Unverified80% confidenceDecision RuleTime unknown
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
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Unverified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95% similarUnverified防晒面料的紫外线阻隔能力会随水洗次数衰减，涂层型面料水洗50次后UPF可能明显下降；应选纤维本身防晒（如原液着色纱线）而非后整理涂层的产品94% similarUnverified物理遮蔽型防晒（高密织物+浅色）比涂层化学防晒更耐洗，涂层防晒裤水洗30-50次后UPF值会明显衰减，认准'纤维本身防晒'或'凉感锦纶'工艺94% similarUnverified涤纶/尼龙原纱型防晒(如凉感纤维织入)水洗50次后防晒不衰减；后整理涂层型防晒衣水洗20-30次后UPF明显下降，长期使用选原纱型93% 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93% similar
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