| 摘要 |
<p>The filaments are spun by a spinneret (1) from a cellulose solution. They enter a cooling chamber (2) with two cooling sections (2a, 2b). Here the filaments are subjected to process- or cooling air in two different quantities, temperatures and/or humidities. The filaments are spun as lyocell filaments. The solution of cellulose is a mixture with water and a tertiary amine oxide. The cellulose concentration is 1-22 wt%. Air is supplied to the two sections, 2, 2b respectively, in a preferred ratio 4.5 : 10. Temperatures in these sections are 18-80[deg] C (2a) and 18-35[deg] C (2b). Aerodynamic stretching (4) follows cooling. This in turn is followed by laying, but first it is ensured that the cellulose is coagulated. Following laying, the fleece is treated with an aqueous medium or is washed. It is then dewatered. The preferred spinneret perforation density is 1.5-7.5 holes/cm 2>. The connection between cooling chamber and stretching unit is sealed from the exterior. A laying unit (6) with a diffuser (13, 14) is used between the stretching unit and the further laying equipment. An independent claim IS INCLUDED FOR the equipment used.</p> |
