METHOD FOR MAKING A FILTERING ELEMENT AND FILTERING ELEMENT

摘要

A method for making a filtering element (5; 10; 15) from a film (1) of non-woven material, said filtering element (5; 10; 15) being associable with a container (30; 50) for containing and/or retaining a product (P), comprises hot pressing at least one defined portion of said film (1) or of said filtering element so as to obtain a pressed portion (2, 3; 12) in which fibres, in particular synthetic and/or plastic fibres, of at least one external surface layer of said non-woven material are compacted and pressed together and in which a thickness of said non-woven material is reduced by a percentage comprised between 30 and 50%.