JPS62238822A - Modified polyester fiber - Google Patents
Modified polyester fiberInfo
- Publication number
- JPS62238822A JPS62238822A JP8093886A JP8093886A JPS62238822A JP S62238822 A JPS62238822 A JP S62238822A JP 8093886 A JP8093886 A JP 8093886A JP 8093886 A JP8093886 A JP 8093886A JP S62238822 A JPS62238822 A JP S62238822A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- fluoropolymer
- polyethylene terephthalate
- intrinsic viscosity
- composition obtained
- 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
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 37
- 229920000728 polyester Polymers 0.000 title abstract description 5
- -1 polyethylene terephthalate Polymers 0.000 claims abstract description 26
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 23
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 23
- 229920002313 fluoropolymer Polymers 0.000 claims abstract description 18
- 239000004811 fluoropolymer Substances 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 10
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229920001577 copolymer Polymers 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 4
- 239000004416 thermosoftening plastic Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 238000004898 kneading Methods 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000004065 semiconductor Substances 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 4
- 239000003814 drug Substances 0.000 abstract description 3
- 235000013305 food Nutrition 0.000 abstract description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- 229940079593 drug Drugs 0.000 abstract 1
- 239000004744 fabric Substances 0.000 abstract 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 abstract 1
- 238000009987 spinning Methods 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000000306 component Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000002657 fibrous material Substances 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002216 antistatic agent Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000002074 melt spinning Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 206010011878 Deafness Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 231100000895 deafness Toxicity 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 208000016354 hearing loss disease Diseases 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は平滑性にすぐれ、かっ血］化学薬品性の改良さ
れたポリエステル繊維に関する。精密工業、半導体、医
薬品、食品などの製造工程の作業環境は清澄である事が
要求され、且つ穏々の化学薬品が使用される。このよう
な環境下で使用される作業衣にも、それに適したものが
要求される。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a polyester fiber with excellent smoothness and improved chemical resistance. The working environment of manufacturing processes in precision industries, semiconductors, pharmaceuticals, foods, etc. is required to be clean and mild chemicals are used. Work clothes used in such environments are also required to be suitable.
本発明はそれらの作業衣の繊維素材に関するものである
。The present invention relates to textile materials for these working clothes.
（従来の技術）
精密工業、半導体、医薬品などの製造工程で作業衣に要
求される性能は、（６）塵通過阻止能が高いこと、（ｃ
４ｍが付着し難く落易いこと、ぐ→廃聾性が低いこと、
に）制電性が優れていること、（噂耐薬品性に優れてい
ることなど総合的に優れた性能が要求される。これらの
性能は、はとんどの項目が繊維素材として持つべき性能
である。従来これらの繊維素材としては、例えば特開昭
５５−８０４８５号公報の実施例に示されるようにポリ
エチレンテレフタレートｍ維が用いられているが、これ
は発塵性及び耐化学薬品性の見地から不満足なものであ
る。繊維中にポリアルキレングリコール等ヲ制電剤とし
て混練した場合、その欠点は更に助長される。即ちポリ
エチレンテレフタレートは着用や洗濯時の摩擦によって
繊維が破断、フィブリル化、脱落し塵埃を発生させる傾
向が強いという欠点がある。又特に半導体等の製造工程
では強酸が使用されるが、それらに対する耐性が低く繊
維の破断、フィブリル化、脱落し易いという欠点がある
。(Prior art) Performance required for work clothes in the manufacturing processes of precision industries, semiconductors, pharmaceuticals, etc. are (6) high ability to prevent dust passage;
4m is difficult to stick to and falls off easily, and has low deafness.
(2) Excellent anti-static properties (2) and excellent chemical resistance (rumored to be excellent). Conventionally, polyethylene terephthalate m fibers have been used as these fiber materials, as shown in the example of JP-A No. 55-80485, but these fibers have good dust generation and chemical resistance. This is unsatisfactory from a viewpoint.If polyalkylene glycol or the like is kneaded into the fibers as an antistatic agent, this disadvantage will be further exacerbated.In other words, polyethylene terephthalate can cause fibers to break, fibrillate, and become fibrillated due to friction when worn or washed. It has the disadvantage that it has a strong tendency to fall off and generate dust.Also, strong acids are used especially in the manufacturing process of semiconductors, etc., and it has a disadvantage that it has low resistance to them and is prone to fiber breakage, fibrillation, and falling off.
