The real duvet (goose, duck down, etc.) is the top grade in the quilt. Usually, the down is the feather used as a filler in the cold goods. It is the part under the goose, the duck, the bottom of the belly. Shaped fluff. Down is not only good in warmth and softness, no pressure and sultry, but also has moisture wicking function. Down is an animal protein, which has higher heat preservation capacity than plant fibers such as cotton. The three-dimensional triangular skeleton structure of down can store a large amount of air, and the air itself is a poor conductor, so it can resist external cold and human body temperature loss. . The core of the duvet is white goose down, gray goose down, white duck down, gray duck down, goose duck mixed velvet and pulverized velvet. The best quality is goose down, which has large velvet, small feather stem, good quality, elastic foot, strong warmth, better moisture absorption, sweat permeability, relatively dry, and higher bulkiness. Followed by duck down. Goose and duck are mixed with fluffy hair, and the elasticity is poor, but the warmth is not bad. The pulverized velvet is smashed by the processing of the bristles, and the elasticity and warmth are poor, and there is powder and the quality is second. The national standard stipulates that the down must be more than 50% to be duvet, and less than 50% can only be called feather quilt. Down is different from feathers. The difference is that the feathers are flat two-dimensional structures, mainly covering the outer layers of the birds. Each piece of feather is made up of a hard rod that runs through the middle and is distributed on each side of the pole. The fiber is composed of a flat structure, which is used for bird flight after growing, while the small feather is for protection; the down is a soft, fluffy three-dimensional structure, which is mainly used for keeping warm. Down is made up of tufted filaments that grow on a plume point without feathers. It looks more like a dandelion seed. Down is a lightweight, fluffy fluff for warming the inner layers of geese, ducks and other waterfowl. Land poultry, such as chicken, does not produce down. The so-called filigree goose down, goose down, etc. are not natural goose down, so the price is also a lot worse. The goose down is the lightest in white goose down and the warmest. The top white goose downs containing more than 75% of goose down on the market are close to 2,000 yuan, while the best white goose downs containing more than 90% of goose down often exceed 3,000 yuan. The so-called goose down duvets, which are ridiculously low in price, are not artificial velvet or have low goose content. Each bed of good goose down duvet will definitely indicate the goose down content and natural white goose down in a conspicuous place, most of which have transparent sample packages (see photo to the right) for customer reference. Everyone can go to the mall to ask for prices and check instructions. Brands of ordinary grades often have no goose downs, let alone white goose downs, which can be seen as honorable.
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