Since the early 1900s the hot comb has been the key object for styling the hair of African-Americans. This invention provides to people with naturally curly hair people with a range of hair style options.
“Women and men with naturally curly, wavy or kinky hair have used hot combs for more than a century to create straight and versatile hairstyles. Over the years, the hot comb has served as an alternative for straightening hair without the use of perms and other chemical processes.” (http://www.ehow.com/about_5526769_history-hot-comb.html#ixzz2f4nA22gU,15-2013)
The hot comb, pressing comb or straightening comb, is a metal comb that “is heated on either a range top or burner to a temperature between 300 and 500 degrees Fahrenheit”. By pulling the heated comb through the hair, the pressure applied during the combing process breaks down the hair fiber's biochemical bonds. As the temperature diminishes, the bonds reconnect and keep the hair straight. Typically, the hair remains straight from one to two weeks or until it comes into contact with moisture or humidity.
Though originally “used by French women in Europe during the mid-19th century, the hot comb would become the foundation of the black beautician industry starting in the early 1900s”. Hot combs were a significant improvement from older methods used by African-Americans during and after slavery to straighten hair. Today, hot combs are still predominantly used in black salons as a means for straightening hair without chemicals.
In 1992, dermatologists Leonard C. Sterling and Purnima Sau revisited the theory by surveying 10 black women suffering from scarring alopecia. Renaming the condition follicular degeneration syndrome (FDS), they concluded that there was little evidence supporting the use of hot combs as the cause of the disease.
Information found in: http://brenda-inventions.blogspot.com.es/2008/08/who-invented-hot-comb.html
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