A method for manufacturing a printing paper for decorative boards is provided. The method includes the processes of: applying a resin-containing liquid comprising at least one of a resin and a resin precursor to a base paper for decorative boards; forming a print layer on or in the base paper which is not dried after the resin-containing liquid is applied thereto; and solidifying a liquid contained in the base paper having the print layer.

A method for manufacturing a printing paper for decorative boards is provided. The method includes the processes of: applying a resin-containing liquid comprising at least one of a resin and a resin precursor to a base paper for decorative boards; forming a print layer on or in the base paper which is not dried after the resin-containing liquid is applied thereto; and solidifying a liquid contained in the base paper having the print layer.

A strength additive system for manufacturing paper, board, tissue or the like includes preferably as separate components, a cationic strength agent, such as a cationic polymer with aldehyde functional groups, and an anionic copolymer obtained by polymerization of a reaction mixture including (meth)acrylamide and anionic monomers, the standard viscosity of the obtained copolymer being in a range of 1.5-5.0 mPas. A method for manufacturing of a paper, board, tissue or the like is further disclosed.

The claimed invention relates to an improved method for imparting fire-retardancy on wood- and cellulose-based materials that can be employed in the production of furniture and in interior building construction, e.g. wood-based materials and panels, such as lumber (timber) and engineered wood, such as plywood, densified wood, fiberboard (e.g. medium-density fiberboard (MDF) or high-density fiberboard (HDF)), particle board (PB), oriented strand board (OSB), laminated timber, parallel strand lumber (PSL), laminated strand lumber (LSL) and oriented strand lumber (OSL), glued laminated timber (glulam), and laminated veneer lumber (LVL), as well as materials used in decorative interior finishing, such as decorative panels prepared from compact boards (CB) or compact laminates (CL).

A method for producing an impregnated article comprising a cellulose layer which is impregnated with a melamine resin in order for a core impregnation to be formed is characterized in that a layer of a liquid medium having a moiety of isocyanate groups is applied to the top face and/or the bottom face of the core-impregnated cellulose layer.

A method for producing an impregnated article comprising a cellulose layer which is impregnated with a melamine resin in order for a core impregnation to be formed is characterized in that a layer of a liquid medium having a moiety of isocyanate groups is applied to the top face and/or the bottom face of the core-impregnated cellulose layer.

A decorative paper of a roll of decorative paper is laminated on paper in a continuous pressing operation under pressure and at elevated temperature by means of an aminoplast resin. The roll of decorative paper comprises serially differing decorative finishes. After the continuous pressing operation, the laminate can be divided into sheets. A method is also described for impregnating, with aminoplast resin, decorative paper that comprises serially differing decorative finishes.

A decorative paper of a roll of decorative paper is laminated on paper in a continuous pressing operation under pressure and at elevated temperature by means of an aminoplast resin. The roll of decorative paper comprises serially differing decorative finishes. After the continuous pressing operation, the laminate can be divided into sheets. A method is also described for impregnating, with aminoplast resin, decorative paper that comprises serially differing decorative finishes.

A method for manufacturing a printing paper for decorative boards is provided. The method includes the processes of: applying a resin-containing liquid comprising at least one of a resin and a resin precursor to a base paper for decorative boards; forming a print layer on or in the base paper which is not dried after the resin-containing liquid is applied thereto; and solidifying a liquid contained in the base paper having the print layer.

A dcor paper is prepared from a dispersion having improved optical performance, wherein the dispersion contains a TiO.sub.2 particle slurry; paper pulp; and a cationic polymer. The TiO.sub.2 particle slurry has a treated TiO.sub.2 particle with a surface area of at least about 30 m.sup.2/g and a cationic polymer; the treatment is an oxide of silicon, aluminum, phosphorus or mixtures thereof; and the treatment is present in the amount of at least 15% based on the total weight of the treated titanium dioxide particle. Comparable dispersions not using the TiO.sub.2 particle slurry described would require about 10% more treated TiO.sub.2 particle than a dispersion made with the described TiO.sub.2 particle slurry, paper pulp, and cationic polymer to achieve equivalent optical performance. These dcor papers are useful in preparing paper laminates.