Twilled Dutch Weave

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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.)	Wire Diameter, Shute (in.)	Wire Diameter, Warp (mm.)	Wire Diameter, Shute (mm.)	Porosity (%)	Thickness (in.)	Thickness (mm.)	Weight (lbs./sq. ft.)	Weight (kg./sq. m)	Particle Retention
14×128	0.020	0.016	0.500	0.400	43	0.052	1.31	1.19	5.81	200
18×210	0.018	0.010	0.457	0.254	51	0.042	1.06	0.88	4.28	200
12.7×220 (T)	0.011	0.010	0.280	0.250	44	0.035	0.90	0.84	4.10	105
16×270 (D)	0.009	0.008	0.240	0.210	41	0.029	0.73	0.69	3.35	125
18×330	0.020	0.007	0.500	0.180	59	0.046	1.18	0.78	3.80	100
20×216	0.011	0.010	0.270	0.250	40	0.032	0.82	0.78	3.82	110
20×250	0.010	0.009	0.250	0.220	41	0.026	0.66	0.69	3.35	100
20×260	0.018	0.009	0.450	0.220	42	0.040	1.01	0.85	4.16	108
25×160	0.016	0.012	0.400	0.300	46	0.039	1.00	0.94	4.60	105
30×250	0.010	0.008	0.250	0.200	40	0.026	0.65	0.63	3.10	90
30×360	0.010	0.006	0.250	0.150	39	0.024	0.60	0.51	2.49	90
40×250	0.010	0.009	0.250	0.220	36	0.028	0.72	0.75	3.65	75
40×550	0.007	0.004	0.180	0.100	52	0.017	0.43	0.35	1.70	65
50×250	0.010	0.008	0.250	0.200	40	0.028	0.70	0.67	3.28	50
60×700	0.006	0.003	0.165	0.076	49	0.016	0.40	0.29	1.42	45
80×700	0.004	0.003	0.100	0.076	42	0.011	0.27	0.25	1.21	35
110×850	0.004	0.003	0.090	0.065	42	0.009	0.24	0.23	1.12	30
165×1100	0.003	0.002	0.070	0.044	29	0.007	0.17	0.15	0.75	18
165×1400	0.003	0.002	0.070	0.040	30	0.006	0.15	0.16	0.76	15
200×1400	0.003	0.002	0.070	0.040	33	0.006	0.15	0.16	0.76	13
250×1370	0.002	0.002	0.058	0.043	32	0.006	0.14	0.17	0.84	9
325×1900	0.001	0.001	0.035	0.027	39	0.004	0.10	0.09	0.45	7
325×1900	0.001	0.001	0.038	0.028	34	0.004	0.09	0.10	0.49	10
325×2300	0.001	0.001	0.038	0.025	30	0.003	0.09	0.10	0.47	8
375×2300	0.001	0.001	0.032	0.025	35	0.004	0.09	0.09	0.46	3
400×2800	0.001	0.001	0.029	0.023	33	0.003	0.07	0.09	0.45	2
450×2750	0.001	0.001	0.025	0.020	33	0.003	0.07	0.07	0.36	<1.5
508×3600	0.001	0.001	0.025	0.017	34	0.002	0.05	0.07	0.34	1