A method for production of a female embossing tool intended for embossing a sheet element: provide a female embossing tool with an outer layer made of a material with shape-memory type properties, and the outer face of the layer has no recesses; provide a male embossing tool with an outer face with at least one protuberance corresponding to at least one desired embossing relief that is to be formed on the sheet element after embossing; and cooperation of the male embossing tool with the female embossing tool such that the outer layer of the female embossing tool undergoes a plastic deformation which creates at least one recess of a shape complementary to the protuberance(s) of the male embossing tool.

A device for forming a peripheral edge of a cup blank made of paper material, having at least one forming tool, wherein the forming tool is arranged on a tool carrier which is arranged so as to be rotatable about a rotation axis, wherein the rotation axis coincides with a longitudinal centre axis of the cup blank inserted into the device. The forming tool and the tool carrier are configured and arranged so as to travel along a profile, deviating from a circular shape, of the peripheral edge of the cup blank.

A device for forming and pressing a mouth piece of a container comprising fibers, for example pulp, wherein the device comprises a mold for surrounding at least one outer surface of a mouth region of the container in which the mouth piece is to be formed, wherein the mold comprises a structure for forming the mouth piece. The device also comprises a mandrel for introduction into an opening of the mouth region and a movement means for performing a relative movement between the mold and the mandrel to reduce a clearance of the mold and the mandrel, and thus to form and press the mouth piece. This disclosure also includes a method for forming and pressing a mouth piece of a container comprising fibers, for example pulp, using the device.

A device for forming and pressing a mouth piece of a container comprising fibers, for example pulp, wherein the device comprises a mold for surrounding at least one outer surface of a mouth region of the container in which the mouth piece is to be formed, wherein the mold comprises a structure for forming the mouth piece. The device also comprises a mandrel for introduction into an opening of the mouth region and a movement means for performing a relative movement between the mold and the mandrel to reduce a clearance of the mold and the mandrel, and thus to form and press the mouth piece. This disclosure also includes a method for forming and pressing a mouth piece of a container comprising fibers, for example pulp, using the device.

A method for production of a female embossing tool (6) intended for embossing a sheet element (60): provide a female embossing tool (6) with an outer layer (44) made of a material with shape-memory type properties, and the outer face of the layer has no recesses; provide a male embossing tool (5, 5) with an outer face with at least one protuberance corresponding to at least one desired embossing relief that is to be formed on the sheet element (60) after embossing; and cooperation of the male embossing tool (5, 5) with the female embossing tool (6) such that the outer layer (44) of the female embossing tool (6) undergoes a plastic deformation which creates at least one recess (42, 42) of a shape complementary to the protuberance(s) (41, 41) of the male embossing tool (5, 5).

In a method for manufacturing a fibrous paper-plastic disc-shaped product, a pulp sheet is prepared, sent to a cutting machine, and cut into a primitive sheet. The primitive sheet is formed by at least one primitive material for manufacturing a desired fibrous product and has a surface coated with a solution containing an additive. The primitive sheet is set still to achieve an osmotic balance inside the primitive sheet, and passed through a hot-press machine for hot pressing to press and dry the primitive sheet into a dry molded plate. Each primitive material of the original primitive sheet is pressed into a shape of the desired fibrous product to form a dry molded product. Finally, the dry molded plate is sent to a trimming machine for trimming and cutting, so that each dry molded product on the dry molded plate is formed into the fibrous product.

In a method for manufacturing a fibrous paper-plastic disc-shaped product, a pulp sheet is prepared, sent to a cutting machine, and cut into a primitive sheet. The primitive sheet is formed by at least one primitive material for manufacturing a desired fibrous product and has a surface coated with a solution containing an additive. The primitive sheet is set still to achieve an osmotic balance inside the primitive sheet, and passed through a hot-press machine for hot pressing to press and dry the primitive sheet into a dry molded plate. Each primitive material of the original primitive sheet is pressed into a shape of the desired fibrous product to form a dry molded product. Finally, the dry molded plate is sent to a trimming machine for trimming and cutting, so that each dry molded product on the dry molded plate is formed into the fibrous product.

A method for forming a composite structure may include positioning a composite sheet adjacent to a die opening. A portion of the composite sheet may be constrained between a first forming surface and a second forming surface. The first forming surface may be spaced a gap distance from the second forming surface. The gap distance may be substantially equal to or greater than the sheet thickness. The composite sheet may be urged through the die opening and along a third forming surface to form a composite bottom from the composite sheet.

A tray made of cardboard, paperboard or other lightweight foldable sheet material that comprises one or more pockets (8) for receiving product. The tray comprises a top sheet defining one or more top sheet openings for the one or more pockets and a bottom sheet attached to the top sheet that comprises one or more bottom sheet openings that are aligned with the top sheet openings.

A process for making a hermetically sealed package, which includes forming a sheet of wrapping made of plastic material, in particular having a thickness of less than or equal to 140 m. The process envisages: forming on the sheet a first, hollow, portion and a second, perimetral, portion, which delimits at least partially the first portion; inserting the product into the hollow portion obtained in the sheet of wrapping; applying a second sheet of wrapping in contact with the perimetral portion so as to close the hollow portion with the product inside; and welding the second sheet on the first sheet along the perimetral portion. Forming the first sheet includes providing on the second, perimetral, portion a series of pleats of the sheet, which are then sealed.