JPH09324355A - Nonwoven fabric - Google Patents

Nonwoven fabric

Info

Publication number
JPH09324355A
JPH09324355A JP8143890A JP14389096A JPH09324355A JP H09324355 A JPH09324355 A JP H09324355A JP 8143890 A JP8143890 A JP 8143890A JP 14389096 A JP14389096 A JP 14389096A JP H09324355 A JPH09324355 A JP H09324355A
Authority
JP
Japan
Prior art keywords
materials
nonwoven fabric
polymer
fiber
ethylene
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8143890A
Other languages
Japanese (ja)
Inventor
Tsutomu Miura
勤 三浦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuraray Co Ltd
Original Assignee
Kuraray Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kuraray Co Ltd filed Critical Kuraray Co Ltd
Priority to JP8143890A priority Critical patent/JPH09324355A/en
Publication of JPH09324355A publication Critical patent/JPH09324355A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To obtain a nonwoven fabric containing fibers produced from a specific thermoplastic polymer in a prescribed amount, having a METSUKE of a prescribed value or more, excellent in the balance of dynamic properties, heat resistance and chemical resistance and useful for clothes, industrial materials, medical treatment materials, etc. SOLUTION: This nonwoven fabric contains >=60wt.% of fibers comprising a polymer having a melt viscosity of 0.5-10.0dl/g, substantially comprising repeating units of the formula (A is a part derived from the same or different ethylenic unsaturated hydrocarbon polymerized through an ethylenic bond) and obtained by copolymerizing carbon monoxide with an olefin such as ethylene or propylene, has a METSUKE of >=10g/m<2> , and is used for agricultural materials, horticultural materials, etc.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明が属する技術分野】本発明は少なくとも一種のエ
チレン性不飽和炭化水素と一酸化炭素との線状交互ポリ
マーからなる繊維よりなる新規な不織布に関する。本発
明の不織布はその優れた力学的性質、耐熱性、耐薬品性
により、衣料、寝装寝具、産業用資材、土木資材、建設
資材、農業・園芸資材、医療資材、衛生資材、生活関連
資材をはじめ広範な用途に使用可能である。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel non-woven fabric comprising fibers composed of linear alternating polymers of at least one ethylenically unsaturated hydrocarbon and carbon monoxide. The non-woven fabric of the present invention has excellent mechanical properties, heat resistance, and chemical resistance, and therefore, clothing, bedding, bedding, industrial materials, civil engineering materials, construction materials, agricultural / horticultural materials, medical materials, hygiene materials, daily life related materials. It can be used for a wide range of applications including.

【0002】[0002]

【従来の技術】不織布は、従来の繊維集合体である織編
物に比較して、複合化に適していること、生産速度の大
きいこと、製造コストが低いことなどを利点として広く
用いられている。特に近年は、高度な不織布製造技術の
発展により、多種多様な材質、形状の製品が製造可能と
なり、レーヨン、ポリエステル、ポリプロピレン、ナイ
ロンをはじめとして種々の繊維素材から種々の不織布製
品が製造されている。ただし、従来素材より製造した不
織布は、例えばレーヨンは力学特性、特に湿潤時の強度
に劣る、ポリエステルは吸水性に乏く耐アルカリ性に劣
る、ポリプロピレンは低熱性に劣る、ナイロンは耐酸性
に劣る上に伸度が大きいなど、素材の特性に起因してい
ずれも弱点を有し、用途が限定されている。したがっ
て、より広範な用途に使用可能な不織布の開発が望まれ
ていた。
2. Description of the Related Art Nonwoven fabrics are widely used because of their advantages such as suitable for compounding, high production speed, and low production cost, as compared with conventional woven and knitted fabrics. . Particularly in recent years, due to the development of advanced nonwoven fabric manufacturing technology, products of various materials and shapes can be manufactured, and various nonwoven products are manufactured from various fiber materials including rayon, polyester, polypropylene and nylon. . However, non-woven fabrics manufactured from conventional materials, for example, rayon is inferior in mechanical properties, especially strength when wet, polyester is inferior in water absorption and inferior in alkali resistance, polypropylene is inferior in low heat resistance, and nylon is inferior in acid resistance. Due to the characteristics of the material, such as high elongation, they all have weak points and their applications are limited. Therefore, it has been desired to develop a nonwoven fabric that can be used in a wider range of applications.

【0003】[0003]

【発明が解決しようとする課題】本発明の目的は、力学
的性質、耐熱性、耐薬品性のバランスに優れ、従来公知
の不織布に比較して広範な用途に使用可能な新規な不織
布を提供することにある。
An object of the present invention is to provide a novel non-woven fabric which has an excellent balance of mechanical properties, heat resistance and chemical resistance and which can be used in a wide range of applications as compared with conventionally known non-woven fabrics. To do.

