Abstract
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.
Kurzfassung
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.
References
1. Phillips, D., Duncan, M., Jenkins, E., Bevan, G., Lloyd, J. and Hoffmeister, J.: J. Soc. Dyers Colourists, 112 (10) (1996) 287–293. 10.1111/j.1478-4408.1996.tb01759.xSearch in Google Scholar
2. ISO 105-C09: Textiles – Tests for colour fastness – Part C09: Colour fastness to domestic and commercial laundering – Oxidative bleach response using a non-phosphate reference detergent incorporating a low temperature bleach activator, (2001).Search in Google Scholar
3. Luijkx, G. C. A., Hild, R., Krijnen, E. S., Lodewick, R., Rechenbach, T., Reinhardt, G. and Phillips, D. A. S.: Tenside Surf. Det.41 (2004) 156–162.10.3139/113.100218Search in Google Scholar
4. Reinhardt, G. and Ulshöfer, H.: Tenside Surf. Det.43 (2006) 12–19.10.3139/113.100295Search in Google Scholar
5. Reinhardt, G.: Household and Personal Care Today (2003) 65–70.Search in Google Scholar
6. EN 60456: Clothes washing machines for household use – Methods for measuring the performance, (1999), and its amendments A11 (2001), A12 (2001) and A13 (2003).Search in Google Scholar
7. ISO105-A06 Textiles – Tests for colour fastness – Part A06: Instrumental determination of 1/1 standard depth of colourSearch in Google Scholar
8. Ulshöfer, H. and Sutter, C.: unpublished studies (2003).Search in Google Scholar
9. ISO 105-J03: Textiles – Tests for colour fastness – Part J03: Calculation of colour differences, (1995) and corrigendum ISO 105-J03 Cor 1:1996.Search in Google Scholar
10. ISO 105-A05: Textiles – Tests for colour fastness – Part A05: Instrumental assessment of change in colour for determination of grey scale rating, (1996) and corrigendum ISO 105-A05 Cor 1:1997.Search in Google Scholar
11. Luijkx, G. C. A., Hild, R., Krijnen, E. S., Lodewick, R., Rechenbach, T. and Reinhardt, G.: Tenside Surf. Det.41 (2004) 164–168.10.3139/113.100219Search in Google Scholar
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