360-degree comprehensive analysis of duvet knowledge

According to official statistics from the International Down Association, the popularity rates of down bedding in developed, developing, and poor countries are very different: the popularity rate of down bedding in Japan is 103%, that in the United States is 87%, and that in other developed countries such as Europe and the United States. Basically around 50%.

1. What is a duvet?

Down quilt refers to a quilt with down as the main filling material, and the minimum down content should not be less than 50%.

2. Characteristics of duvet

Good thermal insulation: Each feather of down is made up of thousands of tiny scales. Each scale is hollow, and these tiny pores are filled with large amounts of still air. Since the conductivity coefficient of air is the lowest, a natural barrier is formed to prevent hot and cold air from convection. This still air can absorb the heat emitted by the human body and isolate the intrusion of cold air from the outside. This is why Down has good thermal insulation properties.

Soft, no sense of oppression: The duvet is soft and weighs about 2.5 kg for a double duvet (the quilt weighs about 4.8-7.2 kg, and the silk quilt weighs 3.6 kg). It is currently the lightest natural warm bedding on the planet. It does not cause pressure on the human body (heart, lungs), promotes blood circulation, and makes it easy to turn over. It is most suitable for children, pregnant women, the elderly, people with poor sleep, or people with high blood pressure.

Good temperature regulation: Since down is a three-dimensional spherical fiber that contains a large amount of still air, it can shrink and expand as the temperature changes, producing a temperature regulation function. The duvet can be used at a temperature of 25 degrees to minus 40 degrees.

Powerful moisture absorption and moisture removal: Down has strong moisture absorption and moisture removal properties. It will automatically cycle through moisture absorption, diffusion, and evaporation under different temperatures and humidity. Due to the structure of the down, its surface area is large, so it will dissipate quickly after absorbing water. In addition, it contains a certain amount of oil and has moisture-repelling properties. In addition to absorbing the sweat emitted by the human body during sleep and quickly expelling it, the down quilt can also automatically adjust the temperature inside the quilt and has moisture absorption and dehumidification functions to keep the human body dry and prevent rheumatism. The comfortable relative humidity is 40-70%. In southern my country, the relative humidity is relatively high, reaching as high as 90% in some areas. Therefore, diseases such as rheumatism, arthritis, neuralgia, and eczema are quite common. Using down quilts can effectively reduce such diseases. incidence rate.

High bulkiness: The bulkiness refers to "the volume occupied by a certain amount of down (feather) under constant pressure in a container of a certain caliber." Here it refers to the elasticity of the quilt, which is a measure of the quality and grade of the duvet. key indicators. The level of bulkiness is related to the comfort and performance of the quilt, such as heat preservation, temperature regulation, moisture absorption, and dehumidification. For example: quilts made of linear fibers such as chemical fibers, cotton, wool, silk, etc., after 1-2 years of use, due to the poor compression resistance of the linear fibers, they are easy to harden, the bulkiness is reduced, and the size is shortened, and the material degrades quickly. Its functions such as heat preservation, temperature adjustment, moisture absorption, and moisture removal are also reduced. Because the unique down is three-dimensional spherical and rich in oil, it will never harden after years of use, which can ensure its function as new for a long time.

Good safety: not afraid of water - cotton absorbs water easily, is not easy to dry after getting wet, and cannot be washed, while down quilts are washable and easy to dry; not afraid of fire - down is animal protein and cannot be dried below 100 degrees Celsius Temperature (such as cigarette butts) will not burn.

Durability and economy: A good down quilt has a service life of up to 30 years for its anti-velvet fabric and up to 70 years for the filled down. It can be passed down for three generations in Europe. The average annual use cost is very low, and regardless of comfort level, sense of value, average cost of use, and durability are superior to quilts made of other materials.

Good fit: Because the down quilt is light, soft, and highly comfortable, it fits the human body well, making the body feel warmer and more comfortable. In addition, the sewing process of the down quilt is not like other traditional quilts that are in the shape of flakes but are made into independent squares, so it has the best fit.

Easy to store, does not take up space: the duvet has excellent elasticity and the largest compression ratio, it is very easy to take or store and is easy to store.

Comparison of down and other fillings

Warmth Comparison

According to the research results released by French scientific research institutions, there is no thermal insulation material in the world that exceeds the thermal insulation performance of down. The special structure of the down allows a large amount of still air to be filled in the down. Since the heat transfer coefficient of the air is the lowest, the thermal performance of the down is the best.

Breathability comparison

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 emits 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.

Fluffiness comparison

Down is full of elasticity. When tested with a down content of 50%, its fluffiness is equivalent to 3.5 times that of cotton and 2.2 times that of wool. Therefore, the down quilt is not only soft and warm but also feels good against the skin.

Comparison of service life

The service life of the duvet is 5 times that of other quilts (chemical fiber quilt, silk quilt), and its cost is only 3 times that of other quilts.

Cleanliness comparison

Cleaned down contains much less impurities than other materials.

Comparison of properties of down quilt, silk quilt, cotton quilt, and wool quilt

Among the quilts made of the four natural thermal insulation materials of cotton, wool, silk, and down, the duvet has the best thermal insulation performance and the best comfort.

Europeans regard duvets as healthcare products for treating joint pain, neuralgia, high blood pressure, and other diseases, while scientific research institutions in France and Germany regard duvets as the most ideal bedding.

Li Shizhen, a great Chinese medical scientist, mentioned in "Compendium of Materia Medica": "Choose goose belly fluff as clothes and quilts. It is soft and new and cold, and it is especially suitable for relieving the pain of babies." Explained from a modern point of view, the health care of duvets The function is determined by Down's unique properties of gentle warmth and moisture absorption and dispersion.

Sleeping under the duvet will make you feel more warm and comfortable without pressure, normalize your blood pressure, stabilize your central nervous system, and soon fall into a sweet dreamland.