WO2007018000A1 - 導電性繊維およびブラシ - Google Patents
導電性繊維およびブラシ Download PDFInfo
- Publication number
- WO2007018000A1 WO2007018000A1 PCT/JP2006/313370 JP2006313370W WO2007018000A1 WO 2007018000 A1 WO2007018000 A1 WO 2007018000A1 JP 2006313370 W JP2006313370 W JP 2006313370W WO 2007018000 A1 WO2007018000 A1 WO 2007018000A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- conductive
- carbon black
- fiber
- electrically conductive
- component
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
Definitions
- Patent Document 1 Japanese Patent Laid-Open No. 2005-194650
- Patent Document 2 Japanese Patent Laid-Open No. 2006-9177
- An object of the present invention is to provide a conductive fiber containing conductive carbon black as a conductive substance and having a stable conductive performance with little variation in the conductive performance.
- Conductive carbon black having an average particle size of 20 111 to 70 111 and an oil absorption of 100 to 600 ml Zl00 g as specified in bracket 3 5101.
- cross-sectional resistance of the conductive fiber is preferably 10 one 8 ⁇ 10 _ 12 ⁇ / « ⁇
- the conductive fiber of the present invention is preferably a core-sheath type composite fibers.
- the conductive fiber is a core-sheath type composite fiber, at least the above ( ⁇ ⁇ ⁇ ⁇ ⁇ ), ( ⁇
- the sheath component may contain at least 10 to 35% by weight of a mixture of the above-mentioned (ii) and (ii) two types of conductive carbon black. .
- the conductive fiber of the present invention at least 10 to 35% by weight of a mixture of at least the above-mentioned (A) and (ii) two types of conductive carbon black is uniformly blended with the fiber-forming polymer serving as the matrix component.
- the whole fiber cross section may be a conductive component.
- the present invention relates to a brush using the above conductive fibers.
- the conductive fiber of the present invention can provide a conductive fiber having a more stable resistance value by containing carbon black having at least two kinds of properties when imparting conductivity.
- FIG. 1 is a schematic cross-sectional view of a conductive fiber of the present invention.
- FIG. 2 is a schematic cross-sectional view of the conductive fiber of the present invention.
- FIG. 3 is a schematic cross-sectional view of the conductive fiber of the present invention.
- FIG. 4 is a schematic cross-sectional view of the conductive fiber of the present invention.
- examples of the matrix polymer mixed with conductive carbon black include fiber-forming polymers such as nylon 6, nylon 6, 6, polyester such as polyethylene, polypropylene, and polyethylene terephthalate. It is done. These matrix polymers may be copolymerized as the third component, or may contain a defrosting agent such as titanium dioxide.
- polyester when polyester is used as the matrix polymer, it is preferable from the standpoint of yarn production when isophthalic acid adipic acid or the like is copolymerized to about 10 to 20 mol% with respect to the total acid component.
- Dalicol components such as trimethylene glycol, tetramethylene glycol, 1,5 pentanediol, and 1,6-hexanediol can be changed or copolymerized.
- the conductive fiber of the present invention may be a fiber having a single polymer strength as described above, or may be a core-sheath type composite fiber.
- the conductive component may be disposed in the core or in a good sheath.
- the ratio of the conductive component is usually in the range of 10 to 20% by weight of the whole fiber from the viewpoints of yarn production and cost.
- the core is made of a conductive component, it is particularly excellent in yarn production and fiber strength, and in addition, it is preferable in that it has excellent aesthetics by including a matting agent in the sheath polymer.
- a conductive component is arranged on the sheath, it is preferable in the sense that the surface resistance value of the conductive fiber becomes uniform.
- the polymer other than the conductive component is composed of a fiber-forming polymer.
- the fiber-forming polymer include polyester, nylon 6, nylon 6, 6, polypropylene, etc. Particularly good texture, excellent handling in the processing process, and good chemical resistance.
- polyester particularly polyethylene terephthalate.
