ABSORBENT STRUCTURAL ELEMENTS AND CORES WITH EFFECTIVE IMMOBILIZATION OF ABSORBENT MATERIAL Russian patent published in 2018 - IPC A61F13/532 

FIELD: human vital needs satisfaction.

SUBSTANCE: absorbent structural element (70) comprises a flat base (16), an auxiliary clay (72) applied directly onto the base (16) at the area (71) of auxiliary clay applying, an absorbent material comprising super-absorbent particles in an amount from 80 wt % to 100 wt % applied on the base at the area (73) of absorbent material applying containing a combination of protruding sections (75) of the absorbent material with mouth-like sections (76) separating them from each other, which do not contain the absorbent material, wherein this area of absorbent material applying can be conditionally divided into eight applying zones (Z1-Z8) of the same length along the longitudinal direction. A layer (74) fibre thermoplastic adhesive covers at least some of the protruding sections and at least some of the mouth-like section which do not contain an absorbent material in order to ensure the immobilization of at least some of the absorbent material on the base. The absorbent material is distributed along the longitudinal direction of the structural element in such a way that at least one of the eight applying zones represents a zone (Z1, Z2, Z7, Z8) with less content of absorbent material. At least in one of these zones (Z1, Z2, Z7, Z8) with less content of absorbent material the auxiliary clay (71) is absent or is present in an amount at least by 50 wt % less than the average amount of auxiliary clay. The absorbent structural element may be provided in the absorbent core for absorbent products, such as diapers.

EFFECT: increased absorbency.

19 cl, 13 dwg, 3 tbl