A composition in accordance with an aspect of the present invention includes: composite fibers composed of inorganic particles and fibers; and at least one of (i) different-type inorganic particles which are different in type from the inorganic particles, (ii) different-type fibers which are different in type from the fibers, and (iii) organic particles.

The present technology is directed to fluff pulps with improved odor control as well as methods of making such fluff pulps. A fluff pulp is provided that includes a bleached kraft fiber and a copper ion content from about 0.2 ppm to about 50 ppm by weight of the bleached kraft fiber. The bleached kraft fiber includes a length-weighted average fiber length of at least about 2 mm, a copper number of less than about 7, a carboxyl content of more than about 3.5 meq/100 grams; an ISO brightness of at least 80; and a viscosity from about 2 cps to about 9 cps.

A board including a plurality of layers having a different composition. At least one of the layers is based on MgO and MgChloride and/or at least one of said layers is based on MgO and MgSulphate. Methods for manufacturing such boards, and methods for manufacturing coated panels include such board.

Process for the surface treatment of a titanium dioxide pigment, characterized in that it comprises the following steps: an aqueous suspension of titanium dioxide pigments is formed, in a first step, a layer of alumina phosphate is precipitated on the surface of the pigment, in a second step, a layer of alumina is precipitated over the first layer of alumina phosphate, and in a third step, a layer of magnesium oxide and alumina is precipitated on the layer of alumina. Also included are titanium dioxide pigments made by the disclosed process and method using said pigments in paper manufacturing.

The present invention provides a titanium oxide composite fiber in which titanium oxide is efficiently fixed in fiber, and a method for producing the titanium oxide composite fiber. A composite fiber of the present invention includes: fiber; titanium oxide; and an inorganic binder, at least part of the inorganic binder containing at least one inorganic compound selected from (i) an inorganic salt containing at least one of: at least one metal selected from magnesium, barium, aluminum, copper, iron, and zinc; and silicic acid and (ii) metal particles containing the at least one metal, the titanium oxide being firmly fixed to the fiber via the inorganic binder.

The present invention relates to a process for producing an aqueous slurry comprising a blend of surface modified calcium carbonate comprising particles (MCC) and precipitated calcium carbonate comprising particles (PCC), an aqueous slurry comprising the blend, as well as the blend obtainable by drying the aqueous slurry and their uses in paper, paper coating, tissue paper, digital photo paper, paints, coatings, adhesives, plastics, waste water treating or waste water treating agents.

Process for the surface treatment of a titanium dioxide pigment, characterized in that it comprises the following steps: an aqueous suspension of titanium dioxide pigments is formed, in a first step, a layer of alumina phosphate is precipitated on the surface of the pigment, in a second step, a layer of alumina is precipitated over the first layer of alumina phosphate, and in an optional third step, a layer of magnesium oxide is precipitated on the layer of alumina Titanium dioxide pigments made by the disclosed process and method using said pigments in paper manufacturing are also disclosed.

Process for the surface treatment of a titanium dioxide pigment, characterized in that it comprises the following steps: an aqueous suspension of titanium dioxide pigments is formed, in a first step, a layer of alumina phosphate is precipitated on the surface of the pigment, in a second step, a layer of alumina is precipitated over the first layer of alumina phosphate, and in a third step, a layer of magnesium oxide and alumina is precipitated on the layer of alumina. Also included are titanium dioxide pigments made by the disclosed process and method using said pigments in paper manufacturing.

The present invention provides a titanium oxide composite fiber in which titanium oxide is efficiently fixed in fiber, and a method for producing the titanium oxide composite fiber. A composite fiber of the present invention includes: fiber; titanium oxide; and an inorganic binder, at least part of the inorganic binder containing at least one inorganic compound selected from (i) an inorganic salt containing at least one of: at least one metal selected from magnesium, barium, aluminum, copper, iron, and zinc; and silicic acid and (ii) metal particles containing the at least one metal, the titanium oxide being firmly fixed to the fiber via the inorganic binder.

This disclosure describes a process for preparing silica-coated calcium carbonate particles, involving the steps of preparing an aqueous carbonate slurry containing calcium carbonate particles, adding at least one silicate composition to the aqueous carbonate slurry to obtain a carbonate-silicate slurry, lowering a pH of the carbonate-silicate slurry by adding at least one acidic compound to obtain a pH-adjusted slurry containing the silica-coated calcium carbonate particles, and isolating the silica-coated calcium carbonate particles—in which at the adding of the acidic compound is controlled such that a final pH of the pH-adjusted slurry ranges from about 7 to about 10, and the silica-coated calcium carbonate particles include a porous coating having an average pore diameter ranging from 2 nm to 50 nm. This disclosure also describes articles and compositions containing the silica-coated calcium carbonate particles, as well as hollow silica spheres formed from the silica-coated calcium carbonate particles.