A blowdryer or hairdryer is an
electromechanicaldevice designed to blow cool or hot airover wet or damp hair, in order to accelerate the evaporationof 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 hairbrushes during drying to add tension, hold and lift.
Blowdryers were invented around the end of the 19th century. The first model was created by Alexandre F. Godefoy in his salon in France. The handheld, household hair-dryer first appeared in 1920.
Most models use coils of wire that have a high electric
resistivityand 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 in most hairdryers is a bare, coiled nichrome wire that is wrapped around insulating mica heating boards. Nichrome wireis used in heating elements, because of two important properties: it is a poor conductor of electricity and it does not oxidizewhen heated.
A survey of stores in 2007 showed that many hair dryers have ceramic
heating elements (like ceramic heaters) - because of their "instant heat" capability.
Many of these hair dryers have "cool shot" buttons which turn off the heater and just blow room temperature air while the button is pressed.
Many also feature "ionic" operation, to reduce the amount of static electricity build-up in the hair. Manufacturers also claim this makes the hair "smoother".
Wikimedia Foundation. 2010.
Look at other dictionaries:
blowdryer — See blow dry. * * * … Universalium
blowdryer — n. small electrical appliance that blows a stream of air and used to dry hair … English contemporary dictionary
Baptism — This article is about the Christian religious ceremony. For other uses, see Baptism (disambiguation). Baptism of Neophytes by Masaccio, 15th century, Brancacci Chapel, Florence.[ … Wikipedia
Surfboard wax — (also known as surfwax ) is a formulation of natural and synthetic wax for application to the deck of a surfboard, bodyboard, or skimboard, to keep the surfer from slipping off the board when paddling out or riding a wave. It is also used to… … Wikipedia
Repoussé and chasing — Chased and chasing redirect here. For other uses, see Chase (disambiguation). The Great Dish, or Great Plate of Bacchus, from the Roman Mildenhall Treasure … Wikipedia
Maximumrocknroll — This article is about the music magazine. For the album of the same name by NOFX, see Maximum Rocknroll (album). MRR#1 Maximum Rocknroll Issue #1 Maximum rocknroll is a widely distributed, monthly not for profit fanzine based in San Francisco,… … Wikipedia
Hairbrush — A hairbrush is a small brush with rigid bristles used in hair care for brushing, styling, and detangling human hair, or for brushing a domestic animal s fur. The earliest US patent for a modern hairbrush was by Hugh Rock in 1854 (US… … Wikipedia
Denkou Choujin Gridman — Gridman Denkou Choujin Gridman (電光超人グリッドマン, Denkō Chōjin Guriddoman?), translated into English … Wikipedia
Mykel Board — Born January 31, 1950 (1950 01 31) (age 61) Long Island, New York, U.S. Mykel Board (born January 31, 1950, Long Island, New York, U.S.) is a regularly published journalist, especially well known for his articles in Maximumrocknroll. Born… … Wikipedia
Art Stars — is a group of experimental performers, comedians, poets, storytellers, musicians, and performance artists located in and around New York s Lower East Side. Appropriated by the New York Lower East Side open mic performance scene, the term Art Star … Wikipedia