中文摘要：

介绍了在纸和纸板成形过程中控制松厚度的目的及意义,综述了造纸纤维原料、浆料种类、打浆操作、填料、化学品、压榨、干燥、压光等因素对纸和纸板松厚度性能的影响。同时还介绍了提高纸和纸板松厚度的方法,总结了造纸企业生产过程中提高纸和纸板松厚度的有效措施。

英文摘要：

Although the bulk of paper and board is a simple concept,it has been receiving increased attention from the papermakers and endusers. In this paper,the concept and significance of the bulk of paper and board were described,and the main factors affecting the bulk of paper and board were discussed,including raw materials,pulp types,refining,fillers,chemicals,pressing,drying and calendering. The effective ways of improving the bulk of paper and board in the manufacturing process was summarized.