Dielectric Behaviour of Some Woven Fabrics on the Basis of Natural Cellulosic Fibers

Table 2

Permittivity and principals properties of the investigated textile materials.

Sample title	Raw material composition	Surface mass,; g⋅m^−2	Average thickness of the  weave, mm	Length density of yarns  from the weave, tex		Technological density of  the weave per 1 dm in   direction of:		Capacity, nF   (nano F)	Permittivity,  fF/mm (femto*F/mm), 𝜉	Relative  electrical permittivity, 𝜉𝑟
				Warp	Weft	Warp	Weft
Article Suceava	100% hemp	552±55	0.83	200	333.3	100±10	85±10	5.2	119.95	13.55
Article Sava	100% hemp	335±34	0.562	100	100	172±10	127±10	2.5	39.05	4.41
Weave dyed at surface	100% flax		0.387	82	65	160±10	135±10	3.12	33.55	3.79
Article Nabucco	100% flax	248±25	0.401	80	80	157±10	143±10	3.15	35.1	3.97
Article Rares	100% flax	200±20	0.376	50	50	175±10	140±10	2.55	26.64	3.01
Article Lori	Cotton in warp and bleached flax in weft: 49% cotton + 51% flax	133±13	0.273	10×2	40	261±10	194±10	4.5	34.14	3.86
Article Livia	Cotton in warp and flax in weft: 45% cotton + 55% flax	119±12	0.220	10×2	31.7	267±10	210±10	2.89	17.49	1.97
Weave	Cotton in warp and flax with core from PES in weft		0.493	46	57	200±10	125±10	2.37	32.47	3.669
Article Zorba	Flax and PES like homogeneous mixture of yarns: 60% flax + 40% PES	195±19	0.371	66.6	66.6	156±10	130±10	32.09	330.89	38.92
Article Ina	100% flax	225±23	0.385	68	68	159±10	158±10	3.4	36.38	4.11
Hessian	100% jute		2.03	236×3×2	191×3	55±10	30±10	0.63	35.54	4.01
Weave packing	100% jute		0.794	383	432	45±10	45±10	0.75	16.55	1.87
Weave dyed at surface	100% jute		0.870	400	500	60±10	55±10	2.15	51.98	5.87
Weave duck	100% cotton		0.429	46	24	350±10	250±10	2.35	28.02	3.18
Glass thread	100% glass thread		0.223	65	65	225±10	200±10	1.43	8.86	1.00
Weave from natural silk	100% natural silk		0.0355			560±10	390±10	2.14	4.8	0.54
Weave coloured	100% polyester		0.2675			560±10	440±10	1.1	8.91	1.05
Weave imprint	100% polyester		0.106			340±10	340±10	2.38	7.27	0.82

∗femto = 10⁻¹⁵.