JP2011006806A - Sebum-removing cloth and method for producing the same - Google Patents
Sebum-removing cloth and method for producing the same Download PDFInfo
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- JP2011006806A JP2011006806A JP2009149780A JP2009149780A JP2011006806A JP 2011006806 A JP2011006806 A JP 2011006806A JP 2009149780 A JP2009149780 A JP 2009149780A JP 2009149780 A JP2009149780 A JP 2009149780A JP 2011006806 A JP2011006806 A JP 2011006806A
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- 239000002202 Polyethylene glycol Substances 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
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- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
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- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
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Landscapes
- Treatment Of Fiber Materials (AREA)
- Knitting Of Fabric (AREA)
- Woven Fabrics (AREA)
Abstract
Description
本発明は単繊維径が１０〜１０００ｎｍのフィラメント糸を含む布帛で構成され、優れた皮脂取り性能を有する皮脂取りクロスおよびその製造方法に関する。 The present invention relates to a sebum-removing cloth made of a cloth containing filament yarn having a single fiber diameter of 10 to 1000 nm and having excellent sebum-removing performance, and a method for producing the same.
日常生活において顔面に皮脂が分泌されて、テカリやべとつきが発生するのは、男女を問わず不快である。これに対して、従来脂取り紙が多く用いられてきたが、１度使用すると廃棄しゴミとなる環境問題や、明らかに皮脂を除去していることが他人から見ても分かるといった問題があった（例えば、特許文献１参照）。また、脂取り紙では、素材そのものが硬いため、顔面の凹凸に沿いにくく十分に皮脂を除去できなかったり、肌を傷つけたりする問題もあった。 It is unpleasant for both men and women that sebum is secreted on the face in daily life, causing shine and stickiness. On the other hand, oil-repellent paper has been widely used in the past, but there are problems such as environmental problems that would be discarded after being used once, and that other people can clearly see that sebum has been removed. (For example, see Patent Document 1). In addition, since the material itself is hard with the oil removing paper, it is difficult to follow the unevenness of the face and the sebum cannot be sufficiently removed or the skin is damaged.
このため、自然に生活の中で分泌された皮脂を除去できるハンカチ等が求められおり、使い捨てではなく、マイクロファイバーを用いた皮脂取りクロスが提供されてきた（例えば、特許文献２参照）。
しかしながら、かかる皮脂取りクロスの皮脂取り性能は十分ではなく、脂取り紙のように押し当てるだけで十分な皮脂除去性は得られなかった。
For this reason, a handkerchief or the like that can remove sebum secreted naturally in life has been demanded, and a sebum-removing cloth using microfiber has been provided instead of disposable (see, for example, Patent Document 2).
However, the sebum removing performance of such a sebum-absorbing cloth is not sufficient, and sufficient sebum removal properties cannot be obtained only by pressing like a degreased paper.
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、単繊維径が１０〜１０００ｎｍのフィラメント糸を含む布帛で構成され、優れた皮脂取り性能を有する皮脂取りクロスおよびその製造方法を提供することにある。 The present invention has been made in view of the background described above, and an object of the present invention is to provide a sebum-removing cloth having excellent sebum-removing performance and a method for producing the same, which is composed of a fabric including filament yarn having a single fiber diameter of 10 to 1000 nm. It is to provide.
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、超極細繊維を用いて伸縮性の良好な皮脂取り用布帛を得ると、肌へのフィット性が高まり優れた皮脂取り性能を呈することを見出し、さらに鋭意検討を重ねることにより本発明を完成するに至った。 As a result of intensive studies to achieve the above-mentioned problems, the present inventors have obtained a sebum removing fabric with excellent stretchability using ultra-fine fibers, and the fit to the skin is enhanced and excellent sebum removing performance is exhibited. As a result, the present invention has been completed.
かくして、本発明によれば「単繊維径が１０〜１０００ｎｍのフィラメント糸Ａを含む布帛で構成される皮脂取りクロスであって、クロス表面における表面粗さが算術平均高さＲａで３０μｍ以下であることを特徴とする皮脂取りクロス。」が提供される。 Thus, according to the present invention, “a sebum-absorbing cloth composed of a fabric containing filament yarn A having a single fiber diameter of 10 to 1000 nm, and the surface roughness of the cloth surface is 30 μm or less in terms of arithmetic average height Ra. A sebum-removing cloth characterized in that "is provided.
その際、前記布帛が編物組織を有することが好ましい。前記フィラメント糸Ａがポリエステルからなることが好ましい。また、前記フィラメント糸Ａのフィラメント数が３０００本以上であることが好ましい。また、前記フィラメント糸Ａが、海成分と島成分とからなる海島型複合繊維の海成分を溶解除去して得られた糸条であることが好ましい。また、前記布帛に前記フィラメント糸Ａが５０重量％以上含まれることが好ましい。 At that time, the fabric preferably has a knitted structure. The filament yarn A is preferably made of polyester. Moreover, it is preferable that the filament number of the filament yarn A is 3000 or more. Moreover, it is preferable that the filament yarn A is a yarn obtained by dissolving and removing a sea component of a sea-island type composite fiber composed of a sea component and an island component. Moreover, it is preferable that the filament yarn A is contained in the fabric in an amount of 50% by weight or more.
また、本発明によれば、単繊維径が１０〜１０００ｎｍのフィラメント糸Ａを含む布帛にバフ加工を施すことを特徴とする、前記の皮脂取りクロスの製造方法が提供される。 Moreover, according to this invention, the manufacturing method of the said sebum removal cloth | cross characterized by buffing the cloth containing the filament yarn A whose single fiber diameter is 10-1000 nm is provided.
