A smoothly bendable board including a middle layer, a first outer layer attached to the middle layer and a second outer layer attached to the middle layer is disclosed. The second outer layer has a lower bending stiffness according to ISO 5628 than the first outer layer such that the smoothly bendable board is outwardly bendable only in a direction towards which the second layer faces. A method for producing a smoothly bendable board is also disclosed.

A smoothly bendable board including a middle layer, a first outer layer attached to the middle layer and a second outer layer attached to the middle layer is disclosed. The second outer layer has a lower bending stiffness according to ISO 5628 than the first outer layer such that the smoothly bendable board is outwardly bendable only in a direction towards which the second layer faces. A method for producing a smoothly bendable board is also disclosed.

Various embodiments are directed to repulpable and recyclable container comprising an outer liner, an inner liner, a sidewall medium arranged between the outer liner and the inner liner, the sidewall medium being defined at least in part by a sidewall flute, and one or more coating layers adhered to one or more of a first outer liner surface, a second outer liner surface, a first inner liner surface, and a second inner liner surface; wherein the container is configured such that the flute is adhered to the outer liner and the inner liner via at least one volume of adhesive configured to directly engage at least a portion of the one or more coating layers. Various embodiments are directed to a container manufacturing system configured to produce a repulpable and recyclable container. Various embodiments are directed to a method of manufacturing a repulpable and recyclable container.

A plant (10) for the production of corrugated cardboard comprising: a corrugating unit (36) adapted to produce containerboard, and a double baker (60) adapted to receive the containerboard. The corrugating unit (36) is positioned in proximity to an output end (66) of the double baker (60). The plant (10) further comprises a transfer unit (72) adapted to receive the containerboard and move it. The transfer unit (72) comprising: an input end (722) for the containerboard positioned in proximity to the corrugating unit (36), and an output end (724) for the containerboard positioned in proximity to an input end (64) of the double baker (60).

An improved adhesive composition having increased insulative properties is provided. The adhesive composition having improved insulative properties includes a starch component; an alkaline component; sodium tetraborate; water; and a plurality of expandable microspheres. Products having improved insulation capabilities and methods of making the products having improved insulation capabilities are also provided. The present adhesive and products including the adhesive is environmentally friendly.

The invention concerns a corrugating roll for producing a corrugated web, having a fluting, from a material web. The corrugating roll has a corrugating roll body, a central longitudinal axis, a peripheral direction about the central longitudinal axis and a surface fluting with at least one first corrugating tooth, which is arranged peripherally on the corrugating roll body, and at least one second corrugating tooth arranged peripherally on the corrugating roll body and which differs from the at least one first corrugating tooth for reducing corrugating roll operation-related vibrations.

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.

A corrugating roll unit conveyance apparatus includes a mounting base having a first accommodation part for accommodating a corrugating roll unit to be removed and a second accommodation part for accommodating a corrugating roll unit to be installed; and a movement device for moving the mounting base to a first replacement position at which the first accommodation part faces the existing corrugating roll unit, a second replacement position at which the second accommodation part faces a space from which the existing corrugating roll unit has been removed, and a retracted position separated from the first replacement position and the second replacement position.

Provided is a cardboard conversion line including a wet cyclone dust collector for removing dust laden air from the conversion line. The wet cyclone dust collector has a swirl chamber in which air containing particles swirls in a rotational direction and a plurality of circumferentially spaced nozzles located within the swirl chamber to direct a spray of fluid within the swirl chamber in the rotational direction to wet the air containing particles, and the wetted particles are separated from the air in the swirl chamber. In this way, a system may be provided to clean high volumes of air containing particles without having to provide an explosion vent and without having to provide additional fans, motors, and compressed air.

The invention relates to a method and an apparatus for the production of a corrugated cardboard product. The apparatus comprises a first one-sided machine and a second one-sided machine which are provided in each case with a press-down belt and with a first and a second grooving roller respectively. The first and the second grooving roller are designed for embossing a wave profile onto a first and a second paper web respectively. The press-down belts serve, together with the respective grooving rollers, for connecting the first and the second paper webs in each case to a non-corrugated web for the production of a first and a second single-flute corrugated cardboard web respectively. The first one-sided machine is equipped with a first oblique guide roller, the axis of rotation of which is inclined at a vertical inclination angle between side margins of the first paper web.