（発明が解決しようとする問題点）
本発明の目的は、平滑性に優れ、且つ耐化学薬品性の改
善されたポリエステル繊維を提供するにある。(Problems to be Solved by the Invention) An object of the present invention is to provide a polyester fiber that has excellent smoothness and improved chemical resistance.
（問題点を解決するための手段）
本発明の繊維は、固有粘度０．７０以上のポリ二本究明
において使用されるポリエチレンテレフタレートは、フ
ェノール／テトラクロルエタンＶ１混合溶媒中、２５°
Ｃにおける固有粘度が０．７以上、好ましくは１．０以
上のものであることが均一な、強度の高い繊維を得るの
（こ適している。繊維素材としてのポリエチレンテレフ
タレートは、通常固有粘度０．６２０〜０．６６０の範
囲のものが使用されているが、本発明においては、混線
する熱可塑性フッ素樹脂の溶融粘度が窩いため、紡糸出
来ないか或いはポリエチレンテレフタレート繊維中に偏
在し極めて襟度ムラの大きい、単糸切れや毛羽の多い繊
維しか得られない。従って、熱可塑性フッ素樹脂の溶融
粘度を基準としポリエチレンテレフタレートの固有粘度
を決定する必要がある。このためにポリエチレンテレフ
タレートの固有粘度は０．７０以上であることが必要で
あり、好ましくは０．８５〜１．２０のものがよい。更
にポリエチレンテレフタレートの固有粘度を上げ本発明
に使用する事が出来るが、相溶性の点から固有粘度を１
．３０以上に上げる必要はない。又このような高粘度ポ
リエチレンテレフタレートを得る為には、固相重合法が
主として採用されているが、その重合時間が極めて長時
間となり、経済的に不利となる。本発明で使用されるポ
リエチレンテレフタレートは、紡糸温度等の条件を適正
に選べば、一般的に使用されている溶融紡糸機を用いて
十分に紡糸出来る範囲のものである
本発明で使用するフッ素重合体としては２８０°Ｃ以下
の融点を有する熱可塑性のもので、次の構造単位を有す
るものが好ましく用いられる。(Means for Solving the Problems) The fiber of the present invention has an intrinsic viscosity of 0.70 or more.
In order to obtain uniform, strong fibers, it is preferable that the intrinsic viscosity at C is 0.7 or more, preferably 1.0 or more. Polyethylene terephthalate as a fiber material usually has an intrinsic viscosity of 0. 0.620 to 0.660, but in the present invention, the melt viscosity of the mixed thermoplastic fluororesin is low, so it cannot be spun, or it is unevenly distributed in the polyethylene terephthalate fiber, resulting in extremely high collar strength. Only fibers with large unevenness, single fiber breakage, and fluff can be obtained.Therefore, it is necessary to determine the intrinsic viscosity of polyethylene terephthalate based on the melt viscosity of the thermoplastic fluororesin.For this purpose, the intrinsic viscosity of polyethylene terephthalate is The intrinsic viscosity of polyethylene terephthalate is required to be 0.70 or more, preferably 0.85 to 1.20.Although it is possible to increase the intrinsic viscosity of polyethylene terephthalate and use it in the present invention, from the viewpoint of compatibility, viscosity 1
．． There is no need to raise it above 30. In order to obtain such high viscosity polyethylene terephthalate, solid phase polymerization is mainly employed, but the polymerization time is extremely long, which is economically disadvantageous. The polyethylene terephthalate used in the present invention can be sufficiently spun using a commonly used melt spinning machine if the spinning temperature and other conditions are appropriately selected. As for the coalescence, a thermoplastic material having a melting point of 280° C. or lower and having the following structural units is preferably used.
