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研究了颜料的不同粒径分布,特别是窄粒径分布对涂布纸涂层性能的影响。结果表明窄粒径分布能增加涂层性能,颜料粒子的窄粒径堆砌结构形成的湿涂布层的微粒堆积密度较小,形成更开放式的滤饼层,导致快速脱水,具有较高的湿孔隙率,较低的不动点固含量,较高的光散射系数,粒子的均一性也赋予涂层具有较好的平滑度和光泽度。
The effect of pigment particle size distribution, especially narrow particle size distribution, on the coating properties of coated paper was studied. The results show that the narrow particle size distribution can increase the coating performance, the particle packing density of the wet coating formed by the narrow particle size packing structure of the pigment particles is smaller, forming a more open filter cake layer, resulting in rapid dehydration with higher Wet porosity, lower fixed point solids, higher light scattering coefficient, and uniformity of the particles also impart good smoothness and gloss to the coating.