Process for the production of a paper or board product and a paper or board produced according to the process
AssigneeStora Enso OYJ
InventorsIsto Heiskanen, Lars Axrup, Risto Laitinen
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Abstract
The present invention relates to a process for the production of a paper or paperboard comprising at least two plies wherein microfibrillated cellulose is added to the surface of a first ply and the other ply is attached to the first ply so that the microfibrillated cellulose located in between the plies. The invention further relates to a paper or board produced according to the method.
Claims20
Process for the production of a paper or board comprising at least two plies wherein the process comprises the steps of;
- providing a first ply,
- applying a layer consisting essentially of microfibrillated cellulose and optionally at least one additive selected from the group consisting of a filler, a strength enhancer, and starch to a surface of the first ply,
- providing a second ply and
- attaching the second ply to the first ply so that the layer of microfibrillated cellulose is located in between the first and second ply.
Process for the production of a paper or board comprising at least two plies wherein the process comprises the steps of;
- providing a first ply,
- applying a layer consisting essentially of microfibrillated cellulose and optionally at least one additive selected from the group consisting of a filler, a strength enhancer, and starch to a part of a surface of the first ply,
- providing a second ply and
- attaching the second ply to the first ply so that the layer of microfibrillated cellulose is located in between the first and second ply.
Dependencies are inferred from the claim text.