Unverified75% confidenceFactTime unknown
涤纶+氨纶混纺面料兼顾弹性贴合与速干，但氨纶比例高的面料长期反复拉伸后弹性会逐渐退化，影响贴合感。
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75%
Confidence
Long-term
Relevance
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Unverified面料含氨纶(弹性纤维)2%-5%可提升贴合度和回弹，避免膝盖式松垮；但氨纶＞8%会过于紧绷勒身且久洗后弹性衰减快84% similarUnverified面料回弹性差（洗几次后松垮）的判断：手拉伸后松开是否立刻回位；含锦纶（尼龙）的比纯涤纶回弹更持久，纯棉+氨纶款塑形力会随穿着次数快速衰减84% similarUnverified面料成分含4%-8%氨纶（弹性纤维）能兼顾弹性与版型保持；氨纶＜3%弹性不足深蹲易紧绷，＞10%易变形松垮81% similarUnverified氨纶混纺带来双向弹力，久坐后裤膝处可能出现轻微起包变形，但因面料弹性会部分回复，整体形变比纯梭织面料更易恢复81% similarUnverified高弹氨纶混纺面料弹性较好，但多次机洗后容易出现弹力下降或起球，耐久性是此类产品的普遍短板。81% similar
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