Unverified85% confidenceFactTime unknown
面料防晒能力看织物密度而非厚度：深色+高密度机织涤纶/锦纶防晒优于浅色棉麻，纯棉未经处理仅UPF5-10，湿水后防护力还会下降
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85%
Confidence
Long-term
Relevance
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Unverified防晒衣的防晒效力来自面料本身编织密度与后整理，湿水后UPF会显著下降（棉类尤甚），涉水/大量出汗场景应选涤纶或含氨纶的针织速干防晒衣而非纯棉款89% similarUnverified涤纶(聚酯纤维)本身防晒性优于棉、麻，且吸湿快干；纯棉袖套虽亲肤但湿水后防晒力和凉感均下降，长时间户外不推荐纯棉89% similarUnverified不建议选纯棉材质防晒衣，棉纤维本身UPF值低（约UPF5-10）、吸汗后紧贴皮肤更闷，且水洗后易变形缩水，孕妇防晒衣应选锦纶/涤纶混纺88% similarUnverified涤纶/锦纶材质本身防晒优于纯棉，且速干易洗；纯棉防晒服虽亲肤但遇汗易湿重不干、防晒力弱，户外/多汗人群应选涤锦混纺88% similarUnverified防晒裤的防晒能力主要来自纤维本身（涤纶/锦纶天然阻挡紫外线）而非涂层，纯棉即使加涂层也难持久，选涤纶或锦纶含量高的面料才能水洗多次不失效88% similar
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