（Ｒ１，Ｒ２、Ｒ８、Ｒ４は水素、フッ素又は炭素原子
数１〜５の炭化水素基を示す）
熱可塑性フッ素重合体の好ましい具体例としては、ポリ
エチレンとテトラフルオルエチレンの共重合体、フッ化
ビニリデン樹脂等が挙げられるが、耐薬品性向上の目的
からはポリエチレンとテトラフルオルエチレンの共重合
体が望ましく使用される。更にフッ素原子比率の多いフ
ッ素重合体の場合、例えば６０重量％以上では、高温に
加熱しても溶融しないか又は極めて高粘性になり、ポリ
エチレンテレフタレートに混練する事が困難となること
が多い。例えばテトラフルオルエチレン等の超微粒子を
混練する方法も知られているが、繊維中に均一に分散さ
せる事は困難であり、糸の襟度ムラを発現する事が多く
本発明の目的を満足するものとはならないばかりか、ポ
リエチレンテレフタレートとの親和性が低いために粒子
の脱離、ポリエチレンテレフタレートの破断を生じる。(R1, R2, R8, R4 represent hydrogen, fluorine, or a hydrocarbon group having 1 to 5 carbon atoms) Preferred specific examples of thermoplastic fluoropolymers include copolymers of polyethylene and tetrafluoroethylene, fluorine Examples include vinylidene chloride resin, but a copolymer of polyethylene and tetrafluoroethylene is preferably used for the purpose of improving chemical resistance. Furthermore, in the case of a fluoropolymer with a high fluorine atom ratio, for example, if it is 60% by weight or more, it will not melt even when heated to a high temperature or will become extremely viscous, making it difficult to knead it into polyethylene terephthalate. For example, a method of kneading ultrafine particles such as tetrafluoroethylene is known, but it is difficult to disperse them uniformly into the fibers, and this often results in uneven necking of the yarn, which does not satisfy the purpose of the present invention. Not only does it not have a good affinity with polyethylene terephthalate, but it also causes detachment of particles and breakage of polyethylene terephthalate.
本発明のｖＡ維は、ポリエチレンテレフタレートとフッ
素重合体とを紡糸以前の任意の段階で静的又は動的に混
合し、常法によって溶融紡糸、延伸することによってた
やすく製造することが出来る。The vA fiber of the present invention can be easily produced by statically or dynamically mixing polyethylene terephthalate and a fluoropolymer at any stage prior to spinning, followed by melt spinning and drawing in a conventional manner.
この際組成物中のフッ素重合体の含有率が１．０〜６．
０重量％となるようにする事が望ましい。１．０重量％
より少ない量では、本発明の効果が十分に発現し難く、
一方５．０重量％を超えると製糸時の操業性が低下し又
得られる！１Ｉｌｌｉ＃ｌｉの物性低下を招くを混練し
た組成物を鞘成分とし、芯成分にはフッ素重合体を実質
的に含まない複合型繊維も好適である。フッ素重合体と
ポリエチレンテレフタレートとからなる組成物を鞘成分
にした複合繊維とする目的は、比較的高価なフッ素重合
体の構成比率を下げることにある。ａ＃！表面にフッ素
樹脂が存在することにより本発明の目的とする性能は十
分に達成され、しかもｗ４＃！全体の強度は高く保持さ
れるという利点がある。芯鞘型複合繊維の複合比は任意
であるが、例えば９／１〜１／２０（体積比）とする事
が出来る。At this time, the content of the fluoropolymer in the composition is 1.0 to 6.
It is desirable that the content be 0% by weight. 1.0% by weight
If the amount is smaller, the effect of the present invention will be difficult to fully express,
On the other hand, if it exceeds 5.0% by weight, the operability during spinning will decrease and the result will be worse! Composite fibers are also suitable, in which the sheath component is a kneaded composition that causes a decrease in physical properties, and the core component does not substantially contain a fluoropolymer. The purpose of creating a composite fiber whose sheath component is a composition consisting of a fluoropolymer and polyethylene terephthalate is to lower the composition ratio of the relatively expensive fluoropolymer. a#! Due to the presence of the fluororesin on the surface, the performance aimed at by the present invention is fully achieved, and w4#! It has the advantage that the overall strength is maintained high. Although the composite ratio of the core-sheath type composite fiber is arbitrary, it can be set to, for example, 9/1 to 1/20 (volume ratio).
ａｙｓの横断面の形状は円であることが外部摩擦による
欠損が少なく望ましいが、それに限定されるものではな
い。さらに本発明の繊維が制電剤、艶消し剤などを含ん
でもよい。It is preferable that the cross-sectional shape of the ays is circular, since this reduces defects due to external friction, but the shape is not limited thereto. Furthermore, the fiber of the present invention may contain an antistatic agent, a matting agent, and the like.
