How to deal with duck feathers before making down jackets?

Processing methods of feathers and down;

1. Dust removal. Remove trash, impurities and other impurities with duck feathers before washing.

Wash. Put a certain amount of feathers into the wool washing machine and add detergent to wash them for enough time.

Dehydration. Washed feathers will dehydrate. At the same time, complete dust removal is carried out again.

4. classification. It is realized by using wind power. The ones that fly farthest are down, then little hair, and then big hair. According to their own weight, they fall into each storage box of the sorting machine.

5. Iron removal. Because all machines are made of iron-containing materials, iron chips are mixed in feathers and must be removed by magnets. At this time, feathers and down can be used as fillers for bedding, clothes, pillows, etc.

Extended data:

Advantages of using duck down as filler:

1, duck down is fluffy, with a lot of air in the middle to prevent heat loss caused by air flow. At the same time, the thermal conductivity of duck down itself is very poor, which prevents the heat loss caused by thermal conduction. Therefore, duck down has a good warm-keeping performance.

2, ducks have two kinds of hair, which is called duck down, which mainly plays the role of heat preservation. They are thin, dense and light. It makes it difficult for cold air to enter, so the body temperature will naturally not be lost, so it is very warm.

3. The down jacket with white duck down is very warm. The most useful component of white duck down jacket is down fiber, a natural protein fiber from waterfowl. Its unique bifurcated morphological structure has brought a huge height, so it has a strong ability to accommodate 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.

References:

Baidu encyclopedia-duck down