A method for the production of a fibrous product from a fibrous web, wherein the method comprises the steps of: —providing a fibrous suspension comprising a microfibrillated cellulose, wherein the content of the microfibrillated cellulose of said suspension is in the range of 60 to 99.9 weight-% based on total dry solid content, —adding an uncharged, amphoteric or weakly cationic polymer having a molecular weight of at least 50000 g/mol to said suspension, —adding an anionic polymer having a molecular weight of at least 00000 g/mol to said suspension to provide a mixture of said microfibrillated cellulose, said uncharged, amphoteric or weakly cationic polymer and said anionic polymer, 1—providing said mixture to a substrate to form a fibrous web, wherein the amount of uncharged, amphoteric or weakly cationic polymer in said mixture is in the range of 0.1 to 20 kg/metric ton based on total dry solid content and wherein the amount of anionic polymer in said mixture is in the range of 0.01 to 10 kg/metric ton based on total dry 20 solid content; and—dewatering said fibrous web to form a fibrous product.

A dryer fabric has a weft of cross machine direction yarns (6) and a first warp of first machine direction yarns (5) and a second warp of second machine direction yarns (9). The yarns of the first warp are arranged above the yarns of the second warp on a first surface (FS) side. The first warp has primary yarns (51) of PPS or PK yarns whose breaking load remains substantially stable within 15 days in conditions where RH=100%, T=125° C. and p=2.3 bar; and secondary yarns (52) of PET with breaking loads which substantially decrease under the same conditions. At least every second yarn of the first warp is a secondary yarn (52). The secondary yarns (52) may be two out of three or three out of four of the first machine direction yarns (5). PET reduces cost and adds elasticity to the dryer fabric.

Disclosed is a process for producing biomass fiber molding material, and relates to the technical field of biological fibers. In the present disclosure, pretreated dried leaf fibers are softened by being subjected to a soaking process; the leaf fibers are grounded through a high-concentration grinder to obtain primary pulp of biomass fiber molding material; and then excess water is removed from the primary pulp of biomass fiber molding material through a pulp squeezing thickener to obtain the biomass fiber molding material. The primary pulp of biomass fiber molding material obtained by the production process of the present disclosure meets the specification for manufacturing safe paper, water is recycled in the production process to reduce water resource consumption; and the adding of auxiliary agents is reduced, which can reduce the cleaning of the product and improve the utilization rate of the leaf fibers.

Provided is technology enabling appropriately maintaining or adjusting the thickness of accumulated fiber when accumulating and processing fiber. A sheet manufacturing apparatus 100 has a distributor 60 that distributes a mixture MX containing fiber; a second web former 70 that forms a second web W2; a mesh belt 72 that conveys the second web W2 in a conveyance direction F1; a roller unit 650 that compresses the second web W2; a measurement device 400 that measures the distribution of the thickness of the second web W2 in a second direction intersecting the conveyance direction F1 while the second web W2 is being compressed by the roller unit 650, or after the second web W2 is compressed by the roller unit 650; and a controller 110 that compares a measurement from the measurement device 400 with a set thickness distribution, and controls the thickness distribution of the second web W2.

A structured tissue belt assembly including a supporting layer, a non-woven web contacting layer, and one or more laser welds that attach the bottom surface of the web contacting layer to the top surface of the supporting layer. The structured tissue belt assembly allows for air flow in x, y and z directions. In exemplary embodiments, the structured tissue belt assembly has an embedment distance between the supporting layer and the web contacting layer of 0.05 mm to 0.60 mm and a peel force between the web contacting layer and the supporting layer of at least 650 gf/inch.

The present invention provides for manufacturing processes of structuring fabrics that contain a web contacting layer with seams that do not cause defects in the sheet that can result in sheet breaks during the paper machine process. Structuring fabrics with a web contacting layer that can have damaged sections replaced rather than replacing the entire structuring fabric, which is costly and time consuming, are also provided. Additionally, a process for manufacturing the web contacting layer by laying down polymers of specific material properties in an additive manner under computer control (3-D printing) is provided.

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 multiplicity of through-channels that extend through the substrate from the upper side to 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. An upper rim of at least one of the plurality of through-channels directly contacts an upper rim of at least one other neighboring through-channel of the plurality of through-channels. There is also described a method of producing such a paper machine clothing.

Described herein are component compositions comprising a blend of a polymer resin together with silica glass beads. In certain embodiments, the components demonstrate improved abrasion resistance as do the industrial fabrics produced that comprise at least one component of the instant disclosure.

The invention relates to a method, a computer program product and a machine vision system (30), comprising at least one lighting device (34), at least one image sensor (31 a-c) and a data processing device (32), the system in a first mode illuminating a first object (35) using a first type of illumination and capturing images of the first object at a first image capturing frequency, when the first object (35) is on a second object (33), transmitting the captured image data to the data processing device for analysis, and changing the system for monitoring the second object in a second mode, if absence of the first object on the second object is detected from the image data, wherein said at least one image sensor (31 a-c) is reconfigured to capture images at a second image capturing frequency from the second object.

Monofilaments having high abrasion resistance and dimensional stability and low slide friction, textile fabrics composed thereof and use thereof Disclosed is a polyester monofilament comprising a) 60 to 85 wt.-% of a polyester raw material selected from the group of polyethylene terephthalate, of polyethylene naphthalate, of to polyethylene terephathalate modified with dicarboxylic acid, of polyethylene naphthalate modified with dicarboxylic acid, or of combinations thereof, b) 14.4 to 30 wt.-% of a thermoplastic elastomeric block copolymer, c) 0.05 to 10 wt.-% of a polycarbonate, and d) 0.1 to 10 wt.-% of a carbodiimide stabilizer, wherein the quantities are based on the total amount of the monofilament. The disclosed monofilaments can be preferably used for the manufacture of paper machine clothing and are distinguished by high hydrolytic stability, abrasion resistance and dimensional stability as well as by a very low slide friction.