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    • 7. 发明申请
    • PAPER FEED ROLLER
    • 纸送料滚筒
    • US20160130098A1
    • 2016-05-12
    • US14996591
    • 2016-01-15
    • SUMITOMO RIKO COMPANY LIMITED
    • Yuma YoshidaAtsuhiro KawanoKuniaki DoiSatoshi Suzuki
    • B65H3/06G01R29/24
    • B65H3/0638B65H3/52B65H2404/186G01R29/24
    • A paper feed roller including an elastic layer composed of thermosetting polyurethane containing a plasticizer, wherein an amount of the plasticizer is within a range of 10 to 50 pts. mass based on 100 pts. mass of the thermosetting polyurethane, and a surface residual charge on the elastic layer is within a range of 90 to 170 V. The surface residual charge is a value determined by single-point measurement of a surface potential of the elastic layer. The measurement includes rotating the paper feed roller in a circumferential direction, electrifying the surface of the elastic layer with a corotron while rotating the paper feed roller, and measuring the surface potential at a center point on the paper feed roller in a roller axis direction in a position where the paper feed roller is rotated by 90 degrees from a position where the surface of the elastic layer is electrified.
    • 一种供纸辊,其包括由含有增塑剂的热固性聚氨酯构成的弹性层,其中所述增塑剂的量在10至50个点的范围内。 质量基于100点。 热固性聚氨酯的质量和弹性层上的表面残留电荷在90〜170V的范围内。表面残留电荷是通过弹性层的表面电位的单点测定而确定的值。 该测量包括沿圆周方向旋转送纸辊,同时旋转送纸辊使旋转机构的表面带动旋转辊,并且在滚筒轴线方向上测量供纸辊上的中心点处的表面电位 该供纸辊从弹性层的表面带电的位置旋转90度的位置。