A food-safe composition and resulting article with grease and water resistance properties comprised of a petroleum wax based aqueous emulsion, a food-safe coating formulation, and an alkyl ketene dimer (AKD), wherein the composition exhibits grease and water resistant properties without a fluorinated compound present in the composition. A method of making the composition and a method of using the composition to form pulp molded articles such as food-safe containers and other pulp-based food packaging and utensils are provided.

A food-safe composition and resulting article with grease and water resistance properties comprised of a petroleum wax based aqueous emulsion, a food-safe coating formulation, and an alkyl ketene dimer (AKD), wherein the composition exhibits grease and water resistant properties without a fluorinated compound present in the composition. A method of making the composition and a method of using the composition to form pulp molded articles such as food-safe containers and other pulp-based food packaging and utensils are provided.

A food-safe composition and resulting article with grease and water resistance properties comprised of a petroleum wax based aqueous emulsion, a food-safe coating formulation, and an alkyl ketene dimer (AKD), wherein the composition exhibits grease and water resistant properties without a fluorinated compound present in the composition. A method of making the composition and a method of using the composition to form pulp molded articles such as food-safe containers and other pulp-based food packaging and utensils are provided.

A pulp molded product includes a surface that has a region with an arithmetic average roughness Ra of 50 μm or less. A method of producing a pulp molded product includes: preparing a slurry that contains pulp having an average fiber length of less than 3.0 mm and water; depositing the pulp on a paper-making mold having a solid shape to form a pulp layer; dehydrating the pulp layer to obtain an undried intermediate molded product; and heating the undried intermediate molded product while sandwiching the intermediate molded product between a male mold and a female mold and applying pressure to the sandwiched intermediate molded product.

A pulp molded product includes a surface that has a region with an arithmetic average roughness Ra of 50 μm or less. A method of producing a pulp molded product includes: preparing a slurry that contains pulp having an average fiber length of less than 3.0 mm and water; depositing the pulp on a paper-making mold having a solid shape to form a pulp layer; dehydrating the pulp layer to obtain an undried intermediate molded product; and heating the undried intermediate molded product while sandwiching the intermediate molded product between a male mold and a female mold and applying pressure to the sandwiched intermediate molded product.

Provided is a pulp molding production line, comprising at least one molding machine and pulp molding robot and at least one press, wherein the molding machine, the pulp molding robot and the press are sequentially arranged, a transfer device is installed on the pulp molding robot, the transfer device comprises a wet pulp transfer mold provided with a sealed gas chamber therein, the front of the wet pulp transfer mold is provided with at least one recessed matching chamber that can fit over the external of a wet pulp product and is recessed to the sealed gas chamber side, the recessed matching chamber matches the wet pulp product, several interfacing apertures for communicating or connecting the recessed matching chamber with the sealed gas chamber are respectively formed on the inner wall of each recessed matching chamber and the bottom of the recessed matching chamber, a moving rack parallel to the wet pulp transfer mold is connected to the back of the wet pulp transfer mold through a guide mechanism, a driver is connected between the back of the wet pulp transfer mold and the moving rack, the driver drives the moving rack to move relative to the wet pulp transfer mold, and several evenly spaced vacuum chucks are provided on the moving rack.

Provided is a pulp molding production line, comprising at least one molding machine and pulp molding robot and at least one press, wherein the molding machine, the pulp molding robot and the press are sequentially arranged, a transfer device is installed on the pulp molding robot, the transfer device comprises a wet pulp transfer mold provided with a sealed gas chamber therein, the front of the wet pulp transfer mold is provided with at least one recessed matching chamber that can fit over the external of a wet pulp product and is recessed to the sealed gas chamber side, the recessed matching chamber matches the wet pulp product, several interfacing apertures for communicating or connecting the recessed matching chamber with the sealed gas chamber are respectively formed on the inner wall of each recessed matching chamber and the bottom of the recessed matching chamber, a moving rack parallel to the wet pulp transfer mold is connected to the back of the wet pulp transfer mold through a guide mechanism, a driver is connected between the back of the wet pulp transfer mold and the moving rack, the driver drives the moving rack to move relative to the wet pulp transfer mold, and several evenly spaced vacuum chucks are provided on the moving rack.

A method for regulating a hot-pressing device, a tool component and a hot-pressing device are described, wherein the closing of the hot-pressing device and the pressing of a first tool component and a second tool component are effected according to a boiling temperature, ascertained in advance, of the liquid contained in a fiber-containing material of at least one preform and a surface temperature of a first molding device of the first tool component.

A tool component, a hot-pressing device and a method for hot pressing preforms from a fiber-containing material are described, wherein the hot-pressing device has a first tool component with a first tool body and at least one first molding device and a second tool component with a second tool body and at least one second molding device. The method includes providing at least one preform made of fiber-containing material, heating the first tool body and the first molding device via a temperature control device, placing a preform on first contact surfaces of the first molding device, moving the second tool component relative to the first tool component, and pressing the first tool component and the second tool component until the first contact surfaces and the second contact surfaces form a closed cavity.

A tool component, a hot-pressing device and a method for hot pressing preforms from a fiber-containing material are described, wherein the hot-pressing device has a first tool component with a first tool body and at least one first molding device and a second tool component with a second tool body and at least one second molding device. The method includes providing at least one preform made of fiber-containing material, heating the first tool body and the first molding device via a temperature control device, placing a preform on first contact surfaces of the first molding device, moving the second tool component relative to the first tool component, and pressing the first tool component and the second tool component until the first contact surfaces and the second contact surfaces form a closed cavity.