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Breathable Waterproof Finish of PET Fabrics via Microporous UV Coating of Polyurethane Diacrylate

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2010, 22(3), pp.239-245
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering

Jang, Jin-Ho 1 구광회 1

1금오공과대학교

Accredited

ABSTRACT

Abstract― Breathable waterproof PET fabrics were prepared by the UV coating of UV-curable polyurethaneacrylate(PUA)formulation mixed with polyethyleneglycol(PEG) as a water soluble pore former. The dispersed PEG in the UV-cured coating was extracted by warm water, which can generate individual circular pores uniformly distributed all over the coating instead of pore channels. Accordingly the moisture permeability of the microporously coated fabrics increased substantially with increasing PEG addition without significant reduction of hydrostatic pressure. Also the silicone diacrylate addition in the formulation was beneficial in increasing the hydrostatic pressure. The UV-based microporous coating can be an alternative to conventional thermal curing of solventborne polyurethane coating owing to the enhanced environment friendliness and energy saving.

Citation status

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