【0004】[0004]

【課題を解決するための手段】本発明者らは、特定の熱
可塑性ポリマーからなる繊維より製造される不織布が上
記問題点を解決しうることを見出し、さらに鋭意検討を
継続した結果、本発明を完成するに至った。すなわち本
発明は、下記一般式(1)で示される繰り返し単位から
実質的になるポリマーよりなる繊維を少なくとも60重
量%含み、目付が10g/m2 以上である不織布であ
る。
The present inventors have found that a non-woven fabric made of fibers made of a specific thermoplastic polymer can solve the above-mentioned problems, and as a result of further earnest studies, the present invention Has been completed. That is, the present invention is a non-woven fabric containing at least 60% by weight of a fiber consisting of a polymer substantially composed of a repeating unit represented by the following general formula (1) and having a basis weight of 10 g / m 2 or more.

【化2】 Embedded image

【0005】本発明の不織布を構成する主たる繊維素材
である、一般式(1)で示されるポリマーとは、実質的
に高分子中のCO単位がオレフィン由来の単位と交互に
配列されているコポリマーのことである。すなわち高分
子鎖中で各CO単位の隣に、例えばエチレンのようなオ
レフィンの単位が一つずつ位置する構造をとる。該コポ
リマーは、一酸化炭素と特定の1種のオレフィンとの真
のコポリマーであっても、あるいはまた一酸化炭素と2
種以上のオレフィンとのコポリマーであっても良い。
The polymer represented by the general formula (1), which is the main fiber material constituting the nonwoven fabric of the present invention, is a copolymer in which CO units in the polymer are substantially arranged alternately with olefin-derived units. That is. That is, it has a structure in which one olefin unit such as ethylene is located next to each CO unit in the polymer chain. The copolymer may be a true copolymer of carbon monoxide and one particular olefin, or alternatively carbon monoxide and diolefins.
It may be a copolymer with one or more olefins.

【0006】一般式(1)で示されるポリマーに使用す
ることが可能なオレフィン系モノマーとしては、エチレ
ン、プロピレン、ブテン、ペンテン、ヘキセン、ヘプテ
ン、オクテン、ノネン、デセン、ドデセン、スチレン、
メチルアクリレート、メチルメタクリレート、ビニルア
セテート、ウンデセン酸、ウンデセノール、6−クロロ
ヘキセン、N−ビニルピロリドン、およびスルニルホス
ホン酸のジエチルエステルなどが挙げられるが、力学特
性、耐熱性などの点からエチレンを主体としたポリマー
が好ましい。
The olefinic monomers which can be used in the polymer represented by the general formula (1) include ethylene, propylene, butene, pentene, hexene, heptene, octene, nonene, decene, dodecene, styrene,
Examples include methyl acrylate, methyl methacrylate, vinyl acetate, undecenoic acid, undecenol, 6-chlorohexene, N-vinylpyrrolidone, and diethyl ester of sulnylphosphonic acid, but mainly ethylene from the viewpoint of mechanical properties and heat resistance. Are preferred.

【0007】エチレンとエチレン以外のオレフィンとを
併用する場合、エチレンとエチレン以外のオレフィンと
のモル比は4/1以上であることが好ましい。4/1未
満の場合、ポリマーの融点が200℃以下となり、用途
によっては耐熱性が不十分となる場合がある。最終的に
得られる不織布の耐熱性および力学的性能の点から、エ
チレンと他のオレフィン系モノマーのモル比は8/1以
上であることがより好ましい。
When ethylene and an olefin other than ethylene are used in combination, the molar ratio of ethylene to an olefin other than ethylene is preferably 4/1 or more. When it is less than 4/1, the melting point of the polymer is 200 ° C. or lower, and the heat resistance may be insufficient depending on the application. From the viewpoint of heat resistance and mechanical performance of the finally obtained nonwoven fabric, the molar ratio of ethylene to other olefinic monomer is more preferably 8/1 or more.

【0008】該当する交互コポリマー、触媒および製造
方法は、例えばヨーロッパ特許公開第121965号、
第213671号、第229408号、および米国特許
第3914391号から公知である。また、遊離基触媒
を使用して製造される交互構造を持たないその他公知の
エチレン/COコポリマーの使用は本発明では考慮され
ない。
Corresponding alternating copolymers, catalysts and methods of preparation are described, for example, in EP-A-121965,
Known from 213671, 229408, and US Pat. No. 3,914,391. Also, the use of other known ethylene / CO copolymers that do not have alternating structures made using free radical catalysts are not considered in the present invention.

