JP6328405B2 - Water-absorbing quick-drying knitted fabric - Google Patents
Water-absorbing quick-drying knitted fabric Download PDFInfo
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Description
本発明は、肌着に適した編地に関するものである。 The present invention relates to a knitted fabric suitable for underwear.
従来から肌着素材は、肌面に直接触れる素材であることから吸水・吸湿性に優れ、ソフトな風合いを有し、肌に安全で安心感のあるコットン素材が主に使用されてきた。一方、コットンに代表されるセルロース繊維は、吸水性に優れるが繊維内部まで水分を保持するため乾きにくい性質があり、疎水性で速乾性に優れるポリエステル繊維などの合成繊維と複合した素材も提案されている。複合素材としては、糸段階で複合紡績する手法が挙げられ、例えば、特許文献１には、芯部にポリエステルフィラメント糸、鞘部にセルロース繊維とポリエステルフィラメントの混繊繊維束からなる複合糸が配され、ポリエステルフィラメントの一部が糸表面にループ状に突出してなる吸汗性と速乾性を有する複合糸が開示され、また、特許文献２には、芯部に異形断面ポリエステルフィラメント糸、鞘部に麻とレーヨンとの混紡糸を配した複合紡績糸によって構成される吸汗速乾編地が開示されている。 Conventionally, underwear materials are materials that touch the skin directly, and therefore, cotton materials that are excellent in water absorption and moisture absorption, have a soft texture, and are safe and secure on the skin have been mainly used. On the other hand, cellulose fibers typified by cotton are excellent in water absorption but retain moisture up to the inside of the fiber, making them difficult to dry, and materials that are combined with synthetic fibers such as polyester fibers that are hydrophobic and excellent in quick drying have also been proposed. ing. Examples of the composite material include a method of performing composite spinning at the yarn stage. For example, Patent Document 1 discloses a composite yarn composed of a polyester filament yarn in the core portion and a mixed fiber bundle of cellulose fibers and polyester filaments in the sheath portion. A composite yarn having a sweat-absorbing property and a quick-drying property in which a part of the polyester filament protrudes in a loop shape on the yarn surface is disclosed, and Patent Document 2 discloses an irregular cross-section polyester filament yarn in the core portion and a sheath portion. A sweat-absorbing quick-drying knitted fabric constituted by a composite spun yarn in which a blended yarn of hemp and rayon is arranged is disclosed.
しかしながら、特許文献１の技術では、複合糸表面にポリエステルフィラメントの一部がループ状に突出しており、また、特許文献２の技術では、紡績糸表面に麻が混紡されていることから粗硬となり、いずれも、鞘部に配したセルロース繊維本来のソフトで優しい風合いが損なわれている。 However, in the technique of Patent Document 1, a part of the polyester filament protrudes in a loop shape on the surface of the composite yarn, and in the technique of Patent Document 2, hemp is mixed on the surface of the spun yarn, so that it becomes coarse. In either case, the original soft and gentle texture of the cellulose fiber disposed in the sheath is impaired.
本発明は、表層部がセルロース系短繊維のみから構成される紡績糸からなる編地であって、セルロース系短繊維特有のソフトな風合いと吸水吸湿性を損なうことなく、かつ、優れた速乾性を有し、吸汗時の肌へのべとつき感を軽減しうる編地を提供することを技術的な課題とする。 The present invention is a knitted fabric comprising a spun yarn whose surface layer portion is composed only of cellulose short fibers, without impairing the soft texture and water absorption and hygroscopicity unique to cellulose short fibers, and excellent quick drying A technical problem is to provide a knitted fabric that can reduce the feeling of stickiness to the skin during sweat absorption.
本発明は、芯にポリエステル短繊維、鞘にセルロース系短繊維を配した２層構造紡績糸のみで編成された編地であり、
鞘のセルロース系短繊維は、単繊維繊度が０．６デシテックス以上１．０デシテックス未満の溶剤紡糸セルロース繊維または超長綿のいずれかであり、
芯のポリエステル短繊維の単繊維繊度が１．０デシテックス未満であり、
該２層構造紡績糸の芯／鞘の構成比率が２０／８０〜４０／６０であり、
編地の裏面には、面積比率４０〜７０％で撥水剤が付与されてなり、撥水剤が付与されてなる撥水部は、連続せずに間隔を設けて付与され、撥水剤が付与されていない非撥水部が、撥水部により分断されることなく編地裏面全体に連続していることを特徴とする吸水速乾編地を要旨とするものである。
The present invention is a knitted fabric knitted only with a two-layer structure spun yarn in which polyester short fibers are arranged in the core and cellulose short fibers are arranged in the sheath,
Cellulose short fibers of the sheath are either solvent-spun cellulose fibers or ultra-long cotton having a single fiber fineness of 0.6 dtex or more and less than 1.0 dtex,
The single fiber fineness of the polyester short fiber of the core is less than 1.0 dtex,
The composition ratio of the core / sheath of the two-layer structure spun yarn is 20/80 to 40/60,
The back surface of the knitted fabric is provided with a water repellent at an area ratio of 40 to 70%, and the water repellent portion to which the water repellent is applied is provided in a continuous manner with an interval. The gist of the water-absorbing quick-drying knitted fabric is characterized in that the non-water-repellent portion to which no water is applied is continuous to the entire back surface of the knitted fabric without being divided by the water-repellent portion.
