| 摘要 |
A production method of lyocell filament for the clothing is provided to raise the sense of feeling and drape by forming the filament of high expansibility, and to obtain excellent material property by preventing fibril generation. A cellulose powder is formed from a cellulose sheet. The imbibed and homogenized cellulose solution is produced by supplying the cellulose powder and the NMMO(N-methylmorpholine-N-oxide) concentrated in liquid phase to the extruding machine, and by dispersing, mixing, cutting, kneading and dissolving in the extruding machine, and through the extruding machine having screws for allowing measuring function. The cellulose solution is extruded and spun through the spin nozzle having 20-200 orifices, and is passed through the air layer, and is transferred to the solidification bath. A roller(7) for converting the filament into the horizontal direction is installed inside the solidification bath. The filament is obtained by adjusting the width of the filament contacted with the roller surface to 500-2000 mm^2. The lyocell filament is formed of the filament by flushing, drying, oil treating and rolling. |
