Direct dyes feem ntau pheej yig thiab siv tau yooj yim, thiab lawv tuaj yeem tso cov xim ci.Washfastness tsis zoo tab sis tuaj yeem txhim kho los ntawm kev kho mob tom qab.Feem ntau cov pob dyes muag rau hauv tsev siv yog cov dyes ncaj qha.