It turns out neither a jacket, no boots, nor hats at all warm. It is more correct to say this: why in a hat, in mittens and a jacket is warm even in the cold?
The difference is. If you remove warm mittens on the street in winter, your hands will freeze. Mittens in the cold will also be cold. Когда варежки будут снова одеты на руки, совсем скоро в них станет тепло. So it turns out – the mittens did not warm his hands, but the mittens were warming with their warmth. Just mittens are well cherished and maintain heat.
The most interesting thing is that in clothes and shoes they retain heat, they do not miss the cold not at all threads and the fibers from which they are made, namely the air that is between them. Air – a strong barrier for frost. The more villi on the fabric of clothing, the more fluffy it is, the more air is hidden in it, which means that such clothes are very warm.
Thus, so that the clothes and boots are warm, it is necessary that they keep a place for air. Let’s talk about modern warm clothes and shoes and methods of maintaining air in it.
Today, among children and adults, the so -called “thermal underwear” (funki, pants, socks, hats, mittens). This linen is made of various canvases, as well as their combinations that have excellent thermal insulating (t.e. Preserving heat) properties: sheep wool, merinos wool, Angora rabbit wool, synthetic acrylic and polypropylene. This allows you to create an air layer between the body and the external environment, which preserves and maintains heat even in the coldest and most severe conditions.
In winter shoes, and especially in children’s boots, Kotofei, wool is often used. Due to the fact that the coat is very villous, the air circulates in it, which protects from frost severe in winter, does not allow it to penetrate the shoes and does not release the warmth of the body. For mothers, the issue of choosing warm children’s winter shoes always remains very important. That is why it is recommended to choose children’s winter boots with lining of sheep wool, as well as felt boots. At all times and even today, boots are still made of dried wool of sheep are very relevant and are in demand. Such shoes in winter will reliably and undoubtedly protect against the most severe frost, wind and snow.
Winter clothing in our time is insulated with synthetic materials. One of them is isosoft. This is a synthetic insulation, the fibers of which are the shape of balls. Between these balls – air that preserves heat. Such a heater as Hollofiber (Faybertek) has hollow polyester fibers twisted in the form of springs. Thanks to this structure, Hollofiber has excellent thermal insulation, holds heat well, does not absorb moisture and smells. Tinsulite insulation developed in the United States consists of a combination of hollow and ordinary microvolon. High thermal insulation is achieved due to the minimum thickness of the fibers. The thinner they are, the greater the total surface of the fibers holding the air, and, therefore, heat lasts longer in such clothes.
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