Indigo powder

Product name:Indigo powder

Active ingredient:color scale

Content:85

Detection method:UV

Packaging:cardboard drums, with double aseptic food poly bags inside. Or by cartons, with vacual aseptic food poly bags inside, 20kgs per carton with 8 bags inside,2.5kg per bag.

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.