Unverified82% confidenceDecision RuleTime unknown
磁吸背扣适合别在羊毛大衣、西装等高档面料上（不留针孔）以及不方便扎孔的皮衣，但磁力扣不适合厚度超过3mm的衣物或帆布包，隔太厚会掉；普通别针背扣仍是书包、帆布包的首选
1
Sources
82%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified别针式（直插针+安全扣）适合厚面料如西装、大衣；针盘式/磁吸式适合真丝、针织等易勾丝面料，磁吸吸力需≥1500高斯才不易脱落89% similarUnverified厚重大衣/呢子外套选磁吸胸针（磁力≥4颗N52钕磁铁）更稳固不损伤面料，但内层含金属（心脏起搏器）人群禁用；薄款针织衫用磁吸易滑落，应选别针式89% similarUnverified厚重针织毛衣或大衣建议选择磁吸款，别针反复穿刺会导致粗针织物起球拉丝、大衣面料留下永久针孔；磁力≥3组磁片可稳固中大号胸针88% similarUnverified不建议为丝绸、羊绒等高价面料购买尖头单针胸针，反复穿刺会留下永久针孔；这类面料应选磁吸式(magnetic)胸针，通过磁力夹住面料无需穿刺86% similarUnverified针织衫、真丝等易勾丝面料应选磁吸式固定（磁力≥300gs），避免传统针扣拉出永久性勾丝孔洞85% similar
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