Unverified78% confidenceDecision RuleTime unknown
深色面料尤其黑色需检查透光性：单层薄涤纶或针织在强光下透底，选带内衬或克重≥200g/㎡的面料
1
Sources
78%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified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%85% similarUnverified涂层遮光布（黑丝/三层夹层）遮光靠涂层，克重通常300-400g/㎡；高织高密提花布靠纱线密度遮光更透气但遮光率多为85-95%，纯全黑需靠涂层实现84% 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82% similarUnverified真正遮光靠的是布料背面的黑丝或涂层，'三层编织无涂层'的遮光布克重需≥260g/㎡才能达到90%以上遮光，纯色纺织无涂层布几乎无法全遮光81% similarUnverified遮光布应选'涂层遮光布（黑胶/银胶）'而非纯织物，纯织物遮光率仅60-70%，涂层遮光布可达90%以上，判断方法是对光观察是否透亮80% similar
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