| 摘要 |
A novel combination soap bar effective in hard water is disclosed which is comprised of a major amount of a fatty acid soap and a minor amount of an alkali metal, amine or ammonium salt of an N-2(2-hydroxyethoxy)ethyl fatty amide-H-sulfate containing about 12 to 18 carbons in the fatty amide chain. The inventive combination bar produces a stable lather when used in hard water, yet will not produce a scum or insoluble precipitates. The novel combination bar may also include other ingredients such as perfumes, deodorants, anti-microbial agents, emollients, and other surfactants and processing aids, such as fatty acids, starch, polyethylene glycol, and the like.
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