本発明によれば、単繊維径が１０〜１０００ｎｍのフィラメント糸を含む布帛で構成され、優れた皮脂取り性能を有する皮脂取りクロスおよびその製造方法が得られる。 ADVANTAGE OF THE INVENTION According to this invention, the sebum removal cloth which is comprised with the cloth containing the filament yarn whose single fiber diameter is 10-1000 nm, and has the outstanding sebum removal performance, and its manufacturing method are obtained.
以下、本発明の実施の形態について詳細に説明する。
まず、フィラメント糸Ａ（以下、「ナノファイバー」と称することもある。）において、その単繊維径（単繊維の直径）が１０〜１０００ｎｍ（好ましくは１００〜９００ｎｍ、特に好ましくは５５０〜９００ｎｍ）の範囲内であることが肝要である。かかる単繊維径を単繊維繊度に換算すると、０．０００００１〜０．０１ｄｔｅｘに相当する。該単繊維径が１０ｎｍよりも小さい場合は繊維強度が低下するため実用上好ましくない。逆に、該単繊維径が１０００ｎｍよりも大きい場合は、十分な皮脂取り性能が得られないおそれがあり好ましくない。ここで、単繊維の断面形状が丸断面以外の異型断面である場合には、外接円の直径を単繊維径とする。なお、単繊維径は、透過型電子顕微鏡で繊維の横断面を撮影することにより測定が可能である。また、単繊維繊度のばらつきが−２０％〜＋２０％の範囲内であることが好ましい。
Hereinafter, embodiments of the present invention will be described in detail.
First, in the filament yarn A (hereinafter, also referred to as “nanofiber”), the single fiber diameter (single fiber diameter) is 10 to 1000 nm (preferably 100 to 900 nm, particularly preferably 550 to 900 nm). It is important to be within the range. When the single fiber diameter is converted into a single fiber fineness, it corresponds to 0.000001 to 0.01 dtex. When the single fiber diameter is smaller than 10 nm, the fiber strength is lowered, which is not preferable for practical use. On the contrary, when the single fiber diameter is larger than 1000 nm, there is a possibility that sufficient sebum removal performance may not be obtained, which is not preferable. Here, when the cross-sectional shape of the single fiber is an atypical cross section other than the round cross section, the diameter of the circumscribed circle is defined as the single fiber diameter. The single fiber diameter can be measured by photographing the cross section of the fiber with a transmission electron microscope. Moreover, it is preferable that the dispersion | variation in single fiber fineness exists in the range of -20%-+ 20%.
前記フィラメント糸Ａにおいて、フィラメント数は特に限定されないが、優れた皮脂取り性を得る上で３０００本以上（より好ましくは５０００〜１００００本）であることが好ましい。また、フィラメント糸Ａの総繊度（単繊維繊度とフィラメント数との積）としては、５〜１５０ｄｔｅｘの範囲内であることが好ましい。 In the filament yarn A, the number of filaments is not particularly limited, but is preferably 3000 or more (more preferably 5000 to 10000) in order to obtain excellent sebum removal properties. The total fineness of the filament yarn A (the product of the single fiber fineness and the number of filaments) is preferably in the range of 5 to 150 dtex.
前記フィラメント糸Ａの繊維形態は特に限定されないが、長繊維（マルチフィラメント糸）であることが好ましい。単繊維の断面形状も特に限定されず、丸、三角、扁平、中空など公知の断面形状でよい。また、通常の空気加工、仮撚捲縮加工が施されていてもさしつかえない。 The fiber form of the filament yarn A is not particularly limited, but is preferably a long fiber (multifilament yarn). The cross-sectional shape of the single fiber is not particularly limited, and may be a known cross-sectional shape such as round, triangular, flat, hollow. In addition, normal air processing and false twist crimping may be applied.
前記フィラメント糸Ａを形成するポリマーの種類としては特に限定されないが、ポリエステル系ポリマーが好ましい。例えば、ポリエチレンテレフタレートやポリトリメチレンテレフタレート、ポリブチレンテレフタレート、ポリ乳酸、ステレオコンプレックスポリ乳酸、第３成分を共重合させたポリエステルなどが好ましく例示される。かかるポリエステルとしては、マテリアルリサイクルまたはケミカルリサイクルされたポリエステルであってもよい。さらには、特開２００４−２７００９７号公報や特開２００４−２１１２６８号公報に記載されているような、特定のリン化合物およびチタン化合物を含む触媒を用いて得られたポリエステルでもよい。該ポリマー中には、本発明の目的を損なわない範囲内で必要に応じて、微細孔形成剤、カチオン染料可染剤、着色防止剤、熱安定剤、蛍光増白剤、艶消し剤、着色剤、吸湿剤、無機微粒子が１種または２種以上含まれていてもよい。 The type of polymer that forms the filament yarn A is not particularly limited, but a polyester polymer is preferable. For example, polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polylactic acid, stereocomplex polylactic acid, polyester obtained by copolymerizing the third component, and the like are preferably exemplified. Such polyester may be material recycled or chemically recycled polyester. Furthermore, the polyester obtained using the catalyst containing the specific phosphorus compound and titanium compound which are described in Unexamined-Japanese-Patent No. 2004-270097 and 2004-21268 may be sufficient. In the polymer, a fine pore forming agent, a cationic dye dyeing agent, an anti-coloring agent, a heat stabilizer, a fluorescent whitening agent, a matting agent, a coloring agent may be added as necessary within the range not impairing the object of the present invention. 1 type (s) or 2 or more types of an agent, a hygroscopic agent, and inorganic fine particles may be contained.
