Method for coating a fibrous web, and a surface coated fibrous web
AssigneeStora Enso OYJ
InventorsKaj Backfolk, Isto Heiskanen, Otto Nylén
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Abstract
A method is provided for coating a fibrous web, in particular a fibrous web comprising nanocellulose fibres. The method includes steps of applying a coating agent to a textured surface region of a textured substrate, applying a fibre furnish or a wet fibrous web onto the coated textured surface region of the textured substrate, optionally dewatering to provide a wet fibrous web, and drying said wet fibrous web such that at least a portion of said coating agent is transferred to said fibrous web. The method provides a coated fibrous web with improved barrier properties.
Claims19
A method for coating a fibrous web, said method comprising the steps of:
- a. providing a textured substrate having at least one textured surface region,
- b. applying a coating agent to the textured surface region of said textured substrate, so as to provide a coated, textured surface region of said textured substrate;
- c. applying a fibre furnish onto the coated, textured surface region of said textured substrate;
- and dewatering said fibre furnish to provide a wet fibrous web, or,
- d. applying a wet fibrous web onto the coated, textured surface region of said textured substrate;
- e. drying said wet fibrous web from step c. or step d. such that at least a portion of said coating agent is transferred to said fibrous web, and
- f. removing the fibrous web from said textured surface region after step e., thereby providing a coated fibrous web.
Dependencies are inferred from the claim text.