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分别采用刮刀、薄膜和帘式涂布技术对定量为38g/m2的低定量涂布原纸进行双面涂布中试,比较了它们对光学性质、表面粗糙度、涂布量分布和压缩均匀性等纸张表面特性的影响。研究表明,帘式涂布纸的涂布量最为均匀,但同时其涂布表面也是最粗糙的。由于帘式涂布使涂料轻轻地涂到原纸上,所以纸张的松厚度得到了很好的保留,并且与刮刀和薄膜涂布纸相比,帘式涂布纸具有更好的可压缩性。
The double-sided coating pilot test was conducted on the low basis weight coated base paper with a basis weight of 38 g / m2 by means of doctor blade, film and curtain coating respectively. Their optical properties, surface roughness, coating amount distribution and compression uniformity Such as paper surface characteristics of the impact. Studies have shown that the amount of curtain coated paper coating the most uniform, but at the same time the coating surface is the roughest. Because the curtain coating gently paints the coating on the base paper, the bulk of the paper is well preserved and the curtain coated paper has better compressibility than doctor blades and film coated paper .