Unverified78% confidenceFactTime unknown
防晒头套的UPF会随洗涤和拉伸衰减，含物理防晒（二氧化钛处理）的耐久性优于化学涂层款，涂层款洗涤20-30次后防晒明显下降需更换
1
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78%
Confidence
Long-term
Relevance
-
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Unverified防晒口罩的UPF防护会随洗涤次数下降，选可机洗且标注洗涤后仍保持UPF50+（一般30-50次内有效）的产品，普通防晒面料洗涤20次后防护力明显衰减93% similarUnverified防晒衣的防晒力主要靠面料密度和涂层/助剂，选原纱型防晒（如凉感锦纶+氨纶）比后整理涂层型更耐水洗，涂层型洗涤50次后UPF可能衰减30%以上92% similarUnverified洗涤会降低防晒手套的UPF值，含涂层防晒的产品建议手洗且不超30次；追求防晒持久性应选原纱防晒（纤维本身抗UV）而非后整理涂层91% similarUnverified防晒面罩的UPF防护会随洗涤次数和面料拉伸变形而下降，物理遮挡型（致密织造）比涂层型更耐洗，涂层型洗几十次后防护明显衰减91% similarUnverified防晒面料的UPF会随洗涤和拉伸下降，含二氧化钛等物理防晒整理的产品比纯化学涂层耐洗，反复拉伸的运动款优选原纱防晒工艺91% similar
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