JP2004044018A - High-density textile fabric - Google Patents

High-density textile fabric Download PDF

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Publication number
JP2004044018A
JP2004044018A JP2002203094A JP2002203094A JP2004044018A JP 2004044018 A JP2004044018 A JP 2004044018A JP 2002203094 A JP2002203094 A JP 2002203094A JP 2002203094 A JP2002203094 A JP 2002203094A JP 2004044018 A JP2004044018 A JP 2004044018A
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Prior art keywords
woven fabric
density
less
warp
density woven
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JP2002203094A
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Japanese (ja)
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JP4228113B2 (en
Inventor
Hiroyuki Miyano
宮野 裕行
Noriki Fukunishi
福西 範樹
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Toyobo Co Ltd
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Toyobo Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a high-density textile fabric having high hydraulic pressure proofness and high tear strength enough to be widely usable as e.g. a material for sportswear and comprising soft and lightweight synthetic fibers with reduced gloss feeling. <P>SOLUTION: The high-density textile fabric is such one that the respective cover factors of warps and wefts comprising inorganic microparticle-containing synthetic fibers sum to ≥2,000. The textile fabric is ≥6.0kPa in waterproof pressure and ≥9.8 N in tear strength, wherein at least a part of the weave design constituting the ground portion of the textile fabric is not a plain design. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は合成繊維で構成された高密度織物に関するものであり、更に詳しくはスポーツ用の衣料素材等として広く使用することが可能な高強力で防水性を有し、ソフトで軽量な高密度織物に関するものである。
【0002】
【従来の技術】
従来からポリエステル、ナイロンなどの合成繊維を使った高密度織物が製造、商品化され広く利用されている。該高密度織物は比較的、単糸繊度の細いマルチフィラメントを使用し、且つカバーファクターと呼ばれる織物面積に対する経糸及び緯糸が占める面積割合を示す係数が2000から3000クラスの高密度となるように製織、染色加工することによって得ることができ、該高密度織物は優れた高強力、防水性を有し、尚且つソフトで柔軟な風合いを有しており、とりわけスポーツ衣料分野への用途展開はめざましいものである。しかしながら、従来のスポーツ衣料用の高密度織物においては地合いを丈夫にし、高い防水性・耐水圧を得る為に織物を構成する地部分のすべての織組織をヒラ組織とした織物が多いが、ヒラ組織で織成された高密度織物は経糸と緯糸の組織点が多いが故に織物の引裂き強力が小さくなる傾向にある。従って、ヒラ組織で耐水圧が高く、なお且つ織物の引裂き強力を高くすることは容易なことではない。高い引裂き強力を得る対策としては、太い糸条の使用が考えられるが、織物が硬く、また重たくなってスポーツ衣料としては好ましくないものとなる。
【0003】
一方、従来の合成繊維から構成された高密度織物は繊維表面の屈折率の高さ等から好ましくない光沢感が発生し、消費者から嫌われる要素となっていた。光沢感を軽減した織物として、仮撚加工された合成繊維で構成された高密度織物があるが、仮撚加工を施すとコストアップにつながることから、繊維内部に屈折率の高い無機微粒子を含有させた所謂フルダルと呼ばれたフィラメントを使って光沢感を解消する試みもある。しかしながら、光沢感を抑え、なお且つ単糸繊度の小さい合成繊維で構成された薄地軽量の優れた防水性を有する高密度織物は知られていない。
【0004】
【発明が解決しようとする課題】
本発明者は前記のような課題を解決しようとするものであって、高い耐水圧、高い引裂き強力を有し、なお且つ光沢感を軽減したソフトで軽量な合成繊維から構成された高密度織物を提供しようとするものである。
【0005】
【発明が解決するための手段】
即ち、本発明は下記の構成からなる。
1.合成繊維からなる経糸と緯糸のカバーファクターの総和が2000以上である高密度織物において、耐水圧が6.0kPa以上であり、織物の地部分を構成する織組織の少なくとも一部がヒラ組織以外からなることを特徴とする高密度織物。
2.経糸及び/又は緯糸が総繊度が100デシテックス以下で、単糸繊度が1.0デシテックス以下であり、且つ平均粒径が0.5μm以下の無機微粒子を0.2重量%以上、10.0重量%以下含有するポリエステルマルチフィラメント又はナイロンマルチフィラメントであることを特徴とする上記第1に記載の高密度織物。
3.目付けが150g/m以下であることを特徴とする上記第1又は第2に記載の高密度織物。
4.織組織がリップストップ組織であり、経糸切断方向及び緯糸切断方向切断の引裂き強力が共に9.8N以上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高密度織物。
【0006】
【発明の実施の形態】
以下本発明について詳細に説明する。
