A Protocol to Examine the Colour Damage Profile of Bleach Containing Detergents

Abstract

In the development of new and improved bleach systems for detergents there is a need for a reliable and generally accepted protocol to test colour and fibre damage. We here describe a protocol to screen detergents on colour damage/fading under European wash conditions, using a recently developed set of dyed fabrics.The test protocol has been evaluated in an inter-laboratory test and was found to be robust in the sense that it gave similar results in different laboratories. Hence the protocol described is recommended for testing the colour damage/fading properties of oxidative bleach containing detergents for the European market.

Detergents containing cationic hydroxyethyl cellulose: Benefits on dark garments leveraging a consumer relevant wash method

“…In addition to hue, both chroma and lightness are needed to describe color. Traditionally, dye fading in washed fabrics has been quantified using the ΔE CIELAB (Luijkx, Hild, et al, 2004;Luijkx, Hildz, et al, 2004;Rohwer et al, 2008;Shanda, 2007) of the washed fabrics relative to the unwashed fabrics (reference). Several metrics have been used to assess color differences in textiles like ΔE2000 or ΔEcmc (2:1) without clear general guidance about which one will be superior (Aspland, 2004) to best capture human perception for washed fabrics.…”