwoven fabric and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4602141B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5224972B2 (en)* | 2008-08-21 | 2013-07-03 | ルビコン株式会社 | Hydrogen generation unit |
| JP2010065327A (en)* | 2008-09-08 | 2010-03-25 | Shinshu Univ | Conductor-coated fiber assembly and method for producing the same |
| KR101976255B1 (en)* | 2017-03-06 | 2019-05-07 | 한양대학교 산학협력단 | Protective Film and the Manufacturing Method Thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05193282A (en)* | 1992-01-23 | 1993-08-03 | Mitsubishi Heavy Ind Ltd | Treatment for converting resin board for printing material to hydrophilic nature |
| JP2004518795A (en)* | 2001-01-30 | 2004-06-24 | ザ、プロクター、エンド、ギャンブル、カンパニー | Coating composition for surface modification |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040158214A1 (en)* | 2003-02-10 | 2004-08-12 | The Procter & Gamble Company | Disposable absorbent article comprising a durable hydrophilic topsheet |
- 2005
- 2005-03-31JPJP2005101944Apatent/JP4602141B2/ennot_activeExpired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05193282A (en)* | 1992-01-23 | 1993-08-03 | Mitsubishi Heavy Ind Ltd | Treatment for converting resin board for printing material to hydrophilic nature |
| JP2004518795A (en)* | 2001-01-30 | 2004-06-24 | ザ、プロクター、エンド、ギャンブル、カンパニー | Coating composition for surface modification |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006283207A (en) | 2006-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2015115418A1 (en) | Multilayer filtration material for filter, method for manufacturing same, and air filter | |
| TWI778006B (en) | Self-heating sheet-like material for absorbing and desorbing moisture, moisture absorbing and desorbing body, and moisture absorbing and desorbing device using the same | |
| KR20180089526A (en) | Nonwoven fabric separator for lead-acid batteries and lead-acid batteries using the same | |
| WO2008032388A1 (en) | Air filter material | |
| WO2007040104A1 (en) | Nonwoven fabric for filters | |
| CN113614300B (en) | Inorganic fiber molded article, mat for exhaust gas purification device, and exhaust gas purification device | |
| US7153793B2 (en) | Multilayer nonwovens incorporating differential cross-sections | |
| JP2002069824A (en) | Sound absorbing material including meltblown nonwoven fabric | |
| KR101071193B1 (en) | Nonwoven fabric for sound absorption | |
| JP4602141B2 (en) | Surface treated nonwoven fabric and method for producing the same | |
| JP6493276B2 (en) | Sound absorbing material | |
| US20060260736A1 (en) | Method of making a dual performance nonwoven and the products therefrom | |
| JP4361201B2 (en) | Sound-absorbing material including meltblown nonwoven fabric | |
| KR101252341B1 (en) | Polypropylene needle-punching non-woven fabric for an oil-absorber having excellent mechanical strength and manufacturing method thereof | |
| JP3777126B2 (en) | Thin filter | |
| JPH11226337A (en) | Activated carbon fiber sheet for filter | |
| JPS61281454A (en) | Separator for battery | |
| JP2559872B2 (en) | Heat resistant non-woven fabric | |
| JP5142816B2 (en) | Fiber structure for vaporization filter | |
| EP3990274B1 (en) | Nonwoven fibrous web | |
| JP3991576B2 (en) | FILTER ELEMENT, MANUFACTURING METHOD THEREOF, AND FILTER | |
| JP6143503B2 (en) | Filter element and manufacturing method thereof | |
| JP2013034923A (en) | Flame-resistant filter | |
| JP2012167412A (en) | Water-liftable fiber structure | |
| JP2010070859A (en) | Evaporating nonwoven fabric |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination | Free format text:JAPANESE INTERMEDIATE CODE: A621 Effective date:20080107 | |
| A977 | Report on retrieval | Free format text:JAPANESE INTERMEDIATE CODE: A971007 Effective date:20100618 | |
| A131 | Notification of reasons for refusal | Free format text:JAPANESE INTERMEDIATE CODE: A131 Effective date:20100713 | |
| A521 | Written amendment | Free format text:JAPANESE INTERMEDIATE CODE: A523 Effective date:20100830 | |
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) | Free format text:JAPANESE INTERMEDIATE CODE: A01 Effective date:20100928 | |
| A01 | Written decision to grant a patent or to grant a registration (utility model) | Free format text:JAPANESE INTERMEDIATE CODE: A01 | |
| A61 | First payment of annual fees (during grant procedure) | Free format text:JAPANESE INTERMEDIATE CODE: A61 Effective date:20100929 | |
| FPAY | Renewal fee payment (event date is renewal date of database) | Free format text:PAYMENT UNTIL: 20131008 Year of fee payment:3 | |
| R150 | Certificate of patent or registration of utility model | Free format text:JAPANESE INTERMEDIATE CODE: R150 | |
| FPAY | Renewal fee payment (event date is renewal date of database) | Free format text:PAYMENT UNTIL: 20131008 Year of fee payment:3 | |
| S531 | Written request for registration of change of domicile | Free format text:JAPANESE INTERMEDIATE CODE: R313531 | |
| FPAY | Renewal fee payment (event date is renewal date of database) | Free format text:PAYMENT UNTIL: 20131008 Year of fee payment:3 | |
| R350 | Written notification of registration of transfer | Free format text:JAPANESE INTERMEDIATE CODE: R350 | |
| LAPS | Cancellation because of no payment of annual fees |