本発明の高密度織物は経糸と緯糸のカバーファクターの総和が2000以上であることが好ましい。これは優れた防水性(耐水圧)と引き裂き強力を得るためである。本発明で言うカバーファクターとは式:{糸の総繊度(デシテックス)}1/2 ×{織物密度(本/in)}で表され、その総和は経糸、緯糸別に求められたカバーファクターの和で表される。カバーファクターの総和が大きいことは織物面積に占める糸の面積が大きいことを意味し、織物の緻密性が高いと言える。優れた防水性を有する高密度織物を得るためには、高密度織物の耐水圧は6.0kPa以上であることが好ましい。さらに好ましくは8.0kPa以上、最も好ましくは10.0kPa以上である。前記の耐水圧を満足させる上においても、カバーファクターが2000以上であることが好ましい。但し、4000を越えると風合いが硬く織物が重たくなってスポーツ衣料用途としては好ましくない。
【0007】
また、高い引裂き強力を得るために織物の地部分を構成する織組織の少なくとも一部がヒラ組織以外からなるものとすることが好ましい。織物の地部分とは織物の左右両端部分に必要に応じて設けられた耳部分を除く、本来の織物部分のことである。織組織の少なくとも一部がヒラ組織以外であるとは、ヒラ組織を基本組織とし、部分的にヒラ組織以外の組織が複合された複合組織を包含するものである。具体的には、綾組織、朱子組織、または梨地、経2重、緯2重、経緯2重組織、、リップストップ組織(前記のヒラ組織を基本組織とし、部分的にヒラ組織以外の組織が複合された格子柄を持つ複合組織の代表的なもの)等で構成された織物が例示される。中でも、織物の耐水圧が高く、且つ地合いの丈夫な石目組織やナナコ組織とヒラ組織を複合したリップストップ組織の織物が好ましい。織物の地部分の織組織がヒラ組織ばかりで構成されたヒラ織物では単位面積当たりの組織点が多いことから引裂き強力の低下を招き好ましくない。リップストップ組織の格子柄の間隔は1インチ以下が好ましく、更に好ましくは1cm以下、最も好ましくは5mm以下である。なお、ヒラ組織以外の組織を含んで構成される高密度織物では、経糸と緯糸の組織点が少なくなって、耐水圧が下がることも起こり得るので、必要に応じて染色仕上げ加工においてカレンダー加工や樹脂加工等を施すことも好ましい。
【0008】
そして、スポーツ衣料を主用途とする高密度織物は、例えば雨中のゴルフ用レインウェア等、防水効果と共に動きやすさが重視される。そのため軽量化すべく織物の目付けは150g/m以下、更には120g/m以下を満たすことが好ましい。そして、織物の厚みで0.15mm以下とすることによってスポーツ衣料として薄く、軽量感を有する好ましい高密度織物と言える。
【0009】
本発明の高密度織物の構成糸はポリエステルマルチフィラメントまたはナイロンマルチフィラメントであることが好ましく、総繊度が100デシテックス以下、単糸繊度が1.0デシテックス以下で、平均粒径が0.5μm以下の無機微粒子を0.2重量%以上、10.0重量%以下含有していることが好ましい。総繊度を100デシテックス以下とすることによって、高いカバーファクターとしながらも薄地で軽量の高密度織物が得られる。好ましくは90デシテックス以下、更に好ましくは60デシテックス以下である。また、高密度織物の耐水圧を高め、風合いをソフトにするために単糸繊度が細いものが好ましく、1.0デシテックス以下、さらに好ましくは0.7デシテックス以下、最も好ましくは0.6デシテックス以下である。マルチフィラメントが有するフィラメント数は特に限定されないが、耐水圧を高めるために70本以上が好ましく、より好ましくは100本以上である。織物設計において経緯単位密度間、即ち経方向、緯方向1インチ間の総フィラメント数を各々少なくとも10000本以上することによって耐水、防水性に非常に優れた高密度織物とすることができ、好ましい。そしてフィラメントの光沢感を軽減するために平均粒径が0.5μm以下の屈折率の高い無機微粒子を0.2重量%以上含有することが好ましく、無機微粒子を含有することによって織物の落ち感、ドレープ性を高め、紫外線を遮蔽する効果も見られる。無機微粒子としては酸化チタン、シリカ、炭酸カルシウムなどが挙げられるが、中でも白度が高く、光沢感の軽減効果が高い二酸化チタンが好ましく使用され、製糸する上で最も適した無機微粒子と言える。また、繊維間の摩擦力を小さくすることができるので高密度織物の引裂き強力を高める効果もある。但し、平均粒径が0.5μmを超えた無機微粒子を添加することや10.0重量%を超えて添加することは製糸性を損ね、工業生産を悪化させる事になるので、平均粒径はより好ましくは0.4μm以下、無機微粒子の添加量は5重量%以下とすることが好ましく、更に好ましくは1.5重量%以上、2.5重量%以下である。
【0010】
本発明の合成繊維で構成された高密度織物の製織方法については特に限定されないが、通常の整経工程などの経糸準備工程や、緯糸準備工程の後、製織される。ここで経糸には無撚若しくは加撚されていても撚係数(T√D、Tは撚数(回/m、Dは糸の総繊度(dtex)を示す)が5000以下の甘撚であることが好ましい。染色加工工程で必要に応じてカレンダー工程にて織物を押圧し、繊維を偏平化させることによって組織間の隙間を小さくすることができるが、その場合にも経糸の撚数が高くなると繊維の集束性が増し、カレンダー工程において繊維が偏平化しにくくなるため、撚係数は小さいことが好ましく、より好ましい範囲として無撚若しくは撚係数が4000以下を例示できる。緯糸の撚数も前述に記載のとおり無撚、若しくは撚係数が5000以下の甘撚糸が好ましい。そして、甘撚を施す場合にはアップツイスターの1つに分類されるイタリー撚糸機、ラージアップツイスターやダウンツイスターの1つに分類されるリング撚糸機、合撚機、またはダブルツイスターなどの一般の撚糸機を使用して撚糸され、取り分け汎用性に優れ、取り扱いが簡単な合撚機や生産性に優れたダブルツイスターが好ましく利用される。なお、無撚で製織する際には合成繊維に混繊交絡が施されていることが好ましく、混繊交絡度が20ケ/m以上、100ケ/m以下が好ましく、より好ましくは40ケ/m以上、80ケ/m以下である。しかし、100ケ/Mを越えると風合い硬化と好ましくないムラ外観をもたらし、好ましくない。混繊交絡手段についてはエアー交絡ノズルが好ましく、インターレーサーノズルやタスランノズルなどが好適である。
【0011】
経糸には必要に応じてサイジングを行っても良い。サイジング工程においては製織工程における織機或いは合成繊維の種類に応じてアクリル系糊とポリビニルアルコール糊などを使い分け、糊剤の配合比を適正化する。また、糊剤には平滑剤、柔軟剤、帯電防止剤、浸透剤などの添加も必要に応じて行われる。糊付着量としては合成繊維の形態にもよるが10%以下を目安にサイジングされる。なお、あらゆる工程において共通することであるが、接糸部の摩耗が無機微粒子の少ない合成繊維に比べて激しくなる場合があり、製糸時、例えば直接紡糸延伸時に適切な油剤を選択することや、耐摩耗性に優れた接糸部品を選択すること、また張力管理など適切な対策を取ることが好ましく、製織工程においては耐摩耗に優れた筬、ヘルドの選択、筬番手の適正化、或いは、サイジング糸・緯糸にオイリング処理をするなどの方策が必要に応じて立てられることが好ましい。
