Another possibility to check approximately the feather and down proofness is to measure the air permeability of the fabric.
另外可能近似测试出羽毛羽绒不穿透性的方法是：测量面料的空气渗透性。
Color silk fabric is of good air permeability and wet absorption as well as good ultraviolet ray absorption and anti-bacterial property but poor anti-crease, weak strength and easy yellowed.
彩色蚕丝织物具有良好的透气性和吸放湿性，良好的紫外线吸收能力和抗菌能力，但抗皱能力差，强力较低，伸长率较大，容易黄变。
After enzyme treatment, the fabric became more fluffy, the amount of fabric hairiness reduced. Drape coefficient, air permeability, whiteness and capillary effect were improved to some extent.
整理后的织物毛羽量减小，织物变得较蓬松，悬垂系数、透气量、白度和毛效均有不同程度的改善。
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