People often ask Xiaobian: what's the difference between white duck down and grey duck down? Some people think that the quality of white duck down is better than grey duck down because white duck down is more expensive than grey duck down. What's the difference between white down and grey down? Good down in winter is light and warm, so it's very important to choose raw materials.
Down can be classified into white goose down, grey goose down, white duck down and grey duck down according to varieties. With the same content of velvet, goose down is more expensive than duck down, and white down is more expensive than grey down. Under the same conditions, the overall quality of white goose down is better than that of white duck down, but there is no difference between the performance indicators of white duck down and gray duck down (warmth retention, fluffy, etc.). The same goes for white and grey goose down.
Goose down is more expensive than duck down, while white down is more expensive than grey down. What's the price?
The reason is very simple: rare things are precious.
The reason why goose down is much more expensive than duck down is not that there is a big difference in price due to the fact that the quality of goose down is much higher than that of duck down. More importantly, it is because there is more duck breeding, more duck down production, less goose breeding and less goose down production.
The output of white goose down is less than that of grey goose down, and the output of white duck down is less than that of grey duck down. Take duck down as an example. Most of the duck down in the south is lake duck down, almost all of which have black gray hair. The number of white ducks is less than that of gray ducks. The output of white duck down is naturally less, and the price is naturally expensive.
In terms of use: white duck down is used as the main filling material of light fabric, and grey duck down is used as the main down clothing of dark fabric. There is no saying that white duck down is warmer than grey duck down. Only because the color of some down products is lighter, and the number of layers of the liner is less, in order to avoid the color of the filler, white duck down is generally used. In particular, the down jacket made of white fabric generally uses white duck down to avoid appearing gray. However, if the cloth is thick or multi-layer, this problem is basically not to be considered.
Therefore, the production of white duck down is less and its use is more extensive, which is not due to its better warmth retention and fluffness. Generally speaking, the quality of down does not lie in the color.