Unverified75% confidenceTradeoffTime unknown
面料弹性通常来自氨纶（弹力纤维）成分，含2%-5%氨纶的校服裤活动性最佳；氨纶超过8%虽更弹但久洗后易失弹变形松垮
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75%
Confidence
Long-term
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Unverified弹力连衣裙氨纶（弹性纤维）含量控制在5%-8%时兼顾贴身与回弹；氨纶＜3%贴身度不足显松垮，氨纶＞12%易在洗涤后失弹松弛、下摆变形89% similarUnverified面料含氨纶（弹力纤维）在12%-18%区间时兼顾贴身回弹与不勒感；低于8%的锦纶/涤纶合体上衣在大幅度伸展时会产生束缚感，高于20%会在洗涤后加速松弛塌形88% similarUnverified面料含氨纶/弹性纤维3%-5%时兼顾回弹与挺括，含量过高（＞8%）虽软但易松垮变形、洗后失去支撑，西装版松紧裤应控制弹性纤维比例88% similarUnverified含氨纶(弹性纤维)2%-5%的裤子兼顾弹力与版型，超过8%易松垮变形、洗后回弹差；纯棉0%弹力活动受限87% similarUnverified氨纶（弹性纤维）含量决定弹力回弹：优质紧身裤氨纶占比18%-25%，低于12%易松垮变形，高于30%虽弹但易勒且透气差86% similar
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