Pretpostavljam da se radi o biljci "broć"

The coloring matters employed for dyeing red are archil, madder, carthamus, kermes, cochineal, and Brazilwood. Cotton and linen are dyed red with madder. The process was borrowed from the East; hence the color is often called Adrianople, or Turkey red. The cloth is first impregnated with oil, then with galls, and lastly with alum. It is then boiled for an hour in a decoction of madder which is commonly mixed with a quantity of blood. After the cloth is dyed it is plunged into a soda lye, in order to brighten the color. The red given by this process is very permanent, and when properly conducted it is exceedingly beautiful. The whole difficulty consists in the application of the mordant, which is by far the most complicated employed in the whole art of dyeing.

Drevni Egipćani su prvi pokušali bojiti tekstil koristeći korijen biljke broć (ivanjsko cvijeće), koja sadrži dvadesetak raznih crvenih nijansi. Uskoro će dobiti crvenožutu boju koju će stoljećima koristiti za bojenje odjeće i natapanje specijalnih traka koje se koriste za umotavanje mumija. No, ova boja ima jedan nedostatak, u dodiru s vodom ona se otapa, blijedi i nestaje. Kasnije će tkaninu impregnirati solima aluminija ili broma koje se trajno vezuju za tekstilna vlakna.