Unverified80% confidenceTradeoffTime unknown
洗涤后变形主要看含棉量与工艺：纯棉款（100%棉）柔软透气但缩水率可达3-5%易变形，混纺款（棉85%+氨纶或涤纶）尺寸稳定性更好；给快速长个的儿童买纯棉款时建议大买一码预留缩水量
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80%
Confidence
Long-term
Relevance
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Unverified纯棉面料透气性好但缩水率存在，初次洗涤前建议冷水手洗或低温机洗，避免儿童款洗后尺寸偏差影响穿着周期90% similarUnverified为保证洗后不变形，选纯棉含量≥95%且预缩水处理的面料，或棉+氨纶（5%以内）混纺增加抗变形；纯化纤易起球起静电但缩水率低90% similarUnverified纯棉缩水率通常3%-5%，购买时若为纯棉未做预缩处理建议选大一码，或认准标注‘预缩/水洗’的成衣；棉+氨纶或棉+涤纶混纺缩水率可控制在2%以内88% similarUnverified纯棉材质初次机洗后存在一定缩水概率，建议购买时在惯常穿着尺码基础上酌情选大一码，尤其儿童款。88% similar
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