IFJ_03-2020_PPE_NCState Ken Norberg May 27, 2020 22 Views The Nonwovens Institute (NWI) at North Carolina State University has developed a new bicomponent spunbond polypropylene said to compete with meltblown fabrics. Photo courtesy of NWI The Nonwovens Institute (NWI) at North Carolina State University has developed a new bicomponent spunbond polypropylene said to compete with meltblown fabrics. Photo courtesy of NWI