JPH01213411A - Electrically conductive yarn - Google Patents
Electrically conductive yarnInfo
- Publication number
- JPH01213411A JPH01213411A JP3658388A JP3658388A JPH01213411A JP H01213411 A JPH01213411 A JP H01213411A JP 3658388 A JP3658388 A JP 3658388A JP 3658388 A JP3658388 A JP 3658388A JP H01213411 A JPH01213411 A JP H01213411A
- Authority
- JP
- Japan
- Prior art keywords
- component
- fiber
- core
- conductive
- sheath
- 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.)
- Granted
Links
- 239000000306 component Substances 0.000 claims abstract description 38
- 239000008358 core component Substances 0.000 claims abstract description 34
- 239000000126 substance Substances 0.000 claims abstract description 32
- 229920000728 polyester Polymers 0.000 claims abstract description 29
- 238000002844 melting Methods 0.000 claims abstract description 10
- 230000008018 melting Effects 0.000 claims abstract description 10
- -1 polyethylene terephthalate Polymers 0.000 claims abstract description 9
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 6
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims description 59
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 15
- 239000002131 composite material Substances 0.000 claims description 14
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 claims description 14
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 10
- VNGOYPQMJFJDLV-UHFFFAOYSA-N dimethyl benzene-1,3-dicarboxylate Chemical compound COC(=O)C1=CC=CC(C(=O)OC)=C1 VNGOYPQMJFJDLV-UHFFFAOYSA-N 0.000 claims description 9
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 8
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 8
- 230000001788 irregular Effects 0.000 claims description 8
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 7
- 150000002009 diols Chemical class 0.000 claims description 6
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 claims description 3
- 238000005406 washing Methods 0.000 abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 9
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 239000006230 acetylene black Substances 0.000 abstract description 2
- 239000006234 thermal black Substances 0.000 abstract description 2
- 238000007334 copolymerization reaction Methods 0.000 abstract 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 208000028659 discharge Diseases 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 229920000642 polymer Polymers 0.000 description 13
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 8
- 239000010410 layer Substances 0.000 description 7
- 229920001634 Copolyester Polymers 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 238000009987 spinning Methods 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000003851 corona treatment Methods 0.000 description 4
- 238000009760 electrical discharge machining Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 150000001463 antimony compounds Chemical class 0.000 description 2
- 239000012792 core layer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 150000002736 metal compounds Chemical class 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 1
- GBRBMTNGQBKBQE-UHFFFAOYSA-L copper;diiodide Chemical compound I[Cu]I GBRBMTNGQBKBQE-UHFFFAOYSA-L 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Chemical Or Physical Treatment Of Fibers (AREA)
- Multicomponent Fibers (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は導電性繊維、詳しくは芯成分に導電性物質を含
有する芯鞘型構造の導電性繊維に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to conductive fibers, and more particularly to conductive fibers having a core-sheath type structure containing a conductive substance in the core component.
（従来の技術）
ポリエチレン、ポリアミド、ポリエステル等の熱可塑性
樹脂は、繊維製品として多くの用途に使用されているが
、制電性に乏しいため帯電しやすいという欠点がある。(Prior Art) Thermoplastic resins such as polyethylene, polyamide, and polyester are used in many applications as textile products, but they have the disadvantage of being easily charged due to poor antistatic properties.
そのため、導電性繊維に関する多くの研究がなされてい
る。Therefore, many studies on conductive fibers have been conducted.
第一の方法として、繊維表面に導電性物質をコーティン
グする方法である。これらの導電性繊維は初期の導電性
能は良好であるが、着用時の耐摩耗性が不良であり、耐
洗濯性、耐薬品性も不良であり、防塵衣等に使用した場
合の発塵源となっている。The first method is to coat the fiber surface with a conductive substance. Although these conductive fibers have good initial conductive performance, they have poor abrasion resistance when worn, poor washing resistance and chemical resistance, and are a source of dust generation when used in dustproof clothing. It becomes.
第二の方法として、導電性物質の粉末を熱可塑性樹脂中
に分散させコア層とし、繊維形成性ポリマーをシース層
としてシース・コアの複合繊維とする場合である。この
場合には、例えば導電性カーボンを配合した導電性繊維
は、導電性カーボンが黒色であるため、シース層の薄い
場合などには、黒色に着色し、審美性が要求される分野
に用いることができず、コア層が完全にシース層の中に
あり、かつ、シース層の厚みが充分でないとその用途が
きわめて限定されるという問題を有している。The second method is to disperse a conductive material powder in a thermoplastic resin to form a core layer, and a fiber-forming polymer to form a sheath layer to form a sheath-core composite fiber. In this case, for example, conductive fibers containing conductive carbon may be colored black if the sheath layer is thin and used in fields where aesthetics are required, since the conductive carbon is black. However, if the core layer is completely inside the sheath layer and the sheath layer is not thick enough, its uses will be extremely limited.
導電性物質が導電性カーボンでない場合でも、シース層
で完全に覆わないと黒ずんで見えたり、使用中に脱落し
て機能が低下するなどのトラブルの原因となっている。Even if the conductive substance is not conductive carbon, if it is not completely covered with a sheath layer, it may appear dark or fall off during use, causing problems such as reduced functionality.
一方、シース層による完全被覆構造でも、以下のような
問題を有している。すなわち、繊維断面の芯部間の導電
性は良好で問題はないが、シース層は繊維形成性の良好
なポリマーで形成されているため、電気的には絶縁体と
なっており、表面の電気抵抗値が高く、導電性不良とな
っている点が問題である。On the other hand, even a completely covered structure with a sheath layer has the following problems. In other words, the conductivity between the core parts of the fiber cross section is good and there is no problem, but the sheath layer is made of a polymer with good fiber forming properties, so it is an electrical insulator, and the surface electrical conductivity is good. The problem is that the resistance value is high and the conductivity is poor.
したがって、このように芯部に導電性物質を含有する芯
鞘型複合繊維であっても、これを使用した布帛の静電気
による不快感（着用衣服の身体へのまつわりつき、脱衣
時の放電音、空気中のほこり付着等）の問題があった。Therefore, even with core-sheath type composite fibers that contain conductive substances in their cores, fabrics using them can cause discomfort due to static electricity (clothes that cling to the body, discharge noise when undressing, air pollution). There was a problem with dust adhering inside.
