1.Economical dyeing with excellent tinctorial value and good build up properties.
2.Good overall colorfastness properties such as wash fastness, light fastness, perspiration fastness etc. Moderate fastness to crocking and poor fastness to chlorines bleaching agents such as bleaching powder and sodium hypochlorite.
3.Limited shade range to produce only dull shades and there is no true red dye in the range.
4.These dyes can be applied by exhaust, semi continuous or continuous dyeing methods on garment, yarn, knits, fabric as well as loose stock etc.
5.Available in powder, granules and liquid forms.
6.Sulphur black 1 is the major black dye used worldwide for dyeing of cellulosics.
7.The conventional dyeing process is not environment friendly due to pollution problems of sodium sulphide as well as sod/pot. Dichromates.
8.When dyed by using non polluting reducing and oxidizing agents the process is environment friendly.