Unverified85% confidenceDecision RuleTime unknown
检验弹力回弹：将面料横向拉伸至最大后松开，正常状态应在2秒内完全回弹无残留松弛，若出现'波浪状褶皱'或回弹后局部变薄发白，说明弹性纤维已断裂，不建议购买
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Unverified优质弹力连体服拉伸回弹测试标准：将袖口/领口横向拉伸至1.5倍长度后松开，应能在3秒内回弹90%以上无明显褶皱残留，回弹差的面料多次洗涤后会永久变形81% similarUnverified验货时用手按压羽绒服后松开，优质羽绒3-5秒内快速回弹恢复蓬松；若回弹缓慢或按压后手感有硬块，说明羽绒受潮、结块或含绒量不足78% similarUnverified验货时用手抓捏后松开，优质羽绒应在3-5秒内自然回弹恢复原状；若回弹缓慢或按压后长时间凹陷，说明羽绒已结块或含绒量虚标，保暖性大幅折损78% similarUnverified含氨纶/弹性面料的裤装超过洗涤30次后弹性纤维疲劳，判断标准：拉伸后松开若3秒内无法回弹或腰头出现横向波浪褶，说明弹力已衰减，不建议购买78% similarUnverified判断抗皱性的现场测试：将面料握紧攥几秒后松开，褶皱在10~20秒内自动回弹平整的为高抗皱面料，长久保留死褶的不适合免烫需求76% similar
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