さらに、かかる芯鞘型複合繊維の問題を解決するため、
特開昭６０−１１０９２０号公報に記載されているよう
に芯成分を偏心させ、鞘成分の厚さを３μｍ以下とする
ことも提案されているが、かかる複合繊維は、電気抵抗
値も思ったように低くできない上、芯鞘界面剥離が生じ
、発塵しやすくなる等の問題がある。Furthermore, in order to solve the problem of such core-sheath type composite fibers,
As described in JP-A No. 60-110920, it has been proposed to make the core component eccentric and reduce the thickness of the sheath component to 3 μm or less, but such composite fibers have a low electrical resistance value. In addition, there are problems such as core-sheath interface peeling and dust generation.
これらの問題点を解決するため本出願人は、特開昭６２
−５３４１６号公報に記載されているように導電性物質
を芯成分に含有する芯鞘型複合繊維を高電圧で放電加工
することを提案した。In order to solve these problems, the present applicant has
As described in Japanese Patent Publication No. 53416, it was proposed that a core-sheath type composite fiber containing a conductive substance as a core component be subjected to electric discharge machining at a high voltage.
（発明が解決しようとする問題点）
上記の特開昭６２−５３４１６号公仰で提案した方法に
よると、導電性能の優れた繊維が得られるものの、放電
加工時の繊維の損傷や耐洗濯性に劣るなどの問題があっ
た。そこで、本発明は、繊維に損傷を与えずに繊維表面
の電気抵抗を低下させ良好な導電性能を付与するととも
に耐洗濯性、耐薬品性に優れた導電性繊維を提供するこ
とを目的とするものである。(Problems to be Solved by the Invention) According to the method proposed in the above-mentioned Japanese Patent Application Laid-Open No. 62-53416, fibers with excellent conductivity can be obtained, but the fibers are damaged during electrical discharge machining and have poor washing resistance. There were problems such as inferiority. Therefore, an object of the present invention is to provide a conductive fiber that lowers the electrical resistance of the fiber surface without damaging the fiber, provides good conductive performance, and has excellent washing resistance and chemical resistance. It is something.
（問題点を解決するための手段）
本発明者らは、上記問題点を解決するために研究を重ね
た結果、芯部を構成するポリエステルに特殊な共重合ポ
リエステルを用い、かつ、芯部の断面形状を鋭突部を有
する異形断面形状にすることによって、繊維に損傷を与
えず、耐洗濯性、耐薬品性に優れた導電性繊維が得られ
ることを見出し本発明に到達した。(Means for Solving the Problems) As a result of repeated research in order to solve the above problems, the present inventors used a special copolymer polyester as the polyester constituting the core, and The present invention was achieved by discovering that conductive fibers with excellent washing resistance and chemical resistance can be obtained without damaging the fibers by making the cross-sectional shape an irregular cross-sectional shape having sharp protrusions.
すなわち、本発明は導電性物質を含有する芯成分と、該
芯成分を完全に被覆する繊維形成性ポリエステルからな
る鞘成分とにより構成され、繊維表面の電気抵抗値が１
０１Ω／ｃＩ１１未満であり、かつ、該表面の電気抵抗
値と断面間の内部電気抵抗値との比が１０３以下である
芯鞘型複合繊維において、該芯成分が８０〜１８０℃の
融点を有する共重合ポリエステルと導電性物質とからな
り、芯成分の断面形状が２以上の鋭突部を有する異形断
面形状であって、該鋭突部と該鞘成分外周部とにより形
成される鞘成分最小厚さＶｉのすべてが０．３μｍ以上
で、かつ、その少な（とも一つが５μｍ以下であること
を特徴とする導電性繊維である。That is, the present invention is composed of a core component containing a conductive substance and a sheath component made of fiber-forming polyester that completely covers the core component, and the electrical resistance value of the fiber surface is 1.
01Ω/cI11 or less, and the ratio of the electrical resistance value of the surface to the internal electrical resistance value between the cross sections is 103 or less, in which the core component has a melting point of 80 to 180 ° C. The core component is made of a copolymerized polyester and a conductive substance, and the core component has an irregular cross-sectional shape having two or more sharp protrusions, and the sheath component is formed by the sharp protrusions and the outer periphery of the sheath component. The conductive fiber is characterized in that all of the thicknesses Vi are 0.3 μm or more, and one of the thicknesses Vi is 5 μm or less.
本発明繊維の芯成分は導電性物質を含有するものである
が、該導電性物質としては、導電性カーポンプラック、
導電性金属化合物等の公知のものが使用できる。The core component of the fiber of the present invention contains a conductive substance, and the conductive substance includes conductive carpon rack,
Known materials such as conductive metal compounds can be used.
カーボンブランクの種類としては、アセチレンブラック
、オイルファーネスブラック、サーマルブラック、チャ
ネルブランク、ケッチエンブラック等が例示される。他
方、導電性金属化合物としては、ヨウ化銅、硫化銅等が
挙げられ、導電性金属酸化物としては特に白色性に優れ
た酸化第二錫、酸化亜鉛が挙げられる。ここでいう酸化
第二錫には、少量のアンチモン化合物を含む酸化第二錫
、酸化チタン粒子の表面に少量のアンチモン化合物を含
む酸化第二錫をコーティングして得られる導電性金属複
合体も含まれる。また、酸化亜鉛には少量の酸化アルミ
ニウム、酸化リチウム、酸化インジウム等を溶解した導
電性酸化亜鉛も含まれる。Examples of the types of carbon blanks include acetylene black, oil furnace black, thermal black, channel blank, and Ketschen black. On the other hand, examples of conductive metal compounds include copper iodide and copper sulfide, and examples of conductive metal oxides include tin oxide and zinc oxide, which have particularly excellent whiteness. The stannic oxide mentioned here also includes stannic oxide containing a small amount of antimony compound, and conductive metal composites obtained by coating the surface of titanium oxide particles with stannic oxide containing a small amount of antimony compound. It will be done. Zinc oxide also includes conductive zinc oxide in which small amounts of aluminum oxide, lithium oxide, indium oxide, etc. are dissolved.
これらは、通常微粉末としてマトリックスポリマーに分
散して用いられるが、該マトリックスポリマーには、融
点が８０−１８０℃である特殊な共重合ポリエステルポ
リマーを用いることが重要である。These are normally used as fine powders dispersed in a matrix polymer, but it is important to use a special copolyester polymer having a melting point of 80 to 180°C as the matrix polymer.
