Effect of Washing Conditions on Cleaning Action of Linear Alkylbenzene Sulfonate in Hard Water
作者： Keiko Gotoh , Yang Mei
DOI: 10.3139/113.110502
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摘要: Abstract The effects of water hardness on textile detergency in aqueous linear dodecylbenzene sulfonate (LAS) solutions were examined under various washing conditions. Plain-woven and towel cotton fabrics plain-woven polyester fabric soiled with a mixture carbon black/oleic acid. shake-washed the LAS solution together original unsoiled fabrics. Surface reflectance measurements revealed that soil removal redeposition decreased increased, respectively, increasing hardness. identity mineral species (calcium or magnesium ions) hard had no notable effect detergency. addition significant amounts extra did not fully compensate reduction water. Addition softening agents an alkali builder to limited detergency, but was still lower than absence salts. Moreover, high wash temperature repeated r...
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