現像ロール被覆用ゴム部材及び画像形成装置用現像ロールの製造方法

Japanese Patent JP5878268

B2

An object is to provide a rubber member for coating a developing roll which is formed a uniform rough surface at a surface of the developing roll, does exert neither damage nor toner stress to the mating member or the toner while maintaining flexibility, is possible to secure a thickness which can sufficiently avoid the effect of the rubber, and can realize non-tackiness and low friction, which can be solved by a rubber member for coating a developing roll which is the rubber member for coating a developing roll obtained by coating a coating layer 13 component at around a developing roll having a rubber substrate layer 12 and curing the same, wherein the coating layer 13 component comprises a liquid binder which contains at least a polyol, an isocyanate compound and reactive silicone oil, silicone rubber particles 101 having a hardness (JIS K6253: 1997) by Durometer A (instantaneous) of 20 to 80 degree and a rubber particle size of 0.2 to 10 µm, and a diluting solvent, and a ratio of a thickness of the coating layer 13 after curing and a diameter of the rubber particles 101 satisfies rubber particles 101 diameter/coating layer 13 thickness<0.3.

Toshihiro Tora
Atsushi Ikeda
Nozomu Suzuki
Tomohiro Kondo
God saki Shinobi
Inukai Gouki
Aurai
Nguyen Phu Vet

JP2015540950A

March 08, 2016

November 06, 2014

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NOK CORPORATION
Shinji Tech Co., Ltd.

G03G15/08

JP2012252215A	2012-12-20
JP2007148100A	2007-06-14
JP2005352017A	2005-12-22
JP2004191561A	2004-07-08
JPH11242383A	1999-09-07
JP2007169411A	2007-07-05
JP2012252215A	2012-12-20
JP2007148100A	2007-06-14
JP2005352017A	2005-12-22
JP2004191561A	2004-07-08
JPH11242383A	1999-09-07
JP2007169411A	2007-07-05

Eiichi Maruyama

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