The continuous tone blended color in
the upper
part of this print was applied with a printing
hand roller, rolling left-to-right, back and forth,
with a more saturated color blending into a
transparent ink at the middle.
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Printers can achieve a continuous gradation in tone
by several means, including careful wiping of the plate. Most gradation in
tone, for a gradual, continuous change, is done with a roller or brayer
and it's called "rainbow rolling" by many hand printers. In the
trade it's called "split fountain", which means two or more
colors are rolled out so that they blend together.
One example is the print at the left that in which I used a 4-inch
lithographer's smooth hand roller on the copper etched plate. The image at
the bottom, by the way, was Japanese-style woodcut, which is another way
to get continuous tones.
Try another answer, please.
- GM
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