发明名称 |
SHEET MATERIAL COMPRISING AT LEAST ONE WATERMARK HAVING A COLORED SHADE |
摘要 |
The present invention relates to a sheet material comprising at least one first layer defining an outer surface of the sheet material and having at least one first color, at least one second layer comprising at least one watermark and having at least one second color, the first and second colors having at least different saturations and/or hue angles.
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申请公布号 |
US2009301676(A1) |
申请公布日期 |
2009.12.10 |
申请号 |
US20070278560 |
申请日期 |
2007.02.09 |
申请人 |
ARJOWIGGINS;ARJOWIGGINS SECURITY |
发明人 |
ROSSET HENRI;THIERRY IVAN |
分类号 |
D21H21/40 |
主分类号 |
D21H21/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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