以下、本発明を詳細に説明する。 Hereinafter, the present invention will be described in detail.
本発明の吸水速乾編地は、芯に特定のポリエステル短繊維、鞘に特定のセルロース系短繊維を配した２層構造紡績糸のみで編成された編地である。 The water-absorbing quick-drying knitted fabric of the present invention is a knitted fabric knitted only with a two-layer structure spun yarn in which a specific polyester short fiber is arranged in the core and a specific cellulose short fiber is arranged in the sheath.
本発明においては、鞘に配するセルロース系短繊維は、特定の単繊維繊度を有する溶剤紡糸セルロース繊維または超長綿のいずれかである。このような溶剤紡糸セルロース繊維および超長綿は、非常にソフトな風合いであり、直接肌に接する用途に極めて適しており、また、湿潤時の強力や寸法安定性にも優れている。本発明で用いる溶剤紡糸セルロース繊維または超長綿以外のセルロース系繊維は、以下の理由により、本発明では適用しない。例えば、麻は、繊維が太く硬いため、肌に接すると粗硬で肌を刺す風合いとなり、また、ビスコースレーヨン短繊維は、湿潤時の強力低下や寸法安定性に欠ける。 In the present invention, the cellulosic short fibers arranged in the sheath are either solvent-spun cellulose fibers or ultra-long cotton having a specific single fiber fineness. Such solvent-spun cellulose fibers and ultra-long cotton have a very soft texture, are extremely suitable for applications in direct contact with the skin, and are excellent in strength and dimensional stability when wet. Cellulosic fibers other than solvent-spun cellulose fibers or ultra-long cotton used in the present invention are not applied in the present invention for the following reasons. For example, hemp fiber is thick and hard, so that when it comes into contact with the skin, it becomes rough and stabs the skin, and viscose rayon short fibers lack strength reduction and dimensional stability when wet.
溶剤紡糸セルロース短繊維としては、レンチング社が展開するリヨセルを用いるとよい。リヨセルは、製造工程段階から一切公害を出さない完全クローズドシステムで生産される環境配慮型の素材であり、ソフトで風合いも良く、高い吸放湿性能を有する。単繊維繊度を、０．６デシテックス以上１．０デシテックス未満とすることにより、２層構造紡績糸とするにあたり、安定した芯鞘構造が得られ、良好に芯部を被覆することができる。 As the solvent-spun cellulose short fiber, lyocell developed by Lenzing may be used. Lyocell is an environmentally friendly material that is produced in a completely closed system that does not cause any pollution from the manufacturing process stage. It is soft, has a good texture, and has a high moisture absorption / release performance. By setting the single fiber fineness to 0.6 dtex or more and less than 1.0 dtex, a stable core-sheath structure can be obtained and a core portion can be satisfactorily covered when forming a two-layer spun yarn.
溶剤紡糸セルロース繊維は原綿特性としてスキンコア構造を有しており、繰返しもみ作用が加わると繊維表層が割れて微細化し、フィブリル化という白化現象が起こりやすい繊維である。染色加工中でのすれあたりや再染色などの再加工を繰り返すと著しくフィブリル化が促進し、外観と風合いを悪化させる要因となる。特に、紡績糸の芯部にポリエステル短繊維を配しているため、高圧高温下での液流染色条件で処理することとなり、フィブリル化が顕著に促進される。フィブリル化を防止する手法として、一般的には生地での後加工で架橋結合による樹脂加工が挙げられるが、この処理では、生地自体の吸水性が阻害される。後加工で生地裏面のみに撥水加工を施す関係上、撥水加工面以外に十分な吸水性を維持しておきたいため生地でのフィブリル化防止加工は適さない。したがって、本発明では、原綿段階でのフィブリル化防止加工が施された溶剤紡糸セルロース繊維を好ましく用いる。原綿段階でのフィブリル化防止加工とは、原綿段階で架橋処理を行うことにより、繊維一本一本について、ノンフィブリル化させる加工である。原綿段階でフィブリル化防止加工を施すことにより、染色加工中の擦れ当たりや着用と洗濯を繰り返し行う中で、溶剤紡糸セルロース繊維がフィブリル化することを防止し、風合いを維持し、白化現象等の製品外観の問題が生じない。原綿段階で行うフィブリル化防止加工としては、原綿でのフィブリル化防止加工は、特開２０００−２７０７８号公報に記載の方法により容易に実施することができ、この方法によれば、繊維本来の吸水性および吸防湿性を損なうことなく、安価に実施できる。 Solvent-spun cellulose fiber has a skin core structure as a raw cotton characteristic, and when repeated scoring action is applied, the fiber surface layer is cracked and refined, and the fiber is likely to undergo a whitening phenomenon called fibrillation. Repeated rework such as scraping and redyeing during dyeing will significantly promote fibrillation, which will deteriorate the appearance and texture. In particular, since the polyester short fibers are arranged in the core portion of the spun yarn, the treatment is performed under the liquid dyeing conditions under high pressure and high temperature, and the fibrillation is remarkably promoted. As a method for preventing fibrillation, generally, resin processing by cross-linking is used in post-processing of the dough, but this treatment inhibits water absorption of the dough itself. Since water repellent treatment is applied only to the back surface of the fabric in post-processing, it is not suitable to prevent fibrillation in the fabric because it is desired to maintain sufficient water absorption in addition to the water repellent surface. Therefore, in the present invention, solvent-spun cellulose fibers that have been subjected to an anti-fibrillation process at the raw cotton stage are preferably used. The fibrillation-preventing process at the raw cotton stage is a process of making each fiber non-fibrillar by performing a crosslinking treatment at the raw cotton stage. By carrying out anti-fibrillation processing at the raw cotton stage, the solvent-spun cellulose fiber is prevented from fibrillating during rubbing and wearing and washing repeatedly during dyeing processing, maintaining the texture, whitening phenomenon, etc. There is no problem with the appearance of the product. As the fibrillation prevention processing performed at the raw cotton stage, the fibrillation prevention processing on the raw cotton can be easily performed by the method described in JP-A-2000-27078. It can be carried out at a low cost without impairing the properties and moisture absorption and moisture resistance.
