Abstract: A combination of a hairbrush having a brush head with a concave central portion and captive ends, along with a thermal coating that includes a desired amount of at least one of aluminum, silver, and/or diamond dust in the coating, results in a hairbrush that can be raised to approximately 200° F. in a short timeframe. A conventional hairbrush without either the coating or the captive ends was unable to achieve the desired temperature.

Abstract: A combination of a hairbrush having a brush head with a concave central portion and captive ends, along with a thermal coating that includes a desired amount of at least one of aluminum, silver, and/or diamond dust in the coating, results in a hairbrush that can be raised to approximately 200° F. in a short timeframe. A conventional hairbrush without either the coating or the captive ends was unable to achieve the desired temperature.

Abstract: An ergonomic tangle free hair brush having an integrally attached handle and brush head. The handle is shaped for comfort when being used by a hairstylist. It is generally formed as a surface of revolution and is coated with a soft covering having good gripping characteristics. The brush head is spool shaped to be of a concave surface or revolution having enlarged ends. The surface of hair engaging portion of the brush head contains many bristle sites. These sites may be formed to yield a spiral shaped row of bristles. The adjacent rows of bristles are off set from the previous row to provide maximum contact with the hair being brushed. Each site has two different types of bristles emanating therefrom. The surface of the concave brush surface may be coated with a colour changing thermochromic material. The end of the brush head remote from the handle is flat, producing a natural resting surface for the is brush when not in use.

Abstract: A hairbrush, the surface of which changes colour with temperature, is used to improve the set of human hair during a grooming process. The bristles of the brush may be of a colour temperature dependent nature as well as the surface on which the bristles are mounted or protrude.