本発明の皮脂取りクロスを構成する布帛は、前記のフィラメント糸Ａのみで構成されることが最も好ましく、前記フィラメント糸Ａが５０重量％以上含まれることが好ましい。該布帛に他の糸条が１種類または複数種類含まれていてもよい。その際、かかる他の糸条としては、単繊維径が１０００ｎｍより大の、前記のようなポリエステルからなるポリエスエテル糸条や弾性繊維糸が好ましい。特に、他の糸条として弾性繊維糸が含まれていると、布帛にさらに優れた伸縮性が付加され好ましい。 The fabric constituting the sebum removing cloth of the present invention is most preferably composed only of the filament yarn A, and the filament yarn A is preferably contained in an amount of 50% by weight or more. One or more types of other yarns may be included in the fabric. At this time, as such other yarns, polyester yarns and elastic fiber yarns made of polyester as described above having a single fiber diameter of more than 1000 nm are preferable. In particular, when an elastic fiber yarn is included as another yarn, it is preferable because a further excellent stretchability is added to the fabric.
ここで、かかる弾性繊維糸としては、ポリブチレンテレフタレートをハードセグメントとし、ポリオキシエチレングリコールをソフトセグメントとするポリエーテルエステルエラストマーからなる吸水性ポリエーテルエステル弾性繊維糸、ポリブチレンテレフタレートをハードセグメントとし、ポリテトラメチレンオキシドグリコールをソフトセグメントとするポリエーテルエステルエラストマーからなる非吸水性ポリエーテルエステル弾性繊維糸、ポリウレタン弾性繊維糸、ポリトリメチレンテレフタレート糸、合成ゴム系弾性繊維糸、天然ゴム系弾性繊維糸などが好適に例示される。 Here, as such an elastic fiber yarn, polybutylene terephthalate as a hard segment, water-absorbing polyether ester elastic fiber yarn made of a polyether ester elastomer having polyoxyethylene glycol as a soft segment, polybutylene terephthalate as a hard segment, Non-water-absorbing polyether ester elastic fiber yarn, polyurethane elastic fiber yarn, polytrimethylene terephthalate yarn, synthetic rubber elastic fiber yarn, natural rubber elastic fiber yarn made of polyether ester elastomer with polytetramethylene oxide glycol as soft segment Etc. are preferably exemplified.
前記弾性繊維糸の総繊度としては、５〜１００ｄｔｅｘ（より好ましくは１０〜４０ｄｔｅｘ）の範囲内であることが好ましい。前記弾性繊維糸の破断伸度は２００％以上のものが好ましく、染色加工時の熱処理によって性能を損なわないものが好ましい。 The total fineness of the elastic fiber yarn is preferably in the range of 5 to 100 dtex (more preferably 10 to 40 dtex). The breaking elongation of the elastic fiber yarn is preferably 200% or more, and the elastic fiber yarn preferably does not impair the performance by heat treatment during dyeing.
本発明の皮脂取りクロスは、前記の布帛で構成される皮脂取りクロスであって、クロス表面における表面粗さが算術平均高さＲａで３０μｍ以下（好ましくは１〜２５μｍ）であることが肝要である。該算術平均高さＲａが３０μｍより大きいと、すなわち表面粗さが大きいと充分な皮脂取り性能が得られないおそれがあり好ましくない。また、表面粗さが最大高さＲｚで３００μｍ以下（より好ましくは５０〜２５０μｍ）であることが、充分な皮脂取り性能を得る上で好ましい。 The sebum-removing cloth of the present invention is a sebum-removing cloth composed of the above-mentioned fabric, and it is important that the surface roughness of the cloth surface is 30 μm or less (preferably 1 to 25 μm) in terms of arithmetic average height Ra. is there. If the arithmetic average height Ra is larger than 30 μm, that is, if the surface roughness is large, there is a possibility that sufficient sebum removal performance may not be obtained, which is not preferable. Further, the surface roughness is preferably 300 μm or less (more preferably 50 to 250 μm) at the maximum height Rz in order to obtain sufficient sebum removal performance.
本発明の皮脂取りクロスを構成する布帛は例えば以下の製造方法により製造することができる。まず、海成分と、その径が１０〜１０００ｎｍである島成分とで形成される海島型複合繊維（フィラメント糸Ａ用繊維）を用意する。かかる海島型複合繊維としては、特開２００７−２３６４号公報に開示された海島型複合繊維マルチフィラメント（島数１００〜１５００）が好ましく用いられる。 The fabric which comprises the sebum removing cloth of this invention can be manufactured with the following manufacturing methods, for example. First, a sea-island type composite fiber (fiber for filament yarn A) formed of a sea component and an island component having a diameter of 10 to 1000 nm is prepared. As such a sea-island type composite fiber, a sea-island type composite fiber multifilament (100 to 1500 islands) disclosed in Japanese Patent Application Laid-Open No. 2007-2364 is preferably used.
ここで、海成分ポリマーとしては、繊維形成性の良好なポリエステル、ポリアミド、ポリスチレン、ポリエチレンなどが好ましい。例えば、アルカリ水溶液易溶解性ポリマーとしては、ポリ乳酸、超高分子量ポリアルキレンオキサイド縮合系ポリマー、ポリエチレングルコール系化合物共重合ポリエステル、ポリエチレングリコール系化合物と５−ナトリウムスルホン酸イソフタル酸の共重合ポリエステルが好適である。なかでも、５−ナトリウムスルホイソフタル酸６〜１２モル％と分子量４０００〜１２０００のポリエチレングルコールを３〜１０重量％共重合させた固有粘度が０．４〜０．６のポリエチレンテレフタレート系共重合ポリエステルが好ましい。 Here, as the sea component polymer, polyester, polyamide, polystyrene, polyethylene and the like having good fiber forming properties are preferable. For example, as an easily soluble polymer in an alkaline aqueous solution, polylactic acid, an ultra-high molecular weight polyalkylene oxide condensation polymer, a polyethylene glycol compound copolymer polyester, a copolymer polyester of polyethylene glycol compound and 5-sodium sulfonic acid isophthalic acid may be used. Is preferred. Among them, a polyethylene terephthalate copolymer polyester having an intrinsic viscosity of 0.4 to 0.6 obtained by copolymerizing 6 to 12 mol% of 5-sodium sulfoisophthalic acid and 3 to 10% by weight of polyethylene glycol having a molecular weight of 4000 to 12000. Is preferred.
