JP3889652B2 - Hygroscopic exothermic composite fiber - Google Patents
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Description
【０００１】
【発明の属する技術分野】
本発明は、吸湿性および発熱保温性に優れた芯鞘型吸湿発熱性複合紡績糸およびこの芯鞘型吸湿発熱性複合紡績糸からなる吸湿性および発熱保温性に優れた生地または衣類に関する。
【０００２】
【従来の技術】
夏季に汗を吸収して快適な着用感を保持するとともに、冬季においては水分を吸収して発熱保温作用を有する繊維およびこれを使用して編織した衣類が好まれつつある。
特開平９−３１７９６号公報には高吸湿性ステープルを含む繊維から芯材が形成され、鞘部が主として疎水性ステープルまたは疎水性フィラメントから構成された芯鞘型吸湿発熱性複合紡績糸を使用した編織物が開示されている。ここでは芯材に含まれる高吸湿性ステープルが吸湿発熱性を有するものも使用されている。しかし、鞘部が主として疎水性繊維から構成されているため、夏期に多量の発汗がある場合に、汗を速やかに吸収することができず、そのため汗の蓄積による不快感が生じるという問題がある。また冬季には表面が積極的に疎水性繊維で構成されているため冬場の乾燥した環境下では静電気が発生しやすいという問題がある。
【０００３】
特開２００１−４０５４７号公報には、公定水分率が１６％以上の吸放湿発熱性繊維と羊毛繊維と疎水性合成繊維を、吸放湿発熱性繊維を重量比で５〜５０％の割合で混合した混合繊維を鞘とし、疎水性合成繊維の長繊維糸または短繊維糸を芯とした芯鞘構造糸を用いた、水分を吸収して発熱するとともに発熱持続時間を長くして長時間快適な着用感を提供する織物および鞘に使用する疎水性合成繊維の代わりにセルロース繊維を使用した芯鞘構造糸を用いた織物が開示されている。ここで用いられる芯鞘構造糸は、芯材に疎水性合成繊維を使用しているため吸水性が劣り、発汗量が多い場合には濡れ戻り現象による濡れ冷え感が発生する等の問題があり、改良の余地がある。
【０００４】
【発明が解決しようとする課題】
本発明は、冬季に発熱保温性に優れ、且つ夏期には汗による不快感が除去されることに加えて、天然繊維の風合いの良さを生かすことにより、季節を問わず快適な着用感を備えた編織物、およびこのような編織物を形成する紡績糸を提供する。
【０００５】
【課題を解決するための手段】
本発明は、公定水分率が１０〜１９重量％で吸湿発熱特性を有する獣毛繊維を芯成分とし、天然セルロース系繊維、再生セルロース系繊維またはそれらのポリエステル系繊維あるいはアクリル系繊維との混紡糸を鞘成分としてなる芯鞘型吸湿発熱性複合紡績糸に関する。
更に本発明は、上記の芯鞘型吸湿発熱性複合紡績糸からなる吸湿性および発熱保温性に優れた生地または衣類に関する。
【０００６】
本発明の芯鞘型吸湿発熱性複合紡績糸は、上記構造を持つことによって次のような特性を備えることができる：
１）冬季に快適な着用感を与える発熱保温性を有する。
特に発熱した芯材が鞘に包まれていることによって発生した熱が良好に保持され、保温性能が持続される。
２）夏季によく汗を吸収することができるため夏季の肌着としても好適である。
３）直接肌に接する鞘部に吸湿性を有する繊維、特に天然の吸湿性繊維である綿を使用するため肌着としての着心地の良さ（風合い）を有する。
４）芯材特に鞘成分が親水性繊維であるため、汗を繊維内部に吸収し、吸湿後の濡れ感や濡れ冷え感がない。
【０００７】
【発明の実施の形態】
本発明の芯鞘型吸湿発熱性複合紡績糸は、公定水分率が１０〜１９重量％で吸湿発熱特性を有する天然獣毛繊維または変性天然繊維の集合体を芯成分としてなり、鞘成分が好ましくは親水性繊維からなる複合繊維である。
