Patent ID: 8414821
Filing Date: 2013-04-09
Classification: B01D,D01D,D01F,D04H,Y10T

Abstract:
1. A method for electrostatic spinning of thermoplastic polymers for obtaining nanofibers and microfibers, comprising: providing a carrier fleece medium; forming a solution by dissolving said thermoplastic polymer in a corresponding solvent; adding a thermoplastic elastomer (TPE) to said solution such that said solution has a desired TPE concentration; introducing said solution into an electric field; spinning nanofibers and microfibers under the effect of said electric field; forming elastic TPE graft type elastic roundish domains during said spinning step, said TPE graft type elastic roundish domains integrated into said spun nanofibers and microfibers; and integrating said TPE elastic domains during said spinning step into a fiber web of said spun nanofibers and microfibers, said TPE domains elastically connecting said spun nanofibers and microfibers; depositing a fibrous coating of said TPE integrated nanofibers and microfibers onto said carrier fleece medium; wherein in said adding step, ratio between said TPE domains and said spun nanofibers and microfibers is adjusted by varying said desired TPE concentration.