高档卷烟纸专用PCC生产过程质量控制技术

高档卷烟纸专用沉淀碳酸钙（PCC）的质量要求包括平均粒径与粒径分布、晶形、游离碱、沉降体积、白度等5个主要指标。分别从浆液浓度与相对密度的关系、碳化反应温度控制、窑气浓度与流量选择、沉降体积控制、生浆和熟浆陈化、过度碳化和磷酸中和处理包裹返碱现象、加强生产过程质量管理环节等方面探讨了高档卷烟纸专用PCC的生产过程中的质量控制技术。

Quality control technology in production process of special PCC for high-grade cigarette paper

There are five main indexes,including average particle size and size distribution,morphology,free-alkali content,subsidence volume,and degree of whiteness,for the quality of special precipitated calcium carbonate(PCC) used for high-grade cigarette paper.The quality control technology in production process of special PCC for high-grade cigarette paper from the links of relationship between slurry concentration and relative density,carbonization reaction temperature control,kiln gas concentration and flow con...