09/07/2012 1 Finishes to Improve Colour Fastness By Dr. Tanveer Hussain Definitions • Colour Fastness – The resistance of a material: • to change in any of its colour characteristics, • to the transfer of its colourants to adjacent materials or both • Fading – Means that the colour changes and lightens • Bleeding – The transfer of colour to a secondary, accompanying fibre material • Soiling or Staining – Coming of a colour on to accompanying material 09/07/2012 Dr. Tanveer Hussain 2