I started out my attempt to learn how to create a color gradation in moku hanga, by reading the method described in The Art and Craft of Woodblock Prinmaking.
Next I used the maru bake brush to blend the pigment and the nori. I swiped the brush in small circles at first and ended with a side to side motion, gradually moving toward the center of the block where there was no pigment and only nori and water.
It took a few prints before the block became “seasoned” enough to print well. I noticed that too much water caused spots in the print and too little water cause lines. I had to practice to get the right combination. Things got a bit messy as I swiped the brush from side to side, so I used masking tape to protect the edges. I still had to wipe the sides off, but the tape helped keep things under control.