Verfahren und Vorrichtung zur Trockenherstellung von Steifen Zelluloseprodukten

Details

Veröffentlichungs-Nr.

EP4782195

Anmeldetag

23. Januar 2025

Veröffentlichung

29. Juli 2026

Rechtsraum

EP

Abstract

The present invention relates to an apparatus and method for dry manufacturing rigid cellulose products (2) having essentially non-flat general shape from a discrete cellulose blank. The apparatus comprises a moulding tool having a first mould part (15) and a second mould part (16), wherein at least one of the first mould part (17) and the second mould part (18) is displaceable in the axial direction in relation to the other in order to press the cellulose blank therebetween. The first mould part (15) comprises a lower press-surface (23) and a cylinder-shaped inner guide wall surface (27), wherein the cylinder-shaped inner guide wall surface (27) defines a guide chamber (28), and the second mould part (16) comprises an upper press-surface (19) and a cylinder-shaped outer guide wall surface (29), wherein the cylinder-shaped outer guide wall surface (29) defines a guide body (30). The cross-section of the outer guide wall surface (29) corresponding to the cross-section of the inner guide wall surface (27), and a gap (Y) in the transversal direction between the inner guide wall surface (27) and the outer guide wall surface (29) is equal to or more than 0,015 mm and equal to or less than 0,5 mm.

Anmelder

Firma

Yangi AB

Land

🇸🇪 Schweden