Method for manufacturing fluting and/or liner for corrugated board
AssigneeStora Enso OYJ
InventorsIsto Heiskanen, Jukka Kankkunen, Ismo Saarinen, Jukka Lyyra, Juha Korvenniemi, Harri Taipale, Hannu Heikkinen
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Abstract
A method for manufacturing fluting and/or liner for corrugated board, comprising the step(s): a) using broke obtained from manufacturing of liner in the pulp used for manufacturing of fluting wherein at least 50% of the broke is external broke from the manufacturing of liner, and/or b) using broke obtained from manufacturing of fluting in the pulp used for manufacturing of liner wherein at least 50% of the broke is external broke from the manufacturing of fluting.
Claims14
A method for manufacturing fluting and/or liner for corrugated board, comprising the step(s):
- a) providing broke, obtained from manufacturing of a liner, as a pulp and manufacturing a fluting from the broke, wherein at least 50% of the broke is external broke from the manufacturing of the liner,
- or
- b) providing broke, obtained from manufacturing of a fluting, as a pulp and manufacturing a liner from the broke, wherein at least 50% of the broke is external broke from the manufacturing of the fluting,
- or both a) and b), and,
- c) forming a corrugated board with the fluting manufactured in step a), the liner manufactured in step b), or both.
A corrugated board comprising:
- a fluting and a liner,
- wherein
- i) the fluting comprises broke from a manufacturing of a liner, wherein at least 50% of the broke is external broke from the manufacturing of liner,
- ii) the liner comprises broke obtained from a manufacturing of a fluting, wherein at least 50% of the broke is external broke from the manufacturing of fluting, or
- both i) and ii).
Dependencies are inferred from the claim text.