一方、島成分ポリマーは、繊維形成性のポリエチレンテレフタレートやポリトリメチレンテレフタレート、ポリブチレンテレフタレート、ポリ乳酸、第３成分を共重合させたポリエステルなどのポリエステルが好ましい。該ポリマー中には、本発明の目的を損なわない範囲内で必要に応じて、微細孔形成剤、カチオン染料可染剤、着色防止剤、熱安定剤、蛍光増白剤、艶消し剤、着色剤、吸湿剤、無機微粒子が１種または２種以上含まれていてもよい。 On the other hand, the island component polymer is preferably a polyester such as a fiber-forming polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polylactic acid, or a polyester obtained by copolymerizing a third component. In the polymer, a fine pore forming agent, a cationic dye dyeing agent, an anti-coloring agent, a heat stabilizer, a fluorescent whitening agent, a matting agent, a coloring agent may be added as necessary within the range not impairing the object of the present invention. 1 type (s) or 2 or more types of an agent, a hygroscopic agent, and inorganic fine particles may be contained.
上記の海成分ポリマーと島成分ポリマーからなる海島型複合繊維は、溶融紡糸時における海成分の溶融粘度が島成分ポリマーの溶融粘度よりも大きいことが好ましい。また、島成分の径は、１０〜１０００ｎｍの範囲とする必要がある。その際、該径が真円でない場合は外接円の直径を求める。前記の海島型複合繊維において、その海島複合重量比率（海：島）は、４０：６０〜５：９５の範囲が好ましく、特に３０：７０〜１０：９０の範囲が好ましい。 The sea-island composite fiber composed of the sea component polymer and the island component polymer preferably has a sea component melt viscosity higher than that of the island component polymer during melt spinning. Further, the diameter of the island component needs to be in the range of 10 to 1000 nm. At this time, if the diameter is not a perfect circle, the diameter of the circumscribed circle is obtained. In the sea-island composite fiber, the sea-island composite weight ratio (sea: island) is preferably in the range of 40:60 to 5:95, and particularly preferably in the range of 30:70 to 10:90.
かかる海島型複合繊維マルチフィラメントは、例えば以下の方法により容易に製造することができる。すなわち、前記の海成分ポリマーと島成分ポリマーとを用い溶融紡糸する。溶融紡糸に用いられる紡糸口金としては、島成分を形成するための中空ピン群や微細孔群を有するものなど任意のものを用いることができる。吐出された海島型断面複合繊維マルチフィラメント糸は、冷却風によって固化され、好ましくは４００〜６０００ｍ／分で溶融紡糸された後に巻き取られる。得られた未延伸糸は、別途延伸工程をとおして所望の強度・伸度・熱収縮特性を有する複合繊維とするか、あるいは、一旦巻き取ることなく一定速度でローラーに引き取り、引き続いて延伸工程をとおした後に巻き取る方法のいずれでも構わない。さらに、仮撚捲縮加工を施してもよい。かかる海島型複合繊維マルチフィラメントにおいて、単糸繊維繊度、フィラメント数、総繊度としてはそれぞれ単糸繊維繊度０．５〜１０．０ｄｔｅｘ、フィラメント数５〜７５本、総繊度３０〜１７０ｄｔｅｘ（好ましくは３０〜１００ｄｔｅｘ）の範囲内であることが好ましい。ここで、
次いで、かかる海島型複合繊維マルチフィラメントを単独で用いるか、必要に応じて単繊維径が１０００ｎｍより大の弾性繊維糸など他の糸とともに用いて、布帛を製編または製織する。その際、布帛の組織は特に限定されず、通常の方法で得られた、織物または編物または不織布でよい。特に布帛のソフト性および肌へのフィット性を得る上で編物が好ましい。
Such sea-island type composite fiber multifilament can be easily produced by, for example, the following method. That is, melt spinning is performed using the sea component polymer and the island component polymer. As the spinneret used for melt spinning, any one such as a hollow pin group for forming an island component or a group having a fine hole group can be used. The discharged sea-island type cross-section composite fiber multifilament yarn is solidified by cooling air and is preferably wound after being melt spun at 400 to 6000 m / min. The obtained undrawn yarn is made into a composite fiber having desired strength, elongation, and heat shrinkage properties through a separate drawing process, or is taken up by a roller at a constant speed without being wound once, and subsequently drawn. Any of the methods of winding after passing through may be used. Further, false twist crimping may be performed. In such a sea-island type composite fiber multifilament, the single yarn fiber fineness, the number of filaments, and the total fineness are respectively single yarn fiber fineness of 0.5 to 10.0 dtex, number of filaments of 5 to 75, and total fineness of 30 to 170 dtex (preferably 30 It is preferable to be within the range of ˜100 dtex). here,
Subsequently, the sea-island type composite fiber multifilament is used alone, or is knitted or woven using other yarns such as elastic fiber yarns having a single fiber diameter larger than 1000 nm as necessary. In that case, the structure of the fabric is not particularly limited, and may be a woven fabric, a knitted fabric, or a nonwoven fabric obtained by a usual method. In particular, a knitted fabric is preferable in obtaining the softness of the fabric and the fit to the skin.
