All Hair Dryers: The History of Blowdryer (also frequently called a hairdryer)

A 1900 blow dryer (France)A blowdryer, also frequently called a hairdryer, is an electromechanical device designed to blow cool or hot air over wet or damp hair, in order to accelerate the evaporation of water particles and dry the hair. Blowdryers allow to better control the shape and style of hair, by accelerating and controlling the formation of temporary hydrogen bonds inside each strand. These hydrogen bonds are very powerful (allowing for stronger hair shaping than even the sulfur bonds formed by permanent waving products), but are temporary and extremely vulnerable to humidity. They disappear with a single washing of the hair. Hairstyles using blowdryers usually have volume and discipline, which can be further improved by the use of styling products and brushes during drying to add tension, hold and lift. There is a myth that using blowdryers increases hair loss. There is no scientific evidence to support this. Blowdryers were invented around the end of the 19th century. The first model was created by Alexandre F. Godefroy in his salon in France.

The first hair dryer was the vacuum cleaner! Around the turn of the century, women dried their hair by connecting a hose to the exhaust of their vacuum cleaners. In early models, the front of a vacuum cleaner sucked air in, the back blew air out, and the hose could be attached to either end.
In 1920, the first true hair dryer came on the market, but it was extremely large and heavy, and frequently overheated. Since then, thousands of patents have been issued for different hair dryer designs, but most of them only tweak the outside packaging of the hairdryer so that it looks more aesthetically appealing to you. Aside from the addition of some safety features, the inside of a hair dryer hasn't changed too much over the years. Not until 1951 was the first really workable dryer made. The device consisted of a hand-held dryer connected to a pink plastic bonnet fitted over the woman’s head.

FunctionMost models use coils of wire that have a high electric resitivity and heats rapidly with an electric current. A fan usually blows ambient air past the hot coils resulting in heated air effective for drying. The heating element is most hairdryers is a bare, coiled nichrome wire that is wrapped around insulating mica heating boards. Nichrome wire is used in heating elements, because of two important properties. It is a poor conductor of electricity and it does not oxidize when heated.

All Hair Dryers

jueves, 2 de octubre de 2008

The History of Blowdryer (also frequently called a hairdryer)

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