JP6276179B2 - 導電性ローラ用塗料組成物、それを用いた現像ローラおよび画像形成装置 - Google Patents
導電性ローラ用塗料組成物、それを用いた現像ローラおよび画像形成装置 Download PDFInfo
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- JP6276179B2 JP6276179B2 JP2014522603A JP2014522603A JP6276179B2 JP 6276179 B2 JP6276179 B2 JP 6276179B2 JP 2014522603 A JP2014522603 A JP 2014522603A JP 2014522603 A JP2014522603 A JP 2014522603A JP 6276179 B2 JP6276179 B2 JP 6276179B2
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- developing roller
- toner
- roller
- fine particles
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- 239000003381 stabilizer Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- DZLFLBLQUQXARW-UHFFFAOYSA-N tetrabutylammonium Chemical compound CCCC[N+](CCCC)(CCCC)CCCC DZLFLBLQUQXARW-UHFFFAOYSA-N 0.000 description 1
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- JUYONNFUNDDKBE-UHFFFAOYSA-J tri(oct-2-enoyloxy)stannyl oct-2-enoate Chemical compound [Sn+4].CCCCCC=CC([O-])=O.CCCCCC=CC([O-])=O.CCCCCC=CC([O-])=O.CCCCCC=CC([O-])=O JUYONNFUNDDKBE-UHFFFAOYSA-J 0.000 description 1
- PPPHYGCRGMTZNA-UHFFFAOYSA-M trifluoromethyl sulfate Chemical compound [O-]S(=O)(=O)OC(F)(F)F PPPHYGCRGMTZNA-UHFFFAOYSA-M 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
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Description
前記微粒子がポリウレタン樹脂からなり、該微粒子のTgが−30℃以下であって、該微粒子の平均粒径が10〜16μmであり、かつ、前記樹脂成分のTgが−20℃以上0℃以下であることを特徴とするものである。
前記弾性層の外周に、上記本発明の導電性ローラ用塗料組成物が被覆されていることを特徴とするものである。
まず、本発明の導電性ローラ用塗料組成物は、ポリオールおよびイソシアネートを含む樹脂成分と、微粒子とを含有し、導電性ローラにおける表層の形成に用いられる。
トリレンジイソシアネート(TDI)とポリエーテルポリオールとから合成したウレタンプレポリマー100質量部と、アセチレンブラック2質量部とを混合して、アセチレンブラックが分散したウレタンプレポリマーを調製し、これをA成分とした。一方、ポリエーテルポリオール30質量部と、過塩素酸ナトリウム(NaClO4)0.1質量部とを70℃に加熱しながら混合し、更にポリエーテル変性シリコーンオイル(整泡剤)4.5質量部と、ジブチルスズジラウレート(触媒)0.2質量部とを混合して混合物を調製し、これをB成分とした。次に、上記A成分とB成分とをメカニカルフロス法により発泡させて、更に、芯金をセットした円筒形状の金型に注入し、RIM成形によって、発泡ポリウレタンからなる弾性層を有するローラ本体を作製した。
*2)アートパールGR400(根上工業(株)製)
*3)アートパールC400(根上工業(株)製)
*4)アートパールC800(根上工業(株)製)
*5)アートパールP400(根上工業(株)製)
*6)アートパールJB400(根上工業(株)製)
*7)フィッシャー硬度計H100Cを用いて、ビッカーズ圧子を使用し、20mN/20sで、押込み深さ1μmにて押し込んだ際の硬度を測定した。
*8)アートパールU400(根上工業(株)製)
*9)アートパールC600(根上工業(株)製)
2 弾性層
3 表層
10 現像ローラ
20 トナー
21 画像形成体
22 トナー供給ローラ
23 トナー収容部
24 成層ブレード
25 帯電ローラ
26 転写ローラ
27 クリーニング部
28 クリーニングブレード
Claims (5)
- ポリオールおよびイソシアネートを含む樹脂成分と、微粒子とを含有する導電性ローラ用塗料組成物であって、
前記微粒子がポリウレタン樹脂からなり、該微粒子のTgが−30℃以下であって、該微粒子の平均粒径が10〜16μmであり、かつ、前記樹脂成分のTgが−20℃以上0℃以下であることを特徴とする導電性ローラ用塗料組成物。 - 前記ポリオール成分100質量部に対し、前記微粒子を1.5〜6.0質量部にて含有する請求項1記載の導電性ローラ用塗料組成物。
