| 摘要 |
Fine fiber spunbonded fleece produced by heating the polymer as a raw material in an extruder, and pressing under high pressure using a spinneret, comprises a polymer, preferably polypropylene. The material of the fibers of the fleece comprises 10 wt.% zinc salt of ricinoleic acid. Independent claims are also included for: (1) a multi-layer composite material comprising at least one carrier layer and at least one fleece layer, where at least one layer of the multilayer composite material is made of the spunbonded fleece; (2) vacuum cleaner filter bags made of the multi-layer composite material with many filter layers, comprising an enclosed connection region, where at least one filter layer is made of the spunbonded fleece; (3) hygiene articles, preferably diaper, bandage, tampon, or fleece inserts comprising at least one layer made of fine-fiber spunbonded fleece; (4) a filter, preferably a multi-layer filter, where the filter or at least one layer of the multilayer filter is made of the spunbonded fleece; and (5) producing the spunbonded fleece, comprising melting the polymer as the raw material in the extruder, and pressing under high pressure using the spinneret, where the raw material is mixed with 1-50%, preferably 10-20% plastic additive containing 10-20%, preferably 15% zinc salt of ricinoleic acid, prior to extrusion in an extruder. |