本発明では芯材を構成する繊維として、吸湿発熱性を有する天然または変性天然繊維を用いているところに特徴がある。そのため発熱性に加えてたとえば天然繊維である羊毛、綿は他の合成繊維と比較して熱伝導率が低く、熱を奪いにくい特徴が備わっている。加えて、その標準状態での吸湿率が１０〜１９重量％のものを使用するため、１９重量％を越えるような過度の吸湿がなく、そのために接触冷感が小さいという利点がある。
【０００８】
獣毛繊維は本来吸湿発熱性を有するが直接肌に接するとちくちく感があり、混紡品として場合でも肌着としての使用は好まれない。しかし本発明のように獣毛繊維を芯材として使用するとこの欠点が解消され、吸湿発熱性を生かして肌着としても有用となる。また、変性天然繊維（例えば綿を改質した繊維）は、天然繊維と言っても加工により若干風合いが硬くなるため、やはり用途によってはデメリットとなり用途が限定されるが、それを天然繊維で被覆することによって風合いが改良される。
【０００９】
芯成分として使用する吸湿発熱性を有する天然または変性天然繊維としては、獣毛または高吸湿性を付与した綿繊維が好ましい。特に好ましくは汎用性の面を考慮して獣毛繊維の羊毛が適している。
高吸湿性を付与した綿繊維とは、例えば特開平１１−２７９９４３号公報に記載された吸湿性繊維等が使用できる。具体的には、綿繊維１００重量部に対してＮ-メチロール（メタ）アクリルアミド（Ｎ-ＭＡＭ）が０.３〜２.５重量部、−ＣＯＯＸ（Ｘ：Ｈ，ＮＨ４またはアルカリ金属）で示されるカルボキシル基またはアミノ基を有する少なくとも１種の水溶性ビニル重合性化合物が５〜４５重量部化学結合した吸湿発熱性綿繊維が例示できる。このような綿繊維は、例えば、Ｎ-メチロール（メタ）アクリルアミドを含む水溶液を含浸した綿繊維中にてＮ-メチロール（メタ）アクリルアミドを綿繊維のセルロースの水酸基に結合させて綿繊維中にビニル基を導入する第１工程、水溶性重合開始剤および−ＣＯＯＸ（Ｘ：Ｈ，ＮＨ４またはアルカリ金属）で示されるカルボキシル基またはアミノ基を有する少なくとも１種の水溶性ビニル重合性化合物を含む水溶液中に第１工程で得られた繊維を浸漬し、次いで脱水、加熱することによりセルロース中に導入された上記ビニル基を開始点として上記水溶性ビニル重合性化合物を重合する第２工程、および上記水溶性ビニル重合性化合物重合体を付加した綿繊維を高湿度条件下または湿潤状態下に保持したのち水洗および乾燥を行う第３工程からなる方法によって製造することができる。
【００１０】
鞘成分には好ましくは親水性繊維を使用する。親水性成分を用いることによって、適度な水分を有することで冬場の乾燥した環境でも静電気が発生しにくいという利点があり肌への保湿効果も期待できる。夏場に多量の汗をかいた場合でも速やかに汗を吸収してくれるため汗による不快感が生じず、夏用の肌着としても好適に使用できる。
鞘成分として特に好ましい親水性繊維は綿である。綿は適度の吸湿性を有するとともに従来から肌着として愛用されてきた繊維であり、これを直接肌に接する鞘成分の繊維に使用しているため風合いの点で最適である。
鞘成分の好ましい繊維としての綿とは、綿単独だけを意味するものでなく、綿を主成分とする混紡糸をも意味している。綿を主成分とする好ましい混紡糸としては、綿とアクリル、ポリエステル等との混紡糸が例示できる。
鞘成分として使用できる綿以外の親水性繊維としては、麻等の天然セルロース系繊維、レーヨンなどの再生セルロース系繊維、羊毛などの獣毛繊維や絹を挙げることができる。
【００１１】
しかし、本発明の芯鞘型吸湿発熱性複合紡績糸の鞘成分には、好ましくは親水性繊維であるが全量または一部に疎水性繊維を使用することを排除するものではない。疎水性繊維を混合する場合にはそれによって寸法安定性が向上し、または全量使用する場合は特に強力が要求される製品についての強力保持という利点がある。疎水性繊維として使用できる繊維としては、例えばポリエステル系繊維、アクリル系繊維等が挙げられる。
【００１２】