本発明により得られた繊維は、溶融粘度差の少ない、従
って相溶性の良いポリエチレンテレフタレートとフッ素
重合体を均一に混合する事により、フッ素重合体が繊維
内で繊維方向に伸びた形態となる。フッ素重合体の破断
強度がポリエチレンテレフタレートのそれにくらべて著
しく低い場合でも、本発明の方法に従えば全体の繊維と
しての破断強度低下は許容出来る範囲となる。ポリエチ
レンテレフタレートとフッ素重合体を更に均一に分散さ
せる為には、スタティクミキサー、二軸混練型エクスト
ルーダー等を使用する事が出来るが、その場合には溶融
粘度が高く従ってエクストルダ←及び紡糸ギヤポンプ吐
出圧が極めて高くなる事を考慮する必要がある。The fibers obtained according to the present invention have a form in which the fluoropolymer extends in the fiber direction within the fiber by uniformly mixing polyethylene terephthalate and a fluoropolymer, which have a small difference in melt viscosity and therefore have good compatibility. Even if the breaking strength of the fluoropolymer is significantly lower than that of polyethylene terephthalate, if the method of the present invention is followed, the reduction in the breaking strength of the entire fiber will be within an acceptable range. In order to disperse polyethylene terephthalate and fluoropolymer more uniformly, a static mixer, twin-screw extruder, etc. can be used, but in that case, the melt viscosity is high, so the extruder ← and spinning gear pump discharge are necessary. It is necessary to consider that the pressure will be extremely high.
（発明の効果）
本発明の改良ポリエステル繊維は、優れた平滑性と耐化
学薬品性を有しているものであり、精密工業、半導体、
医薬品食品などの製造現場で用いる無塵・無菌衣用途と
して最適である。また、その特性を生かした繊維素材と
して、作業服や産業資材等能の用途にも使用することが
できる。(Effects of the invention) The improved polyester fiber of the present invention has excellent smoothness and chemical resistance, and is used in precision industries, semiconductors,
It is ideal for dust-free and sterile clothing used at manufacturing sites for pharmaceutical and food products. Additionally, it can be used as a fiber material that takes advantage of its properties, such as work clothes and industrial materials.
（実施例）
以下、実施例によって本発明をさらに具体的に説明する
。繊維の性能は次の方法で評価した。(Examples) Hereinafter, the present invention will be explained in more detail with reference to Examples. The performance of the fibers was evaluated by the following method.
繊維強度：引張試験機を用い、当初のグリップ間隔１０
ｃｍ５引張速度１０ｃｍ／ｍｉｎで測定した。Fiber strength: Using a tensile tester, the initial grip spacing was 10
Measurement was performed at a cm5 tensile speed of 10 cm/min.
強度保持率（％）；薬品処理後の繊維強度／薬品処理前
の繊維強度Ｘ１００ ’餐餐奪会
与中
伸度保持率（％）：薬品処理後の繊維伸度／薬品処理前
の繊維強度Ｘ１００
摩擦係数：試料（フィラメント）はベンゼン／メタノー
ル＝ １．／１の混合液にてよく洗滌し、乾熱１２０°
Ｃで２０分間熱処理したものを用いる。摩擦体として梨
地（約１．５ｓ）硬質クロムメッキした直径約１ｃｍＱ
鋼九棒を用い、糸を摩擦体に１８００接触させながら８
００ｍ／分の速度で走行させｊｊＩ擦体の前後の張力Ｔ
１ ｓ Ｔ２を測定する。Ｔ、を１ｏｇになるように張
力調整器にて調整する。摩擦係数は式１によって算出す
る。Strength retention rate (%): Fiber strength after chemical treatment / Fiber strength before chemical treatment X100 Friction coefficient: Sample (filament) is benzene/methanol = 1. Wash well with a mixture of 1/1 and dry heat at 120°.
A sample heat-treated at C for 20 minutes is used. Friction body is matte finish (approx. 1.5s) and hard chrome plated, approximately 1cm in diameter.
Using a steel bar, touch the thread to the friction body for 1800 min.
The tension T before and after the jjI rubbing body is run at a speed of 00 m/min.
Measure 1 s T2. Adjust T with a tension adjuster so that it becomes 1 og. The friction coefficient is calculated using Equation 1.
実施例１〜８及び比較例１
固有粘度１．１７のポリエチレンテレフタレート（Ａ）
にフッ素重合体（テトラフルオルエチレン−エチレン共
重合体）〔Ｂ」を夫々乾燥後、重ユ比で（Ｂ）／（Ａ）
＝ ０／１００ 、１／９９．２／９８．５／９５の
割合で混合し、スクリュー径２５ｍｍのエクストルーダ
ーを用い８１６°Ｃの紡糸温度で溶融紡糸した。Examples 1 to 8 and Comparative Example 1 Polyethylene terephthalate (A) with an intrinsic viscosity of 1.17
After drying the fluoropolymer (tetrafluoroethylene-ethylene copolymer) [B], the weight ratio is (B)/(A).
= 0/100 and 1/99.2/98.5/95, and melt-spun at a spinning temperature of 816°C using an extruder with a screw diameter of 25 mm.
