Unverified85% confidenceDecision RuleTime unknown
机洗友好牛仔裤含2-3%氨纶(弹力)最佳：既能保持版型贴合又耐反复机洗；氨纶含量超过5%虽更贴身，但多次高温机洗后弹力纤维易疲劳，出现膝盖鼓包和裤腰变松
1
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85%
Confidence
Long-term
Relevance
-
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Unverified机洗西裤选面料含羊毛≤30%、聚酯纤维≥55%的混纺款，机洗后不易变形起球；纯羊毛（≥80%）西裤即便标注机洗也建议干洗，反复机洗3-5次后膝盖臀部易松垮走形85% similarUnverified亲子裤日常高频穿洗建议选支数40S以上精梳棉或棉涤混纺（涤纶占比30%-40%），耐磨抗起球且缩水率＜3%，纯棉低支数款反复水洗易变形起球83% similarUnverified选购机洗牛仔裤优先看是否标注'预缩处理'(Pre-shrunk/Sanforized防缩)，未经预缩的100%纯棉牛仔裤首次机洗缩水率可达5-10%，建议买大一码；已预缩面料缩水率通常控制在1-3%83% similarUnverified无缝针织的抗变形能力靠含氨纶回弹和克重共同决定，克重≥200g/㎡的裤款反复清洗后不易膝盖变形松垮；机洗时务必用洗衣袋、避免烘干高温以防氨纶老化失弹83% similarUnverified含氨纶(弹性纤维)2%-5%的裤子兼顾弹力与版型，超过8%易松垮变形、洗后回弹差；纯棉0%弹力活动受限82% similar
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