Influence of the VAE emulsion binder addition on properties of the coated board

초록

This study was focused on effective use of the vinyl acetate-ethylene (VAE) emulsion when it was formulated with SB-latex as a new coating binder for paper coating application. Two kinds of SB-latex having a difference in their particle size were used as comparative binders in the formulation of the pre and top side coating respectively, since the SB-latex binders were conventionally used in paper coating. In order to investigate their possibility as new binder in each formulation of the pre and top side coating, two kinds of VAE emulsion binders were tested with each of addition level 10, 20, 30, and 100 wt%. VAE emulsion binder showed a similar result of the optical properties of coated paper, when it compared with SB-latex binder. It was out that in case of the ink setoff, the coated paper with VAE emulsion binder was a better result than the coated paper with SB-latex binder. It was believed that in case of pick strength, VAE emulsion binder could be only used in the pre coating formulation replaced SB-latex, when SB-latex was mainly used in the formulation of the top side coating with addition amount of the binder ranged from 90 to 100 wt%.

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