本発明で用いる超長綿についてであるが、超長綿とは、木綿繊維であって、平均長さが３５ｍｍ以上のものをいう。木綿繊維は、平均長さによって、短繊維綿（平均長さ２１ｍｍ以下）、中繊維綿（平均長さ２１ｍｍを超え２８ｍｍ未満）、長繊維綿（平均長さ２８ｍｍ以上）に分類される。そして、長繊維綿の中でも平均長さが３５ｍｍ以上のものは、超長綿と呼ばれて珍重されている。カリブ海の西インド諸島で生産される「海島綿（Ｓｅａ−Ｉｓｌａｎｄ ｃｏｔｔｏｎ）」や、エジプトの「ギザ４５」、ペルーの「ピマ・コットン」が知られており、これらを用いることができる。超長綿は、手触りがよく、糸にしたときの反射率が高くシルクのような光沢を放ち、また、細くてもある程度の強度を有する糸を製造できることから、薄くて上質の布生地を得ることができる。 As for the super-long cotton used in the present invention, the super-long cotton means a cotton fiber having an average length of 35 mm or more. Cotton fibers are classified according to average length into short fiber cotton (average length of 21 mm or less), medium fiber cotton (average length of more than 21 mm and less than 28 mm), and long fiber cotton (average length of 28 mm or more). Among long-fiber cotton, those having an average length of 35 mm or more are called ultra-long cotton and are prized. "Sea-island cotton" produced in the West Indies of the Caribbean Sea, "Giza 45" in Egypt, and "Pima Cotton" in Peru are known and can be used. Super-long cotton has a good touch, has a high reflectivity when it is made into a yarn, emits silk-like luster, and can produce a yarn with a certain degree of strength even if it is thin. be able to.
本発明における２層構造紡績糸の芯には、単繊維繊度が１．０デシテックス未満のポリエステル短繊維を配する。芯部にポリエステル短繊維を配することにより、紡績糸表面を構成するセルロース系短繊維が吸った汗等の体液は素早く、芯のポリエステル短繊維側に移行し、芯のポリエステル短繊維は保水性を有しないため、良好に拡散して蒸散させることができる。また、本発明では、ポリエステル短繊維の単糸繊度を１．０デシテックス未満とすることにより、ポリエステル特有の剛性が失われ、紡績糸自体が非常に柔軟な糸となる。また、紡績糸の番手を小さく設計することが可能となり、肌着等のインナー用途に非常に適する薄地の生地を得ることができる。 Polyester staple fibers having a single fiber fineness of less than 1.0 dtex are arranged on the core of the two-layer structure spun yarn in the present invention. By placing the polyester short fibers in the core, the body fluid such as sweat absorbed by the cellulose short fibers constituting the surface of the spun yarn quickly moves to the polyester short fibers side of the core, and the core polyester short fibers are water-retaining. Therefore, it can be diffused and evaporated. Further, in the present invention, by setting the single yarn fineness of the polyester short fiber to less than 1.0 dtex, the rigidity specific to the polyester is lost, and the spun yarn itself becomes a very flexible yarn. In addition, it becomes possible to design the yarn count of the spun yarn to be small, and it is possible to obtain a thin fabric that is very suitable for inner use such as underwear.
２層構造紡績糸において、芯と鞘の質量比、すなわち、芯（ポリエステル短繊維）／鞘（セルロース系短繊維）は、２０／８０〜４０／６０である。芯の比率が２０質量％未満となると、本発明が目的とする速乾性を達成し得ないこととなり、一方、芯の比率が４０質量％を超えると、芯部のポリエステル短繊維が紡績糸表面に表出しやすくなり、肌に直に接する部分にポリエステル繊維が存在することになり好ましくない。 In the two-layer structure spun yarn, the mass ratio of the core to the sheath, that is, the core (polyester short fiber) / sheath (cellulosic short fiber) is 20/80 to 40/60. When the core ratio is less than 20% by mass, the intended quick drying property of the present invention cannot be achieved. On the other hand, when the core ratio exceeds 40% by mass, the polyester staple fiber in the core part is the surface of the spun yarn. It is not preferable because the polyester fiber is present in the portion that comes into direct contact with the skin.
