Unverified85% confidenceTradeoffTime unknown
含氨纶/弹力纤维（如5%氨纶）的T恤更贴身修身但透气性下降且长期洗涤后弹力衰减；100%纯棉更透气挺括但易皱、缩水率更高
1
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85%
Confidence
Long-term
Relevance
-
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Unverified含2%-5%氨纶的弹力衬衫贴身舒适易活动，但纯棉爱好者需注意：氨纶超过5%会明显减少透气性且水洗后弹力衰减快，2年左右易变形松垮89% similarUnverified纯氨纶+棉的高弹T恤洗后缩水变形率显著高于含涤纶或锦纶的混纺款，纯棉高弹款需预留一码并避免烘干89% similarUnverified含棉量高的免烫衬衫（棉≥80%）经反复机洗后免烫性能会衰减，通常30-50次洗涤后需要轻微熨烫；纯化纤或高涤混纺免烫持久性更好但透气差。看重长期免打理选高涤混纺，看重初期体验选高棉。87% similarUnverified纯棉宽松T恤水洗后易缩水变形，标注'水洗棉'或'预缩处理'的更稳定，商务通勤宽松衬衫不建议选100%棉(易皱)，选含少量涤纶或弹力纤维的免烫混纺87% similarUnverified含弹性纤维（氨纶/弹力尼龙）2%-5%的机洗外套比纯棉款版型稳定性更好，纯棉外套机洗5次后肩线和下摆易变形；但氨纶含量＞8%则不耐反复高温烘干，会加速纤维老化松弛87% similar
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