Detergency measurement using artificially‐soiled cloths

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Abstract
Summary and Conclusions: Four types of artificially‐soiled cloths are compared in their ability to evaluate cleaning of representative detergent products. Three of these cloths are commercially available while the fourth is from a private laboratory. These are compared in their ability to rate detergents in the same order as naturally‐soiled clothes rate detergents. Sensitivity and reproducibility of the various soiled cloths in measurement of soil removal and whiteness retention are studied.Results show that artificially‐soiled cloths must be used advisedly. There is no substitute for actual performance tests of detergent products under practical conditions. At best, artificially‐soiled cloths are useful for “screening” purposes where positive test results are confirmed by practical tests.

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