Verfahren zur Trockenherstellung von Starren Celluloseprodukten

Details

Veröffentlichungs-Nr.

EP4744849

Anmeldetag

14. November 2024

Veröffentlichung

20. Mai 2026

Rechtsraum

EP

Abstract

The present invention relates to a method and an apparatus (1) for dry manufacturing rigid cellulose product (2) having essentially non-flat general shape from a cellulose blank (10). The method comprises the steps of providing an air-laid cellulose blank (10), transferring the cellulose blank (10) to a product forming unit (11), and producing rigid cellulose products (2) in the product forming unit (11), wherein the product forming unit (11) comprises heating means for heating the cellulose blank (10) to a forming temperature T, the product forming unit (11) comprising a moulding tool having a first mould part (15) and a second mould part (16), wherein the heated cellulose blank (10) is pressed between the first mould part (15) and the second mould part (16) by applying a forming pressure P in the axial direction of the moulding tool, and removing the pressed cellulose product from the moulding tool. The primed cellulose pulp sheet (7) has an added barrier dispersion (34) that comprises water and/or fat resistance barrier dispersion (34) that comprises water (35) and a barrier additive (36), wherein the pressed cellulose product (2) is provided with water and/or fat resistance barrier properties, and the method further comprises the step of adding a nano-coating to the pressed cellulose product (2) in order to also provide gas transmission resistance properties to the final cellulose product (2).

Anmelder

Firma

Yangi AB

Land

🇸🇪 Schweden