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

Fashion and Textiles

International Journal of Interdisciplinary Research

Table 6 Color values of cotton dyed with untreated and hydrolyzed extract of Flos Sophorae

Dyebath conc	Dyeing time	Untreated Flos Sophorae extract					Hydrolyzed Flos Sophora extract
Dyebath conc	Dyeing time	L^*	a^*	b^*	ΔE	K/S	L^*	a^*	b^*	ΔE	K/S
Undyed		91.82	3.07	− 13.94	0.00	n.a	90.34	2.87	− 13.10	0.00
50:50 FS:DW	30 min	80.83	0.09	59.01	73.84	6.16	78.18	4.32	63.75	87.69	9.15
50:50 FS:DW	60 min	79.70	1.86	59.60	74.55	6.06	77.21	5.12	62.06	83.33	11.11
75:25 FS:DW	30 min	80.35	− 0.72	59.98	74.94	6.29	80.76	0.56	50.09	79.09	9.19
75:25 FS:DW	60 min	79.29	0.94	59.24	74.29	6.19	79.79	1.27	52.19	76.39	9.72
Mean		80.04	0.54	59.46	74.41	6.18	78.99	2.82	57.02	81.63	9.79