【0009】本発明で使用するコポリマーの重合度は、
m−クレゾール中60℃で測定した溶液粘度(LVN)
が0.5〜10.0dl/gの範囲内であることが好ま
しい。LVNが0.5dl/g未満の場合、最終的に得
られる不織布の力学強度が不十分となる場合があり、
0.7dl/g以上であることがより好ましい。一方、
LVNが10.0dl/gを越える場合、繊維化時の溶
融粘度、溶液粘度が高くなりすぎて紡糸性が不良となる
おそれがあり、5.0dl/g未満であることがより好
ましい。不織布製造の工程性および最終的に得られる不
織布の力学的性質の点から、LVNは0.8〜4.0d
l/gの範囲内であることがより好ましい。
The degree of polymerization of the copolymer used in the present invention is
Solution viscosity (LVN) measured at 60 ° C in m-cresol
Is preferably in the range of 0.5 to 10.0 dl / g. If the LVN is less than 0.5 dl / g, the mechanical strength of the finally obtained nonwoven fabric may be insufficient,
It is more preferably 0.7 dl / g or more. on the other hand,
When the LVN is more than 10.0 dl / g, the melt viscosity and the solution viscosity at the time of fiberizing may be too high and the spinnability may be poor, and it is more preferably less than 5.0 dl / g. From the viewpoint of processability of nonwoven fabric production and mechanical properties of the finally obtained nonwoven fabric, LVN is 0.8 to 4.0 d.
It is more preferably within the range of 1 / g.

【0010】本発明の不織布を製造するための方法は特
に限定されず、従来公知の方法で製造可能であり、所望
の不織布形態、性能に応じて適宜選択して採用すること
ができる。すなわち、あらかじめ繊維化したポリマーを
不織布の形態に加工する方法として、湿式法や、乾式法
(エアレイ法、カード法など)でウェブを形成し、その
後、接着および/または絡合して不織布とする通常の方
法が挙げられる。また、繊維化工程と不織布製造工程を
直結して製造する方法としては、スパンボンド法やメル
トブローン法などが挙げられる。
The method for producing the nonwoven fabric of the present invention is not particularly limited, and it can be produced by a conventionally known method, and can be appropriately selected and used according to the desired form and performance of the nonwoven fabric. That is, a web is formed by a wet method or a dry method (such as an air lay method or a card method) as a method of processing a polymer which has been made into a fiber in advance into a non-woven fabric, and then bonded and / or entangled to form a non-woven fabric. An ordinary method can be mentioned. Further, as a method for directly connecting the fiberizing step and the non-woven fabric manufacturing step to manufacture, a spun bond method, a melt blown method and the like can be mentioned.

【0011】あらかじめ繊維化したポリマーを不織布の
形態に加工する場合、その第1段階である繊維化方法は
特に限定されないが、一般的には溶融紡糸法または溶液
紡糸法が採用される。
When the pre-fibrous polymer is processed into a non-woven fabric, the fibrating method as the first step is not particularly limited, but generally a melt spinning method or a solution spinning method is adopted.

【0012】溶融紡糸法を採用する場合、例えば特開平
1−124617号公報に記載の方法に従って、ポリマ
ーを最低(T+20)℃、好ましくは(T+40)℃の
温度で溶融紡糸し、次いで最高(T−10)℃、好まし
くは(T−40)℃の温度で好ましくは3倍以上、より
好ましくは7倍以上の延伸比で延伸する方法により容易
に所望の繊維が製造可能である(ただしTは上記ポリマ
ーの結晶融点である)。
When the melt spinning method is adopted, the polymer is melt-spun at a temperature of at least (T + 20) ° C., preferably (T + 40) ° C., and then at the maximum (T) according to the method described in JP-A-1-124617. The desired fiber can be easily produced by a method of drawing at a temperature of −10) ° C., preferably (T-40) ° C., preferably with a draw ratio of 3 times or more, more preferably 7 times or more (where T is It is the crystalline melting point of the polymer).

【0013】また、溶液紡糸法を採用する場合、例えば
特開平2−112413号公報に記載の方法に従って、
ポリマーをヘキサフルオロイソプロパノール、m−クレ
ゾールなどに0.25〜20重量%、好ましくは0.5
〜10重量%の濃度で溶解させ、紡糸ノズルより押し出
して繊維化し、次いでトルエン、エタノール、イソプロ
パノール、n−ヘキサン、イソオクタン、アセトン、メ
チルエチルケトンなどの非溶剤浴、好ましくはアセトン
浴中で溶剤を除去、洗浄して紡糸原糸を得、さらに(T
−100)〜(T+10)℃、好ましくは(T−50)
〜T℃で延伸して最終的に所望の繊維を得ることができ
る(ただしTは上記ポリマーの結晶融点である)。
When the solution spinning method is adopted, for example, according to the method described in Japanese Patent Laid-Open No. 2-112413.
The polymer is added to hexafluoroisopropanol, m-cresol or the like in an amount of 0.25 to 20% by weight, preferably 0.5.
Dissolve at a concentration of -10 wt%, extrude from a spinning nozzle to form fibers, and then remove the solvent in a non-solvent bath such as toluene, ethanol, isopropanol, n-hexane, isooctane, acetone, methyl ethyl ketone, preferably an acetone bath, It is washed to obtain a spun yarn, and (T
-100) to (T + 10) ° C, preferably (T-50)
It can be drawn at ˜T ° C. to finally obtain the desired fiber, where T is the crystalline melting point of the polymer.

