| 摘要 |
A method of curtain coating, the curtain being formed from at least one layer of coating solution having a composite density rho (kgm-3) and a total volumetric flow rate per unit curtain width Q (m2s-1), the curtain being allowed to free fall a distance h (m), at a velocity U (ms-1), onto a continuously moving substrate having a velocity S (ms-1) with an application angle of theta between the horizontal and tangent to the substrate at the point of impingement, the dynamic surface tension at the rear of the falling curtain being sigma (mNm-1), the aforementioned variable parameters being controlled so as to prevent recirculation.
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