White duck down is good.

White duck down is good, white duck down is more expensive. The best of the down is goose down, followed by duck down. In duck down in white duck down and more expensive than the price of gray duck down, this is due to a lot of down jacket manufacturers in the south, and the south of the abundance of gray duck or black duck, white duck is comparatively less, in accordance with the principle of scarcity is expensive, white duck down is naturally more expensive.

Duck down

Duck down is long in the duck's abdomen, into the rutabaga-like down, into pieces of feathers. As down is an animal protein fiber, globular fiber densely covered with millions of triangular tiny pores, can contract and expand with temperature changes, resulting in thermoregulation function, can absorb the human body radiates the flow of heat, isolated from the outside world of the invasion of cold air.

Distinguishing duck down

Feather down is also divided into duck down and goose down, under the same conditions, the degree of warmth of goose down is slightly higher than duck down.

There are 3 main performance indicators of down: the first indicator is the weight of the fill, such as 400 grams of goose down sleeping bag, 1100 grams of duck down sleeping bag, this weight is not the weight of the sleeping bag, but refers to the net weight of the fill down; the second indicator is the down content, down is composed of feathers and down, the feathers have a supportive role, warmth mainly from the fine down.

The down content is expressed as a percentage, such as 80 down, which means that the content of down in 100 weight units is 80 units. Duck down is generally the highest down content in 85 to 90, goose down can be up to 90 to 95; the third indicator is the expansion of the down, expansion is an ounce of down in 68.4 grams of pressure how many cubic inches, the higher the expansion of the down, the better the warmth of the down.

Generally, the expansion degree of domestic duck down is about 450, and the expansion degree of domestic goose down is from 450 to 600.

The Andean goose down imported from the United States can be up to 95 or so, and the expansion degree is up to 700 to 800.

The warmth of goose down is definitely better than duck down, mainly to see the amount of fixed air, that is, the more fluffy and thicker things are warmer. Down is the same, because the structure of the down so the size of the down fiber directly related to the amount of fixed air.

Generally speaking, the volume of goose down fibers is larger than duck down fibers, the amount of fixed air is also larger than duck down fibers, so naturally warmer than duck down. You can see on the surface of the market 1500G duck down limit temperature of up to -29 degrees. And 1500G goose down limit temperature at least -40 degrees.

And because ducks are omnivores, there is a fishy smell in the fleece, although the treatment can be eliminated, but the flavor can still be countered out after a year or two, but also tolerable. And geese are herbivores, there is no odor in the fleece.