２層構造紡績糸の太さは、編地の用途に応じて任意に設定すればよいが、一般には英式綿番手３０／１〜８０／１が好ましく、２層構造紡績糸時の被覆率安定性やダブル丸編み組織で肌着用途に適した生地厚を得るためには４０／１〜６０／１がより好ましい。 The thickness of the two-layer structure spun yarn may be arbitrarily set according to the use of the knitted fabric, but generally, the English cotton count is preferably 30/1 to 80/1, and the coverage at the time of the two-layer structure spun yarn In order to obtain a fabric thickness suitable for an underwear application with stability and a double circular knitting structure, 40/1 to 60/1 is more preferable.
本発明の編地は、上記した２層構造紡績糸のみによって構成されるため、非常に柔らかで良好な風合いを有するものとなる。 Since the knitted fabric of the present invention is composed only of the above-mentioned two-layer structure spun yarn, it has a very soft and good texture.
このような２層構造紡績糸は、通常のリング紡績糸で得ることができる。また、２層構造紡績糸に関しては、上記した芯および鞘を構成する繊維をそれぞれ別口で一連の紡績工程に投入し、途中の粗紡工程又は精紡工程において、芯を構成する繊維からなる繊維束の周囲に、鞘を構成する繊維からなる繊維束を捲回することにより得ることができる。 Such a two-layer structure spun yarn can be obtained with a normal ring spun yarn. Regarding the two-layer structure spun yarn, the fibers constituting the core and the sheath are respectively input into a series of spinning processes at different ports, and the fibers comprising the fibers constituting the core in the intermediate spinning process or the fine spinning process. It can be obtained by winding a fiber bundle comprising fibers constituting the sheath around the bundle.
編地の編組織は、特に限定されないが、ダイヤルとシリンダによる選針で編成されるダブル丸編み組織であり、リブ出会いによるフライス組織や針抜きによるテレコ組織が好ましい。フライスやテレコ組織はその特性からヨコ方向への伸縮性に優れ、肌着用途へ広く応用されており、肌着としての素材風合いとフィット感及び着脱時のしやすさの点で適している。特にヨコ方向の伸長率が１００％以上であれば、無理なく着脱可能で適度なフィット感があり、特に肌着としては好ましい。 Although the knitting structure of the knitted fabric is not particularly limited, it is a double circular knitting structure knitted by selecting needles with a dial and a cylinder, and a milling structure by rib encounter or a teleco structure by needle removal is preferable. The milling and telecoating structures are excellent in stretchability in the horizontal direction due to their characteristics, and are widely applied to underwear applications, and are suitable in terms of material texture and fit as underwear and ease of attachment / detachment. In particular, if the stretch rate in the horizontal direction is 100% or more, it is possible to attach and detach without difficulty, and there is an appropriate fit, which is particularly preferable as an underwear.
本発明の編地には、裏面に撥水剤が付与されている。この撥水剤は、編地の裏面全面に付与されているのではなく、面積比率４０〜７０％で付与され、かつ、撥水剤が付与された撥水部は、連続せずに間隔を設けて存在しており、かつ、撥水剤が付与されてない非撥水部（吸水部）は、撥水部により分断されることなく、編地裏面全体に連続して存在する。 The knitted fabric of the present invention is provided with a water repellent on the back surface. The water repellent is not applied to the entire back surface of the knitted fabric, but is applied at an area ratio of 40 to 70%, and the water repellent portion to which the water repellent is applied is not continuous and has an interval. The non-water-repellent part (water-absorbing part) that is provided and is not provided with the water-repellent agent is continuously present on the entire back surface of the knitted fabric without being divided by the water-repellent part.
編地の面積に対する撥水部の合計面積の比率（撥水部の面積率）が４０％未満であると、吸水速乾性能と肌面へのべとつき抑制効果が十分に得られず、７０％を超えると、滴下法による吸水性が極端に低下し、速乾性に寄与する拡散性も悪化し、目的とする速乾性が得られない。 If the ratio of the total area of the water-repellent part to the area of the knitted fabric (area ratio of the water-repellent part) is less than 40%, the water-absorbing quick-drying performance and the effect of suppressing stickiness to the skin cannot be sufficiently obtained, and 70% If it exceeds 1, the water absorption by the dropping method is extremely lowered, the diffusibility contributing to the quick drying property is also deteriorated, and the intended quick drying property cannot be obtained.
