Unverified80% confidenceDecision RuleTime unknown
伞面材质中，涤纶配黑胶最常见性价比高，纺锤形碰击布轻薄但遮光稍弱；防晒优先看涂层而非面料本身，浅色伞面内侧一定要有深色涂层
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80%
Confidence
Long-term
Relevance
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Unverified面料克重影响遮光与重量：涤纶黑胶涂层遮光好但偏重，透气纱网轻便但遮光弱；夏季推荐纱网+局部黑胶组合，兼顾轻量与防晒84% similarUnverified涤棉材质透气性优于银胶/黑胶涂层款，但遮光率和防水性不如涂层款，适合通风需求优先于极致遮光的场景83% similarUnverified黑胶涂层遮光率最高（近99%）但吸热易发烫、内层贴脸闷热；胶囊伞多用银胶或彩胶，遮光率约90%-95%但更凉爽，优先选'外黑内彩'或'外银内黑'结构82% similarUnverified遮光原理分两类：银胶/黑胶涂层布靠背面涂层遮光（涂层可能开裂脱落，怕高温），高密度提花/黑丝布靠织物本身密度遮光（更耐用、可水洗但价格高），追求长期耐用选后者81% similarUnverified遮光原理选涂层还是高密织造：涂层布（银胶/黑胶）遮光率高但透气差、久用可能开裂脱落；高密提花织物遮光约90%但更耐用透气、可水洗，长期使用优先高密织造80% similar
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