发明名称 DEWATERING SCREEN AND METHOD FOR THE PRODUCTION THEREOF
摘要 The present invention relates to a dewatering screen for manufacturing paper having multi-level watermarks, having a carrier mold (54) that exhibits, in a fractional region, a multi-level relief (30) in the form of the watermark to be produced. According to the present invention, it is provided that the multi-level relief is formed by an injection-molded, perforated (40) watermark insert (30).
申请公布号 US2010175843(A1) 申请公布日期 2010.07.15
申请号 US20070517848 申请日期 2007.12.05
申请人 GIESECKE & DEVRIENT GMBH 发明人 GREGAREK ANDRE
分类号 D21H21/40;B28B1/48;B29C33/42;B29C67/08;D21F1/66 主分类号 D21H21/40
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