【0012】
本発明の合成繊維で構成された高密度織物は経糸・緯糸の密度バランスを適切に設計して得ることが好ましい。即ち、経糸と緯糸のカバーファクターの総和に対する経糸のカバーファクターの比率を50%以上、70%以下とすることが好ましい範囲であり、この範囲を満たさない場合は、高密度織物において防水性が低下したり、経緯の引裂き強力のバランスが崩れたりなど織物特性を損ね、緯糸密度が多い場合には織物生産性が下がることにもつながる。また、本発明では限定されないが、製織工程における筬番手も適切に選択する必要があり、規格にもよるが60番/鯨(鯨:3.79cm)以下のような荒い筬を使うと生機において筬筋が発生しやすくなって生機の品位を下げることになり、仕上がり品の高密度織物における防水性を下げる懸念もあるので使用は避けたほうが好ましい。但し、筬番手が100番/鯨以上になると目が細かく作業性を害する場合があるので好ましくない。
【0013】
本発明の高密度織物はレピア織機、エアージェット織機、ウオータジェット織機、フライシャトル織機、グリッパ織機から選択されるいずれかで製織することできる。そして、高付加価値を付与できる多色自由交換装置を有した織機、変化組織に対応することが可能なドビー装置を有した織機などは更に好ましく使用することができる。中でも、生産性の高く、製造コストが比較的安価なドビー装置を有するウォータージェット織機が好ましく採用される。
【0014】
染色仕上げ加工については通常の精練リラックス、染色加工を施す事によって仕上げることができる。耐水圧を大きくする上で、カレンダー加工を施しておくことも好ましい。カレンダー加工は染色仕上げ加工工程のどの段階でも可能であるが、染色後に行うことが好ましい。カレンダー加工の条件として、加熱温度を130〜190℃、圧力を5〜100kg/cm、速度を1〜30m/分に設定することを例示できる。又、必要に応じて織物片面若しくは両面に樹脂加工することもできる。コーティング法、ラミネート法、吸塵法、パッド法等により、撥水剤、ウレタン系樹脂、アクリル系樹脂、シリコン系樹脂等により樹脂加工し、撥水性や透湿防水性等、所望の特性を得ることができる。
【0015】
前述の例の様にして得られた合成繊維で構成された本発明の高密度織物は引裂き強力が経方向、緯方向ともに9.8N以上を満たすことが好ましい。本発明の高密度織物はスポーツ衣料用途が中心であり、例えば雨中のゴルフ用レインウェア等の運動に耐え得る衣料とするためには経方向、緯方向ともに9.8N以上の引裂き強力を備えていることが好ましい。
【0016】
本発明に用いられる合成繊維としてはポリエステル、ナイロン、アクリル、ポリエチレンなどいずれでも構わないが、中でもポリエステル、ナイロンが好ましい。ポリエステルとしては主たる成分がポリエチレンテレフタレートからなるポリエステルが代表例であり、通常の公知の方法で重合することにより得られるが、本発明の目的を損なわない程度の範囲内で他の第3成分を共重合してもよい。具体的にはアジピン酸、シュウ酸、セバシン酸、イソフタル酸、5―ソジュームスルホイソフタル酸などのジカルボン酸類、ジエチレングリコール、ポリエチレングリコールなどのグリコール類、ビスフェノールAまたはそのエチレンオキサイド付加物、ヒドキシ安息香酸などのオキシカルボン酸などを単独あるいは2種以上を組み合わて用いることができる。また光沢感を抑制する目的の無機微粒子の他、本発明の目的を損なわない範囲で抗酸化剤、蛍光増白剤、紫外線吸収剤、制電剤、難燃剤などの添加物を配合しても良い。また、ナイロンとはアミド結合を有した高分子を指し、主に脂肪族ポリアミドを指す。中でもナイロン66、ナイロン6が好適であり、ポリエステルと同様、他の共重合物や添加物を含有していても構わない。
【0017】
本発明の高密度織物を構成する合成繊維の断面形状は丸、三角、四角などの多角形、偏平、中空、星、歯車型などどんな形状でも構わず、特に限定されないが、光沢感を抑制する上で丸断面が好ましい。また、合成繊維がマルチフィラメントである場合、溶融紡糸されたものを延伸機で延伸する方法によって得ることが出来るが、直接紡糸延伸した、所謂、スピンドロー方式で得ることが低コストで好ましい。更には混繊機で収縮率の異なる繊維を混繊した異収縮混繊糸・自発伸長混繊糸、タスラン加工糸など糸加工を施した合成繊維マルチフィラメントでも構わない。
【0018】
また、本発明の高密度織物を構成する合成繊維糸は少なくとも3.5cN/dtexの強度と少なくとも25%の伸度を有していることが好ましい。更に好ましくは強度が4.0cN/dtex以上、伸度が30%以上である。合成繊維の乾熱収縮率は衣料用を目的にしたものであれば40%以下、更に好ましくは20%以下、最も好ましくは15%以下である。
【0019】
以下に実施例を挙げて本発明をより具体的に発明するが、本発明はこれらによって限定されるものではない。なお、本発明で用いる測定方法は下記である。
[耐水圧] JIS L−1092に記載される耐水度試験装置(低水圧用)に準じて測定した。
[引裂き強力] JIS L−1096に記載されるペンジュラム法に準じて測定した。
[目付け]織物から50cm2 の円形試料を2枚作成し、2枚合わせて重量を測定し、100倍した数値を用いた(単位:g/m)。
【0020】
(実施例1)
二酸化チタンの平均粒径が0.3μm、2.0重量%含有したポリエチレンテレフタレートフルダルレジンを使用し、直接紡糸延伸方法によって得られた56デシテックス108フィラメント丸断面のスピンドロー糸を得た。先ず経糸準備として、ヤマダ製の一本糊付機YS−6型にて速度200M/分、乾燥温度70℃、糊液温度40℃、付着量を7.0重量%に設定し糊付けを行った。なお、糊は互応化学工業株式会社製のアクリル酸エステル共重合体アンモニウム塩タイプのプラスサイズJ−60と、日本合成化学工業株式会社製のポリビニルアルコール糊としてゴーセノールGL−05を使用し、各々の混合比率を6:4に調整した濃度が8%、粘度が5mPasの混合糊を使用した。また混合糊には平滑剤、柔軟剤、浸透剤として互応化学工業株式会社製のサイテックスK−380(有効成分25%)、サイテックスT−190(同35%)、サイテックス24(同40%)を添加し、帯電防止剤として大日本インキ化学工業株式会社製のAS−20(同35%)を用い、夫々2%、2%、0.2%、0.2%添加した。次いで得られた各々の糊付糸を(有)スズキワーパー製NAS SUPER−130W型を用いて筬入巾130cm、経糸本数9300本で整経を行った。次いで、(株)石川製作所製2001Sレピア織機に整経ビームを仕掛け、6mm程度間隔の格子柄を形成するリップストップ組織で、緯糸として経糸と同じ56デシテックス108フィラメントを打ち込み、製織した。製織性は非常に良好であり、毛羽発生による経糸切れはなく、接糸品、筬などの摩耗は問題にならない程度であった。そして、得られた生機品質は高いものであり、筬筋などは見られなかった。該生機を通常の精練リラックス、染色、カレンダー、撥水加工などの仕上げ工程に通し、染色加工布を得た。なお、染色加工布のカバーファクターの総和は2570であった。該染色加工布の引裂き強力は経糸方向13.6N、緯糸方向10.5Nであり、また耐水圧が9.8kPaを有した高強力、透湿防水性、ソフト感で軽量感に優れた光沢感のないフルダル調ポリエステルマルチフィラメント高密度織物でありスポーツ衣料用途に適したものであった。結果を表1に示す。
