JP2006200082A - Functional fibrous structural material - Google Patents
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- JP2006200082A JP2006200082A JP2005014026A JP2005014026A JP2006200082A JP 2006200082 A JP2006200082 A JP 2006200082A JP 2005014026 A JP2005014026 A JP 2005014026A JP 2005014026 A JP2005014026 A JP 2005014026A JP 2006200082 A JP2006200082 A JP 2006200082A
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- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
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Images
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- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
本発明は、機能性微粒子が疎水性バインダー樹脂を介して繊維構造体に付与された機能性繊維構造体であって、ソフトな風合いを損なうことなく特に優れた洗濯耐久性を有する機能性繊維構造体に関するものである。 The present invention is a functional fiber structure in which functional fine particles are imparted to a fiber structure via a hydrophobic binder resin, and has a particularly excellent washing durability without impairing the soft texture. It is about the body.
近年、快適生活を目指した生活環境の多様化に伴い、消臭性や抗菌性などの各種機能を有する繊維やそれを用いた繊維構造体が提案されている。例えば、消臭性などの機能性微粒子を含有する繊維形成性熱可塑性高分子化合物を溶融紡糸して得られた機能性繊維や、機能性微粒子を後加工によりバインダー樹脂を介して繊維構造体に付与して得られた機能性繊維構造体などが提案されている。 In recent years, with the diversification of living environments aimed at comfortable living, fibers having various functions such as deodorizing properties and antibacterial properties and fiber structures using the same have been proposed. For example, functional fibers obtained by melt spinning fiber-forming thermoplastic polymer compounds containing functional fine particles such as deodorant, and functional fine particles are converted into fiber structures via a binder resin by post-processing. A functional fiber structure obtained by the application has been proposed.
しかしながら、機能性微粒子を含有する繊維形成性熱可塑性高分子化合物を溶融紡糸して得られた機能性繊維は、ソフトな風合いと良好な耐久性を有するものの、機能性微粒子の種類によっては、紡糸工程において機能性微粒子の機能が低下する、紡糸性が損なわれるという問題があった。 However, functional fibers obtained by melt spinning fiber-forming thermoplastic polymer compounds containing functional fine particles have soft texture and good durability, but depending on the type of functional fine particles, spinning In the process, there was a problem that the function of the functional fine particles was lowered and the spinnability was impaired.
一方、消臭などの機能性を有する機能性微粒子を、後加工によりバインダー樹脂を介して繊維構造体に付与して得られた機能性繊維構造体では、バインダー樹脂により繊維構造体の風合いが硬くなり、また機能の耐久性が十分でないという問題があった。後加工により繊維構造体の風合いが硬くなることを防ぐ方法として、繊維構造体を構成する単糸繊維にバインダー樹脂を皮膜状に付着させることも提案されている（例えば特許文献１参照）が、耐久性の点でいまだ十分とはいえなかった。
本発明は上記の背景に鑑みなされたものであり、その目的は、機能性微粒子が疎水性バインダー樹脂を介して繊維構造体に付与された機能性繊維構造体であって、ソフトな風合いを損なうことなく特に優れた耐久性を有する機能性繊維構造体を提供することにある。 The present invention has been made in view of the above-mentioned background, and an object thereof is a functional fiber structure in which functional fine particles are imparted to a fiber structure via a hydrophobic binder resin, and the soft texture is impaired. An object of the present invention is to provide a functional fiber structure having particularly excellent durability.
本発明者は、上記目的を達成するため鋭意検討した結果、疎水性バインダー樹脂と機能性微粒子を含む加工剤を繊維構造体に付与し加熱乾燥させた後、さらにその上に撥水処理を施すことにより洗濯耐久性が大幅に向上することを見出し、さらに鋭意検討を重ねることにより本発明に想到した。 As a result of intensive studies to achieve the above object, the present inventor applied a processing agent containing a hydrophobic binder resin and functional fine particles to the fiber structure, dried by heating, and then subjected to a water repellent treatment thereon. As a result, the inventors have found that the washing durability is greatly improved, and have further intensively studied to arrive at the present invention.
かくして、本発明によれば「繊維構造体を構成する単糸繊維に皮膜状に均一に付着した疎水性バインダー樹脂により、機能性微粒子が付着してなる繊維構造体であって、単糸繊維に付着した前記疎水性バインダー樹脂からなる皮膜層の上に撥水剤を含む撥水層が積層されてなることを特徴とする機能性繊維構造体。」が提供される。 Thus, according to the present invention, “a fiber structure in which functional fine particles are adhered by a hydrophobic binder resin uniformly adhered in a film to the single yarn fibers constituting the fiber structure, There is provided a functional fiber structure characterized in that a water-repellent layer containing a water-repellent agent is laminated on a film layer made of the hydrophobic binder resin attached.