この場合、融点が８０℃未満では、芯の異形断面形状が
バラツキ易く、均質な糸が得られないし、１８０℃を越
えると、芯成分中に所定量の導電剤を分散させることが
困難で、紡糸そのものが不可能となる。In this case, if the melting point is less than 80°C, the irregular cross-sectional shape of the core tends to vary, making it impossible to obtain a homogeneous thread, and if it exceeds 180°C, it is difficult to disperse a predetermined amount of the conductive agent in the core component. Spinning itself becomes impossible.
かかる共重合ポリエステルとしては、特に、５〜５０モ
ル％のイソフタル酸またはイソフタル酸ジメチルと９５
〜５０モル％のテレフタル酸またはテレフタル酸ジメチ
ルとからなるジカルボン酸成分と、ヘキサメチレングリ
コールからなるジオール成分とからなる共重合ポリエス
テル、または４０〜８０モル％のイソフタル酸またはイ
ソフタル酸ジメチルと６０〜２０モル％のテレフタル酸
またはテレフタル酸ジメチルとからなるジカルボン酸成
分と、２〜１０モル％のエチレングリコールと９８〜９
０モル％のテトラメチレングリコールとからなるジオー
ル成分とからなる共重合ポリエステルを用いることが好
ましい。Such copolyesters include, in particular, 95 to 50 mol% of isophthalic acid or dimethyl isophthalate.
A copolymerized polyester consisting of a dicarboxylic acid component consisting of ~50 mol% of terephthalic acid or dimethyl terephthalate and a diol component consisting of hexamethylene glycol, or a copolymerized polyester consisting of 40-80 mol% of isophthalic acid or dimethyl isophthalate and 60-20 mol% of isophthalic acid or dimethyl isophthalate. A dicarboxylic acid component consisting of mol% of terephthalic acid or dimethyl terephthalate, 2 to 10 mol% of ethylene glycol, and 98 to 9% of ethylene glycol.
It is preferable to use a copolymerized polyester consisting of a diol component consisting of 0 mol% of tetramethylene glycol.
この共重合ポリエステルは導電性物質を多量に分散させ
た状態でも分散性がよく、かつ、鞘部のポリエステル成
分との接着性が特に良好であるため、芯部の鋭突部と鞘
成分外周とにより形成される鞘成分最小厚さを薄くして
も洗濯耐久性が良好であり、かつ、より低電圧で放電処
理を行っても、十分な導電性能を付与することができる
ため、繊維に損傷を与えることがない。This copolyester has good dispersibility even when a large amount of conductive material is dispersed, and has particularly good adhesion to the polyester component of the sheath, so that the sharp protrusion of the core and the outer periphery of the sheath Even if the minimum thickness of the sheath component is made thinner, it has good washing durability, and even if discharge treatment is performed at a lower voltage, sufficient conductive performance can be imparted, so there is no damage to the fibers. Never give up.
該芯成分を完全に取り囲む鞘成分は繊維形成性ポリエス
テルから構成される。特に、風合、加工工程の取扱い性
において優れており、さらに、耐薬品性も良好なことか
らポリエチレンテレフタレートが好ましい。A sheath component that completely surrounds the core component is comprised of fiber-forming polyester. In particular, polyethylene terephthalate is preferred because it has excellent texture and handling properties during processing, and also has good chemical resistance.
かかる物質からなる導電性繊維は、繊維断面における該
芯成分の形状が２以上の鋭突部を有する異形断面形状で
あることが重要である。鋭突部の数は２〜８が好ましい
。ここにいう鋭突部を有する断面形状とは凸状ないしは
突起状の凸部を有する断面形状をいい、主なもの、に、
第１図（イ）〜（ニ）に示すものがある。さらに、第１
図（ロ）に示した鋭突部と鞘成分外周との最小厚さＶｉ
のすべてが０．３μｍ以上であり、少な（とも一つは５
μｍ以下であることが必要である。Ｖｉが０．３μｍよ
り小さい箇所がある場合には、耐洗濯性が低下し、■五
のすべてが５μｍより大きい場合には、導電性能が劣る
という問題がある。In a conductive fiber made of such a substance, it is important that the core component in the cross section of the fiber has an irregular cross-sectional shape having two or more sharp protrusions. The number of sharp protrusions is preferably 2 to 8. The cross-sectional shape having a sharp protrusion here refers to a cross-sectional shape having a convex or protruding convex part, and the main ones are:
There are those shown in Fig. 1 (a) to (d). Furthermore, the first
The minimum thickness Vi between the sharp protrusion and the outer periphery of the sheath component shown in Figure (B)
All of them are 0.3μm or more, and a few (one is 5μm or more)
It is necessary that the thickness be less than μm. If there is a part where Vi is smaller than 0.3 μm, there is a problem that the washing resistance is decreased, and if all of (5) are larger than 5 μm, the conductive performance is poor.
また、本発明の導電性複合繊維は、第１図（ホ）に示す
ような中空繊維であってもよい。Further, the conductive composite fiber of the present invention may be a hollow fiber as shown in FIG. 1 (E).
本発明の導電性繊維は、後述するような放電処理を施し
て得られるが、繊維表面の電気抵抗値がＩＱＩＩΩ／ｃ
ｔｓ未満であり、かつ、該表面の電気抵抗値（Ω／ ｃ
ｓ ）と断面間の内部電気抵抗値（９７ｃｍ）との比が
１０’以下である。通常、繊維形成性ポリマーからなる
繊維の表面抵抗値は、例えば、１０”Ω／ｃ−オーダー
というように非常に高く、仮に断面間内部抵抗値が１０
’Ω／ ｃｍ 井−ダーと低（でも、表面の電気抵抗値
と断面間の内部電気抵抗値の比は１０’程度と大であり
、繊維の表面には、はとんど導電性の効果が発現しない
。The conductive fiber of the present invention is obtained by subjecting it to a discharge treatment as described below, and the electrical resistance value of the fiber surface is IQIIΩ/c.
ts, and the electrical resistance value of the surface (Ω/c
s ) and the internal electrical resistance value (97 cm) between cross sections is 10' or less. Normally, the surface resistance value of fibers made of fiber-forming polymers is very high, for example, on the order of 10"Ω/c, and if the cross-sectional internal resistance value is 10"
'Ω/cm' is very low (however, the ratio of the surface electrical resistance value to the internal electrical resistance value between the cross sections is as large as about 10', and the surface of the fiber has almost no conductive effect. is not expressed.
