Unverified88% confidenceDecision RuleTime unknown
防晒衣防晒力主要靠面料密度、纤维本身和涂层三种途径，其中涂层型（后整理）水洗20-30次后UPF会显著衰减，原纱型（二氧化钛混入纤维）耐洗性更强，长期使用选原纱型
1
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88%
Confidence
Long-term
Relevance
-
First Seen
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Unverified面料的防晒能力主要来自织物密度和涂层：原纱型防晒（防晒剂织入纤维）耐水洗50次以上仍有效，涂层型防晒洗20次后UPF值会明显衰减，长期用选原纱型95% 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94% 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94% 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92% similarUnverified防晒能力主要靠面料本身的钛白/氧化锌涂层或高密度织造，而非'凉感涂层'；涂层型防晒衣洗涤20-30次后UPF会明显衰减，原纱型（防晒成分融入纤维）耐水洗更持久，长期用选原纱型92% similar
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