【0021】
(比較例1)
織組織をヒラ組織で製織した以外は実施例1と全く同様にして高密度織物を得た。なお、染色加工布のカバーファクターの総和は2447であった。得られた高密度織物は実施例1と同様に高い耐水性、防水性を示したが、引裂き強力が低くなりスポーツ衣料用途には適していない高密度織物であった。結果を表1に示す。
【0022】
(実施例2)
実施例1において、二酸化チタンを0.4重量%含有したポリエチレンテレフタレートセミダルレジンを用いて直接紡糸延伸し、以下、実施例1と全く同様にして染色加工布を得た。該染色加工布はスポーツ衣料用途に好適なポリエステルマルチフィラメント高密度織物であり、高強力、透湿防水性、ソフト感で軽量感に優れており、実施例1の高密度織物と比較してやや光沢感を強く感じるものの、総合的には好ましい高密度織物であった。結果を表1に示す。
【0023】
(実施例3)
実施例1において、二酸化チタンの平均粒径が0.3μm、2.0重量%含有したナイロン6レジンを使用し、直接紡糸延伸方法によって得られた56デシテックス48フィラメント丸断面のナイロン6マルチフィラメントを使用し、以下実施例1と同様にして織物生機を得た。得られた生機を通常の精練リラックス、染色を行い、カレンダー加工を施して染色加工布を得た。なお、染色加工布のカバーファクターの総和は2282で得られた高密度織物は高強力、高い耐水圧・防水性を示し、スポーツ衣料に好適な高密度織物であった。結果を表1に示す。
【0024】
(比較例2)
実施例3で用いた経糸、緯糸を使用し、染色加工布のカバーファクターの総和を1850とした以外は実施例1と同様にして染色加工布を得た。該染色加工布の耐水圧は5.5kPaであり、耐水圧・防水性において満足し得るものではなかった。結果を表1に示す。
【0025】
(実施例4)
経糸用として、二酸化チタンの平均粒径が0.3μm、2.0重量%含有した直接紡糸延伸方法によって得られた84デシテックス144フィラメント丸断面のポリエステルマルチフィラメント、緯糸用として5―ソジュームスルホイソフタル酸を共重合させ、二酸化チタンの平均粒径が0.3μm、0.4重量%含有した直接紡糸延伸方法によって得られた84デシテックス72フィラメント丸断面のカチオン可染ポリエステルマルチフィラメントを使用し、以下若干の密度修正を施した以外は実施例1と同様にして織物生機を得た。得られた生機を通常の精練リラックスの後、分散染料と分散型カチオン染料を用いて異色相に染色し、カレンダー加工を施し染色加工布を得た。なお、染色加工布のカバーファクターは2560であった。得られた高密度織物は高強力、高い耐水圧・防水性を示し、スポーツ衣料に好適で玉虫調の色彩外観効果を持つ極めて好ましい高密度織物であった。結果を表1に示す。
【0026】
【表1】

Figure 2004044018
【0027】
【発明の効果】
本発明によって、スポーツ衣料用途等の素材として広く使用することが可能な高強力で防水性を有し、ソフトで軽量であり、なお且つ光沢感を軽減した合成繊維から構成された高密度織物を提供することが可能となった。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a high-density woven fabric composed of synthetic fibers, and more particularly to a high-strength, waterproof, soft, lightweight, high-density woven fabric that can be widely used as a clothing material for sports and the like. It is about.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, high-density woven fabrics using synthetic fibers such as polyester and nylon have been manufactured, commercialized, and widely used. The high-density woven fabric is made of a multifilament having a relatively small single-filament fineness, and is woven so that the coefficient indicating the area ratio of the warp and the weft to the woven fabric area, called the cover factor, becomes a high density of 2,000 to 3,000 class. The high-density woven fabric has excellent high strength and waterproofness, and has a soft and flexible texture, and is particularly remarkable for use in sports clothing. Things. However, in conventional high-density woven fabrics for sports clothing, in order to strengthen the formation and obtain high waterproofness and water pressure resistance, there are many woven fabrics in which all the woven structures of the ground portion constituting the woven fabric are laid. A high-density woven fabric having a texture has a large number of warp and weft texture points, and thus the tear strength of the fabric tends to decrease. Therefore, it is not easy to increase the water pressure resistance of the flora tissue and to increase the tear strength of the woven fabric. As a measure to obtain high tear strength, use of a thick thread is conceivable, but the woven fabric is hard and heavy, which is not preferable for sports clothing.