本発明者らは、先に、鞘成分が繊維形成性ポリマーから
構成されていても、繊維表面の電気抵抗値がＩＱＩＯΩ
／ ｃｍオーダー以下である導電性繊維を提案した（特
開昭６２−５３４１６号公報）。The present inventors previously discovered that even if the sheath component is composed of a fiber-forming polymer, the electrical resistance value of the fiber surface is IQIOΩ.
/ Conductive fiber, which is less than a CM order, was proposed (Special Opening Shora 62-53416 Bulletin).
ここに、電気抵抗値（Ω／ ｃｍ ）は次のようにして
測定する。Here, the electrical resistance value (Ω/cm) is measured as follows.
（イ）断面量的部電気抵抗（直
繊維軸方向の長さ２．０ ｃｍとなるよう両端を横断面
方向にカットした繊維の該両断面にＡｇドウタイト（銀
粒子含有の導電性樹脂塗料、藤倉工業製）を付着させた
試料を電気絶縁性ポリエチレンテレフタレートフィルム
上で、温湿度２０’ＣＸ３０％ＲＨの条件のもとに０．
５ＫＶの直流電圧を該Ａｇドウタイト付着面を使って印
加して両断面間に流れる電流を求め、オームの法則によ
り電気抵抗値Ω／ ｃｍを算出する。(b) Cross-sectional quantitative electric resistance (A straight fiber with Ag dotite (conductive resin paint containing silver particles) Fujikura Industries Co., Ltd.) was deposited on an electrically insulating polyethylene terephthalate film under conditions of temperature and humidity of 20'C x 30% RH.
A DC voltage of 5 KV is applied using the Ag dotite attachment surface to determine the current flowing between both cross sections, and the electrical resistance value Ω/cm is calculated using Ohm's law.
Ｊ…上１」四ｉ ％ Ｕ彊直
繊維軸方向の長さ約２．’Ｏｃｍにカットされた繊維の
両端付近の表面（繊維側面）に前記のＡｇドウタイトを
付着させたものを試料として、該試料を電気絶縁性ポリ
エチレンテレフタレートフィルム上で、温湿度２０℃×
３０％ＲＨの条件の下に、０．５ＫＶの直流電圧を該Ａ
ｇドウタイト間に印加してＡｇドウタイト間に流れる電
流を求め、かつ、Ａｇドウタイト間の距離を測定して、
オームの法則により表面電気抵抗値Ω／ｃｍを算出する
。J...Top 1"4i% U-shaped straight fiber axial length approximately 2. A sample was prepared by adhering the above-mentioned Ag doutite to the surface near both ends (fiber side surfaces) of a fiber cut into 100 cm. The sample was placed on an electrically insulating polyethylene terephthalate film at a temperature and humidity of 20°
Under the condition of 30%RH, apply a DC voltage of 0.5KV to the A
Find the current that is applied between the Ag doutites and flows between the Ag doutites, and measure the distance between the Ag doutites,
The surface electrical resistance value Ω/cm is calculated using Ohm's law.
本発明の繊維は、放電処理を施すことによって表面電気
抵抗値を低下させ、表面電気抵抗値と断面間の内部電気
抵抗値との比を小さくし、導電性を付与するものである
が、放電処理法としては、前記のようにして得られた芯
鞘型複合繊維を高電圧電極に接触させて高電圧を印加す
る通電法、放電形状の異なるコロナ放電、火花放電、グ
ロー放電、アーク放電等の高電圧放電処理法により処理
することができる。The fibers of the present invention are subjected to electrical discharge treatment to reduce the surface electrical resistance value, reduce the ratio of the surface electrical resistance value to the internal electrical resistance value between cross sections, and impart electrical conductivity. Treatment methods include an energization method in which the core-sheath composite fiber obtained as described above is brought into contact with a high voltage electrode and a high voltage is applied, corona discharge with different discharge shapes, spark discharge, glow discharge, arc discharge, etc. The high voltage discharge treatment method described above can be used.
印加電圧としては、１’ＫＶを超える電圧であって、１
００ＫＶまでの範囲のものが使用でき、好ましくは５〜
１００ＫＶ、特に好ましくは１０〜５０ＫＶの範囲のも
のが好適に例示される。電圧の極性はプラスでも、マイ
ナスでも（直流）、又は交流であってもよい。電極間の
距離はＯ”１０ｃｎａ間の範囲のものが使用でき、放電
形態と処理速度との関係で決めることができる。又、導
電性物質を含有する芯成分を一方の極とし、他方の極を
別に設けて、該両極に高電圧を印加し、この高電圧電極
下で放電処理することが最適に例示されるが、この方法
に限るものではなく、別々に設けた二つの極に高電圧を
印加して放電処理する方法であってもよい。The applied voltage is a voltage exceeding 1'KV, and 1
00KV can be used, preferably 5~
Suitable examples include those in the range of 100 KV, particularly preferably 10 to 50 KV. The polarity of the voltage may be positive, negative (direct current), or alternating current. The distance between the electrodes can be in the range of 0"10cna, and can be determined depending on the relationship between the discharge form and the processing speed.Also, the core component containing the conductive substance is used as one pole, and the other pole is used as the distance between the electrodes. The best example is to separately provide two electrodes, apply a high voltage to the two electrodes, and perform the discharge treatment under this high voltage electrode, but the method is not limited to this method. A method may also be used in which discharge treatment is performed by applying .
又、このような放電処理は糸の状態でも、編織物等の布
帛、不織布の状態でも行うことができる。Furthermore, such discharge treatment can be performed on yarns, fabrics such as knitted fabrics, and nonwoven fabrics.
さらに糸の場合、延伸糸に施しても、未延伸糸に施して
も良い。Furthermore, in the case of yarn, it may be applied to drawn yarn or undrawn yarn.
かかる放電処理によって、表面電気抵抗値を１０Ｉ０Ω
／ｃＩ１１オーダー以下とすることができるし、表面電
気抵抗値と断面量的部電圧抵抗値との比を１０”以下と
することができ、好ましくは、この比を１０２以下、特
に厳しい条件で使用する場合は１０以下とすることがで
きる。Through this discharge treatment, the surface electrical resistance value was reduced to 10I0Ω.
