Unverified85% confidenceFactTime unknown
荧光底色亮度依赖染料浓度，反复水洗和紫外线暴晒会使荧光减退，褪色后即使反光带完好也不再符合白天可视标准；荧光黄比荧光橙在白天和阴天更醒目，荧光橙在雪地或绿植背景下辨识度更高
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85%
Confidence
Long-term
Relevance
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Unverified荧光黄绿底色在白天也有较高醒目度，但经长期阳光暴晒后荧光色会褪色，影响白天可见性，户外长期暴晒存放需注意88% similarUnverified荧光橙比荧光黄在雾天、黄昏及植被背景下辨识度更高；荧光黄在城市水泥/柏油路面白天可视性更好，按环境选底色81% similarUnverified荧光色越鲜艳其色牢度往往越差，因荧光增白/增艳剂在多次水洗和紫外线照射下易分解；追求持久亮色应选大厂经过日晒牢度≥4级、水洗牢度≥3-4级认证的产品81% similarUnverified荧光色的高可见度与防晒是矛盾的：荧光染料主要在可见光谱反射，对紫外线阻挡有限，浅荧光色（荧光黄/荧光绿）UPF值通常低于深色，需依赖面料密织或防晒涂层达到UPF50+80% similarUnverified抛光粉晶球长期阳光直射可能导致颜色变浅褪色，摆放位置应避免强光暴晒79% similar
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