Table 3.

Color of the liner materials before and after treatments.

Material		Before immersion in DW			After immersion in DW			Before aging			After aging
		L*	a*	b*	L*	a*	b*	L*	a*	b*	L*	a*	b*
DL	Mean	47.35	15.99	8.00	47.39	15.69	7.93	52.31	16.28	7.93	58.69	7.99	16.50
	SD	0.81	0.30	0.26	0.99	0.62	0.27	1.57	0.30	0.27	8.02	3.80	4.69
TR	Mean	39.92	20.06	6.24	40.06	19.11	6.40	39.72	24.22	7.15	42.36	12.09	8.07
	SD	2.48	1.47	0.49	2.47	1.65	0.63	0.71	0.72	0.45	1.92	1.92	3.25
UH	Mean	56.50	9.37	12.25	53.78	9.36	18.47	48.00	12.43	17.66	42.25	12.16	24.05
	SD	1.03	0.33	0.70	2.42	0.62	2.18	0.91	0.83	0.39	0.60	0.42	1.75
MP	Mean	47.08	12.49	11.68	46.74	13.30	13.02	47.11	13.38	11.38	43.81	11.65	13.92
	SD	0.97	0.81	1.41	0.81	0.55	1.11	0.95	0.77	0.60	0.82	0.56	1.42
UP	Mean	42.78	17.15	2.94	42.99	17.00	3.16	44.75	16.21	2.89	43.30	15.83	5.75
	SD	0.17	0.29	0.18	0.27	0.16	0.16	0.90	0.57	0.85	1.09	0.35	1.16