Patent ID: 6890602

Claim:
A process for the preparation of a micro-fibrous non-woven fabric of the suede leather type, comprising the following steps: a) spinning a two-component fiber of the “islands in the sea” type having an island component and a sea component; b) preparing a felt from the two-component fiber; c) treating the felt with thermal stabilization; d) impregnating the felt with polyurethane from an aqueous polyurethane emulsion; e) fixing the polyurethane to the felt; f) removing the sea component from the felt with water or an acid or alkaline aqueous solution; g) impregnating the felt with polyurethane a second time from one of an aqueous emulsion and a high durability polyurethane in organic solvent; h) fixing the polyurethane to the felt a second time to obtain a non-woven fabric; and i) applying a finishing treatment to the non-woven fabric.