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The Heat-Insulation Yardstick of Down - Fill Power
Author：admin AddTime：2010-02-04 15:14:19 Hits：1837
Fill power is a measure of down products, Fill power of thickness or loft units, and down insulation value of rough-related. The higher the fill power, feather insulation contained in the air the more so the better the insulation.Fill power values range from feathers of 175 cm ³ / g (300 in ³ / oz) to high-quality down to 900 cm ³ / g.high fill power and the proportion of feather in the velvet, and velvet duo, the average size.
Fill power is a measure of the quality of down the most commonly used method. Measurements need to take 1 ounce, down sample, placed in a cylindrical plexiglass container, plus the weight plate.Testing requires a certain temperature and humidity, the sample must be processed in advance. In the other conditions being equal, with a high degree of down production of down jacket (duvet or sleeping bags) fill power than the low-down manufacturing the same warm down jacket lighter and easier to compress.Fill power is expressed as cubic inches an ounce (in ³ / oz) - fill power 400-450 is medium-quality, high-quality fill power of 500-550, and 550-750 is very high quality, fill power above 750 are excellent.
More than 750 fill power with down 400-fill power difference is very great. Almost all the listed market is down you can buy meat geese (or ducks) by-products.Single-down while feeding geese to obtain (or ducks) may be surprisingly high prices. A low degree of fill power which kept four months from the consumption of slaughtered geese (or ducks). These geese (or ducks) body hair will be careful finishing, cleaning and mixed, but they do not like those mature as fill power feather. down more than 700 fill power is used from the very small number of breeding geese (or ducks).These geese (or ducks) will be in the spring molt.When their hair off, hand them to collected.Their limited number, of course, very expensive.Single velvet down larger down more soft.To obtain such quality, the only way is to hand down the collection, which is the main reason for its scarcity.
Before an article:2009 China down bedding Market Development Summit Forum held in Xiaoshan, Zhejiang
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