1. Ironing clothes can't rely solely on temperature. If the temperature is too high, it is easy to burn clothes. Only by relying on moisture can heat energy quickly enter the fiber, which can realize the rapid transfer of heat, shorten the heating time, reduce its yield strength and deformation resistance, and will not damage the fiber because of excessive temperature, thus achieving the purpose of keeping the fabric and ironing.
Clothing is made of various fiber fabrics. As far as fibers are concerned, both natural fibers and chemical fibers are composed of linear molecules. These molecules are arranged freely in the fiber. Inside the fiber, the part with tight molecular arrangement and high orientation is called crystallization area or setting area, and the part with loose molecular arrangement and low orientation is called amorphous region. When the fiber meets water, water molecules will enter the fiber along the tiny cracks in the amorphous region, making the fiber swell, loosen and stretch, and then return to the original fluffy and curly state after self-drying. Water can make fiber molecules squeeze each other, making fiber tissue in a state of expansion, looseness and elongation. Under the lubrication of water molecules, the macromolecules in the fiber are easy to move and hot-press to form, and finally achieve the purpose of heat setting.
Pay attention to the sign of ironing.
To iron clothes with an iron, we must first understand the material characteristics of clothes before we can control the temperature. For example, some chemical fibers are too hot, while others are not. Some natural fibers, such as silk and wool, are not suitable for high temperature, while cotton and linen are not afraid. In addition to the dial scale of the temperature on the iron, there will also be obvious marks on the clothes washing label.
In addition, some fabrics, directly pressed on the surface of clothes with an iron, will be polished bright or white, which will not only hurt tissues, but also be ugly. At this time, it is necessary to cover it with an interlining cloth or homogeneous cloth before ironing, so that this phenomenon will not occur.