The following article was sourced from a Wikipedia page at the following address: http://en.wikipedia.org/wiki/Hairbrush
A hairbrush is a stick brush with rigid or soft bristles used in hair care for smoothing, styling, and detangling human hair, or for grooming an animal's fur. It can also be used for styling with a curling iron or blowdryer.
UNITED STATES HISTORY
The earliest U.S. patent for a modern hairbrush was by Hugh Rock in 1854. A brush with elastic wire teeth along with natural bristles, was patented by Samuel Firey in 1870 as U.S. Patent 106,680. In 1898, Lyda A. Newman invented an "Improved Hairbrush," which allowed for easily cleaning and had bristles separated wide enough to allow for easy combing. She was awarded U.S. Patent 614,335.
A brush is typically used on long hair while a comb is normally used on shorter hair; however, both may be used for either. A flat brush is normally used for detangling hair, for example after sleep or showering. A round brush can be used for styling and curling hair, especially by a professional stylist, often with a blowdryer. A paddle brush is used to straighten hair, flatten long hair, and tame fly-aways. A hairbrush can be used to remove loose hairs, and increase circulation to the scalp.
Special brushes are made for cats and dogs. Two different brushes can be made specifically for ether short haired pets, or long haired pets. For an equine's tougher hair, a curry-comb is used.
TYPES OF HAIRBRUSHES
Examples of brushes used for different purposes:
Material of hairbrushes
Common materials used for bristles
To read more about hair brushes, please click on the following link: http://en.wikipedia.org/wiki/Hairbrush