Compression-moulded tray and method of producing a fibre tray

摘要

A compression-molded tray of fiber material, said tray being formed of fiber material in a compression method, from a suspension of mechanical pulp of cellulose. The formed tray has been formed by press-drying using heat to a dry content of 80-95%, preferably 90-95%, and the fiber material of the formed tray has a density in the order of 400-650 kg/m3. The inside of the tray is provided with a protective barrier.

主权项

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.