【0014】また、使用するノズルの形状を選択するこ
とによって円形のみならず、楕円形、三〜八葉形等の多
葉形;三〜八角形等の多角形;T型;Y型;U型などの
異形の任意の断面形状を有することができ、さらに中実
繊維に限られることなく中空繊維であってもよい。ま
た、繊度および繊維の長さは、不織布の製造方法や性能
に応じて適宜選択することができる。
Further, by selecting the shape of the nozzle to be used, not only a circular shape but also an oval shape, a multilobe shape such as a tri-octagonal shape, a polygonal shape such as a tri-octagonal shape, a T type, a Y type, and a U type. It may have an arbitrary cross-sectional shape such as a mold, and is not limited to solid fibers, but may be hollow fibers. Further, the fineness and the length of the fiber can be appropriately selected according to the manufacturing method and performance of the nonwoven fabric.

【0015】繊維は上述のポリマ−単独繊維でもよく、
上述のポリマ−と他のポリマーとが複合化された複合繊
維でもよい。複合化する場合、その形態は特に限定され
ることはなく、例えば芯鞘型、張り合わせ型(サイドバ
イサイド)、海島型、ランダム型などの任意の形態を採
用することができる。また、かかる複合繊維は叩解法、
水流絡合など任意の方法でフィブリル化された状態でも
よい。
The fibers may be the polymer-only fibers described above,
It may be a composite fiber in which the above-mentioned polymer and another polymer are composited. In the case of compounding, the form is not particularly limited, and any form such as a core-sheath type, a laminated type (side by side), a sea-island type, a random type and the like can be adopted. In addition, such a composite fiber is a beating method,
It may be in a fibrillated state by any method such as hydroentanglement.

【0016】本発明の不織布を構成する繊維は、必要に
応じて他の添加物、例えば酸化防止剤、安定剤、加工助
剤、難燃剤、蛍光漂白剤、顔料、無機微粒子などを必要
に応じて含有しても良い。これら添加物は、必要に応じ
てポリマーの重合時あるいは繊維化時に添加することが
できる。
The fibers constituting the nonwoven fabric of the present invention may optionally contain other additives such as antioxidants, stabilizers, processing aids, flame retardants, fluorescent bleaching agents, pigments and inorganic fine particles. May be included. These additives can be added at the time of polymerizing the polymer or at the time of fiber formation, if necessary.

【0017】不織布の製造方法において、ウェブの接着
および/または絡合方法としては、不織布の形態や性能
に応じて任意の方法を採用できるが、接着剤(ケミカル
バインダー)を使用するケミカルボンド法、加熱による
自己接着または熱融着繊維を使用するサーマルボンド
法、エアとバインダーで接着するエアレイ法、高圧水流
で絡合させるスパンレース法、針で交絡させるニードル
パンチ法、糸で縫い込むステッチボンド法などが挙げら
れる。
In the method for producing a non-woven fabric, as a method for adhering and / or entanglement of the web, any method can be adopted depending on the form and performance of the non-woven fabric, but a chemical bond method using an adhesive (chemical binder), Thermal bonding method using self-adhesion by heating or heat fusion fiber, air laying method by bonding with air and binder, spunlace method by entanglement with high pressure water flow, needle punch method by entanglement with needle, stitch bond method by sewing with thread And so on.

【0018】本発明の不織布は、上記した一般式(1)
で示される繰り返し単位から実質的になるポリマーより
なる繊維を少なくとも60重量%含むことを必須条件と
するが、一般式(1)で示される繰り返し単位から実質
的になるポリマーよりなる繊維の力学的性質、耐熱性、
耐薬品性などを不織布の形態で十分発揮させるには、含
有量は70重量%以上であることが好ましい。含有量が
60重量%未満の場合、所望の性能が得られないおそれ
がある。
The nonwoven fabric of the present invention has the above-mentioned general formula (1).
The essential requirement is to include at least 60% by weight of a fiber consisting of a polymer consisting essentially of the repeating unit represented by the formula (1), but the mechanical properties of the fiber consisting of a polymer consisting essentially of the repeating unit represented by the general formula (1): Properties, heat resistance,
In order to sufficiently exert chemical resistance and the like in the form of a nonwoven fabric, the content is preferably 70% by weight or more. If the content is less than 60% by weight, the desired performance may not be obtained.

