Mouldable fibrous sheet and a production method thereof
AssigneeStora Enso OYJ
InventorsIsto Heiskanen, Mari Hiltunen, Nina Ruohoniemi, Titta Lammi, Ville Ribu, Tim Lindfors, Jari Räsänen
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Abstract
The present invention relates to a web of fibrous cellulosic material derived from wood pulp, said web being suitable for three-dimensional moulding to form a packaging product, wherein the web comprises >40 wt % of soft wood chemical pulp and at least one strength enhancement agent, wherein the web has a grammage less than 400 g/m2, and wherein the cellulose fibers of said soft wood chemical pulp comprise a fiber curl of >9%.
Claims15
A web of fibrous cellulosic material derived from wood pulp, said web being suitable for three-dimensional moulding to form a packaging product, wherein the web comprises:
- >40 wt % of soft wood chemical pulp comprising cellulose fibers, and
- at least one strength enhancement agent,
- wherein the web has a grammage less than 400 g/m2, and
- wherein the cellulose fibers of said soft wood chemical pulp comprises a fiber curl of >9%,
- wherein said strength enhancement agent comprises a natural binder agent in the form of a starch, at an amount of 10-75 kg/tn.
Dependencies are inferred from the claim text.