A method for producing a backsheet (14) for absorbent sanitary articles (10) provided with hook-and-loop fasteners (24), comprising the steps of: - advancing a continuous web of fibrous material without support (30) at a first speed (V 1 ), - cutting the continuous web of fibrous material (30) in a transverse direction so as to form sections of fibrous material (38), - accelerating the sections of fibrous material (38) at a second speed (V 2 ) greater than said first speed (V 1 ), - welding said sections of fibrous material (38) spaced apart at constant intervals onto a continuous non-woven support web (40) advancing at said second speed (V 2 ), so as to convert said sections of fibrous material (38) into frontal tapes of loop-material (26) for hook-and-loop fasteners, and - fixing a continuous impermeable film (50) to said continuous non-woven support web (40) with said frontal tapes of loop-material (26), so as to form a continuous backsheet web (14) provided with frontal tapes of loop-material (26) spaced apart at constant intervals.
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