Unverified80% confidenceFactTime unknown
内搭洗涤缩水率国标要求水洗尺寸变化率优于-5%~+5%为合格，优质内搭可控制在±3%以内，纯棉未经预缩处理的常达-8%以上
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Unverified纯棉polo缩水率通常3-5%，购买时建议选大半码或认准预缩（pre-shrunk）水洗标；混纺涤棉缩水率＜2%更稳定但吸湿性下降92% similarUnverified纯棉白T水洗3-5次后普遍缩水3%-5%，购买时选比合身尺码大半码，或认准标注"预缩处理/水洗定型"的产品可将缩水控制在2%以内91% similarUnverified缩水率标准：合格内衣水洗缩水率应≤5%，优质产品≤3%；水洗标注明'预缩处理'或'防缩水'的产品更可靠，纯棉未预缩产品首洗缩水常达8%以上90% similarUnverified洗后变形率控制：认准水洗标注的缩水率≤5%，纯棉高弹款下水前建议按大一码选（预留缩水空间），含涤混纺款缩水率低可选正常码90% similarUnverified洗涤方便性看是否可机洗+不易缩水，纯棉睡衣缩水率通常3-5%，选购时建议比实际尺码大一码；预缩水处理（标注防缩）的面料更省心87% similar
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