Goose down: large down feathers, small feather stalks, good quality, sufficient elasticity, and strong warmth retention;
Duck down: The down and stems are inferior to goose down, but the quality, elasticity and warmth retention are very high;
Goose and duck mixed down: average down, poor elasticity, but good warmth retention;
Flying silk: processed and crushed from raw pieces, has poor elasticity and warmth retention, contains powder, is of inferior quality, and tends to clump after washing
In addition to the above, the quality of down can also be divided into southern down and northern down. Generally speaking, the down produced in the north is larger than that in the south, and ducks generally have a longer growth period, so relatively speaking, northern down is better than southern down.
The pillow cores of down pillows include white goose down, gray goose down, white duck down, gray duck down, goose and duck mixed down and crushed down. The quality of the quilt core mainly depends on its standard down content and down filling. Generally, the down content of down quilts is between 15 and 70%, with pure down accounting for a higher percentage. The best quality is goose down, followed by duck down, and then mixed goose and duck down. Crushed down has poor elasticity and warmth. .
Also, the velvet produced in summer is small and miscellaneous. The velvet produced in winter is much better…
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