Colour fastness

Colour fastness is a term used in dyeing of textile materials means resistance of colour to fading, i.e it refers to the notion of an object having colour that retains its original hue without fading or running. The term is usually used in the context of clothes. The first known use of the word colorfast was in 1916.[1] In general, clothing should be tested for colourfastness before one uses bleach, or another type of strong cleaning product.[2] Light fastness, wash fastness, and rub fastness are the main ones that standardized. The light fastness of textile dye is categorized from one to eight and the wash fastness from one to five. The higher the number the better fastness is obtained.[3]

References

  1. ^ "colorfast". http://www.merriam-webster.com/dictionary/colorfast. Retrieved December 01, 2011. 
  2. ^ "Colorfastness". http://housekeeping.about.com/od/laundry/g/def_colorfast.htm. Retrieved December 01, 2011. 
  3. ^ http://www.uk.sgs.com/colour-fastness-test.htm?selen=27&serviceid=10135168&lobid=16398
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