ここで、織物の織組織は、平織、斜文織、朱子織等の三原組織、変化組織、変化斜文織等の変化組織、たて二重織、よこ二重織等の片二重組織、たてビロード、タオル、ベロア等のたてパイル織、別珍、よこビロード、ベルベット、コール天等のよこパイル織などが例示される。なお、これらの織組織を有する織物は、レピア織機やエアージェット織機など通常の織機を用いて通常の方法により製織することができる。層数も特に限定されず単層でもよいし２層以上の多層構造を有する織物でもよい。 Here, the woven structure of the woven fabric is a three-fold structure such as plain weave, oblique weave, satin weave, etc., altered structure such as altered weave, altered weave weave, single double structure such as vertical double weave, weft double weave, etc. Examples include vertical pile weaves such as fresh velvet, towels and velours, bevel pile weaves such as benjin, weft velvet, velvet and call heaven. In addition, the textile fabric which has these woven structures can be woven by a normal method using normal looms, such as a rapier loom and an air jet loom. The number of layers is not particularly limited and may be a single layer or a woven fabric having a multilayer structure of two or more layers.
編物の種類は、よこ編物であってもよいしたて編物であってもよい。よこ編組織としては、天竺、ゴム編、両面編、パール編、タック編、浮き編、片畔編、レース編、添え毛編等が好ましく例示される。天竺の編組織で２種の糸条で複合ループを形成したプレーテイング天竺、その際、一方の糸条を弾性繊維糸条としたベア天竺などが好適に例示される。たて編組織としては、シングルデンビー編、シングルアトラス編、ダブルコード編、ハーフ編、裏毛編、ジャガード編等が好ましく例示される。なお、製編は、丸編機、横編機、トリコット編機、ラッシェル編機等など通常の編機を用いて通常の方法により製編することができる。層数も特に限定されず単層でもよいし２層以上の多層構造を有する編物でもよい。 The type of knitted fabric may be a weft knitted fabric or a newly knitted fabric. Preferable examples of the weft knitting structure include tenshi, rubber knitting, double-sided knitting, pearl knitting, tuck knitting, float knitting, one-side knitting, lace knitting, and bristle knitting. Preferred examples include a platen sheet in which a composite loop is formed by two types of yarns in a knitted structure of a sheet, and a bare sheet having one fiber as an elastic fiber yarn. Preferred examples of the warp knitting structure include a single denby knitting, a single atlas knitting, a double cord knitting, a half knitting, a back knitting, a jacquard knitting and the like. The knitting can be knitted by a normal method using a normal knitting machine such as a circular knitting machine, a flat knitting machine, a tricot knitting machine, and a Raschel knitting machine. The number of layers is not particularly limited and may be a single layer or a knitted fabric having a multilayer structure of two or more layers.
次いで、該布帛にアルカリ水溶液処理を施し、前記海島型複合繊維の海成分をアルカリ水溶液で溶解除去することにより、海島型複合繊維マルチフィラメントを単繊維径が１０〜１０００ｎｍのフィラメント糸Ａとする。その際、アルカリ水溶液処理の条件としては、濃度１〜４％のＮａＯＨ水溶液を使用し５５〜７０℃の温度で処理するとよい。 Next, the fabric is subjected to an alkaline aqueous solution treatment, and sea components of the sea-island composite fiber are dissolved and removed with an alkaline aqueous solution, whereby the sea-island composite fiber multifilament is made into a filament yarn A having a single fiber diameter of 10 to 1000 nm. At that time, the alkaline aqueous solution treatment may be performed at a temperature of 55 to 70 ° C. using a NaOH aqueous solution having a concentration of 1 to 4%.
さらに、該布帛にスパンレース用のウオーターニードル装置で高圧水を噴射すると、凝集密着しているフィラメント糸Ａをばらけさせ、前記のような表面粗さを有する布帛がえられ易く好ましい。 Furthermore, when high-pressure water is sprayed onto the fabric with a spunlace water needle device, it is preferable that the filament yarn A which is coherently adhered is scattered and a fabric having the surface roughness as described above is easily obtained.
次いで、該布帛にバフ加工を施し布帛表面を平坦にすることにより、本発明の皮脂取りクロスが得られる。ここで、布帛にバフ加工を施さない場合は、クロス表面が平坦にならないため、クロス表面における表面粗さが算術平均高さＲａで３０μｍ以下の皮脂取りクロスが得られないおそれがあり好ましくない。なお、かかるバフ加工は通常のバフ加工でよく、例えば、粒度＃５０〜＃２００番のエメリーペーパーを用いたバフ加工でよい。 Next, the sebum removing cloth of the present invention is obtained by buffing the fabric to make the surface of the fabric flat. Here, when the cloth is not buffed, the cloth surface does not become flat, and therefore, there is a possibility that a sebum-removable cloth having an arithmetic average height Ra of 30 μm or less may not be obtained. The buffing may be a normal buffing process, for example, a buffing process using emery paper having a grain size of # 50 to # 200.
また、常法の染色加工、起毛加工、撥水加工、吸水加工、バッフィング加工、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前記布帛に付加適用してもよい。特に、布帛に染色加工（例えば明度が１０〜９０の範囲内。）が施されていると、皮脂取り前後の色の変化により皮脂が取れたことを目で確認することができ好ましい。 In addition, conventional dyeing, brushing, water-repellent, water-absorbing, buffing, UV shielding or antistatic agent, antibacterial agent, deodorant, insect repellent, phosphorescent agent, retroreflective agent, negative ion Various processings that impart functions such as a generator may be additionally applied to the fabric. In particular, it is preferable that the fabric is dyed (for example, the brightness is in the range of 10 to 90) because it is possible to visually confirm that the sebum has been removed due to a change in color before and after removing the sebum.