その際、前記機能性微粒子の径ｄ（μｍ）と前記疎水性バインダー樹脂の皮膜厚みｔ（μｍ）との比ｄ／ｔが１．５〜１０の範囲であることが好ましい。前記機能性微粒子の径としては０．１〜２μｍの範囲であることが好ましく、機能性微粒子が金属酸化物からなる消臭性微粒子であることが好ましい。また、疎水性バインダー樹脂からなる皮膜層の厚みとしては０．０１〜１．３μｍの範囲内であることが好ましい。かかる疎水性バインダー樹脂が架橋型シリコーン樹脂であることが好ましい。前記撥水層の厚みとしては０．００１〜０．１μｍの範囲内であることが好ましい。 In that case, it is preferable that ratio d / t of the diameter d (micrometer) of the said functional fine particle and the film thickness t (micrometer) of the said hydrophobic binder resin is 1.5-10. The diameter of the functional fine particles is preferably in the range of 0.1 to 2 μm, and the functional fine particles are preferably deodorant fine particles made of a metal oxide. Moreover, it is preferable that it is in the range of 0.01-1.3 micrometers as thickness of the membrane | film | coat layer which consists of hydrophobic binder resin. Such a hydrophobic binder resin is preferably a cross-linked silicone resin. The thickness of the water repellent layer is preferably in the range of 0.001 to 0.1 μm.
本発明の機能性繊維構造体において、機能性繊維構造体の形態が布帛状であることが好ましい。また、機能性繊維構造体を構成する単糸繊維がポリエステル樹脂からなることが好ましい。さらには、機能性繊維構造体を構成する単糸繊維の直径が５〜４０μｍの範囲であることが好ましい。 In the functional fiber structure of the present invention, the functional fiber structure is preferably in the form of a fabric. Moreover, it is preferable that the single yarn fiber which comprises a functional fiber structure consists of polyester resins. Furthermore, it is preferable that the diameter of the single yarn fiber which comprises a functional fiber structure is the range of 5-40 micrometers.
本発明によれば、機能性微粒子が疎水性バインダー樹脂を介して繊維構造体に付与された機能性繊維構造体であって、ソフトな風合いを損なうことなく特に優れた耐久性を有する機能性繊維構造体が提供される。 According to the present invention, a functional fiber structure in which functional fine particles are imparted to the fiber structure via a hydrophobic binder resin, and the functional fiber having particularly excellent durability without impairing the soft texture A structure is provided.
以下、本発明の実施の形態について詳細に説明する。
まず、本発明の機能性繊維構造体において、繊維構造体の形態としては２次元構造や３次元構造など特に限定されないが、織編物、不織布などの布帛状（２次元構造）であることが好ましい。
Hereinafter, embodiments of the present invention will be described in detail.
First, in the functional fiber structure of the present invention, the form of the fiber structure is not particularly limited, such as a two-dimensional structure or a three-dimensional structure, but is preferably a cloth shape (two-dimensional structure) such as a woven or knitted fabric or a non-woven fabric. .
かかる繊維構造体を構成する繊維材料については特に限定されず、木綿、絹、麻、羊毛などの天然繊維、レーヨン、キュプラ、アセテートなどの半合成繊維、ポリエステル、ナイロン、アクリル、ポリプロピレンなどの合成繊維、なかでもポリエステル繊維が好適である。 The fiber material constituting the fiber structure is not particularly limited, and natural fibers such as cotton, silk, hemp and wool, semi-synthetic fibers such as rayon, cupra and acetate, and synthetic fibers such as polyester, nylon, acrylic and polypropylene. Of these, polyester fibers are preferred.
かかるポリエスエル繊維としては、テレフタル酸を主たるジカルボン酸成分とし、エチレングリコール、トリメチレングリコール、テトラメチレングリコールから選ばれた少なくとも１種のアルキレングリコールを主たるグリコール成分とするポリエステルからなるポリエステル繊維が好適である。該ポリエステルには、必要に応じて第３成分が共重合及び／又はブレンドされていてもよい。 As such a polyester fiber, a polyester fiber made of polyester having terephthalic acid as a main dicarboxylic acid component and at least one alkylene glycol selected from ethylene glycol, trimethylene glycol and tetramethylene glycol as a main glycol component is suitable. . The polyester may be copolymerized and / or blended with a third component as necessary.
さらには、本発明の目的を損なわない範囲内で必要に応じて、艶消し剤、微細孔形成剤（例えば、有機スルホン酸金属塩など）、カチオン染料可染化剤（例えば、イソフタル酸スルホニウム塩など）、酸化防止剤（例えば、ヒンダーフェノール系酸化防止剤など）、熱安定剤、難燃剤（例えば、三酸化二アンチモンなど）、蛍光増白剤、着色剤、帯電防止剤（例えば、スルホン酸金属塩など）、吸湿剤（例えば、ポリオキシアルキレングリコールなど）などが添加剤として１種または２種以上、繊維中に含まれていてもよい。 Furthermore, a matting agent, a fine pore forming agent (for example, organic sulfonic acid metal salt), a cationic dye dyeing agent (for example, sulfonium salt of isophthalic acid) as necessary within the range not impairing the object of the present invention. Etc.), antioxidants (eg, hindered phenolic antioxidants), heat stabilizers, flame retardants (eg, antimony trioxide), fluorescent brighteners, colorants, antistatic agents (eg, sulfonic acid) Metal salts etc.), hygroscopic agents (for example, polyoxyalkylene glycol etc.) and the like may be contained in the fiber as one or more additives.
