Patent ID: 6197230
Filing Date: 2001-03-06
Classification: D01D,D01F,D04H

Abstract:
Process for the preparation of a mixture of cellulosic fibers and microfibers, comprising:the preparation of a cellulosic solution (C);the extrusion of said solution (C) through the hole(s) of a die (1);the disintegration of said solution (C) when it comes out of said hole(s) by projecting a liquid or gaseous fluid (F) in a direction making an angle less than or equal to 75 degrees with the axis of said die (1); said fluid (F) being neutral or adapted to regenerate or precipitate, only partially, the cellulose;the reception in a cellulose regeneration or precipitation bath, of the dispersion generated at the disintegration step;the recovery of the mixture of fibers and microfibers, more or less bonded, obtained in said bath.