Methods and apparatus for manufacturing vacuum forming a produce container using a fiber-based slurry. The slurry includes a moisture barrier comprising alkyl ketene dimer in the range of about 4% by weight, and a cationic liquid starch component in the range of 1%-7% by weight.

Methods and apparatus for manufacturing vacuum forming a produce container using a fiber-based slurry. The slurry includes a moisture barrier comprising alkyl ketene dimer in the range of about 4% by weight, and a cationic liquid starch component in the range of 1%-7% by weight.

A transfer device includes a wet blank transfer mold internally provided with an airtight air chamber, a front face with a recessed matching cavity configured to be sheathed on the outside of a pulp wet blank container and is recessed towards the airtight air chamber. The recessed matching cavity includes several small communicating holes provided respectively in an inner wall of each recessed matching cavity and at the bottom of the recessed matching cavity for communication between the recessed matching cavity and the airtight air chamber. A moving frame parallel to the wet blank transfer mold with evenly spaced vacuum cups, is connected to a back face of the wet blank transfer mold via a guiding mechanism. A driver connected between the back face of the wet blank transfer mold and the moving frame to drive the moving frame to move relative to the wet blank transfer mold.

A beverage container packaging assembly includes a bottom tray, center support, and top tray. A bottom tray of molded paper pulp includes a plurality of cup-shaped elements. The cup-shaped elements include a first deformable element and a second deformable element. At least one of the first deformable element and the second deformable element includes at least two overlapping elements. A top tray of molded paper pulp includes a plurality of bottle neck accommodating spaces. A center support of molded paper pulp disposed between the bottom tray and the top tray. The center support includes beverage container support cavities bounded by one or more center support posts. The beverage container support cavities are configured to surround at least a portion of the beverage container. The support cavities include a draft such that the cavities decrease in diameter from a bottom end to a top end of the center support.

A beverage container packaging assembly includes a bottom tray, center support, and top tray. A bottom tray of molded paper pulp includes a plurality of cup-shaped elements. The cup-shaped elements include a first deformable element and a second deformable element. At least one of the first deformable element and the second deformable element includes at least two overlapping elements. A top tray of molded paper pulp includes a plurality of bottle neck accommodating spaces. A center support of molded paper pulp disposed between the bottom tray and the top tray. The center support includes beverage container support cavities bounded by one or more center support posts. The beverage container support cavities are configured to surround at least a portion of the beverage container. The support cavities include a draft such that the cavities decrease in diameter from a bottom end to a top end of the center support.

According to examples, a non-transitory computer-readable medium may have stored thereon instructions that may cause a processor to obtain a digital model of a transfer screen to be 3D fabricated. The processor may also determine placements of pores in the digital model, in which the transfer screen is to be mounted on a transfer mold via an attachment mechanism and to engage a surface of a wet part formed on a corresponding forming screen. The forming screen may have a first shape and the transfer screen may have a second shape that is complementary to the first shape, and the locations of the pores may be determined to allow liquid to be suctioned from the wet part when a vacuum pressure is applied to the transfer mold. The processor may further modify the digital model of the transfer screen to include the pores at the determined placements.

According to examples, a non-transitory computer-readable medium may have stored thereon instructions that may cause a processor to obtain a digital model of a transfer screen to be 3D fabricated. The processor may also determine placements of pores in the digital model, in which the transfer screen is to be mounted on a transfer mold via an attachment mechanism and to engage a surface of a wet part formed on a corresponding forming screen. The forming screen may have a first shape and the transfer screen may have a second shape that is complementary to the first shape, and the locations of the pores may be determined to allow liquid to be suctioned from the wet part when a vacuum pressure is applied to the transfer mold. The processor may further modify the digital model of the transfer screen to include the pores at the determined placements.

A three dimensional molded object comprising a mixture of cellulose fibers and microfibrillated cellulose, and optionally one or more inorganic particulate material, wherein the microfibrillated cellulose is present in an amount of about 0.5 wt. % to about 50 wt. % on a dry weight basis of the total dry mass of the mixture of cellulose fibres and microfibrillated cellulose, and optionally one or more inorganic particulate material; wherein the coarsely microfibrillated cellulose comprises less than about 90 wt. % fines and/or less than 75% fines A, and a length-weighted median length Lc(w) of greater than 0.3 mm, as measured by fibre image analyzer, and wherein the microfibrillated cellulose optionally has a fibre steepness of about 20 to about 50, as measured by Malvern Mastersizer.

A three dimensional molded object comprising a mixture of cellulose fibers and microfibrillated cellulose, and optionally one or more inorganic particulate material, wherein the microfibrillated cellulose is present in an amount of about 0.5 wt. % to about 50 wt. % on a dry weight basis of the total dry mass of the mixture of cellulose fibres and microfibrillated cellulose, and optionally one or more inorganic particulate material; wherein the coarsely microfibrillated cellulose comprises less than about 90 wt. % fines and/or less than 75% fines A, and a length-weighted median length Lc(w) of greater than 0.3 mm, as measured by fibre image analyzer, and wherein the microfibrillated cellulose optionally has a fibre steepness of about 20 to about 50, as measured by Malvern Mastersizer.

A pulp molding production line includes a forming machine, a pulp molding manipulator and a press. The pulp molding manipulator having a mounted transfer device which includes a wet blank transfer mold having an interior airtight air chamber. A front face of the wet blank transfer mold is provided with at least one recessed matching cavity that can be sleeved on an outside of a wet pulp blank product that is recessed toward the airtight air chamber, and the recessed matching cavity matches the product. An inner wall and a bottom of the recessed matching cavity are respectively provided with a plurality of small communicating holes. A back face of the wet blank transfer mold is connected to a moving frame through a guide mechanism. A driver connects between the back of the wet blank transfer mold and a moving frame which is provided with uniformly spaced vacuum cups.