| 摘要 |
The invention concerns a superabsorbent powder that consists of polymeric particles comprising a core that swells in the presence of water and a surficially postcrosslinked shell and which is a screened fraction of such polymeric particles that have not been comminuted after the surficial postcrosslinking of their shell. This superabsorbent powder is particularly useful for finishing textile fabrics composed of very fine fibres or filaments less than 10 mum in diameter, in particular for finishing hygiene products. It further proposes the use of a nanofibre web finished with superabsorbents for absorbing and retaining hydrophilic fluids, for uptake and/or retarded delivery of at least one of the following fluids: body fluids, perspiration from humans and other animals, water, including cooling water, condensation and water vapour, chemical, including agrochemicals and pesticides, medicaments, biocides, germicides and fungicides, diagnosticals, fire protection and fire extinguishing agents, cleaning agents, hydraulic fluids, heating and cooling fluids, wastewaters, including radioactively contaminated fluids, perfumeries.
|