[0003]
On the other hand, conventional high-density woven fabrics composed of synthetic fibers have an undesirable glossiness due to the high refractive index of the fiber surface and the like, which has become a factor hated by consumers. There is a high-density woven fabric composed of false twisted synthetic fibers as a woven fabric with reduced glossiness, but false twisting leads to an increase in cost, so it contains inorganic fine particles with a high refractive index inside the fiber. There is also an attempt to eliminate the glossiness by using a so-called filament called a so-called full dur. However, there is no known high-density woven fabric which is excellent in waterproofness and is thin and lightweight, which is made of synthetic fibers having a small single-filament fineness while suppressing glossiness.
[0004]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION The present inventor aims to solve the above-mentioned problems, and has a high water pressure, a high tear strength, and a high-density woven fabric made of soft and lightweight synthetic fibers with reduced glossiness. It is intended to provide.
[0005]
Means for Solving the Invention
That is, the present invention has the following configurations.
1. In a high-density woven fabric in which the sum of the cover factors of the warp and the weft composed of synthetic fibers is 2,000 or more, the water pressure resistance is 6.0 kPa or more, and at least a part of the woven structure constituting the ground portion of the woven fabric is formed from a material other than the fold structure. A high-density woven fabric characterized by becoming.
2. The warp and / or weft have a total fineness of 100 decitex or less, a single yarn fineness of 1.0 decitex or less, and an inorganic fine particle having an average particle size of 0.5 μm or less is 0.2% by weight or more and 10.0% by weight. % Of the polyester multifilament or the nylon multifilament containing at most 10% by weight.
3. 3. The high-density woven fabric according to the first or second item, wherein the basis weight is 150 g / m 2 or less.
4. 4. The high-density woven fabric according to any one of the first to third features, wherein the woven structure is a ripstop structure, and the tear strength in both the warp cutting direction and the weft cutting direction is 9.8 N or more.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail.
In the high-density woven fabric of the present invention, the sum of the cover factors of the warp and the weft is preferably 2000 or more. This is to obtain excellent waterproofness (water pressure resistance) and tear strength. The cover factor referred to in the present invention is represented by the formula: {total fineness of yarn (decitex)} 1/2 x {woven fabric density (book / in)}, and the total is the sum of the cover factors obtained for each warp and weft. Is represented by A large sum of the cover factors means that the area of the yarn in the woven fabric area is large, and it can be said that the denseness of the woven fabric is high. In order to obtain a high-density woven fabric having excellent waterproofness, the high-density woven fabric preferably has a water resistance of 6.0 kPa or more. It is more preferably at least 8.0 kPa, most preferably at least 10.0 kPa. In order to satisfy the above-mentioned waterproof pressure, the cover factor is preferably 2000 or more. However, if it exceeds 4000, the texture becomes hard and the fabric becomes heavy, which is not preferable for use in sports clothing.
[0007]
Further, in order to obtain high tear strength, it is preferable that at least a part of the woven structure constituting the ground portion of the woven fabric is made of a material other than the fly structure. The ground portion of the fabric is an original fabric portion except for ear portions provided on both left and right end portions of the fabric as necessary. The expression that at least a part of the woven tissue is other than the fly tissue includes a composite tissue in which the fly tissue is a basic tissue and a tissue other than the fly tissue is partially combined. Specifically, Aya tissue, satin tissue, or satin fabric, double meridian, double weft, double meridian, ripstop tissue (the above-mentioned flat tissue is used as a basic tissue, and an organization other than the partially expanded tissue is used) A woven fabric composed of a typical composite structure having a composite lattice pattern) is exemplified. Above all, a woven fabric having a high water pressure and a strong texture and a rip-stop structure obtained by combining a nanako structure and a fly structure is preferable. In a flat woven fabric in which the woven structure of the ground portion of the woven fabric is solely a flat structure, the number of texture points per unit area is large, and the tear strength is undesirably reduced. The gap between the lattice patterns of the ripstop structure is preferably 1 inch or less, more preferably 1 cm or less, and most preferably 5 mm or less. In the case of a high-density woven fabric including a structure other than the fluff structure, the number of warp and weft structure points is reduced, and the water pressure may be reduced. It is also preferable to perform resin processing or the like.
[0008]
In high-density woven fabrics mainly used for sports clothing, importance is placed on ease of movement as well as waterproofness, such as rainwear for golf in the rain. Therefore, the fabric weight preferably satisfies 150 g / m 2 or less, more preferably 120 g / m 2 or less, in order to reduce the weight. By setting the thickness of the woven fabric to 0.15 mm or less, it can be said that it is a preferable high-density woven fabric which is thin and lightweight as a sports garment.
