D21F11/00

A METHOD FOR DEWATERING A WEB COMPRISING MICROFIBRILLATED CELLULOSE AND A FILM PRODUCED FROM THE DEWATERED WEB

The present invention relates to a method for dewatering a web comprising microfibrillated cellulose, wherein the method comprises the steps of: providing a suspension comprising between 50 weight-% to 100 weight-% of microfibrillated cellulose based on total dry weight, forming a fibrous web of said suspension on a support wherein said web has a dry content of 1-25% by weight, applying a dewatering felt into direct contact with the fibrous web, conducting said fibrous web, arranged between said dewatering felt and said substrate, through a pressing equipment. The invention further relates to a film produced from said method.

Process for Making Multi-Ply Fibrous Structure Containing Articles

Articles, for example multi-ply fibrous structure-containing articles such as multi-ply sanitary tissue products, containing two or more fibrous structure plies, and more particularly to multi-ply articles containing two or more fibrous structure plies having a plurality of fibrous elements wherein the articles exhibit improved bulk and absorbent properties compared to known articles and methods for making same, are provided.

METHODS OF MAKING LOW LINT PAPER PRODUCTS
20210277603 · 2021-09-09 ·

A method of making a fibrous sheet includes providing a first furnish including a primary pulp having papermaking fibers, the papermaking fibers (i) having a weight-weighted average fiber length between about two and seven tenths millimeters and about three millimeters, (ii) a coarseness of about sixteen milligrams per one hundred meters or lower, and (iii) being at least eighty percent of the papermaking fibers of the first furnish, forming a nascent web having at least two layers, one of the at least two layers being (i) a surface layer of the nascent web and (ii) formed from the first furnish, dewatering the nascent web to form a dewatered web, applying the surface layer of the dewatered web to the outer surface of a Yankee drum of a Yankee dryer, and drying the dewatered web with the Yankee dryer to form a fibrous sheet.

Methods of making paper products using a patterned cylinder

A method of making a molded paper web includes bringing a permeable patterned surface of a patterned cylinder into contact with a nascent web and conveying the nascent web between a transfer surface and the permeable patterned surface over an arc length of the permeable patterned surface. The arc length forms at least a portion of a molding zone. The method also includes applying a vacuum over at least a portion of the arc length. The method further includes transferring the nascent web from the transfer surface to the permeable patterned surface of the patterned cylinder in the molding zone. The vacuum is applied during the transferring of the nascent web from the transfer surface to the permeable patterned surface of the patterned cylinder.

METHODS OF MAKING FABRIC-CREPED ABSORBENT CELLULOSIC SHEETS

A method of making a fabric-creped absorbent cellulosic sheet. The method includes compactively dewatering a papermaking furnish to form a web having a consistency of about 30 percent to about 60 percent, creping the web under pressure in a creping nip between a transfer surface and a structuring fabric, the structuring fabric including knuckles formed on warp yarns of the structuring fabric, with the knuckles having a length in the machine direction (MD) of the absorbent sheet and a width in the cross machine direction (CD) of the absorbent sheet, wherein a planar volumetric density index of the structuring fabric multiplied by a ratio of the length of the knuckles to the width of the knuckles is at least about 43, and drying the web to form the absorbent cellulosic sheet.

PROCESS AND APPARATUS FOR WETLAYING NONWOVENS

A process and an apparatus for producing nonwoven materials are disclosed. The process includes the following steps: a) providing a three-phase (gas-liquid-solid) suspension containing air, water, fibrous material and a surfactant, b) depositing the suspension onto a moving carrier sieve to produce a fibrous web on the carrier sieve, c) removing aqueous residue of the suspension through the carrier sieve, d) conveying the aqueous residue through one or more phase separation tanks in an essentially horizontal direction while providing a depressurised headspace above the aqueous residue, e) recycling the aqueous residue conveyed in step d) to step a), f) preferably pre-integrating the fibrous web.

METHODS OF MAKING FABRIC-CREPED ABSORBENT CELLULOSIC SHEETS

A method of making a fabric-creped absorbent cellulosic sheet. The method includes compactively dewatering a papermaking furnish to form a web having a consistency of about thirty percent to about sixty percent, creping the web under pressure in a creping nip between a transfer surface and a structuring fabric, and drying the web to form the absorbent cellulosic sheet. The absorbent sheet has SAT capacities of at least about 9.5 g/g and at least about 500 g/m.sup.2. A creping ratio is defined by the speed of the transfer surface relative to the speed of the structuring fabric, and the creping ratio is less than about 25%.

INDUSTRIAL TWO-LAYERED FABRIC
20210254245 · 2021-08-19 ·

[Task] To provide an industrial two-layered fabric with a long durability which exhibits an excellent surface smoothness and excellent marking characteristics, while at the same time improving wear resistance characteristics to balance warps and wefts.

[Solution to the Task] The industrial two-layered fabric formed by binding at least one upper surface side fabric constituted by upper surface side warps and upper surface side wefts and at least one lower surface side fabric constituted by lower surface side warps and lower surface side wefts, by binding yarns, a portion of said lower surface side warps is woven with said upper surface side wefts to constitute binding yarns of the lower surface side warps serving as the binding yarn binding said at least one upper surface side fabric and said at least one lower surface side fabric, diameters of said binding yarns of the lower surface side warps are set to be the same as diameters of said upper surface side warps, and diameters of all of the lower surface side warps not serving as the binding yarns are set to be the same and larger than diameters of said upper surface side warps and said binding yarns of the lower surface side warps.

Multi-Ply Fibrous Structure-Containing Articles

Articles, for example multi-ply fibrous structure-containing articles such as multi-ply sanitary tissue products, containing two or more fibrous structure plies, wherein at least one of the fibrous structure plies is embossed and is bonded to at least one other fibrous structure ply by a water-resistant bond such that void volume is created between the bonded fibrous structure plies.

Former of water laid asset that utilizes a structured fabric as the outer wire

A method of forming a fibrous web including the steps of providing a fiber slurry, depositing the fiber slurry between an inner forming wire and an outer forming wire, wherein the outer forming wire comprises a structured fabric and the inner forming wire contacts a segment of a forming roll, and rotating the forming roll so that the fiber slurry moves into contact with the structured fabric.