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ironing
Ironing is the use of a heated tool (an iron) to remove wrinkles from fabric.〔(【引用サイトリンク】title=Ironing )〕 The heating is commonly done to a temperature of 180–220 °Celsius, depending on the fabric.〔 Ironing works by loosening the bonds between the long-chain polymer molecules in the fibers of the material. While the molecules are hot, the fibers are straightened by the weight of the iron, and they hold their new shape as they cool. Some fabrics, such as cotton, require the addition of water to loosen the intermolecular bonds. Many modern fabrics (developed in or after the mid-twentieth century) are advertised as needing little or no ironing. Permanent press clothing was developed to reduce the ironing necessary by combining wrinkle-resistant polyester with cotton.
The first known use of heated metal to "iron" clothes is known to have occurred in China.〔(Oldandinteresting.com )〕 The electric iron was invented in 1882, by Henry W. Seeley. Seeley patented his "electric flatiron" on June 6, 1882 (U.S. Patent no. 259,054).〔(Enchantedlearning.com )〕
==Equipment==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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