JP4478860B2

JP4478860B2 - Comfortable lab coat and comfortable preventive garment

Info

Publication number: JP4478860B2
Application number: JP2003190576A
Authority: JP
Inventors: 右広西田
Original assignee: Toyobo Co Ltd
Current assignee: Toyobo Co Ltd
Priority date: 2003-07-02
Filing date: 2003-07-02
Publication date: 2010-06-09
Anticipated expiration: 2023-07-02
Also published as: JP2005023473A

Description

【０００１】
【発明の属する技術分野】
本発明は着用快適性に優れ、取扱性が良好であり、抗菌制菌効果もある主に医療用の白衣及び予防衣に関する。
【０００２】
【従来の技術】
従来から疎水性合成繊維、特にポリエステル系合成繊維、取り分けポリエステルマルチフィラメント仮撚加工糸を用いた白衣、予防衣が各種物性、取扱性、価格等の面から広く使用されており好評を得ている。しかしながらポリエステルを始め、多くの合成繊維は疎水性であり吸湿性能に乏しく着用時の蒸れ感やべとつき感が生じるため、着用快適なものには成り得ていないという現状にある。
【０００３】
疎水性合成繊維に後加工を施し、親水化処理する技術も多数開発されており多数上市されている（例えば、特許文献１など。）。しかしながらいずれも後加工による繊維表面のみの改質であり洗濯耐久性に乏しいという欠点があった。また親水化処理剤と抗菌剤との併用が必要である為、溶液のイオン性や粘度によっては一度に処理できず、工程数が増加する可能性がありコスト的にも高価なものとなる。
【０００４】
また織物組織を経緯二重組織とし表面に偏平断面糸、裏面に芯部にアルカリ易溶性ポリマーを組合わせた芯鞘複合繊維を配し、アルカリ減量処理によって中空部を形成せしめた後、吸汗加工を施す方法が提案されている（例えば、特許文献２参照。）。上記方法によると繊維内及び繊維間空隙による毛細管効果と吸汗加工剤による相乗効果によって水分拡散性に優れ、着用快適性に優れたものとなり、しかも二重組織の効果によって防透性等も期待出来るものとなる。しかしながらアルカリ減量処理による廃液負荷が大きい上に、選択的に強いアルカリアタックを受ける芯鞘複合繊維の強度低下が著しくピリングやスナッグ等の懸念がある他、後加工による表面改質であり耐久性にも乏しい。
【０００５】
また吸湿性ポリマーを複合紡糸法によってサイドバイサイドに組合わせた合成繊維マルチフィラメントを用いた織編物が提案されている（例えば、特許文献３参照。）。吸湿性ポリマーを組合わせて吸湿性を保持するものであるが、界面剥離による白化やフィブリル化、それに伴う繊維強度低下、染着差等によるいらつきが生じやすく外観品位や消費性能面でも問題があった。
【０００６】
【特許文献１】
特開昭６３−２２７８７１号公報（第６頁、実施例１など）
【特許文献２】
特開平８−２３２１３６号公報（請求項１など）
【特許文献３】
特開平１０−７７５４４号公報（請求項３など）
【０００７】
【発明が解決しようとする課題】
本発明は上記問題点を鑑み発明に至ったものであり、その目的とするところは着用快適性及び抗菌性に優れた白衣及び予防衣の提供を課題とするものである。
【０００８】
【課題を解決するための手段】
かかる課題を解決する本発明の快適白衣及び快適予防衣は裏面側、即ち肌側に親水性繊維を配置することによって蒸れ感やべとつき感を解消すると共に親水性繊維を含む糸条の裏面側浮き数を制限することにより耐ピリング性を向上させ、表面に強度的にも優れた疎水性合成繊維を配置することによって耐久性を保持させるものである。また二重組織を採用し医療用白衣及び予防衣で一般的である透けやすい白色や淡色に染色しても肌や下着が透け難いものとする。更に院内感染等の防止策として抗菌剤を後加工によって繊維表面に導入し高い制菌効果を与えるものである。
【０００９】
即ち、本発明は以下の構成よりなる。
１．疎水性合成繊維糸条が主に表面側、親水性繊維を含む糸条が主に裏面側を形成し、
二重織又は多重織の構造組織の交織織物を含んでなる快適白衣であって、
親水性繊維を含む糸条は、アクリレート系繊維を重量比率で５〜５０重量％含む糸条であり、
交織織物は、緯糸又は経糸のいずれか一方において、親水性繊維を含む糸条（Ａ又はＣ）と疎水性合成繊維糸条（Ｂ又はＤ）とが、１本交互の構成単位（Ａ／Ｂ、Ｃ／Ｄ）、あるいはＢ／Ａ／Ｂ又はＤ／Ｃ／Ｄの構成単位となるように配され、親水性繊維を含む糸条の裏面浮き数の最大値が２〜４本で、かつ親水性繊維を含む糸条の表面浮き数が１本であり、さらに繊維製品新機能評価協議会（ＪＡＦＥＴ）標準配合洗剤を使用し、制菌加工繊維製品（特定用途）の試験方法に記載の洗濯方法にて５０回洗濯後の静菌活性値が５．８以上７．０以下であることを特徴とする快適白衣。
２．疎水性合成繊維が艶消剤を２〜３重量％含有するポリエステル系合成繊維であり、
アクリレート系繊維を含む糸条が紡績糸であることを特徴とする上記第１に記載の快適白衣。
３．導電性合成繊維フィラメント又は導電性合成繊維フィラメントを含む複合糸が、織物の経糸及び／又は緯糸の少なくとも一部に使用し、二重織又は多重織の構造組織の裏面側又は中間層に配されてなる上記第１又は第２に記載の快適白衣。
４．アクリレート系繊維がアクリロ二トリルを主たる繰り返し単位とする重合体のニトリル基にヒドラジン系化合物による架橋結合が導入されてなる繊維であることを特徴とする上記第１〜第３のいずれかに記載の快適白衣。
５．第４級アンモニウム塩系、フェノールアミド系、銅化合物系、銀化合物系、ピケアナイド系、ピリドン系、ピリジン系、二トリル系、ハロアルキルチオ系、有機ヨード系、チアゾール系、ベンズイミダゾール系から選択される少なくとも１種類以上の抗菌剤が付与されてなることを特徴とする上記第１〜第４のいずれかに記載の快適白衣。
６．疎水性合成繊維糸条が主に表面側、親水性繊維を含む糸条が主に裏面側を形成し、二重織又は多重織の構造組織の交織織物を含んでなる快適予防衣であって、
親水性繊維を含む糸条は、アクリレート系繊維を重量比率で５〜５０重量％含む糸条であり、
交織織物は、緯糸又は経糸のいずれか一方において、親水性繊維を含む糸条（Ａ又はＣ）と疎水性合成繊維糸条（Ｂ又はＤ）とが、１本交互の構成単位（Ａ／Ｂ、Ｃ／Ｄ）、あるいはＢ／Ａ／Ｂ又はＤ／Ｃ／Ｄの構成単位となるように配され、親水性繊維を含む糸条の裏面浮き数の最大値が２〜４本で、かつ親水性繊維を含む糸条の表面浮き数が１本であり、さらに繊維製品新機能評価協議会（ＪＡＦＥＴ）標準配合洗剤を使用し、制菌加工繊維製品（特定用途）の試験方法に記載の洗濯方法にて５０回洗濯後の静菌活性値が５．８以上７．０以下であることを特徴とする快適予防衣。
７．疎水性合成繊維が艶消剤を２〜３重量％含有するポリエステル系合成繊維であり、アクリレート系繊維を含む糸条が紡績糸であることを特徴とする上記第６に記載の快適予防衣。
８．導電性合成繊維フィラメント又は導電性合成繊維フィラメントを含む複合糸が、織物の経糸及び／又は緯糸の少なくとも一部として、二重織又は多重織の構造組織の裏面側又は中間層に配されてなることを特徴とする上記第６又は第７に記載の快適予防衣。
９．アクリレート系繊維がアクリロ二トリルを主たる繰り返し単位とする重合体のニトリル基にヒドラジン系化合物による架橋結合が導入されてなる繊維であることを特徴とする上記第６〜第８のいずれかに記載の快適予防衣。
１０．第４級アンモニウム塩系、フェノールアミド系、銅化合物系、銀化合物系、ピケアナイド系、ピリドン系、ピリジン系、二トリル系、ハロアルキルチオ系、有機ヨード系、チアゾール系、ベンズイミダゾール系から選択される少なくとも１種類以上の抗菌剤が付与されてなることを特徴とする上記第６〜第９のいずれかに記載の快適予防衣。
【００１０】
【発明の実施の形態】
本発明の快適白衣及び予防衣は疎水性合成繊維糸条及びアクリレート系繊維を含む糸条（以下、単に親水性繊維と表記することがある）を用い二重織又は多重織の構造組織で織成した交織織物からなるものであるが、疎水性合成繊維はポリエステル系合成繊維が耐薬品性や耐熱性、耐擦過性等の諸性能面や価格面で好ましく使用される。糸条の形態は長繊維フラットヤーンや仮撚加工糸、エアー混繊交絡糸の他、長短複合紡績糸や混打綿混紡糸、精紡交撚糸、結束紡績糸や空気交絡紡績糸等の各種革新紡績法を用いて製造された糸条を用いることが可能である。勿論、用途に応じてポリエステル系合成繊維の他、公知の疎水性合成繊維を混繊、混紡して使用することも出来る。またピリングやスナッグ対策として糸条に追撚を施しておくことも好ましい。
【００１１】
ポリエステル系合成繊維はエチレンテレフタレート成分を主たる構成単位とする重合体を公知の溶融紡糸法を用いて生産されるが、必要に応じてイソフタル酸や５‐ナトリウムスルフォイソフタル酸等の共重合体を用いることも出来る。また二酸化チタン、硫酸バリウム、二酸化珪素などの艶消剤や酸化防止剤、帯電防止剤、蛍光増白剤、顔料、抗菌剤等を用途に応じて混合させることも可能である。白衣、予防衣用途の場合は防透性を向上させるため、二酸化チタンや硫酸バリウム等の艶消剤を重合体に対し大略２〜３重量％程度混合することが好ましい。
繊維の断面形状については特に限定するものではないが中実丸断面の他、必要に応じて三角断面や偏平断面、多葉断面その他異型断面、各種中空断面等、公知の断面形状を採用することが可能である。また単繊維繊度についても特に限定を加えるものではないが大略１〜５デシテックス、好ましくは１〜３デシテックスが快適な着用感を得るには有効である。
【００１２】
本発明の快適白衣及び予防衣は裏面側、即ち肌側に親水性繊維を多く配置して吸放湿性その他の機能を発揮させるものであるが、アクリレート系繊維を含む紡績糸であることが望ましい。紡績方法は従来のリング精紡やローター精紡、結束紡績や空気交絡紡績等の革新紡績、或いはそれらを組合わせた長短複合紡績糸など公知の方法を用いることが出来る。また必要に応じて得られた紡績糸と長繊維糸条とを交撚やカバリング等の公知の方法で一体化せしめ耐摩擦特性を向上させることも有効である。断面形状については目的や用途に応じて中実断面、中空断面、その他公知の断面形状を採用することが可能である。
【００１３】
特に紡績糸がアクリレート系繊維を重量比率として５〜５０重量％含有されてなるものが高吸放湿性を付与する上で好ましく、該アクリレート系繊維がアクリロ二トリルを主たる繰り返し単位とする重合体のニトリル基にヒドラジン系化合物による架橋結合導入を施した繊維であることが更に好ましい。アクリレート系繊維はアクリロ二トリル単独重合体（ホモポリマー）或いはアクリロ二トリルと他の単量体との共重合体（コポリマー）のいずれでもよく、他の単量体としてハロゲン化ビニル、ハロゲン化ビニリデン、アクリル酸エステル、メタクリル酸エステル、アクリルアミド、スチレン、酢酸ビニル、メタリルスルフォン酸、パラスチレンスルフォン酸等が例示されるが、アクリロ二トリル単量体と共重合可能な単量体であれば特に限定されない。
【００１４】
ヒドラジン架橋の導入は水加ヒドラジン、硫酸ヒドラジン、塩酸ヒドラジン、臭素酸ヒドラジン、ヒドラジンカーボネート、エチレンジアミン、硫酸グアニジン、リン酸グアニジン、メラミンなどのアミノ基を複数含有する化合物を用いて実施するものであり、窒素含有量の増加が１.０〜１０.０重量％に調整出来る手段である限り採用出来る。ここで窒素含有量の増加とは原料となるアクリレート系繊維の窒素含有量とヒドラジン化合物による架橋が導入されたアクリレート系繊維の窒素含有量の差を示すものであり、ヒドラジン化合物の濃度が５〜６０％、温度５０〜１２０℃条件において５時間以内で架橋反応を完了させることが好ましい。
【００１５】
この窒素含有量の増加が上記の上限（１０.０重量％）を越える場合は高吸放湿性が得づらく、上記の下限（１.０重量％）に満たない場合は最終的に満足し得る物性の繊維を得ることが困難となるため、あまり好ましくない。尚、このヒドラジン系化合物による架橋工程においては、ヒドラジン化合物が加水分解反応により架橋されずに残存した状態の二トリル基を実質的に消失させると共に１.０〜４.５meq／gの塩型カルボキシル基と残部にアミノ基を導入させる方法が好ましく用いられる。その具体的な方法としてはアルカリ金属水酸化物、アンモニアなどの塩基性水溶液、或いは硝酸、硫酸、塩酸などの鉱酸水溶液を含浸させるか、その水溶液中に原料繊維を漬浸した状態で加熱処理するか、或いは上記架橋導入と同時に加水分解反応を起こす方法が挙げられ、残存ニトリル基の加水分解と共にカルボキシル基の塩化を行うこともできる。尚、この加水分解反応が酸による加水分解である場合には、酸による加水分解工程の後、カルボキシル基を塩型に変換しておくことが好ましい。
【００１６】
得られたアクリレート系繊維は高吸放湿性を有するが染色性や力学的強度に乏しい面がある。またアクリレート系繊維以外の親水性繊維についても同様で表面を主に構成する疎水性合成繊維とは染色同色性が得難く、耐摩擦特性や引張強度等の強度面でも不利な点があった。本発明では、主に白色や淡色の染色物とすることが多いので、大きな問題はないものの、染色性について織物組織を改良し生地表面への露出を最低限度に留めて表面の均染性を向上させ、高吸放湿性や吸汗性その他親水性繊維が有する機能を最大限に活かす為に裏側面に多く露出させ、ピリング抑制の為に裏面浮き数の最大値を２〜４本に留めて耐スナッグ特性も向上させた。また該アクリレート系繊維は単独では力学的強度に乏しい為、他繊維と混繊、混紡、交撚等公知の方法で複合することによって糸条自体の強度を保持させることが出来る。
【００１７】
