Unverified78% confidenceFactTime unknown
正规防晒衣的UPF防护力可持续，但涂层型经约20-30次水洗后防护性能明显下降；原纱型因成分在纤维内部，水洗后防护力基本稳定
1
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78%
Confidence
Long-term
Relevance
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Unverified化纤类防晒面料的UPF不因水洗降低，可长期使用；但含棉混纺或喷涂防晒剂的口罩水洗20-30次后防护力明显衰减，看清材质标注90% similarUnverified遮阳篷的UPF防护会随水洗次数和布料老化下降，涂层类防晒布洗涤20-30次后防护力明显衰减，而纤维本身高密度织造的面料防晒更耐久90% similarUnverified涂层类防晒口罩水洗后UPF值会逐渐衰减，一般30-50次水洗后防晒力明显下降；纤维本征型（如高密涤纶、原液着色纱）耐洗性好，注重耐用选纤维型89% similarUnverified防晒效果会随洗涤和拉伸衰减：涂层型面罩水洗20-30次后UPF明显下降，追求耐用应选纤维本身致密（非涂层）的原纱型防晒面料86% similarUnverified防晒效果依赖织物密度和后整理涂层，涂层型口罩水洗30次后UPF会明显衰减，选择原纱防晒(如冰氧吧/凉感纱)的产品耐洗性更持久86% similar
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