The invention relates to powdery, water-soluble, cationic polymer composition comprising at least two different cationic polymers, namely a first cationic polymer and a second cationic polymer, which differ in chemical nature and molecular weight, as well to a method for producing such powdery, water-soluble, cationic polymer composition, and to its use for promoting flocculation in solid-liquid separation, for example as a retention aid in paper manufacture, and in sludge dewatering/wastewater purification.

The disclosure describes a process for making a décor paper from a dispersion with improved optical performance by (a) combining a treated TiO.sub.2 particle having a surface area of at least about 30 m.sup.2/g with water and a cationic polymer to form a TiO.sub.2 particle slurry; wherein the treated TiO.sub.2 particle comprises an oxide selected from the group consisting of silicon, aluminum, phosphorus and mixtures thereof; and the oxide is present in the amount of at least 15% based on the total weight of the treated titanium dioxide particle; (b) combining the TiO.sub.2 particle slurry of step (a) with paper pulp and a cationic polymer. The dispersion provides equal optical performance using less TiO.sub.2 when compared to the same dispersion not comprising the TiO.sub.2 particle slurry of (a). These décor papers are useful in preparing paper laminates.

The disclosure describes a process for making a décor paper from a dispersion with improved optical performance by (a) combining a treated TiO.sub.2 particle having a surface area of at least about 30 m.sup.2/g with water and a cationic polymer to form a TiO.sub.2 particle slurry; wherein the treated TiO.sub.2 particle comprises an oxide selected from the group consisting of silicon, aluminum, phosphorus and mixtures thereof; and the oxide is present in the amount of at least 15% based on the total weight of the treated titanium dioxide particle; (b) combining the TiO.sub.2 particle slurry of step (a) with paper pulp and a cationic polymer. The dispersion provides equal optical performance using less TiO.sub.2 when compared to the same dispersion not comprising the TiO.sub.2 particle slurry of (a). These décor papers are useful in preparing paper laminates.

The present disclosure is generally directed to a dispersible moist wipe comprising hydroentangled fibers and a binder composition. The moist wipe demonstrates high initial wet strength while maintaining effective dispersion in an aqueous environment. The moist wipe has potential application as a flushable surface cleaning product and/or a flushable cleansing cloth.

The present invention relates to a process of manufacturing paper or paperboard which comprises providing (a) a mechanical pulp and (b) a wood free pulp, combining (a) the mechanical pulp and (b) the wood free pulp to form a mixed pulp comprising no more than 20% by total dry weight of fiber of the mechanical pulp, flowing the mixed pulp as a medium consistency stock and combining the medium consistency stock with dilution water to form a low consistency stock, draining the low consistency stock through a wire or mesh to form a sheet of paper which is dried, in which additional filler and a cationic polymer are added to the mechanical pulp.

The present invention relates to a process of manufacturing paper or paperboard which comprises providing (a) a mechanical pulp and (b) a wood free pulp, combining (a) the mechanical pulp and (b) the wood free pulp to form a mixed pulp comprising no more than 20% by total dry weight of fiber of the mechanical pulp, flowing the mixed pulp as a medium consistency stock and combining the medium consistency stock with dilution water to form a low consistency stock, draining the low consistency stock through a wire or mesh to form a sheet of paper which is dried, in which additional filler and a cationic polymer are added to the mechanical pulp.

A method for manufacturing a multi-layered paperboard is disclosed, which includes at least two fibrous layers, in which method at least one layer of the multi-layered paperboard is treated by applying an aqueous solution of a first strength component in dissolved form including anionic strength polymer and/or amphoteric strength polymer composition on a surface of layer, and an aqueous solution of a cationic second strength component in dissolved form is added to a fibre stock from which at least one of the fibrous layers joined together is formed.

The present invention relates to a new process for improving dewatering when manufacturing a film comprising high amounts of microfibrillated cellulose (MFC) without negatively impacting the film properties. According to the present invention a high amount of nanoparticles is used as an additive, optionally together with a polymer.

The present invention relates to a new process for improving dewatering when manufacturing a film comprising high amounts of microfibrillated cellulose (MFC) without negatively impacting the film properties. According to the present invention a high amount of nanoparticles is used as an additive, optionally together with a polymer.

A method is disclosed for increasing strength properties, preferably burst strength and SCT strength, of a paper or board product. The paper or board product is manufactured from a fibrous web produced by a multilayer headbox, where an aqueous layer is formed between at least a first and a second fibre layer formed from fibrous stock suspension(s), and where feed water for the aqueous layer includes at least one cationic polymer. The method of the invention includes adding an anionic additive selected from a group comprising anionic synthetic organic polymers, anionic polysaccharides, and any of their combinations to the feed water before formation of the aqueous layer.