One Step Photopolymerization of N, N-Methylene Diacrylamide and Photocuring of Carboxymethyl Starch-Silver Nanoparticles onto Cotton Fabrics for Durable Antibacterial Finishing

Table 1

Effect of irradiation time on the inhibition zone (mm) of S. aureus and E. coli. Synthesis conditions: DS = 0.2; [CMS], 10 g/L; [PI], 1 g/L; [AgNO₃], 1 g/L; temperature, 40°C; time, 60 min; M : L ratio, 1 : 20; pH, 7. Finishing conditions: pad-dry-photocure, AgNPs colloidal solution only. Curing conditions: drying for 5 min at 100°C; UV curing for 15, 30, and 60 min. Washing conditions: Egyptol, 2 g/L; fabric : liquor ratio, 1 : 10; temperature, 50°C for 10 min.

Irradiation time (min)	Number of washing cycles	Inhibition zone (mm)
		S. aureus	E. coli
0	0	13	12
15	0	17	15
30	0	22	21
60	0	22	22
0	1	8	8
15	1	12	13
30	1	15	14.5
60	1	15	14
0	3	5	0
15	3	0	0
30	3	7	5
60	3	7	6
0	5	0	0
15	5	0	0
30	5	1.5	2
60	5	1.5	2
0	7	0	0
15	7	0	0
30	7	0	0
60	7	0	0
0	10	0	0
15	10	0	0
30	10	0	0
60	10	0	0
0	15	0	0
15	15	0	0
30	15	0	0
60	15	0	0
0	20	0	0
15	20	0	0
30	20	0	0
60	20	0	0