Ngenxa yokwenyuka kwentengo ye-aniline yezinto ezingavuthiwe, amanani entengo ye-Solvent Black 5 kanye ne-Solvent Black 7 akhuphuke kakhulu, futhi ukunikezwa kwawo bekuqinile.
Ngaphezu kwalokho, intengo ye-H acid eluhlaza yaphakama.Ngenxa yalokho, intengo ye-Disperse Black EXSF kanye ne-Disperse Black ECO inyuke kancane isuka engxenyeni yenyanga edlule.