cold permanent wave

...During the Second Sino-Japanese War and the Pacific War, due to the prohibition of using enemy words, the word came to be called "denka" (electric hair), and a campaign of banishment and self-restraint was carried out, and many machines were donated. At that time, America was entering the era of cold permanent waves, which were introduced by the families of occupying troops after the war, and by around 1948, domestically produced chemical solutions were commercialized and spread widely in the beauty and barber industry. It is said that cold perms began in 1936 when British chemist J. Speakman, after studying the molecular structure of wool, perfected the principle of cold waves, which cut the side chains of hair keratinocytes. ...

*Some of the terminology that refers to "cold permanent wave" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…日中戦争から太平洋戦争にかけては敵性語禁止のため〈電髪〉と呼ばれるようになり，追放･自粛運動が行われ，機械も多く供出された。当時アメリカではコールド･パーマネント･ウェーブcold permanent waveの時代に入っており，終戦とともに進駐軍家族によって紹介され，48年ころには国産の薬液が製品化されて，美容･理容業界に大きく広がっていった。　コールド･パーマはイギリスの化学者J.スピークマンが1936年に羊毛の分子構造の研究から，頭髪のケラチン細胞の側鎖を切るコールド･ウェーブの原理を完成したことに始まるといわれる。…

※「cold permanent wave」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