Device and method for coloring anode coatings using the device

A method for coloring anode coatings using the device, comprising:

• providing a device, the device comprising a container, supporting structure and a adjustable magnetic field generator;
• supporting structure the adjustable magnetic field generator being adjacent to the container and having one magnetic pole adjacent a wall of the container and another magnetic pole away from the wall of the container, the adjustable magnetic field generator comprising a magnet;
• providing a coloration solution containing magnetic pigment, the coloration solution held in the container;
• providing a workpiece, the workpiece comprising a surface coated with an anode coating;
• coloring the workpiece;
• gradually decreasing the intensity of magnetic field applied to the container from the container wall adjacent the magnetic pole of the magnet to the opposite container wall by the adjustable magnetic field generator.