- poor and 5
being excellent lightfastness. On ASTM
scale the
lightfastness is
rated between I-V. I is
excellent lightfastness and it
corresponds to ratings...
- student-grade to professional-grade.
Concentration of
pigments in the core,
lightfastness of the pigments,
durability of the
colored pencil, and
softness of the...
- for
colour fastness before using bleach or
other cleaning products.
Lightfastness, wash fastness, and rub
fastness are the main
forms of
colour fastness...
-
original vermilion) with
greatly improved lightfastness.
Cadmium pigments are
known for
excellent lightfastness,
although the
lighter shades can fade in...
- has no
known health hazards and is
considered non-toxic, with an ASTM
lightfastness rating of I. It is more
opaque and less
toxic than
other black pigments...
-
rhodamine B. They are
mainly used to dye
paper and inks, but they lack the
lightfastness for
fabric dyeing.
Aside from
their major applications, they are often...
- properties,
mainly in the
yellow to red range, as well as good
lightfastness. The
lightfastness depends not only on the
properties of the
organic azo compound...
-
which became known as the
color alizarin crimson. Its
consistency and
lightfastness quickly made it a
favourite red
pigment for artists.
Alizarin crimson...
-
increased the
spectrum of
available colors, and many have a high
level of
lightfastness. When oil
paint was
first introduced in the arts,
basically the same...
-
Verdigris pigment is
lightfast in oil paint, as
numerous examples of 15th-century
paintings show. However, its
lightfastness and air
resistance are...