アクリレート系繊維を含む糸条の裏面浮き数の最大値は上記のように２〜４本であることが好ましい。該最大値が２本未満の場合、即ち浮き数が１本の場合は織物裏面への露出程度が小さく留まる為に、高吸放湿性や吸汗性など親水性繊維の機能が十分に発揮されないばかりか織物表面への露出も多くなり表面の同色性が得難く、織物染品位が良くない。また該最大値が４本を超過する範囲ではピリングやスナッグが抑制されず繰り返し着用や洗濯操作による品位低下が著しい。また組織点での拘束が弱いために比較的強度に乏しい親水性繊維が切断、素抜け等により脱落することによって本来持ち得る機能が経時的に損なわれてしまう。親水性繊維を含む糸条は十分に加撚され、親水性繊維の単糸切断や素抜けを抑制することが望ましく、必要に応じて他の長繊維束を用いてカバリング糸として使用することも出来る。
【００１８】
親水性繊維を含む糸条がアクリレート系繊維を含む場合は該アクリレート系繊維の重量比率が５〜５０重量％、より好ましくは１０〜４０重量％の範囲であることが好ましい。該重量比率が５重量％未満の場合は高吸放湿性を有するアクリレート系繊維含量が低率に留まる為、十分な吸放湿性を保持すること困難となる場合があり、あまり好ましくない。又、該重量比率が５０重量％を超過する範囲では力学的強度に乏しいアクリレート系繊維含量が高率になるため、糸条強度が不十分となる場合があり、その場合には製織操業性等の悪化や繰り返し着用や洗濯操作による単繊維切断、素抜け等による脱落が生じやすく作業衣として好ましいものにはならない。
【００１９】
アクリレート系繊維を含む糸条は、アクリレート系繊維の重量比率が５〜５０重量％、より好ましくは１０〜４０重量％の範囲であることが好ましい。該重量比率が５重量％未満の場合は高吸放湿性を有するアクリレート系繊維含量が低率に留まる為、十分な吸放湿性を保持しづらくなるのであまり好ましくない。又、該重量比率が５０重量％を超過する範囲では力学的強度に乏しいアクリレート系繊維含量が高率に成り過ぎ、十分な糸条強度が得られず製織操業性等の悪化や繰り返し着用や洗濯操作による単繊維切断、素抜け等による脱落が生じやすく作業衣として好ましいものにはならない。
【００２０】
特に低湿度に温湿度管理された作業環境においては帯電を防止する必要がある。しかしながら疎水性合成繊維は一般に帯電し易く、後加工による制電加工の他に導電性合成繊維を併用して帯電を防止する方法が一般的である。導電性合成繊維フィラメントを二重織又は多重織の構造組織の裏面側又は中間層に配することによって作業動作等によって生じた静電気を効率的に放電させ、静電気による問題を未然に防ぐことが可能となる。
【００２１】
本発明の快適白衣及び予防衣は第４級アンモニウム塩系、フェノールアミド系、銅化合物系、銀化合物系、ピケアナイド系、ピリドン系、ピリジン系、二トリル系、ハロアルキルチオ系、有機ヨード系、チアゾール系、ベンズイミダゾール系から選択される少なくとも１種類以上の抗菌剤を付与して抗菌性を与えるものである。該抗菌加工は吸尽法、パッドスチーム法、パッドドライ法、スプレー法等々公知の方法によって実施することが出来る。耐久性を考慮すると吸尽法が望ましいが、パッドスチーム法、パッドドライ法等も薬剤コスト、処理コストを考慮すると好ましい選択である。勿論、効果効能を考慮し上記方法を適宜組合わせて処方することも可能である。
【００２２】
また必要に応じて抗菌剤以外に吸汗加工剤、撥水剤、難燃剤等々の後加工機能剤を公知の方法によって処方することが出来る。薬剤の併用に当っては溶液のイオン性や溶液粘度等々を考慮し、同時処理し得るものは同時処理することがコスト的にも好ましいが、液性を考慮し個々に処方する必要がある場合は公知の処方を適宜組合わせ実施することが出来る。パディングによる薬剤付与の場合はパッダー内の薬剤濃度に経時変化が生じないよう、乾燥した生地を処理することが望ましい。
【００２３】
本発明の快適白衣及び予防衣は上記抗菌剤を繊維に付与し抗菌性を与えるものであるが、該抗菌性の指標として５０回洗濯後の静菌活性値が５．８以上７．０以下である。静菌活性値が２．２以上を示すことが抗菌効果の基準（効果の目安）であるとされているが、繰り返し洗濯処理による薬剤脱落、抗菌効果低減を考慮し、本発明では、５．８を下限とする。また該静菌活性値が７．０を超過する範囲は非常に高い制菌、殺菌効果を期待できるものとなるが、コスト的にも高価なものとなる上、人体に有益な菌種まで死滅させてしまう可能性があり好ましいとは言えない。
【００２４】
パディングによる薬剤付与の場合は適当なバインダー樹脂を介して抗菌剤を繊維表面に固着されるが、風合いが粗硬となり易いため、適当な柔軟剤を併用することも可能である。バインダー樹脂は特に限定されるものでなくメラミン系、ウレタン系、酢酸ビニル系、アクリル酸エステル系、ポリエステル系、アクリル系等々公知のものを用いることが出来る。
【００２５】
また製織はエアージェットルーム、レピアルーム、プロジェクタイルルームなど公知の織機を用いて実施することが出来る。本発明の快適作業衣は二重織、多重織の構造組織を採用する為、例えば経二重組織でドビー開口装置を使用する場合は経糸の一部に緩みが生じやすい。該問題を解決する為に複数本のウィーバースビームとドビー開口装置を使用して製織する、若しくは１本のウィーバースビームとジャガード開口装置を使用して製織する、又は複数本のウィーバースビームとジャガード開口装置を使用して製織する、のいずれかの方法を用いることが出来る。
【００２６】
更に染色については公知の方法で実施することが出来るが、異種繊維を用いて製織されている為に複数種の染料、染法を組合わせて実施することが好ましい。特に濃色系統色の場合は表面の同色性を得ることが困難であり、白茶けた外観品位になり易い。とりわけ上記アクリレート系繊維は公知の染料を用いても十分な染着効果が得られ難い為、白茶ける傾向にある。それ故、親水性繊維を含む糸条が表面に露出する接結点をより少なく留め、尚且つピリングやスナッグ対策として裏面の浮き数を可能な限り少なく留めることが重要である。この部分が本発明の最も重要となる点のひとつである。
【００２７】
本発明で言う白衣とは、例えば、病院で医師や看護士などが着用する医療用の白衣が代表例であるが、化学実験時に着用する白衣など社会通念上白衣と呼ばれるものすべてに使用可能である。ワンピース状のものもあれば、上下分かれたものもある。必ずしも真っ白な白衣だけではなく、例えば病院で使用される有色の作業衣など、類似の目的のために着用される有彩色の衣料も該当する。本発明で言う予防衣とは、主に白衣の上などから補助的に着用する介護用エプロンや防護衣などを指しており、白色のものもあれば、有彩色のものもある。生地裁断、縫製に関しては、公知の方法を用いて実施することが出来る。本発明は織物組織の鋭意検討を実施し、裏面組織の耐ピリング性、耐スナッグ性を考慮したものとなっており、一枚もので白衣又は予防衣を作成することも可能であるし、季節や作業環境、縫製パーツ等々の要求項目に応じて裏地や芯地を組合わせて、白衣又は予防衣を得ることも可能である。
【００２８】
【実施例】
以下、実施例により本発明を更に詳しく説明する。尚、本発明は以下の実施例に何ら限定されるものではない。本文及び実施例中の特性値は下記の測定方法によって導出されるものである。また、図１から図１０は組織図を表しており、網掛部は親水性繊維が織物の裏側に浮き出た部分、×印部は経糸が表側に浮き出た部分を示している。
【００２９】
（吸湿率）
下記関係式に従い、吸湿率Ｈを算出した。
Ｈ＝｛（Ｈ1−Ｈ0）／Ｈ0 ｝×１００（％）
ここでＨ0は試料の絶乾重量でありサンプルを１２０℃で３時間乾燥した後の重量である。またＨ1は吸湿重量であり上記乾燥後に所定の温湿度雰囲気下に６時間以上放置して調湿した後の重量である。温湿度雰囲気としては外気に相当する２０±２℃、６５±２％ＲＨの恒温恒湿度条件に設定した。
【００３０】
（ピリング試験）
ＪＩＳＬ１０７６Ａ法（ＩＣＩ形試験機を用いる方法）記載の方法に準じ、ピリング試験を実施した。試料は生地表の経方向、緯方向、及び生地裏の経方向、緯方向をサンプリングし評価に供し、ピリング判定標準写真を用い目視判定を行った。
【００３１】
（スナッグ試験）
ＪＩＳＬ１０５８Ａ法（ＩＣＩ形メース試験機法）記載の方法に準じ、ピリング試験を実施した。試料は生地表の経方向、緯方向、及び生地裏の経方向、緯方向をサンプリングし評価に供し、スナッグ標準写真を用い目視判定を行った。
【００３２】
（抗菌性試験）
ＪＩＳＬ１９０２定量試験（統一試験方法）に準じて評価した。但し洗濯方法は制菌加工繊維製品（特定用途）の試験方法、洗剤は繊維製品新機能評価協議会（ＪＡＦＥＴ）標準配合洗剤を使用し、洗濯５０回後の抗菌性を評価した。試験菌株は肺炎かん菌（klebsiella pneumoniae ATCC 4352）、ＭＲＳＡ（Methicillin resistant Staphylococcus aureus IID 1677）、黄色葡萄状球菌（Staphylococcus aureus ATCC 6538P）の３種を用い、静菌活性値を算出して評価した。
【００３３】
（前記抗菌性試験以外の洗濯試験）
ＪＩＳＬ０２１７１０３法に準じて洗濯試験を実施した。各試料に対して洗濯初期、洗濯２０回、洗濯５０回の３処方にて評価を実施した。
【００３４】
（窒素含有量増加）
窒素含有量増加は、原料繊維の窒素含有量と架橋結合導入処理後の繊維の窒素含有量とを元素分析にて求め、その差から算出した。
【００３５】
（塩型カルボキシル基量）
十分乾燥した加水分解後の繊維約１ｇを精秤し（Ｘｇ）、これに２００ｍｌの水を加えた後、５０℃に加温しながら１ｍｏｌ／ｌ塩酸水溶液を添加してｐＨ２にし、次いで０．１ｍｏｌ／ｌ苛性ソーダ水溶液で常法に従って滴定曲線を求めた。該滴定曲線からカルボキシル基に消費された苛性ソーダ水溶液消費量（Ｙｍｌ）を求め、次式によってカルボキシル基量（ｍｅｑ／ｇ）を算出した。
（カルボキシル基量）＝０．１Ｙ／Ｘ
別途、上述のカルボキシル基量測定操作中の１ｍｏｌ／ｌ塩酸水溶液の添加によるｐＨ２への調整をすることなく同様に滴定曲線を求めＨ型カルボキシル基量（ｍｅｑ／ｇ）を求めた。これらの結果から次式により塩型カルボキシル基量を算出した。
（塩型カルボキシル基量）＝（カルボキシル基量）−（Ｈ型カルボキシル基量）
【００３６】
（実施例１）
ポリエステルフルダル丸断面マルチフィラメントＰＯＹ（部分配向糸）を使用し公知の方法で仮撚施撚方向がＳ→Ｚの条件で延伸仮撚を実施し１６７デシテックス４８フィラメントのポリエステル仮撚加工糸を得た。引き続き、得られた仮撚加工糸をダブルツイスター（村田機械社製ＤＴ−３０８型）を用いてＳ撚方向に３５０回／ｍの追撚を加えた。以下、該撚糸条を疎水性合成繊維糸条Ｘと称する。
【００３７】
導電性合成繊維フィラメント２８デシテックス２フィラメント（クラレ社製商品名クラカーボ（Ｒ））とポリエステルマルチフィラメント仮撚加工糸５６デシテックス３６フィラメントとを同率供給の条件で合撚機（石川製作所社製ＤＴＦ型）を用いてＺ撚方向に４５０回／ｍの加撚を行った。以下、該合撚糸条を導電性合成繊維糸条Ｙと称する。
【００３８】
疎水性合成繊維糸条Ｘと導電性合成繊維糸条Ｙを同一のウィーバースビームに、導電性合成繊維糸条Ｙがストライプ状に配列させてなるように巻取り経糸ビームを得た。該経糸ビームをレピアルーム（津田駒工業社製Ｒ−２００型）に設置し、図１に記載した織物組織を基本組織とし、緯糸としてアクリレート系繊維とポリエステルセミダル丸断面ステープルファイバーの混率が重量比換算で３０：７０のコーマ精紡糸（英式綿番手４０番相当）と疎水性合成繊維Ｘが１本交互の構成になるように製織した。上記コーマ精紡糸の織物裏面浮き数の最大値は４本であり織物裏面に多く露出しており、織物表面には殆ど露出しない形態であった。
【００３９】
尚、上記アクリレート系繊維の製法は以下の様である。アクリロニトリル９６重量％、アクリル酸メチル（以下、ＭＡという）４重量％からなるポリアクリロニトリル系重合体（３０℃ジメチルホルムアミド中での極限粘度［η］：１．２）１０部を４８％のロダンソーダ水溶液９０部に溶解した紡糸原液を、常法に従って紡糸、延伸（全延伸倍率；１０倍）した後、乾球／湿球＝１２０℃／６０℃の雰囲気下で乾燥、湿熱処理して単繊維繊度１．７ｄｔｅｘの原料繊維を得た。該原料繊維に、水加ヒドラジンの２０重量％水溶液中で、９８℃×５Ｈｒ架橋導入処理を行った。本処理により、架橋が導入され、窒素含有量が７．０重量％増加した。次に、苛性ソーダの３重量％水溶液中で、９０℃×２Ｈｒ加水分解処理を行い、純水で洗浄した。この処理により、繊維にＮａ塩型カルボキシル基が５．５ｍｅｑ／ｇ生成していた。該加水分解後の繊維を、ハイドロサルファイトナトリウム塩（以下、ＳＨＳという）の１重量％水溶液中で、９０℃×２Ｈｒ還元処理を行い、純水で洗浄した。続いて、硝酸の３重量％水溶液中、９０℃×２Ｈｒ酸処理を行った。これにより５．５ｍｅｑ／ｇ生成していたＮａ型カルボキシル基は全量がＨ型カルボキシル基になっていた。該酸処理後の繊維を、純水中に投入し、濃度４８％の苛性ソーダ水溶液をＨ型カルボキシル基に対し、Ｎａ中和度７０モル％になる様に添加し、６０℃×３Ｈｒ塩型調整処理を行った。以上の工程を経た繊維を、水洗、油剤付与、脱水、乾燥し高白度吸湿性のアクリレート系繊維2dtex×38mmを得た。
【００４０】
次に得られた織物生機を浴温９０℃のオープンソーパーでプレリラックスを実施した後、浴温１２０℃の液流精練を実施した。その後、乾熱１９０℃条件でピンテンターを用いた中間セットによって幅出し、布目矯正を行った。その後、液流染色機を用い蛍光増白剤併用にて分散染料による１２０℃高圧染色を実施した後、十分な還元洗浄、湯洗、水洗を実施し脱水、乾燥後に乾熱１６０℃の乾熱セットを実施して染色を完了した。
【００４１】
その後、得られた染色生地をパッドドライキュア法によって下記の条件で抗菌加工を実施して仕上げた。５０回洗濯後の静菌活性値は対肺炎かん菌５．８、対ＭＲＳＡ５．８、対黄色葡萄状球菌６．３であり十分な制菌性能を有するものであった。

