Unverified80% confidenceFactTime unknown
含氨纶/莱卡比例越高（通常15%-25%）弹性回复和贴合越好，纯尼龙或棉质护膝洗几次后易松弛失去压缩效果，看成分标注可判断耐用性
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80%
Confidence
Long-term
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Unverified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86% similarUnverified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83% similarUnverified95%棉+5%氨纶的成分决定其透气性和吸湿性较好，但弹性恢复力弱于莫代尔或高氨纶混纺款，频繁拉伸后腰口松紧可能比化纤混纺款更快松弛。83% 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82% similarUnverified面料含氨纶赋予中等弹性，日常久坐后裤型恢复较好，但氨纶成分会使长期多次洗涤后弹性缓慢下降，耐久度弱于纯棉款。82% similar
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