撥水剤は、後述する調製した撥水剤エマルジョンを塗布することにより付与すればよく、従来公知の捺染機等を用いて容易に行うことができる。例えば、ロータリースクリーン捺染機、グラビアローラー捺染機、キスコーター装置等を用いればよい。塗布時には、撥水部同士が接触しないように一定間隔を設けて、吸水部が撥水部により分断されることなく裏綿全体に連続して存在する繰り返しパターンで柄組みされたメッシュを使用し、編地裏面にのみ撥水剤エマルジョンを適用して、編地表面に撥水剤エマルジョンが浸透しないように注意する。撥水部同士が一部で連結し、この連結した撥水部により、吸水部が分断されて囲繞されるようなパターンを選択すれば、撥水剤が付着していない部分である吸水部が、撥水部に仕切られることとなり、その仕切られた吸水部での吸水できる水分量に限界が生じる。そして、その仕切られた箇所で吸水した体液は、表面方向への移動により拡散する以外には、吸水した水分を移行させて、新たに吸水することができないため、一箇所で大量の水分を吸水した場合には拡散速度が著しく低下し、速乾性が劣ることとなる。本発明では、吸水部が撥水部により分断されることなく裏面全体に連続して存在しているため、吸水した体液は、表面方向への移動により拡散すると同時に、編地の面方向にも拡散することができるため、良好な吸水速乾性を発揮できるのである。 The water repellent may be applied by applying a prepared water repellent emulsion, which will be described later, and can be easily performed using a conventionally known printing machine or the like. For example, a rotary screen printing machine, a gravure roller printing machine, a kiss coater device or the like may be used. When applying, use a mesh that is patterned in a repetitive pattern that is continuous across the entire back cotton without gaps between the water-absorbing parts, so that the water-repellent parts do not contact each other. Apply the water repellent emulsion only to the back of the knitted fabric, and make sure that the water repellent emulsion does not penetrate into the surface of the knitted fabric. If the water-repellent parts are connected to each other and a pattern is selected such that the water-absorbing part is divided and surrounded by the connected water-repellent parts, the water-absorbing part that is not attached with the water-repellent agent is obtained. Thus, the water repellent part is partitioned, and the amount of water that can be absorbed by the partitioned water absorbing part is limited. Since the body fluid that has absorbed water at the partitioned location cannot be newly absorbed by transferring the absorbed moisture except by diffusing by movement in the surface direction, it absorbs a large amount of moisture at one location. In this case, the diffusion rate is remarkably lowered and the quick drying property is inferior. In the present invention, since the water absorption part is continuously present on the entire back surface without being divided by the water repellent part, the absorbed body fluid is diffused by movement in the surface direction and at the same time in the surface direction of the knitted fabric. Since it can diffuse, it can exhibit good water absorption and quick drying.
撥水剤を付与する際には、例えば、（ａ）フッ素系撥水化合物、（ｂ）前記フッ素系撥水化合物を架橋させるための架橋剤、（ｃ）ミネラルターペン、（ｄ）非イオン性界面活性剤、（ｅ）水を含有する撥水剤エマルジョンを用いるとよい。そして、前述したプリント加工設備を用いて、編地表面に滲み出ないように、編地裏面のみに付与する。その後、乾燥時にフッ素系撥水化合物を架橋硬化させると共にミネラルターペン及び水を乾燥除去し、ソーピング処理を実施して編地に付着した未反応加工剤や不順物質を綺麗に除去するとよい。上記した撥水剤エマルジョンにおける配合割合は、（ａ）フッ素系撥水化合物；０．１〜１０質量％程度、（ｂ）架橋剤；０．０５〜５質量％程度、（ｃ）ミネラルターペン；３０〜７０質量％程度、（ｄ）非イオン性界面活性剤；０．５〜２．０質量％程度、（ｅ）水；２０〜５０質量％程度とする。なお、各成分の総量は１００質量％である。 When applying the water repellent, for example, (a) a fluorine-based water repellent compound, (b) a cross-linking agent for crosslinking the fluorine-based water repellent compound, (c) a mineral terpene, (d) nonionic A water repellent emulsion containing a surfactant and (e) water may be used. And using the printing processing equipment mentioned above, it gives only to the knitted fabric back surface so that it may not ooze out to the knitted fabric surface. Thereafter, the fluorine-based water repellent compound is crosslinked and cured at the time of drying, and the mineral turpentine and water are dried and removed, and a soaping process is performed to cleanly remove the unreacted processing agent and irregular substances adhering to the knitted fabric. The blending ratio in the water repellent emulsion is as follows: (a) fluorinated water repellent compound; about 0.1 to 10% by mass; (b) cross-linking agent; about 0.05 to 5% by mass; (c) mineral terpene; About 30 to 70% by mass, (d) nonionic surfactant; about 0.5 to 2.0% by mass, (e) water; about 20 to 50% by mass. In addition, the total amount of each component is 100 mass%.
フッ素系撥水化合物は、代表としてパーフルオロアルキルエチルアクリレート共重合体等のフルオロアクリレート系重合体等が使用できる。撥水化合物の中でもフッ素系のものを使用するのは、ミネラルターペンによって増粘効果が顕著であり、しかも架橋反応が阻害されにくいからである。 As the fluorine-based water repellent compound, a fluoroacrylate polymer such as a perfluoroalkylethyl acrylate copolymer can be used as a representative. The reason why fluorine-based compounds are used among water-repellent compounds is that the thickening effect is remarkable by the mineral terpenes, and the crosslinking reaction is hardly inhibited.
架橋剤は、代表として４，４’−ビス（エチレンイミノカルボニルアミノ）ジフェニルメタン等のイソシアネート系化合物等が使用できる。ミネラルターペンは、水と共に使用して増粘作用を奏するものである。 As the cross-linking agent, isocyanate compounds such as 4,4'-bis (ethyleneiminocarbonylamino) diphenylmethane can be typically used. Mineral terpenes are used with water to provide a thickening action.
