Alternative to Water Based Fabric Cleaner in Textile and Detergent Processes
Table 2
Detergent formulations.
Exp. #
Initial sample weight [g]
Detergent formulations
(1) EHOs (at 60˚C, without pH adjustment)
O1
3.01
1 g KOH + 1.13 g H2O2 + 1.86 g water + 75.8 g ethanol
O2
3.14
2 g KOH + 2.26 g H2O2 + 3.71 g water + 72.8 g ethanol
O3
2.92
3 g KOH + 3.39 g H2O2 + 5.57 g water + 69.8 g ethanol
O4
3.26
4 g KOH + 4.52 g H2O2 + 7.43 g water + 66.7 g ethanol
O5
3.27
5 g KOH + 5.65 g H2O2 + 9.29 g water + 63.7 g ethanol
O6
2.87
78.9 g ethanol (control)
O7
2.96
100 g water (control)
(2) Modified EHOs (at 40˚C, with pH adjustment)
T1
2.99
0.06 g KOH + 1.13 g H2O2 + 2.80 g water + 75.8 g ethanol
T2
2.32
0.11 g KOH + 2.26 g H2O2 + 5.60 g water + 72.8 g ethanol
T3
2.55
0.17 g KOH + 3.39 g H2O2 + 8.40 g water + 69.8 g ethanol
T4
2.26
0.22 g KOH + 4.52 g H2O2 + 11.21 g water + 66.7 g ethanol
T5
2.27
0.28 g KOH + 5.65 g H2O2 + 14.01 g water + 63.7 g ethanol
T6
2.13
78.9 g ethanol (control)
(3) WBD (at 40˚C, commercial detergent)
D1
2.29
2 g T detergent + 98 g water
D2
2.83
4 g T detergent + 96 g water
D3
2.99
6 g T detergent + 94 g water
D4
2.81
8 g T detergent + 92 g water
D5
2.58
10 g T detergent + 90 g water
D6
2.86
100 g water (control)
Note: Total volume of detergent formulation = 100 mL. Weight of added H2O2 was calculated from stock solution of 350 g L−1 H2O2 solution. Weight of water in EHOs formulation was calculated from added H2O2 solution. Wight of water in modified EHOs formulation was calculated from added 1 M KOH (pH = 8.5) solution and H2O2 solution. In modified EHOs formulations, pH of 1 M KOH solution (pH 8.5) was adjusted using citric acid. Processing time = 1 h; agitation speed = 200 revolutions per minute. Sample to solvent ratio was 2-3 g cloth sample to 100 mL solvent.
