Disclosed is a new type of electric splint structure, which includes two hinged splint parts and a tail end part; the splint part includes a housing and a heating-plate component mounted on the inner side of the housing, an air duct is arranged inside the housing, opposite air outlet holes and bristle-planting comb-teeth are respectively provided on one side edge of the two opposite housings, and the air outlet holes communicate with the air duct and are inclined toward the outside; the tail end part includes a fan component. The air outlet holes inclined toward the outside are provided on the side of the heating-plate component.

The present invention provides a heating apparatus for heating a load. The heating apparatus comprises a heater having a heating element for receiving electrical power and for converting the electrical power into heat to heat a heating surface of the heater. The heating apparatus also comprises a temperature sensor for sensing and outputting a measurement of the temperature of the heating element, a power actuator for providing the electrical power to the heating element of the heater, a power sensor for sensing and outputting a measurement of the power provided to the heating element by the power actuator, and control circuitry for controlling the power actuator to control the power delivered by the power actuator to the heating element. The control circuitry is configured to receive the temperature measurement from the temperature sensor, receive the power measurement from the power sensor, combine the temperature measurement and the power measurement, and control the power actuator in dependence upon the combined temperature measurement and power measurement. This ensures that the temperature of the heating surface is constant throughout a period when the load is applied.

There is described a method for colouring hair, said method comprising treating hair with a composition comprising dihydroxyacetone (DHA), in free form or in salt form; optionally drying the hair; and heating the treated hair, including the applied DHA composition, to a temperature of from about 100° C. to about 250° C.

Electric hair straightener (100) comprising a straightening iron (10) formed by two articulated arms (11, 12) provided with heating plates (111, 121), a water reservoir (20) separate from the straightening iron and a hose (30) connecting said reservoir to said iron for conveying the water before it is transformed into steam by a steam generator (151), the arms being capable of moving relative to one another between an open position allowing a lock of hair to be placed between the heating plates and a closed position allowing the previously placed lock of hair to be clamped by said plates, the straightening iron further including an activatable vibrator (16) to vibrate the heating plates, and the water reservoir (20) further comprising a removable cosmetic product refill (21), said straightener thus allowing a hair care product to be applied during the straightening process.

A beauty product device is disclosed which includes a variety of sensors for sensing the way in which a user is operating the device. The sensor data can be processed and compared with pre-stored data representative of a desired style and feedback messages generated and provided back to the user to help them achieve the style they wish to achieve based on the comparison.

A hair styling device includes a first and a second arm each having first and second gripping sections mounted to be articulated between the open and closed configurations; a reservoir mounted on the first arm and designed to contain a fluid to be vaporised; a vaporisation device mounted on the first arm and designed to produce steam; and a fluid conveyor element secured to the reservoir and designed to convey the fluid contained in the reservoir towards the vaporisation device. The reservoir extends at least partly in the first gripping section and is mounted such that it can move between a vaporisation position in which the vaporisation device is configured to vaporise the fluid conveyed by said fluid conveyor element, and a resting position.

A refill for a device for treating hair, including: a reservoir of elongate shape along a longitudinal axis, defining a cavity containing a cosmetic composition to be applied to the hair, the reservoir having a flank for mounting the refill on the device, extending parallel to the longitudinal axis of the reservoir, a porous application member for applying the cosmetic composition to the hair, of elongate shape and extending parallel to the longitudinal axis of the reservoir. The application member being fitted in a slot-shaped opening in the reservoir that leads into the cavity, this opening being offset laterally toward the mounting flank, relative to a median plane of the cavity that contains the longitudinal axis of the reservoir and is parallel to the mounting flank.

In one aspect the invention is arranged to provide a hair treatment apparatus adapted to reduce the temperature of hair. This apparatus includes at least one thermal energy storage core arranged to draw heat out of hair wherein said at least one thermal energy storage core is arranged to cool hair to a temperature below 0° Celsius.

Hairstyling devices include one or more heat transmissive elements having a coating disposed thereon, the coating having ceramic and lava rock incorporated therein. The use of lava rock-containing coatings as described herein results in hairstyling devices with heat transmissive elements exhibiting enhanced heat retention, faster heat recovery, and increased ion emission. Furthermore, lava rock-containing coatings have been found more durable than equivalent heat transmissive element coatings that do not have lava rock incorporated therein.

The invention relates to a cosmetic process for treating keratin fibers, preferably the hair, comprising at least the steps consisting in: a) applying to said keratin fibers a composition containing at least one substance chosen from fatty substances, non-silicone polymers and surfactants, b) applying a mechanical tension to said keratin fibers, and c) exposing said keratin fibers under mechanical tension to microwaves, at a pressure ranging from 50,000 to 250,000 Pa, in the presence of at least one solvent in vapor form on contact with the keratin fibers and without there being complete drying of the keratin fibers throughout the entire exposure to the microwaves, the solvent(s) in vapor form being entirely generated by evaporating at least one compound present, before emission of the microwaves, on contact with the keratin fibers, step a) taking place prior to step c).