非イオン性界面活性剤としては、ポリオキシエチレンアルキルエーテル等のポリオキシアルキレンアルキルエーテルを使用することが好ましい。非イオン性界面活性剤は、ミネラルターペンと水とを安定なエマルジョン状に調製する作用を奏するものであり、アニオン性界面活性剤やカチオン性界面活性剤は、フッ素系撥水化合物の撥水性や架橋剤の架橋効果に悪影響を及ぼす恐れがあるため、使用しない方が好ましい。水は、非イオン性界面活性剤の界面活性作用によって、ミネラルターペンと混合し、増粘作用を奏するものである。また、撥水剤エマルジョンを適度な粘度の溶液として取り扱うために用いられるものである。撥水剤エマルジョンは、水とミネラルターペンとの混合攪拌により、高粘度となっている。具体的には、５０００〜１３０００ｃｐｓである。使用する生地が撥水剤エマルジョンを浸透しやすいものである場合には、比較的高粘度、具体的には１００００〜１３０００ｃｐｓにするのが好ましい。また、逆に撥水剤エマルジョンを浸透しにくいものである場合には、比較的低粘度、具体的には、５０００〜７０００ｃｐｓ程度でよい。なお、撥水剤エマルジョンの粘度は、ＴＶＣ−５形粘度計（東機産業株式会社製、Ｍｏｄｅｌ ＴＶＣ−５ ＶＩＳＣＯＭＥＴＥＲ）で測定されるものである。 As the nonionic surfactant, it is preferable to use a polyoxyalkylene alkyl ether such as polyoxyethylene alkyl ether. Nonionic surfactants have the effect of preparing mineral terpenes and water in a stable emulsion, and anionic surfactants and cationic surfactants are used for the water repellency of fluorine-based water repellent compounds. It is preferable not to use the crosslinking agent because it may adversely affect the crosslinking effect of the crosslinking agent. Water is mixed with mineral terpenes by the surface active action of a nonionic surfactant, and exhibits a thickening action. Further, it is used for handling the water repellent emulsion as a solution having an appropriate viscosity. The water repellent emulsion has a high viscosity due to mixing and stirring of water and mineral turpentine. Specifically, it is 5000-13000 cps. When the fabric to be used is one that easily penetrates the water repellent emulsion, it is preferable to have a relatively high viscosity, specifically 10000 to 13000 cps. On the other hand, when it is difficult to penetrate the water repellent emulsion, the viscosity may be relatively low, specifically about 5000 to 7000 cps. The viscosity of the water repellent emulsion is measured with a TVC-5 viscometer (manufactured by Toki Sangyo Co., Ltd., Model TVC-5 VISCOMETER).
本発明の吸水速乾性編地は、インナー用途として幅広く好適に使用できる。なかでも、特にセルロース短繊維特有のソフトな風合いと吸水吸湿性を要望されるレディース肌着用途に好適である。 The water-absorbing quick-drying knitted fabric of the present invention can be used widely and suitably for inner applications. Especially, it is suitable for the ladies' underwear use for which the soft texture peculiar to a cellulose short fiber and water absorption are required.
本発明によれば、編地を構成する紡績糸の表層部がセルロース短繊維のみにより構成され、芯部には特定単糸繊度のポリエステル短繊維が配されており、着用時の風合いはあたかも紡績糸がセルロース短繊維のみから構成されると錯覚するほどの柔らかな風合いを有しながら、芯部に特定単糸繊度のポリエステル短繊維が配され、かつ、編地の裏面には、特定のパターンにより撥水剤が付与されているため。セルロース系短繊維特有のソフトな風合いと吸水吸湿性を損なうことなく、優れた速乾性を有し、かつ、吸汗時の肌へのべとつき感が発生しにくい吸水速乾編地を提供することができる。 According to the present invention, the surface layer portion of the spun yarn constituting the knitted fabric is composed only of cellulose short fibers, and the polyester core fibers of a specific single yarn fineness are arranged in the core portion. Polyester short fibers with a specific single yarn fineness are arranged in the core while having a soft texture that makes the illusion that the yarn is composed only of cellulose short fibers, and the back of the knitted fabric has a specific pattern. Because the water repellent is given. Providing a water-absorbing quick-drying knitted fabric that has excellent quick-drying properties without impairing the soft texture and water-absorbing properties unique to cellulosic short fibers, and that is less likely to feel sticky to the skin during sweat absorption. it can.
次に、本発明を実施例によって具体的に説明する。なお、実施例、比較例における編物の評価は、下記の方法に準じて実施した。
（１）吸水性（適下法）
編地裏面の吸水性をＪＩＳ Ｌ １９０７に基づき測定した。吸水性の評価において、１２秒を超えると十分な吸水拡散性が得られず、速乾性を損ねるだけでなく肌へのべとつき感も強くなる。好ましくは２秒以下である。
（２）拡散性（残留水分率）
天秤の上に乗せたガラス板の上に０．６ｇの蒸留水を中央部に滴下する。１０ｃｍ×１０ｃｍにカットした測定試料の編地裏面が水分側となるようにガラス板上の蒸留水滴下箇所に試料を載せた後、質量変化を測定し、残留水分率が１０％に至るまでの時間を測定する。なお、残留水分率が１０％に至るまでの時間は、６０分以内であると拡散性が良好であり、速乾性を体感し得る編地である。
（３）移行水分率
天秤の上に乗せたガラス板の上に、１０ｃｍ×１０ｃｍにカットした測定試料の編地裏面が表面になるよう載置する。試料中央部に０．２ｇの蒸留水を集中滴下し、３０秒放置する。次いで、測定試料上に濾紙を載置したうえでプラスチック板を載置し、そのうえから２０ｇｆ／ｃｍ２の荷重を付加して２秒間経過後に、荷重を取り除き、濾紙に付着した水分量を測定し、（移行水分率（％）＝濾紙に移行した水分量／初期の水分量×１００）として算出する。移行水分率は、２０％以下であることが好ましい。２０％を超えるものは、吸汗した水分が表面側へ素早く移行せずに裏面部分に保持されやすく、肌へのべとつきがあり不快な着用感となりやすい。
Next, the present invention will be specifically described with reference to examples. In addition, evaluation of the knitted fabric in an Example and a comparative example was implemented according to the following method.
