Sca Hygiene Products Ab

Bengt Widberg

Kent Malmgren

Shabira Abbas

Jeanette Annergren

Camilla Bemm

&angst;sa &Ouml;stman

Eva Str&ouml;mbom

The present invention relates to a method of producing polysaccharide fibres (), wherein the polysaccharide is dissolved and the solution is sprayed into a bath () which contains a water-miscible organic solvent and a cross-linker. The invention also relates to a polysaccharide fibre () produced by the method, and to an absorbent article which includes the polysaccharide fibre ().

Method of producing an absorbent material, an absorbent material and absorbent articles including the material in question

A method of producing a porous, liquid absorbent, open-cell polymeric foam material having properties which makes it suitable for use as an absorbent structure in absorbent articles such as diapers, pant diapers, sanitary napkins, incontinence guards, wound dressings, bed protections etc, comprising dissolving a polymer in a solvent, adding a surfactant and causing foaming, after which the polymer is crosslinked in the foamed mixture by means of a crosslinking agent. The temperature of the foam thus formed is lowered to a temperature below the freezing point of the solvent and the crosslinking reaction is continued during the freezing step, and after the main part of the solvent is removed from the formed foam material.

Method of producing an absorbent foam material

The invention refers to an absorbent structure in an absorbent article such as a diaper, a pant diaper, an incontinence guard, a sanitary napkin etc., the absorbent structure comprises an open-cell foam structure, the pore walls of said foam structure comprising a liquid-storing material having the capacity to store more than 7% synthetic urine defined according to the CRC method. The absorbent structure is characterized by that the pores of the foam structure contains hydrophilic fibers, at which at least the main part of the hydrophilic fibers are firmly anchored in the pore walls of the foam structure, and that the fiber amount is at least 10% by weight of the total weight of the open-cell foam in dry condition. The invention also refers to an absorbent article containing such an absorbent structure.

Growing community of inventors

Bågevägen, Sweden

Bengt Widberg