Table 5.

Investigation of fastness properties of a Violet pigment produced by S. zaomycetitus strain GH90

Type of fabrics			Cotton	Wool	Polyester	Cotton/polyester blend	Polyamide
K/SValues			16.25	13.90	12.54	14.23	16.88
Wash fastness		Alt.	3–4	4	3–4	3–4	3–4
		St.	4	4	4	3–4	3–4
Perspiration fastness	Acide	Alt.	3	3	3–4	3	3–4
		St.	3	3–4	3	3–4	3–4
	Alkali	Alt.	4–5	5	5	4–5	4–5
		St.	4–5	4–5	4–5	4–5	4–5
Light fastness			5–6	6	5–6	6	6–7

K/S value (color intensity)