FIELD: human vital needs satisfaction.
SUBSTANCE: non-woven material containing the first protruding portion passing to the first side of the surface in a horizontal projection of the non-woven material in the form of a sheet, and the second protruding portion passing to the second side of the surface as the opposite side from the first surface, where a plurality of the first acting portions and the second protruding portions, alternately through the wall parts, is distributed in two directions: the first direction and the second direction, in the horizontal projection of the non-woven material, where the wall part has the orientation of the fibres along the direction connecting the first protruding portion and the second protruding portion, almost anywhere in the direction of the surface defined as the first direction and the second direction.
EFFECT: improvement of the product properties.
24 cl, 17 dwg, 5 tbl
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| NON-WOVEN MATERIAL | 2018 |
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RU2721351C1 |
