Reactive Black
by : --
reduces the cost of recipes
ensured good wash fastness provided shading components do not impair this property- as a result of good fixation and washing-off properties
However, in the current environment, Reactive Black 5 has turned out to have certain drawbacks that are reducing its popularity. These include :
the fragility of the dye's bond with cellulose in laundering
the sensitivity of the chromophore to chlorine and oxidant detergents.
These properties give Black 5 a deserved reputation for rapid fading in repeated household laundering. Modern detergents aggravate this tendency. On account of poor build up, mainly of the shading components, dye recipes based on Black
