Unverified90% confidenceDecision RuleTime unknown
无痕内搭优先选激光切割或热切热压工艺（无缝合线），下摆和袖口切口无卷边、无缝线痕，才能在贴身衣物外真正隐形；普通折边缝纫工艺会在紧身外衣下显出边缘印
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90%
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Long-term
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Unverified无痕内衣的'无痕'来自胶合/压边工艺（bonding）替代车缝线，边缘应为热压或激光切割；若仍有明显缝线则外衣仍会透印91% similarUnverified采用热压切口无痕工艺，边缘无缝线，贴身穿着时外层薄衣不易显痕迹86% similarUnverified外穿无痕关键看边缘工艺：激光切割（无缝热熔边）比包边、蕾丝边更隐形，适合紧身衣物；但激光边耐洗性较差，机洗易卷边，建议手洗或洗衣袋86% similarUnverified无痕内衣（激光切割/热压边）外穿不显痕但透气性差、松紧带耐久性弱；传统包边内衣耐穿但边缘会在紧身衣下留印，需按外穿需求取舍85% similarUnverified真正的无骨工艺采用一线成型或热压粘合，接缝处平整无凸起线头；外翻缝（外露缝）则把缝合边翻到外侧，两者都能避免磨皮肤，但外翻缝耐洗性更强、无骨舒适度更高83% similar
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