International Journal of Interdisciplinary Research
Table 1 Physical characteristics of the current and two water-repellent combat textiles
Property of textiles | Test method | Untreated textiles (Control) | Water-repellent (WR_M) | Water-repellent (WR_T) |
|---|---|---|---|---|
Water-repellent coating material | – | Untreated | C-6 | PFC-free |
Fabric weight (g·cm−2) | 0.018 | 0.017 | 0.019 | |
Fabric thickness (mm) | 0.346 | 0.398 | 0.360 | |
Tensile strength _ warp/weft (N) | KS K 0520 | > 540/> 450 | 920/590 | 660/510 |
Tearing strength _ warp/weft (N) | > 30/> 30 | 49/34 | 110/110 | |
Stretch and recovery rate (%) | KS K 0352 | > 65 | 87.5 | 86.1 |
Air permeability (cfm) | KS K 0570 | 30.2 | 27.7 | 31.2 |
Water repellency before washing (level) | KS K 0590 | 0 | 5 | 5 |
Water repellency after 30-time washing (level) | KS K ISO 4920 | 0 | 3 | 4 |
Resistance to water penetration of seam (cmH2O) | KS K ISO 811 | Wetted | 13.7 | 14.4 |
Water vapor permeability-calcium test (g·m−2·24 h−1) | KS K 0594 | 9432 | 7576 | 7985 |
Water vapor permeability (g·m−2·24 h−1) | KS K 0594 | Wetted | 30,973 | 27,388 |
Water vapor resistance (m2·Pa·W−1) | ISO 11092 | 2.40 | 3.59 | 3.07 |
Moisture absorption/quick drying rate (OMMC, level) | AATCC 195 | 3 | 1 | 1 |