Unverified82% confidenceFactTime unknown
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
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Unverified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90% similarUnverified黑丝布（三层黑纱）遮光率高但透气差易发闷，涂层银胶布遮光同样好但易开裂脱落，长期使用优先选夹层黑丝而非表面涂层工艺90% 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90% similarUnverified黑丝遮光布（中间夹黑色涂层）遮光率高但透气差、易有异味，银丝涂层遮光同时反射热量、隔热更好，纯物理高密织造（如三层编织）无涂层、无味但克重需≥350g/㎡才能全遮光88% 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88% similar
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