/cI can be on the order of 11 or less, and the ratio of the surface electrical resistance value to the cross-sectional quantitative voltage resistance value can be made to be 10" or less, and preferably this ratio is 102 or less, when used under particularly severe conditions. If so, it can be set to 10 or less.
（作用）
本発明の繊維は、表面電気抵抗値と断面間の内部電気抵
抗値との比が１０３以下、表面電気抵抗値が１０”Ω／
ｃｒｎ未満となり、かつ、洗濯耐久性および耐薬品性
に優れた特性を有するものである。(Function) The fiber of the present invention has a ratio of surface electrical resistance to cross-sectional internal electrical resistance of 103 or less, and a surface electrical resistance of 10”Ω/
crn, and has excellent washing durability and chemical resistance.
電気抵抗値に関しては、繊維形成性ポリマーの電気抵抗
値を高電圧による放電処理により低下させることができ
るため上記のような値をとることができる。特に、芯成
分を一方の極とし、他方の極を別に設けてこの両極に高
電圧をかけて放電処理した場合には繊維形成性ポリマー
の有するる電気絶縁性をなくし、電気の半導体と同様の
性質を付与することができる。Regarding the electrical resistance value, since the electrical resistance value of the fiber-forming polymer can be lowered by discharge treatment using a high voltage, the above value can be obtained. In particular, when the core component is used as one pole and the other pole is separately provided and a high voltage is applied to these two poles and discharge treatment is performed, the electrical insulation property of the fiber-forming polymer is lost, and the same as that of an electric semiconductor is produced. Properties can be assigned.
また、芯成分として、鞘成分との接着性にすぐれた特殊
な共重合ポリエステルを用い、かつ、芯部の断面形状が
異形断面形状であり芯部が鞘部によって完全に被覆され
ているために、洗濯耐久性、耐薬品性に優れている。In addition, a special copolyester polyester with excellent adhesion to the sheath component is used as the core component, and the core has an irregular cross-sectional shape and is completely covered by the sheath. , excellent washing durability and chemical resistance.
すなわち、芯成分が、鞘成分のポリエステルと良好な接
着性を示す融点が８０〜１８０℃である共重合ポリエス
テルからなるため、芯部の鋭突部と鞘成分外周部とによ
り形成される鞘成分最小厚さＶｉＯ値が小さくても十分
な耐洗濯性を有することができる。これは従来の芯鞘型
導電性繊維にはみられなかったことである。さらに芯成
分の断面形状が鋭突部を有する異形断面形状であるため
、放電加工時に該鋭突部先端において放電処理が行われ
、低電圧での処理でも十分な導電性を付与することがで
きるため、放電加工による鞘部の損傷を最小限度にする
ことができ、強伸度低下、放電加工中の断糸等のトラブ
ルを防止できる。また、導電物質を含有する芯成分が完
全に鞘成分で覆われていながら制電性を発揮するので、
導電物質特有の色が繊維表面にあられれることもなく、
芯成分が使用中に脱落して機能が低下することもない。That is, since the core component is made of a copolymerized polyester with a melting point of 80 to 180° C. that exhibits good adhesion to the polyester of the sheath component, the sheath component formed by the sharp protrusion of the core and the outer periphery of the sheath component. Even if the minimum thickness ViO value is small, sufficient washing resistance can be achieved. This has not been seen in conventional core-sheath type conductive fibers. Furthermore, since the core component has an irregular cross-sectional shape with sharp protrusions, electrical discharge treatment is performed at the tip of the sharp protrusions during electrical discharge machining, and sufficient conductivity can be imparted even when processed at low voltage. Therefore, damage to the sheath portion due to electrical discharge machining can be minimized, and troubles such as a decrease in strength and elongation and yarn breakage during electrical discharge machining can be prevented. In addition, the core component containing the conductive material exhibits antistatic properties even though it is completely covered with the sheath component.
The color peculiar to conductive materials does not appear on the fiber surface,
The core component will not fall off during use and the functionality will not deteriorate.
（実施例）
以下、実施例について述べるが、洗濯耐久性及び耐薬品
性は下記の方法により評価した。(Example) Examples will be described below, and washing durability and chemical resistance were evaluated by the following methods.
試料はＴ−８９３９３の繊維規格に準じて作成し、導電
糸を１ｃ１１間隔でストライプに織込んだ。The sample was prepared according to the fiber standard of T-89393, and conductive threads were woven into stripes at 1c11 intervals.
洗濯耐久性はクリーンルーム内で洗濯をくり返した後の
織物表面を任意に２０ケ所外観検査し、破損箇所の個数
割合を％で表した。耐薬品性は、織物試料を薬品に室温
で２４時間浸漬後、水洗乾燥後、スコツトテスターで５
０回揉み操作をくり返した後、織物表面を任意に２０ケ
所外観検査し、剥離なしを○、一部剥離をΔ、大部分剥
離を×で評価した。Washing durability was determined by visually inspecting the surface of the fabric at 20 arbitrary locations after repeated washing in a clean room, and expressing the number of damaged spots as a percentage. Chemical resistance was determined using a Scotto tester after immersing the fabric sample in chemicals for 24 hours at room temperature, washing with water, and drying.
After repeating the kneading operation 0 times, the appearance of the fabric surface was randomly inspected at 20 locations, and evaluation was made as ◯ for no peeling, Δ for partial peeling, and × for most peeling.
実施例１
酸化チタン徽粒子の表面に導電性酸化第二錫をコーティ
ングした平均粒径０．２５μ、比抵抗９Ω値の導電性粉
体２４０重量部と、ジカルボン酸成分としてテレフタル
酸ジメチル９０モル％、イソフタル酸ジメチル１０モル
％、ジオール成分としてヘキサメチレングリコール１０
０モル％からなる共重合ポリエステル（融点：１３８℃
、固有粘度： ０．６６） ７５重量部をニーグーに仕
込み、２００℃で１時間混練した。得られた導電性樹脂
の比抵抗は、３． ｌ Ｘ １０２Ω・備であった。Example 1 240 parts by weight of a conductive powder having an average particle size of 0.25μ and a specific resistance of 9Ω, which is made by coating the surface of titanium oxide particles with conductive tin oxide, and 90 mol% of dimethyl terephthalate as a dicarboxylic acid component. , dimethyl isophthalate 10 mol%, hexamethylene glycol 10 as diol component
Copolymerized polyester consisting of 0 mol% (melting point: 138°C
, intrinsic viscosity: 0.66) 75 parts by weight were charged into a Nigu and kneaded at 200°C for 1 hour. The specific resistance of the obtained conductive resin is 3. The resistance was 1 x 102Ω.
