Abstract: The invention relates to a method to produce a linerboard exhibiting a high bending resistance and a high compression strength, which in turn provides high resistance to interflute buckling and sagging in a thereof formed corrugated board. This is achieved by the inventive combination of an optimized fiber refining level of the furnish in each layer of the linerboard, the separate formation of the top layer and the use of a multi-layer headbox to form the two-layered ply. In addition, the linerboard made according to the invention provides good printing properties in a thereof produced corrugated board, especially in flexographic printing, without the fluting structure being negatively affected.

Abstract: The present invention relates to an electrically conductive paper structure and a method for its production, as well as the use of the electrically conductive paper structure, for example as a heating element.

Abstract: Disclosed are non-wood pulps having a fiber length greater than about 1.70 mm and a brightness of about 80% or greater. The relatively high degree of brightness is achieved without a loss fiber length or pulp yield. The high degree of brightness and relatively long fiber length makes the pulps well suited for the manufacture of wet-laid fibrous products, particularly wet-laid tissue products. The pulps may be prepared from plants of the family Asparagaceae by mechanical pulping and more preferably by a chemi-mechanical pulping using a sodium hydroxide alkaline peroxide solution where the primary pulp is cleaned to reduce debris prior to bleaching. Preferably the cleaned primary pulp has less than about 5% debris prior to bleaching.

Abstract: The invention relates to a creping blade (1) with a blade-like main part (8) made of metal, in particular steel or stainless steel, said main part having a working edge (2) which can be placed against a drying cylinder (3) and which adjoins an end face (4) with a counter-edge (5). Grooves (6) are worked into the end face (4) and are arranged at a distance to one another, and a wear protection layer (7) is provided on the wall of the main part (9) between the working edge (2) and the main part (8), wherein the grooves (6) are worked at least into the wear protection layer (7).

Abstract: Disclosed are non-wood pulps having a fiber length greater than about 1.70 mm and a Very Long Fiber (VLF) content of about 0.50% or less. The fibers are readily dispersible in water and useful in the formation of fibrous sheets, particularly wet-laid sheets and more particularly wet-laid tissue sheets having a relatively low basis weight. In addition of having a relatively long fiber length and a low VLF content, the pulps may also have a Dispersivity Index of about 2.00 or less, which is indicative of a relatively narrow fiber length distribution. The pulps may be prepared from plants of the family Asparagaceae by mechanical pulping and more preferably by a chemi-mechanical pulping process using an alkaline and hydrogen peroxide where the plant biomass is cut to size prior to pulping.

Abstract: Paper treating compositions and methods of using the same are disclosed herein. The paper treating compositions of the present disclosure may include a strength agent and a surfactant or a sizing agent and a surfactant. The compositions and methods can be used to improve sizing and paper strength, especially, for example in spray size press applications.

Abstract: The present invention is directed to products, such as paper and paperboard products, comprising a substrate containing cellulose and top ply comprising microfibrillated cellulose and inorganic particulate, to methods of making such paper and paperboard products, and associated uses of such paper and paperboard products. The microfibrillated cellulose and inorganic particulate material are applied at the stage when the wet substrate is in the process of being formed on the wire of a papermaking machine, thereby avoiding the additional cost of more extensive equipment and machinery as well as in separate drying of a coating. The microfibrillated cellulose facilitates the application of inorganic particulate onto the surface of a wet paper or paperboard substrate when applied thusly, by trapping the inorganic particulate on the surface of the substrate and by giving the composite sufficient strength and a suitable pore structure to make it suitable for printing and other end-use demands.

Abstract: Fibrous structures, for example sanitary tissue products, such as toilet tissue, having one or more neat surfactant components on at least one exterior surface, methods for making same, and methods for removing fecal matter from a user's skin are provided.

Abstract: Toilet tissue having a dynamic surface comprising a surface material that overlays a textured web material such that the toilet tissue exhibits one or more novel properties and method for making same are provided.

Abstract: A method of producing a 3D molded product comprises applying a pulp slurry layer to a porous forming face of a first mold, pressing the pulp slurry layer against the porous forming face of the first mold, while heating the pulp slurry layer and drawing a vacuum through the porous forming face of the first mold, transferring the pulp slurry layer to a porous forming face of a second mold, in a subsequent forming step, pressing the pulp slurry layer against the porous forming face of the second mold, while heating the pulp slurry layer and drawing a vacuum through the porous forming face of the second mold. In the method, a first pressure at the rear side of the forming face of the porous forming face of the first mold is lower than a second pressure at the rear side of the porous forming face of the second mold.

