Unverified85% confidenceTradeoffTime unknown
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
1
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85%
Confidence
Long-term
Relevance
-
First Seen
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Unverified三层复合遮光布（面料+黑丝+背布）遮光和挺括度好但硬挺不易垂坠且厚重难晒干；单层黑丝涂层布轻便但涂层直接暴露易磨损；高密提花布手感垂坠、可机洗但遮光通常在90%左右90% similarUnverified涂层遮光（银胶/黑丝涂层）比高密度织造遮光更彻底，但涂层长期会开裂脱落且不透气；三层高密度提花布遮光率约90%-95%但更耐用透气，追求99%全黑选涂层，追求耐用选高密度织造89% similarUnverified真正的高遮光靠面料本身密织+黑丝涂层实现，而非颜色深浅。选购时应把面料对着强光看是否透光，深色但薄的窗帘可能仅遮光70%，浅色三层复合布反而能达99%89% 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88% similarUnverified遮光原理分三类：涂层遮光（背面PU/银胶涂层，遮光率高但涂层易开裂脱落、不透气）、三层织造遮光（黑丝夹层，遮光率95%左右、可水洗、更耐用）、高密度厚织（无涂层，遮光率约70-85%但手感垂坠自然）。追求久用选三层织造，追求极致全黑选涂层88% similar
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