Synztec Co., Ltd.

Asami Toki

Naoki Hirakawa

The method for performing surface treatment of a rubber member includes impregnating a rubber member with a first surface-treatment liquid containing an isocyanate component and an organic solvent, to thereby form a first impregnation layer, and sequentially treating a surface of the rubber member, without exposure to air, with a second surface-treatment liquid for partially removing the isocyanate component present in the first impregnation layer.

Method and apparatus for performing surface treatment of rubber member

The conductive rubber member of the invention has a conductive elastic layer to which conductivity has been imparted and which serves as an outermost layer, and a surface-treated layer formed through impregnating a surface of the conductive elastic layer with a surface-treatment liquid containing at least an isocyanate component and an organic solvent, wherein the surface-treated layer is formed of an upper portion on the outermost side, and a lower portion beneath the upper portion, the upper portion has a density of the isocyanate component which is greater on the inner side than on the surface side within the upper portion, and the lower portion has a density of the isocyanate component that gradually decreases inwardly.

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Tokyo, Japan

Asami Toki