Developed dye

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A class of dyes that change color when treated with a developing solution. A substrate is dyed in a neutral solution, then diazotized using a Sodium nitrite in a weak acid solution. The dye fibers are then developed using one of the following developers: beta naphthol, Phenylenediamine, Phenol, Phenylmethylpyrazolone, or Resorcinol. Often direct dyes are developed to improve brightness and lightfastness. Developed dyes are also used on suede leathers to prevent crocking (Roberts and Etherington 1982).

Resources and Citations

  • Hoechst Celanese Corporation, Dictionary of Fiber & Textile Technology (older version called Man-made Fiber and Textile Dictionary, 1965), Hoechst Celanese Corporation, Charlotte NC, 1990
  • Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982

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