- polyester is characterized by strong fibers compared to nylon, etc., but by adjusting the Young's modulus to 70 cNZdtex or more, the toner's power removal performance is improved when used for conductive brushes used in copiers. Good results can be obtained.
- the conductive fiber of the present invention contains carbon black in order to impart conductivity.
- Known conductive carbon black can be used, for example, acetylene black, oil furnace black, thermal black, channel Black, ketjen black, carbon nanotubes etc. are shown and these are usually dispersed in the matrix polymer Can be used.
- the matrix polymer the above-mentioned various fiber-forming polymers are used.
- the carbon black used as the conductive component is used by blending at least two types of carbon black.
- the average particle diameter of one (A) carbon black is 20 ⁇ m to 70 ⁇ m, preferably 30 to 60 ⁇ m.
- the yield in the process decreases, for example, when the carbon black is dispersed in the matrix polymer, the yarn is broken during the yarn production due to aggregation, which makes uniform dispersion difficult.
- the average particle diameter exceeds 70 m, in addition to the problem of yarn breakage during yarn production, a larger amount of carbon black is required to obtain desired conductive performance, which is not preferable in terms of cost.
- the carbon black has an oil absorption specified in JIS K 5101 of 100 to 60 Oml / lOOg, preferably ⁇ 150 to 300 ml Zl00g. If the oil absorption capacity is less than lOOmlZlOOg, the carbon black structure develops too much, resulting in a decrease in process yield, such as increased yarn breakage during yarn production due to lower fluidity. On the other hand, if it exceeds 600 mlZl 00 g, a large amount of carbon black is required for the development of conductivity because the degree of development of the structure is low, which is not preferable because of high cost.
- the above (A) conductive carbon black can be used alone or in combination of two or more.
- the conductive resistance of the force fiber which is the case where carbon black is only an ordinary single characteristic component, is 10 8 to 10 _12 ⁇ .
- the resistance value was likely to vary in the middle to high resistance region such as ⁇ . This is due to the conductivity development mechanism of carbon black.When carbon black has a low concentration, it does not have conductivity, but when the concentration exceeds a certain level, conductivity suddenly develops, and the added amount is increased. This is because it corresponds to the middle part of the behavior of saturation when raised.
- the resistance value is further stabilized by blending two or more types of carbon black having at least different characteristics.
- (A) the ratio of the average particle diameter to the above-mentioned (A) carbon black is 1.1 to 3, and the ratio of the oil absorption is 0.9 to 0.2.
- Conductive carbon is blended to stabilize the conductive resistance.
- the average particle size ratio is less than 1.1, there is no effect of the conductive resistance stabilization, and it is necessary to blend those having an average particle size ratio higher than this.
- the ratio exceeds 3, the performance on spinning is too low.
- the conductive carbon black (B) may be used alone or in combination of two or more.
- (B) Commercially available products of conductive carbon black include “Ketjen Black” manufactured by Mitsubishi Igaku, “Toka Black” manufactured by Tokai Igaku, and “Denka Black” manufactured by Denki Kagaku Kogyo.
- the mixing ratio of (A) conductive carbon black and (B) conductive carbon black depends on the desired resistance region, but usually (A) Z (B) (weight ratio) is By blending in the range of 90Z10 ⁇ 10Z90, preferably 30 ⁇ 70 ⁇ 70 ⁇ 30, the conductive resistance can be stabilized. The reason for this is not clear so far, but it is thought that blending with different particle size and structure development will slow the behavior of the change in electrical conductivity with respect to the amount of carbon added compared to single use. .
- the addition amount of the carbon black blended with the conductive component and having the component powers (i) to (ii) is preferably 10 to 35% by weight, more preferably 10 to 25% by weight. If the amount is less than 10% by weight, the electrical conductivity does not increase. On the other hand, if the amount exceeds 35% by weight, the fluidity of the polymer deteriorates, which is not preferable in the yarn production process.
- the amount of conductive carbon black added can be appropriately adjusted depending on the type of carbon black used.
- FIGS. 1-10 Examples of cross-sectional views of the conductive fiber of the present invention are shown in FIGS.
