Unverified80% confidenceTradeoffTime unknown
含氨纶/弹力纤维(3%-5%)的罗纹背心贴合度好不掉档，但氨纶超过8%的高弹面料反复水洗后易失去弹性变松垮，纯棉+少量氨纶是耐洗与贴合的平衡点
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80%
Confidence
Long-term
Relevance
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Unverified锦纶(尼龙)含量70%以上+氨纶18-25%的面料弹性回复力强不易松垮；棉含量高的塑形裤塑形力3-5次穿洗后明显衰减91% similarUnverified含氨纶（弹力纤维）5%-8%的棉质背心弹性与保形平衡最佳；氨纶超过10%虽更贴身但反复水洗后弹力衰减快，一年内易松弛90% similarUnverified面料弹力看氨纶（spandex/弹性纤维）含量：3%-5%即有回弹又不发闷，纯棉0弹力易鼓包变形，氨纶>8%则包裹感强反而失去松弛感89% similarUnverified罗纹袖口/下摆看含氨纶（弹性纤维）比例，含3%-5%氨纶的罗纹回弹好、久穿不松垮；纯棉罗纹初期紧实但反复穿洗后易松弛变形，无法恢复89% similarUnverified面料氨纶含量决定回复性：塑形效果需氨纶（弹性纤维）含量在18%-28%之间，低于15%支撑力不足、洗几次就松垮，高于30%过度紧绷且易起皱。锦纶+氨纶组合比纯棉+氨纶更耐洗不变形87% similar
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