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Hard water contains high levels of these cations. Anionic surfactants are the most common surfactants in laundry detergents. emulsifying oil and clay soils, fabric softener residue, and are high sudsing. ether sulfates such as sodium lauryl ether sulfate (SLES). (charged particles) in hard water.
Surfectants. Possibly the most important ingredient in your laundry detergent, surfectants improve water absorbtion, break down dirt particles and suspend particles to be washed away in the rinse.