D21H19/385

METHOD FOR THE MANUFACTURING OF A SUSPENSION COMPRISING A CALCIUM CARBONATE-COMPRISING MATERIAL

The present invention relates to a process for the manufacturing of a calcium carbonate-comprising material, to a calcium carbonate-comprising material obtained by the process as well as the use of the calcium carbonate-comprising material for paper filler and paper coating applications, in plastics applications, in paints, in adhesives, in sealings, in concrete, in agriculture applications, in food applications, in cosmetic applications or in pharmaceutical applications.

PRINTED SUBSTRATE AND METHOD FOR PRINTING ONTO A SUBSTRATE
20220032675 · 2022-02-03 ·

A printed substrate, wherein a printed polymer layer is present on a surface of the substrate, is disclosed. The printed polymer layer comprises a polymer chosen from one or more of polyvinyl chloride, a copolymer of vinyl chloride and vinyl acetate, and a terpolymer of vinyl chloride, vinyl acetate and ethylene; a plasticizer; a colorant; and calcium carbonate.

Basecoat and associated paperboard structure

A basecoat including a pigment blend that includes a ground calcium carbonate component and a hyperplaty clay component, wherein the ground calcium carbonate component has a coarse particle size distribution, and wherein the hyperplaty clay component has an average aspect ratio of at least 40:1.

DOUBLE-WALL PAPERBOARD CONTAINERS HAVING AQUEOUS BARRIER COATINGS

A coated paperboard container includes an inner paperboard substrate, an outer paperboard substrate, a first aqueous barrier coating located on the inner paperboard substrate, and a second aqueous barrier coating located on the outer paperboard substrate. The inner paperboard substrate and the outer paperboard substrate are coupled with an adhesive. The first aqueous barrier coating and the second aqueous barrier coating include a pigment and a binder and the first aqueous barrier coating is heat sealable.

Preparation of pigments

The present invention relates to an aqueous calcium carbonate containing composition, to methods for producing such aqueous calcium carbonate containing compositions and to the use of the aqueous calcium carbonate containing composition in paper, paper coating, plastics and/or paint applications and as filler in paper.

SMOOTH AND LOW DENSITY PAPERBOARD STRUCTURES AND METHODS FOR MANUFACTURING THE SAME
20220267961 · 2022-08-25 ·

A method for manufacturing a paperboard structure includes passing a paperboard substrate through a hot-hard calender to yield a calendered paperboard substrate, the hot-hard calender including a nip defined by a thermo-roller and a counter roller, wherein a contact surface of the thermo-roller is heated to an elevated temperature. The method then includes applying a basecoat to the calendered paperboard substrate to yield a basecoated paperboard substrate, the basecoat includes a basecoat binder and a basecoat pigment blend. The method further includes applying a topcoat to the basecoated paperboard substrate.

PRINTING SHEET AND METHOD FOR PRODUCING PRINTING SHEET
20220266619 · 2022-08-25 ·

Provided are a printing sheet that has excellent printability, excellent adhesiveness between a substrate and a coating layer, and excellent antistatic performance and thus is less likely to cause troubles such as paper jams during printing, and further has excellent properties such as water resistance and weather resistance in the printing sheet having the coating layer for receiving an ink on at least one surface of the substrate and a method for producing the same. The printing sheet includes the coating layer by blending clay in a proportion of 35% by mass or more and 65% by mass or less and light calcium carbonate in a proportion of 5% by mass or more and 30% by mass or less in a continuous phase made of an acrylic polymer.

Process for surface sizing using a jet cooked dispersion comprising microfibrillated cellulose, starch and pigment and/or filler
11453978 · 2022-09-27 · ·

The present invention relates to a process for improved surface sizing in the manufacture of paper or board products. According to the present invention, an aqueous dispersion of microfibrillated cellulose (MFC), starch and pigments or fillers is treated by jet cooking and then used for surface sizing in a process for manufacturing a paper or board product.

Oil, grease, and moisture resistant paperboard

A coated paperboard is disclosed which includes a base coat and top coat containing substantially no fluorochemical or wax, exhibiting good resistance to oil and grease, no tendency toward blocking, and being fully repulpable. Improved moisture resistance is also exhibited.

COATED PAPER FOR INDUSTRIAL INKJET PRINTING PRESSES AND METHOD OF PRODUCING THE SAME

The present invention is to provide a coated paper for industrial inkjet printing presses comprising: a base paper, and a coating layer containing at least one selected from the group consisting of a cationic resin and a water-soluble polyvalent cationic salt, and a pigment containing kaolin, on the base paper; wherein the content of the kaolin is 30 parts by mass to 80 parts by mass based on 100 parts by mass of the pigment in the coating layer, an arithmetic mean roughness (Ra) stipulated in JIS B 0601:2001 (ISO 4287:1997) of a coated paper surface on the side where the coating layer is located is 4.5 μm to 7.5 μm, the coated paper surface on the side where the coating layer is located has 1 to 350 protruding parts per 1.0 square centimeter, and the protruding part is a protruding part having the maximum width of 10 μm to 100 μm measured using a photographed image of the coated paper surface taken by magnifying 50 times using an electron microscope.

According to the present invention, coated paper for industrial inkjet printing presses that achieves excellent uniformity in color densities and ink absorbability, that has capability of suppressing strike-through of inks, and that achieves excellent paper feeding characteristics can be provided.