The yield of white duck down is less, and that of grey duck down is more. Take duck down as an example. In the south, most of them are lake duck down, and almost all of them have black and gray hair. The number of white ducks is less than that of gray ducks, so the yield of white duck down is naturally less.

Step 2 color

White duck down is white; Gray duck down is gray.

Step 3 use

Light-colored fabrics are mostly filled with white duck down, while dark-colored fabrics are mostly filled with gray duck down.

In addition, on the premise of the same cashmere content and filling amount, there is not much difference in fluffy degree and comfort between grey duck down and white duck down.

Extended data:

The white duck down jacket keeps warm very well. The most useful component of white duck down jacket is down fiber-natural protein fiber from waterfowl. The reason why down fiber has good thermal insulation performance is that its unique bifurcated morphological structure brings a high degree of fluffiness, so it has a strong ability to contain still air.

Simply put, the greater the ability of down products to contain still air, the better the warmth retention of the products. The scientific reason behind this is that the lower the thermal conductivity of air, the smaller the thermal conductivity of materials and the higher the thermal insulation rate.

Down fibers from different sources have different morphological structures due to different poultry breeds and living habits. Therefore, the difference of this morphological structure determines the advantages and disadvantages of down fiber in warmth retention.

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