Mordant Dyes

mordentdyes
Mordant Dyes

Mordant dyes are those dyes which require a mordant in their application and which upon combination with the mordant deposit insoluble color on the substrate, e.g., dyes with metal chelating groups. Like the name suggests these dyes require a mordant. Mordants are substances of organic or inorganic origin which combine with the coloring matter and are used to fix the same in the production of the color. For the purpose of this class, such materials as oils and sulfonated oils, soaps, fats and higher acids, are not generally considered as mordants, but as coming within the scope of “assistants” in dyeing. The mordant substances include such acids as tannic acid, sumac, gall nuts, bark extracts, oleic and stearic acids, and Turkey red oil; and metallic substances such as various combinations or soluble salts of chromium, aluminum, iron, copper, and tin. The latter, the metallic mordants, are more used than the acid mordants. Mordant improves the fastness of the dye on the fibre such as water, light and perspiration fastness.

SHADES PRODUCT NAME C. I. NAME
YELLOW G MORDANT YELLOW 1
YELLOW H MORDANT YELLOW 10
ORANGE G MORDANT ORANGE 6
RED WR MORDANT RED 3
RED B MORDANT RED 7
BRILL RED BR MORDANT RED 15
BROWN R H/C MORDANT BROWN 33
GREEN G MORDANT GREEN 17
BLACK A MORDANT BLACK 1
BLACK T MORDANT BLACK 11
BLUE BLACK RSS MORDANT BLACK 17