本発明の芯鞘型吸湿発熱性複合紡績糸は、いくつかの方法が可能であり、例えば次のようにして製造することができる。
ひとつの方法としては、芯成分の短繊維と鞘成分の短繊維を別々に供給して混打綿工程、梳綿工程を通過させ、練条工程にて芯成分短繊維を中央、鞘成分短繊維をその両側に配した後に供給・ドラフトし、得られたスライバーを粗紡工程に掛けそのまま紡出して精紡することによって製造することができる。また、別の方法として、芯成分となる短繊維と鞘成分となる短繊維を別々に練条に供給してそれぞれスライバーとなし、粗紡工程にて芯成分短繊維を中央、鞘成分短繊維をその周囲に配した後に供給して製造する方法、または芯成分の短繊維の粗糸と鞘成分の短繊維の粗糸とを１本ずつ供給して、精紡することによって製造することができる。あるいはまた、芯成分短繊維の粗糸を予め精紡し、鞘成分短繊維を精紡するとき芯成分短繊維の紡績糸をフロントローラから供給してもよい。
【００１３】
なお、本発明でいう芯鞘型吸湿発熱性複合紡績糸とは、必ずしも芯成分の繊維と鞘成分の繊維が画然と分離されている必要はなく、鞘部分に芯成分の繊維が一部混合していてもよいし、逆に芯部分に鞘成分の繊維が一部混合していてもよい。芯鞘複合紡績糸の断面において外周部の表面積の少なくとも８０％が鞘成分の繊維で構成されていることが望ましい。
本発明の芯鞘型吸湿発熱性複合紡績糸では、鞘成分短繊維と芯成分短繊維の割合は重量比で９５：５〜５０：５０が好ましく、９０：１０〜７０：３０であることがより好ましい。
【００１４】
上記本発明の芯鞘型吸湿発熱性複合紡績糸は、これを単独または他の繊維と一緒に用いて、織物または編物等の生地に加工することができる。
これらの生地は、その吸湿発熱特性および風合いを生かして、肌着を中心とした衣類として利用できる。肌着以外の用途としてもカジュアルパンツ、デニム、靴下等に好適である。
【００１５】
【実施例】
以下、実施例によって本発明をより詳細に且つ具体的に説明する。
実施例および比較例において、芯鞘型吸湿発熱性複合紡績糸を用いた生地の吸湿発熱特性、生地の着用性能を評価した。評価は以下の方法で行った。
〔評価方法〕
（１）生地の吸湿発熱特性：
試料生地を５×５.５ｃｍに切り、生地が温湿度センサーに完全に覆われる程度の袋を作り、６０℃で乾燥させる。発泡スチロール製の箱に４０〜５０℃の湯を入れ、３０℃、９０％ＲＨ以上の雰囲気を作る。生地を温湿度センサーに被せて、チャック付きビニール袋内のシリカゲルシート上で湿度が２０％ＲＨ以下に調湿すると共に未加工と加工生地の温度がほぼ同じになるまで待つ。発泡スチロール製の箱に４０〜４５℃の湯を入れ作られた３０℃、９０％ＲＨ以上の雰囲気中に調温、調湿された試料を素早く移し、１０秒ごとに１０分間の温度の経時変化を記録する。
【００１６】
（２）生地の着用性能：
芯鞘型吸湿発熱性複合紡績糸と通常の混紡糸とをそれぞれ肌着にして、着用モニター２０人の被験者により、従来の綿１００％の肌着と比較した場合の着用感（主に肌触り）を３段階評価した。
着用性能の評価基準：
○：従来品と同等の着用感である。
△：意識すればちくちく感、又はごわごわ感がある。
×：常にちくちく感、ごわごわ感がある。
【００１７】
実施例 １
芯成分として羊毛繊維（公定水分率１５％）と鞘成分として綿繊維とを、３０：７０（重量比）の割合で用いて、次のようにして１０番手の芯鞘型吸湿発熱性複合紡績糸を作成した。その糸を使用してデニム生地を作成した。
〔芯鞘型吸湿発熱性複合紡績糸の製造〕
鞘成分となる綿を混打綿、梳綿工程を通過させ、芯成分のウールは練条工程にて所定の混率になるように且つ、芯鞘構造となるように綿のスライバーとウールのスライバーを配列し、粗紡工程、精紡工程を経て芯鞘型吸湿発熱性複合紡績糸を得た。
〔織物製造条件〕
経糸：綿１００％の紡績糸 ７番手
緯糸：本実施例の羊毛繊維３０％と綿７０％との芯鞘構造糸 １０番手
