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Title:
CLEANING BLADE
Document Type and Number:
WIPO Patent Application WO/2016/208601
Kind Code:
A1
Abstract:
Provided is a cleaning blade that has an elastic body, which is a molded body of a rubber substrate, and has at least a surface treatment layer at a position that comes into contact with a contact-receiving body of the elastic body. The surface treatment layer is formed by impregnating a surface part of the elastic body with a surface treatment liquid containing an isocyanate compound and an organic solvent, and curing same. The surface treatment layer is inclined such that the impregnation concentration of the surface treatment liquid in the surface treatment layer gradually decreases from the surface in the depth direction. The elastic modulus of the surface treatment layer does not exceed 60 MPa. The elastic modulus of the elastic body is 3 MPa to 35 MPa. The difference between the elastic modulus of the surface treatment layer and the elastic modulus of the elastic body is 1 MPa to 25 MPa. An index M is 1 to 1100, said index M being obtained by the following formula from the elongation at break (%) at 23°C of the elastic body, the tanδ peak temperature (°C) at 1 Hz of the elastic body, and the impregnation depth (μm) of the surface treatment liquid. Index M = the elongation at break (%) at 23°C of the elastic body × the tanδ peak temperature (°C) at 1 Hz of the elastic body × (-1) / the impregnation depth (μm) of the surface treatment liquid.

Inventors:
OSAJIMA, Takeshi (5-2931, Urago-cho, Yokosuka-sh, Kanagawa 62, 〒2370062, JP)
WANG, Shuang (5-2931, Urago-cho, Yokosuka-sh, Kanagawa 62, 〒2370062, JP)
ABE, Shuji (5-2931, Urago-cho, Yokosuka-sh, Kanagawa 62, 〒2370062, JP)
SATO, Hiroyuki (5-2931, Urago-cho, Yokosuka-sh, Kanagawa 62, 〒2370062, JP)
Application Number:
JP2016/068439
Publication Date:
December 29, 2016
Filing Date:
June 21, 2016
Export Citation:
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Assignee:
NOK CORPORATION (12-15, Shibadaimon 1-chome Minato-k, Tokyo 85, 〒1058585, JP)
SYNZTEC CO., LTD. (12-15, Shibadaimon 1-chome Minato-k, Tokyo 12, 〒1050012, JP)
International Classes:
G03G21/00; B05C21/00; G03G15/00
Attorney, Agent or Firm:
KURIHARA, Hiroyuki et al. (Kurihara International Patent Office, Iwasaki Bldg. 6F 3-15, Hiroo 1-chome, Shibuya-k, Tokyo 12, 〒1500012, JP)
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