【0019】また本発明の不織布は、目付が10g/m
2 以上であることを必須条件とする。目付は不織布の形
態、要求性能に応じて任意に設定することが可能である
が、10g/m2 未満の場合、不織布の力学強度が不十
分となるおそれがある。
The nonwoven fabric of the present invention has a basis weight of 10 g / m.
It is a prerequisite that it is 2 or more. The basis weight can be arbitrarily set according to the form of the nonwoven fabric and the required performance, but if it is less than 10 g / m 2 , the mechanical strength of the nonwoven fabric may be insufficient.

【0020】本発明の不織布は、同一および/または他
種の不織布と積層されていてもよい。その場合の不織布
の目付とは、総合目付量で示す。また本発明の不織布は
織物と積層して使用してもよい。
The nonwoven fabric of the present invention may be laminated with the same and / or other types of nonwoven fabric. In that case, the basis weight of the nonwoven fabric is indicated by the total basis weight. The nonwoven fabric of the present invention may be used by laminating it with a woven fabric.

【0021】本発明の不織布は力学的性質、耐熱性、耐
薬品性のバランスに優れることから、従来の不織布に比
較して広範な用途に使用可能である。以下にその例を示
す。例えば、衣料用途としては芯地(紳士、婦人子供
服、ブラウス、シャツ、コート類、帯しん、ファンデー
ション、帽材)、肩パット、中入綿(防寒ジャケット、
ナイトガウン、キルティングウェア)、保護着、下着、
イベントジャンパーなどが挙げられ、寝装寝具用途では
毛布、シーツ、ベッドカバー、枕カバー、布団、座布団
など;家具・インテリア用途ではカーペット、カーテ
ン、壁紙、家具緩衝材、音響機材、成形家具シートな
ど;靴材用途では甲皮、裏皮、中敷き、滑り止め、先し
ん、ブーツライニング、補強材など;鞄材用途では内張
り材、手紐しん、レザーのパッキング材など;空調用材
用途では液体フィルター、気体フィルター、集塵フィル
ターなど;ワイパー用途ではリントリーワイパー、各種
ワイピングクロスなど;エレクトロニクス用途では絶縁
材(テープ、電池セパレーター、フロッピーディスクラ
イナーなど);印刷物基材用途では地図、カレンダー、
ラベル、タグ、封筒、ステンシルなど;包装・袋物資材
用途では封筒、ショッピング袋、菓子包装、ティーバッ
グなど;産業資材用途では研磨剤、油吸着剤、レザー基
布、各種テープ基材など;土木資材用途ではアスファル
トオーバーレイ、土壌安定剤、ろ過用資材、貯水用アン
ダーライナー、浸食防止材、泥砂防止材、補強材、植生
マット、コンクリート養生シート、人工芝など;建設資
材用途では床材、遮音材、パッキング、壁紙、建具な
ど;農業・園芸用資材用途では遮熱材、風除け材、日除
け材、果実保護材、食害防止材、育苗材、福種基材、各
種被覆材など;包装材料用途ではカイロシート、手袋な
ど;キッチン・洗濯用品用途ではタオル、おしぼり、た
わし、テーブルクロス、エプロン、キッチン手袋、クリ
ーニングソフナーなど;マット用途ではアイロンマッ
ト、ランチョンマットなど;コスメティックワイパー用
途では化粧用パフ、ガーゼ、ワイピングクロス(靴磨
き、床磨き、眼鏡拭き等)など;その他家庭用雑貨用途
では各種吸水紙、手芸洋裁用材料、のれん、リボン類、
ホビー用品、トイレタリー用品、クッキング用品、アク
セサリー、ブックカバー、テント、カレンダー、電話消
毒用フィルター、文房具材など;医療資材用途では手術
用マスク、ガウン、キャップ、CSRラップ、アンダー
パット、包装パック、ガーゼ、ベッドシーツ、包帯、眼
帯、サージカルテープ、死衣、パップ材基布、花粉症マ
スク、粘着テープなど;衛生材料用途ではサニタリーナ
プキン、パンティーシールド、成人用おむつ、ベビーお
むつ、失禁者パッドなどが挙げられる。
Since the nonwoven fabric of the present invention has an excellent balance of mechanical properties, heat resistance and chemical resistance, it can be used in a wide range of applications as compared with conventional nonwoven fabrics. An example is shown below. For example, for clothing, interlining (men's, women's children's clothing, blouses, shirts, coats, obi belts, foundations, cap materials), shoulder pads, cotton padding (cold-proof jacket,
Nightgown, quilting wear), protective clothing, underwear,
Examples include event jumpers, blankets, sheets, bedspreads, pillowcases, duvets and cushions for bedding and bedding applications; carpets, curtains, wallpaper, furniture cushioning materials, audio equipment, molded furniture sheets for furniture and interior applications; For shoe applications, uppers, linings, insoles, anti-slip, toecaps, boot linings, reinforcing materials, etc .; for bag applications, lining materials, straps, leather packing materials, etc .; for air conditioner applications, liquid filters, gas Filters, dust collection filters, etc .; Lintley wipers, various wiping cloths, etc. for wipers; Insulation materials (tapes, battery separators, floppy disk liners, etc.) for electronics; Maps, calendars, etc. for printed materials
Labels, tags, envelopes, stencils, etc .; envelopes, shopping bags, confectionery packaging, tea bags, etc. for packaging and bag material applications; abrasives, oil adsorbents, leather base cloths, various tape substrates, etc. for industrial material applications; civil engineering materials Asphalt overlays, soil stabilizers, filtration materials, water storage underliners, erosion prevention materials, mud sand prevention materials, reinforcing materials, vegetation mats, concrete curing sheets, artificial grass, etc. for applications; floor materials, sound insulation materials for construction materials applications, etc. Packing, wallpaper, fittings, etc .; Heat shields, windbreaks, sunshades, fruit protectors, food damage preventives, seedlings, euphoric bases, various coatings, etc. for agricultural and horticultural materials; Cairo for packaging materials Sheets, gloves, etc .; towels, towels, towels, tablecloths, aprons, kitchen gloves, cleaning softeners for kitchen and laundry products ; For iron mats and place mats for mats; For cosmetic wipes, cosmetic puffs, gauze, wiping cloths (shoe polish, floor polish, eyeglass wipe, etc.); For other household miscellaneous items, various water absorbent papers, handicraft dressing materials , Goodwill, ribbons,
Hobby supplies, toiletries, cooking supplies, accessories, book covers, tents, calendars, telephone sanitizing filters, stationery materials, etc .; surgical masks, gowns, caps, CSR wraps, underpads, packaging packs, gauze, etc. Bed sheets, bandages, eye patches, surgical tapes, clothing, base cloths for paps, hay fever masks, adhesive tapes, etc .; sanitary napkins, panty shields, adult diapers, baby diapers, incontinence pads, etc. for sanitary materials.