Abstract: The multi-ply tissue products that are both durable and dispersible may be manufactured using a creping process that employs a non-crosslinked vinyl acetate-ethylene polymer as a creping agent. The products generally have a Slosh time less than 2 minutes, such as less than about 60 seconds, such as less than about 45 seconds. Surprisingly, the foregoing Slosh times are achieved despite the tissue products having relatively high cross-machine direction (CD) wet tensile strength, such as greater than about 100 g/3?. Typically, increasing wet tensile strength, particularly wet CD tensile strength, negatively effects dispersability and increases Slosh time. Despite this trend, the multi-ply tissue products have a relatively high degree of wet strength and good dispersability.

Abstract: An apparatus for producing sanitary absorbent articles comprising at least one perforating device of at least one web intended for making sanitary absorbent articles capable of making perforated patterns spaced apart along the extension of the web, that is, in phase. The present invention also relates to a perforating process implemented in an apparatus for producing sanitary absorbent articles.

Abstract: A method of producing wet laid disposable bath tissue, facial tissue, and paper towel with enhanced properties through application of surface additives using a piezoelectrical apparatus or application device.

Abstract: The document relates to a pick-up press device for use in a process of producing a 3D molded product from a pulp slurry comprising a pick-up press tool presenting a porous first product face; a press tool presenting a second product face; and a vacuum source, connected to the pick-up press tool. The pick-up press tool and the press tool are vertically movable relative one another, wherein, in a first relative position of the press tools, at least one of the product faces is positioned so as to receive a pulp slurry layer in liquid form to its product face, and wherein in a second relative position of the press tools, the product faces are pressed towards each other for pressing the pulp slurry layer.

Abstract: 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.

Abstract: Treated substrates and methods of forming the same are provided. In an exemplary embodiment, a treated substrate includes lignocellulose and a polymer fixed to the lignocellulose to form the treated substrate. The polymer includes a succinic moiety that can reversibly change between a succinic anhydride and a succinic acid moiety. The treated substrate has a wet tensile index of about 3 newton meters per gram or less.

Abstract: The present invention provides a powder-assembled composite micro-nano fiber and a method for preparing the powder-assembled composite micro-nano fiber. The method includes the following steps: (1) preparing two-dimensional cellulose from a cellulose-raw-material; (2) dispersing the two-dimensional cellulose and a powder material in a solvent to form a mixed suspension; and (3) performing freeze drying on the mixed suspension to obtain the powder-assembled composite micro-nano fiber, wherein a temperature difference between two ends in a vertical direction of the mixed suspension is controlled to be 10-100° C. in a freezing process of the freeze drying. In the present invention, a new non-destructive processing path from primary particles to macro applications is constructed, and rich material platforms and infinite possibilities are provided for basic studies and technical applications.

Abstract: The present invention provides a wet-pressed, wet-laid tissue product that is soft and durable. The tissue product includes regenerated cellulose fibers providing 25% or less of the total weight of the wet-laid tissue product. The tissue product can include a DSF value of greater than 1.22. The DSF value is defined by the equation: DSF=(Durability Value/TS7 Softness value)/number of plies of the wet-pressed, wet-laid tissue product.

Abstract: A unitary deflection member. The unitary deflection member can have a fluid pervious reinforcing member and a patterned framework. The patterned framework can have a plurality of regularly spaced protuberances extending from the reinforcing member. At least two of said protuberances can be similar in size and shape, and can have linear segments having different cross-sectional areas along the z-direction.

Abstract: Described are oil and water-resistant compositions and methods of making and using such compositions. The compositions can be used to prepare oil and water-resistant articles of manufacturing. Oil and water-resistant compositions can include a fiber, a polysaccharide, an acid, and water; wherein the composition is water and oil resistant when compressed and heated. Other oil and water-resistant compositions can include a fiber, a blocking agent such as a fatty acid, a metal salt of a fatty acid, or combinations thereof, and water, wherein the composition is water and oil resistant when compressed and heated.