Abstract
To observe binder distribution, and obtain the relationship between drying method and binder distribution in the z-direction, Rhodamine B was used to stain the binder and as the probe to characterize z-directional distribution of the binder using LSCM. The results implied that it was reliable and effective method using LSCM to characterize the z-directional distribution of binder and analyze the influence of dry method on binder migration. It could be concluded that the dry method was critical to binder distribution in coated paper and vacuum drying accelerated binder migration to the base paper, however vacuum drying made uniform binder distribution. Infrared drying was good to producing little binder migration towards the interior of base paper, but infrared drying was disadvantageous to even binder distribution.
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