发明名称 |
APPARATUS FOR ORIENTING MAGNETIC FLAKES |
摘要 |
A printing apparatus includes a magnetic rotatable roller with a smooth even outer surface for aligning magnetic flakes in a carrier, such as an ink vehicle or a paint vehicle to create optically variable images in a high-speed, linear printing operation. Images can provide security features on high-value documents, such as bank notes. Magnetic flakes in the ink are aligned using magnetic portions of the roller, that can be formed by permanent magnets embedded in a non-magnetic roller body, or selectively magnetized portions of a flexible magnetic cover of the roller. In some embodiments, the roller is assembled for a plurality of interchangeable sections, which can include spinning magnets. Selected orientation of the magnetic pigment flakes can achieve a variety of illusive optical effects that are useful for decorative or security applications. |
申请公布号 |
EP3133133(A1) |
申请公布日期 |
2017.02.22 |
申请号 |
EP20160180975 |
申请日期 |
2007.01.16 |
申请人 |
Viavi Solutions Inc. |
发明人 |
RAKSHA, Vladimir P.;HOLMAN, Jay M.;COOMBS, Paul G.;MARKANTES, Charles T.;PHILLIPS, Roger W. |
分类号 |
C09J11/02;B05D3/00;B05D5/06;G02B5/08;G03H1/00 |
主分类号 |
C09J11/02 |
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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