직/편성물 염색

Aftertreatment of Polyester Fabric Dyed with Temporaily Solubilised Disperse Dyes

  • 출판일2001.02
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 267
High pressure liquid chromatography established the effects of sodium sulfite and sodium bisulfite washing agents on the conversion of unexhausted disperse dyes derived from aminopheyl-4-(B-sulfatoethylsulfone). Dyeing on polyester fibers exhausted the dyes primarily in the vinylsulfone form with some hydroxyethylsulfone analogs. The sulfite anion attacked the vinylsulfone dye residue. An addition reaction converted the dye into a soluble derivative that had little affinity for the polyester fibers. The reaction consumed the sulfite anion, leaving a mild alkaline dyebath. Aftertreatment with sodium sulfite was effective and resulted in washfastness and rubfastness analogous to that resulting from reduction clearing. 8 refs.
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