Abstract: A machine for producing a nonwoven feeds continuous filaments onto two surfaces that form a convergent passage. At least one of the surfaces is moving to drive the continuous filaments through the passage to form the nonwoven web. The continuous filaments have filament portions that are respectively received on the two surfaces to form spaced lateral web parts joined by a central web part formed by the continuous filament portions bridging the convergent passage. A vacuum is applied through the surfaces to assist placement of the filament portions and to direct the web as it emerges from the passage onto a horizontal take-up conveyor.

Abstract: A machine for producing a nonwoven feeds continuous filaments onto two surfaces that form a convergent passage. At least one of the surfaces is moving to drive the continuous filaments through the passage to form the nonwoven web. The continuous filaments have filament portions that are respectively received on the two surfaces to form spaced lateral web parts joined by a central web part formed by the continuous filament portions bridging the convergent passage. A vacuum is applied through the surfaces to assist placement of the filament portions and to direct the web as it emerges from the passage onto a horizontal take-up conveyor.

Abstract: A machine for producing a nonwoven feeds continuous filaments onto two surfaces that form a convergent passage. At least one of the surfaces is moving to drive the continuous filaments through the passage to form the nonwoven web. The continuous filaments have filament portions that are respectively received on the two surfaces to form spaced lateral web parts joined by a central web part formed by the continuous filament portions bridging the convergent passage. A vacuum is applied through the surfaces to assist placement of the filament portions and to direct the web as it emerges from the passage onto a horizontal take-up conveyor.

Abstract: A process for producing a web fleece of thermoplastic polymer filaments. Filaments of thermoplastic polymer are spun from a spinneret to form a curtain passing through a cooling chamber and a stretching channel. The volume rate of flow of the thermoplastic polymer from the spinneret, the volume rate of flow of air, the velocity of the air and the temperature of the air in the cooling chamber and stretching channel are so controlled that individual filaments of the curtain have filament diameters less than .mu.m and a degree of crystallinity less than 45%. The filaments of the curtain are collected on a continuously moving sieve belt in a mat whose crossing points fuse together. The mat is heated to a stretching temperature of 80.degree. to 150.degree. C. and stretched axially by 100 to 400%. The biaxially stretched mat is heated to a temperature above that of the stretching temperature to thermofix the web.