[0009]
The constituent yarn of the high-density woven fabric of the present invention is preferably a polyester multifilament or a nylon multifilament, and has a total fineness of 100 dtex or less, a single yarn fineness of 1.0 dtex or less, and an average particle size of 0.5 μm or less. It is preferable to contain inorganic fine particles in an amount of 0.2% by weight or more and 10.0% by weight or less. By setting the total fineness to 100 decitex or less, a thin, lightweight, high-density woven fabric can be obtained while having a high cover factor. Preferably it is 90 decitex or less, more preferably 60 decitex or less. In addition, it is preferable that the single yarn fineness is small in order to increase the water pressure resistance of the high-density fabric and soften the texture, 1.0 dtex or less, more preferably 0.7 dtex or less, most preferably 0.6 dtex or less. It is. The number of filaments of the multifilament is not particularly limited, but is preferably 70 or more, more preferably 100 or more, in order to increase the water pressure resistance. In the design of the woven fabric, it is preferable that the total number of filaments between the unit densities in the weft direction, that is, 1 inch in the warp direction and the weft direction is at least 10,000 or more, respectively, so that a high-density woven fabric with extremely excellent water resistance and waterproofness can be obtained. In order to reduce the glossiness of the filament, it is preferable to contain 0.2% by weight or more of inorganic particles having a high refractive index having an average particle size of 0.5 μm or less. It also has the effect of increasing drape and shielding ultraviolet rays. Examples of the inorganic fine particles include titanium oxide, silica, and calcium carbonate. Among them, titanium dioxide having high whiteness and a high gloss reducing effect is preferably used, and can be said to be the most suitable inorganic fine particles for yarn production. Further, since the frictional force between the fibers can be reduced, there is also an effect of increasing the tear strength of the high-density woven fabric. However, adding inorganic fine particles having an average particle size of more than 0.5 μm or adding more than 10.0% by weight impairs spinnability and deteriorates industrial production. It is more preferably 0.4 μm or less, and the addition amount of the inorganic fine particles is preferably 5% by weight or less, and further preferably 1.5% by weight or more and 2.5% by weight or less.
[0010]
The method for weaving the high-density woven fabric composed of the synthetic fiber of the present invention is not particularly limited, but is woven after a warp preparation step such as a normal warping step or a weft preparation step. Here, even if the warp is not twisted or twisted, the twist coefficient (T 撚 D, T is the number of twists (twice / m, D indicates the total fineness (dtex) of the yarn)) is a sweet twist of 5000 or less. In the dyeing process, if necessary, the fabric is pressed in a calendering process to flatten the fibers, thereby making it possible to reduce the gap between the tissues. If so, the fiber convergence is increased, and the fiber is less likely to be flattened in the calendering step. Therefore, the twist coefficient is preferably small, and a more preferable range is, for example, no twist or a twist coefficient of 4000 or less. As described above, a non-twisted yarn or a twisted yarn having a twist coefficient of 5000 or less is preferable, and in the case of applying a sweet twist, an Italy twisting machine classified as one of up twisters and a large up twister. It is twisted using a general twisting machine such as a ring twisting machine, a twisting machine, or a double twister classified as one of the down twisters. In the case of non-twisting, it is preferred that the synthetic fibers are mixed and entangled, and the degree of mixed entanglement is not less than 20 / m and 100 / m. The number is preferably 40 to 80 m / m, but more than 100 m / m brings about texture hardening and unfavorable uneven appearance, which is not preferable. Interlaced nozzles are preferred, and interlaced nozzles and Taslan nozzles are preferred.
[0011]
The warp may be sized if necessary. In the sizing step, an acrylic paste and a polyvinyl alcohol paste are selectively used depending on the type of a weaving machine or a synthetic fiber in the weaving step, and the mixing ratio of the paste is optimized. Further, a smoothing agent, a softening agent, an antistatic agent, a penetrating agent, and the like are added to the paste as needed. The amount of glue depends on the form of the synthetic fiber but is sized with a standard of 10% or less. It should be noted that, as is common in all processes, there is a case where the abrasion of the yarn-attached portion becomes intense as compared with a synthetic fiber having a small amount of inorganic fine particles, and at the time of spinning, for example, selecting an appropriate oil agent at the time of direct spinning and drawing, It is preferable to select a threaded part with excellent wear resistance and take appropriate measures such as tension control.In the weaving process, select a reed and heald with excellent wear resistance, optimize the reed count, or It is preferable to take measures such as oiling the sizing yarn and weft yarn as necessary.
[0012]
The high-density woven fabric composed of the synthetic fiber of the present invention is preferably obtained by appropriately designing the density balance of warp and weft. That is, it is a preferable range that the ratio of the warp cover factor to the total sum of the warp and weft cover factors is 50% or more and 70% or less. In addition, the properties of the fabric are impaired, for example, the balance of tear strength in the process is lost, and if the weft density is high, the productivity of the fabric may be reduced. Although not limited by the present invention, it is necessary to appropriately select the reed count in the weaving process, and depending on the standard, if a rough reed such as 60th / whale (whale: 3.79 cm) or less is used, It is preferable to avoid using reeds because reeds are likely to occur and the quality of the greige machine is reduced, and there is a concern that the waterproofness of the finished high-density fabric may be reduced. However, if the reed count is 100th / whale or more, it is not preferable because the eyes are fine and workability may be impaired.
[0013]
The high-density woven fabric of the present invention can be woven by any one selected from a rapier loom, an air jet loom, a water jet loom, a fly shuttle loom, and a gripper loom. A loom having a multicolor free exchanging device capable of providing high added value, a loom having a dobby device capable of coping with a changing structure, and the like can be more preferably used. Among them, a water jet loom having a dobby device with high productivity and relatively low production cost is preferably employed.
[0014]
The dyeing finish can be finished by performing ordinary scouring relaxation and dyeing. In order to increase the water resistance, it is also preferable to carry out calendering. The calendering can be performed at any stage of the dyeing finishing process, but is preferably performed after the dyeing. Examples of calendering conditions include setting the heating temperature to 130 to 190 ° C., the pressure to 5 to 100 kg / cm 2 , and the speed to 1 to 30 m / min. Further, if necessary, one side or both sides of the fabric can be resin-processed. Applying water repellent, urethane resin, acrylic resin, silicone resin, etc. by coating method, laminating method, dust absorbing method, pad method, etc. to obtain desired properties such as water repellency, moisture permeability and waterproofness Can be.