繊維構造体を構成する単糸繊維の形態は特に限定されず、長繊維（マルチフィラメント）であってもよいし、短繊維（ステープル）であってもよい。該単糸繊維の横断面形状は、その用途に応じて丸、三角、扁平、中空など適宜選定される。かかる繊維の単糸繊維としては特に限定されないが、本発明の主目的のひとつであるソフトな風合いが損なわれないために、直径（異型の場合は真円の直径に換算して）で５〜４０μｍ（０．３〜１７ｄｔｅｘ）が好適である。かかる単糸繊維は、複数の単糸繊維の集合体である糸条として、繊維構造体を構成していることが好ましい。かかる糸条には、通常の仮撚捲縮加工や、タスラン加工やインターレース加工など通常の空気加工、撚糸加工が施されていてもよい。さらには、複数の糸条からなる複合糸として、繊維構造体を構成していてもよい。 The form of the single yarn fiber constituting the fiber structure is not particularly limited, and may be a long fiber (multifilament) or a short fiber (staple). The cross-sectional shape of the single yarn fiber is appropriately selected from round, triangular, flat, hollow and the like according to the application. Although it is not particularly limited as a single yarn fiber of such a fiber, in order not to impair the soft texture which is one of the main objects of the present invention, the diameter (in the case of a variant, converted to a perfect circle diameter) is 5 to 5. 40 μm (0.3 to 17 dtex) is preferable. Such a single yarn fiber preferably constitutes a fiber structure as a yarn that is an aggregate of a plurality of single yarn fibers. The yarn may be subjected to normal false twisting, normal air processing such as taslan processing or interlace processing, and twist processing. Furthermore, the fiber structure may be configured as a composite yarn composed of a plurality of yarns.
次に、繊維構造体に付着する機能性微粒子は径、種類とも特に限定されないが、その径としては０．１〜２．０μｍ（より好ましくは０．５〜１．５μｍ）の範囲が適当である。該直径が０．１μｍよりも小さいと、後記の皮膜層厚みとの特定の比率を得ることが困難となる恐れがある。逆に、該直径が２μｍよりも大きい場合には、機能性微粒子が繊維構造体から脱落しやすくなる恐れがある。 Next, the diameter and type of the functional fine particles attached to the fiber structure are not particularly limited, but the diameter is suitably in the range of 0.1 to 2.0 μm (more preferably 0.5 to 1.5 μm). is there. If the diameter is smaller than 0.1 μm, it may be difficult to obtain a specific ratio with the film layer thickness described later. On the contrary, when the diameter is larger than 2 μm, the functional fine particles may be easily dropped from the fiber structure.
かかる機能性微粒子の種類としては特に限定はされず、消臭性微粒子、赤外線吸収微粒子、マイナスイオン発生微粒子、芳香性微粒子、抗菌性微粒子、吸湿性微粒子などが例示される。前記の消臭性微粒子としては、無機物、有機物、天然物のいずれの消臭性微粒子を用いることができる。なかでも、熱的に安定な、Ｚｎ、Ｓｉ、Ｔｉ、Ｆｅ、ＡｌおよびＺｒの群より選ばれた少なくとも１種の元素の酸化物、あるいは複合酸化物が好適である。かかる機能性微粒子は光分解触媒能を有するものであってもよい。光分解触媒能を有する微粒子としては、光触媒酸化チタンが好適に例示される。該光触媒酸化チタンはアナターゼ型、ルチル型、アモルファス型のいずれでもよく、特に光触媒活性の強さからアナターゼ型酸化チタンが好適である。 The type of the functional fine particles is not particularly limited, and examples include deodorant fine particles, infrared absorbing fine particles, negative ion generating fine particles, aromatic fine particles, antibacterial fine particles, and hygroscopic fine particles. As the deodorant fine particles, any of deodorant fine particles of inorganic, organic and natural products can be used. Among these, a thermally stable oxide of at least one element selected from the group consisting of Zn, Si, Ti, Fe, Al, and Zr, or a composite oxide is preferable. Such functional fine particles may have a photolytic catalytic ability. As the fine particles having photolytic catalytic ability, photocatalytic titanium oxide is preferably exemplified. The photocatalytic titanium oxide may be any one of anatase type, rutile type, and amorphous type, and anatase type titanium oxide is particularly preferred because of its high photocatalytic activity.
次に、本発明でいう疎水性バインダー樹脂とは、親水基を有していないバインダー樹脂のことであり、かかる疎水性バインダー樹脂としては架橋型シリコーン樹脂、例えば、信越化学工業（株）、商品名ポロンＭＦ−２３などが好適である。 Next, the hydrophobic binder resin referred to in the present invention is a binder resin that does not have a hydrophilic group. Examples of the hydrophobic binder resin include cross-linked silicone resins such as Shin-Etsu Chemical Co., Ltd. The name Polon MF-23 is preferred.
ここで、バインダー樹脂が水分散体用アクリル樹脂やメラミン樹脂のように親水基を有するものであると、機能性微粒子とバンダー樹脂を含む加工剤を繊維構造体に付与した後、加熱乾燥する際、機能性微粒子を含んだバインダー樹脂が水分と一緒に繊維構造体の表面に移動してしまい、バインダー樹脂が単糸繊維間に凝集し、その結果、繊維構造体の風合いが硬くなってしまうため好ましくない。また、このようにバインダー樹脂が繊維構造体の表面に偏在したものに後記の撥水処理を施しても、耐久性が格段に向上することはない。 Here, when the binder resin has a hydrophilic group such as an acrylic resin or melamine resin for water dispersion, a processing agent containing functional fine particles and a bander resin is applied to the fiber structure and then dried by heating. Because the binder resin containing functional fine particles moves to the surface of the fiber structure together with moisture, the binder resin aggregates between the single yarn fibers, and as a result, the texture of the fiber structure becomes hard. It is not preferable. Further, even when the binder resin is unevenly distributed on the surface of the fiber structure and subjected to the water repellent treatment described later, the durability is not significantly improved.
