Table 4 UPF values, protection class and K/S values of sateen weave fabric dyed with natural colorants at different concentrations

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