Unverified80% confidenceDecision RuleTime unknown
领口和袖口的螺纹弹性直接影响卫衣舒适度与耐用度，双层螺纹或高密度罗纹在反复穿脱后不易松垮变形，是判断做工的重要细节。
1
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80%
Confidence
Long-term
Relevance
-
First Seen
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Unverified领口和袖口的耐久性取决于罗纹密度和是否使用弹性包边工艺，平缝(flatlock)接缝比普通车缝更耐磨且减少摩擦不适，长时运动优选平缝款85% similarUnverified袖口与下摆采用横织罗纹，弹性与回弹性优于普通螺纹结构，长期穿着后不易外翻变形，是该产品在细节耐久性上的实际优势。84% similarUnverified袖口、下摆的罗纹（螺纹）弹性和厚度决定卫衣寿命——罗纹越松垮越易失去回弹变成"喇叭袖"，选购时应拉伸测试回弹力，双层加密罗纹更耐穿84% similarUnverified看螺纹（袖口、下摆、领口）质量判断耐穿度：优质卫衣螺纹弹性回复好、含氨纶，拉伸后能回弹；劣质螺纹松垮无弹，几次穿着后袖口就『喇叭化』83% similarUnverified带安全锁扣的单针结构相比普通单针更不易脱落，但对比双针或C扣设计，佩戴超重厚实面料（如粗花呢外套）时仍有一定松动风险80% similar
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