本発明の繊維構造体において、繊維構造体を構成する単糸繊維は、前記の疎水性バインダー樹脂によって均一に被覆されており、かかる疎水性バインダー樹脂により前記機能性微粒子が付着している。 In the fiber structure of the present invention, the single yarn fiber constituting the fiber structure is uniformly coated with the hydrophobic binder resin, and the functional fine particles are adhered to the hydrophobic binder resin.
本発明でいう「均一に」とは、図１に模式的に示すように、バインダー樹脂が単糸繊維をほぼ均一に皮膜しており、かかるバインダー樹脂によって機能性微粒子が付着しているという意味である。ここで、図２に模式的に示すようにバインダー樹脂が単糸繊維間に凝集していると、繊維構造体の風合いが硬くなるため好ましくない。なお、図１および図２において機能性微粒子の図示は省略されている。 The term “uniformly” as used in the present invention means that, as schematically shown in FIG. 1, the binder resin substantially uniformly coats the single yarn fiber, and the functional fine particles adhere to the binder resin. It is. Here, when the binder resin is aggregated between the single yarn fibers as schematically shown in FIG. 2, the texture of the fiber structure becomes hard, which is not preferable. In FIG. 1 and FIG. 2, the functional fine particles are not shown.
かかる均一性の目安として、ＳＥＭ（電子顕微鏡）を用いて繊維構造体表面を３５０倍に写真撮影した際、繊維構造体表面に位置する繊維（フィラメント）同士の間から観察される、内部の繊維に付着している機能性微粒子が０．２ｃｍ２あたり１０個以上（好ましくは２０個以上）であることが好ましい。 As a measure of such uniformity, internal fibers observed from between the fibers (filaments) located on the surface of the fiber structure when the fiber structure surface is photographed 350 times using an SEM (electron microscope). It is preferable that the number of functional fine particles adhering to is 10 or more (preferably 20 or more) per 0.2 cm 2 .
前記機能性微粒子の径ｄ（μｍ）と前記被膜層の厚みｔ（μｍ）との比ｄ／ｔが１．５〜１０（好ましくは２〜９）の範囲にあることが好ましい。該比ｄ／ｔが１．５よりも小さいと機能性微粒子がバインダー樹脂に埋もれてあまり露出せず、十分な機能効果が得られないおそれがある。逆に、該該比ｄ／ｔが１０よりも大きいと、機能性微粒子が脱落しやすくなるおそれがある。なお、かかるｄおよびｔはＳＥＭにより測定可能である。 The ratio d / t between the diameter d (μm) of the functional fine particles and the thickness t (μm) of the coating layer is preferably in the range of 1.5 to 10 (preferably 2 to 9). If the ratio d / t is smaller than 1.5, the functional fine particles are buried in the binder resin and are not exposed so much that a sufficient functional effect may not be obtained. On the contrary, if the ratio d / t is larger than 10, the functional fine particles may be easily dropped. Such d and t can be measured by SEM.
前記疎水性バインダー樹脂からなる皮膜層の厚みとしては０．０１〜１．３μｍの範囲内であることが好ましい。疎水性バインダー樹脂からなる皮膜層の厚みをこの範囲とするには、前記機能性微粒子を含んだバインダー樹脂（加工剤）の付着量を、加工剤を付与する前の繊維構造体の重量に対して、０．２〜３０重量％（より好ましくは０．５〜５重量％）の範囲とするとよい。 The thickness of the coating layer made of the hydrophobic binder resin is preferably in the range of 0.01 to 1.3 μm. In order to make the thickness of the coating layer made of the hydrophobic binder resin within this range, the adhesion amount of the binder resin (processing agent) containing the functional fine particles is based on the weight of the fiber structure before applying the processing agent. Thus, the content may be in the range of 0.2 to 30% by weight (more preferably 0.5 to 5% by weight).
なお、前記加工剤の付着量は下記式により求めるものとする。
付着量＝（（Ａ１−Ａ０）／Ａ０）×１００（％）
ここで、Ａ０は加工剤付与前の繊維構造体の重量であり、Ａ１は加工剤付与・乾燥後の繊維構造体の重量であり、該付着量には、機能性微粒子、バインダー樹脂、その他添加剤の純分が含まれる。
In addition, the adhesion amount of the said processing agent shall be calculated | required by a following formula.
Adhesion amount = ((A 1 −A 0 ) / A 0 ) × 100 (%)
Here, A 0 is the weight of the fiber structure before applying the processing agent, A 1 is the weight of the fiber structure after applying the processing agent and drying, and the adhesion amount includes functional fine particles, binder resin, Contains pure content of other additives.
本発明の機能性繊維構造体は、前記疎水性バインダー樹脂からなる皮膜層の上に撥水処理が施され、撥水剤を含む撥水層が積層されてなるものである。
ここで、撥水処理は通常のものでよい。例えば、特許第３１３３２２７号公報や特公平４−５７８６号公報に記載された方法が好適である。すなわち、撥水剤として市販のフッ素系撥水剤（例えば、明成化学製、アサヒガードＡＧ７１０）を使用し、必要に応じてメラミン樹脂、触媒を混合して撥水剤の濃度が３〜６０重量％程度の加工剤とし、ピックアップ率５０〜９０％程度で、該加工剤を用いて織物の表面を処理する方法である。加工剤で織物の表面を処理する方法としては、パッド法、スプレー法などが例示され、なかでも、加工剤を織物内部まで浸透させる上でパッド法が最も好ましい。
The functional fiber structure of the present invention is obtained by laminating a water-repellent layer containing a water-repellent agent on a film layer made of the hydrophobic binder resin.
