The papermaking test of calcium carbonate in laboratory proves that, this kind of production used as a filling material in high-quality cigarette paper can improve the porosity, b rightness of cigarette paper, and more filling was reserved.
经抄纸试验证明 ,该碳酸钙产品对于提高纸张的白度、不透明度、留着率有比较满意的结果 ,其理化指标与粒度分布测试结果显示符合卷烟纸填充之
