Process for permanently shaping hair

US3964499A · kind A · utility

Assignee

• Wella GmbH · DE

Inventors

• Theodor Wajaroff · Darmstadt, DE
• Eugen Konrad · Darmstadt, DE
• Dieter Hoch · Pfungstadt, DE

Key dates

• Filing date: Oct 15, 1974
• Grant date: Jun 22, 1976
• Expiry date: Oct 15, 1994

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K8/8182
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Process for permanently waving or straightening human hair comprising the steps of pretreating the hair with a detergent solution containing an alkali metal- or ammonium sulfite, saturating the hair with an alkaline solution of a mercaptocarboxylic acid salt, winding the hair up on perforated hollow curlers or rollers having a diameter of 10-24 mm, rinsing the hair with water and removing the excess water from the hair, in separate steps or in a combined step treating the hair with peroxide and with a polymerizate to fix and set the same respectively, drying the hair, unwinding the hair from the curlers and combing the hair in the conventional manner to provide the desired hair fashion.