[0015]
It is preferable that the high-density woven fabric of the present invention composed of the synthetic fibers obtained as described above has a tear strength satisfying 9.8 N or more in both the warp direction and the weft direction. The high-density woven fabric of the present invention is mainly used for sports clothing. For example, in order to provide clothing that can withstand exercise such as golf rainwear in the rain, it has a tear strength of 9.8 N or more in both the warp and weft directions. Is preferred.
[0016]
The synthetic fiber used in the present invention may be any of polyester, nylon, acryl, polyethylene and the like, and among them, polyester and nylon are preferable. As the polyester, a polyester whose main component is polyethylene terephthalate is a typical example, and can be obtained by polymerization by a commonly known method. However, the other third component may be used within a range not to impair the object of the present invention. It may be polymerized. Specifically, dicarboxylic acids such as adipic acid, oxalic acid, sebacic acid, isophthalic acid, and 5-sodium sulfoisophthalic acid, glycols such as diethylene glycol and polyethylene glycol, bisphenol A or its ethylene oxide adduct, and hydroxybenzoic acid Can be used alone or in combination of two or more. Further, in addition to the inorganic fine particles for the purpose of suppressing the glossiness, an additive such as an antioxidant, a fluorescent whitening agent, an ultraviolet absorber, an antistatic agent, or a flame retardant may be blended as long as the object of the present invention is not impaired. good. Nylon refers to a polymer having an amide bond and mainly refers to an aliphatic polyamide. Among them, nylon 66 and nylon 6 are preferable, and other copolymers and additives may be contained similarly to polyester.
[0017]
The cross-sectional shape of the synthetic fiber constituting the high-density woven fabric of the present invention may be any shape such as a polygon such as a circle, a triangle, and a square, a flat shape, a hollow, a star, and a gear shape. Above, a round cross section is preferred. When the synthetic fiber is a multifilament, it can be obtained by a method in which a melt-spun product is drawn by a drawing machine. However, it is preferable to obtain the product by a direct drawing process, that is, a so-called spin draw method at a low cost. Further, a synthetic fiber multifilament which has been subjected to yarn processing, such as a different shrinkage mixed yarn, a spontaneously elongated mixed yarn, or a Taslan processed yarn obtained by mixing fibers having different shrinkage ratios by a fiber mixing machine may be used.
[0018]
The synthetic fiber yarn constituting the high-density woven fabric of the present invention preferably has a strength of at least 3.5 cN / dtex and an elongation of at least 25%. More preferably, the strength is 4.0 cN / dtex or more and the elongation is 30% or more. The dry heat shrinkage of the synthetic fiber is 40% or less, more preferably 20% or less, and most preferably 15% or less if it is intended for clothing.
[0019]
Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited thereto. The measuring method used in the present invention is as follows.
[Water resistance] Measured according to a water resistance tester (for low water pressure) described in JIS L-1092.
[Tear Strength] The tear strength was measured according to the pendulum method described in JIS L-1096.
[Density] Two 50 cm 2 circular samples were prepared from the woven fabric, the weight of the two samples was measured, and a value multiplied by 100 was used (unit: g / m 2 ).
[0020]
(Example 1)
Using a polyethylene terephthalate full-dal resin containing titanium dioxide having an average particle diameter of 0.3 μm and containing 2.0% by weight, a spin draw yarn having a circular cross section of 56 decitex and 108 filaments obtained by a direct spin drawing method was obtained. First, as a warp preparation, sizing was performed using a single sizing machine YS-6 manufactured by Yamada at a speed of 200 M / min, a drying temperature of 70 ° C., a sizing liquid temperature of 40 ° C., and an adhesion amount of 7.0% by weight. . In addition, the glue used was an acrylic acid ester copolymer ammonium salt type plus size J-60 manufactured by Yoyo Kagaku Kogyo Co., Ltd. and Gohsenol GL-05 as a polyvinyl alcohol glue manufactured by Nippon Synthetic Chemical Industry Co., Ltd. A mixed paste having a concentration of 8% adjusted to a mixing ratio of 6: 4 and a viscosity of 5 mPas was used. The mixed paste contains a leveling agent, a softening agent, and a penetrant, Cytex K-380 (active ingredient: 25%), Cytex T-190 (35%), Cytex 24 (40) manufactured by Ryo Chemical Industries, Ltd. %), And AS-20 (35%) manufactured by Dainippon Ink and Chemicals, Inc. was used as an antistatic agent at 2%, 2%, 0.2% and 0.2%, respectively. Next, each of the obtained glued yarns was warped using a SUSUKI WAPER-made NAS SUPER-130W type with a reed width of 130 cm and 9,300 warps. Next, a warping beam was set on a 2001S rapier loom manufactured by Ishikawa Seisakusho Co., Ltd., and the same 56 dcitex 108 filament as the warp was driven in as a weft using a rip-stop structure forming a lattice pattern with an interval of about 6 mm. The weaving property was very good, there was no warp breakage due to the generation of fluff, and the abrasion of the spliced articles, reeds and the like was not a problem. The obtained greige quality was high, and no reeds were found. The greige fabric was subjected to ordinary finishing steps such as scouring relaxation, dyeing, calendering, and water repellent treatment to obtain a dyed cloth. The sum of the cover factors of the dyed cloth was 2,570. The dyed cloth has a tear strength of 13.6 N in the warp direction and 10.5 N in the weft direction, and has a water resistance of 9.8 kPa, a high strength, a moisture-permeable waterproof property, a soft feeling and a glossy feeling excellent in lightness. It was a full-dull polyester multifilament high-density woven fabric without any material and was suitable for sports clothing applications. Table 1 shows the results.
