Gentle and warm
Among the four natural thermal insulation materials: cotton, wool, silk and down, down has the best thermal insulation performance. Li Shizhen, a great medical scientist in my country, also mentioned in “Compendium of Materia Medica”: “Choose goose belly down for clothing and quilts. It is soft and fresh and cold, especially suitable for relieving the pain of infants.” From a modern point of view, down The health care function of the quilt is determined by the unique properties of down, such as soft warmth, moisture absorption and dispersion. From the perspective of warmth retention, research results published by French scientific research institutions believe that there is currently no thermal insulation material in the world that exceeds the warmth retention performance of down, because down has a star-like structure, and each velvet filament can be seen under a magnifying glass. It is in the shape of fish scales, with countless tiny pores, containing a large amount of still air. Due to the low conductivity of air, down has good warmth retention properties. In addition, down is full of elasticity. Tested with a down content of 50%. Its light fluffiness is equivalent to 2.5 times that of cotton and 2.2 times that of wool, so the down quilt is not only soft and warm, but also feels good against the skin.
Moisture absorption and dispersion
In addition, natural down also has good moisture absorption and dispersion properties that other thermal insulation materials do not have. According to measurements, the human body continues to emit sweat while sleeping. An adult emit about 100 grams of sweat a night. Down can continuously absorb and discharge the sweat released by people, so that the body does not feel damp and stuffy.
To sum up, due to the unique properties of down, such as soft warmth, moisture absorption and dispersion, sleeping under a down quilt will make you feel warm and comfortable without any sense of oppression, normalize blood pressure, stabilize the central nervous system, and quickly enter sweet dreams. , so it also has excellent effects on beauty. It is precisely because of this reason that “beautiful women emerge from under the duvet”.
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