【００４２】
得られた染色生地を身生地に使用し公知の方法によってワンピースの医療用白衣を縫製した。着用時の蒸れ感やべとつき感が感じられず快適なものとなり、物理的性能も白衣として支障のないものであった。得られた生地の一般物性を表１としてまとめた。
【００４３】
（実施例２）
疎水性合成繊維糸条Ｘを単独に巻き取った経糸ビームと、実施例１と同様のアクリレート系繊維とポリエステルセミダル丸断面ステープルファイバーの混率が重量比換算で３０：７０のコーマ精紡糸（英式綿番手４０番相当）を単独のウィーバースビームに巻き取った経糸ビームを用いダブルビーム方式を採用し図７に記載した織物組織を基本組織として製織した。使用した織機はレピアルーム（津田駒工業社製Ｒ−２００型）であり緯糸には疎水性合成繊維糸条Ｘを単独で使用した。上記コーマ精紡糸の織物裏面最大浮き数は２本であり、織物表面には殆ど露出しない形態であった。
【００４４】
得られた織物生機を実施例１同様の方法で染色加工を実施し染色生地を得た。
５０回洗濯後の静菌活性値は対肺炎かん菌６．０、対ＭＲＳＡ６．０、対黄色葡萄状球菌６．５であり十分な制菌性能を有するものであった。得られた染色生地を身生地に使用し公知の方法によって介護用エプロン状予防衣を縫製した。着用時の蒸れ感やべとつき感が感じられず着用快適性に優れ、物理的性能も問題ないものであった。得られた生地の一般物性を表１としてまとめた。
【００４５】
（比較例１）
実施例１で用いた疎水性合成繊維糸条Ｘ、導電性合成繊維糸条Ｙからなるウィーバースビームを用い、緯糸として疎水性合成繊維Ｘを単独で使用した他は実施例２同様の方法で織物を得た。親水性繊維を使用しないため、親水性繊維を含む糸条の織物裏面浮き数は０本である。５０回洗濯後の静菌活性値は対肺炎かん菌５．８、対ＭＲＳＡ５．９、対黄色葡萄状球菌６．３であり十分な制菌性能を有するものであった。得られた染色生地を身生地に使用し公知の方法によってワンピースの医療用白衣を縫製した。着用時の蒸れ感、べとつき感が感じられ、着用時の快適性が得られなかった。得られた生地の一般物性を表１としてまとめた。
【００４６】
（比較例２）
織物組織を図９に変更した他は実施例２同様の方法で織物を得た。得られた染色生地を身生地に使用し公知の方法によって介護用エプロン状予防衣を縫製した。親水性繊維を有する紡績糸の織物裏面最大浮き数は１本と少なく、裏面の耐ピリング性、耐スナッグ性その他の物理的性能は良好なものとなったが、織物表面への該紡績糸の露出が多いため同色性が得難く、いらつき感のある表面品位となり、商品として好ましいものにはならなかった。５０回洗濯後の静菌活性値は対肺炎かん菌５．８、対ＭＲＳＡ５．８、対黄色葡萄状球菌６．２であり十分な制菌性能を有するものであった。得られた生地の一般物性を表１としてまとめた。
【００４７】
（比較例３）
織物組織を図１０に変更した他は実施例２同様の方法で織物を得た。得られた染色生地を身生地に使用し公知の方法によって介護用エプロン状予防衣を縫製した。親水性繊維を有する紡績糸の織物裏面最大浮き数は８本と多く、織物表面側の表面品位はいらつきが生じず商品として好ましい外観であったが、裏面のピリングやスナッグ等消費性能的に満足なものにはならなかった。５０回洗濯後の静菌活性値は対肺炎かん菌５．９、対ＭＲＳＡ５．９、対黄色葡萄状球菌６．３であり十分な制菌性能を有するものであった。得られた生地の一般物性を表１としてまとめた。
【００４８】
【表１】