この導電性樹脂を芯成分とし、ポリエチレンテレフタレ
ートを鞘成分とし複合紡糸装置を用いて溶融紡糸し、第
１図（ロ）に示すような断面形状を有する芯鞘型複合繊
維としたのち３．１倍に延伸して２５デニール、単糸数
５のマルチフィラメントを得た。This conductive resin is used as a core component, polyethylene terephthalate is used as a sheath component, and melt-spun using a composite spinning device to obtain a core-sheath type composite fiber having a cross-sectional shape as shown in Figure 1 (b). The multifilament was stretched twice to obtain a 25 denier multifilament with a single thread count of 5.
この芯鞘型複合繊維をマイナス５ＫＶ、５０ｍ／分でコ
ロナ放電処理をした。電気抵抗値、強伸度、耐洗濯性、
耐薬品性を第１表に示す。This core-sheath type composite fiber was subjected to corona discharge treatment at -5 KV and 50 m/min. Electrical resistance value, strength and elongation, washing resistance,
Chemical resistance is shown in Table 1.
比較例１
実施例１で用いた導電性粉体２４０重量部とメルトイン
デックス７５のポリエチレン７５重量部とをニーグーに
仕込み、１８０’ｃで３０分間混練した。得られた導電
性樹脂の比抵抗は、３．０Ｘ１０”Ω・ｃｍであった。Comparative Example 1 240 parts by weight of the conductive powder used in Example 1 and 75 parts by weight of polyethylene having a melt index of 75 were charged into a Nigu and kneaded at 180'c for 30 minutes. The specific resistance of the obtained conductive resin was 3.0×10”Ω·cm.
実施例１と同様に溶融紡糸、延伸し、コロナ放電処理を
行った後の性質を第１表に示す。Table 1 shows the properties after melt spinning, stretching, and corona discharge treatment in the same manner as in Example 1.
比較例２
実施例１において、共重合ポリエステルのかわりにナイ
ロン６を用い、２５０°Ｃで１時間混練した以外は実施
例１と同様に行った。得られた繊維の性質を第１表に示
す。Comparative Example 2 The same procedure as in Example 1 was carried out except that nylon 6 was used instead of the copolymerized polyester and kneaded at 250°C for 1 hour. The properties of the obtained fibers are shown in Table 1.
実施例２
導電性物質として、導電性カーボンブラック３０重足部
と、実施例１で用いた共重合ポリエステル７０重量部を
混練した以外は実施例１と同様に行った。得□られた繊
維の性質を第１表に示す。Example 2 The same procedure as in Example 1 was carried out except that 30 parts by weight of conductive carbon black and 70 parts by weight of the copolyester used in Example 1 were kneaded as conductive substances. The properties of the obtained fibers are shown in Table 1.
比較例３〜４
実施例１において、Ｖｉが第１表に示す値になるように
芯・鞘成分の量を変更した以外は、実施例１と同様に紡
糸、延伸、コロナ放電処理を行った。結果を第１表に示
す。Comparative Examples 3 to 4 Spinning, drawing, and corona discharge treatment were performed in the same manner as in Example 1, except that the amounts of the core and sheath components were changed so that Vi became the value shown in Table 1. . The results are shown in Table 1.
実施例３
実施例１において、共重合ポリエステルとしてテレフタ
ル酸ジメチル４０モル％、イソフタル酸ジメチル６０モ
ル％、からなるジカルボン酸成分と、エチレングリコー
ル５モル％、テトラメチレングリコール９５モル％から
なるジオール成分とからなる共重合ポリエステルを用い
る以外は実施例１と同様に行った。その結果を第１表に
示す。Example 3 In Example 1, a dicarboxylic acid component consisting of 40 mol% of dimethyl terephthalate and 60 mol% of dimethyl isophthalate and a diol component consisting of 5 mol% of ethylene glycol and 95 mol% of tetramethylene glycol were used as the copolymerized polyester. Example 1 was carried out in the same manner as in Example 1 except that a copolymerized polyester consisting of was used. The results are shown in Table 1.
（本真、以下余白）
第１表の結果から明らかなように、芯成分が導電性物質
と共重合ポリエステルからなり、かつ、ＶｉＯ値が本発
明の範囲内にある場合（実施例１〜３）には、芯成分が
ナイロン６やポリエチレンの場合（比較例１および２）
、あるいはＶｉＯ値が本発明の範囲よりも低い場合（比
較例３）に比べて、耐洗濯性および耐薬品性が優れてお
り、さらに、ＶｉＯ値が本発明の範囲よりも高い場合（
比較例４）に比べて、表面電気抵抗値が低く、制電性に
優れていることがわかる。(Main truth, hereafter blank) As is clear from the results in Table 1, when the core component consists of a conductive substance and a copolymerized polyester and the ViO value is within the range of the present invention (Examples 1 to 3) ), when the core component is nylon 6 or polyethylene (Comparative Examples 1 and 2)
, or the case where the ViO value is lower than the range of the present invention (Comparative Example 3), the washing resistance and chemical resistance are excellent, and the ViO value is higher than the range of the present invention (Comparative Example 3).
It can be seen that the surface electrical resistance value is lower than that of Comparative Example 4), and the antistatic property is excellent.
比較例５
導電性物質、芯部ポリマーおよび鞘部ポリマーは実施例
１で用いたものを使用して溶融紡糸し、同心円型複合繊
維としたのち、３．１倍に延伸し、２５デニール、単糸
数５のマルチフィラメントを得た。実施例１と同様の方
法によりコロナ放電処理をした。得られた糸は、Ｖｉ（
μｒｎ） −７，３、表面電気抵抗値５．ＯＸＩＯ”Ω
・ｃｍ、断面量的部電気抵抗値４Ｘ１０’Ω・ｃｍ、強
度３．９（ｇ／ｄｅ） 、伸度３９％であった。この結
果から明らかなように、芯部の断面形状が鋭突部を有す
る異形断面でない場合（比較例５）には、本発明の場合
（実施例１）に比較して、表面電気抵抗値が高く、実質
的に放電加工されない。Comparative Example 5 The conductive material, core polymer, and sheath polymer used in Example 1 were melt-spun to form concentric composite fibers, which were then drawn 3.1 times and made into 25 denier, single fibers. A multifilament with a thread count of 5 was obtained. Corona discharge treatment was performed in the same manner as in Example 1. The obtained thread has Vi(
μrn) -7.3, surface electrical resistance value 5. OXIO”Ω
・cm, cross-sectional quantitative electrical resistance value of 4×10' Ω・cm, strength of 3.9 (g/de), and elongation of 39%. As is clear from this result, when the cross-sectional shape of the core part is not an irregular cross-section having a sharp protrusion (Comparative Example 5), the surface electrical resistance value is lower than that of the present invention (Example 1). high and virtually non-erodible.
