| 摘要 |
<p>A barrier fabric with a nano-fibrous layer for mechanical retention of organic substances, wherein it is formed by a sandwich structure containing a basic material from unwoven fabric of "spunbond" type with areal weight of 15 to 50 g/m 2 to which at least one nano-fibrous layer is arranged, selected from the group comprising a hydrophilic polymer, a hydrophobic polymer, or in the case of double-layer arrangement, a combination of the hydrophilic polymer in one layer and the hydrophobic polymer in the other layer, and where the nano-fibrous layer is equipped with a protective covering layer, and where the individual layers of the sandwich are connected to each other, and where the nano-fibrous layer used as a barrier against penetration of allergens produced by the dust mites through the upholstery material of mattresses, pillows, bedclothes or soft furnishings, is created by an organic polymer material with areal weight of 0.05 to 0.3 g/m 2 and thickness from 90 to 150 nm, whereas the covering layer is selected from the group involving an unwoven fabric of "spunbond" type, "meltblown" type, cotton textile and/or a mixture of cotton and polyester.</p> |
