Unverified80% confidenceDecision RuleTime unknown
低幼卡片圆角半径应≥5mm且厚度≥1.5mm（350g以上白卡纸），太薄易被撕咬折损，圆角不足会划伤幼儿
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
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% 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83% similarUnverified卡片圆角处理+厚度≥1mm（约300g/㎡以上白卡纸或PP塑料）适合1岁内可自主抓握阶段，防止划伤和撕咬吞咽风险；撕不烂布书材质更适合口欲期反复啃咬82% 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79% similarUnverified材质厚度建议选300g以上铜版纸或PP塑料卡，太薄(＜250g)易卷边翘曲影响竖立展示，且宝宝抓握易折损；4月龄后宝宝会抓咬，优先选圆角+覆膜或PP材质79% similar
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