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.

A hand held appliance including a fluid flow path extending between a fluid inlet and a fluid outlet and a ceramic heater within the fluid flow path wherein the fluid flow path is non-linear and the heater is non-linear. The appliance may include a housing wherein the housing houses the heater and encloses the fluid flow path, and wherein the housing is curved. The heater may be curved. The housing may include a straight section and a curved section and the heater is housed within the curved section. The heater may include at least one heating element comprising a flat ceramic plate and a conductive track. The heating element may be arcuate. The heating element may have a constant curvature.

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 hair styling device, and in particular to a hair straightener. The hair styling device (10; 210) has a first arm (12; 212) and a second arm (14; 214), the first and second arms being moveable relative to one another between a closed or operative condition and an open or inoperative condition. The first member (12; 212) has a first heating panel (16; 116; 216) and the second member (14; 214) has a second heating panel (18; 118; 218). The heating panels (16, 18; 116, 118; 216, 218) are corrugated to increase the length of the path the hair must take between the heating panels. The first and second heating panels are spaced apart in the operative condition so as not to press or clamp the hair therebetween. The first member (12; 212) also has a first pressing panel (26; 126; 226) and the second member (14; 214) also has a second pressing panel (28; 128; 228), the first and second pressing panels in their operative position engaging so that the hair is pressed between the pressing panels.

A hair iron includes two longitudinally extending arms each having a ceramic heater. Users place hair between the heaters during use. A controller coordinates timing and voltage conditions to heat the heaters to avoid light flicker and power harmonics. Thermistors provide current heater temperatures of the heaters and a controller calculates a desired heating power. The heating power includes application to the heaters of various half-cycles of AC power from an external AC line voltage.

A hair iron includes two longitudinally extending arms each having a ceramic heater. Users place hair between the heaters during use. A controller coordinates heating conditions of the heaters. If a line voltage supplied to the hair iron is a high voltage, the controller is configured to alternate heating between the heaters whereby only heating of one heater occurs at one time. To reduce flicker and harmonics, the controller supplies heating current so that one heater remains off for consecutive half-cycles of alternating current while the other heater is powered on variously. The controller then switches the heating. The hair iron further includes a line voltage detector to detect whether a line voltage supplied through a cord to the hair iron is either low voltage or high voltage. During such time, the controller limits heating power to the two heaters.

A product line of battery-powered, cordless blow-dryers, curling irons, flat-irons, and hair-clippers to eliminate the frustration, limitations, and accidental mishaps associated with easily tangled power cords, while providing premium-quality styling tools featuring removable batteries which are easily charged in the provided charging base to provide the utmost in convenience to both professional stylist's and barbers, and consumer households.

Methods and apparatus include a hair iron having a controller and a heater between first and second arms movable relative to each other between open and closed positions. The controller connects or not the heater to a line voltage to heat hair when placed between the arms during use. A proportional-integral-derivative (PID) controller communicates with a thermistor measuring a current temperature of the heater and makes requests of the controller to operate the heater at a setpoint temperature. In various embodiments, the heater heats to full power during warm-up and operates thereafter at lower temperatures based on a reading of the line voltage and a time to adjust the current temperature to the desired setpoint temperature.

Disclosed is a magnetic elastic hairdressing massage comb, which includes a circle of outer non-electric conductive adiabatic gears with a certain interval space arranged around a working face of the shell and a heat conductive comb body layer arranged at the inner of the non-electric conductive adiabatic gear circle, on which several lattice arrayed magnetic elastic moving gears are set. Said magnetic elastic moving gears are hollow heat conductive gears. A heat resistant magnetic body X is fixed in the bottom of the hollow heat conductive gear body. On the upside of X, a heat resistant magnetic body Y is arranged with X with like poles facing each other. The top of Y is connected to a small high-temperature resistant adiabatic column, which stretches out of the opening at the top of said hollow heat guide gears.

In a hair straightener comprising an elongate straightener arm (A) having a heating plate (H), the invention provides a pivot mechanism (2) for supporting the heating plate (H) in a pivotable manner around a pivot axis (P1) in a longitudinal direction of the elongate straightener arm (A). Preferably, the pivot axis (P1) is at a heating surface of the heating plate (H), or between a first heating plate of a first straightener arm and a second heating plate of a second straightener arm when the first straightener arm and the second straightener arm are in a relative position arranged for clamping hair. Advantageously, a bias mechanism (4) (e.g. a resilient member like some spring) biases the heating plate (H) to a neutral position.