1. Textile Protection and Comfort Center, North Carolina State Univ., 1020 Main Campus Drive, Campus Box 8301, Raleigh, NC 27606 US
2. Textile Protection and Comfort Center, North Carolina State Univ., 1020 Main Campus Drive, Campus Box 8301, Raleigh, NC 27606 US (Corresponding author), e-mail: eadenhar@ncsu.edu