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4) WATER REPELLENT EFFECTS ON N, N-ETHYLENE STEARYL URETHANE (1) Water-repellent treatments using N,N-ethylene stearyl urethane were studied. Viscose rayon fabrics treated with dispersion of N,N-ethylene stearyl urethane adding Al(N03)3 or Zn(BF4)2 or Cd (BF4)2 as catalyst, showed better water-repellency. And the fabrics had less after-change of their waterrepellency and showed better resistance to wash than the fabric treated only by a dispersion without catalyst. But the water-repellency ofdoi:10.2115/fiber.17.940 fatcat:y3ynwoxd4rekxchna6dgwmx4xu