かかる布帛をそのまま用いて皮脂取りクロスとしてもよいし、適宜縫製してもよいし、アクセサリーなどの付属品を取りつけて皮脂取りクロスとしてもよい。例えば、布帛周辺反末を飾りミシンで縫製すると、ホツレ防止にもなり、高級感も得られる。 Such a cloth may be used as it is as a sebum-removing cloth, or may be sewn appropriately, or an accessory such as an accessory may be attached as a sebum-removing cloth. For example, if the fabric periphery is sewn with a decorative sewing machine, it will also prevent fraying and give a high-class feeling.
かくして得られた皮脂取りクロスには、超極細繊維である前記フィラメント糸Ａが含まれており、クロス表面が平坦なので、肌へのフィット性がよく、優れた皮脂取り性能が得られる。その際、布帛の表面および裏面に前記フィラメント糸Ａのみが露出していると、表面および裏面がフラットとなり、肌への刺激が少なく、優れた皮脂取り性能が得られる。 The sebum-removing cloth thus obtained contains the filament yarn A, which is a superfine fiber, and since the cloth surface is flat, the fit to the skin is good and excellent sebum removal performance is obtained. At that time, if only the filament yarn A is exposed on the front and back surfaces of the fabric, the front and back surfaces are flat, there is little irritation to the skin, and excellent sebum removal performance is obtained.
また、かかる皮脂取りクロスにおいて、クロスの厚さが０．２〜１．０ｍｍの範囲内であることが好ましい。クロスの厚さが０．２ｍｍよりも小さいと拭取った皮脂が布帛裏面にしみだし、手が汚れるおそれがある。逆に、クロスの厚さが１．０ｍｍよりも大きいと、厚さが厚すぎて収納が困難になるおそれがある。
また、かかる皮脂取りクロスにおいて、布帛の目付けとしては１００〜２５０ｇ／ｍ２の範囲内であることが好ましい。
Moreover, in this sebum removing cloth, the thickness of the cloth is preferably in the range of 0.2 to 1.0 mm. If the thickness of the cloth is smaller than 0.2 mm, the sebum that has been wiped out may ooze out on the back of the fabric and the hands may become dirty. On the other hand, if the thickness of the cloth is larger than 1.0 mm, the thickness is too thick and it may be difficult to store.
Moreover, in this sebum removing cloth, the fabric weight is preferably in the range of 100 to 250 g / m 2 .
ここで、本発明で言う皮脂取りクロスとは、美容やヘルスケアのために使用する皮脂取りクロス全般のことを言い、例えば、洗顔布やメイク落としのための布やパフ、またスキンケアのためのパック、布などだけにととどまらず、保湿成分や美白成分などを肌表面に滞留、また浸透させるためのマッサージャーやパッチ、インナーウエアなど多岐にわたるものである。ここで、美容とは、容姿を美しく整えること全般を言い、具体的にはメイクや化粧落としなどのメイクと呼ばれる分野、スキンケア、ヘアケア、ネイルケア、ボディケアなどのケア分野がある。また、効能としては容姿を一時的に美しく整えるだけでなく、老化防止や若返りなども含まれる。対象とする層は、成人女性だけでなく、男性も含まれ、性別も問わない。また、ヘルスケアとは、美容を除く全ての分野であるが、日常生活一般、健康増進、体質改善、介護などが対象分野となる。このため、対象とする層も、乳児、幼児、学童、生徒、学生、大人、高齢者と年齢層や性別を問わない。また、特に乾燥肌や汗疹、ニキビ、吹き出物、黒ずみのような日常生活は可能であるが、肌にケアが必要な人、あるいはアトピー性皮膚炎や床ずれのような、場合によっては重症の肌疾患患者なども対象となる。 Here, the sebum removing cloth referred to in the present invention refers to all of the sebum removing cloth used for beauty and health care. For example, a cloth or puff for a face wash cloth or makeup remover, or for skin care. It is not limited to packs and cloths, but includes a wide range of massagers, patches, innerwear, etc. for retaining and permeating moisturizing and whitening ingredients on the skin surface. Here, beauty means the overall appearance of the appearance, and specifically includes a field called makeup such as makeup and makeup removal, and a field of care such as skin care, hair care, nail care, and body care. In addition, the effects include not only temporarily improving appearance, but also preventing aging and rejuvenation. The target audience includes not only adult women but also men, regardless of gender. Health care refers to all fields except beauty, but the subject areas include general daily life, health promotion, constitution improvement, and nursing care. For this reason, the target group may be an infant, an infant, a schoolchild, a student, a student, an adult, an elderly person, an age group, or a gender. In addition, daily life such as dry skin, sweats, acne, pimples, darkening is possible, but people who need care for the skin, or severe skin diseases such as atopic dermatitis and bed sores Patients are also targeted.
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。 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.