(1) Water absorption (appropriate method)
The water absorption of the back side of the knitted fabric was measured based on JIS L 1907. In the evaluation of water absorption, if it exceeds 12 seconds, sufficient water absorption diffusibility cannot be obtained, and not only the quick-drying property is impaired but also the feeling of stickiness to the skin becomes strong. Preferably it is 2 seconds or less.
(2) Diffusivity (residual moisture content)
On the glass plate placed on the balance, 0.6 g of distilled water is dropped at the center. After placing the sample on the distilled water dropping part on the glass plate so that the back side of the knitted fabric of the measurement sample cut to 10 cm × 10 cm is on the moisture side, the mass change is measured until the residual moisture content reaches 10%. Measure time. In addition, when the time until the residual moisture content reaches 10% is within 60 minutes, the diffusibility is good, and the knitted fabric can feel quick-drying.
(3) Moisture transfer rate Placed on the glass plate placed on the balance so that the back side of the knitted fabric of the measurement sample cut to 10 cm × 10 cm becomes the surface. Concentrate and drop 0.2 g of distilled water on the center of the sample and leave it for 30 seconds. Next, a filter paper is placed on the measurement sample, a plastic plate is placed thereon, a load of 20 gf / cm 2 is added from the filter plate, and after 2 seconds, the load is removed, and the amount of water adhering to the filter paper is measured. , (Migrated moisture percentage (%) = moisture content transferred to filter paper / initial moisture content × 100). The migration moisture content is preferably 20% or less. If it exceeds 20%, the absorbed moisture will not be transferred quickly to the front side, but will be easily retained on the back side, and will be sticky to the skin and uncomfortable to wear.
実施例１
ポリエステル短繊維（０．６ｄｔｅｘ×３４ｍｍ）及びエジプト超長綿の各原綿をそれぞれ別々に紡績工程に投入し、芯／鞘＝３０／７０となる２層構造粗糸を作成した後、リング精紡によりポリエステル短繊維／超長綿＝３０／７０の英式綿番手５０／１となる２層構造紡績糸を得た。次に、得られた２層構造紡績糸を用いて福原精機製３０インチ×２２ゲージ、針本数１８００本のダブル編機でフライス生機を作成した。綿／ポリエステルの精練・漂白処理を行い、目付１４０ｇ／ｍ２のプリント前編地を準備した。
Example 1
Polyester short fibers (0.6 dtex x 34 mm) and Egyptian ultra-long cotton are put into the spinning process separately to create a two-layer roving with a core / sheath of 30/70, then ring spinning As a result, a double-layered spun yarn having a polyester short fiber / super-long cotton = 30/70 and an English cotton count of 50/1 was obtained. Next, using the obtained double-layer structure spun yarn, a milling machine was made with a double knitting machine of 30 inches × 22 gauges and 1,800 needles made by Fukuhara Seiki. Cotton / polyester was scoured and bleached to prepare a print knitted fabric with a basis weight of 140 g / m 2 .
得られた編地に、前処理として浸透助剤（古川化学工業株式会社製、商品名「Ｐｅｎｅｚｏｌ Ｓ−２０４」）を１５０ｇ／ｌの濃度に調整した浸透助剤溶液をディッピングによりピックアップ率１００％（１４５ｇ／ｍ２の付与量）で含浸乾燥して付与した。前処理後、下記撥水剤エマルジョン（粘度 １２０００ｃｐｓ）を使用して、一ノ瀬ＲＳＸロータリースクリーン捺染機（１２５メッシュ使用）にて、ニット生地裏面に撥水部の面積６０％、吸水部が撥水部で分断されることなく裏面全体に連続してなり、個々の撥水部の形状がドット柄となる撥水プリントを実施した。撥水プリント後、連続する熱風循環コンベアー式乾燥機に導入し温度１６０℃で２分間乾燥した。その後、日阪製液流染色機（商品名：スイングエース）にて６０℃×３０分の湯洗いを行い、仕上げセット後１３５ｇ／ｍ２の実施例１の吸水速乾編地を得た。
［撥水剤エマルジョン］
ＷＲ Ｐａｓｔｅ ＳＩＤ（古川化学工業株式会社製） ７０質量部
フィクサー７００（古川化学工業株式会社製） ２質量部
増粘剤 １８質量部
水 １０質量部
The obtained knitted fabric is pre-treated with a penetration aid solution (made by Furukawa Chemical Co., Ltd., trade name “Penezol S-204”) adjusted to a concentration of 150 g / l. It was impregnated and dried (applied amount of 145 g / m 2 ). After the pre-treatment, using the following water repellent emulsion (viscosity 12000 cps), using the Ichinose RSX rotary screen printing machine (using 125 mesh), the area of the water repellent part is 60% on the back of the knit fabric and the water absorbing part is the water repellent part. The water-repellent print was carried out in such a way that it was continuous on the entire back surface without being divided by and the shape of each water-repellent part was a dot pattern. After the water-repellent printing, it was introduced into a continuous hot air circulating conveyor dryer and dried at a temperature of 160 ° C. for 2 minutes. Thereafter, the water-washing machine (trade name: Swing Ace) manufactured by Nisaka was washed with hot water at 60 ° C. for 30 minutes to obtain 135 g / m 2 of a water-absorbing quick-drying knitted fabric of Example 1 after finishing setting.