Here, the water repellent treatment may be a normal one. For example, the methods described in Japanese Patent No. 3133227 and Japanese Patent Publication No. 4-5786 are suitable. That is, a commercially available fluorine-based water repellent (for example, Asahi Guard AG710 manufactured by Meisei Chemical Co., Ltd.) is used as the water repellent, and the concentration of the water repellent is 3 to 60 wt. %, And the surface of the woven fabric is treated with the processing agent at a pickup rate of about 50 to 90%. Examples of the method for treating the surface of the woven fabric with the processing agent include a pad method and a spray method. Among them, the pad method is most preferable for allowing the processing agent to penetrate into the woven fabric.
かかる撥水層の厚みとしては０．００１〜０．１μｍの範囲内であることが好ましい。撥水層の厚みが０．００１μｍよりも小さいと、機能の十分な耐久性が得られないおそれがある。逆に、撥水層の厚みが０．１μｍよりも大きいと、機能性微粒子が埋もれてしまい、十分な機能が得られないおそれがある。 The thickness of the water repellent layer is preferably in the range of 0.001 to 0.1 μm. If the thickness of the water repellent layer is smaller than 0.001 μm, sufficient function durability may not be obtained. On the contrary, when the thickness of the water repellent layer is larger than 0.1 μm, the functional fine particles are buried, and there is a possibility that a sufficient function cannot be obtained.
次に、本発明の機能性繊維構造体の製造方法について説明する。
まず、機能性微粒子および疎水性バインダー樹脂を含む水分散体を準備する。ここで、機能性微粒子及び疎水性バインダー樹脂としては前記のものを適宜用いることができる。そして、水分散体中の濃度としては各々０．１〜１５ｗｔ％（より好ましくは０．２〜５ｗｔ％）、０．１〜１５ｗｔ％（より好ましくは１〜８ｗｔ％）の範囲が適当である。
Next, the manufacturing method of the functional fiber structure of this invention is demonstrated.
First, an aqueous dispersion containing functional fine particles and a hydrophobic binder resin is prepared. Here, as the functional fine particles and the hydrophobic binder resin, those described above can be used as appropriate. The concentration in the aqueous dispersion is suitably in the range of 0.1 to 15 wt% (more preferably 0.2 to 5 wt%) and 0.1 to 15 wt% (more preferably 1 to 8 wt%). .
前記の水分散液には、必要に応じて触媒、仕上げ加工剤、例えば撥水剤、柔軟剤、難燃剤、抗菌防臭加工剤などを添加してもよい。
かかる水分散体を前述の繊維構造体に付与する。その際、付与方法としては、水分散体を繊維構造体の内部まで均等に浸透させる点で公知のパデング法（含浸、絞液法）が好適である。
If necessary, a catalyst, a finishing agent such as a water repellent, a softening agent, a flame retardant, an antibacterial deodorizing agent and the like may be added to the aqueous dispersion.
Such an aqueous dispersion is applied to the aforementioned fiber structure. At this time, a known padding method (impregnation or squeezing method) is suitable as the application method in that the aqueous dispersion is uniformly permeated into the fiber structure.
次いで、水分散体を付与された繊維構造体を８０〜１４０℃の温度で１〜３０分乾燥し、必要に応じてさらに１６０〜１８０℃で０．５〜３分間加熱（キュアー）することにより、バインダー樹脂が疎水性であるため、機能性微粒子を含んだ疎水性バインダーは繊維表面に被覆状に残されたまま水分のみが繊維構造体の表面に移動・蒸発し、繊維構造体を構成する単糸繊維に皮膜状に均一に付着した疎水性バインダー樹脂により、機能性微粒子が付着した繊維構造体が得られる。そして、かかる繊維構造体に前記の撥水処理を施すことにより、本発明の機能性繊維構造体が得られる。 Next, the fiber structure to which the aqueous dispersion is applied is dried at a temperature of 80 to 140 ° C. for 1 to 30 minutes, and further heated (cured) at 160 to 180 ° C. for 0.5 to 3 minutes as necessary. Since the binder resin is hydrophobic, the hydrophobic binder containing functional fine particles moves and evaporates only on the surface of the fiber structure while remaining in the form of a coating on the fiber surface, thereby forming the fiber structure. A fiber structure having functional fine particles attached thereto is obtained by the hydrophobic binder resin uniformly attached to the single yarn fiber in the form of a film. And the functional fiber structure of this invention is obtained by performing the said water-repellent process to this fiber structure.
かくして得られた機能性繊維構造体には、前記の水分散体付与や撥水処理の前および／または後にアルカリ減量加工や常法の染色仕上げ加工が施されてもよい。また、常法の吸水加工、起毛加工、さらには、紫外線遮蔽あるいは制電剤、抗菌剤、消臭剤、防虫剤、蓄光剤、再帰反射剤、マイナスイオン発生剤等の機能を付与する各種加工を付加適用してもよい。 The functional fiber structure thus obtained may be subjected to alkali weight loss processing or conventional dye finish processing before and / or after the above-mentioned aqueous dispersion application or water repellent treatment. In addition, conventional water absorption processing, brushing processing, and various processing that provides functions such as UV shielding or antistatic agents, antibacterial agents, deodorants, insect repellents, phosphorescent agents, retroreflective agents, negative ion generators, etc. May be additionally applied.
