SchoolChalao

  • Helpline: +91-8058868746
  • Mail us: help@schoolchalao.com
  • LOGIN | REGISTER
    Tutorial Library

Learning Point

Clothes Iron

Previous Next

What is Clothes Iron?

A clothes iron is a small hand-held appliance with a handle holding a flat, roughly triangular surface that, when heated, is used to press clothes to remove creases. It is named for the metal of which the device is commonly made, and the use of it is generally called ironing. Ironing works by loosening the ties between the long chains of molecules that exist in polymer fibre materials. With the heat and the weight of the ironing plate, the fibres are stretched and the fabric maintains its new shape when cool. Some materials, such as cotton, require the use of water to loosen the intermolecular bonds. Many materials developed in the twentieth century are advertised as needing little or no ironing.

A clothes iron is a household appliance used to press the wrinkles out of and creases into clothes. When the iron is turned on, the consumer moves it over an item of clothing on an ironing board. The combination of heat and pressure removes wrinkles.

 

History of Clothes Iron:-

Metal pans filled with hot coals were used for smoothing fabrics in China in the 1st century BC. From the 17th century, andirons or sad irons (from an old word meaning solid) began to be used.

Another solution was to employ a cluster of solid irons that were heated from a single source: As the iron currently in use cooled down, it could be quickly replaced by a hot one. In the late nineteenth and early twentieth centuries, there were many irons in use that were heated by fuels such as kerosene, ethanol, whale oil, natural gas, carbide gas, or even gasoline.

In the industrialized world, these designs have been superseded by the electric iron, which uses resistive heating from an electric current. The hot plate, called the sole plate, is made of aluminium or stainless steel polished to be as smooth as possible; it is sometimes coated with a low-friction heat-resistant plastic to reduce friction below that of the metal plate. The heating element is controlled by a thermostat that switches the current on and off to maintain the selected temperature. The invention of the resistively heated electric iron is credited to Henry W. Seeley of New York City in 1882. In the same year an iron heated by a carbon arc was introduced in France, but was too dangerous to be successful. The early electric irons had no easy way to control their temperature, and the first thermostatically controlled electric iron appeared in the 1920s. Later, steam was used to iron clothing. Credit for the invention of the steam iron goes to Thomas Sears. The first commercially available electric steam iron was introduced in 1926 by a New York drying and cleaning company, Elec, but was not a commercial success. The patent for an electric steam iron and dampener was issued to Max Solnit of Chicago in 1934. In 1938 Solnit granted the Steam-O-Matich Corporation of New York the exclusive right to manufacture steam-electric irons. This was the first steam iron to achieve any degree of popularity, and led the way to more widespread use of the electric steam iron during the 1940s and 1950s.

 

                                                                    school-chalao-clothes-iron1 image

 

How Clothes Iron work?

Ironing is the use of a heated tool (an iron) to remove wrinkles from clothes. The temperature needed for this is usually around 180-220oC depending on the type of cloth. Ironing works by loosening the bonds between the long-chain polymer molecules in the fibres of the cloth. The fibres are straightened by the weight of the iron while the molecules are hot, and they hold their new shape as they cool. Some fabrics, like cotton, require the addition of water to loosen the intermolecular bonds.

The basic principle on which the electric iron works is that when a current is passed through a piece of wire, the wire heats up. This heat is distributed to the sole (base) plate of the electric iron through conduction.

 

                                                                   school-chalao-clothes-iron2 image

 

Very Useful (0)

Useful (0)

Not Useful (0)