NONWOVEN MATERIAL WITH RETURN VALVE PROPERTIES Russian patent published in 2017 - IPC A61F13/511 A61L15/52 B32B5/02 

FIELD: textile, paper.

SUBSTANCE: material, having the properties of the return valve, contains the nonwoven substrate, having the first surface with hydrostatic pressure value at the first surface and the second surface, having the hydrostatic pressure value at the second surface, and the super water-repellent compound, provided on the first surface. At that the value of hydrostatic pressure at the first surface is less than 1 cm, and the value of the hydrostatic pressure at the second surface is at least in 4 cm greater, than the value of the hydrostatic pressure on the first surface. The group of inventions also relates to the embodiment of the mentioned material, in which the level of super water-repellent compound addition is less than 2 g/m², and to the product for personal care, containing the mentioned material.

EFFECT: improved characteristics of the moisture absorption and distribution, reduction of the leakage and return moisture flow to the surface.

22 cl, 5 dwg