Search
Twilled Dutch Weave
As with the plain weave, the shute wires of the twilled dutch weave (TDW) are arranged as close together as possible. However, this weave has double the number of shute wires than a plain dutch weave. A very small aperture is formed by three shute wires which cross in different directions and, together with the warp wires, create a channel that is open on two sides. The characteristic structure of this tight weave provides high filtration accuracy. Another variation of this is Open Twilled Dutch Weave where fewer shute wires are used to influence the filtration rate.
| Mesh Per Inch Warp x Shute | Wire Diameter, Warp in. (mm.) | Wire Diameter, Shute in. (mm.) | Porosity (%) | Thickness in. (mm.) | Weight lbs./sq. ft. (kg./sq. m) | Micron Retention |
| 14×128 | 0.020 (0.500) | 0.016 (0.400) | 43 | 0.052 (1.31) | 1.19 (5.81) | 200 microns |
| 18×210 | 0.018 (0.457) | 0.010 (0.254) | 51 | 0.042 (1.06) | 0.88 (4.28) | 200 microns |
| 12.7×220 (T) | 0.011 (0.280) | 0.010 (0.250) | 44 | 0.035 (0.90) | 0.84 (4.10) | 105 microns |
| 16×270 (D) | 0.009 (0.240) | 0.008 (0.210) | 41 | 0.029 (0.73) | 0.69 (3.35) | 125 microns |
| 18×330 | 0.020 (0.500) | 0.007 (0.180) | 59 | 0.046 (1.18) | 0.78 (3.80) | 100 microns |
| 20×216 | 0.011 (0.270) | 0.010 (0.250) | 40 | 0.032 (0.82) | 0.78 (3.82) | 110 microns |
| 20×250 | 0.010 (0.250) | 0.009 (0.220) | 41 | 0.026 (0.66) | 0.69 (3.35) | 100 microns |
| 20×260 | 0.018 (0.450) | 0.009 (0.220) | 42 | 0.040 (1.01) | 0.85 (4.16) | 108 microns |
| 25×160 | 0.016 (0.400) | 0.012 (0.300) | 46 | 0.039 (1.00) | 0.94 (4.60) | 105 microns |
| 30×250 | 0.010 (0.250) | 0.008 (0.200) | 40 | 0.026 (0.65) | 0.63 (3.10) | 90 microns |
| 30×360 | 0.010 (0.250) | 0.006 (0.150) | 39 | 0.024 (0.60) | 0.51 (2.49) | 90 microns |
| 40×250 | 0.010 (0.250) | 0.009 (0.220) | 36 | 0.028 (0.72) | 0.75 (3.65) | 75 microns |
| 40×550 | 0.007 (0.180) | 0.004 (0.100) | 52 | 0.017 (0.43) | 0.35 (1.70) | 65 microns |
| 50×250 | 0.010 (0.250) | 0.008 (0.200) | 40 | 0.028 (0.70) | 0.67 (3.28) | 50 microns |
| 60×700 | 0.006 (0.165) | 0.003 (0.076) | 49 | 0.016 (0.40) | 0.29 (1.42) | 45 microns |
| 80×700 | 0.004 (0.100) | 0.003 (0.076) | 42 | 0.011 (0.27) | 0.25 (1.21) | 35 microns |
| 110×850 | 0.004 (0.090) | 0.003 (0.065) | 42 | 0.009 (0.24) | 0.23 (1.12) | 30 microns |
| 165×1100 | 0.003 (0.070) | 0.002 (0.044) | 29 | 0.007 (0.17) | 0.15 (0.75) | 18 microns |
| 165×1400 | 0.003 (0.070) | 0.002 (0.040) | 30 | 0.006 (0.15) | 0.16 (0.76) | 15 microns |
| 200×1400 | 0.003 (0.070) | 0.002 (0.040) | 33 | 0.006 (0.15) | 0.16 (0.76) | 13 microns |
| 250×1370 | 0.002 (0.058) | 0.002 (0.043) | 32 | 0.006 (0.14) | 0.17 (0.84) | 9 microns |
| 325×1900 | 0.001 (0.035) | 0.001 (0.027) | 39 | 0.004 (0.10) | 0.09 (0.45) | 7 microns |
| 325×1900 | 0.001 (0.038) | 0.001 (0.028) | 34 | 0.004 (0.09) | 0.10 (0.49) | 10 microns |
| 325×2300 | 0.001 (0.038) | 0.001 (0.025) | 30 | 0.003 (0.09) | 0.10 (0.47) | 8 microns |
| 375×2300 | 0.001 (0.032) | 0.001 (0.025) | 35 | 0.004 (0.09) | 0.09 (0.46) | 3 microns |
| 400×2800 | 0.001 (0.029) | 0.001 (0.023) | 33 | 0.003 (0.07) | 0.09 (0.45) | 2 microns |
| 450×2750 | 0.001 (0.025) | 0.001 (0.020) | 33 | 0.003 (0.07) | 0.07 (0.36) | <1.5 microns |
| 508×3600 | 0.001 (0.025) | 0.001 (0.017) | 34 | 0.002 (0.05) | 0.07 (0.34) | 1 microns |
Alternative Micronic Weaves
