WO2008143012A1 - 導電性ローラ及び導電性ローラの製造方法 - Google Patents
導電性ローラ及び導電性ローラの製造方法 Download PDFInfo
- Publication number
- WO2008143012A1 WO2008143012A1 PCT/JP2008/058562 JP2008058562W WO2008143012A1 WO 2008143012 A1 WO2008143012 A1 WO 2008143012A1 JP 2008058562 W JP2008058562 W JP 2008058562W WO 2008143012 A1 WO2008143012 A1 WO 2008143012A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- density
- elastic layer
- layer
- conductive roller
- polyurethane foam
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
- G03G15/0208—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus
- G03G15/0216—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers
- G03G15/0233—Structure, details of the charging member, e.g. chemical composition, surface properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/0058—≥50 and <150kg/m3
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
ポリオール成分とイソシアネート成分とを含むポリウレタン原料から機械撹拌発泡により得られるポリウレタン発泡体からなる弾性層を有する導電性ローラにおいて、上記弾性層を形成するポリウレタン発泡体が、表面から深さ0.05mmまでの密度が0.75~0.99g/cm3、厚さ方向中央部の厚さ0.05mm範囲の密度が0.2~0.7g/cm3で、かつこれら表面部密度と中央部密度との差が0.25g/cm3以上の発泡体であることを特徴とする導電性ローラを提供する。弾性層を形成するポリウレタン発泡体の密度分布を上記のように調整したことにより、弾性層の表面近傍の密度が高く弾性層表面に現れる気泡の穴が小さく、少ないと共に、厚さ方向中央部の密度が比較的低く良好な柔軟性を有しており、従来弾性層と樹脂塗膜層との間に形成されていた目止め層を省略してこの弾性層上に直接樹脂塗膜層を形成し、製造コストの低減化を図ることができる。
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007126609A JP4998717B2 (ja) | 2007-05-11 | 2007-05-11 | 発泡弾性体及びそれを用いた導電性ローラ |
JP2007126584A JP5041142B2 (ja) | 2007-05-11 | 2007-05-11 | 導電性ローラ及び導電性ローラの製造方法 |
JP2007-126584 | 2007-05-11 | ||
JP2007-126609 | 2007-05-11 | ||
JP2007211875A JP2009045770A (ja) | 2007-08-15 | 2007-08-15 | 弾性体ローラの製造方法 |
JP2007-211875 | 2007-08-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008143012A1 true WO2008143012A1 (ja) | 2008-11-27 |
Family
ID=40031724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/058562 WO2008143012A1 (ja) | 2007-05-11 | 2008-05-08 | 導電性ローラ及び導電性ローラの製造方法 |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2008143012A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010026373A (ja) * | 2008-07-23 | 2010-02-04 | Shin Etsu Polymer Co Ltd | 弾性ローラ及び定着装置 |
KR20150038151A (ko) * | 2012-07-31 | 2015-04-08 | 캐논 가부시끼가이샤 | 전자 사진용 부재 및 전자 사진 장치 |
CN105027007A (zh) * | 2013-03-05 | 2015-11-04 | 株式会社普利司通 | 辊及其制造方法、和使用该辊的图像形成设备 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0546020A (ja) * | 1991-03-22 | 1993-02-26 | Seiko Epson Corp | 現像装置 |
JPH0798549A (ja) * | 1993-05-19 | 1995-04-11 | Bridgestone Corp | 導電性ローラ |
JP2002363237A (ja) * | 2001-06-07 | 2002-12-18 | Bridgestone Corp | 導電性ポリウレタンフォーム部材 |
JP2003195597A (ja) * | 2001-12-27 | 2003-07-09 | Canon Inc | 導電性ローラ、その製造方法及び該ローラを用いた画像形成装置 |
JP2005036975A (ja) * | 2003-06-27 | 2005-02-10 | Matsushita Electric Ind Co Ltd | 断熱材と、その製造方法、及びその断熱材を使用した機器 |
-
2008
- 2008-05-08 WO PCT/JP2008/058562 patent/WO2008143012A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0546020A (ja) * | 1991-03-22 | 1993-02-26 | Seiko Epson Corp | 現像装置 |
JPH0798549A (ja) * | 1993-05-19 | 1995-04-11 | Bridgestone Corp | 導電性ローラ |
JP2002363237A (ja) * | 2001-06-07 | 2002-12-18 | Bridgestone Corp | 導電性ポリウレタンフォーム部材 |
JP2003195597A (ja) * | 2001-12-27 | 2003-07-09 | Canon Inc | 導電性ローラ、その製造方法及び該ローラを用いた画像形成装置 |
JP2005036975A (ja) * | 2003-06-27 | 2005-02-10 | Matsushita Electric Ind Co Ltd | 断熱材と、その製造方法、及びその断熱材を使用した機器 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010026373A (ja) * | 2008-07-23 | 2010-02-04 | Shin Etsu Polymer Co Ltd | 弾性ローラ及び定着装置 |
KR20150038151A (ko) * | 2012-07-31 | 2015-04-08 | 캐논 가부시끼가이샤 | 전자 사진용 부재 및 전자 사진 장치 |
EP2881797A4 (en) * | 2012-07-31 | 2016-06-22 | Canon Kk | ELECTROPHOTOGRAPHIC ELEMENT AND ELECTROPHOTOGRAPHIC DEVICE |
KR101686358B1 (ko) | 2012-07-31 | 2016-12-13 | 캐논 가부시끼가이샤 | 전자 사진용 부재 및 전자 사진 장치 |
CN105027007A (zh) * | 2013-03-05 | 2015-11-04 | 株式会社普利司通 | 辊及其制造方法、和使用该辊的图像形成设备 |
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