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Sulphur is a type of dyestuff used frequently on blacks, and neutrals khaki’s while economic has only moderate fastness to washing and light.


Bleaching concluded that sodium hypochlorite is safe for the environment in current regular use according to a risk assessment report conducted by the European community.

Colour fastness

Colour fastness is a term used to measure the resistance to colour changes under specified conditions such as exposure to ultraviolet light, bleaching and fading.