【0022】[0022]

【実施例】以下、実施例により本発明を詳述するが、本
発明はこれら実施例により何等限定されるものではな
い。なお、実施例中の各測定値は以下の方法により測定
した値である。 (1)ポリマーの溶液粘度(LVN) ポリマーをm−クレゾールに0.5g/dlの濃度で溶
解させ、ウベローデ型粘度計を使用して60℃で測定し
た。
EXAMPLES The present invention will be described below in detail with reference to examples, but the present invention is not limited to these examples. In addition, each measured value in an Example is a value measured by the following method. (1) Solution Viscosity of Polymer (LVN) The polymer was dissolved in m-cresol at a concentration of 0.5 g / dl and measured at 60 ° C. using an Ubbelohde viscometer.

【0023】(2)不織布の強度測定 JISL1096に準拠した方法で測定した。(2) Measurement of strength of non-woven fabric It was measured by a method according to JIS L1096.

【0024】(3)不織布の耐薬品性評価 (3−1)耐酸性評価 10重量%硫酸水溶液中、95℃、浴比1:100の条
件で50時間加熱処理し、(2)に記載の方法により強
度を測定し、処理前後の強度から強度保持率を算出し
た。 (3ー2)耐アルカリ性評価 10重量%水酸化ナトリウム水溶液中、95℃、浴比
1:100の条件で50時間加熱処理し、(2)に記載
の方法により強度を測定し、処理前後の強度から強度保
持率を算出した。
(3) Evaluation of chemical resistance of non-woven fabric (3-1) Evaluation of acid resistance Heat treatment was carried out in a 10 wt% sulfuric acid aqueous solution at 95 ° C. and a bath ratio of 1: 100 for 50 hours, and the heat treatment was performed according to (2). The strength was measured by the method, and the strength retention rate was calculated from the strength before and after the treatment. (3-2) Alkali resistance evaluation Heat treatment was performed in a 10 wt% sodium hydroxide aqueous solution at 95 ° C. under a bath ratio of 1: 100 for 50 hours, and the strength was measured by the method described in (2). The strength retention rate was calculated from the strength.

