STEAM PERMISSIVE AND WATER NON PERMISSIVE SCREEN, AND METHOD FOR MAKING SAME

摘要

The invention relates to a steam permissive and water non-permissive screen, particularly a sub-roof screen, a rain-proof screen, an air-proof screen or the like. The screen (1) is characterised in that it mainly comprises a non-woven fabric made of a mat or a web of a majority of natural fibres (2), preferably vegetable fibres, that has been submitted to a binding operation by pressurised liquid jets, or hydrobinding, and to a hydrophobation process.