- FIG. 1 shows that the fiber-forming polymer, which is a matrix component, is uniformly blended with a mixture of at least ( ⁇ ) to ( ⁇ ) conductive carbon black having component strength, and the entire fiber cross section becomes the conductive component.
- FIGS. 2-4 is an example of a core-sheath-type conductive conjugate fiber.
- reference numeral 1 is a sheath component
- reference numeral 2 is a core component
- Figures 2 and 4 are examples in which a conductive component is disposed on the core component
- Fig. 3 is an example in which a conductive component is disposed on the sheath component.
- the tapered sharp end portion that the sheath component covers the core component
- the ratio of the portion is 5% or less of the entire outer circumference of the sheath component. If the ratio of the portion where the sheath component does not cover the core component exceeds 5% of the entire outer periphery of the sheath component, it may cause contamination such as separation of the core and sheath, or dropping of the conductive carbon black component. Increases performance.
- the fiber-forming polymer as the matrix component contains at least 10 to 35% by weight of the mixture of the above-mentioned (A) and (B) two types of conductive carbon black. Are uniformly blended so that the entire fiber cross-section is the conductive component.
- the core component contains at least 10 to 35% by weight of a mixture of the above-mentioned two types (A) and (B) of conductive carbon black.
- the sheath component may contain at least 10 to 35% by weight of a mixture of the above-mentioned two types (A) and (B) of conductive carbon black.
- the conductive fiber of the present invention has a static elimination performance excellent in fiber physical properties and durability in actual use, and is a charging brush, a static elimination brush, and a cleaning brush incorporated in office automation equipment such as a copying machine and a printer. Can be suitably used.
- the brush having such a static elimination performance is formed by weaving a conductive tape of the present invention as a pile, backing it with a conductive backing agent, and then cutting a pile tape cut to a width of 10 to 30 mm. It can be obtained by winding it around a metal rod or simply sticking a nozzle on a plate and making it into a brush shape.
- cross-sectional resistance value A sample in which Ag doutite (a conductive resin coating containing silver particles, manufactured by Fujikura Kogyo Co., Ltd.) is attached to both cross-sections of the fibers whose ends are cut in the cross-sectional direction so that the length in the fiber axis direction is 2. Ocm Is applied on an electrically insulating polyethylene terephthalate film under a condition of a temperature of 20 ° C and a relative humidity of 40%, and a DC voltage of lkV is applied using the Ag doubite adhering surface to obtain a current value flowing between both cross sections.
- the electrical resistance value (Q Zcm) was calculated according to Ohm's law.
- Conductive carbon black (A) with an average particle size of 30 ⁇ m and oil absorption of 130 ml as a conductive substance (Denka Black, manufactured by Denki Kagaku Kogyo, 10 parts by weight of conductive carbon black with an average particle size of 50 m and oil absorption of 80 ml
- B) (9 parts by weight of Denka Black manufactured by Denki Kagaku Kogyo Co., Ltd. was blended with 81 parts by weight of polyethylene terephthalate copolymerized with 15 mol% of isophthalic acid.
- polyethylene terephthalate was used as the sheath component.
- Example 1 conductive carbon black (A) having an average particle size of 30 m and an oil absorption of 130 ml was copolymerized with 15 parts by weight of Denka Black manufactured by Denki Kagaku Kogyo Co., Ltd. After blending with 85 parts by weight of the same polyethylene terephthalate as used as a conductive component, the same polyethylene terephthalate as in Example 1 was melt-extruded into the sheath component at a weight ratio of 10Z90, and the result is shown in FIG. A core-sheath type composite fiber of 50dtex / 2 4-filament with the cross section shown in the figure was obtained. When the cross-sectional resistance values were measured, the resistance values varied within the range of 5 X 10 " 9 ⁇ Zcm to 7 X 10" 10 ⁇ / cm.
