专利名称：PRINTED ARTICLES WITH OPTICALLY
VARIABLE PROPERTIES
发明人：KASPERCHIK, VLADEK,CHEN,
TIENTEH,SHAARAWI, MOHAMMED S.
申请号：EP10858768申请日：20101022公开号：EP2629980A4公开日：20160127
摘要：A printed article with optically variable properties that includes a printablemedia on which a printed feature has been formed with an ink composition. Said inkcomposition contains metal oxide particles that have an average particle size in the rangeof about 3 to about 180 nm and that have a refractive index superior or equal to 1.2. Theprintable media contains a bottom supporting substrate, an ink-absorbing layer and ametallized top layer with pore diameters that are smaller than the size of the metaloxide particles, and the ink composition forms, onto the printable media, a printedfeature that exhibits optically variable properties.
申请人：HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
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