【0025】参考例1(溶融紡糸法による繊維の製造) LVN1.1dl/gのプロピレンを7モル%共重合し
たエチレン/プロピレン/一酸化炭素ポリマーを紡糸温
度275℃で紡糸し、次いでプレート温度200℃で6
倍に延伸した後、熱固定、捲縮付与、切断して、単繊維
繊度2.0デニール、長さ51mmの短繊維を得た。
Reference Example 1 (Production of Fiber by Melt Spinning Method) An ethylene / propylene / carbon monoxide polymer obtained by copolymerizing 7 mol% of LVN 1.1 dl / g propylene was spun at a spinning temperature of 275 ° C., and then a plate temperature of 200. 6 at ℃
After being double-stretched, heat setting, crimping, and cutting were performed to obtain short fibers having a single fiber fineness of 2.0 denier and a length of 51 mm.

【0026】参考例2(溶液紡糸法による繊維の製造) LVN2.0dl/gのエチレン/一酸化炭素ポリマー
をヘキサフルオロイソプロパノールに1%濃度で溶解
し、20℃で直径1.75mmのノズルより押し出して
繊維化し、アセトン浴を通過させてヘキサフルオロイソ
プロパノールを除去し、次いでプレート温度265℃で
26倍に延伸した後、熱固定、捲縮付与、切断して、単
繊維繊度4.5デニール、長さ51mmの短繊維を得
た。
Reference Example 2 (Production of Fiber by Solution Spinning Method) LVN 2.0 dl / g ethylene / carbon monoxide polymer was dissolved in hexafluoroisopropanol at a concentration of 1% and extruded from a nozzle having a diameter of 1.75 mm at 20 ° C. Hexafluoroisopropanol is removed by passing it through an acetone bath and then stretched 26 times at a plate temperature of 265 ° C., followed by heat setting, crimping, and cutting to obtain a single fiber fineness of 4.5 denier, long. 51 mm short fibers were obtained.

【0027】実施例1 参考例1で得られた繊維に熱融着性繊維[(株)クラレ
製ソフィットN−710タイプ、単繊維繊度2デニー
ル、長さ51mm]を20重量%混合し、その後カード
を通して目付約50g/m2 のウェブを作成した。次い
で高圧噴射主流を当てて絡合処理を行った。さらに風乾
後、オートドライヤーにて150℃、1分間の条件で熱
処理することにより不織布を得た。得られた不織布の強
度および耐薬品性評価結果を表1に示す。
Example 1 20% by weight of the heat-fusible fiber [Sofit N-710 type manufactured by Kuraray Co., Ltd., single fiber fineness 2 denier, length 51 mm] was mixed with the fiber obtained in Reference Example 1 and thereafter. A web having a basis weight of about 50 g / m 2 was made through the card. Then, a high-pressure jet main stream was applied to perform entanglement treatment. Further, after air-drying, a non-woven fabric was obtained by heat treatment with an auto dryer at 150 ° C. for 1 minute. Table 1 shows the strength and chemical resistance evaluation results of the obtained nonwoven fabric.

【0028】実施例2 参考例2で得られた繊維をカードおよびランダムウエバ
ーを通して繊維ウェブとし、金網上に乗せてノズルから
高圧噴射水流を当てて繊維絡合処理を行うと同時に穴あ
けを施し、さらにカレンダーを通過させて平均目付80
g/m2 、見掛け密度1.46g/cm3 の繊維絡合不
織布を得た。得られた不織布の強度および耐薬品性評価
結果を表1に示す。
Example 2 The fiber obtained in Reference Example 2 was passed through a card and a random webber to form a fiber web, which was placed on a wire mesh and subjected to high-pressure jet water flow from a nozzle to carry out fiber entanglement treatment, and at the same time punched. Average weight 80 after passing through the calendar
A fiber-entangled nonwoven fabric having a g / m 2 and an apparent density of 1.46 g / cm 3 was obtained. Table 1 shows the strength and chemical resistance evaluation results of the obtained nonwoven fabric.

【0029】実施例3 参考例1と同様にしてプロピレンを7モル%共重合した
エチレン/プロピレン/一酸化炭素ポリマーを用い、ノ
ズル孔径0.4mm、ノズル温度290℃の条件で、温
度290℃、流量20Nm3 の加熱空気とともにコンベ
ア上に集積し、平均目付50g/cm2 、平均繊維径
3.6ミクロンのメルトブローン不織布を得た。得られ
た不織布の強度および耐薬品性評価結果を表1に示す。
Example 3 Using ethylene / propylene / carbon monoxide polymer obtained by copolymerizing 7 mol% of propylene in the same manner as in Reference Example 1, the nozzle hole diameter was 0.4 mm, the nozzle temperature was 290 ° C., and the temperature was 290 ° C. The melt blown non-woven fabric having an average basis weight of 50 g / cm 2 and an average fiber diameter of 3.6 microns was obtained by accumulating on a conveyor together with heated air having a flow rate of 20 Nm 3 . Table 1 shows the strength and chemical resistance evaluation results of the obtained nonwoven fabric.

