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流体力學 &
狹缝塗頭塗佈技術
狹縫塗頭塗佈技術
• 背景
• 系統
• 技術
• 製程工藝
• 結論
背景
• 狹縫塗頭基礎
• 密閉系統
• 分佈塗液均一
• 界定塗寬
• 保持溫度
背景
• 塗頭應用
• 粘度vs剪切率
• % 固含量
• 塗厚
• 粒徑
• 塗佈寬幅
• 生產線速度
• 操作溫度
背景
• 塗頭設計
• 流体力學
• 岐管流道
• 模体組成
• 塗液流量控制
背景
流体力學
•粘度
•剪切率 (壓力)
背景
流体力學
•牛頓流体
•高分子(非牛頓流体)
o Shear thinning
o Shear thickening


.


.


.


.


.
背景
流体力學(彈性体)
•製程知識
o G’ (儲存)
o G” (損失)
o tan 
系統
• 狹縫塗頭
• 調整基座
• 背輥
• 供膠系統
• 基材
系統
• 塗頭
o 岐管設計
o 製造公差
o 模唇段差
o 模唇形狀
系統
• 塗頭
o 固定模唇
o 可調模唇
o 附轉柱模唇(熱融膠)
系統
• 調整基座
o 對準角度
o 塗佈間隙
o 再現性
系統
• 背輥
o 外徑
o 真圓度
o 同心度
o 圓筒度
系統
• 供膠系統
o 正排液量
o 塗液流變性
o 密度
o 粒徑
o 剪切敏感性
系統
• 基材
o 變動量 (RTY)
o 表面能量
o 表面處理
o 真空盒
o 張力控制
技術
技術
• 直接塗佈
技術
• 張力塗佈
技術
• 淋幕塗佈
製程
• 全寬幅塗佈
• 條紋塗佈
• 間隔塗佈(平板塗佈)
• 多層塗佈
• 同時雙面塗佈
結論
• 系統
• 技術
• 製程工藝
Slot Die Coating Technology (CHINA)

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