an investigation of domestic laundry in europe - habits ... - SIFO

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64An investigation into the domestic laundry habits in Europecaution. Results are shown as an average of the alkalinity measured. Low alkalinityis a measure of high rinse efficiency.We find that the liquid detergents have high rinse efficiency compared to theother types of detergents. This is valuable information for people with allergicreactions from residual detergent after wash.Greece (and Spain for compact and liquid detergent) has high rinse efficiencyfor all detergents tested. The Netherlands has quite low rinse efficiency comparedto the Greek detergents, except for the liquid detergent.Temperature does not seem to be an important parameter for rinse efficiency.Table 3-14 Average rinse efficiency – high and lowTemp. Highest LowestCompacts (A) 30 °C Greece 0.10 (± 0.05) The Netherlands 0.52 (± 0.18)40 °C Greece 0.09 (± 0.04) The Netherlands 0.50 (± 0.12)Traditional (B) 30 °C Greece 0.18 (± 0.08) Spain 0.54 (± 0.15)40 °C Greece 0.22 (± 0.03) Spain 1.72 (± 0.60)Liquid 30 °C Spain 13 -0.05 14 (± 0.32) The Netherlands 0.05 (± 0.03)– Colour (C) 40 °C Norway 0.07 (± 0.07) The Netherlands 0.15 (± 0.04)Spain 15 0.15 (± 0.83)Compacts 30 °C Spain 0.17 (± 0.07) The Netherlands 0.42 (± 0.17)– Colour (D) 40 °C Spain 0.27 (± 0.13) The Netherlands 0.55 (± 0.14)In this evaluation we have focused on the compacts and traditional detergentsfor white textiles and the liquid detergent for coloured textiles. The results forthe compacts for coloured textiles are not much different than the results forthe compacts for white textiles.Compacts (type A)The detergent from Greece gives the lowest level of alkalinity left in the baseload after both wash programmes. A significant difference is found between13 Tests at 40 °C with the Spanish liquid detergent (type C) were interrupted for the same reasonas for the 30 °C wash programme. Only two cycles could be measured.14 A negative value is reported when the measured alkalinity of the water supply becomeshigher than the measured alkalinity of the detergent solution. We believe that the detergent iscompletely rinsed out of the base load in such cases.15 Tests at 40 °C with the Spanish liquid detergent (type C) were interrupted for the same reasonas for the 30 °C wash programme. Only two cycles could be measured.
Assessment of the functional performance of European laundry processes and detergents 65the rinse efficiency for the Greek detergent, G-A, and the Dutch detergent,NL-A, at both wash temperatures.0,600,500,520,50Alkalinity0,400,300,200,100,100,090,300,340,200,130,00G-A NL-A N-A E-ACelsius 30 Celsius 40Figure 3-4 Average rinse efficiency of type A – Compacts for white textilesTraditional detergents (type B)The detergent from Greece gives the lowest level of alkalinity left in the baseload after both wash programmes. This detergent has significantly higherrinse efficiency than the other detergents at both wash temperatures.As figure 3-5 shows, the Spanish detergent, E-B, gives a very high level ofalkalinity at 40 °C. We cannot explain this unexpected difference in alkalinitybetween the two wash programmes for this.2,001,601,72Alkalinity1,200,800,400,180,220,340,50 0,540,400,540,00G-B NL-B N-B E-BCelsius 30 Celsius 40Figure 3-5 Average rinse efficiency of type B – traditional detergents for white textilesIf we compare these values with values from the compacts for white textiles,we find that traditional detergents tend to give lower rinse efficiency than the
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Appendix ASurvey of domestic laundr
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Appendix A 1199. Which temperature
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Appendix A 1211.Working, in private
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Appendix BDeclaration detergentsGre
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Appendix B 125NorwayA) Omo Ultra Ta
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Appendix CSettings of the 15°C Was
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Appendix DSettings of the 30°C Was
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