What is the principle of heating autumn trousers?

The principle of heating autumn trousers is to use fiber substances to react with water vapor emitted by human body, which can release a little heat. To keep warm. By absorbing the moisture emitted by the human body, it actively generates heat. Warm autumn trousers are also raw materials and a special fiber material. The heating materials produced by domestic manufacturers are all imported from Japan.

Autumn trousers refer to trousers worn under woolen trousers, cotton trousers or outer trousers to keep warm when the temperature is cold. Generally, the weather turns cold in autumn, so wearing a pair of trousers is not enough to keep warm, so adding a pair of close-fitting trousers inside the trousers is called autumn trousers.

Ethnicity

The origin of autumn trousers is the North American continent. It is said that the first patent of autumn trousers design was obtained by Canadian Frank stanfield. He and his brother started from cotton underwear that claimed not to shrink, and formally applied for the patent of autumn trousers on 19 15 12.7, becoming the father of modern commercial autumn trousers.