Ma muli o ka piʻi ʻana o ke kumu kūʻai o ka aniline maka, ua piʻi nui nā kumukūʻai o Solvent Black 5 a me Solvent Black 7, a ua paʻa ka lako o ia mau mea.
Eia kekahi, ua piʻi ke kumukūʻai o ka mea maka H acid.ʻO ka hopena, ua piʻi iki ke kumukūʻai o Disperse Black EXSF a me Disperse Black ECO mai ka hapalua mahina i hala.