紡糸後ボビンに捲取り一日一定の温湿度の室に保管した
後約８倍に延伸して単糸８デニール、２４フイラメント
のマルチフィラメントを得た。この糸の一部を油剤等の
付着成分を落とす為によく洗滌し乾燥後、摩擦係数を測
定した。更に糸の他の一部をおのおの約２ｇづつ円筒に
巻き夫々硫酸８０チ塩酸８５％の液に浴比９０．液温２
５℃の条件で２４時間浸漬した。その糸を浸漬液から出
した後よく水洗し、真空乾燥させてその強度、伸度を測
定し、強度保持率を算出した。結果を表１に示す。After spinning, it was wound onto a bobbin, stored in a room at a constant temperature and humidity for one day, and then drawn to about 8 times to obtain a multifilament with a single yarn of 8 denier and 24 filaments. A portion of this thread was thoroughly washed to remove adherent components such as oil, and after drying, the coefficient of friction was measured. Further, other parts of the thread were wound into cylinders, each weighing about 2 g, and each was immersed in a solution of 80% sulfuric acid and 85% hydrochloric acid at a bath ratio of 90%. Liquid temperature 2
It was immersed for 24 hours at 5°C. After taking out the thread from the dipping solution, it was thoroughly washed with water, dried under vacuum, and its strength and elongation were measured, and the strength retention rate was calculated. The results are shown in Table 1.
実施例４及び５Examples 4 and 5
Claims (5)
ートにフッ素重合体を混練した 組成物からなる繊維。(1) A fiber made of a composition obtained by kneading a fluoropolymer with polyethylene terephthalate having an intrinsic viscosity of 0.70 or more.
５〜１．２０である特許請求の範囲第１項記載の繊維。(2) The intrinsic viscosity of polyethylene terephthalate is 0.8
5 to 1.20.
１項記載の繊維。(3) The fiber according to claim 1, wherein the fluoropolymer is thermoplastic.
チレンとの共重合体である特許請求の範囲第１項記載の
繊維。(4) The fiber according to claim 1, wherein the fluoropolymer is a copolymer of polyethylene and tetrafluoroethylene.
粘度０．７０以上のポリエチレンテレフタレートにフッ
素重合体を混練した組成物からなる特許請求の範囲第１
項記載の繊維。(5) The fiber is a core-sheath composite fiber, and the sheath component is a composition obtained by kneading a fluoropolymer with polyethylene terephthalate having an intrinsic viscosity of 0.70 or more.
Fibers as described in Section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8093886A JPS62238822A (en) | 1986-04-07 | 1986-04-07 | Modified polyester fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8093886A JPS62238822A (en) | 1986-04-07 | 1986-04-07 | Modified polyester fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62238822A true JPS62238822A (en) | 1987-10-19 |
Family
ID=13732408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8093886A Pending JPS62238822A (en) | 1986-04-07 | 1986-04-07 | Modified polyester fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62238822A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0226919A (en) * | 1988-07-15 | 1990-01-29 | Toray Ind Inc | Fiber excellent in low frictional characteristics and stainproofness |
| WO1994005835A1 (en) * | 1992-09-01 | 1994-03-17 | Rhone-Poulenc Viscosuisse Sa | Dirt-repellent monofilament for paper machine filters, process for its production and its use |
| WO1997046750A1 (en) * | 1996-06-07 | 1997-12-11 | E.I. Du Pont De Nemours And Company | Low or sub-denier nonwoven fibrous structures |
-
1986
- 1986-04-07 JP JP8093886A patent/JPS62238822A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0226919A (en) * | 1988-07-15 | 1990-01-29 | Toray Ind Inc | Fiber excellent in low frictional characteristics and stainproofness |
| WO1994005835A1 (en) * | 1992-09-01 | 1994-03-17 | Rhone-Poulenc Viscosuisse Sa | Dirt-repellent monofilament for paper machine filters, process for its production and its use |
| US5472780A (en) * | 1992-09-01 | 1995-12-05 | Rhone-Poulenc Viscosuisse Sa | Soil-repellent monofilament for paper machine wire-cloths, production thereof and use thereof |
| WO1997046750A1 (en) * | 1996-06-07 | 1997-12-11 | E.I. Du Pont De Nemours And Company | Low or sub-denier nonwoven fibrous structures |
| US5885909A (en) * | 1996-06-07 | 1999-03-23 | E. I. Du Pont De Nemours And Company | Low or sub-denier nonwoven fibrous structures |
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