Assertion: coloring material | /r/HasProperty | black
Facets:
value: in color
type: OTHER
Source sentences:
text: Starting from this colored complex, the coloring material thus formed is black in color.
text: According to a preferred implementation of the process of the invention in which a coloring material which is black in color is prepared from a tannin/iron colored complex, said material is prepared by the following stages:
text: The coloring material obtained according to example 1 was deep black in color.