【００４９】
【発明の効果】
本発明によれば肌側に吸放湿性繊維を配置することによって蒸れ感やべとつき感を解消すると共に親水性繊維を含む糸条の裏面側浮き数を制限することにより耐ピリング性を向上させ、表面に強度的に優れた疎水性合成繊維を配置することによって耐久性を保持させることが可能となる。またＪＡＦＥＴ基準を満たす抗菌、制菌性能を有しており、着用快適性と実用性を兼ね備えた快適白衣及び快適予防衣を得ることが出来る。
【図面の簡単な説明】
【図１】本発明の快適白衣及び快適予防衣を構成する親水性繊維を含む糸条を緯糸に配した織物の組織図の一例である。網掛部は親水性繊維を含む糸条の組織裏面における浮き部分を示す。
【図２】本発明の快適白衣及び快適予防衣を構成する親水性繊維を含む糸条を緯糸に配した織物の組織図の他の一例である。網掛部は親水性繊維を含む糸条の組織裏面における浮き部分を示す。
【図３】本発明の快適白衣及び快適予防衣を構成する親水性繊維を含む糸条を緯糸に配した織物の組織図の他の一例である。網掛部は親水性繊維を含む糸条の組織裏面における浮き部分を示す。
【図４】本発明の快適白衣及び快適予防衣を構成する親水性繊維を含む糸条を緯糸に配した織物の組織図の他の一例である。網掛部は親水性繊維を含む糸条の組織裏面における浮き部分を示す。
【図５】本発明の快適白衣及び快適予防衣を構成する親水性繊維を含む糸条を緯糸に配した織物の組織図の他の一例である。網掛部は親水性繊維を含む糸条の組織裏面における浮き部分を示す。
【図６】本発明の快適白衣及び快適予防衣を構成する親水性繊維を含む糸条を緯糸に配した織物の組織図の他の一例である。網掛部は親水性繊維を含む糸条の組織裏面における浮き部分を示す。
【図７】本発明の快適白衣及び快適予防衣を構成する親水性繊維を含む糸条を経糸に配した場合の組織図の一例である。網掛部は親水性繊維を含む糸条の組織裏面における浮き部分を示す。
【図８】本発明の快適白衣及び快適予防衣を構成する親水性繊維を含む糸条を経糸に配した場合の組織図の他の一例である。網掛部は親水性繊維を含む糸条の組織裏面における浮き部分を示す。
【図９】比較例２で用いた織組織を示す組織図である。網掛部は親水性繊維を含む糸条の組織裏面における浮き部分である。
【図１０】比較例３で用いた織組織を示す組織図である。網掛部は親水性繊維を含む糸条の組織裏面における浮き部分である。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a white coat and a preventive garment mainly for medical use that have excellent wearing comfort, good handleability, and also have an antibacterial and antibacterial effect.
[0002]
[Prior art]
Conventionally, hydrophobic synthetic fibers, especially polyester-based synthetic fibers, especially white robes and preventive garments using polyester multifilament false twisted yarn, have been widely used in terms of various physical properties, handling properties, price, etc. and have gained popularity. . However, many synthetic fibers, including polyester, are hydrophobic and have poor moisture absorption performance, resulting in a feeling of stuffiness and stickiness when worn, so that they cannot be made comfortable to wear.
[0003]
A number of techniques for subjecting hydrophobic synthetic fibers to post-processing and hydrophilization have been developed and marketed (for example, Patent Document 1). However, all of them have the disadvantage that only the fiber surface is modified by post-processing and the washing durability is poor. Further, since it is necessary to use a hydrophilizing agent and an antibacterial agent in combination, the treatment cannot be performed at a time depending on the ionicity or viscosity of the solution, and the number of steps may be increased, resulting in an increase in cost.
[0004]
In addition, the fabric structure is a double-textured structure with a flat cross-section yarn on the surface and a core-sheath composite fiber combined with an alkali-soluble polymer on the back surface. Has been proposed (see, for example, Patent Document 2). According to the above method, it is excellent in moisture diffusibility due to the capillary effect due to the inter-fiber and inter-fiber voids and the synergistic effect due to the sweat-absorbing agent, and excellent wear comfort, and also the anti-permeability etc. can be expected due to the effect of the double structure. It will be a thing. However, the waste liquid load due to the alkali weight reduction treatment is large, and the core-sheath composite fiber that receives selective strong alkali attack has a significant decrease in strength, and there is a concern about pilling, snag, etc. Is also scarce.
[0005]
Further, a woven or knitted fabric using synthetic fiber multifilaments in which hygroscopic polymers are combined side by side by a composite spinning method has been proposed (for example, see Patent Document 3). Although hygroscopic polymer is combined to maintain hygroscopicity, whitening and fibrillation due to interfacial peeling, fiber strength reduction associated with it, and flickering due to dyeing difference etc. are likely to occur, and there are problems in terms of appearance quality and consumption performance. there were.
[0006]
[Patent Document 1]
JP 63-227871 (page 6, Example 1)
[Patent Document 2]
JP-A-8-232136 (Claim 1 etc.)
[Patent Document 3]
JP-A-10-77544 (Claim 3 etc.)
[0007]
[Problems to be solved by the invention]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a white garment and a preventive garment excellent in wearing comfort and antibacterial properties.
[0008]
[Means for Solving the Problems]
The comfortable white robe and comfortable preventive garment of the present invention that solves such problems eliminates the feeling of stuffiness and stickiness by disposing hydrophilic fibers on the back side, that is, on the skin side, and floats on the back side of the yarn containing the hydrophilic fibers. By limiting the number, pilling resistance is improved, and durability is maintained by disposing hydrophobic synthetic fibers having excellent strength on the surface. In addition, the skin and underwear are difficult to see through even if it is dyed in a transparent white or light color that is common in medical lab coats and preventive garments and employs a double tissue. Furthermore, an antibacterial agent is introduced into the fiber surface by post-processing as a preventive measure for nosocomial infection and the like, and a high bactericidal effect is given.
[0009]
That is, the present invention has the following configuration.
1. Hydrophobic synthetic fiber yarn mainly forms the front side, and the yarn containing hydrophilic fibers mainly forms the back side,
A comfortable lab coat comprising a double woven or multi-woven structure interwoven fabric,
The yarn containing the hydrophilic fiber is a yarn containing 5 to 50% by weight of the acrylate fiber,
In the weaving fabric, either one of the weft or the warp, the yarn (A or C) containing the hydrophilic fiber and the hydrophobic synthetic fiber yarn (B or D) are composed of one alternating structural unit (A / B). C / D), or B / A / B or D / C / D, and the maximum number of floats on the back surface of the yarn containing hydrophilic fibers is 2 to 4, and The number of surface floats of the yarn containing the hydrophilic fiber is 1, Using the laundry method described in the test method for antibacterial processed textile products (specific use) using detergents formulated with the standard for evaluation of new functions of textile products (JAFET) A comfortable lab coat characterized by having a bacteriostatic activity value of 5.8 to 7.0 after washing 50 times.
2. The hydrophobic synthetic fiber is a polyester-based synthetic fiber containing 2-3% by weight of a matting agent,
The comfortable lab coat according to the first aspect, wherein the yarn containing the acrylate fiber is a spun yarn.
3. Conductive synthetic fiber filaments or composite yarns containing conductive synthetic fiber filaments are used for at least part of the warp and / or weft of the fabric and are arranged on the back side or intermediate layer of the double woven or multi-woven structural structure The comfortable lab coat according to the first or second aspect.
4). The acrylate fiber is a fiber obtained by introducing a crosslink with a hydrazine compound into a nitrile group of a polymer having acrylonitrile as a main repeating unit. Comfortable lab coat.
5). Selected from quaternary ammonium salts, phenolamides, copper compounds, silver compounds, picaneides, pyridones, pyridines, nitriles, haloalkylthios, organic iodos, thiazoles, benzimidazoles The comfortable lab coat according to any one of the first to fourth aspects, which is provided with at least one antibacterial agent.
6). A comfort preventive garment comprising a double woven or multi-woven structure woven fabric in which a hydrophobic synthetic fiber yarn mainly forms the front side, and a yarn containing hydrophilic fibers mainly forms the back side. ,
The yarn containing the hydrophilic fiber is a yarn containing 5 to 50% by weight of the acrylate fiber,
In the weaving fabric, either one of the weft or the warp, the yarn (A or C) containing the hydrophilic fiber and the hydrophobic synthetic fiber yarn (B or D) are composed of one alternating structural unit (A / B). C / D), or B / A / B or D / C / D, and the maximum number of floats on the back surface of the yarn containing hydrophilic fibers is 2 to 4, and The number of surface floats of the yarn containing the hydrophilic fiber is 1, Using the laundry method described in the test method for antibacterial processed textile products (specific use) using detergents formulated with the standard for evaluation of new functions of textile products (JAFET) A comfortable preventive garment characterized in that the bacteriostatic activity value after washing 50 times is 5.8 to 7.0.
7). The comfortable preventive garment according to the sixth aspect, wherein the hydrophobic synthetic fiber is a polyester-based synthetic fiber containing 2 to 3% by weight of a matting agent, and the yarn containing the acrylate-based fiber is a spun yarn.
8). Conductive synthetic fiber filaments or composite yarns containing conductive synthetic fiber filaments are arranged on the back side or intermediate layer of a double-woven or multi-woven structural structure as at least part of the warp and / or weft of the fabric The comfort preventive garment according to the sixth or seventh aspect, characterized in that:
9. The acrylate fiber is a fiber obtained by introducing a hydrazine-based crosslinking bond into a nitrile group of a polymer having acrylonitrile as the main repeating unit. Comfort preventive clothing.
10. Selected from quaternary ammonium salts, phenolamides, copper compounds, silver compounds, picaneides, pyridones, pyridines, nitriles, haloalkylthios, organic iodos, thiazoles, benzimidazoles 10. The comfortable preventive garment according to any one of the sixth to ninth aspects, which is provided with at least one antibacterial agent.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The comfortable lab coat and preventive garment of the present invention are hydrophobic synthetic fibers Yarn as well as Acrylate type fiber Containing yarn (hereinafter sometimes simply referred to as hydrophilic fiber) It is made of a woven fabric woven with a double woven or multiple woven structure using a hydrophobic synthetic fiber. Polyester synthetic fiber is a synthetic synthetic fiber that has various performance aspects such as chemical resistance, heat resistance, and abrasion resistance, and price. It is preferably used in terms of surface. There are various types of yarns such as long fiber flat yarn, false twisted yarn, air mixed fiber entangled yarn, long and short composite spun yarn, blended cotton mixed spun yarn, fine spun spun yarn, bundle spun yarn and air entangled spun yarn It is possible to use yarns produced using the innovative spinning method. Of course, in addition to polyester-based synthetic fibers, known hydrophobic synthetic fibers can also be mixed and spun for use. It is also preferable to add twist to the yarn to prevent pilling and snag.
[0011]
Polyester-based synthetic fibers are produced by using a known melt-spinning method with a polymer having an ethylene terephthalate component as the main structural unit. If necessary, a copolymer such as isophthalic acid or 5-sodium sulfoisophthalic acid may be used. It can also be used. Further, matting agents such as titanium dioxide, barium sulfate, and silicon dioxide, antioxidants, antistatic agents, fluorescent whitening agents, pigments, antibacterial agents, and the like can be mixed depending on the application. In the case of white coats and preventive clothes, matting agents such as titanium dioxide and barium sulfate are preferably mixed with the polymer in an amount of about 2 to 3% by weight in order to improve the permeability.
The cross-sectional shape of the fiber is not particularly limited, but in addition to the solid round cross section, a known cross-sectional shape such as a triangular cross section, a flat cross section, a multi-leaf cross section, other atypical cross sections, various hollow cross sections, etc. may be adopted as necessary. Is possible. Further, the single fiber fineness is not particularly limited, but approximately 1 to 5 dtex, preferably 1 to 3 dtex is effective for obtaining a comfortable wearing feeling.
[0012]
The comfortable white robe and the preventive garment of the present invention are arranged to provide a large amount of hydrophilic fibers on the back side, that is, on the skin side, to exhibit moisture absorption / release properties and other functions. Acrylate system Fiber Stay It is desirable that the yarn contains. As the spinning method, a known method such as conventional ring spinning, rotor spinning, bundling spinning, air-entangled spinning, etc., or a combination of long and short composite spun yarns can be used. It is also effective to improve the anti-friction property by integrating the spun yarn and the long fiber yarn obtained as necessary by a known method such as twisting or covering. As for the cross-sectional shape, a solid cross-section, a hollow cross-section, and other known cross-sectional shapes can be adopted depending on the purpose and application.
[0013]
Special Spinning A nitrile of a polymer whose acrylate fiber is mainly composed of acrylonitrile is a repeating unit containing 5 to 50% by weight of acrylate fiber as a weight ratio is preferable for imparting high moisture absorption and desorption. It is more preferable that the fiber has a group introduced with a crosslink bond by a hydrazine compound. The acrylate fiber may be either an acrylonitrile homopolymer (homopolymer) or a copolymer of acrylonitrile and other monomers (copolymer). Other monomers include vinyl halides and vinylidene halides. Acrylic acid ester, methacrylic acid ester, acrylamide, styrene, vinyl acetate, methallyl sulfonic acid, para styrene sulfonic acid, etc. are exemplified, but particularly if it is a monomer copolymerizable with acrylonitrile monomer. It is not limited.
[0014]
The introduction of hydrazine bridge is carried out using a compound containing a plurality of amino groups such as hydrazine hydrate, hydrazine sulfate, hydrazine hydrochloride, hydrazine bromate, hydrazine carbonate, ethylenediamine, guanidine sulfate, guanidine phosphate, melamine, It can be employed as long as the increase in nitrogen content is a means that can be adjusted to 1.0 to 10.0% by weight. Here, the increase in the nitrogen content indicates the difference between the nitrogen content of the acrylate fiber used as a raw material and the nitrogen content of the acrylate fiber introduced with crosslinking by the hydrazine compound, and the concentration of the hydrazine compound is 5 to 5. It is preferable to complete the crosslinking reaction within 5 hours under the conditions of 60% and temperature of 50 to 120 ° C.
[0015]
When the increase in the nitrogen content exceeds the above upper limit (10.0% by weight), it is difficult to obtain high moisture absorption and release, and when it does not reach the above lower limit (1.0% by weight), it can be finally satisfied. Since it becomes difficult to obtain a fiber having physical properties, it is not preferable. In the crosslinking step with this hydrazine compound, the hydrazine compound substantially eliminates the nitrile group remaining without being crosslinked by the hydrolysis reaction, and the salt type carboxyl of 1.0 to 4.5 meq / g. A method of introducing an amino group into the group and the balance is preferably used. Specific methods include impregnating a basic aqueous solution such as alkali metal hydroxide and ammonia, or a mineral acid aqueous solution such as nitric acid, sulfuric acid and hydrochloric acid, or heat treatment in a state in which the raw fiber is immersed in the aqueous solution. Alternatively, there is a method of causing a hydrolysis reaction simultaneously with the introduction of the above-mentioned cross-linking, and the carboxyl group can be salified together with the hydrolysis of the residual nitrile group. In addition, when this hydrolysis reaction is hydrolysis with an acid, it is preferable to convert a carboxyl group into a salt form after the hydrolysis step with an acid.
[0016]
The obtained acrylate fiber has high moisture absorption and desorption properties, but has poor dyeability and mechanical strength. The same applies to hydrophilic fibers other than acrylate fibers, and it is difficult to obtain the same dyeing color as hydrophobic synthetic fibers mainly composed of the surface, and there are disadvantages in terms of strength such as friction resistance and tensile strength. In the present invention, since it is often a white or light-colored dyeing, there is no major problem, but the fabric structure is improved with respect to the dyeability, and the level of the surface is leveled by keeping the exposure to the fabric surface to a minimum. In order to improve and fully utilize the functions of high moisture absorption and desorption, sweat absorption and other hydrophilic fibers, the back side is exposed a lot, and the maximum number of floats on the back side is set to 2 to suppress pilling. 4 Snag resistance was improved by keeping it in the book. Since the acrylate fiber alone has poor mechanical strength, the strength of the yarn itself can be maintained by combining with other fibers by a known method such as blending, blending, and twisting.
[0017]