実施例４〜５、比較例６
実施例１において、イソフタル酸ジメチルの量を第２表
に示すように変更し、融点の異なる芯成分ポリマーとし
た以外は、同様に紡糸延伸を行い、放電処理を行った。Examples 4 to 5, Comparative Example 6 Spinning and drawing were carried out in the same manner as in Example 1, except that the amount of dimethyl isophthalate was changed as shown in Table 2, and the core component polymers had different melting points. I did it.
電気抵抗値、強伸度、耐洗濯性、耐薬品性を第２表に示
す。The electrical resistance value, strength and elongation, washing resistance, and chemical resistance are shown in Table 2.
比較例７
実施例３において、テレフタル酸ジメチルを８２モル％
、イソフタル酸ジメチルを１８モル％、エチレングリコ
ールを３モル％、テトラメチレングリコールを９７モル
％とする以外は、実施例３と同様に行った。その結果を
第２表に示す。Comparative Example 7 In Example 3, 82 mol% of dimethyl terephthalate
The same procedure as in Example 3 was carried out, except that dimethyl isophthalate was 18 mol%, ethylene glycol was 3 mol%, and tetramethylene glycol was 97 mol%. The results are shown in Table 2.
（本頁、以下余白）
第 ２ 表
※ 紡糸不可能
第２表の結果から明らかなように、芯成分の共重合ポリ
エステルの融点が８０℃未満である場合（比較例６）に
は、糸断面が不均一になるため強伸度が低く、１８０℃
を越える場合（比較例７）には芯ポリマーの粘度が高い
ため、紡糸そのものが不可能であった。(This page, blank spaces below) Table 2 *Unable to spin As is clear from the results in Table 2, when the melting point of the core component copolyester is less than 80°C (Comparative Example 6), the thread cross section The strength and elongation are low due to non-uniformity, and the
(Comparative Example 7), the viscosity of the core polymer was so high that spinning itself was impossible.
一方、融点が本発明の範囲内にある場合（実施例３〜４
）には、電気抵抗値が低くなり、強伸度、耐洗濯性およ
び耐薬品性は良好である。On the other hand, when the melting point is within the range of the present invention (Examples 3 to 4)
) has a low electrical resistance value and good strength and elongation, washing resistance and chemical resistance.
（発明の効果）
本発明によれば、繊維表面の電気抵抗値が低く、制電性
に優れた芯鞘型複合繊維であり、かつ耐洗濯性、耐薬品
性に優れた導電性繊維を提供することができる。(Effects of the Invention) According to the present invention, there is provided a conductive fiber that is a core-sheath composite fiber with a low electric resistance value on the fiber surface and excellent antistatic properties, and has excellent washing resistance and chemical resistance. can do.
第１図は、本発明の導電性芯鞘型複合繊維の断面形状の
例を示す図である。
Ｖｉ・・・・・・鋭突部と鞘成分外周部とにより形成さ
れる鞘成分最小厚さ。FIG. 1 is a diagram showing an example of the cross-sectional shape of the conductive core-sheath type composite fiber of the present invention. Vi: Minimum thickness of the sheath component formed by the sharp protrusion and the outer periphery of the sheath component.
Claims (1)
被覆する繊維形成性ポリエステルからなる鞘成分とによ
り構成され、繊維表面の電気抵抗値が１０＾１＾１Ω／
ｃｍ未満であり、かつ、該表面の電気抵抗値と断面間の
内部電気抵抗値との比が１０＾３以下である芯鞘型複合
繊維において、該芯成分が８０〜１８０℃の融点を有す
る共重合ポリエステルと導電性物質とからなり、芯成分
の断面形状が２以上の鋭突部を有する異形断面形状であ
って、該鋭突部と該鞘成分外周部とにより形成される鞘
成分最小厚さＶｉのすべてが０．３μｍ以上で、かつ、
その少なくとも一つが５μｍ以下であることを特徴とす
る導電性繊維。 ２、繊維形成性ポリエステルが、主としてポリエチレン
テレフタレートであり、芯成分を構成する共重合ポリエ
ステルが、５〜５０モル％のイソフタル酸またはイソフ
タル酸ジメチルと９０〜５０モル％のテレフタル酸また
はテレフタル酸ジメチルとからなるジカルボン酸成分と
、ヘキサメチレングリコールからなるジオール成分とか
らなる共重合ポリエステルである特許請求の範囲第１項
記載の導電性繊維。 ３、芯成分を構成する共重合ポリエステルが、４０〜８
０モル％のイソフタル酸またはイソフタル酸ジメチルと
６０〜２０モル％のテレフタル酸またはテレフタル酸ジ
メチルとからなるジカルボン酸成分と、２〜１０モル％
のエチレングリコールと９８〜９０モル％のテトラメチ
レングリコールとからなるジオール成分とからなる共重
合ポリエステルである特許請求の範囲第１項記載の導電
性繊維。[Claims] 1. It is composed of a core component containing a conductive substance and a sheath component made of fiber-forming polyester that completely covers the core component, and the electrical resistance value of the fiber surface is 10^1^ 1Ω/
In a core-sheath type composite fiber which is less than cm and has a ratio of the electrical resistance value of the surface to the internal electrical resistance value between the cross sections of 10^3 or less, the core component has a melting point of 80 to 180 ° C. The core component is made of a copolymerized polyester and a conductive substance, and the core component has an irregular cross-sectional shape having two or more sharp protrusions, and the sheath component is formed by the sharp protrusions and the outer periphery of the sheath component. All of the thicknesses Vi are 0.3 μm or more, and
A conductive fiber characterized in that at least one of the conductive fibers has a diameter of 5 μm or less. 2. The fiber-forming polyester is mainly polyethylene terephthalate, and the copolymerized polyester constituting the core component is 5 to 50 mol% of isophthalic acid or dimethyl isophthalate and 90 to 50 mol% of terephthalic acid or dimethyl terephthalate. 2. The conductive fiber according to claim 1, which is a copolymerized polyester comprising a dicarboxylic acid component consisting of a dicarboxylic acid component consisting of the following: and a diol component consisting of hexamethylene glycol. 3. The copolymerized polyester constituting the core component is 40 to 8
a dicarboxylic acid component consisting of 0 mol% isophthalic acid or dimethyl isophthalate and 60 to 20 mol% terephthalic acid or dimethyl terephthalate; and 2 to 10 mol%
