Unverified80% confidenceDecision RuleTime unknown
接缝工艺看针脚密度(每3cm≥8针为佳)和是否双线锁边，防泼水外套若无压胶/热熔条则接缝处仍会渗水
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80%
Confidence
Long-term
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Unverified缝线针脚密度是工艺分水岭：每3cm内针脚≥8针且间距均匀、走线笔直无跳线，边缘封边（漆边）平整无开裂的属高工艺；粗大不均针脚1-2年内易脱线开边79% similarUnverified绗缝针脚密度建议8-10针/3cm，针脚过密（>12针）会刺穿面料形成钻绒通道，过疏（<6针）则填充物易移位堆积79% similarUnverified接缝工艺看针脚密度，每3cm有12-14针为优质（针距约2.2mm），针距过大易开线；肩部和口袋等受力处应有回针加固或套结（bar tack）77% similarUnverified接缝压胶宽度需≥13mm才能长期防水；13mm以下窄压胶(如某些超轻款用的8mm)在反复揉搓后更易脱胶漏水74% similarUnverified胶带宽度应≥接缝车缝线迹宽度+两侧各3mm，普通冲锋衣接缝选20mm宽即可，宽面料拼接或帐篷选22-25mm，过窄会导致边缘翘起漏水74% similar
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