Down is a flower-like fluff that grows on the abdomen of geese and ducks, and the flakes are called feathers. Because down is a kind of animal protein fiber, it has higher thermal insulation properties than cotton (vegetable cellulose), and the down ball-shaped fiber is densely covered with thousands of small triangular pores, which can shrink and expand with changes in temperature, resulting in a thermoregulation function. It absorbs the hot air that the human body emits, and isolates the cold air from outside.
Down is composed of feathers without hair shafts, and many tufts of filaments grow on the feather branches. It looks more like dandelion seeds, with pompoms fluttering. The down is light and fluffy, and is used by geese, ducks and other waterfowl as the inner layer to keep warm. Ground poultry, such as chickens, do not produce down.
Down is generally divided into goose down and duck down according to the source, and divided into white down and gray down according to the color. Of course, there are also black down from Iceland eider ducks. Relatively speaking, better down usually comes from larger, more mature birds, so goose down will be slightly better than duck down. In terms of color, because it is white, white velvet can be used for light-colored fabrics without color penetration, and is more popular than gray velvet.
Down is now very popular in down jacket products. Wearing down jackets made of down in winter will keep you warm.
In addition, down jackets currently play a pivotal role in the fashion industry.
It looks more like dandelion seeds, with pompoms fluttering. The down is light and fluffy, and is used by geese, ducks and other waterfowl as the inner layer to keep warm.
If you want to know more, please contact us: Down Proof Fabric.