Product name:Indigo powder
Active ingredient:color scale Content:*5 Detection method:UV Product description:
We can see dark blue powder with our naked eyes.It is water-fast.
It is absolute a natural pigment abstracted from the leaves of
Polygomum tinctorium Lour e.g. blue Polygonum,blue tea,
Strobilanthes cusia, woad by modern biotechnology.Widely used in
every kinds of textile dyeing as blue coloring.Indigo is very
popular with people for thousands of years as the rich color and
the fastness.
