직/편성물 염색

Afterchrome dyeing of wool. II. Characterization of chromium-treated wool by secondary particle mass spectrometry

  • 출판일1997.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 286
Secondary particle mass spectrometry has been used for the first time to determine the oxidation state and depth distribution of chromium on and in wool fibres. Wool tops were dyed with 4％owf CI mordant Black 11 and aftertreated with 1％owf potassium dichromate, and wool samples treated in a blank dyebath aftertreated with 1％owf potassium dichromate, and wool samples treated in a blank dyebath aftertreated with 6％owf potassium dichromate were analysed. it could be shown that the absolute concentration of chromium in a surface layer 50nm thick became enriched with chromium by a factor of two, compared with the bulk fibre. Chromium in the hexavalent oxidation state was found to be mainly present in the outermost part of the fibres, while trivalent chromium was dominant inside the fibres.
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