Unverified80% confidenceTradeoffTime unknown
遮光率与手感质感存在权衡：涂层布遮光强但手感硬、有塑料感；棉麻遮光布质感好但遮光率通常≤80%，需内衬遮光布形成双层帘才能兼顾
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80%
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Long-term
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Unverified遮光率与美观度权衡：涂层布正面为普通布料背面涂层，垂感硬挺、易有反光和折痕；追求高档垂坠质感可选高密度提花或双层复合，遮光率略降至95%左右85% similarUnverified遮光原理决定质感：涂层遮光（黑丝/银胶背涂）便宜但可能有塑料感且怕高温易脱落，三层织造遮光（黑纱夹层）无涂层、手感如普通布且遮光率可达99%，追求耐用和质感选后者85% similarUnverified遮光率越高布料越厚重，垂坠感和显高显轻盈相冲突：追求99%全遮光的涂层布偏硬挺易显廉价，兼顾质感可选90%遮光的高克重亚麻感面料+遮光内衬双层设计83% similarUnverified涂层遮光布（背面白色/黑色胶层）遮光率高但不透气、易折痕开裂；提花三层编织布遮光率同样可达99%且垂感透气更好，长期使用优选后者82% similarUnverified遮光涂层布（银胶/黑丝三层布）遮光可达99%但透气差、易返味、折叠会出现涂层裂痕；提花高密度织物遮光约85-90%但手感更好更耐用，追求极致遮光选涂层，追求质感选高密织物82% similar
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