Method for production of a multi-ply paperboard

EP4575084B1Active Publication Date: 2025-11-12BILLERUD AB
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
EP2023218168
Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2023-12-19
Publication Date
2025-11-12
Estimated Expiration
2043-12-19

Smart Images

  • Figure IMGF0001
    Figure IMGF0001
  • Figure IMGF0002
    Figure IMGF0002
  • Figure IMGF0003
    Figure IMGF0003
Patent Text Reader

Abstract

There is provided a method of forming a multi-ply paperboard comprising at least a first ply and a second ply in a full-scale paperboard machine, wherein the method comprises the following steps: - forming a first ply web and a second ply web in a wire section of the paperboard machine; - spraying water substantially free from bonding chemicals onto a surface of the first ply web or second ply web to obtain a wetted surface in the wire section; and - merging the wetted surface with a surface of the other web by couching.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Method for manufacturing a multiply paperboard, and a multiply paperboard

    WO2023062557A1

  • Process for the production of a paper or board product and a paper or board produced according to the process

    WO2011056135A1

  • Coreless rolls of a tissue paper product and methods of manufacturing coreless rolls

    WO2022003423A1

  • Production of paper- or linerboard

    WO2023198916A1