織物構造：経密度＝６６本／inch、緯密度＝４５本／inch、３／１左綾
【００１８】
実施例 ２
芯成分として羊毛繊維（公定水分率１５％）と鞘成分としてポリエステル繊維とを３０：７０（重量比）の割合で用いて、実施例１と同様な紡績方法で８番手の芯鞘型吸湿発熱性複合紡績糸を作成した。その糸を使用してデニム生地を作成した。
〔織物製造条件〕
経糸：綿１００％の紡績糸 ７番手
緯糸：本実施例の羊毛繊維３０％とポリエステル７０％との芯鞘構造糸８番手
織物構造：経密度＝６３．５本／inch、緯密度＝４８本／inch、３／１左綾
【００１９】
実施例 ３
芯成分として羊毛繊維（公定水分率１５％）と鞘成分として綿繊維とを１０：９０（重量比）の割合で用いて、実施例１と同様な紡績方法で３０番手の芯鞘型吸湿発熱性複合紡績糸を作成した。その糸を使用して１８ゲージのフライス編みの肌着を作成した。
【００２０】
比較例 １
通常の紡績方法で綿１００％の７番手および１０番手の紡績糸を紡出した。その紡績糸を用いてデニム生地を作成した。
〔織物製造条件〕
経糸：綿１００％の紡績糸 ７番手
緯糸：綿１００％の紡績糸 １０番手
織物構造：経密度＝６６本／inch、緯密度＝４５本／inch、３／１左綾
【００２１】
比較例 ２
通常の紡績工程で紡出したポリエステル１００％の８番手の紡績糸を緯糸に、また綿１００％の７番手の紡績糸を経糸に使用しデニム生地を作成した。
〔織物製造条件〕
経糸：綿１００％の紡績糸 ７番手
緯糸：ポリエステル１００％の紡績糸 ８番手
織物構造：経密度＝６３．５本／inch、緯密度＝４８本／inch、３／１左綾
【００２２】
比較例 ３
通常の紡績工程で紡出した綿／羊毛繊維（公定水分率１５％）＝９０／１０重量％の３０番手の紡績糸を用いて１８ゲージのフライス編みの肌着を作成した。
【００２３】
実施例および比較例で作成した生地の吸湿発熱性試験結果を図１〜図３に示した。
また実施例３で作成した肌着と比較例３で作成した肌着の着用性試験の結果を表１に記載した。
【００２４】
【表１】
【発明の効果】
本発明の芯鞘型吸湿発熱性複合紡績糸は、吸湿によって発熱するため保温性に優れ、冬季の衣類として有用であるとともに、糸の表面は主として綿を初めとする吸湿性繊維が鞘成分として用いられているため、夏季の汗を肌から速やかに吸収除去することに加えて、肌触りのよいため夏の肌着としても最適である。
【図面の簡単な説明】
【図１】 実施例１と比較例１の吸湿発熱特性結果を表すグラフ。
【図２】 実施例２と比較例２の吸湿発熱特性結果を表すグラフ。
【図３】 実施例３と比較例３の吸湿発熱特性結果を表すグラフ。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a core-sheath-type hygroscopic exothermic composite spun yarn excellent in hygroscopicity and heat-and-heat-retaining properties, and to a fabric or garment excellent in hygroscopic and heat-preserving properties comprising the core-sheath-type hygroscopic heat-generating composite spun yarn.
[0002]
[Prior art]
Fibers that absorb sweat and retain a comfortable wearing feeling in the summer and absorb moisture and have a heat-generating and warming action and clothing knitted using the fibers are being favored.
