A corrugated cardboard plant, including at least one corrugated cardboard production device for producing at least one corrugated cardboard web laminated on one side, having a respective corrugated web and a cover web; a connection device, disposed downstream of the at least one corrugated cardboard production device, for connecting the at least one corrugated cardboard web laminated on one side and a lamination web to one another, while forming an at least three-ply corrugated cardboard web; at least one cutting device for generating corrugated cardboard sheets from the at least three-ply corrugated cardboard web; and at least one individual code reading device for reading corrugated cardboard sheet individual codes on at least one of the webs of the at least three-ply corrugated cardboard web and/or on at least one of the webs for forming the at least three-ply corrugated cardboard web and/or on the corrugated cardboard sheets.

A network-based system and method for providing desired moisture set point values for individual papers lines based on the physical properties of each liner and the atmospheric conditions associated with a corrugator is disclosed. The desired moisture set point values are based on the hygroexpansivity of each individual paper liner. Once the moisture set point value has been determined, a conditioning apparatus adjusts a moisture value for each liner in order to tune the post-warp characteristics of the final corrugated product.

Systems and methods for forming corrugated boards are disclosed. The system includes a single face unit configured to form a single face board having a fluted layer and an outer liner. The system also includes a single face buffer configured to store or hold a length of the single face board. The system has a glue station configured to attach a second outer liner to the single face board to form a single wall board. The system also has an ultrasonic unit configured to apply ultrasonic vibrations to the single wall board. The ultrasonic vibrations are configured to remove moisture from the single wall board, activate, heat, and/or dry an adhesive used to attach the fluted layer and the outer liners, and/or cause the fibers of the fluted layer and the outer liners to weave, intertwine, or otherwise stick together.

Apparatus to create on demand customized cardboard for forming individually designed packaging boxes, said cardboard having at least one corrugated layer sandwiched between two flat layers, the apparatus comprising a joining station that attaches a second flat layer to a corrugated layer attached to a first layer, supply system to supply said corrugated layer with the first flat layer attached thereto to said joining station, supply system to supply said second flat layer to said joining station, a control system operable to obtain information on the dimensions of a packaging box to be formed and on a design selected for that box and further operable to match the selected design to the dimensions of the box and a printing unit to print the matched design on the first and/or on the second flat layer.

Apparatus to create on demand customized cardboard for forming individually designed packaging boxes, said cardboard having at least one corrugated layer sandwiched between two flat layers, the apparatus comprising a joining station that attaches a second flat layer to a corrugated layer attached to a first layer, supply system to supply said corrugated layer with the first flat layer attached thereto to said joining station, supply system to supply said second flat layer to said joining station, a control system operable to obtain information on the dimensions of a packaging box to be formed and on a design selected for that box and further operable to match the selected design to the dimensions of the box and a printing unit to print the matched design on the first and/or on the second flat layer.

One or more implementations of a multi-layer film include a first layer non-continuously bonded to a second pigmented layer. The multi-layer film includes an unexpected appearance differing from the appearance of the pigmented layer. In one or more embodiments, the multi-layer film includes a metallic appearance despite the pigmented layer being devoid of metallic pigment. The multi-layer film also includes areas that are visually distinct from areas of the film with the unexpected appearance. The visually-distinct areas comprise areas in which the first layer non-continuously is in intimate contact with the second pigmented layer. The visually-distinct areas have the appearance of the pigmented layer or another appearance. One or more implementations also include methods of making multi-layer films and bags with an unexpected appearance and visually-distinct areas.

A means of making a multi ply structural panel by eliminating the top liner in the corrugating process. The present invention is made possible through modification to the corrugating rolls of the singlefacer. The design modification to the rolls involves incorporation of slots that run around the circumference of one roll and mating creasing tools incorporated around the circumference of the other of the corrugated roll set. These slots and creasing tools are incorporated across the existing flutes of the corrugating rolls.

The invention relates to a corrugated board system, comprising at least one intermediate web dispensing device for dispensing at least one intermediate web, at least one cover web dispensing device for dispensing at least one cover web, at least one corrugated board production device arranged downstream of the at least one intermediate web dispensing device and cover web dispensing device for producing at least one corrugated board web laminated on one side from the at least one cover web and intermediate web, a laminating web dispensing device for dispensing a laminating web, a connecting device for connecting the at least one corrugated board web laminated on one side and the laminating web to one another upon formation of a corrugated board web laminated on both sides, at least one transport carriage for transporting at least one material roll along at least one movement path between at least one material roll store and the at least one intermediate web dispensing device, cover web dispensing device and/or laminating web dispensing device, and a control device for actuating the at least one transport carriage.

A corrugated cardboard plant has a corrugated cardboard production assembly having at least one device for producing at least one corrugated cardboard web which is laminated on one side, and a connecting device for generating a corrugated cardboard web which his laminated on both sides and which comprises the at least one corrugated cardboard web which is laminated on one side. The corrugated cardboard plant furthermore has a printed web/lamination web production assembly which has a printing device for printing a printed web, a printed web storage device, and a lamination web unwinding device for unwinding a lamination web. The corrugated cardboard plant moreover has a coupling/uncoupling assembly having a coupling device for coupling the printing device to the corrugated cardboard production assembly while using the printed web as the lamination web in the corrugated cardboard production assembly, and/or an uncoupling device for uncoupling the printing device from the corrugated cardboard production assembly while using the lamination web in the corrugated cardboard production assembly.

A single facer equipped with a plurality of corrugated roll units each composed of a pair of corrugated rolls is provided with: a lifting/lowering device that causes each of the corrugated roll units to be lifted and lowered between a use position at which a core sheet is to be corrugated, a first position adjacent to and directly under the use position, and a second position adjacent to and directly under the first position; a horizontal movement device that causes each of the corrugated roll units to be moved horizontally between the first position, a third position adjacent to the first position on one side in a sheet transfer direction, and a fourth position adjacent to the first position on the other side in the sheet transfer direction; and a control device that controls the lifting/lowering device and the horizontal movement device to move the corrugated roll units.