再生纤维素纤维包括吸收性聚合物，其中纤维在干燥状态下具有塌陷的中空横截面结构，具有处于湿润状态的中空体的横截面结构，以及在纵向方向上由隔板分割。 包括用于制备再生纤维素纤维的独立权利要求，其包括在粘胶纺丝物质中提供粘胶纺丝物质，与粘性相容的碳酸盐混合，将粘胶纺丝物质中的吸收性聚合物混合，将粘胶纺丝物质纺丝成 纺丝浴，以形成纤维，其中纺丝前的粘胶纺丝质量的成熟度小于15℃（优选10-14℃），热纺丝，纺丝中的硫酸，硫酸锌和硫酸钠的含量 浴分别为8-10％，0.3-0.5％和25-30％。

The present invention relates to a regenerated cellulose fiber, characterized by the combination of the following properties:
- Fibers having a hollow cross-sectional structure collapsed in its dry state
- Fibers having a cross-sectional structure with a hole in its wet state
- Fibers are separated longitudinally by a partition wall
- Has absorbing polymer, especially carboxymethylcellulose are combined in the fiber.
Fibers may be obtained by a method of mixing the viscose dope and the carbonate-absorbing polymer, especially carboxymethylcellulose.