Single layer white kraftliner

Abstract

There is provided a single layer white kraftliner having a grammage from 120 to 185 g/m2 when measured according to ISO 536:2019, wherein the kraftliner: comprises bleached hardwood fibers and bleached softwood fibers in a dry weight ratio from 95:5 to 82:18; comprises a first surface that is coated with a first coating composition comprising starch and pigment; comprises a second surface that is coated with a second coating composition comprising starch and pigment; has a Bendtsen roughness of less than 300 ml/min on at least one of the surfaces when measured according to ISO 8791-2:2013; has a specific formation of less than 0.7 √g/m when measured according to SCAN-P 92:09; has a compressive strength index in the cross direction (CD) of at least 21 Nm/g when measured using a short-span compressive tester according to ISO 9895:2008; and has a geometric tensile stiffness index of at least 5.2 kNm/g when measured according to ISO 1924-3:2005. There is also provided a method of producing a single layer white kraftliner.

Dependencies are inferred from the claim text.