- the conductive fiber of the present invention contains conductive carbon black as a conductive substance, and there is little variation in its conductive performance! / ⁇ Stable conductive performance, so it has excellent electrical properties and durability in practical use. It has high performance and can be suitably used as a charging brush, static elimination brush, or cleaning brush incorporated in a 0A device such as a copying machine or a printer.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Multicomponent Fibers (AREA)
- Artificial Filaments (AREA)
- Cleaning In Electrography (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Electrophotography Configuration And Component (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/576,966 US20090032778A1 (en) | 2005-08-11 | 2006-07-05 | Electrically conductive fiber and brush |
JP2007509788A JPWO2007018000A1 (ja) | 2005-08-11 | 2006-07-05 | 導電性繊維およびブラシ |
EP06767876A EP1806441A4 (en) | 2005-08-11 | 2006-07-05 | ELECTRICALLY CONDUCTIVE FIBER AND BRUSH |
US12/407,659 US8110126B2 (en) | 2005-08-11 | 2009-03-19 | Electrically conductive fiber and brush |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005232732 | 2005-08-11 | ||
JP2005-232732 | 2005-08-11 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/576,966 A-371-Of-International US20090032778A1 (en) | 2005-08-11 | 2006-07-05 | Electrically conductive fiber and brush |
US12/407,659 Continuation-In-Part US8110126B2 (en) | 2005-08-11 | 2009-03-19 | Electrically conductive fiber and brush |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007018000A1 true WO2007018000A1 (ja) | 2007-02-15 |
Family
ID=37727190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/313370 WO2007018000A1 (ja) | 2005-08-11 | 2006-07-05 | 導電性繊維およびブラシ |
Country Status (7)
Country | Link |
---|---|
US (1) | US20090032778A1 (ja) |
EP (1) | EP1806441A4 (ja) |
JP (3) | JPWO2007018000A1 (ja) |
KR (1) | KR20080034824A (ja) |
CN (1) | CN101080517A (ja) |
TW (1) | TW200720503A (ja) |
WO (1) | WO2007018000A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009185440A (ja) * | 2005-08-11 | 2009-08-20 | Teijin Fibers Ltd | 導電性繊維およびブラシ |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8110126B2 (en) | 2005-08-11 | 2012-02-07 | Teijin Fibers Limited | Electrically conductive fiber and brush |
WO2011108669A1 (ja) * | 2010-03-03 | 2011-09-09 | クラレリビング株式会社 | 導電性マルチフィラメント糸及び導電性ブラシ |
JP5504030B2 (ja) * | 2010-03-30 | 2014-05-28 | Kbセーレン株式会社 | 導電性複合繊維 |
JP5421219B2 (ja) * | 2010-10-28 | 2014-02-19 | 京セラドキュメントソリューションズ株式会社 | 画像形成装置用のファーブラシ、該ファーブラシを用いたクリーニング装置並びに該クリーニング装置を用いた画像形成装置および画像形成方法 |
US10410155B2 (en) * | 2015-05-01 | 2019-09-10 | Microsoft Technology Licensing, Llc | Automatic demand-driven resource scaling for relational database-as-a-service |
JP6850210B2 (ja) * | 2017-06-29 | 2021-03-31 | 住友理工株式会社 | 電子写真機器用帯電部材 |
CN108823798B (zh) * | 2018-07-27 | 2020-08-07 | 中原工学院 | 一种钼酸苯酯改性高邻位热固性酚醛基中空纳米梯度活性炭纤维膜的制备方法 |
JP6743266B1 (ja) * | 2019-12-25 | 2020-08-19 | 宇部エクシモ株式会社 | 黒色合成繊維糸 |
TWI715381B (zh) * | 2019-12-27 | 2021-01-01 | 穩得實業股份有限公司 | 纖維級導電高分子組成物及複絲纖維紗線 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000160427A (ja) * | 1998-11-27 | 2000-06-13 | Kuraray Co Ltd | 導電性セルロース系繊維 |
