Color fastness to wash
Fabric	Unfinished			FC			FC + D			FC + B
	Color change	Color staining		Color change	Color staining		Color change	Color staining		Color change	Color staining
	Color change	Cotton	Wool	Color change	Cotton	Wool	Color change	Cotton	Wool	Color change	Cotton	Wool
Rib	4	3	4	4	3 - 4	4	4	3 - 4	4	4	4	4
Interlock	4	3 - 4	4	3 - 4	3 - 4	4	3 - 4	3 - 4	4	3 - 4	3 - 4	4