JP-A-9-31796 uses a core-sheath hygroscopic exothermic composite spun yarn in which a core material is formed from fibers containing a highly hygroscopic staple, and a sheath part is mainly composed of hydrophobic staples or hydrophobic filaments. A knitted fabric is disclosed. Here, a highly hygroscopic staple contained in the core material has a hygroscopic exothermic property. However, since the sheath part is mainly composed of hydrophobic fibers, when there is a large amount of sweat in the summer, sweat cannot be absorbed quickly, and there is a problem that discomfort due to accumulation of sweat occurs. . In winter, the surface is composed of hydrophobic fibers actively, and there is a problem that static electricity is likely to occur in a dry environment in winter.
[0003]
JP-A-2001-40547 discloses a moisture absorption / release exothermic fiber, wool fiber and hydrophobic synthetic fiber having an official moisture content of 16% or more, and a ratio of 5-50% by weight of the moisture absorption / release exothermic fiber. Using a core-sheath structure yarn with a mixed fiber mixed in step 1 as a sheath and a hydrophobic synthetic fiber long fiber yarn or short fiber yarn as a core, it absorbs moisture and generates heat and lengthens the heat generation duration for a long time. A fabric using a core-sheath structured yarn using cellulose fibers instead of a hydrophobic synthetic fiber used for a fabric and a sheath providing a comfortable wearing feeling is disclosed. The core-sheath structure yarn used here has poor water absorption due to the use of hydrophobic synthetic fiber as the core material, and there are problems such as a feeling of wetting and cooling due to the rewetting phenomenon when the amount of sweat is large. There is room for improvement.
[0004]
[Problems to be solved by the invention]
The present invention is excellent in heat retention in the winter, and in addition to removing the discomfort due to sweat in the summer, it has a comfortable wearing feeling regardless of the season by taking advantage of the texture of natural fibers. Knitted fabrics and spun yarns forming such knitted fabrics are provided.
[0005]
[Means for Solving the Problems]
The present invention uses an animal hair fiber having an official moisture content of 10 to 19% by weight and a hygroscopic exothermic property as a core component, and a blended yarn of natural cellulose fiber, regenerated cellulose fiber or polyester fiber or acrylic fiber thereof. The present invention relates to a core-sheath hygroscopic exothermic composite spun yarn having a sheath component as a sheath component.
Furthermore, the present invention relates to a fabric or garment excellent in hygroscopicity and heat generation and heat retention, comprising the core-sheath type hygroscopic exothermic composite spun yarn.
[0006]
The core-sheath type hygroscopic exothermic composite spun yarn of the present invention can have the following characteristics by having the above structure:
1) It has heat-retaining properties that give a comfortable wearing feeling in winter.
In particular, the heat generated by the core material that has generated heat being wrapped in the sheath is well maintained, and the heat retaining performance is maintained.
2) Since it can absorb sweat well in summer, it is also suitable for summer underwear.
3) Since a fiber having hygroscopicity, particularly cotton, which is a natural hygroscopic fiber, is used for the sheath part directly in contact with the skin, it has good comfort (texture) as an undergarment.
4) Since the core material, particularly the sheath component, is a hydrophilic fiber, it absorbs sweat inside the fiber and does not feel wet or cool after wetting.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The core-sheath type hygroscopic exothermic composite spun yarn of the present invention comprises an aggregate of natural animal hair fibers or modified natural fibers having an official moisture content of 10 to 19% by weight and a hygroscopic exothermic property as a core component, and a sheath component is preferred. Is a composite fiber made of hydrophilic fibers.
The present invention is characterized in that natural or modified natural fibers having hygroscopic heat generation are used as the fibers constituting the core material. For this reason, in addition to exothermicity, for example, wool and cotton, which are natural fibers, have a low thermal conductivity compared to other synthetic fibers, and are not easily deprived of heat. In addition, since a material having a moisture absorption rate of 10 to 19% by weight in the standard state is used, there is no excessive moisture absorption exceeding 19% by weight, and therefore there is an advantage that a feeling of contact cooling is small.
