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International Journal of Interdisciplinary Research

Table 3 Effect of time on the physical and mechanical properties of treated denim garments

From: Characterization and process optimization of indigo dyed cotton denim garments by enzymatic wash

Time (min) Tensile strength (Kg f) Dimensional stability (shrinkage%) Weight of fabric (GSM) Stiffness(cm) Water absorption (%) Moisture content (%) Moisture regain (%) EPI & PPI Elongation at break (%) Color shade (rating)
Warp Weft
0.0 Before wash 245 (0) 136 (0) 0 318 (0) 4.5 (0) 126 7.4 7.53 70 x42 L = 21 W = 16 5
20 223 (−9%) 118 (−13%) L = − 6.0 W = 0 330 (+3.8%) 3.0 (−33%) 145 8.81 7.95 70 x46 L = 36 W = 20 4
30 213 (−13%) 110 (−19%) L = − 6.2 W = 0 334 (+5.0%) 2.78 (−38%) 150 8.90 8.20 70 x46 L = 37 W = 22 4
40 205 (−16%) 106 (−22%) L = − 6.4 W = +0.5 334 (+5.0%) 2.62 (−41.8%) 155 8.92 8.60 69 x46 L = 37 W = 22 3/4
45 201 (−18%) 101 (−26%) L = − 6.4 W = +0.5 335 (+5.3%) 2.60 (−42.2%) 156 8.93 8.60 69 x46 L = 34 W = 20 3/4
50 195 (−20%) 98 (−28%) L = − 6.3 W = +1.0 336 (+5.6%) 2.52 (−44%) 156 8.95 8.60 69 x46 L = 34 W = 24 3/4
55 190 (−22%) 95 (−30%) L = − 7.2 W = +1.0 333 (+4.7%) 2.48 (−44.8%) 158 8.93 8.60 69 x46 L = 33 W = 24 3
60 190 (−22%) 95 (−30%) L = − 7.2 W = +1.0 332 (+4.4%) 2.47(−45.1%) 158 8.95 8.60 69 x46 L = 33 W = 24 3
  1. Values at 0.0 concentrations represent the denim garments without cellulase enzyme treatment.
  2. Conditions used for enzyme washing treatment: cellulase enzyme, 2%; acetic acid, 1 g/l; temperature, 55°C; time, 20 min- 60 min; pH, 5.5; M: L, 1:30.