- 前記微粒子の、押込み深さ1μmでのユニバーサル硬度が2.0以下である請求項1または2記載の導電性ローラ用塗料組成物。
- シャフトと、該シャフトの外周に担持された弾性層と、を含む現像ローラにおいて、
前記弾性層の外周に、請求項1〜3のうちいずれか一項記載の導電性ローラ用塗料組成物が被覆されていることを特徴とする現像ローラ。 - 請求項4記載の現像ローラが搭載されていることを特徴とする画像形成装置。
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US4804716A (en) * | 1983-02-07 | 1989-02-14 | E. I. Du Pont De Nemours And Company | Toughened polyoxymethylene compositions |
JP2003302827A (ja) * | 2002-04-12 | 2003-10-24 | Bridgestone Corp | 導電性ローラ及び画像形成装置 |
JP4847683B2 (ja) * | 2004-03-09 | 2011-12-28 | 住友ゴム工業株式会社 | 導電性発泡ローラの製造方法及びそれを用いた画像形成装置 |
CN101156112B (zh) * | 2005-04-07 | 2010-07-14 | 株式会社普利司通 | 导电性辊 |
JP2007233255A (ja) * | 2006-03-03 | 2007-09-13 | Tokai Rubber Ind Ltd | 現像ロール |
JP2007279574A (ja) * | 2006-04-11 | 2007-10-25 | Bridgestone Corp | 現像ローラ及びそれを備えた画像形成装置 |
JP4240119B2 (ja) * | 2006-12-22 | 2009-03-18 | 東海ゴム工業株式会社 | 現像ロール |
JP2009115952A (ja) * | 2007-11-05 | 2009-05-28 | Bridgestone Corp | 導電性ローラ及びその製造方法、並びにそれを用いた画像形成装置 |
JP5236271B2 (ja) * | 2007-12-10 | 2013-07-17 | 株式会社イノアックコーポレーション | 導電性ポリウレタンフォーム及びその製造方法並びに導電性ローラ |
JP4455671B1 (ja) * | 2008-11-18 | 2010-04-21 | キヤノン株式会社 | 現像ローラ及びその製造方法、プロセスカートリッジ、電子写真画像形成装置 |
JP2010276953A (ja) * | 2009-05-29 | 2010-12-09 | Bridgestone Corp | 現像ローラ |
JP5474708B2 (ja) * | 2010-08-31 | 2014-04-16 | 東海ゴム工業株式会社 | 電子写真機器用現像ロール |
JP5713637B2 (ja) * | 2010-11-12 | 2015-05-07 | キヤノン株式会社 | 現像ローラ、電子写真プロセスカートリッジおよび電子写真画像形成装置 |
JP5703065B2 (ja) * | 2011-02-28 | 2015-04-15 | 住友理工株式会社 | 電子写真機器用導電性部材 |
JP2012215647A (ja) * | 2011-03-31 | 2012-11-08 | Canon Inc | 現像ローラ、電子写真プロセスカートリッジ、及び電子写真画像形成装置 |
CN103649848B (zh) * | 2011-07-15 | 2017-03-01 | 佳能株式会社 | 显影剂承载构件、电子照相处理盒和电子照相图像形成设备 |
JP5253550B2 (ja) * | 2011-08-25 | 2013-07-31 | キヤノン株式会社 | 現像部材とその製造方法、および、電子写真画像形成装置 |
-
2013
- 2013-06-21 US US15/300,586 patent/US20170183510A1/en not_active Abandoned
- 2013-06-21 WO PCT/JP2013/067133 patent/WO2014002909A1/ja active Application Filing
- 2013-06-21 JP JP2014522603A patent/JP6276179B2/ja active Active
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2018
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US20170183510A1 (en) | 2017-06-29 |
WO2014002909A1 (ja) | 2014-01-03 |
JP2018106174A (ja) | 2018-07-05 |
JPWO2014002909A1 (ja) | 2016-05-30 |
JP6423553B2 (ja) | 2018-11-14 |
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