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1
1036
Enquire within upon everything
·
Robert Kemp Philp
931
2683.
General
Observations.
The
various
shades
produced
by
colouring
matters
may
be
classed
in
one
or
other
of
the
following
groups:
1.
Blues
}
2.
Reds
}
Simple.
3.
Yellows
}
4.
Violets
}
5.
Orange
colours
}
Binary.
6.
Greens
}
7.
Compound
colours
}
8.
Black
}
Ternary.
Some
colours
adhere
at
once
to
the
stuff,
and
are
called
substantial
colours;
while
others
require
that
the
material
to
be
dyed
should
undergo
some
previous
preparation
in
order
to
render
it
permanent.
The
substances
used
to
fix
the
colouring
matters
are
called
mordants,
which
should
possess
four
qualifications:
i.
They
should
possess
an
equal
affinity
for
the
fibre
of
the
material
and
the
colouring
matter.
ii.
They
should
be
incapable
of
injuring
or
destroying
either
by
prolonged
action,
iii.
They
should
form,
with
the
colour,
a
compound
capable
of
resisting
the
action
of
air
and
water.
iv.
They
should
be
capable
of
readily
conforming
to
the
various
operations
of
the
dyer.
2684.
The
Mordants.
For
the
reasons
just
given,
the
acetate
or
tartrate
of
iron
is
preferable
to
the
sulphate;
and
the
acetate
or
tartrate
of
alumina
to
alum.
For
reds,
yellows,
green,
and
pinks,
aluminous
mordants
are
to
be
used.
For
blacks,
browns,
puces,
and
violets,
the
acetate
or
tartrate
of
iron
must
be
employed.
For
scarlets,
use
a
tin
mordant,
made
by
dissolving
in
strong
nitric
acid
one-eighth
of
its
weight
of
sal-ammoniac,
then
adding
by
degrees
one-eighth
of
its
weight
of
tin,
and
diluting
the
solution
with
one-fourth
of
its
weight
of
water.
Marker
Marker
Fine marker
White-out
Fine white-out
Circle
Paint
Unmarker
Hand
Scalpel
Dice
Sieve
Purify
Undo
Redo
Start over
