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Testing Robustness and Compatibility of Colour Damaging Washing Tests

Part II: Colour Damage Profiles of Bleach Systems on a New Reactive Dyes Set

Überprüfung der Aussagekraft und Kompatibilität von Farbschädigungstests
Teil II: Farbschädigungsprofile von Bleichsystemen an einem neuen Reaktivfarbstoff Set
  • G. Reinhardt and H. Ulshöfer


Uncertainty concerning the colour damaging effect of new bleach systems often is a major hurdle for their market introduction. In this study we have therefore examined the colour damaging effect of various bleach activators, peracids and catalysts using a newly developed Reactive Dye Set. The trials were carried out according to ISO 105-C09 (diagnostic single wash test) and a similar test as well as the recently developed colour damage profile test (20 wash cycles). The results show that new bleach systems can differ significantly from conventional activators in their reactivity and selectivity towards the individual dyeings. Each system produces a characteristic damage profile. ISO 105-C09 appears not to be suitable for prediction of the effect of new bleach systems such as perimidic acids as well as all bleach catalysts.


Häufig stehen Unsicherheiten über farbschädigende Wirkung von Bleichsystemen ihrer Markteinführung entgegen. In dieser Arbeit wird deshalb die farbschädigende Wirkung verschiedener Bleichaktivatoren, Persäuren und Katalysatoren an einem neu entwickelten Reactive Dye Set untersucht. Die Versuche wurden sowohl gemäß oder in Anlehnung an ISO 105-C09 (diagnostic single wash test) als auch nach dem kürzlich entwickelten CDP Tests (20fach Wäsche) durchgeführt. Die Ergebnisse belegen, dass sich neue Bleichsysteme in Reaktivität und Selektivität gegen über einzelnen Färbungen von herkömmlichen Aktivatoren signifikant unterscheiden können. Jedes System erzeugt ein charakteristisches Schädigungsprofil. ISO 105-C09 scheint nicht geeignet, die Wirkung neuer Bleichsysteme, wie Perimidsäuren und Bleichkatalysatoren vorherzusagen.

Dr. G. Reinhardt, Clariant GmbH, R&D Detergents, IPH, D 562, 65926 Frankfurt am Main, Germany, Tel.: +49(0)6930516917, Fax: +49(0)6918435. E-mail:

Dr. Gerd Reinhardt, born in Germany in 1953, received a Ph.D. in Organic Chemistry from the University of Cologne in 1982. In 1984 he joined the Surfactants and Auxiliaries Division of Hoechst AG (since 1997 part of Clariant GmbH) in Frankfurt, Germany. In his current position as R&D Manager, Dr. Reinhardt is responsible for Clariant's bleach development group.

Hermann Ulshöfer, born in Germany in 1943, obtained his engineer degree in textile chemistry in 1965 at the Research Institute for Textile Technology at Hohenstein. After that he started by working on a research program on lipid chemistry at the University of Minnesota. In 1967 he joined the Textile Dyestuff Department of Sandoz Ltd (since 1995 Clariant (Switzerland) Ltd). Until his retirement end of 2003 he was manager of the screening and fastness testing group. Since 2004 he works as consultant.


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Received: 2005-08-16
Published Online: 2013-04-05
Published in Print: 2006-03-01

© 2006, Carl Hanser Publisher, Munich

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