I-Sulfur Black BR luhlobo oluthile lwedayi emnyama yesulfure esetyenziswa rhoqo kushishino lwelaphu ukudaya umqhaphu kunye nezinye iifiber ze-cellulosic. Ngumbala omnyama omnyama kunye neempawu eziphezulu zokungaguquguquki, okwenza ukuba ulungele ukudaya amalaphu afuna umbala omnyama ohlala ixesha elide kunye no-fade-resistant. Sulphur emnyama ebomvu kunye nesalfure emnyama bluish zombini zamkelwe ngabathengi. Uninzi lwabantu luthenga isulfure emnyama engama-220% esemgangathweni.
I-Sulfur Black BR ikwabizwa ngokuba yi-SUlfur BLACK 1, esetyenziswa ngokuqhelekileyo kusetyenziswa inkqubo eyaziwa ngokuba yi-sulphur dyeing, ebandakanya ukuntywiliselwa kwelaphu kwibhafu yokunciphisa equlethe idayi kunye nezinye izongezo zekhemikhali. Ebudeni benkqubo yokudaya, idayi emnyama yesalfure iye yancitshiswa ngemichiza ukuze ikwazi ukunyibilika ize emva koko idibane nemicu yelaphu ukuze yenze inhlanganisela yombala.