NOVELTY - The multi-nozzle/nozzle-free electrospinning process comprises applying a high voltage between a spinneret and a collector or between a separate electrode and a collector, feeding a stream of a polymer solution comprising a polymer and a solvent to a multi-nozzle device or a nozzle free device and to the spinneret, exiting the polymeric solution from the spinneret through the spinning nozzles, transforming the polymer solution under the influence of the high voltage into charged jet streams, and depositing the jet streams on a substrate or taken up by a collector.    USE - The multi-nozzle or nozzle-free electrospinning process is useful for the preparation of polyamide nanofibers or nano-web, which are useful for: molecular separations; filtration including gas/gas filtration, hot gas filtration, particle filtration, liquid filtration such as micro filtration, ultra filtration, nano filtration, reverse osmosis, waste water purification and oil and fuel filtration; electrochemical applications including electro-dialysis, electro-deionization, batteries and fuel cells; controlled release applications including pharmaceutical and nutraceutical components; pertraction, pervaporation and contactor applications; immobilization of enzymes, humidifiers and drug delivery; and (industrial) wipes, surgical gowns and drapes, wound dressing, tissue engineering, protective clothing, catalyst supports, and coatings (all claimed).    ADVANTAGE - The electrospinning process ensures rapid and large scale preparation of polyamide nanofibers with high stability, reduced fiber size, increased throughput and enhanced mechanical, electrical, thermal, magnetical, optical and chemical properties.    DETAILED DESCRIPTION - The multi-nozzle/nozzle-free electrospinning process comprises applying a high voltage between a spinneret and a collector or between a separate electrode and a collector, feeding a stream of a polymer solution comprising a polymer and a solvent to a multi-nozzle device or a nozzle free device and to the spinneret, exiting the polymeric solution from the spinneret through the spinning nozzles, transforming the polymer solution under the influence of the high voltage into charged jet streams, depositing the jet streams on a substrate or taken up by a collector, and solidifying the polymer in the jet streams for forming nanofibers. The polymer comprises: a semi-crystalline polyamide having a carbon/nitrogen (C/N) ratio of 2-5 and a weight average molecular weight (Mw) of 2000-30000, where the semi-crystalline polyamide is present in an amount of 50 wt.% relative to the polymer; a second polyamide having a C/N ratio of more than 5.5 and/or an Mw of more than 35000; and/or a water soluble polymer. The solution comprises an additive. The spinneret comprises a series of spinning nozzles. The process further comprises a washing step, a drying step, a curing step, and/or a post condensation step. An INDEPENDENT CLAIM is included for a nanofibers or nano-web.