Down is the feathers of poultry, and down cotton is a cotton fiber product similar to feathers.
Down is a flower-like fluff that grows on the abdomen of geese and ducks, and the flakes are called feathers. Because down is a kind of animal protein fiber, it has higher thermal insulation properties than cotton (vegetable cellulose), and the down ball-shaped fiber is densely covered with thousands of small triangular pores, which can shrink and expand with temperature changes, resulting in a temperature regulation function. It absorbs the hot air that the human body emits, and isolates the cold air from outside. Down is divided into duck down and goose down, but duck down is common in the market.
Down cotton: It is produced by a special process with different specifications of superfine fibers. It is called down cotton because of its quality similar to down, which fills the gap of down substitutes in the market. The product is light, thin, delicate, soft, good heat preservation, not easy to deform, does not penetrate silk and has the feeling of down. Its warmth retention performance exceeds that of down with the same weight. It can be widely used in down jackets, ski shirts, cold-proof clothing, etc. Warm products. There are two types of down cotton: one is carded and shaped, and feels similar to DuPont cotton, also known as imitation goose down cotton; the second is unformed, similar to PP cotton, and feels close to down, which is an ideal substitute for down. ! The so-called down cotton is hollow, but it is not real cotton, but hollow polyester as the filler. Because the air is insulated, it has a certain degree of warmth.
In terms of comparing the two, the difference is obvious:
⑴ Down is a natural fiber, and down cotton (hollow cotton) is a chemical fiber;
⑵The downgrade is higher and the quality is better, of course, the selling price is also higher;
⑶ Down jacket has better thermal performance than down cotton.