[KongchangAI]
Unverified85% confidenceFactTime unknown

防晒面罩的防晒能力主要来自纱线密度和织物结构,而非冰感涂层;纯物理密织面料(如尼龙+氨纶)洗涤50次后仍保持UPF,而依赖化学涂层的产品洗几次后防晒力显著衰减

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85%
Confidence
Long-term
Relevance
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