Unverified88% confidenceDecision RuleTime unknown
卡片材质厚度需≥300g铜版纸或PVC覆膜，圆角半径≥3mm，边缘无毛刺，可入口啃咬阶段（2-3岁）优先选PP材质防撕咬防水可擦洗
1
Sources
88%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Related Claims
Unverified卡片厚度≥300g铜版纸或PVC覆膜，圆角R≥5mm，边缘无毛刺，才能承受幼儿反复抓咬撕扯；薄于250g的普通卡纸2周内易起毛卷边87% similarUnverified卡片尺寸应≥9×9cm，太小的卡片老人手部抓握困难，圆角设计可避免边缘划伤，300g以上铜版纸或PVC覆膜材质能承受反复擦拭和唾液沾染85% similarUnverified3岁以下幼儿使用的卡片圆角半径应≥5mm且卡片厚度≥1.5mm（约350g铜版纸覆膜或PVC材质），防止边角划伤口腔且不易被撕咬变形84% similarUnverified卡片材质安全设计硬指标：3岁以下选圆角半径≥5mm、纸板厚度≥1.5mm的覆膜白卡，边缘需过塑防止纸屑入口；卡片尺寸边长应≥8cm避免误吞风险83% similarUnverified随身携带型（放书包/挂脖）优先选PVC覆膜或PP材质防水卡，厚度0.3-0.76mm（相当于银行卡厚度）耐折不易破损；纸质卡即使覆膜，反复弯折后仍易脱层进水83% similar
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