本発明の機能性繊維構造体において、繊維構造体を構成する単糸繊維に皮膜状に均一に付着した疎水性バインダー樹脂により、機能性微粒子が繊維に付着しており、さらに該皮膜層が撥水層によりガードされているので、ソフトな風合いを損なうことなく特に優れた洗濯耐久性が得られる。 In the functional fiber structure of the present invention, the functional fine particles are attached to the fibers by the hydrophobic binder resin uniformly attached in a film form to the single yarn fibers constituting the fiber structure, and the film layer is repellent. Since it is guarded by the water layer, particularly excellent washing durability can be obtained without impairing the soft texture.
次に本発明の実施例及び比較例を詳述するが、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。
（１）加工剤の付着量
下記式により求めた。
付着量＝（（Ａ１−Ａ０）／Ａ０）×１００（％）
ここで、Ａ０は加工剤付与前の繊維構造体の重量であり、Ａ１は加工剤付与・乾燥後の繊維構造体の重量である。
（２）機能性微粒子の径ｄおよびバインダー樹脂の皮膜層厚みｔ
ＳＥＭ（日本電子（株）製）を用いて繊維構造体断面を３５０倍に写真撮影し、ｎ＝５で測定し、その平均値をもとめた。
（３）撥水層の厚み
透過型電子顕微鏡（日本電子（株）製）を用いて繊維構造体断面を３５０倍に写真撮影し、ｎ＝５で測定し、その平均値をもとめた。
（４）繊維間に観察される機能性微粒子の個数
ＳＥＭを用いて繊維構造体表面を３５０倍に写真撮影し、繊維構造体表面に位置する繊維間に観察される機能性微粒子の個数（ケ／０．２ｃｍ２）をｎ数５でカウントした。
（５）洗濯
ＪＩＳ Ｌ０２１７法による洗濯を３０回行った。
（６）消臭率
洗濯前後の加工布帛１ｇをテドラーバッグに入れ、ここに、硫化水素４ＰＰＭを含む空気３リットルを導入した後、テドラーバッグを密栓し、ついで、２７０ｎｍに中心波長を持つ、強度５００μＷの紫外線を２４時間照射した後、消費された硫化水素量をガステック社製検知管にて測定し、当初の硫化水素量に対する百分率で表した。
（７）ソフト感
カトーテック社製純曲げ硬さ測定装置を用い、加工処理後で洗濯前の布帛について曲げ硬さを測定しソフト感の指標とした。
Next, although the Example and comparative example of this invention are explained in full detail, this invention is not limited by these. In addition, each measurement item in an Example was measured with the following method.
(1) Adhesion amount of processing agent It calculated | required by the following formula.
Adhesion amount = ((A 1 −A 0 ) / A 0 ) × 100 (%)
Here, A 0 is the weight of the fiber structure before applying the processing agent, and A 1 is the weight of the fiber structure after applying the processing agent and drying.
(2) Functional fine particle diameter d and binder resin film layer thickness t
Using SEM (manufactured by JEOL Ltd.), the cross section of the fiber structure was photographed 350 times, measured at n = 5, and the average value was obtained.
(3) Thickness of the water-repellent layer Using a transmission electron microscope (manufactured by JEOL Ltd.), a cross section of the fiber structure was photographed 350 times, measured at n = 5, and the average value was obtained.
(4) Number of functional fine particles observed between fibers The surface of the fiber structure was photographed 350 times using SEM, and the number of functional fine particles observed between the fibers located on the surface of the fiber structure /0.2 cm 2 ) was counted with n number of 5.
(5) Laundry
Washing was performed 30 times according to JIS L0217 method.
(6) Deodorization rate 1 g of processed fabric before and after washing is put into a Tedlar bag, and after introducing 3 liters of air containing 4 PPM of hydrogen sulfide, the Tedlar bag is sealed and then has a central wavelength at 270 nm and an intensity of 500 μW. After irradiating with ultraviolet rays for 24 hours, the amount of consumed hydrogen sulfide was measured with a detector tube manufactured by Gastec Corporation and expressed as a percentage of the initial amount of hydrogen sulfide.
(7) Soft feeling Using a pure bending hardness measuring device manufactured by Kato Tech Co., Ltd., the bending hardness of the fabric after processing and before washing was measured and used as an index of soft feeling.
［実施例１］
経糸として、総繊度５６ｄｔｅｘ／２４ｆｉｌのポリエステル延伸糸を配し、緯糸として、８４ｄｔｅｘ／３６ｆｉｌのポリエステル延伸糸を配して目付け５５ｇ／ｍ２のタフタを製織した。
[Example 1]
A stretched polyester yarn having a total fineness of 56 dtex / 24 fil was used as the warp, and a stretched polyester yarn of 84 dtex / 36 fil was used as the weft to weave a taffeta with a basis weight of 55 g / m 2 .
