发布时间：
2019
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01
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30
How to Choose a High-quality Down Jacket 1. The warmth retention proporty of a down jacket is determined by the fluffiess and the amount of the down inside to certain extent. The quality of down and its processing technique are also critical. Good down material’s product process includes the procedures of down classifying, heating, degerming, deodorization and washing. For measurement, normally there are China national standards, European standards and Japan standards for measuring the quality of down products. It needs professional inspection to get the value of the indicators of these standards, however, we still can judge the down jacket’s quality from the following intuitive aspects: (1) The resilience of down: Some down suits can not restore to ...
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