复合矿物纤维在涂布白纸板芯层加填的应用实践

Application Practice of Using Composite Mineral Fiber as Filler in Core Layer of Coated White Board

关键词:  涂布白纸板  复合矿物纤维  非植物纤维  加填

Key Words:coated white board  composite mineral fibers  non-plant fibers  filling

摘要:在涂布白纸板芯层生产中添加复合矿物纤维，当复合矿物纤维加填量为5%时，可使网下白水浓度降低14.7%，芯层上浆阀门开度、浆料流量均下降，节省了浆料用量；纸板内结合强度提高37.4 J/m²，横向挺度降低15.7%，纵向挺度降低16.9%。在客户对纸板指标可接受的条件下，使用复合矿物纤维适度加填，涂布白纸板生产成本每吨纸板降低45~60元。

Abstract:Composite mineral fibers were used as filler adding in the core layer of coated white board. When the dosage of composite mineral fibers was 5%, the concentration of white water under the forming wire decreased by 14.7%, the opening of stock valve and stock flow of the core layer decreased, and the pulp consumption was saved. The internal bonding strength of the board increased by 37.4 J/m², the CD stiffness and the MD stiffness decreased by 15.7% and 16.9% respectively . Under the acceptable condition of paper property, the production cost of coated white board could be reduced by RMB 45~60 per ton by using composite mineral fibers as filler.