Modified soap - modified soap

Japanese: 改質セッケン - かいしつせっけん
Modified soap - modified soap

… Soap has some drawbacks, such as the production of insoluble metal soaps (soap scum) in hard water, which impairs the feel of the finished wash, and its low solubility in cold water means that it cannot provide sufficient cleaning effects. Modified soaps are used that contain calcium soap dispersants to prevent the formation of soap scum, and that have surfactants added to improve their solubility in water. Soaps that contain more than 3% of surfactants as auxiliary agents are classified as composite soaps under the Household Products Quality Labeling Act. …

*Some of the terminology that refers to "modified soap" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

… セッケンには,硬水によって水に不溶性の金属セッケン(セッケンかす)を生じて洗い上がりの触感を害したり,冷水では溶解性が低く,十分な洗浄効果を発揮できないなどの欠点がある。セッケンかすの生成を防止するためにカルシウムセッケン分散剤を配合したり,水への溶解性を向上させるために界面活性剤を添加した改質セッケンが用いられている。このような助剤としての界面活性剤含量が3%を超えたものは家庭用品品質表示法では複合セッケンとして区別されている。…

※「改質セッケン」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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