Table 4.

UPF values, protection class and K/S values of sateen weave fabric dyed with natural colorants at different concentrations

	Colorant	UPF	UV Protection Class	K/S
Sateen weave	2% Madder	> 50	Excellent	0.25
	4% Madder	> 50	Excellent	0.36
	6% Madder	> 50	Excellent	0.59
	2% Cochineal	> 50	Excellent	1.78
	4% Cochineal	> 50	Excellent	1.87
	6% Cochineal	> 50	Excellent	2.42
	2% Indigo	> 50	Excellent	1.66
	4%Indigo	> 50	Excellent	2.05
	6% Indigo	> 50	Excellent	2.40