JP2001172825A (ja) * | 1999-10-06 | 2001-06-26 | Kuraray Co Ltd | 導電性複合繊維 |
JP2004003088A (ja) * | 2002-04-09 | 2004-01-08 | Mitsubishi Rayon Co Ltd | ポリプロピレン系導電性複合繊維及びその製造方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US3969559A (en) * | 1975-05-27 | 1976-07-13 | Monsanto Company | Man-made textile antistatic strand |
AU503665B1 (en) * | 1977-08-08 | 1979-09-13 | Kanebo Limited | Conductive composite filaments |
US4743505A (en) * | 1985-08-27 | 1988-05-10 | Teijin Limited | Electroconductive composite fiber and process for preparation thereof |
JP2933270B2 (ja) * | 1995-08-02 | 1999-08-09 | 株式会社クラレ | 電気抵抗特性の安定した導電性セルロース系繊維 |
US5689791A (en) * | 1996-07-01 | 1997-11-18 | Xerox Corporation | Electrically conductive fibers |
US5698148A (en) * | 1996-07-26 | 1997-12-16 | Basf Corporation | Process for making electrically conductive fibers |
US5998010A (en) * | 1998-01-08 | 1999-12-07 | Xerox Corporation | Mixed carbon black transfer member coatings |
EP1091026B1 (en) * | 1999-10-06 | 2004-11-24 | Kuraray Co., Ltd. | Electrically-conductive composite fiber |
JP4393722B2 (ja) * | 2001-02-09 | 2010-01-06 | 株式会社クラレ | 導電性複合繊維 |
US20050124753A1 (en) * | 2002-04-26 | 2005-06-09 | Mitsubishi Chemical Corporation | Polypropylene type aqueous dispersion, polypropylene type composite aqueous emulsion composition and its use |
US20090032778A1 (en) * | 2005-08-11 | 2009-02-05 | Teijin Fibers Limited | Electrically conductive fiber and brush |
-
2006
- 2006-07-05 US US11/576,966 patent/US20090032778A1/en not_active Abandoned
- 2006-07-05 WO PCT/JP2006/313370 patent/WO2007018000A1/ja active Application Filing
- 2006-07-05 KR KR1020077007740A patent/KR20080034824A/ko not_active Application Discontinuation
- 2006-07-05 EP EP06767876A patent/EP1806441A4/en not_active Withdrawn
- 2006-07-05 CN CNA2006800014120A patent/CN101080517A/zh active Pending
- 2006-07-05 JP JP2007509788A patent/JPWO2007018000A1/ja not_active Withdrawn
- 2006-07-11 TW TW095125276A patent/TW200720503A/zh unknown
-
2009
- 2009-03-24 JP JP2009071649A patent/JP2009185440A/ja not_active Withdrawn
-
2012
- 2012-01-18 JP JP2012008177A patent/JP2012137764A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000160427A (ja) * | 1998-11-27 | 2000-06-13 | Kuraray Co Ltd | 導電性セルロース系繊維 |
JP2001172825A (ja) * | 1999-10-06 | 2001-06-26 | Kuraray Co Ltd | 導電性複合繊維 |
JP2004003088A (ja) * | 2002-04-09 | 2004-01-08 | Mitsubishi Rayon Co Ltd | ポリプロピレン系導電性複合繊維及びその製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009185440A (ja) * | 2005-08-11 | 2009-08-20 | Teijin Fibers Ltd | 導電性繊維およびブラシ |
JP2012137764A (ja) * | 2005-08-11 | 2012-07-19 | Teijin Fibers Ltd | 導電性ブラシ |
Also Published As
Publication number | Publication date |
---|---|
TW200720503A (en) | 2007-06-01 |
EP1806441A4 (en) | 2008-08-27 |
JPWO2007018000A1 (ja) | 2009-02-19 |
CN101080517A (zh) | 2007-11-28 |
EP1806441A1 (en) | 2007-07-11 |
JP2009185440A (ja) | 2009-08-20 |
JP2012137764A (ja) | 2012-07-19 |
US20090032778A1 (en) | 2009-02-05 |
KR20080034824A (ko) | 2008-04-22 |
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