公开(公告)号：US09827805B2

公开(公告)日：2017-11-28

申请号：US14710108

申请日：2015-05-12

Applicant: Viavi Solutions Inc.

Inventor： Alberto Argoitia ,  Cornelis Jan Delst ,  Patrick Laden

IPC: B42D25/369 ,  B05D3/00 ,  H01F7/02 ,  B05D5/06 ,  B05D1/16

CPC classification number: B42D25/369 ,  B05D1/16 ,  B05D3/20 ,  B05D3/203 ,  B05D5/065 ,  B05D2451/00 ,  H01F7/0273 ,  Y10T428/24802 ,  Y10T428/24893 ,  B05D2401/40 ,  B05D2401/32

Abstract: An optically variable device may be manufactured by aligning magnetic flakes on a surface of an adhesive layer by applying the flakes onto the adhesive layer surface in presence of a magnetic field, and curing the adhesive layer having magnetic flakes adhered to the adhesive layer. When cured, the adhesive layer holds the magnetic flakes oriented, enabling subsequent encapsulation of the oriented magnetic flakes in a coating layer on the adhesive layer, without a substantial loss of orientation of the magnetic flakes.