摘要 |
A hair styler uses ultrasound at an ultrasound frequency of at least 1 MHz to get a non-chemical hair styling. Advantageously, the ultrasound frequency is between 1 and 100 MHz, preferably between 3 and 10 MHz, and more preferably between 3 and 5 MHz. The ultrasound energy is preferably applied at a power that is at least 1 W/cm2, and preferably does not exceed 10 W/cm2, such as 6 W/cm2. The invention may be used for hair curling and for hair straightening. A hair straightening method comprises temporarily straightening hair, and applying ultrasound to temporarily straightened hair to obtain straightened hair. Advantageously, ultrasound is applied during a period of between 5 seconds and 2 minutes, and preferably during about 10 seconds. |
申请人 |
KONINKLIJKE PHILIPS N.V. |
发明人 |
THUMMA, Kiran, Kumar;BOURQUIN, Yannyk, Parulian, Julian;SPOORENDONK, Wouter, Hendrik, Cornelis;PALERO, Jonathan, Alambra |