Multi-layer composite material, production and use thereof

A process for producing a multilayered composite material comprising as components:

• (A) a sheet material,
• (B) a material capable of absorbing water or aqueous fluids,
• (C) at least one bonding layer and
• (D) a polyurethane layer with capillaries passing through the entire thickness of the polyurethane layer,
• wherein the polyurethane layer (D) comes into direct contact with sheet material (A) or absorption-capable material (B) in one or more places;
• the process comprising bonding a material (B), capable of absorbing water or aqueous fluids, to a sheet material (A), forming a polyurethane layer (D) with the aid of a mold, applying at least one organic adhesive uniformly or partially onto sheet material (A) bonded to absorption-capable material (B) and/or onto polyurethane layer (D) and then bonding polyurethane layer (D) pointwise, stripwise or areawise to said sheet material (A) combined with said absorption-capable material (B)