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International Journal of Interdisciplinary Research

Table 13 UPF of cotton dyed with the hydrolyzed extract of Flos Sophorae before and after the fastness tests

From: UV protection effect of cotton dyed with Flos Sophorae (Sophora Japonica L.) extracted with acid hydrolysis

Dye conc

Dyeing time

Before

After sunlight fastness test

After washfastness test

UPF

Transmittance (%)

UPF

Transmittance (%)

UPF

Transmittance (%)

UVA

UVB

UPF

% Loss

UVA

UVB

UPF

% Loss

UVA

UVB

50:50

FS:DW

30 min

10.84

9.67

10.07

10.84

0.00

11.83

10.51

11.50

−6.09

8.99

9.72

60 min

13.57

8.51

9.25

11.58

14.66

11.63

10.32

11.84

12.75

9.80

10.56

75:25

FS:DW

30 min

11.63

9.69

10.02

11.31

2.75

11.51

10.21

10.87

6.53

9.17

9.86

60 min

13.80

7.96

8.52

12.24

11.30

11.29

10.02

10.09

26.88

9.27

9.76