Waterborne PU Impregnation and Color Fastness of Ultramicrofiber PET Knitted Fabric

폴리에스테르 초극세 편직물의 수분산 PU 함침가공 및 염색견뢰도

  • 정동석 (부산대학교 섬유공학과) ;
  • 천태일 (동의대학교 생활과학대학 의류학과) ;
  • 이문철 (부산대학교 섬유공학과)
  • Published : 2003.06.01

Abstract

Ultramicrofiber(UMF) PET knitted fabric and regular PET plain woven fabric as reference sample were impregnated with waterborne polyurethane(PU) in a two-step process with dyeing/PU treatment and PU treatment/dyeing to investigate the effect of the treatment sequence. The waterborne PU impregnated fabrics were dyed with two kinds of vat and disperse dyes to investigate the dyeing properties and the dyeing fastnesses. In vat dyeing the rank of color strength(K/S) was in order of dyeing/PU impregnation > dyeing only > PU impregnation/dyeing, whereas in case of disperse dyeing, the order was dyeing/PU impregnation > PU impregnation/dyeing >dyeing only. Wash fastness of vat dyeing showed a higher 2-3 grade than disperse dyeing, while rubbing and light fastnesses were not good for disperse dyes.

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