一方、下記の水分散体を用意した。
［処理液の組成］
・チタン系吸着型消臭剤 １０ｇ／ｌ
（チタン工業社製 商品名ＴＺ−１００ 粒子径０．８μｍ）
・疎水性架橋シリコーンバインダー ４０ｇ／ｌ
（信越化学工業社製 商品名ＭＦ―２３）
・触媒 ２０ｇ／ｌ
（信越化学工業社製 商品名ＬＺ−１）
・水 ９３０ｇ／ｌ
On the other hand, the following aqueous dispersion was prepared.
[Composition of treatment liquid]
・ Titanium-based adsorption deodorant 10g / l
(Product name TZ-100, particle size 0.8 μm, manufactured by Titanium Industry Co., Ltd.)
-Hydrophobic crosslinked silicone binder 40g / l
(Product name MF-23, manufactured by Shin-Etsu Chemical Co., Ltd.)
・ Catalyst 20g / l
(Product name LZ-1 manufactured by Shin-Etsu Chemical Co., Ltd.)
・ Water 930g / l
次いで、該水分散液中に前記繊維構造体を浸漬し、マングルで絞った（パデング法）後、熱風乾燥機を用いて１３０℃、５分間乾燥し、さらに１７０℃で１分間熱処理（キュアー）することにより、消臭性（機能性）繊維構造体（加工剤の付着量１重量％）を得た。 Next, the fiber structure was immersed in the aqueous dispersion and squeezed with a mangle (padding method), then dried with a hot air dryer at 130 ° C. for 5 minutes, and further heat treated at 170 ° C. for 1 minute (cure) As a result, a deodorant (functional) fiber structure (amount of processing agent attached 1% by weight) was obtained.
次いで、以下に示すフッ素系撥水剤を含む加工剤を準備し、これに上記の消臭性繊維構造体を浸漬し、マングルで絞った（パデング法）後、熱風乾燥機を用いて１３０℃、５分間乾燥し、さらに１７０℃で１分間熱処理（キュアー）することにより、撥水性と消臭性を有する機能性繊維構造体を得た。 Next, a processing agent containing the following fluorine-based water repellent was prepared, and the above deodorant fiber structure was dipped in this and squeezed with a mangle (padding method), and then 130 ° C. using a hot air dryer. The functional fiber structure which has water repellency and deodorizing property was obtained by drying for 5 minutes, and also heat-processing (curing) for 1 minute at 170 degreeC.
［加工剤の組成］
・フッ素系撥水剤 ４０ｇ／ｌ
（明成化学製 商品名アサヒガードＡＧ７１０）
・メラミン ５ｇ／ｌ
（住友化学製 商品名スミテックスレジンＲＦ）
・メラミン用触媒 ５ｇ／ｌ
（住友化学製 商品名アクセレーターＡＣＸ）
・イソプロパノール ３０ｇ／ｌ
（和光純薬製 １級）
[Composition of processing agent]
・ Fluorine water repellent 40g / l
(Product name: Asahi Guard AG710, manufactured by Meisei Chemical)
・ Melamine 5g / l
(Product name: Sumitex Resin RF, manufactured by Sumitomo Chemical)
・ Melamine catalyst 5g / l
(Product name Accelerator ACX manufactured by Sumitomo Chemical)
・ Isopropanol 30g / l
(Wako Pure Chemicals grade 1)
かくして得られた機能性繊維構造体において、バインダー樹脂が単糸繊維間に凝集することなく、繊維構造体を構成する単糸繊維に皮膜状に付着していた。該繊維構造体の表面に位置する単糸繊維間に消臭性微粒子が９０個／０．２ｃｍ２観察された。また、単糸繊維表面に形成されたバインダー樹脂皮膜層の厚みは０．１μｍ（ｄ／ｔ＝８．０）、撥水層の厚みは０．０５μｍであった。 In the functional fiber structure thus obtained, the binder resin adhered to the single yarn fibers constituting the fiber structure in a film form without agglomerating between the single yarn fibers. 90 deodorant fine particles / 0.2 cm 2 were observed between the single yarn fibers located on the surface of the fiber structure. The thickness of the binder resin film layer formed on the surface of the single yarn fiber was 0.1 μm (d / t = 8.0), and the thickness of the water repellent layer was 0.05 μm.
該繊維構造体の消臭率はＬ０で１００％、Ｌ５０（５０回洗濯後）で９５％と耐久性に特に優れた消臭性を有するものであった。また、布帛のソフト感も布帛の曲げ硬さで０．０４ｇｃｍ３／ｃｍと良好であった。 The fiber structure had a deodorizing rate of 100% at L0 and 95% at L50 (after 50 launderings) and had particularly excellent deodorizing properties in terms of durability. Further, the softness of the fabric was also good at 0.04 gcm 3 / cm in terms of the bending hardness of the fabric.
［比較例１］
実施例１において、撥水処理を行わないこと以外は実施例１と同様にした。得られた消臭性繊維構造体において、布帛の曲げ硬さで０．０４ｇｃｍ３／ｃｍと良好であるものの、消臭率はＬ０で１００％、Ｌ５０（５０回洗濯後）で７０％と、実施例１で得られたものと比べて、洗濯耐久性に欠けるものであった。
[Comparative Example 1]
In Example 1, it carried out similarly to Example 1 except not performing a water-repellent process. In the obtained deodorant fiber structure, although the bending hardness of the fabric is as good as 0.04 gcm 3 / cm, the deodorization rate is 100% at L0 and 70% at L50 (after 50 washes), Compared to that obtained in Example 1, the washing durability was insufficient.