2. The conductive fiber according to claim 1, which is a copolymerized polyester comprising ethylene glycol and a diol component comprising 98 to 90 mol% of tetramethylene glycol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63036583A JPH0733637B2 (en) | 1988-02-18 | 1988-02-18 | Conductive fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63036583A JPH0733637B2 (en) | 1988-02-18 | 1988-02-18 | Conductive fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01213411A true JPH01213411A (en) | 1989-08-28 |
| JPH0733637B2 JPH0733637B2 (en) | 1995-04-12 |
Family
ID=12473793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63036583A Expired - Lifetime JPH0733637B2 (en) | 1988-02-18 | 1988-02-18 | Conductive fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0733637B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2037015A1 (en) * | 2006-07-03 | 2009-03-18 | Kuraray Co., Ltd. | Conductive sheath-core conjugate fiber and process for producing the same |
| US7809321B2 (en) | 2006-10-06 | 2010-10-05 | Ricoh Company, Ltd. | Cleaning device, process cartridge and image forming apparatus |
| US7873298B2 (en) | 2007-01-10 | 2011-01-18 | Ricoh Company, Ltd. | Cleaning device, process cartridge, and image forming apparatus |
| US7929897B2 (en) | 2007-02-14 | 2011-04-19 | Ricoh Company, Ltd. | Cleaning unit, process cartridge, and image forming apparatus using the same |
| US8699898B2 (en) | 2011-03-04 | 2014-04-15 | Ricoh Company, Ltd. | Apparatus and method for changing a voltage setting for an image forming apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009042295A (en) * | 2007-08-06 | 2009-02-26 | Ricoh Co Ltd | Cleaning device, process cartridge and image forming apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57133217A (en) * | 1981-02-03 | 1982-08-17 | Kuraray Co Ltd | Fiber consisting of copolyester |
| JPS588122A (en) * | 1981-07-09 | 1983-01-18 | Kuraray Co Ltd | Conjugate fiber and its production |
| JPS6021909A (en) * | 1983-07-15 | 1985-02-04 | Unitika Ltd | Antistatic synthetic fiber |
| JPS60224812A (en) * | 1984-04-17 | 1985-11-09 | Kanebo Ltd | Electrically conductive composite fiber |
-
1988
- 1988-02-18 JP JP63036583A patent/JPH0733637B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57133217A (en) * | 1981-02-03 | 1982-08-17 | Kuraray Co Ltd | Fiber consisting of copolyester |
| JPS588122A (en) * | 1981-07-09 | 1983-01-18 | Kuraray Co Ltd | Conjugate fiber and its production |
| JPS6021909A (en) * | 1983-07-15 | 1985-02-04 | Unitika Ltd | Antistatic synthetic fiber |
| JPS60224812A (en) * | 1984-04-17 | 1985-11-09 | Kanebo Ltd | Electrically conductive composite fiber |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2037015A1 (en) * | 2006-07-03 | 2009-03-18 | Kuraray Co., Ltd. | Conductive sheath-core conjugate fiber and process for producing the same |
| EP2037015A4 (en) * | 2006-07-03 | 2009-07-15 | Kuraray Co | Conductive sheath-core conjugate fiber and process for producing the same |
| JP4902652B2 (en) * | 2006-07-03 | 2012-03-21 | 株式会社クラレ | Conductive core-sheath type composite fiber and method for producing the same |
| US7809321B2 (en) | 2006-10-06 | 2010-10-05 | Ricoh Company, Ltd. | Cleaning device, process cartridge and image forming apparatus |
| US7873298B2 (en) | 2007-01-10 | 2011-01-18 | Ricoh Company, Ltd. | Cleaning device, process cartridge, and image forming apparatus |
| US7929897B2 (en) | 2007-02-14 | 2011-04-19 | Ricoh Company, Ltd. | Cleaning unit, process cartridge, and image forming apparatus using the same |
| US8699898B2 (en) | 2011-03-04 | 2014-04-15 | Ricoh Company, Ltd. | Apparatus and method for changing a voltage setting for an image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0733637B2 (en) | 1995-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR930000241B1 (en) | Electroconductive composite fiber and process for preparation thereof | |
| JP3917524B2 (en) | Fiber composite and use thereof | |
| JPH01292116A (en) | Electrically conductive fiber and production thereof | |
| JPH01213411A (en) | Electrically conductive yarn | |
| JPH10131035A (en) | Production of electroconductive fiber | |
| JPH01183520A (en) | Electrically conductive fiber | |
| JP2004225214A (en) | Electroconductive conjugated fiber | |
| JPH10310974A (en) | Production of electrically conductive fiber | |
| JPS63219624A (en) | Electrically conductive yarn and production thereof | |
| JPS6253416A (en) | Electrically conductive fiber and production thereof | |
| JP2005194650A (en) | Conductive conjugate fiber | |
| JPS6350446B2 (en) | ||
| JPS60224813A (en) | Antistatic conjugated fiber | |
| JPH0733605B2 (en) | Conductive hollow composite fiber | |
| JP2833780B2 (en) | Conductive composite fiber | |
| JP4763451B2 (en) | Conductive composite fiber | |
| JPH10212622A (en) | Electroconductive fiber | |
| JPS63190017A (en) | Antistatic conjugate fiber | |
| JP2004044035A (en) | Conductive conjugate fiber | |
| KR950000723B1 (en) | Composite fiber having an electrical conductivity and being prepared 3 other components | |
| JPH09143821A (en) | Electroconductive fiber | |
| JPS63235525A (en) | Electrically conductive conjugated yarn | |
| JP3238535B2 (en) | Conductive composite fiber | |
| JP3113054B2 (en) | Conductive composite fiber | |
| JPH0372749B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |