직/편성물 염색

dyeing of alkali swollen and alkali swollen solvent exchanged cotton with a reactive dye

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 315
in the reported experiments, an attempt was made to dye alkali swollen and alkali swollen solvent exchanged cotton with a c. i reactive blue 5 dye from the mixture of dimethylformamide and various nonpolar solvents. at a suitable dimethylformamide-nonpolar solvent ratio and alkali concentration used for cotton pre-swelling, it was possible to get 100 dye bath exhaustion and dye fixation as high as 77. the dyeability of cotton was dependent on the dielectric constant of the nonpolar solvent and its absence in the internal liquid phase closely associated with the fiber as demonstrated by the imbibition values. 11 refs