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公开(公告)号:US20210402664A1
公开(公告)日:2021-12-30
申请号:US17279306
申请日:2019-09-13
发明人: Yoshikazu Nagae , Yuuka Tomita , Tadashi Matsumoto
摘要: A silicone embossing rubber roller has no fine depression defects on the surface and, furthermore, is not liable to produce protrusions on an embossed plastic film surface. The silicone rubber roller is such that the silicone rubber layer on the surface contains spherical solid particles, and the spherical solid particles having a particle size of 0.8 μm or smaller and the spherical solid particles having a particle size of 30 μm or larger respectively occupy 1% or less of the volume of all the spherical solid particles.