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liquid media consist of inks, which are applied in fine lines with pens
or as washes with brushes, and of paints, which are traditionally applied
with brushes and are primarily used for color and shading, and less often
for linear indications of form. Inks are water-based, and the coloring agent
is usually some form of carbon, although sepia ink is made from the natural
dye expelled by the cuttlefish as camouflage. The white pigments which are
an essential adjunct of dark inks are manufactured from metallic substances,
either lead or zinc. Colored paints, whether made by hand in the workshop
from natural materials or manufactured, as they are today, are produced
with an extensive variety materials and processes. |
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