System and method for forming an image on a substrate
AssigneeViavi Solutions Inc.
InventorsVladimir P. Raksha, Curtis R. Hruska
Life of this patent
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Abstract
A scanning laser having a wavelength compatible with a coating binder so as to cure it as the laser scans and irradiates the coating on a moving web. A system and method for curing flakes by providing a scanning laser which scans across a moving coated substrate in a magnetic field allows images to be formed as magnetically aligned flakes are cured into a fixed position. The images have regions of cured aligned flakes. The scanning laser cures the magnetically aligned flakes within it region it irradiates. Alternatively an array of lasers can be used wherein individual lasers can be switched on and off to fix irradiated coating as a moving web is moved at a high speed.
Claims1
A method, comprising:
- moving a substrate in a first direction, wherein the substrate includes at least one coating region including magnetically alignable flakes;
- applying a magnetic or electric field to the substrate;
- and
- selectively curing particular regions of the magnetically alignable flakes as the substrate is moving through the magnetic field.
Dependencies are inferred from the claim text.