[0008]
Animal hair fibers are inherently hygroscopic and exothermic but have a tingling sensation when in direct contact with the skin, and are not preferred for use as underwear even as a blended product. However, when animal hair fibers are used as a core material as in the present invention, this drawback is eliminated, and it becomes useful as an underwear by taking advantage of the hygroscopic heat generation. In addition, modified natural fibers (for example, cotton-modified fibers) have a slightly harder texture due to processing even if they are natural fibers. To improve the texture.
[0009]
The natural or modified natural fiber having hygroscopic heat generation used as the core component is preferably animal hair or cotton fiber imparted with high hygroscopicity. Particularly preferably, animal wool fiber wool is suitable in consideration of versatility.
As the cotton fibers imparted with high hygroscopicity, for example, hygroscopic fibers described in JP-A No. 11-279943 can be used. Specifically, N-methylol (meth) acrylamide (N-MAM) is 0.3 to 2.5 parts by weight with respect to 100 parts by weight of cotton fiber, and —COOX (X: H, NH 4 or alkali metal). Examples are hygroscopic exothermic cotton fibers in which 5 to 45 parts by weight of at least one water-soluble vinyl polymerizable compound having a carboxyl group or amino group is chemically bonded. For example, such a cotton fiber is obtained by bonding N-methylol (meth) acrylamide to a cellulose hydroxyl group of cotton fiber in a cotton fiber impregnated with an aqueous solution containing N-methylol (meth) acrylamide, and adding vinyl in the cotton fiber. Aqueous solution comprising a first step of introducing a group, a water-soluble polymerization initiator and at least one water-soluble vinyl polymerizable compound having a carboxyl group or an amino group represented by -COOX (X: H, NH 4 or alkali metal) A second step of polymerizing the water-soluble vinyl polymerizable compound starting from the vinyl group introduced into the cellulose by immersing the fiber obtained in the first step, then dehydrating and heating, and the above The third process in which the cotton fibers to which the water-soluble vinyl polymerizable compound polymer has been added are kept under high humidity conditions or wet conditions, followed by washing and drying. It can be prepared by a process comprising.
[0010]
A hydrophilic fiber is preferably used for the sheath component. By using a hydrophilic component, there is an advantage that static electricity hardly occurs even in a dry environment in winter by having appropriate moisture, and a moisturizing effect on the skin can also be expected. Even when a large amount of sweat is taken in the summer, the sweat is quickly absorbed, so there is no discomfort due to sweat, and it can be suitably used as an underwear for summer.
A particularly preferred hydrophilic fiber as the sheath component is cotton. Cotton is a fiber that has moderate hygroscopicity and has been used habitually as an underwear, and is optimal in terms of texture because it is used as a sheath component fiber that directly contacts the skin.
Cotton as a preferred fiber of the sheath component does not mean only cotton alone, but also means a blended yarn mainly composed of cotton. As a preferred blended yarn mainly composed of cotton, a blended yarn of cotton and acrylic, polyester or the like can be exemplified.
Examples of hydrophilic fibers other than cotton that can be used as a sheath component include natural cellulose fibers such as hemp, regenerated cellulose fibers such as rayon, animal hair fibers such as wool, and silk.
[0011]
However, the sheath component of the core-sheath type hygroscopic exothermic composite spun yarn of the present invention is preferably a hydrophilic fiber, but it does not exclude the use of a hydrophobic fiber in whole or in part. When mixed with hydrophobic fibers, this improves the dimensional stability, or when used in its entirety, has the advantage of maintaining strength for products that require strength especially. Examples of fibers that can be used as the hydrophobic fibers include polyester fibers and acrylic fibers.
[0012]
Several methods are possible for the core-sheath type hygroscopic exothermic composite spun yarn of the present invention. For example, it can be produced as follows.
One method is to supply the short fiber of the core component and the short fiber of the sheath component separately and pass through the blended cotton process and the sooting process. After the fibers are arranged on both sides, the fibers are supplied and drafted, and the obtained sliver is subjected to a roving process and spun as it is to produce it. In addition, as another method, the short fiber as the core component and the short fiber as the sheath component are separately supplied to the kneading strip to form a sliver. It can be manufactured by supplying it after it is placed around it, or by supplying and spinning the short fiber of the core component and the short fiber of the sheath component one by one. . Alternatively, the spun yarn of the core component short fiber may be supplied from the front roller when the core component short fiber roving is spun in advance and the sheath component short fiber is spun.
