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研究了加填对低定量卫生纸白度的影响。结果表明,随着加填量的增加,纸张白度随之增大,而形状为均匀的纺锤状的沉淀碳酸钙(PCC)比片状的研磨碳酸钙(GCC)更能显著地提高纸张的白度。同时,纸张定量超过18 g·m~(-2)后,提高纸张定量不能有效地提高纸张白度,但是选择合适的浆料及其配比能显著地提高纸张的白度。
The effect of filling on the whiteness of low-weight toilet paper was studied. The results showed that the whiteness of the paper increased with the increase of the filling amount and the shape of the spindle-like precipitated calcium carbonate (PCC) was more significantly than the flaky ground calcium carbonate (GCC) BaiDu. Meanwhile, when the basis weight of the paper is more than 18 g · m -2, increasing the paper quality can not effectively improve the whiteness of the paper, but choosing the proper size and proportion of the paper can obviously improve the whiteness of the paper.