发明名称 |
Cleaning blade, image forming apparatus, and process cartridge |
摘要 |
A cleaning blade includes an elastic member configured to come into contact with a surface of a member to be cleaned and remove residual matter adhering to the surface of the member to be cleaned. The elastic member satisfies the following requirements a and b: a. The elastic member has a contact portion configured to come into contact with the surface of the member to be cleaned and the contact portion includes a modified layer that contains a cured product of an ultraviolet curable composition containing a (meth)acrylate compound; and b. A value obtained by normalizing a peak area ratio SA/SB of a modified portion with a peak area ratio SA′/SB′ of a portion outside the modified layer is 1.5 or more and 10 or less where SA is a peak area value at 1162 cm−1 and SB is a peak area value at 1533 cm−1 obtained by infrared microspectrometry, and the modified portion is a region that extends 100 μm in a contact portion thickness inward direction from the contact portion on a plane that lies at an equal distance from two surfaces constituting the contact portion. |
申请公布号 |
US9146524(B2) |
申请公布日期 |
2015.09.29 |
申请号 |
US201414323018 |
申请日期 |
2014.07.03 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
Gohda Shohei;Nohsho Shinji;Gondoh Masanobu;Toyama Kaori;Sakon Yohta;Ohmori Masahiro |
分类号 |
G03G21/18;G03G21/00 |
主分类号 |
G03G21/18 |
代理机构 |
Cooper & Duham LLP |
代理人 |
Cooper & Duham LLP |
主权项 |
1. A cleaning blade comprising:
an elastic member configured to come into contact with a surface of a member to be cleaned and remove residual matter adhering to the surface of the member to be cleaned, the elastic member satisfying requirements a and b below: a. The elastic member has a contact portion configured to come into contact with the surface of the member to be cleaned and the contact portion includes a modified layer that contains a cured product of an ultraviolet curable composition containing a (meth)acrylate compound; and b. A value obtained by normalizing a peak area ratio SA/SB of a modified portion with a peak area ratio SA′/SB′ of a portion outside the modified layer is 1.5 or more and 10 or less where SA is a peak area value at 1162 cm−1 and SB is a peak area value at 1533 cm−1 obtained by infrared microspectrometry, and the modified portion is a region that extends 100 μm in a contact portion thickness inward direction from the contact portion on a plane that lies at an equal distance from two surfaces constituting the contact portion. |
地址 |
Tokyo JP |