［比較例２］
実施例１において、処理液組成中の疎水性架橋シリコーンバインダーをメラミン（住友化学製 商品名スミテックスレジン 親水性）５ｇ／ｌに、また触媒をメラミン用触媒（住友化学製 商品名アクセレーターＡＣＸ）２ｇ／ｌに変更すること以外は、実施例１と同様にして機能性繊維構造体を得た。
[Comparative Example 2]
In Example 1, the hydrophobic cross-linked silicone binder in the composition of the treatment liquid was 5 g / l of melamine (trade name Sumitex Resin hydrophilic, manufactured by Sumitomo Chemical Co., Ltd.), and the catalyst was a catalyst for melamine (trade name accelerator ACX, manufactured by Sumitomo Chemical Co., Ltd.). A functional fiber structure was obtained in the same manner as in Example 1 except that the amount was changed to 2 g / l.
得られた機能性繊維構造体において、（親水性）バインダー樹脂が単糸繊維間に凝集しており、消臭率はＬ０で８０％、Ｌ５０（５０回洗濯後）で３０％と洗濯耐久性に劣るものであった。また、布帛のソフト感も布帛の曲げ硬さで０．２０ｇｃｍ３／ｃｍと大変硬いものであった。 In the obtained functional fiber structure, the (hydrophilic) binder resin is aggregated between single yarn fibers, and the deodorization rate is 80% at L0 and 30% at L50 (after 50 washings), and the washing durability. It was inferior to. Further, the soft feeling of the fabric was very hard at 0.20 gcm 3 / cm in terms of the bending hardness of the fabric.
なお比較例２において、撥水処理を施す前の繊維構造体では、消臭率はＬ０で８０％、Ｌ５０（５０回洗濯後）で３０％と洗濯耐久性に劣るものであった。また、布帛のソフト感も布帛の曲げ硬さで０．２１ｇｃｍ３／ｃｍと大変硬いものであり、バインダー樹脂が単糸繊維間に凝集したものに撥水処理を施しても、洗濯耐久性に格段の効果がないことが判明した。 In Comparative Example 2, the fiber structure before water-repellent treatment had a deodorization rate of 80% at L0 and 30% at L50 (after 50 washings), which was inferior in washing durability. In addition, the softness of the fabric is very hard at 0.21 gcm 3 / cm in terms of the bending hardness of the fabric, and even if the binder resin is aggregated between the single yarn fibers and subjected to a water repellent treatment, the fabric is durable. It turned out that there was not much effect.
本発明によれば、機能性微粒子が疎水性バインダー樹脂を介して付与された機能性繊維構造体であって、ソフトな風合いを損なうことなく、耐久性に特に優れた機能性を有する機能性繊維構造体が提供される。かかる機能性繊維構造体は、ユニフォーム、スポーツウエアー、シーツなどの用途に好適である。 According to the present invention, a functional fiber structure in which functional fine particles are imparted via a hydrophobic binder resin, the functional fiber having particularly excellent durability without impairing the soft texture. A structure is provided. Such a functional fiber structure is suitable for uses such as uniforms, sportswear, and sheets.
１，２，３，４ 繊維構造体を構成する単糸繊維
５ 単糸繊維同士を接着しているバインダー樹脂
1, 2, 3, 4 Single yarn fiber constituting fiber structure 5 Binder resin bonding single yarn fibers
Claims (10)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010047862A (en) * | 2008-08-20 | 2010-03-04 | Achilles Corp | Method for supporting functional particle on fiber or fiber product and fiber or fiber product produced by the supporting method |
| WO2010092999A1 (en) * | 2009-02-13 | 2010-08-19 | 国立大学法人信州大学 | Fiber product which supports photocatalyst, and method for producing same |
| JPWO2012147582A1 (en) * | 2011-04-25 | 2014-07-28 | 帝人フロンティア株式会社 | Fabrics and textile products |
| JP2016113725A (en) * | 2014-12-15 | 2016-06-23 | ユニチカトレーディング株式会社 | Flame-retardant fabric |
| JP2021123809A (en) * | 2020-01-31 | 2021-08-30 | 一彦 横山 | Multifunctional woven fabric |
-
2005
- 2005-01-21 JP JP2005014026A patent/JP2006200082A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010047862A (en) * | 2008-08-20 | 2010-03-04 | Achilles Corp | Method for supporting functional particle on fiber or fiber product and fiber or fiber product produced by the supporting method |
| WO2010092999A1 (en) * | 2009-02-13 | 2010-08-19 | 国立大学法人信州大学 | Fiber product which supports photocatalyst, and method for producing same |
| JP2010185158A (en) * | 2009-02-13 | 2010-08-26 | Shinshu Univ | Fibrous product having photocatalyst, and method for producing the same |
| JPWO2012147582A1 (en) * | 2011-04-25 | 2014-07-28 | 帝人フロンティア株式会社 | Fabrics and textile products |
| US9725847B2 (en) | 2011-04-25 | 2017-08-08 | Teijin Frontier Co., Ltd. | Cloth containing an organic fiber and having a fluorine compound attached to the cloth, and textile product comprising the cloth |
| JP2016113725A (en) * | 2014-12-15 | 2016-06-23 | ユニチカトレーディング株式会社 | Flame-retardant fabric |
| JP2021123809A (en) * | 2020-01-31 | 2021-08-30 | 一彦 横山 | Multifunctional woven fabric |
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