[Water repellent emulsion]
WR Paste SID (Furukawa Chemical Co., Ltd.) 70 parts by weight Fixer 700 (Furukawa Chemical Co., Ltd.) 2 parts by weight Thickener 18 parts by weight Water 10 parts by weight
実施例２
実施例１において、紡績糸の鞘部に配するセルロース系短繊維として、原綿架橋処理を施したマイクロリヨセル０．９ｄｔｅｘ×３４ｍｍを使用したこと以外は、実施例１と同様にし、仕上げセット後１３５ｇ／ｍ２の実施例２の吸水速乾編地を得た。
Example 2
In Example 1, as the cellulose-based short fiber to be arranged in the sheath portion of the spun yarn, the same procedure as in Example 1 was used except that a micro lyocell 0.9 dtex × 34 mm subjected to raw cotton crosslinking treatment was used, and 135 g after finishing set. A water-absorbing quick-drying knitted fabric of Example 2 at / m 2 was obtained.
比較例１
実施例１において得られた撥水プリント前の編地を、撥水プリント加工は施さず、一般的な柔軟吸水仕上げを行い、目付１４０ｇ／ｍ２の編地を得た。
Comparative Example 1
The knitted fabric before water-repellent printing obtained in Example 1 was not subjected to water-repellent printing and was subjected to a general soft water-absorbing finish to obtain a knitted fabric with a basis weight of 140 g / m 2 .
比較例２
実施例１において、撥水プリントにおいて、撥水部のプリント柄が格子柄（撥水付与部の線の幅が約１ｍｍ）、撥水部の面積率が６０％となる撥水プリントを行ったこと以外は、実施例１と同様にして、仕上げセット後１４０ｇ／ｍ２の編地を得た。
Comparative Example 2
In Example 1, in the water repellent print, a water repellent print was performed in which the printed pattern of the water repellent part was a lattice pattern (the width of the line of the water repellent imparting part was about 1 mm) and the area ratio of the water repellent part was 60%. Except for this, a knitted fabric of 140 g / m 2 was obtained after finishing set in the same manner as in Example 1.
得られた実施例１、２、比較例１、２の編地について、評価結果を表１に示す。 Table 1 shows the evaluation results of the obtained knitted fabrics of Examples 1 and 2 and Comparative Examples 1 and 2.
表１より明らかなように、実施例１、２は、吸水速乾性に優れ、風合いも良好であった。
As is apparent from Table 1, Examples 1 and 2 were excellent in water-absorbing quick-drying properties, and the texture was also good.
Claims (2)
鞘のセルロース系短繊維は超長綿であり、
芯のポリエステル短繊維の単繊維繊度が１．０デシテックス未満であり、
該２層構造紡績糸の芯／鞘の構成比率が２０／８０〜４０／６０であり、
編地の裏面には、面積比率４０〜７０％で撥水剤が付与されてなり、撥水剤が付与されてなる撥水部は、連続せずに間隔を設けて付与され、撥水剤が付与されていない非撥水部が、撥水部により分断されることなく編地裏面全体に連続していることを特徴とする吸水速乾編地。 It is a knitted fabric knitted only with a two-layer spun yarn with polyester short fibers in the core and cellulose short fibers in the sheath,
Cellulose short fibers of the sheath are super long cotton ,
The single fiber fineness of the polyester short fiber of the core is less than 1.0 dtex,
The composition ratio of the core / sheath of the two-layer structure spun yarn is 20/80 to 40/60,
The back surface of the knitted fabric is provided with a water repellent at an area ratio of 40 to 70%, and the water repellent portion to which the water repellent is applied is provided in a continuous manner with an interval. The water-absorbing quick-drying knitted fabric is characterized in that the non-water-repellent portion to which no water is applied is continuous over the entire back surface of the knitted fabric without being divided by the water repellent portion.
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| CN104970451A (en) * | 2015-07-17 | 2015-10-14 | 爱谱诗（苏州）服装有限公司 | Novel anti-bacterial and blended underwear fabric |
| CN106192177B (en) * | 2016-08-31 | 2018-11-02 | 武汉爱帝高级服饰有限公司 | One-way wet-guide moisture absorption heating is knitted fabric and preparation method thereof |
| WO2020185547A1 (en) * | 2019-03-08 | 2020-09-17 | Vans, Inc. | Article comprising a natural fabric and a patterned wicking barrier |
| CN111172651B (en) * | 2020-01-16 | 2021-07-16 | 东华大学 | Moisture-absorbing quick-drying double-layer knitted fabric and preparation method thereof |
| CN111172652B (en) * | 2020-01-16 | 2021-06-04 | 东华大学 | Moisture-absorbing cool double-layer fabric and preparation method thereof |
| CN112941708B (en) * | 2021-01-27 | 2021-12-21 | 鲁泰纺织股份有限公司 | Pure cotton high-resilience knitted shirt fabric and production process thereof |
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| JPH09143836A (en) * | 1995-11-29 | 1997-06-03 | Unitika Ltd | Fibrilated core-sheath composite spun yarn woven or knitted fabric |
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