Acrylate type The maximum value of the number of floats on the back side of the yarn containing the fiber is 2 to 2 as described above. 4 A book is preferred. When the maximum value is less than 2, that is, when the number of floats is 1, the degree of exposure to the back of the fabric remains small, so that the functions of hydrophilic fibers such as high moisture absorption and sweat absorption are not sufficiently exhibited. However, the exposure to the surface of the fabric increases, making it difficult to obtain the same color on the surface and the quality of the fabric is not good. The maximum value is 4 In the range exceeding the book, pilling and snag are not suppressed, and the deterioration of quality due to repeated wearing and washing operations is remarkable. In addition, since the restraint at the tissue point is weak, the hydrophilic fiber having a relatively low strength is lost due to cutting, unplugging, etc., and the inherent function can be lost over time. It is desirable that the yarn containing the hydrophilic fiber is sufficiently twisted, and it is desirable to suppress the single yarn breakage and the unplugging of the hydrophilic fiber, and it can be used as a covering yarn using other long fiber bundles as necessary. I can do it.
[0018]
When the yarn containing hydrophilic fibers contains acrylate fibers, the weight ratio of the acrylate fibers is preferably 5 to 50% by weight, more preferably 10 to 40% by weight. When the weight ratio is less than 5% by weight, the content of the acrylate fiber having high moisture absorption / release properties remains low, and it may be difficult to maintain sufficient moisture absorption / release properties, which is not preferable. In addition, when the weight ratio exceeds 50% by weight, the acrylate fiber content with poor mechanical strength becomes high, so that the yarn strength may be insufficient. In that case, weaving operability, etc. It is not preferable as a work clothes because it is likely to drop off due to deterioration, deterioration of repeated wear or single fiber cutting due to washing operations, and unplugging.
[0019]
Yarns containing acrylate fibers are The weight ratio of the acrylate fiber is preferably in the range of 5 to 50% by weight, more preferably 10 to 40% by weight. When the weight ratio is less than 5% by weight, the content of the acrylate fiber having high moisture absorption / release properties remains at a low rate, so that it is difficult to maintain sufficient moisture absorption / release properties, which is not preferable. In addition, if the weight ratio exceeds 50% by weight, the content of acrylate fibers having poor mechanical strength becomes too high, and sufficient yarn strength cannot be obtained, resulting in deterioration of weaving operability, repeated wearing and washing. It is not preferable as a work clothes because it is easy to drop due to single fiber cutting or unplugging due to operation.
[0020]
In particular, it is necessary to prevent charging in a working environment where temperature and humidity are controlled at low humidity. However, hydrophobic synthetic fibers are generally easy to be charged, and a method of preventing charging by using conductive synthetic fibers in addition to antistatic processing by post-processing is common. By disposing conductive synthetic fiber filaments on the back side or intermediate layer of double-woven or multi-woven structural structures, it is possible to efficiently discharge static electricity generated by work operations and prevent problems due to static electricity. It becomes.
[0021]
The comfortable white coat and preventive garment of the present invention are quaternary ammonium salt type, phenolamide type, copper compound type, silver compound type, picanide type, pyridone type, pyridine type, nitrile type, haloalkylthio type, organic iodine type, thiazole. At least one antibacterial agent selected from a benzimidazole type and an antibacterial property is imparted. The antibacterial processing can be performed by a known method such as an exhaust method, a pad steam method, a pad dry method, or a spray method. The exhaust method is desirable in view of durability, but the pad steam method, the pad dry method, and the like are also preferable choices in consideration of the chemical cost and the processing cost. Of course, it is also possible to prescribe a combination of the above methods in consideration of the effect and efficacy.
[0022]
In addition to antibacterial agents, post-processing functional agents such as sweat absorbing agents, water repellents, flame retardants and the like can be formulated by known methods as needed. In combination with drugs, considering the ionicity of the solution, solution viscosity, etc., those that can be processed simultaneously are preferable in terms of cost, but it is necessary to prescribe individually considering the liquidity Can be carried out by appropriately combining known formulations. In the case of drug application by padding, it is desirable to treat the dried dough so that the drug concentration in the padder does not change with time.
[0023]
The comfortable lab coat and preventive garment of the present invention impart antibacterial properties by imparting the above antibacterial agent to fibers, and the bacteriostatic activity value after 50 washings is used as the antibacterial index. 5.8 Above 7.0 The It is said that the bacteriostatic activity value is 2.2 or more is the standard of antibacterial effect (a measure of effect), but considers drug dropout and antibacterial effect reduction by repeated washing treatment In the present invention, 5.8 is set as the lower limit. In addition, the range where the bacteriostatic activity value exceeds 7.0 can be expected to have a very high bactericidal and bactericidal effect, but it is also expensive in terms of cost and kills even fungus species beneficial to the human body. This is not preferable because there is a possibility of causing it to occur.
[0024]
In the case of chemical application by padding, the antibacterial agent is fixed to the fiber surface via an appropriate binder resin, but since the texture tends to be coarse, an appropriate softening agent can be used in combination. The binder resin is not particularly limited, and known resins such as melamine type, urethane type, vinyl acetate type, acrylic ester type, polyester type and acrylic type can be used.
[0025]
Weaving can be performed using a known loom such as an air jet loom, a rapier room, or a projector room. Since the comfortable work garment of the present invention employs a double woven or multiple woven structure, for example, when the dobby opening device is used in a warp double structure, a part of the warp tends to loosen. Weaving using multiple weaver beams and dobby opening devices to solve the problem, or weaving using one weaver beam and jacquard opening device, or using multiple weaver beams Any method of weaving using a jacquard opening device can be used.
[0026]
Further, the dyeing can be carried out by a known method, but it is preferably carried out by combining a plurality of types of dyes and dyeing methods because they are woven using different fibers. In particular, in the case of a deep color system color, it is difficult to obtain the same color of the surface, and the appearance quality is easily faded. In particular, the above acrylate fibers tend to have whitening because it is difficult to obtain a sufficient dyeing effect even when a known dye is used. Therefore, it is important to keep the number of connection points where the yarn containing the hydrophilic fiber is exposed on the surface as much as possible and to keep the number of floats on the back surface as small as possible as a measure against pilling and snag. This is one of the most important points of the present invention.
[0027]
The lab coats used in the present invention are, for example, medical lab coats worn by doctors and nurses in hospitals, but can be used for all things that are commonly called lab coats, such as lab coats worn during chemical experiments. is there. Some are in one piece, others are in the top and bottom. Not only a pure white robe, but also chromatic garments worn for similar purposes, such as colored work clothes used in hospitals, for example. The preventive clothing referred to in the present invention mainly refers to a nursing apron, protective clothing, or the like that is worn supplementarily from the top of a white robe, and there are white and chromatic ones. The fabric cutting and sewing can be performed using a known method. The present invention has been conducted in earnest examination of the fabric structure, considering the pilling resistance and snag resistance of the back surface structure, it is also possible to create a white coat or preventive clothes with a single piece, It is also possible to obtain a white robe or preventive garment by combining the lining and interlining according to required items such as the working environment, sewing parts, and the like.
[0028]
【Example】
Hereinafter, the present invention will be described in more detail with reference to examples. The present invention is not limited to the following examples. The characteristic values in the text and examples are derived by the following measuring method. FIGS. 1 to 10 show structure diagrams, where the shaded portion indicates the portion where the hydrophilic fibers are raised on the back side of the fabric, and the x mark indicates the portion where the warp is raised on the front side.
[0029]
(Hygroscopic rate)
The moisture absorption H was calculated according to the following relational expression.
H = {(H1-H0) / H0} × 100 (%)
Here, H0 is the absolute dry weight of the sample, and is the weight after drying the sample at 120 ° C. for 3 hours. Further, H1 is a moisture absorption weight, which is a weight after conditioning after being dried and left in a predetermined temperature and humidity atmosphere for 6 hours or more. The temperature and humidity atmosphere was set to constant temperature and humidity conditions of 20 ± 2 ° C. and 65 ± 2% RH corresponding to the outside air.
[0030]
(Pilling test)
A pilling test was performed according to the method described in JIS L1076 A method (method using an ICI type tester). The samples were sampled for the warp direction and the weft direction of the fabric surface, and the warp direction and the weft direction of the back of the fabric and used for evaluation, and visually judged using a pilling judgment standard photograph.
[0031]
(Snugg test)
A pilling test was carried out in accordance with the method described in JIS L1058 A method (ICI type mace tester method). Samples were sampled for the warp direction and the weft direction of the fabric surface, and the warp direction and the weft direction of the back of the fabric for evaluation, and visually judged using a snag standard photograph.
[0032]
(Antimicrobial test)
Evaluation was made according to JIS L1902 quantitative test (unified test method). However, the washing method was a test method for antimicrobial processed fiber products (specific use), and the detergent used was a fiber product new function evaluation council (JAFET) standard detergent. Three test strains, Klebsiella pneumoniae ATCC 4352, MRSA (Methicillin resistant Staphylococcus aureus IID 1677), and Staphylococcus aureus ATCC 6538P, were used to calculate and evaluate bacteriostatic activity values.
[0033]
(Laundry test other than antibacterial test)
A washing test was carried out in accordance with JIS L0217 103 method. Each sample was evaluated in three prescriptions: initial washing, 20 washings, and 50 washings.
[0034]
(Increased nitrogen content)
The increase in the nitrogen content was calculated from the difference between the nitrogen content of the raw fiber and the nitrogen content of the fiber after the cross-linking introduction treatment by elemental analysis.
[0035]
(Salt-type carboxyl group content)
About 1 g of the sufficiently dried fiber after hydrolysis was precisely weighed (Xg), 200 ml of water was added thereto, 1 mol / l aqueous hydrochloric acid solution was added to pH 2 while heating to 50 ° C., and then 0. A titration curve was obtained with a 1 mol / l aqueous sodium hydroxide solution according to a conventional method. From the titration curve, the consumption amount of the aqueous sodium hydroxide solution (Yml) consumed by the carboxyl groups was determined, and the carboxyl group amount (meq / g) was calculated by the following formula.
(Amount of carboxyl group) = 0.1 Y / X
Separately, a titration curve was similarly obtained without adjusting to pH 2 by adding a 1 mol / l hydrochloric acid aqueous solution during the above-described carboxyl group content measurement operation, and the amount of H-type carboxyl groups (meq / g) was determined. From these results, the salt-type carboxyl group amount was calculated by the following formula.
(Amount of salt-type carboxyl group) = (Amount of carboxyl group) − (Amount of H-type carboxyl group)
[0036]
Example 1
Using a polyester filament round cross-section multifilament POY (partially oriented yarn), a false false twist was carried out by a known method under the condition of false twisting direction of S → Z to obtain a polyester false twisted yarn of 167 dtex 48 filament. . Subsequently, the obtained false twisted yarn was subjected to an additional twist of 350 times / m in the S twist direction using a double twister (DT-308 type manufactured by Murata Machinery Co., Ltd.). Hereinafter, the twisted yarn is referred to as a hydrophobic synthetic fiber yarn X.
[0037]
Conductive synthetic fiber filament 28 decitex 2 filament (Kuraray Co., Ltd., trade name Krabobo (R)) and polyester multifilament false twisted yarn 56 decitex 36 filaments are fed at the same rate (1TF type manufactured by Ishikawa Seisakusho Co., Ltd.) Was twisted 450 times / m in the Z twist direction. Hereinafter, the twisted yarn is referred to as conductive synthetic fiber yarn Y.
[0038]
A wound warp beam was obtained so that the hydrophobic synthetic fiber yarn X and the conductive synthetic fiber yarn Y were arranged in the same weaver beam and the conductive synthetic fiber yarn Y was arranged in a stripe shape. The warp beam is installed in a rapier room (R-200 type, manufactured by Tsudakoma Kogyo Co., Ltd.). The woven fabric shown in FIG. Weaving was performed so that the combed spun yarn corresponding to 30:70 (equivalent to British cotton count 40) and the hydrophobic synthetic fiber X were alternately arranged. The maximum value of the number of floats on the back side of the fabric of the combed spinning was 4, which was exposed on the back side of the fabric, and was hardly exposed on the surface of the fabric.
[0039]
In addition, the manufacturing method of the said acrylate fiber is as follows. 10 parts of a polyacrylonitrile polymer (intrinsic viscosity [η]: 1.2 in dimethylformamide at 30 ° C.) consisting of 96% by weight of acrylonitrile and 4% by weight of methyl acrylate (hereinafter referred to as MA) is a 48% rhodasoda aqueous solution. Spinning stock solution dissolved in 90 parts was spun and stretched according to a conventional method (total draw ratio: 10 times), then dried and wet heat treated in an atmosphere of dry bulb / wet bulb = 120 ° C./60° C. to obtain single fiber fineness A raw material fiber of 1.7 dtex was obtained. The raw fiber was subjected to 98 ° C. × 5 Hr cross-linking introduction treatment in a 20 wt% aqueous solution of hydrazine hydrate. This treatment introduced cross-linking and increased the nitrogen content by 7.0% by weight. Next, it was hydrolyzed at 90 ° C. × 2 Hr in a 3 wt% aqueous solution of caustic soda and washed with pure water. By this treatment, 5.5 meq / g of Na salt type carboxyl group was generated in the fiber. The hydrolyzed fiber was subjected to 90 ° C. × 2 Hr reduction treatment in a 1 wt% aqueous solution of hydrosulfite sodium salt (hereinafter referred to as SHS) and washed with pure water. Subsequently, a 90 ° C. × 2 Hr acid treatment was performed in a 3% by weight aqueous solution of nitric acid. As a result, the total amount of Na-type carboxyl groups produced at 5.5 meq / g was H-type carboxyl groups. The acid-treated fiber is poured into pure water, and a 48% concentration aqueous caustic soda solution is added so as to have a Na neutralization degree of 70 mol% with respect to the H-type carboxyl group. Processed. The fibers after the above steps were washed with water, applied with an oil agent, dehydrated, and dried to obtain a high whiteness hygroscopic acrylate fiber 2 dtex × 38 mm.
[0040]
Next, after pre-relaxing the obtained fabric raw machine with an open soaper with a bath temperature of 90 ° C., liquid flow scouring with a bath temperature of 120 ° C. was performed. Thereafter, the sheet was widened by an intermediate set using a pin tenter under dry heat conditions of 190 ° C., and the texture was corrected. Then, after carrying out 120 ° C high-pressure dyeing with a disperse dye in combination with a fluorescent whitening agent using a liquid dyeing machine, sufficient reduction washing, hot water washing and water washing are carried out, followed by dehydration and drying, followed by dry heat at 160 ° C. The set was performed to complete the staining.
[0041]
Thereafter, the dyed fabric obtained was finished by performing antibacterial processing under the following conditions by a pad dry cure method. The bacteriostatic activity value after washing 50 times was 5.8 against pneumoniae, 5.8 against MRSA, and 6.3 against yellow staphylococci and had sufficient antibacterial performance.

