INK COMPOSITION COMPRISING FIRST AND SECOND OPTICALLY VARIABLE PIGMENTS
摘要
This invention relates to an ink composition comprising two different types of optically variable pigments having a viewing angle dependent shift of colour.
申请公布号
WO0022049(A1)
申请公布日期
2000.04.20
申请号
WO1999EP07572
申请日期
1999.10.08
申请人
SICPA HOLDING S.A.;BLEIKOLM, ANTON;ROZUMEK, OLIVIER;MUELLER, EDGAR
