A process for producing nonwoven materials is disclosed. The process of comprises the following steps: a) providing a three-phase (gas-liquid-solid) suspension containing: the natural and/or manmade fibres; a surfactant; 20-48 vol. % of air, b) providing a first moving carrier sieve, c) applying the three-phase suspension onto the first moving carrier sieve to produce a fibrous web, d) removing aqueous residue of the three-phase suspension through the first carrier sieve, e) recycling the aqueous residue to step a), f) pre-integrating the fibrous web by flushing the web with 0.0005-0.05 m.sup.3 of water per m.sup.3 of applied three-phase suspension, at a pressure of 5-50 bar, and collecting flushed water, g) transferring the pre-integrated fibrous web from said first moving carrier sieve to a second moving carrier sieve, said second moving carrier sieve having a porosity which is smaller than the porosity of said first moving carrier sieve, h) hydroentangling the fibrous web on said second moving carrier.

A process for producing nonwoven materials is disclosed. The process of comprises the following steps: a) providing a three-phase (gas-liquid-solid) suspension containing: the natural and/or manmade fibres; a surfactant; 20-48 vol. % of air, b) providing a first moving carrier sieve, c) applying the three-phase suspension onto the first moving carrier sieve to produce a fibrous web, d) removing aqueous residue of the three-phase suspension through the first carrier sieve, e) recycling the aqueous residue to step a), f) pre-integrating the fibrous web by flushing the web with 0.0005-0.05 m.sup.3 of water per m.sup.3 of applied three-phase suspension, at a pressure of 5-50 bar, and collecting flushed water, g) transferring the pre-integrated fibrous web from said first moving carrier sieve to a second moving carrier sieve, said second moving carrier sieve having a porosity which is smaller than the porosity of said first moving carrier sieve, h) hydroentangling the fibrous web on said second moving carrier.

A method of processing a polymeric web includes providing a forming screen configured for supporting and moving with the web in a machine direction. The forming screen has a plurality of elliptical screen openings, each having a major axis perpendicular to the machine direction and a minor axis parallel to the machine direction. The method includes continuously depositing the web onto the forming screen and passing the web and forming screen through a water stream having a pressure level sufficient to cause the web to be forced into the screen openings, thereby forming protrusions extending from the planar surface of the web. Each protrusion has an apex, an opening at the apex, and an elliptical cross-section parallel to the planar surface of the web. The elliptical cross-section has a protrusion axis ratio that may be selected so as to produce a desired protrusion axis ratio.

The invention relates to a manufacturing process of equipment for use in the production of nonwoven fabrics and paper products. According to the present invention, a sleeve for an embossing roller is produced using additive manufacturing, specifically 3D printing. These technologies permit the preparation of pattern-forming and dewatering details in the sleeve in a single operation. The dewatering properties may thus be optimised for the selected pattern, resulting in uniform dewatering tailored for the pattern. Preferably, the technique used is stereolitography.

The invention relates to a manufacturing process of equipment for use in the production of nonwoven fabrics and paper products. According to the present invention, a sleeve for an embossing roller is produced using additive manufacturing, specifically 3D printing. These technologies permit the preparation of pattern-forming and dewatering details in the sleeve in a single operation. The dewatering properties may thus be optimised for the selected pattern, resulting in uniform dewatering tailored for the pattern. Preferably, the technique used is stereolitography.

A nozzle channel (24) of a jet strip (18) extends from the first side (20) to the second side (22) of the jet strip (18) and defines a flow-through direction (30, 38). A second section (28) of the nozzle channel (24) is offset relative to a first section (26) in the direction transverse to the flow-through direction (30, 38). Preferably, the nozzle channel (24) is funnel-shaped, with a middle section (50) tapering in the direction from the first side (20) to the second side (22) and with a single asymmetrically arranged funnel neck that is formed by the second section (28

A nozzle channel (24) of a jet strip (18) extends from the first side (20) to the second side (22) of the jet strip (18) and defines a flow-through direction (30, 38). A second section (28) of the nozzle channel (24) is offset relative to a first section (26) in the direction transverse to the flow-through direction (30, 38). Preferably, the nozzle channel (24) is funnel-shaped, with a middle section (50) tapering in the direction from the first side (20) to the second side (22) and with a single asymmetrically arranged funnel neck that is formed by the second section (28

A fluid processing system (2) for a fiber treatment system (1), which fluid processing system (2) has a moistening device (6), in particular a water-jet consolidating device, for a textile material web (3) and a preferably thermal drying device (7) for the moist material web (3). The moistening device (6) introduces process water (19) into the material web (3), which process water is removed from the material web (3) in the drying process. The fluid processing system (2) has fluid circuits (9, 10) and a regenerating device (16) for the process water (19) that is introduced into the material web (3) and thereafter removed and for the wastewater (32) arising in the process of moistening the material web (3).

A fluid processing system (2) for a fiber treatment system (1), which fluid processing system (2) has a moistening device (6), in particular a water-jet consolidating device, for a textile material web (3) and a preferably thermal drying device (7) for the moist material web (3). The moistening device (6) introduces process water (19) into the material web (3), which process water is removed from the material web (3) in the drying process. The fluid processing system (2) has fluid circuits (9, 10) and a regenerating device (16) for the process water (19) that is introduced into the material web (3) and thereafter removed and for the wastewater (32) arising in the process of moistening the material web (3).

A dispersible moist wipe generally comprises a nonwoven tissue web having regenerated fibers in an amount of about 10 to about 30 percent by weight and natural fibers in an amount of about 70 to about 90 percent by weight. The regenerated fibers and the natural fibers are hydroentangled such that the web has a geometric mean tensile strength of at least 250 grams per inch and a slosh-box break-up time of less than 155 minutes.