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涂布纸的性能在很大程度上受原纸性能的影响。研究原纸白度,原纸与颜料配比的相互作用对涂布纸白度的影响。实验结果表明:涂布纸白度与原纸白度几乎呈正比关系,涂布量的变化不改变它们的正比关系,只是直线斜率随涂布量的升高而降低;对低白度的原纸来说,涂料中高岭土含量越高能更容易提高涂布纸白度,而对较高白度的原纸来说,涂料中碳酸钙的含量越高涂布纸白度越高,对中等白度原纸来说,配方中颜料配比对成纸白度影响不大。
Coated paper performance is greatly affected by the performance of the base paper. The paper studies the whiteness of base paper and the influence of the interaction between base paper and pigment on the whiteness of coated paper. The experimental results show that: the whiteness of coated paper is almost proportional to the whiteness of the original paper, the change of coating amount does not change their proportional relationship, but the straight line slope decreases with the increase of coating amount; Said that the higher the kaolin coating can more easily increase the whiteness of coated paper, while the higher whiteness of the raw paper, the higher the content of calcium carbonate coating paper whiteness higher, to medium white paper to Said that the ratio of pigment in the formula has little effect on the whiteness of the paper.