[0013]
The core-sheath hygroscopic exothermic composite spun yarn referred to in the present invention does not necessarily require that the core component fibers and the sheath component fibers are clearly separated, and the core component fibers are partly in the sheath portion. It may be mixed, or conversely, a part of the sheath component fibers may be mixed in the core portion. In the cross-section of the core-sheath composite spun yarn, it is desirable that at least 80% of the surface area of the outer peripheral portion is composed of sheath component fibers.
In the core-sheath type hygroscopic exothermic composite spun yarn of the present invention, the ratio of the sheath component short fiber to the core component short fiber is preferably 95: 5 to 50:50, and 90:10 to 70:30 in weight ratio. More preferred.
[0014]
The above-described core-sheath hygroscopic exothermic composite spun yarn of the present invention can be processed into a fabric such as a woven fabric or a knitted fabric by using it alone or together with other fibers.
These fabrics can be used as clothing centering on underwear, taking advantage of its moisture absorption heat generation characteristics and texture. It is also suitable for casual pants, denim, socks, etc. for uses other than underwear.
[0015]
【Example】
Hereinafter, the present invention will be described in more detail and specifically by way of examples.
In Examples and Comparative Examples, the hygroscopic heat generation characteristics of fabrics using the core-sheath hygroscopic exothermic composite spun yarn and the wearing performance of the fabrics were evaluated. Evaluation was performed by the following method.
〔Evaluation methods〕
(1) Moisture absorption and heat generation characteristics of fabric:
Cut the sample dough to 5 × 5.5 cm, make a bag so that the dough is completely covered by the temperature and humidity sensor, and dry at 60 ° C. Put 40-50 ° C. hot water in a foamed polystyrene box and create an atmosphere of 30 ° C. and 90% RH or higher. The dough is placed on a temperature / humidity sensor, and the humidity is adjusted to 20% RH or less on the silica gel sheet in the plastic bag with the chuck, and the temperature of the unprocessed and the processed dough is almost equal. A temperature-controlled and humidity-controlled sample is quickly transferred to an atmosphere of 30 ° C and 90% RH or more in which 40 to 45 ° C hot water is placed in a polystyrene foam box, and the temperature changes over 10 minutes every 10 seconds. Record.
[0016]
(2) Fabric wearing performance:
A core-sheath type hygroscopic exothermic composite spun yarn and a normal blended yarn are each used as an underwear, and 20 subjects of wearing monitors give a feeling of wearing (mainly touch) 3 compared with a conventional 100% cotton underwear. Graded.
Evaluation criteria for wearing performance:
○: Wearing feeling equivalent to that of conventional products.
(Triangle | delta): If it is conscious, there will be a tingling sensation or an awkward feeling.
X: There is always a tingling sensation and a terrifying feeling.
[0017]
Example 1
Using wool fiber (official moisture content 15%) as the core component and cotton fiber as the sheath component in a ratio of 30:70 (weight ratio), the 10th core-sheath type hygroscopic exothermic composite spinning as follows Made a thread. Denim fabric was made using the yarn.
[Manufacture of core-sheath hygroscopic exothermic composite spun yarn]
Cotton sliver and wool sliver so that the sheath component cotton is passed through the blended cotton and carding process, and the core component wool has a predetermined blending ratio in the drawing step and the core-sheath structure is obtained. The core-sheath hygroscopic exothermic composite spun yarn was obtained through a roving process and a fine spinning process.
[Textile manufacturing conditions]
Warp yarn: 100% cotton spun yarn 7th weft yarn: core-sheath structured yarn of 30% wool fiber and 70% cotton in this example 10th fabric structure: warp density = 66 / inch, weft density = 45 / inch 3/1 Left Aya 【0018】
Example 2
Using a wool fiber (official moisture content of 15%) as a core component and a polyester fiber as a sheath component in a ratio of 30:70 (weight ratio), the 8th core-sheath type hygroscopic heat generation by the same spinning method as in Example 1 A composite spun yarn was made. Denim fabric was made using the yarn.
