Paper and method for making paper
AssigneeUPM-Kymmene Oyj
InventorsTarja Sinkko, Mikko Oksanen, Janne Varvemaa, Kyösti Haapoja, Teuvo Lappänen
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Abstract
The invention relates to a paper that is formed of a fibre-based source material and is applicable as printing paper. According to the invention, the surface of the paper is surface-treated by arranging on the surface sufficient density in such manner that the density of at least one surface layer of the paper is sufficiently high to yield a Gurley-Hill value of over 7000 s/100 ml as measured from the entire paper. Furthermore, the invention relates to a method for making paper.
Claims21
A paper that is formed of a fibre-based source material and is applicable as printing paper, wherein the surface of the paper is surface-treated by arranging sufficient density on the surface in such manner that the density of at least one surface layer of the paper is sufficiently high to yield a Gurley-Hill value of over 7000 s/100 ml as measured from the entire paper.
A method for making paper, wherein paper that is applicable as printing paper is formed of a fibre-based source material, wherein the surface of the paper is surface-treated in order to arrange sufficient density on the surface in such manner that the density of at least one surface layer of the paper is sufficiently high to yield a Gurley-Hill value of over 7000 s/100 ml as measured from the entire paper.
Dependencies are inferred from the claim text.