＜溶融粘度＞乾燥処理後のポリマーを紡糸時のルーダー溶融温度に設定したオリフィスにセットして５分間溶融保持したのち、数水準の荷重をかけて押し出し、そのときのせん断速度と溶融粘度をプロットする。そのプロットをなだらかにつないで、せん断速度−溶融粘度曲線を作成し、せん断速度が１０００秒−１の時の溶融粘度を見る。
＜溶解速度＞海・島成分の各々０．３φ−０．６Ｌ×２４Ｈの口金にて１０００〜２０００ｍ／分の紡糸速度で糸を巻き取り、さらに残留伸度が３０〜６０％の範囲になるように延伸して、８４ｄｔｅｘ／２４ｆｉｌのマルチフィラメントを作製する。これを各溶剤にて溶解しようとする温度で浴比１００にて溶解時間と溶解量から、減量速度を算出した。
＜ナノファイバーのばらけ状態＞繊維構造体を液体窒素に浸漬して固まらせた後カットした後、断面（縦６１μｍ×横８０μｍ、面積４８８０μｍ２）を電子顕微鏡で１０箇所撮影し（倍率１５００倍）、１００本以上のナノファイバーが凝集密着したナノファイバー塊の合計個数をカウントした。合計個数が０個の場合は合格、１個以上の場合は不合格である。
＜目付＞ＪＩＳ Ｌ１０９６ ６．４．２に従って測定した。
＜表面粗さ＞室温２０℃、相対湿度６５％にコントロールされた人工気象室内にて、５ｃｍ角に裁断した試験片を、カラー３Ｄレーザー顕微鏡ＶＫ−８７００（キーエンス社製）を用い、ＪＩＳ Ｂ ０６０１−２００１に準拠して、最大高さＲｚ、算術平均粗さＲａを算出した。
＜皮脂除去性能＞室温２０℃、相対湿度５０％にコントロールされた人工気象室内にて、１５ｃｍ角に裁断し、４辺をオーバーロックミシンで縫製したハンカチを作成した。皮脂の計測には、油分計セブメーターＳＭ８１５（ＣＫ社製）を用い、前額部と小鼻部の皮脂量を事前に計測した。その後、上記ハンカチを３秒間擦ることなく軽くそれぞれの部位に押当て、再び皮脂量をそれぞれの部位にて計測した。皮脂除去率を次の式にて算出した。
皮脂除去率（％）＝（押当て前皮脂量−押当て後皮脂量）／押し当て後皮脂量×１００
<Melting viscosity> The polymer after drying is set in the orifice set to the ruder melting temperature at the time of spinning, melted and held for 5 minutes, extruded with several levels of load, and the shear rate and melt viscosity at that time are plotted. To do. By gently connecting the plots, a shear rate-melt viscosity curve is created, and the melt viscosity when the shear rate is 1000 sec- 1 is observed.
<Dissolution rate> The yarn is wound at a spinning speed of 1000 to 2000 m / min with a 0.3φ-0.6L × 24H base of each of the sea and island components, and the residual elongation is in the range of 30 to 60%. To produce a 84 dtex / 24 fil multifilament. The weight loss rate was calculated from the dissolution time and the dissolution amount at a bath ratio of 100 at a temperature at which the solvent was dissolved in each solvent.
<Dispersed state of nanofibers> After the fiber structure was immersed in liquid nitrogen and solidified and then cut, 10 sections of the cross section (length 61 μm × width 80 μm, area 4880 μm 2 ) were photographed with an electron microscope (magnification 1500 times) ), The total number of nanofiber masses in which 100 or more nanofibers were aggregated and adhered was counted. When the total number is 0, it is acceptable, and when it is 1 or more, it is unacceptable.
<Mass weight> It was measured according to JIS L1096 6.4.2.
<Surface Roughness> JIS B 0601 using a color 3D laser microscope VK-8700 (manufactured by Keyence Corporation) as a test piece cut into a 5 cm square in an artificial weather room controlled at room temperature 20 ° C. and relative humidity 65%. Based on -2001, the maximum height Rz and the arithmetic average roughness Ra were calculated.
<Sebum removal performance> A handkerchief was cut into 15 cm square in an artificial weather chamber controlled at room temperature of 20 ° C. and a relative humidity of 50%, and sewn on an overlock sewing machine on four sides. For the measurement of sebum, an oil meter Cebumeter SM815 (manufactured by CK) was used, and the amount of sebum in the forehead and nose was measured in advance. Thereafter, the handkerchief was lightly pressed against each site without rubbing for 3 seconds, and the amount of sebum was again measured at each site. The sebum removal rate was calculated by the following formula.
Sebum removal rate (%) = (Sebum amount before pressing−Sebum amount after pressing) / Sebum amount after pressing × 100
［実施例１］
島成分としてポリエチレンテレフタレート（２８０℃における溶融粘度が１２００ポイズ）、海成分として５−ナトリウムスルホイソフタル酸６モル％と数平均分子量４０００のポリエチレングリコール６重量％を共重合したポリエチレンテレフタレート（２８０℃における溶融粘度が１７５０ポイズ）を用い（溶解速度比（海／島）＝２３０）、海：島＝３０：７０、島数＝８３６の海島型複合未延伸繊維を、紡糸温度２８０℃、紡糸速度１５００ｍ／分で溶融紡糸して一旦巻き取った。
得られた未延伸糸を、延伸温度８０℃、延伸倍率２．５倍でローラー延伸し、次いで１５０℃で熱セットして巻き取った。得られた海島型複合延伸糸（フィラメント糸Ａ用）は５５ｄｔｅｘ／１０ｆｉｌであり、透過型電子顕微鏡ＴＥＭによる繊維横断面を観察したところ、島の形状は丸形状でかつ島の径は７００ｎｍであった。
[Example 1]
Polyethylene terephthalate (melting viscosity at 280 ° C. at 280 ° C.) as an island component, polyethylene terephthalate (melting at 280 ° C.) copolymerized with 6 mol% of 5-sodium sulfoisophthalic acid and 6% by weight of polyethylene glycol having a number average molecular weight of 4000 as a sea component Viscosity is 1750 poise) (dissolution rate ratio (sea / island) = 230), sea: island = 30: 70, number of islands = 836 sea-island type composite undrawn fiber, spinning temperature: 280 ° C., spinning speed: 1500 m / It was melt-spun in minutes and wound up once.
