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Soil Removal Efficacy of Catholyte on polyamide 6.6 Fabric

Chinese Business Review 2012年第7期11卷 682-689页

作者： Natasha van Heerden Hester JH Steyn Robert Schall University of the Free State Bloemfontein South Africa

This study determined the detergency properties of Catholyte, an electrochemically activated medium, on polyamide 6.6 as a possible alternative to conventional laundering detergents. Undyed polyamide 6.6 was used and soiled with keltex, corn starch, mineral oil, oleic acid, morpholine, vegetable fat, butanol, solvesso 150 and water. Some soiled fabric was retained as control and not laundered. Soiled fabric was laundered at 30 ~C as well as 40 ~C with either, distilled water, Catholyte, non-phosphate detergent, a 50/50 solution of Catholyte and non-phosphate detergent, or a 50/50 solution of Catholyte and phosphate detergent. Data were analyzed descriptively by using analysis of variance （ANOVA）, which fitted the factors of treatment and temperature, as well as all two-factor interactions between these variables. A probability value of 0.05 or less indicated significance. Catholyte was effective in removing soil and reached a/XE＊ value of 59.30, but was statistically different from the phosphate detergent. Temperature did not have a significant effect on soil removal from the fabric, but the interaction with a treatment had significant effects. Treatment alone had a significant soil removal effect on the fabric. Thus, the temperature was dependent on an interaction with the treatment. The non-phosphate detergent was efficient in removing soil from the fabric and slightly more efficient than either 50/50 Catholyte solution. The 50/50 Catholyte/non-phosphate detergent solution was slightly less effective than its phosphate containing counterpart. When considering the interaction between treatment and temperature, the 50/50 Catholyte/phosphate and 50/50 Catholyte/non-phosphate solutions were more efficient at 40 ~C. Thus the interaction between the solution and higher temperature proved to be a better combination. This was also the case for the Catholyte and the non-phosphate wash liquors. Catholyte, an environmentally friendly washing agent, is an attractive alternati

关键词： electrochemical activation Catholyte soil removal polyamide 6.6

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