Unverified88% confidenceDecision RuleTime unknown

遮光窗帘遮光率分级：涂层遮光布遮光率90-95%仍会透边光，全遮光需选三层复合织造+背涂黑丝布结构，遮光率可达99%以上，且需搭配遮光盒或轨道贴墙安装才能消除四周漏光

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Unverified全遮光卷帘遮光率需达99%以上，且面料背面需带涂层（如三层涂层/银胶涂层）才能真正实现卧室遮光，单纯厚面料无涂层仍会透光88% similar Unverified追求遮光率不能忽视透光边缘：即使布料100%遮光，窗帘与墙面间隙、顶部漏光仍会大量透光。需搭配轨道弯头包边或加宽帘布至窗户两侧各20cm以上，顶部用箱式帘头或安装到天花板87% similar

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