The obtained undrawn yarn was roller-drawn at a drawing temperature of 80 ° C. and a draw ratio of 2.5 times, and then heat-set at 150 ° C. and wound up. The obtained sea-island type composite drawn yarn (for filament yarn A) was 55 dtex / 10 fil, and the cross section of the fiber was observed with a transmission electron microscope TEM. The shape of the island was round and the diameter of the island was 700 nm. It was.
次いで、前述の海島型複合延伸糸を２８ゲージの通常の丸編ダブル機を使用して、スムース編物を編成した。そして、得られた編地を海島型複合延伸糸の海成分を除去するために、２５ｇ／リットルのＮＡＯＨ水溶液で、７０℃にて３０重量％アルカリ減量した後、常法の染色加工を行った。
次いで、この編地（布帛）に対し、スパンレース用のウオーターニードル装置（噴射孔径：０．１ｍｍ、孔ピッチ：１．０ｍｍ、孔配列：２列千鳥）にて、水圧６０ｋｇ／ｃｍ２、編地の送り速度２ｍ／分、編地の支持メッシュ：５０メッシュの条件で高圧水を噴射した。
次いで、この編地に、粒度＃１５０番のエメリーペーパーを用いてバフ加工を施すことにより、皮脂取りクロスを得た。
得られた皮脂取りクロス（編地）の密度は６３コース／６０ウエール、編地中のマルチフィラメント糸条の総繊度は３７ｄｔｅｘ、単繊維径が７１０ｎｍ、単糸数８３６０、目付け１００ｇ／ｍ２であった。該編物においてナノファイバー同士が凝集密着することなく、ばらけた状態で存在しており、ナノファイバー塊の個数は０個であった。また、表面粗さはＲｚが２１０、Ｒａは１８であった。該皮脂取りクロス（編物）を用いて、皮脂取り性を評価したところ、９３％と極めて高い皮脂除去性を示した。
Next, a smooth knitted fabric was knitted from the above-mentioned sea-island type composite drawn yarn using a 28-gauge ordinary circular knitting double machine. Then, in order to remove the sea component of the sea-island type composite drawn yarn, the obtained knitted fabric was subjected to an ordinary dyeing process after reducing the alkali weight by 30% by weight at 70 ° C. with a 25 g / liter NAOH aqueous solution. .
Next, for this knitted fabric (fabric), with a water needle device for spunlace (injection hole diameter: 0.1 mm, hole pitch: 1.0 mm, hole arrangement: 2-row zigzag), water pressure 60 kg / cm 2, knitted fabric High-pressure water was sprayed under the conditions of a feed rate of 2 m / min and a support mesh of the knitted fabric: 50 mesh.
Subsequently, sebum removing cloth was obtained by buffing the knitted fabric using emery paper having a particle size of # 150.
The density of the sebum removing cloth (knitted fabric) obtained was 63 course / 60 wale, the total fineness of the multifilament yarn in the knitted fabric was 37 dtex, the single fiber diameter was 710 nm, the single yarn number was 8360, and the basis weight was 100 g / m 2. It was. In the knitted fabric, the nanofibers existed in a dispersed state without agglomeration and adhesion, and the number of nanofiber masses was zero. The surface roughness was 210 for Rz and 18 for Ra. When the sebum removing property was evaluated using the sebum removing cloth (knitted fabric), the sebum removing property was as high as 93%.
［比較例１］
実施例１において、バフ加工を施さないこと以外は実施例１と同様にした。得られた皮脂取りクロス（編地）において、表面粗さはＲｚが３７３、Ｒａは３８であった。該皮脂取りクロス（編物）を用いて、皮脂取り性を評価したところ、６０％と低い皮脂除去性を示した。
[Comparative Example 1]
In Example 1, it carried out similarly to Example 1 except not giving a buff process. In the obtained sebum-removing cloth (knitted fabric), the surface roughness was 373 for Rz and 38 for Ra. When the sebum removing property was evaluated using the sebum removing cloth (knitted fabric), the sebum removing property was as low as 60%.
本発明によれば、単繊維径が１０〜１０００ｎｍのフィラメント糸を含む布帛で構成され、優れた皮脂取り性能を有する皮脂取りクロスおよびその製造方法が提供され、その工業的価値は極めて大である。 ADVANTAGE OF THE INVENTION According to this invention, the sebum removal cloth | cross comprised with the fabric containing the filament thread | yarn whose single fiber diameter is 10-1000 nm, and the outstanding sebum removal performance and its manufacturing method are provided, The industrial value is very large. .
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| JP2004293010A (en) * | 2003-03-28 | 2004-10-21 | Toray Ind Inc | Sebum-removing cloth and method for producing the same |
| JP2005330637A (en) * | 2004-04-20 | 2005-12-02 | Toray Ind Inc | Cosmetic tool or health care tool |
| JP2009268795A (en) * | 2008-05-09 | 2009-11-19 | Teijin Fibers Ltd | Sebum removing textile and sebum removing product |
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| JP2005330637A (en) * | 2004-04-20 | 2005-12-02 | Toray Ind Inc | Cosmetic tool or health care tool |
| JP2009268795A (en) * | 2008-05-09 | 2009-11-19 | Teijin Fibers Ltd | Sebum removing textile and sebum removing product |
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| JP2020171719A (en) * | 2020-06-19 | 2020-10-22 | 伊澤タオル株式会社 | Washing towel cloth |
| JP7164214B2 (en) | 2020-06-19 | 2022-11-01 | 伊澤タオル株式会社 | washed toweling |
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