Table 3.

Shrinkage and tensile strength of wool fabrics dyed with spent coffee extract and mordanted with 1 wt % tannic acid aqueous solution.

Dyeing Conditions		Warp	Weft	Fabric Count	Shrinkage (%)	Tensile Strength (N)
Temperature (°C)	Time (min)
Untreated		60	48	2880	0	117
Only mordanted		60	49	2940	2.04	116
90	30	62	50	3100	7.10	122
	60	63	50	3150	8.57	123
	90	63	50	3150	8.57	126
	120	62	51	3162	8.92	123
60	60	61	50	3050	5.57	125
90		63	50	3150	8.57	123
120		73	61	4453	35.32	76