D21J5/00

MOLDING SYSTEM
20220275586 · 2022-09-01 ·

A molding system includes a frame device, a scooping device, a demolding device, a cutting device, an inspection device, a packaging device, and a conveying device. The frame device defines a scooping zone, a hot pressing zone, a cutting zone, an inspection zone, and a packaging zone. The scooping device includes a pulp tank that is adapted to contain a slurry, and a scooping mold that is adapted to scoop the slurry such that the slurry forms a blank unit thereon. The cutting device is adapted to cut the blank unit into a plurality of blank bodies. The conveying device is adapted to convey the blank bodies from the cutting zone to the packaging zone through the inspection zone.

MOLDING SYSTEM
20220275586 · 2022-09-01 ·

A molding system includes a frame device, a scooping device, a demolding device, a cutting device, an inspection device, a packaging device, and a conveying device. The frame device defines a scooping zone, a hot pressing zone, a cutting zone, an inspection zone, and a packaging zone. The scooping device includes a pulp tank that is adapted to contain a slurry, and a scooping mold that is adapted to scoop the slurry such that the slurry forms a blank unit thereon. The cutting device is adapted to cut the blank unit into a plurality of blank bodies. The conveying device is adapted to convey the blank bodies from the cutting zone to the packaging zone through the inspection zone.

A PICK-UP PRESS DEVICE AND METHOD OF PRODUCING A 3D-MOLDED PRODUCT FROM A PULP SLURRY
20220081846 · 2022-03-17 ·

The document relates to a pick-up press device for use in a process of producing a 3D molded product from a pulp slurry comprising a pick-up press tool presenting a porous first product face; a press tool presenting a second product face; and a vacuum source, connected to the pick-up press tool. The pick-up press tool and the press tool are vertically movable relative one another, wherein, in a first relative position of the press tools, at least one of the product faces is positioned so as to receive a pulp slurry layer in liquid form to its product face, and wherein in a second relative position of the press tools, the product faces are pressed towards each other for pressing the pulp slurry layer. The device further comprises a first transfer tool, wherein the first transfer tool comprises a first forming surface portion, configured to conform to a first portion of the porous first product face, such that a forming gap is defined there between, said forming gap defining a desired pulp slurry layer thickness; and a second forming surface portion, configured to diverge from a second portion of the porous first product face, such that a non-forming space is defined by the second forming surface portion and a second portion of the porous first product face, said non-forming space having a greater thickness than the forming gap.

A PICK-UP PRESS DEVICE AND METHOD OF PRODUCING A 3D-MOLDED PRODUCT FROM A PULP SLURRY
20220081846 · 2022-03-17 ·

The document relates to a pick-up press device for use in a process of producing a 3D molded product from a pulp slurry comprising a pick-up press tool presenting a porous first product face; a press tool presenting a second product face; and a vacuum source, connected to the pick-up press tool. The pick-up press tool and the press tool are vertically movable relative one another, wherein, in a first relative position of the press tools, at least one of the product faces is positioned so as to receive a pulp slurry layer in liquid form to its product face, and wherein in a second relative position of the press tools, the product faces are pressed towards each other for pressing the pulp slurry layer. The device further comprises a first transfer tool, wherein the first transfer tool comprises a first forming surface portion, configured to conform to a first portion of the porous first product face, such that a forming gap is defined there between, said forming gap defining a desired pulp slurry layer thickness; and a second forming surface portion, configured to diverge from a second portion of the porous first product face, such that a non-forming space is defined by the second forming surface portion and a second portion of the porous first product face, said non-forming space having a greater thickness than the forming gap.

DEVICE AND METHOD FOR PRODUCING A 3D MOLDED PULP PRODUCT
20220081847 · 2022-03-17 ·

The document relates to a device for producing a 3D molded product from a pulp slurry, comprising a pair of cooperating press tools, each having a respective product face. The press tools are movable relative each other between a closed press position, wherein the product faces are sufficiently close to press the pulp product there between, and an open transfer position, wherein the pulp product can be removed from the product face of one of the press tools. At least one of the product faces is porous. The device further comprises a radiation heater, which is adapted to radiate heat towards the product face of the porous press tool, when the porous press tool is in its open position.

DEVICE AND METHOD FOR PRODUCING A 3D MOLDED PULP PRODUCT
20220081847 · 2022-03-17 ·

The document relates to a device for producing a 3D molded product from a pulp slurry, comprising a pair of cooperating press tools, each having a respective product face. The press tools are movable relative each other between a closed press position, wherein the product faces are sufficiently close to press the pulp product there between, and an open transfer position, wherein the pulp product can be removed from the product face of one of the press tools. At least one of the product faces is porous. The device further comprises a radiation heater, which is adapted to radiate heat towards the product face of the porous press tool, when the porous press tool is in its open position.

CELLULOSE FIBER MOLDED PRODUCT AND METHOD FOR MANUFACTURING THE SAME

To provide a cellulose fiber molded product having improved tensile elastic modulus, preferably a cellulose fiber molded product also having improved tensile strength, and a method for manufacturing the same. A cellulose fiber molded product contains cellulose fibers as the main component, in which the cellulose fibers contain pulp and defibrated fibers, and the defibrated fibers contain microfibrillated cellulose. For manufacturing the molded product, a cellulose fiber slurry is prepared using the pulp and the defibrated fibers, wet paper is formed from the cellulose fiber slurry, and the wet paper is dehydrated, pressurized, and heated. At this time, as the defibrated fibers, microfibrillated cellulose, or microfibrillated cellulose and cellulose nanofibers are used.

METHOD OF MANUFACTURING DISPOSABLE STRAWS AND CUP LIDS
20220071421 · 2022-03-10 ·

The present invention provides a method for the manufacture of disposable straws (preferably having an average length between 10 cm and 30 cm) and cup lids from fibrous materials preferably including paper, cardboard, plant fibers, animal fibers, artificial fibers, fabrics made from one or more thereof; or non-woven materials made from one or more thereof. These manufacturing steps generally and preferably include: (1) feeding a strip of fibrous material into a tank of adhesive or glue for treating fibrous material with a solution of cellulose ester in a solvent; (2) feeding the treated fibrous material into a press or spiral winding unit; (3) drying, cutting, and forming the fibrous material into disposable straws or cup lids; (4) testing the formed disposable straws or cup lids for quality control; and (5) packaging the disposable straws or cup lids.

METHOD OF MANUFACTURING DISPOSABLE STRAWS AND CUP LIDS
20220071421 · 2022-03-10 ·

The present invention provides a method for the manufacture of disposable straws (preferably having an average length between 10 cm and 30 cm) and cup lids from fibrous materials preferably including paper, cardboard, plant fibers, animal fibers, artificial fibers, fabrics made from one or more thereof; or non-woven materials made from one or more thereof. These manufacturing steps generally and preferably include: (1) feeding a strip of fibrous material into a tank of adhesive or glue for treating fibrous material with a solution of cellulose ester in a solvent; (2) feeding the treated fibrous material into a press or spiral winding unit; (3) drying, cutting, and forming the fibrous material into disposable straws or cup lids; (4) testing the formed disposable straws or cup lids for quality control; and (5) packaging the disposable straws or cup lids.

3D PRINTED ARTICLES FOR USE IN PULP MOLDING DIE

According to examples, a 3D printed article for use as a screen device or a mold of a pulp molding die may include a body having a set of holes and a set of protuberances formed on a surface of the body interposed between some of the holes, in which a plurality of respective channels may be formed between the protuberances.