| 摘要 |
The invention relates to a method for stabilising the spinning solution on production of cellulose composite moulded bodies with functional materials by the dry-wet extrusion method, permitting the inclusion of both active materials detrimentally affecting the spinning process and materials which are unstable in the spinning solution in the cellulose moulded body. The above is achieved wherein the spinnable moulding mass with the incorporated functional materials is formed by two different mass streams, produced, stabilised and stored separately and firstly mixed directly before the forming module, for example, the spinning bar. The first material stream comprises a solution of cellulose in an amine oxide, preferably N-methylmorpholine-N-oxide, as is known. The second material stream is a mixture of amine oxide, preferably N-methylmorpholine-N-oxide, particular functional materials, liquid and solid additives and water. The aim is to avoid the risk of a heat build-up in the moulding or spinning solution, production of cellulose moulded bodies with adequately high degree of polymerisation and excellent functional properties and to restrict the decomposition of the amine oxide. The interactions between cellulose and additive are also to be restricted and a storage life for the additive suspension guaranteed.
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