[Textile manufacturing conditions]
Warp yarn: 100% cotton spun yarn 7th weft yarn: Core-sheath structured yarn 8th fabric made of 30% wool fiber and 70% polyester in this embodiment Woven fabric structure: warp density = 63.5 / inch, weft density = 48 / Inch, 3/1 left twill [0019]
Example 3
Using a wool fiber (official moisture content of 15%) as a core component and a cotton fiber as a sheath component in a ratio of 10:90 (weight ratio), the core-sheath type hygroscopic heat generation of 30th in the same spinning method as in Example 1 A composite spun yarn was made. The yarn was used to create an 18 gauge milling underwear.
[0020]
Comparative example 1
Seventh and tenth spun yarns of 100% cotton were spun by a normal spinning method. Denim fabric was made using the spun yarn.
[Textile manufacturing conditions]
Warp: 100% cotton spun yarn 7th weft: 100% cotton spun yarn 10th fabric structure: Warp density = 66 / inch, weft density = 45 / inch, 3/1 left twill
Comparative example 2
Denim fabric was made using 100% polyester 8th spun yarn spun in the normal spinning process as weft and 100% cotton 7th spun yarn as warp.
[Textile manufacturing conditions]
Warp: 100% cotton spun yarn 7th weft: 100% polyester spun yarn 8th fabric structure: Warp density = 63.5 / inch, weft density = 48 / inch, 3/1 left twill
Comparative example 3
Cotton / wool fibers spun in a normal spinning process (official moisture content 15%) = 90/10% by weight of 30th spun yarn was used to create an 18 gauge milled underwear.
[0023]
The hygroscopic exothermic test results of the fabrics prepared in the examples and comparative examples are shown in FIGS.
In addition, Table 1 shows the results of the wearability test of the underwear created in Example 3 and the underwear created in Comparative Example 3.
[0024]
[Table 1]
【The invention's effect】
The core-sheath type hygroscopic exothermic composite spun yarn of the present invention is excellent in heat retention because it generates heat due to moisture absorption, and is useful as a winter clothing, and the surface of the yarn is mainly composed of hygroscopic fibers such as cotton as a sheath component. Because it is used, in addition to quickly absorbing and removing summer sweat from the skin, it is also suitable as a summer underwear due to its good touch.
[Brief description of the drawings]
1 is a graph showing results of moisture absorption heat generation characteristics of Example 1 and Comparative Example 1. FIG.
FIG. 2 is a graph showing results of moisture absorption heat generation characteristics of Example 2 and Comparative Example 2.
3 is a graph showing results of moisture absorption heat generation characteristics of Example 3 and Comparative Example 3. FIG.
Claims (5)
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| JP2002095519A JP3889652B2 (en) | 2002-03-29 | 2002-03-29 | Hygroscopic exothermic composite fiber |
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| JP2002095519A JP3889652B2 (en) | 2002-03-29 | 2002-03-29 | Hygroscopic exothermic composite fiber |
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| JP5094338B2 (en) * | 2007-11-06 | 2012-12-12 | 倉敷紡績株式会社 | Artificial feathers and artificial feather products |
| CN102425019A (en) * | 2011-09-27 | 2012-04-25 | 奉化市双盾纺织帆布实业有限公司 | Vortex spinning and blending special yarn of linen, bamboo fiber and modal |
| CN104790107B (en) * | 2015-04-29 | 2016-09-07 | 无锡红豆居家服饰有限公司 | Red bean suede super-soft moisture absorption heating function fabric |
| CN105483888A (en) * | 2015-12-18 | 2016-04-13 | 桐乡市濮院羊毛衫职业技术学校 | Wool and natural fiber blended yarn |
| CN107572626B (en) * | 2017-10-19 | 2020-08-11 | 青岛大学 | Black composite material with hydrophilicity and self-floating performance as well as preparation method and application thereof |
| CN109397794B (en) * | 2018-11-14 | 2024-07-23 | 赵洲坚 | Quick-heating fabric and application thereof, and moisture-absorbing quick-heating insole made of quick-heating fabric |
| CN111469505B (en) * | 2020-03-23 | 2021-05-04 | 东华大学 | Moisture-conducting and quick-drying moisture-absorbing and heating fiber sponge material and preparation method thereof |
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