D21F1/00

PAPER PRODUCTION
20230056642 · 2023-02-23 ·

There is provided a method of producing a paper, comprising the steps of: a) providing a pulp having a Schopper-Riegler (SR) number measured according to ISO 5267-1:1999 of 25-50, which pulp comprises at least 70% by weight sulphate or sulphite pulp; b) diluting the pulp to a consistency of 0.1%-0.9%; and c) forming a web from the diluted pulp from step b) in a forming section at a machine speed of at least 1100 m/min, such as 1100-1800 m/min.

Deflecting member for making fibrous structures

A deflection member that includes a reinforcing member and a plurality of tiles fastened to the reinforcing member.

Manufacturing process for papermaking endless belts using 3D printing technology

An apparatus for producing endless 3-D printed belts using in papermaking and an apparatus for producing endless 3-D printed belts laminated to a substrate for additional strength and dimensional stability during use.

Seamless unitary deflection member for making fibrous structures having increased surface area and process for making same

A seamless unitary deflection member. The seamless unitary deflection member can have a backside defining an X-Y plane and a thickness in a Z-direction. The seamless unitary deflection member may also have a reinforcing member and a plurality of protuberances positioned on the reinforcing member. Each protuberance may have a three-dimensional shape such that any cross-sectional area of the protuberance parallel to the X-Y plane can have an equal or lesser area than any cross-sectional area of the protuberance being a greater distance from the X-Y plane in the Z-direction.

Deflecting member for making fibrous structures

A deflection member that includes a reinforcing member that includes a resin coating, and at least one tile fastened to the resin coating.

Papermaking machine that utilizes only a structured fabric in the forming of paper

A method of forming a fibrous web on a papermaking machine including the steps of depositing a dilute fiber slurry out of a headbox to a forming area comprising a forming surface made up of a structured fabric, wherein the structured fabric is supported by a breast roll and a forming roll, and the forming area is devoid of any additional fabrics or belts other than the structured fabric, draining the dilute fiber slurry through the structured fabric, and drying the fiber slurry.

DEFLECTING MEMBER FOR MAKING FIBROUS STRUCTURES

A deflection member that includes a reinforcing member that includes a resin coating, and at least one tile fastened to the resin coating.

Paper machine clothing and method of producing the same

A paper machine clothing has a substrate with an upper side, a lower side, two lateral edges and a usable region between the two lateral edges. The usable region is formed with a plurality of through-channels extending through the substrate and connecting the upper side with the lower side. The through-channels are non-cylindrical with a cross sectional area becoming smaller when going in a thickness direction of the substrate from the upper side to a middle region of the substrate between the upper side and the lower side, wherein a shape of the cross sectional area of at least one through-channel, preferably of all through-channels, of the plurality of through-channels changes proceeding in the thickness direction of the substrate from the upper side to the lower side.

PAPER MACHINE CLOTHING

A covering for a machine for producing or processing a fibrous web, in particular a paper or tissue web. The covering includes a basic covering which has a web-contacting upper side and an underside, and a plurality of polymer elements. The polymer elements are welded onto the upper side and at least some of the polymer elements are in the form of yarn-shaped and/or tape-shaped polymer elements.

PAPER MACHINE CLOTHING

A covering for a machine for producing or processing a fibrous web, in particular a paper or tissue web. The covering includes a basic covering which has a web-contacting upper side and an underside, and a plurality of polymer elements. The polymer elements are welded onto the upper side and at least some of the polymer elements are in the form of yarn-shaped and/or tape-shaped polymer elements.