Unverified82% confidenceDecision RuleTime unknown
纯棉卫衣（尤其21支以上厚磅）水洗后普遍缩水3-5%且易变形起球，追求版型持久应选棉+涤混纺（如80%棉20%涤）或加入氨纶的面料
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82%
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Long-term
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Unverified面料优选精梳纯棉克重180-220g/㎡或含5%左右氨纶的莫代尔混纺，兼顾亲肤与拉伸回弹；纯棉100%易缩水，混纺则牺牲部分透气性90% similarUnverified面料厚实耐洗、领口不易变形，但200g纯棉在多次水洗后仍可能有一定缩水，建议购买时适当选大一码89% similarUnverified看成分表选纯棉需谨慎——100%纯棉卫衣缩水率通常达3-5%，首次下水后袖长可缩短1-2cm；含5-10%氨纶或涤纶的混纺款缩水率可控制在2%以内且更抗变形89% similarUnverified纯棉卫衣首次下水会缩水3-5%，重磅纯棉更明显；介意版型的人应买大一码或选预缩水/棉混(加5%涤纶或氨纶)减少变形89% similarUnverified全棉重磅约370g面料挺括厚实、上身有分量感，但纯棉材质洗后易缩水，首次下水前建议提前买大半码。89% similar
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