A biodegradable composition having resistance to moisture and organic waste is provided.

A biodegradable composition having resistance to moisture and organic waste is provided.

Molded pulp containers with fused junctions and methods of making of same are provided. The present invention provides a pulp container, comprising a molded pulp body, wherein the body comprising a bottom and at least one side wall forming a wherein the at least one side wall comprising a upper rim, a neck, wherein the neck comprising a upper closure part and a lower rim, a fused junction, wherein a part of the upper rim of the at least one sidewall of the body and a part of the lower rim of the neck are aligned and fused together. The fused junction may be formed by ultrasonic welding.

Molded pulp containers with fused junctions and methods of making of same are provided. The present invention provides a pulp container, comprising a molded pulp body, wherein the body comprising a bottom and at least one side wall forming a wherein the at least one side wall comprising a upper rim, a neck, wherein the neck comprising a upper closure part and a lower rim, a fused junction, wherein a part of the upper rim of the at least one sidewall of the body and a part of the lower rim of the neck are aligned and fused together. The fused junction may be formed by ultrasonic welding.

In a first step, a molding die is immersed in a raw liquid including cellulosic fibers. Then, the liquid of a raw liquid is sucked through a net material by a liquid suction part, so as to cause the cellulosic fibers to be laminated on the net material. In the second step, the cellulosic fibers laminated on the net material are dried, so as to form a protrusion. In the third step, the dried protrusion and the communication part are removed from the molding die. A passage part of the communication part is formed at a position where a projection portion had been arranged, the passage part being configured to communicate an inside of the protrusion with an outside of the protrusion.

In a first step, a molding die is immersed in a raw liquid including cellulosic fibers. Then, the liquid of a raw liquid is sucked through a net material by a liquid suction part, so as to cause the cellulosic fibers to be laminated on the net material. In the second step, the cellulosic fibers laminated on the net material are dried, so as to form a protrusion. In the third step, the dried protrusion and the communication part are removed from the molding die. A passage part of the communication part is formed at a position where a projection portion had been arranged, the passage part being configured to communicate an inside of the protrusion with an outside of the protrusion.

The present disclosure provides a method of producing a 3D molded product from a pulp slurry. The method comprises applying a pulp slurry layer to a porous forming face of a first mold, in a first forming step, pressing the pulp slurry layer against the porous forming face of the first mold, while heating the pulp slurry layer and drawing a vacuum through the porous forming face of the first mold, transferring the pulp slurry layer to a porous forming face of a second mold, in a second, subsequent, forming step, pressing the pulp slurry layer against the porous forming face of the second mold, while heating the pulp slurry layer and drawing a vacuum through the porous forming face of the second mold. In the method, a first pressure at the rear side of the forming face of the porous forming face of the first mold is lower than a second pressure at the rear side of the porous forming face of the second mold.

The present disclosure provides a method of producing a 3D molded product from a pulp slurry. The method comprises applying a pulp slurry layer to a porous forming face of a first mold, in a first forming step, pressing the pulp slurry layer against the porous forming face of the first mold, while heating the pulp slurry layer and drawing a vacuum through the porous forming face of the first mold, transferring the pulp slurry layer to a porous forming face of a second mold, in a second, subsequent, forming step, pressing the pulp slurry layer against the porous forming face of the second mold, while heating the pulp slurry layer and drawing a vacuum through the porous forming face of the second mold. In the method, a first pressure at the rear side of the forming face of the porous forming face of the first mold is lower than a second pressure at the rear side of the porous forming face of the second mold.

The invention relates to a container comprising a container wall that partly surrounds a container interior, wherein the container wall a) has a container opening; b) comprises a container layer comprising i) a multitude of particles, and ii) no fold and no crease;  and c) comprises a first polymer layer that at least partly superimposes the container layer;
wherein the container interior a. has a maximum diameter in a plane perpendicular to a height of the container interior, and b. has a diameter less than the maximum diameter of the container interior at least in sections in the direction from the plane to the container opening.

The invention further relates to a method of superimposing a container precursor with a polymer composition; a container obtainable by that method; an apparatus for superimposing a container precursor with a polymer composition; a method of filling and closing one of the aforementioned containers and the closed container obtainable thereby; and uses of a filling machine, of one of the aforementioned containers, of a polymer composition, and of a powder coating system.

The invention relates to a container comprising a container wall that partly surrounds a container interior, wherein the container wall a) has a container opening; b) comprises a container layer comprising i) a multitude of particles, and ii) no fold and no crease;  and c) comprises a first polymer layer that at least partly superimposes the container layer;
wherein the container interior a. has a maximum diameter in a plane perpendicular to a height of the container interior, and b. has a diameter less than the maximum diameter of the container interior at least in sections in the direction from the plane to the container opening.

The invention further relates to a method of superimposing a container precursor with a polymer composition; a container obtainable by that method; an apparatus for superimposing a container precursor with a polymer composition; a method of filling and closing one of the aforementioned containers and the closed container obtainable thereby; and uses of a filling machine, of one of the aforementioned containers, of a polymer composition, and of a powder coating system.