Patent ID: 9187866
Filing Date: 2015-11-17
Classification: B65D,D21J

Abstract:
1. A method of producing a fibre tray, comprising the steps of: a. forming a fibre tray by immersing a dewatering tray having the shape of the tray to be produced into a bath of a suspension of mechanical pulp and dewatering the suspension in the dewatering tray, the mechanical pulp comprising at least 75% virgin fibre-based mechanical pulp from the group, CMP, CTMP, cTMP, HTCTMP and mixtures thereof; b. press-drying using a suitably smooth pressing tool and heating the formed tray to a dry content of 80-95% and a density of 400-650 kg/m3; and c. coating the dried fibre material with a protective barrier having a thickness of 50 μm or less producing a coated press-dried fibre tray, wherein the coating is free of pin-holes.