Unverified70% confidenceFactTime unknown
涂层型防晒帽（面料喷防晒涂层）洗涤多次后防护力会衰减，机洗+暴晒加速失效；追求耐用防晒选原纱防晒（纤维本身抗UV）面料
1
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70%
Confidence
Long-term
Relevance
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Unverified涂层型防晒帽（表面涂胶/银胶）防晒靠涂层，多次水洗和摩擦后UPF会明显衰减；纤维本征防晒（高密织造+原液着色）耐洗性远优于涂层款89% similarUnverified涂层型防晒（在面料表面涂UV隔离剂）洗涤20次后防护力显著衰减，原纱型（纤维内添加防晒母粒）耐水洗更持久88% similarUnverified涂层型防晒面巾（表面有胶感）多次机洗后防晒涂层脱落，防护力衰减明显；原纱型防晒（纤维本身抗UV）水洗50次以上仍稳定，需长期使用优选原纱型88% similarUnverified化学涂层防晒（喷涂后整理剂）面罩不耐洗，洗涤20-30次后UPF会明显衰减；追求耐用应选纤维本身高密度物理防晒的面料（如原液着色/致密涤纶），可反复水洗不掉防护87% similarUnverified涂层型防晒面罩（表面附着防晒涂层）不建议长期机洗，涂层会随洗涤次数递减防晒力，追求耐用应选原纱防晒面料（防晒性能来自纤维本身，水洗不衰减）87% similar
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