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| Application Practice of Using Composite Mineral Fiber as Filler in Core Layer of Coated White Board |
| Received:May 01, 2019 |
| DOI：10.11980/j.issn.0254-508X.2019.09.013 |
| Key Words:coated white board composite mineral fibers non-plant fibers filling |
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| 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. |
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