Aspects of this disclosure relate to a method of manufacturing wallboard which includes providing a first layer of facing material, creasing the first layer facing material intermittently to create a series of creased portions, providing a gypsum slurry on the first layer of facing material and providing a second layer of facing material over the gypsum slurry. Further, creasing the first layer of facing material intermittently can include intermittently creasing the first layer of facing material in a substantially linear fashion extending in a first direction of the first layer of facing material so that the first layer of facing material exhibits a linear series of creased portions extending in the first direction of the first layer of facing material and a series of portions that are not creased extending in the first direction of the first layer of facing material.

A pigmented aqueous inkjet ink set for manufacturing decorative panels includes a cyan aqueous inkjet ink containing a copper phthalocyanine pigment; a red aqueous inkjet ink containing a red pigment selected from the group consisting of C.I. Pigment Red 254, C.I. Pigment Red 122, C.I. Pigment Red 176 and mixed crystals thereof; a yellow aqueous inkjet ink containing a pigment C.I Pigment Yellow 150 or a mixed crystal thereof; and a black aqueous inkjet ink containing a carbon black pigment, wherein the aqueous inkjet inks contain a surfactant. An inkjet printing method for manufacturing decorative panels is also disclosed.

One aspect of the disclosure is a plaster board having a first edge and an opposed second edge, and a third edge and an opposed fourth edge. The plaster board includes a first layer of hardened plaster material including a first surface and an opposed second surface, and a second layer of hardened plaster material including a first surface and an opposed second surface. The second layer of hardened plaster material is stacked against the first layer such that their first surfaces face one another. The first layer and the second layer together define the first, second, third, and fourth edges of the plaster board. The plaster board also includes a viscoelastic polymer disposed between the first surfaces of the first and second layers of hardened plaster material. The viscoelastic polymer does not extend substantially to the first, second, third, and fourth edges of the plaster board.

A panel, such as a floor panel, including a core, an optional upper arrangement and an optional lower arrangement. One or more of the core, the upper arrangement and the lower arrangement includes a mineral-based layer, preferably including magnesium oxide. One or more of the mineral-based layers includes reinforcement fibres embedded in a mineral-based matrix, preferably including magnesium oxide. The fibres are configured to increase the tensile strength of the mineral-based layer.

The invention relates to a panel and a method for producing a panel. The panel is in particular a floor, wall or ceiling panel, and comprises at least one core layer, the core layer comprising an upper core surface and a lower core surface and at least one pair of opposite side edges; wherein the core layer comprises magnesium oxide cement; wherein the core has a density which is substantially homogenous over its entire volume, and wherein at least one decorative top layer is attached to an upper core surface of the core layer.

There are provided a decorative sheet which has excellent weatherability and in which white pigment particles are dispersed well, and a decorative material using the decorative sheet. The decorative sheet includes at least a substrate and a surface protective layer. The surface protective layer contains an ultraviolet absorber, and the substrate contains white pigment particles. The white pigment particles are titanium oxide particles having a coating containing Al element and Si element and formed on part or the whole of their surfaces, and contain Ti, Al and Si elements in the following mass ratio: when Ti is taken as 1, Al is not less than 0.02 and less than 0.20, and Si is more than 0.002 and not more than 0.070.

Insulated paper products are disclosed. Methods of making and using insulated paper products are also disclosed.

A panel having a substrate and a top layer provided thereon, wherein the top layer comprises at least a melamine resin and a binder, the binder being selected from the group comprising: polyacrylates based binder, polyvinyl acetate based binder, polyester based binder, acrylic copolymers based binder or urethane based binder.

Techniques of forming a foamed insulation material from gypsum waste are disclosed herein. One example technique includes mechanically comminuting the gypsum waste from an original size into particles of gypsum at a target size smaller than the original size and mixing the particles of the gypsum with a binder to form a mixture of particles and binder. The binder is configured to bind the particles of gypsum upon hydration. The example technique can further include performing air entrainment on the mixture until a foam is formed from the mixture having the particles of gypsum and binder. The foam has water that causes the binder to bind the particles of gypsum. The example technique can then include removing moisture from the mixture with the formed foam to form a foamed insulation material from the particles of gypsum.

Techniques of forming a foamed insulation material from gypsum waste are disclosed herein. One example technique includes mechanically comminuting the gypsum waste from an original size into particles of gypsum at a target size smaller than the original size and mixing the particles of the gypsum with a binder to form a mixture of particles and binder. The binder is configured to bind the particles of gypsum upon hydration. The example technique can further include performing air entrainment on the mixture until a foam is formed from the mixture having the particles of gypsum and binder. The foam has water that causes the binder to bind the particles of gypsum. The example technique can then include removing moisture from the mixture with the formed foam to form a foamed insulation material from the particles of gypsum.