[0042]
The obtained dyed fabric was used as a body fabric, and a one-piece medical lab coat was sewn by a known method. The feeling of stuffiness and stickiness when worn was not felt, and the physical performance was satisfactory as a white coat. The general physical properties of the obtained dough are summarized in Table 1.
[0043]
(Example 2)
Coma spinning yarn with a mixing ratio of 30:70 in terms of weight ratio of the warp beam obtained by winding the hydrophobic synthetic fiber yarn X alone and the same acrylate fiber and polyester semi-dal round section staple fiber as in Example 1 A double beam system was employed using a warp beam wound around a single weaver beam, and the fabric structure shown in FIG. 7 was woven as a basic structure. The loom used was a rapier room (R-200 type, manufactured by Tsudakoma Kogyo Co., Ltd.), and the hydrophobic synthetic fiber yarn X was used alone as the weft. The comb-spun yarn had a maximum number of floats on the back of the fabric of 2 and was in a form that was hardly exposed on the surface of the fabric.
[0044]
The obtained woven fabric machine was dyed by the same method as in Example 1 to obtain a dyed fabric.
The bacteriostatic activity values after washing 50 times were 6.0 against Klebsiella pneumoniae, 6.0 against MRSA, and 6.5 against Staphylococcus aureus and had sufficient antibacterial performance. The obtained dyed fabric was used as a body fabric, and an apron-like preventive garment for nursing care was sewn by a known method. There was no feeling of stuffiness or stickiness when worn, and the wear comfort was excellent, and the physical performance was satisfactory. The general physical properties of the obtained dough are summarized in Table 1.
[0045]
(Comparative Example 1)
The same method as in Example 2 except that the weave beam composed of the hydrophobic synthetic fiber yarn X and the conductive synthetic fiber yarn Y used in Example 1 was used, and the hydrophobic synthetic fiber X was used alone as the weft. A woven fabric was obtained. Since hydrophilic fibers are not used, the number of floats on the back side of the woven fabric containing the hydrophilic fibers is zero. The bacteriostatic activity values after washing 50 times were 5.8 against pneumoniae, 5.9 against MRSA, and 6.3 against Staphylococcus aureus and had sufficient antibacterial performance. The obtained dyed fabric was used as a body fabric, and a one-piece medical lab coat was sewn by a known method. A feeling of stuffiness and stickiness when worn was felt, and comfort when worn was not obtained. The general physical properties of the obtained dough are summarized in Table 1.
[0046]
(Comparative Example 2)
A woven fabric was obtained in the same manner as in Example 2 except that the woven fabric structure was changed to FIG. The obtained dyed fabric was used as a body fabric, and an apron-like preventive garment for nursing care was sewn by a known method. The maximum number of floats on the back side of the fabric of the spun yarn having hydrophilic fibers is as small as one, and the physical properties such as pilling resistance, snag resistance and other properties on the back surface are good. Due to the large amount of exposure, it was difficult to obtain the same color, and the surface quality was irritated, which was not preferable as a product. The bacteriostatic activity values after washing 50 times were 5.8 against pneumoniae, 5.8 against MRSA, and 6.2 against Staphylococcus aureus and had sufficient antibacterial performance. The general physical properties of the obtained dough are summarized in Table 1.
[0047]
(Comparative Example 3)
A woven fabric was obtained in the same manner as in Example 2 except that the woven fabric structure was changed to FIG. The obtained dyed fabric was used as a body fabric, and an apron-like preventive garment for nursing care was sewn by a known method. The maximum number of floats on the back side of fabrics with spun yarns with hydrophilic fibers is as high as 8 and the surface quality on the fabric side is not fluctuating and is a good appearance as a product, but the back side pilling and snags are satisfactory in terms of consumption performance It didn't become a good thing. The bacteriostatic activity values after washing 50 times were P. pneumoniae 5.9, MRSA 5.9, and S. aureus 6.3 and had sufficient antibacterial performance. The general physical properties of the obtained dough are summarized in Table 1.
[0048]
[Table 1]

