Coated substrate drying system with magnetic particle orientation

An apparatus for drying a coated substrate, wherein the coated substrate comprises magnetic particles, comprising:

• a condensing surface locatable spaced from and facing the substrate which substantially corresponds to the path of the substrate in the longitudinal direction to create a longitudinal gap between the substrate and the condensing surface;
• means for evaporating the liquid from the substrate to create a vapor;
• means for transporting the vapor to the condensing surface without requiring applied convection;
• means for condensing the vapor on the condensing surface to create a condensate;
• means for removing, using more than gravity, the condensate from the condensing surface without allowing non-uniformities of the condensate film to occur;
• and
• at least one magnetic field generator located outside of the space between the condensing surface and the coated substrate.

An apparatus for drying a coating on a substrate, wherein the coating comprises particles in a liquid, the particles being capable of being affected by a magnetic field, the apparatus comprising:

• a condensing surface locatable spaced from the substrate along the path of the substrate to create a gap between the substrate and the condensing surface;
• means for evaporating the liquid from the coating to create a vapor;
• means for condensing the vapor on the condensing surface to create a condensate;
• and
• a magnetic field generator located outside of the space between the condensing surface and the coated substrate for imposing a magnetic field upon the particles in the coating.

A method for drying a coating on a substrate, wherein the coating comprises particles in a liquid, the particles being capable of being affected by a magnetic field, the method comprising the steps of:

• locating a condensing surface spaced from the substrate along the path of the substrate to create a gap between the substrate and the condensing surface;
• evaporating the liquid from the coating to create a vapor;
• condensing the vapor on the condensing surface to create a condensate;
• and
• creating a magnetic field from outside of the space between the condensing surface and the coated substrate and imposing the field upon the particles in the coating.