A process for the preparation of a micro-fibrous non-woven fabric of the suede
leather type includes spinning a two-component fiber of the "islands in the sea"
type having an island component and a sea component and then preparing a felt from
the two-component fiber. The felt is treated with thermal stabilization and impregnated
with polyurethane from an aqueous polyurethane emulsion. The polyurethane is fixed
to the felt and the sea component is removed. The felt is then impregnated with
polyurethane for a second time with an aqueous emulsion or a high durability solution
in organic solvent. The polyurethane is then fixed to the felt for a second time
to obtain a non-woven fabric and a finishing treatment is applied to the non-woven fabric.
