MULTILAYERED FIBROUS PRODUCT AND A PROCESS FOR THE PRODUCTION THEREOF

Petri Silenius (Inventor), Leena Yliniemi (Inventor), Jari Meuronen (Inventor), Markku Leskelä (Inventor)

Research output: Patent

Abstract

The multi-layer fibrous product and a process for producing it. According to the present invention the fibre product comprises at least two overlapping fibre layers, whereby the one that forms the top layer of the product contains filler and is lighter than the layer under it and is at least essentially opaque. According tothe present invention the filler of the top layer consists at least partially of cellulose or lignocellulose fibrils, on which light scattering material particles have been precipitated. The present invention can be used, for example, to produce white surface liner with a lighter top layer without impairment of the strengthof the surface. Thus, the grammage of the layer can be at least about 5% by weight less than a top layer, which has the corresponding opacity and formation, and which has been produced from the same fibre material and mineral pigments.
Original languageEnglish
Patent numberWO02092910
IPCD21H17/69 D21H17/70 D21H27/38 (+4)
Priority date24/04/2002
Publication statusPublished - 21 Nov 2002
MoE publication typeH1 Granted patent

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