[0021]
(Comparative Example 1)
A high-density woven fabric was obtained in exactly the same manner as in Example 1 except that the weaving structure was woven with a spatula structure. The sum of the cover factors of the dyed cloth was 2,447. The resulting high-density woven fabric showed high water resistance and waterproofness as in Example 1, but had a low tear strength and was not suitable for sports clothing. Table 1 shows the results.
[0022]
(Example 2)
In Example 1, the spinning and drawing was performed directly using a polyethylene terephthalate semi-dal resin containing 0.4% by weight of titanium dioxide, and a dyed cloth was obtained in the same manner as in Example 1. The dyed cloth is a polyester multifilament high-density woven fabric suitable for use in sports clothing, and has high strength, moisture permeability and waterproofness, is excellent in softness and lightness, and is slightly glossy as compared with the high-density woven fabric of Example 1. Although the feeling was strong, it was a favorable high-density fabric overall. Table 1 shows the results.
[0023]
(Example 3)
In Example 1, the nylon 6 resin having an average particle diameter of 0.3 μm and containing 2.0% by weight was used, and a nylon 6 multifilament having a circular cross section of 48 decitex and 48 filaments obtained by a direct spin drawing method was used. Then, a woven fabric was obtained in the same manner as in Example 1. The obtained greige was subjected to ordinary scouring relaxation, dyeing, and calendering to obtain a dyed cloth. In addition, the high-density woven fabric obtained with the sum of the cover factors of the dyed cloths being 2282 exhibited high strength, high water pressure resistance and waterproofness, and was a high-density woven fabric suitable for sports clothing. Table 1 shows the results.
[0024]
(Comparative Example 2)
A dyed cloth was obtained in the same manner as in Example 1 except that the warp and the weft used in Example 3 were used, and the total of the cover factors of the dyed cloth was set to 1850. The water pressure resistance of the dyed cloth was 5.5 kPa, which was not satisfactory in water pressure resistance and waterproofness. Table 1 shows the results.
[0025]
(Example 4)
Polyester multifilament having a round section of 84 decitex 144 filaments obtained by direct spinning and drawing containing titanium dioxide having an average particle size of 0.3 μm and containing 2.0% by weight for warp, and 5-sodium sulfoisophthalate for weft. Using a cationically dyeable polyester multifilament having a round cross section of 84 decitex 72 filaments obtained by a direct spin drawing method containing an acid copolymerized and containing titanium dioxide having an average particle diameter of 0.3 μm and containing 0.4% by weight, A woven fabric was obtained in the same manner as in Example 1 except that the density was slightly corrected. After the obtained greige was relaxed by ordinary scouring, it was dyed in a different color using a disperse dye and a dispersive cationic dye, and calendered to obtain a dyed fabric. The cover factor of the dyed cloth was 2560. The obtained high-density woven fabric exhibited high strength, high water pressure resistance and waterproofness, and was a very preferable high-density woven fabric suitable for sports clothing and having an iridescent color appearance effect. Table 1 shows the results.
[0026]
[Table 1]
Figure 2004044018
[0027]
【The invention's effect】
According to the present invention, a high-density woven fabric composed of synthetic fibers having high strength and waterproofness, being soft and lightweight, and having a reduced glossiness, which can be widely used as a material for sports clothing and the like is provided. It became possible to provide.

Claims (4)

合成繊維からなる経糸と緯糸のカバーファクターの総和が2000以上である高密度織物において、耐水圧が6.0kPa以上であり、織物の地部分を構成する織組織の少なくとも一部がヒラ組織以外からなることを特徴とする高密度織物。In a high-density woven fabric in which the sum of the cover factors of the warp and the weft composed of synthetic fibers is 2,000 or more, the water pressure resistance is 6.0 kPa or more, and at least a part of the woven structure constituting the ground portion of the woven fabric is formed from a material other than the fold structure. A high-density woven fabric characterized by becoming. 経糸及び/又は緯糸が総繊度が100デシテックス以下で、単糸繊度が1.0デシテックス以下であり、且つ平均粒径が0.5μm以下の無機微粒子を0.2重量%以上、10.0重量%以下含有するポリエステルマルチフィラメント又はナイロンマルチフィラメントであることを特徴とする請求項1に記載の高密度織物。The warp and / or weft yarns have a total fineness of 100 dtex or less, a single yarn fineness of 1.0 dtex or less, and an inorganic particle having an average particle size of 0.5 μm or less from 0.2% by weight to 10.0% by weight. The high-density woven fabric according to claim 1, wherein the high-density woven fabric is a polyester multifilament or a nylon multifilament containing at most 10% by weight. 目付けが150g/m以下であることを特徴とする請求項1又は請求項2に記載の高密度織物。3. The high-density woven fabric according to claim 1, wherein the basis weight is 150 g / m 2 or less. 4. 織組織がリップストップ組織であり、経糸切断方向及び緯糸切断方向切断の引裂き強力が共に9.8N以上であることを特徴とする請求項1〜3のいずれかに記載の高密度織物。The high-density woven fabric according to any one of claims 1 to 3, wherein the woven structure is a ripstop structure, and the tear strength in both the warp cutting direction and the weft cutting direction is 9.8 N or more.
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WO2005095690A1 (en) * 2004-03-31 2005-10-13 Kb Seiren, Ltd. Polyester woven fabric
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WO2004050973A1 (en) * 2002-12-02 2004-06-17 Toyo Boseki Kabushiki Kaisya Polyamide multifilament woven fabric and process for producing the same
US8278227B2 (en) 2004-03-31 2012-10-02 Kb Seiren, Ltd. Polyester woven fabric
WO2005095690A1 (en) * 2004-03-31 2005-10-13 Kb Seiren, Ltd. Polyester woven fabric
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JP2009074213A (en) * 2007-09-25 2009-04-09 Toray Ind Inc Multifilament and high-density woven fabric
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