| 摘要 |
The invention relates to a method and a device for producing lyocell fibres, which are extruded from a cellulose solution consisting of water, cellulose and a tertiary amino oxide in a spinning head (25). The cellulose solution is obtained directly in several method steps from the cellulose (3, 4), forming a cellulose suspension. As during the course of the processing of the cellulose, the degree of polymerisation reduces until the cellulose is extruded in the cellulose solution, there is a risk that the continuous moulded bodies (2) that are extruded by the spinning head (25) are of a poor quality. The aim of the invention is to process cellulose (3, 4) with a low degree of polymerisation, without having to sacrifice the quality. To achieve this, the residence time of the cellulose from its introduction into the device (1) until the extrusion of the cellulose (3, 4) in the cellulose solution is adjusted based on the degree of polymerisation of the cellulose, the cellulose suspension and/or the cellulose solution. |
