Application of heating wire: Hair dryers - Heanjia Super-metals Co., Ltd.

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Application of heating wire: Hair dryers

If you like looking after your hair, professional hair dryers are a banquet for your eyes, something to drool about and widgets you have to buy! Hair dryers of all kinds are in demand and these days the difference between a regular hair dryer or a professional type is not so great you can not afford the better quality product immediately.

Many people are familiar with the daily routine of washing, drying, and styling their hair. Although hair will eventually dry on its own if given enough time, most people reach for a hair dryer to speed up the process. While science may have disproven the link between wet heads and catching colds, it's still no fun to sit around with a head full of wet hair, especially in the winter.

A blowdryer or hair dryer 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.

Hair dryers were first invented in 1931 by a man named John Tubir, an English immigrant that came to the United States by steam boat in 1911. John Tubir had a rare hair condition called "follicle moisture" which affected his hairs ability to grow. To help his condition, he invented the hair dryer so that he would be able to dry out so his hair follicles could once again be healthy. He sold his design to a manufacturer, and so began the enterprise of the hair dryer.

Before the invention of the hair dryer, it was common for men and women to dry their hair using a vacuum cleaner. In fact, the original model of hairdryer was invented in 1890 by Alexander Godefroy by taking inspiration from the vacuum cleaner. Alexander invented it for usage in his hair salon in France and it was not portable or handheld, but instead could only be used by having the woman sit underneath it. A hair hood dryer has a hard plastic dome that comes down and fits over a person's head in order to dry their hair. Hot air is blown out through the tiny openings around the inside of the dome so the person's hair is dried evenly. Today hair hood dryers are mainly found in hair salons.

Since the 1920s, development of the hairdryer has mainly focused on improving the wattage and superficial exterior and material changes. In fact, the mechanism of the hairdryer has not had any significant changes since its inception. One of the more important changes for the hairdryer is having the materials change to plastic so that it is more lightweight. This really caught on in the 1960s with the introduction of better electrical motors and the improvement of plastics. Another important change happened in 1954 when GEC changed the design of the dryer to move the motor inside the casing Also, including safety mechanisms in them has been important, especially since Consumer Product Safety Commission set up guidelines in the 1970s that hairdryers had to meet in order to be considered safe to manufacture.

Since 1991 the CPSC has mandated by U.S. law that all dryers must use a ground fault circuit interrupter so that it cannot electrocute a person if it gets wet. By 2000, deaths by blowdryers had dropped to less than four people a year, a stark difference to the hundreds of cases of electrocution accidents during the mid-twentieth century. In terms of positive health, this type of hairdryer has also been cited as an effective treatment for head lice. Overall, the size, weight, noise, and appearance of the hairdryer has dramatically changed from the heavy bulky noisy contraptions of the early part of the twentieth century, to the streamlined plastic that people are used to today.

There are two other major types of blowdryers other than the handheld. These are the bonnet hairdryer and the rigid-hood hairdryer. The bonnet hairdryer was introduced to consumers in 1951. This type of dryer worked by having the dryer, usually in a small portable box, connected to a tube that went into a bonnet with holes in it that could be placed on top of a person's head. This worked by giving an even amount of heat to the whole head at once. The 1950s also saw the introduction of the rigid-hood hair dryer which is the type most frequently seen in salons, and it had a hard plastic helmet that goes over the head. This dryer works similarly to the bonnet hairdryer but at a much higher wattage.

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