【0030】比較例1 実施例1において、参考例1で得られた繊維の代わり
に、フェノールとテトラクロロエタンの等重量混合溶媒
中、30℃で測定した極限粘度0.60dl/g、単繊
維繊度2.0デニール、長さ51mmのポリエステルス
テープルを使用した以外は同様にして、対応する不織布
を得た。得られた不織布の強度および耐薬品性評価結果
を表1に示す。本発明の不織布は酸、アルカリに対して
耐性があることがわかる。
Comparative Example 1 In Example 1, instead of the fiber obtained in Reference Example 1, an intrinsic viscosity of 0.60 dl / g and a single fiber fineness measured at 30 ° C. in an equal weight mixed solvent of phenol and tetrachloroethane. A corresponding non-woven fabric was obtained in the same manner except that polyester staple having a denier of 2.0 and a length of 51 mm was used. Table 1 shows the strength and chemical resistance evaluation results of the obtained nonwoven fabric. It can be seen that the nonwoven fabric of the present invention is resistant to acids and alkalis.

【0031】比較例2 実施例1において、参考例1で得られた繊維の代わり
に、0.2g/dlの濃度、硫酸中30℃で測定した還
元粘度1.10dl/g、単繊維繊度2.0デニール、
長さ51mmのナイロン6ステープルを使用した以外は
同様にして、対応する不織布を得た。得られた不織布の
強度および耐薬品性評価結果を表1に示す。本発明の不
織布は酸、アルカリに対して耐性があることがわかる。
Comparative Example 2 In Example 1, instead of the fiber obtained in Reference Example 1, a concentration of 0.2 g / dl, a reduced viscosity of 1.10 dl / g measured at 30 ° C. in sulfuric acid, and a single fiber fineness of 2 were obtained. 0.0 denier,
A corresponding nonwoven fabric was obtained in the same manner except that nylon 6 staple having a length of 51 mm was used. Table 1 shows the strength and chemical resistance evaluation results of the obtained nonwoven fabric. It can be seen that the nonwoven fabric of the present invention is resistant to acids and alkalis.

【0032】[0032]

【表1】 [Table 1]

【0033】[0033]

【発明の効果】本発明の不織布は、力学的性質、耐熱
性、耐薬品性のバランスに非常に優れ、従来公知の不織
布に比較して広範な用途に使用可能である。
The non-woven fabric of the present invention has a very good balance of mechanical properties, heat resistance and chemical resistance, and can be used in a wider range of applications than conventionally known non-woven fabrics.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】下記一般式(1)で示される繰り返し単位
から実質的になるポリマーよりなる繊維を少なくとも6
0重量%含み、目付が10g/m2 以上である不織布。 【化1】
1. At least 6 fibers composed of a polymer substantially consisting of a repeating unit represented by the following general formula (1):
A non-woven fabric containing 0% by weight and having a basis weight of 10 g / m 2 or more. Embedded image
JP8143890A 1996-06-06 1996-06-06 Nonwoven fabric Pending JPH09324355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8143890A JPH09324355A (en) 1996-06-06 1996-06-06 Nonwoven fabric

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8143890A JPH09324355A (en) 1996-06-06 1996-06-06 Nonwoven fabric

Publications (1)

Publication Number Publication Date
JPH09324355A true JPH09324355A (en) 1997-12-16

Family

ID=15349426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8143890A Pending JPH09324355A (en) 1996-06-06 1996-06-06 Nonwoven fabric

Country Status (1)

Country Link
JP (1) JPH09324355A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006351733A (en) * 2005-06-14 2006-12-28 Asahi Kasei Chemicals Corp Capacitor and electrode separator for capacitor
JP2007013010A (en) * 2005-07-01 2007-01-18 Asahi Kasei Chemicals Corp Capacitor and electrode separator therefor
CN104640438A (en) * 2012-09-19 2015-05-20 三井化学株式会社 Covering material for agricultural use, and method for producing same
US20210054536A1 (en) * 2018-01-18 2021-02-25 Toray Industries, Inc. Dyeable polyolefin fiber and fibrous structure comprising same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006351733A (en) * 2005-06-14 2006-12-28 Asahi Kasei Chemicals Corp Capacitor and electrode separator for capacitor
JP2007013010A (en) * 2005-07-01 2007-01-18 Asahi Kasei Chemicals Corp Capacitor and electrode separator therefor
CN104640438A (en) * 2012-09-19 2015-05-20 三井化学株式会社 Covering material for agricultural use, and method for producing same
US20210054536A1 (en) * 2018-01-18 2021-02-25 Toray Industries, Inc. Dyeable polyolefin fiber and fibrous structure comprising same

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