[0049]
【The invention's effect】
According to the present invention, the moisture absorption and release fibers are arranged on the skin side to eliminate the feeling of stuffiness and stickiness and to improve the pilling resistance by limiting the number of floats on the back side of the yarn containing hydrophilic fibers, Durability can be maintained by disposing hydrophobic synthetic fibers excellent in strength on the surface. In addition, it has antibacterial and antibacterial performance that satisfies the JAFET standard, and it is possible to obtain a comfortable white robe and a comfortable preventive garment having both wearing comfort and practicality.
[Brief description of the drawings]
FIG. 1 Comfort of the present invention White coat and comfort prevention It is an example of the organization chart of the textile fabric which arranged the yarn containing the hydrophilic fiber which constitutes clothes on the weft. The shaded portion indicates a floating portion on the back of the structure of the yarn including the hydrophilic fiber.
FIG. 2 Comfort of the present invention White coat and comfort prevention It is another example of the structure | tissue chart of the textile fabric which arranged the thread | yarn containing the hydrophilic fiber which comprises clothing on the weft. The shaded portion indicates a floating portion on the back of the structure of the yarn including the hydrophilic fiber.
FIG. 3 Comfort of the present invention White coat and comfort prevention It is another example of the structure | tissue chart of the textile fabric which arranged the thread | yarn containing the hydrophilic fiber which comprises clothing on the weft. The shaded portion indicates a floating portion on the back of the structure of the yarn including the hydrophilic fiber.
FIG. 4 Comfort of the present invention White coat and comfort prevention It is another example of the structure | tissue chart of the textile fabric which arranged the thread | yarn containing the hydrophilic fiber which comprises clothing on the weft. The shaded portion indicates a floating portion on the back of the structure of the yarn including the hydrophilic fiber.
FIG. 5: Comfort of the present invention White coat and comfort prevention It is another example of the structure | tissue chart of the textile fabric which arranged the thread | yarn containing the hydrophilic fiber which comprises clothing on the weft. The shaded portion indicates a floating portion on the back of the structure of the yarn including the hydrophilic fiber.
FIG. 6: Comfort of the present invention White coat and comfort prevention It is another example of the structure | tissue chart of the textile fabric which arranged the thread | yarn containing the hydrophilic fiber which comprises clothing on the weft. The shaded portion indicates a floating portion on the back of the structure of the yarn including the hydrophilic fiber.
FIG. 7 Comfort of the present invention White coat and comfort prevention It is an example of the organization chart at the time of arranging the thread containing the hydrophilic fiber which constitutes clothes to a warp. The shaded portion indicates a floating portion on the back of the structure of the yarn including the hydrophilic fiber.
FIG. 8 Comfort of the present invention White coat and comfort prevention It is another example of the organization chart at the time of arranging the yarn containing the hydrophilic fiber which constitutes clothes to the warp. The shaded portion indicates a floating portion on the back of the structure of the yarn including the hydrophilic fiber.
9 is a structural diagram showing a woven structure used in Comparative Example 2. FIG. The shaded portion is a floating portion on the back side of the structure of the yarn including the hydrophilic fiber.
10 is a structural diagram showing a woven structure used in Comparative Example 3. FIG. The shaded portion is a floating portion on the back side of the structure of the yarn including the hydrophilic fiber.

