Abstract: A method for producing a sheet material is disclosed, comprising the steps of providing a carrier material solution comprising a carrier material, and depositing the carrier material onto a collector by electrospinning the carrier material solution out of a spinning device, the collector having a first electrical polarity and the spinning device having a second electrical polarity being opposite to the first polarity. The collector comprises at least one differential section, the electrical polarity of which is adjusted during deposition of the carrier material in such a manner that it either resembles the electrical polarity of the remaining sections of the collector or differs from it. The invention further relates to a device for carrying out said method and a sheet material which can be produced by said method.

Abstract: A method for producing a nanofiber-based product includes providing a carrier material solution having a carrier material, and bringing the carrier material in contact with a collector by electrospinning. The carrier material essentially consists of a polymer being—at least after having contacted the collector—embedded in a polymer, which polymer is formed by a crosslinker of the general formula (I) wherein R1 is a single bond between the adjacent carbon atoms, or a carbohydrate chain having 1 to 10 carbon atoms and optionally bearing a hydroxy group, and wherein R2, R3, R4 and R5 are independently from each other a hydrogen; a carbohydrate chain having 1 to 10 carbon atoms and optionally bearing a hydroxy group; a hydroxy group; or a sulfhydryl group; with the provision that the compound bears at least two hydroxy groups, or two sulfhydryl groups, or one hydroxy group and one sulfhydryl group.