Table 3.
Color changes of the Re-WDF dyed with sappan wood and gardenia after premordanting by Al, Cu and Fe mordants

Type of natural dye	Type of premordanting	Hunter' s Value				Munsell' s Value
		L*	a*	b*	ΔE*	H		V		C
						Before	After2)	Before	After2)	Before	After2)
Control	None	76.05	5.21	22.18		0.2Y	0.6Y	7.52	6.68	3.45	5.27
Sappan wood1)	None	70.06	10.80	30.52	11.70	9.2YR	8.9YR	6.94	6.17	5.16	5.75
	Al	47.42	35.86	16.08	42.39	4.6R	9.0R	4.66	4.81	8.61	6.19
	Cu	39.39	24.34	9.81	43.16	4.2R	1.9YR	3.86	3.89	5.58	4.26
	Fe	32.98	6.57	-0.46	48.68	6.9RP	5.7YR	3.21	3.45	1.31	1.52
Gardenia	None	66.32	17.52	59.51	40.50	0.4Y	0.6Y	6.64	6.54	9.75	6.43
	Al	67.88	15.53	57.99	38.15	1.0Y	0.7Y	6.79	6.64	9.34	6.20
	Cu	65.83	15.31	55.90	36.66	0.8Y	0.7Y	6.58	6.30	9.01	6.00
	Fe	61.03	9.25	48.36	30.45	2.8Y	2.2Y	6.08	6.08	7.34	4.92

Sappan wood ; pH=7.5, Dyeing conditions ; Temperature : 60 °C, Time : 60 minutes
After of 24hr ultraviolet irradiation treatment.