A process for producing nonwoven materials is provided. The process includes: providing a three-phase (gas-liquid-solid) suspension, providing a first moving carrier sieve, applying the three-phase suspension onto the first moving carrier sieve to produce a fibrous web, removing aqueous residue of the three-phase suspension through the first carrier sieve, recycling the aqueous residue, pre-integrating the fibrous web by flushing the web with water and collecting flushed water, transferring the pre-integrated fibrous web from the first moving carrier sieve to a second moving carrier sieve, and hydroentangling the fibrous web. The three-phase suspension contains natural and/or manmade fibres, a surfactant, and air.

A process for producing nonwoven materials is provided. The process includes: providing a three-phase (gas-liquid-solid) suspension, providing a first moving carrier sieve, applying the three-phase suspension onto the first moving carrier sieve to produce a fibrous web, removing aqueous residue of the three-phase suspension through the first carrier sieve, recycling the aqueous residue, pre-integrating the fibrous web by flushing the web with water and collecting flushed water, transferring the pre-integrated fibrous web from the first moving carrier sieve to a second moving carrier sieve, and hydroentangling the fibrous web. The three-phase suspension contains natural and/or manmade fibres, a surfactant, and air.

A flame-blocking nonwoven fabric has excellent processability and high flame-blocking properties. The flame-blocking nonwoven fabric has a density of 200 kg/m.sup.3 or more and includes non-melting fibers A whose high-temperature shrinkage rate is 3% or less and whose Young's modulus multiplied by the cross-sectional area of the fibers is 2.0 N or less, and thermoplastic fibers B whose LOI value is 25 or more as determined according to JIS K 7201-2 (2007).

A flame-blocking nonwoven fabric has excellent processability and high flame-blocking properties. The flame-blocking nonwoven fabric has a density of 200 kg/m.sup.3 or more and includes non-melting fibers A whose high-temperature shrinkage rate is 3% or less and whose Young's modulus multiplied by the cross-sectional area of the fibers is 2.0 N or less, and thermoplastic fibers B whose LOI value is 25 or more as determined according to JIS K 7201-2 (2007).

A method for making a high topography nonwoven substrate includes generating a foam including water and synthetic binder fibers; depositing the foam on a planar surface; disposing a template form on the foam opposite the planar surface to create a foam/form assembly; heating the foam/form assembly to dry the foam and bind the synthetic binder fibers; and removing the template from the substrate after heating the foam/form assembly, wherein the substrate includes a planar base layer having an X-Y surface and a backside surface opposite the X-Y surface; and a plurality of projection elements integral with and protruding in a Z-direction from the X-Y surface, wherein the projection elements are distributed in both the X- and Y-directions, and wherein the density of a projection element is the same as the density of the base layer.

A method for producing a fiber mat that includes: dispersing fibers having a fiber length smaller than a pore diameter of a papermaking wire in a dispersion medium; and matting the dispersed fibers including papermaking the dispersed fibers on a microporous sheet having a pore diameter smaller than that of the papermaking wire and disposed on the papermaking wire.

A method for producing a fiber mat that includes: dispersing fibers having a fiber length smaller than a pore diameter of a papermaking wire in a dispersion medium; and matting the dispersed fibers including papermaking the dispersed fibers on a microporous sheet having a pore diameter smaller than that of the papermaking wire and disposed on the papermaking wire.

Articles, such as sanitary tissue products, including fibrous structures, and more particularly articles including fibrous structures having a plurality of fibrous elements wherein the article exhibits differential cellulose content throughout the thickness of the article and methods for making same are provided.

Articles, such as sanitary tissue products, including fibrous structures, and more particularly articles including fibrous structures having a plurality of fibrous elements wherein the article exhibits differential cellulose content throughout the thickness of the article and methods for making same are provided.

The present invention relates to a method for production of product comprising a first ply, the method comprising the steps of: providing a fibrous suspension comprising fibers; providing said fibrous suspension to a porous medium to form a substrate comprising fibers; providing a first additive suspension comprising a first strengthening agent, wherein the first strengthening agent is microfibrillated cellulose; providing a second additive suspension comprising at least one retention agent and/or at least one drainage agent; dewatering said substrate on said porous medium; performing additive addition to said substrate during said dewatering of said substrate on said porous medium, wherein the additive addition is performed when the substrate has a dry content of less than 20 weight-%, preferably less than 10 weight-%, most preferably less than 7 weight-%, and wherein the additive addition comprises adding at least a layer of said first additive suspension and a layer of said second additive suspension to said substrate by means of multilayer curtain coating, and further dewatering and drying said substrate after said dewatering on said porous medium so as to provide said first ply. The invention also relates to a paper, board or non-woven product obtainable by the method.