Claims

A hydrophobic synthetic fiber yarn is mainly a front side, a yarn containing hydrophilic fibers mainly forms a back side, and a comfortable white garment comprising a double woven or multi-woven structure interwoven fabric,
The yarn containing the hydrophilic fiber is a yarn containing 5 to 50% by weight of the acrylate fiber,
In the weaving fabric, either one of the weft or the warp, the yarn (A or C) containing the hydrophilic fiber and the hydrophobic synthetic fiber yarn (B or D) are composed of one alternating structural unit (A / B). C / D), or B / A / B or D / C / D, and the maximum number of floats on the back surface of the yarn containing hydrophilic fibers is 2 to 4, and The number of surface float of the yarn containing the hydrophilic fiber is 1, and furthermore, using the fiber product new function evaluation council (JAFET) standard combination detergent, as described in the test method of antibacterial processed fiber product (specific use) A comfortable lab coat, wherein the bacteriostatic activity value after washing 50 times by the washing method is 5.8 or more and 7.0 or less.

The see-through preventing property according to claim 1, wherein the hydrophobic synthetic fiber is a polyester-based synthetic fiber containing 2 to 3% by weight of a matting agent, and the yarn containing the acrylate-based fiber is a spun yarn. Comfortable lab coat with excellent hygroscopicity.

Conductive synthetic fiber filaments or composite yarns containing conductive synthetic fiber filaments are used for at least part of the warp and / or weft of the fabric and are arranged on the back side or intermediate layer of the double woven or multi-woven structural structure The comfortable lab coat according to claim 1 or 2.

The comfort according to any one of claims 1 to 3, wherein the acrylate fiber is a fiber in which a nitrile group of a polymer having acrylonitrile as a main repeating unit is introduced with a hydrazine-based crosslinking bond. White coat.

Selected from quaternary ammonium salts, phenolamides, copper compounds, silver compounds, picaneides, pyridones, pyridines, nitriles, haloalkylthios, organic iodines, thiazoles, benzimidazoles The comfortable lab coat according to any one of claims 1 to 4, wherein at least one antibacterial agent is applied.

A comfort preventive garment comprising a double woven or multi-woven structure woven fabric in which a hydrophobic synthetic fiber yarn mainly forms the front side, and a yarn containing hydrophilic fibers mainly forms the back side. ,
The yarn containing the hydrophilic fiber is a yarn containing 5 to 50% by weight of the acrylate fiber,
In the weaving fabric, in either one of the weft and the warp, the yarn (A or C) containing hydrophilic fibers and the hydrophobic synthetic fiber yarn (B or D) are composed of one alternating structural unit (A / B). C / D), or B / A / B or D / C / D, and the maximum number of floats on the back surface of the yarn containing hydrophilic fibers is 2 to 4, and The number of surface float of the yarn containing the hydrophilic fiber is 1, and furthermore, using a fiber product new function evaluation council (JAFET) standard combination detergent, and described in the test method for antibacterial processed fiber products (specific use) A comfort-preventing garment characterized in that the bacteriostatic activity value after washing 50 times by the washing method is 5.8 to 7.0.

The comfortable preventive garment according to claim 6, wherein the hydrophobic synthetic fiber is a polyester synthetic fiber containing 2 to 3% by weight of a matting agent, and the yarn containing the acrylate fiber is a spun yarn.

Conductive synthetic fiber filaments or composite yarns containing conductive synthetic fiber filaments are arranged on the back side or intermediate layer of a double-woven or multi-woven structural structure as at least part of the warp and / or weft of the fabric The comfortable preventive garment according to claim 6 or 7.

The comfort according to any one of claims 6 to 8, wherein the acrylate fiber is a fiber in which a nitrile group of a polymer having acrylonitrile as a main repeating unit is introduced with a hydrazine-based crosslinking bond. Preventive clothing.

Selected from quaternary ammonium salts, phenolamides, copper compounds, silver compounds, picaneides, pyridones, pyridines, nitriles, haloalkylthios, organic iodines, thiazoles, benzimidazoles The comfortable preventive garment according to any one of claims 6 to 9, wherein at least one antibacterial agent is applied.