Down is by far the warmest material that humans use to keep out the cold. After the down is cleaned, dried and sterilized, it can be used to make duvets, down jackets, down pillows, etc. Compared with artificial materials, down has superior thermal performance, better elasticity and higher bulkiness.
Suede is by the feather that does not contain hair bar, and many clusters of filaments that grow on its barn, form a stable thermal protection layer by the filaments on the suede interlaced. Therefore, down is the main material for down to keep warm. Each ounce of down has about 2 million filaments.
The better quality velvet filaments are longer, and the velvet flowers formed are correspondingly larger.
Feathers are the small feathers with feather stems on the back and tail of ducks or geese. There are also long feathers that are broken and formed. The content of feathers should not be too high, but because it can improve the fluffiness of down, it must contain a certain proportion. .
Generally, down can be divided into goose down and duck down according to the source of down, and can be divided into white down and gray down according to the color of down.
Compared with goose down and duck down, the fiber structure is more slender, the bulkiness is higher, the warmth retention capacity is stronger, and the quality is lighter; the white down and gray down are more suitable for light-colored fabrics, more beautiful and more popular. So to sum up, the white goose down quilt is better.