Patent ID: 6506456
Filing Date: 2003-01-14
Classification: A61F,B05B,B05D

Abstract:
A method for application of a fluid on a substrate formed as a film or web or laminate comprising the steps oflocating said substrate between two spaced apart means for generating an electrostatic field; generating an electrostatic field on each side of said substrate; introducing, on at least one side of said substrate, a fluid as droplets for application to said substrate into said electrostatic field, forming electrostatically charged droplets; directing said electrostatically charged droplets based upon a predetermined pattern onto said at least one side of said substrate, the directing controlled by a computer generated signal; and causing said electrostatically charged droplets to migrate from said one side of said substrate into an interior portion of said substrate by the computer controlled electrostatic field on the other side of said substrate, resulting in chemically generated anisotropy through the thickness of the substrate.